ADDONS DOCUMENTATION
Version: 1.9.0.15

Index

AI Goals
minecraft.behavior.scared
minecraft:behavior.avoid_mob_type
minecraft:behavior.beg
minecraft:behavior.break_door
minecraft:behavior.breed
minecraft:behavior.charge_attack
minecraft:behavior.circle_around_anchor
minecraft:behavior.controlled_by_player
minecraft:behavior.defend_village_target
minecraft:behavior.door_interact
minecraft:behavior.dragonchargeplayer
minecraft:behavior.dragondeath
minecraft:behavior.dragonflaming
minecraft:behavior.dragonholdingpattern
minecraft:behavior.dragonlanding
minecraft:behavior.dragonscanning
minecraft:behavior.dragonstrafeplayer
minecraft:behavior.dragontakeoff
minecraft:behavior.drop_item_for
minecraft:behavior.eat_block
minecraft:behavior.enderman_leave_block
minecraft:behavior.enderman_take_block
minecraft:behavior.find_mount
minecraft:behavior.find_underwater_treasure
minecraft:behavior.flee_sun
minecraft:behavior.float
minecraft:behavior.float_wander
minecraft:behavior.follow_caravan
minecraft:behavior.follow_mob
minecraft:behavior.follow_owner
minecraft:behavior.follow_parent
minecraft:behavior.go_home
minecraft:behavior.guardian_attack
minecraft:behavior.harvest_farm_block
minecraft:behavior.hurt_by_target
minecraft:behavior.lay_down
minecraft:behavior.lay_egg
minecraft:behavior.leap_at_target
minecraft:behavior.look_at_entity
minecraft:behavior.look_at_player
minecraft:behavior.look_at_target
minecraft:behavior.look_at_trading_player
minecraft:behavior.make_love
minecraft:behavior.melee_attack
minecraft:behavior.mount_pathing
minecraft:behavior.move_indoors
minecraft:behavior.move_through_village
minecraft:behavior.move_to_land
minecraft:behavior.move_to_water
minecraft:behavior.move_towards_restriction
minecraft:behavior.move_towards_target
minecraft:behavior.nearest_attackable_target
minecraft:behavior.ocelot_sit_on_block
minecraft:behavior.ocelotattack
minecraft:behavior.offer_flower
minecraft:behavior.open_door
minecraft:behavior.owner_hurt_by_target
minecraft:behavior.owner_hurt_target
minecraft:behavior.panic
minecraft:behavior.peek
minecraft:behavior.pet_sleep_with_owner
minecraft:behavior.pickup_items
minecraft:behavior.play
minecraft:behavior.player_ride_tamed
minecraft:behavior.raid_garden
minecraft:behavior.random_breach
minecraft:behavior.random_fly
minecraft:behavior.random_look_around
minecraft:behavior.random_sitting
minecraft:behavior.random_stroll
minecraft:behavior.random_swim
minecraft:behavior.ranged_attack
minecraft:behavior.receive_love
minecraft:behavior.restrict_open_door
minecraft:behavior.restrict_sun
minecraft:behavior.roll
minecraft:behavior.run_around_like_crazy
minecraft:behavior.send_event
minecraft:behavior.share_items
minecraft:behavior.silverfish_merge_with_stone
minecraft:behavior.silverfish_wake_up_friends
minecraft:behavior.skeleton_horse_trap
minecraft:behavior.slime_attack
minecraft:behavior.slime_float
minecraft:behavior.slime_keep_on_jumping
minecraft:behavior.slime_random_direction
minecraft:behavior.snacking
minecraft:behavior.sneeze
minecraft:behavior.squid_dive
minecraft:behavior.squid_flee
minecraft:behavior.squid_idle
minecraft:behavior.squid_move_away_from_ground
minecraft:behavior.squid_out_of_water
minecraft:behavior.stay_while_sitting
minecraft:behavior.stomp_attack
minecraft:behavior.stomp_turtle_egg
minecraft:behavior.summon_entity
minecraft:behavior.swell
minecraft:behavior.swim_wander
minecraft:behavior.swoop_attack
minecraft:behavior.take_flower
minecraft:behavior.tempt
minecraft:behavior.trade_with_player
minecraft:behavior.vex_copy_owner_target
minecraft:behavior.vex_random_move
minecraft:behavior.wither_random_attack_pos_goal
minecraft:behavior.wither_target_highest_damage
Filters
clock_time
has_ability
has_biome_tag
has_component
has_damage
has_equipment
has_tag
in_caravan
in_clouds
in_lava
in_water
in_water_or_rain
is_altitude
is_biome
is_brightness
is_climbing
is_color
is_daytime
is_difficulty
is_family
is_game_rule
is_humid
is_immobile
is_moving
is_owner
is_riding
is_sneaking
is_snow_covered
is_target
is_temperature_type
is_temperature_value
is_underground
is_underwater
is_variant
moon_intensity
moon_phase
on_ground
on_ladder
Entities
Blocks
Geometry
Blocks
Client Entity Documentation
identifier
min_engine_version
materials, textures, animations
scripts
animations
animation_controllers
particle
render_controllers
locators

enable_attachables
Spawn Egg
Server Entity Documentation
Entity Definition Properties
Entity Description Properties
Attributes
Properties
Components
Triggers
Built-in Events
ID Lists
Data-Driven Spawning
Spawn Rules
ID Lists
Component IDs

AI Goals

minecraft.behavior.scared

Allows the a mob to become scared when the weather outside is thundering

Parameters

Name	Type	Default Value	Description
sound_interval	Integer	0	The interval in which a sound will play when active in a 1/delay chance to kick off

minecraft:behavior.avoid_mob_type

Allows this entity to avoid certain mob types.

Parameters

Name

Type

Default Value

Description

entity_types

JSON Object

List of entity types this mob avoids.

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

ignore_visibility

Boolean

false

If true, visbility between this entity and the mob type will not be checked.

max_dist

Decimal

0.0

Maximum distance to look for an entity

max_flee

Decimal

0.5

Distance in blocks within the mob considers it should stop fleeing.

probability_per_strength

Decimal

1.0

Determines how likely it is that this entity will stop avoiding another entity based on that entity's strength

sprint_speed_multiplier

Decimal

1.0

Multiplier for running speed. 1.0 means keep the regular speed, while higher numbers make the running speed faster

walk_speed_multiplier

Decimal

1.0

Multiplier for walking speed. 1.0 means keep the regular speed, while higher numbers make the walking speed faster

minecraft:behavior.beg

Allows this mob to look at and follow the player that holds food they like.

Parameters

Name	Type	Default Value	Description
items	List		List of items that this mob likes
look_distance	Decimal	8.0	Distance in blocks the mob will beg from
look_time	Range [a, b]	[2, 4]	The range of time in seconds this mob will stare at the player holding a food they like, begging for it

minecraft:behavior.break_door

Allows this mob to break doors.
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minecraft:behavior.breed

Allows this mob to breed with other mobs.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.charge_attack

Allows the mob to attack its target by running at it.
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minecraft:behavior.circle_around_anchor

Allows the mob to move in a circle around a point or a target.

Parameters

Name	Type	Default Value	Description
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
height_above_target_range	Range [a, b]	[0.0, 0.0]	When the mob finds a target, the range of height in blocks above the target to start the anchor point.
height_change_chance	Integer	350	A random value to determine when to change the height of the mob from the anchor point. This has a 1/value chance every tick to do so.
height_offset_range	Range [a, b]	[0.0, 0.0]	The range of height in blocks offset the mob can have from it's anchor point.
radius_change_chance	Integer	250	A random value to determine when to increase the size of the radius up to the maximum. This has a 1/value chance every tick to do so.
radius_range	Range [a, b]	[5.0, 15.0]	Range of radius in blocks of the circle to move around.
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.controlled_by_player

Allows the mob to be controlled by the player.
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minecraft:behavior.defend_village_target

Allows the mob to stay in the village and fight mobs hostile to the villagers.

Parameters

Name

Type

Default Value

Description

entity_types

JSON Object

List of entity types this mob considers a threat to the village

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

minecraft:behavior.door_interact

Allows the mob to open and close doors.
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minecraft:behavior.dragonchargeplayer

Allows the dragon to attack a player by flying fast at them. The player is chosen by the dragonscanning goal. Can only be used by the Ender Dragon.
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minecraft:behavior.dragondeath

Allows the dragon to go out with glory. This controls the Ender Dragon's death animation and can't be used by other mobs.
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minecraft:behavior.dragonflaming

Allows the dragon to use its flame breath attack. Can only be used by the Ender Dragon.
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minecraft:behavior.dragonholdingpattern

Allows the Dragon to fly around in a circle around the center podium. Can only be used by the Ender Dragon.
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minecraft:behavior.dragonlanding

Allows the Dragon to stop flying and transition into perching mode. Can only be used by the Ender Dragon.
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minecraft:behavior.dragonscanning

Allows the dragon to look around for a player to attack while in perch mode. Can only be used by the Ender Dragon.
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minecraft:behavior.dragonstrafeplayer

Allows the dragon to fly around looking for a player and shoot fireballs at them. Can only be used by the Ender Dragon.
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minecraft:behavior.dragontakeoff

Allows the dragon to leave perch mode and go back to flying around. Can only be used by the Ender Dragon.
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minecraft:behavior.drop_item_for

Allows the mob to move near a target and drop an item.

Parameters

Name

Type

Default Value

Description

drop_item_chance

Decimal

[1.0]

The probability that the mob will drop an item.

entity_types

JSON Object

List of entity types this mob will drop items for.

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

goal_radius

Decimal

0.5

Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot

loot_table

String

Loot table to select items from.

max_dist

Decimal

0.0

Maximum distance in blocks this mob will look for entities to drop an item for.

offering_distance

Decimal

[1.0]

The distance in blocks the mob will try to be away from the entity when it drops the item.

on_drop_attempt

String

Event to run when this mob attempts to drop an item.

search_height

Integer

Height in blocks from the target the mob can be.

search_range

Integer

The distance in blocks from the target the mob can be.

speed_multiplier

Decimal

1.0

Movement speed multiplier of the mob when using this AI Goal

time_of_day_range

Range [a, b]

[0.0, 1.0]

The valid times of day that this goal can be used. For reference: noon is 0.0, sunset is 0.25, midnight is 0.5, and sunrise is 0.75, and back to noon for 1.0.

minecraft:behavior.eat_block

Allows the mob to eat a block (for example, sheep eating grass).

Parameters

Name	Type	Default Value	Description
on_eat	Trigger		Trigger to fire when the mob eats a block of grass

minecraft:behavior.enderman_leave_block

Allows the enderman to drop a block they are carrying. Can only be used by Endermen.
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minecraft:behavior.enderman_take_block

Allows the enderman to take a block and carry it around. Can only be used by Endermen.
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minecraft:behavior.find_mount

Allows the mob to look around for another mob to ride atop it.

Parameters

Name	Type	Default Value	Description
avoid_water	Boolean	false	If true, the mob will not go into water blocks when going towards a mount
mount_distance	Decimal	-1.0	This is the distance the mob needs to be, in blocks, from the desired mount to mount it. If the value is below 0, the mob will use its default attack distance
start_delay	Integer	0	Time the mob will wait before starting to move towards the mount
target_needed	Boolean	false	If true, the mob will only look for a mount if it has a target
within_radius	Decimal	0.0	Distance in blocks within which the mob will look for a mount

minecraft:behavior.find_underwater_treasure

Allows the mob to move towards the nearest underwater ruin or shipwreck.

Parameters

Name	Type	Default Value	Description
search_range	Integer	0	The range that the mob will search for a treasure chest within a ruin or shipwreck to move towards.
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
stop_distance	Decimal	2.0	The distance the mob will move before stopping.

minecraft:behavior.flee_sun

Allows the mob to run away from direct sunlight and seek shade.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.float

Allows the mob to stay afloat while swimming.
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minecraft:behavior.float_wander

Allows the mob to float around like the Ghast.

Parameters

Name	Type	Default Value	Description
float_duration	Range [a, b]	[0.0, 0.0]	Range of time in seconds the mob will float around before landing and choosing to do something else
must_reach	Boolean	false	If true, the point has to be reachable to be a valid target
random_reselect	Boolean	false	If true, the mob will randomly pick a new point while moving to the previously selected one
xz_dist	Integer	10	Distance in blocks on ground that the mob will look for a new spot to move to. Must be at least 1
y_dist	Integer	7	Distance in blocks that the mob will look up or down for a new spot to move to. Must be at least 1
y_offset	Decimal	0.0	Height in blocks to add to the selected target position

minecraft:behavior.follow_caravan

Allows the mob to follow mobs that are in a caravan.

Parameters

Name

Type

Default Value

Description

entity_count

Integer

Number of entities that can be in the caravan

entity_types

JSON Object

List of entity types that this mob can follow in a caravan

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

speed_multiplier

Decimal

1.0

Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.follow_mob

Allows the mob to follow other mobs.

Parameters

Name	Type	Default Value	Description
search_range	Integer	0	The distance in blocks it will look for a mob to follow
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
stop_distance	Decimal	2.0	The distance in blocks this mob stops from the mob it is following

minecraft:behavior.follow_owner

Allows the mob to follow the player that owns them.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
start_distance	Decimal	10.0	The distance in blocks that the owner can be away from this mob before it starts following it
stop_distance	Decimal	2.0	The distance in blocks this mob will stop from its owner while following it

minecraft:behavior.follow_parent

Allows the mob to follow their parent around.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.go_home

Allows the mob to move back to the position they were spawned.

Parameters

Name	Type	Default Value	Description
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
interval	Integer	120	A random value to determine when to randomly move somewhere. This has a 1/interval chance to choose this goal
on_home	String		Event to run when this mob gets home.
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.guardian_attack

Allows the guardian to use its laser beam attack. Can only be used by Guardians and Elder Guardians.
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minecraft:behavior.harvest_farm_block

Allows the villager to harvest nearby farms. Can only be used by Villagers.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.hurt_by_target

Allows the mob to target another mob that hurts them.

Parameters

Name

Type

Default Value

Description

alert_same_type

Boolean

false

If true, nearby mobs of the same type will be alerted about the damage

entity_types

JSON Object

List of entity types that this mob can target when hurt by them

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

hurt_owner

Boolean

false

If true, the mob will hurt its owner and other mobs with the same owner as itself

minecraft:behavior.lay_down

Allows mobs to lay down at times

Parameters

Name	Type	Default Value	Description
interval	Integer	120	A random value to determine at what intervals something can occur. This has a 1/interval chance to choose this goal
random_stop_interval	Integer	120	a random value in which the goal can use to pull out of the behavior. This is a 1/interval chance to play the sound

minecraft:behavior.lay_egg

Allows the mob to lay an egg block on a sand block if the mob is pregnant.

Parameters

Name	Type	Default Value	Description
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
on_lay	String		Event to run when this mob lays the egg.
search_count	Integer	10	The number of blocks each tick that the mob will check within it's search range and height for a valid block to move to. A value of 0 will have the mob check every block within range in one tick
search_height	Integer	1	Height in blocks the mob will look for sand block to move towards
search_range	Integer	0	The distance in blocks it will look for a sand block to move towards
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.leap_at_target

Allows monsters to jump at and attack their target. Can only be used by hostile mobs.

Parameters

Name	Type	Default Value	Description
must_be_on_ground	Boolean	true	If true, the mob will only jump at its target if its on the ground. Setting it to false will allow it to jump even if its already in the air
yd	Decimal	0.0	The height in blocks the mob jumps when leaping at its target

minecraft:behavior.look_at_entity

Allows the mob to look at nearby entities.

Parameters

Name	Type	Default Value	Description
angle_of_view_horizontal	Integer	360	The angle in degrees that the mob can see in the Y-axis (up-down)
angle_of_view_vertical	Integer	360	The angle in degrees that the mob can see in the X-axis (left-right)
filters	Minecraft Filter		Filter to determine the conditions for this mob to look at the entity
look_distance	Decimal	8.0	The distance in blocks from which the entity will look at
look_time	Range [a, b]	[2, 4]	Time range to look at the entity
probability	Decimal	0.02	The probability of looking at the target. A value of 1.00 is 100%

minecraft:behavior.look_at_player

Allows the mob to look at the player when the player is nearby.

Parameters

Name	Type	Default Value	Description
angle_of_view_horizontal	Integer	360	The angle in degrees that the mob can see in the Y-axis (up-down)
angle_of_view_vertical	Integer	360	The angle in degrees that the mob can see in the X-axis (left-right)
look_distance	Decimal	8.0	The distance in blocks from which the entity will look at
look_time	Range [a, b]	[2, 4]	Time range to look at the entity
probability	Decimal	0.02	The probability of looking at the target. A value of 1.00 is 100%

minecraft:behavior.look_at_target

Allows the mob to look at the entity they are targetting.

Parameters

Name	Type	Default Value	Description
angle_of_view_horizontal	Integer	360	The angle in degrees that the mob can see in the Y-axis (up-down)
angle_of_view_vertical	Integer	360	The angle in degrees that the mob can see in the X-axis (left-right)
look_distance	Decimal	8.0	The distance in blocks from which the entity will look at
look_time	Range [a, b]	[2, 4]	Time range to look at the entity
probability	Decimal	0.02	The probability of looking at the target. A value of 1.00 is 100%

minecraft:behavior.look_at_trading_player

Allows the mob to look at the player they are trading with.

Parameters

Name	Type	Default Value	Description
angle_of_view_horizontal	Integer	360	The angle in degrees that the mob can see in the Y-axis (up-down)
angle_of_view_vertical	Integer	360	The angle in degrees that the mob can see in the X-axis (left-right)
look_distance	Decimal	8.0	The distance in blocks from which the entity will look at
look_time	Range [a, b]	[2, 4]	Time range to look at the entity
probability	Decimal	0.02	The probability of looking at the target. A value of 1.00 is 100%

minecraft:behavior.make_love

Allows the villager to look for a mate to spawn other villagers with. Can only be used by Villagers.
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minecraft:behavior.melee_attack

Allows the mob to use close combat melee attacks.

Parameters

Name	Type	Default Value	Description
attack_once	Boolean	false	If true, this mob will attack only one time.
attack_types	String		Defines the entity types this mob will attack
melee_fov	Decimal	90.0	The allowable FOV the actor will use to determine if it can make a valid melee attack
random_stop_interval	Integer	0	Defines the probability the mob will stop fighting. A value of 0 disables randomly stopping, while a value of 1 defines a 50% chance
reach_multiplier	Decimal	2.0	Multiplier for how far outside its box the mob can reach its target (this can be used to simulate a mob with longer arms by making this bigger)
require_complete_path	Boolean	false	If true, this goal will only trigger if the mob can reach its target.
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
track_target	Boolean	false	If true, this mob will chase after the target as long as it's a valid target

minecraft:behavior.mount_pathing

Allows the mob to move around on its own while mounted seeking a target to attack.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
target_dist	Decimal	0.0	The distance at which this mob wants to be away from its target
track_target	Boolean	false	If true, this mob will chase after the target as long as it's a valid target

minecraft:behavior.move_indoors

Can only be used by Villagers. Allows them to seek shelter indoors.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.move_through_village

Can only be used by Villagers. Allows the villagers to create paths around the village.

Parameters

Name	Type	Default Value	Description
only_at_night	Boolean	false	If true, the mob will only move through the village during night time
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.move_to_land

Allows the mob to move back onto land when in water.

Parameters

Name	Type	Default Value	Description
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
search_count	Integer	10	The number of blocks each tick that the mob will check within it's search range and height for a valid block to move to. A value of 0 will have the mob check every block within range in one tick
search_height	Integer	1	Height in blocks the mob will look for land to move towards
search_range	Integer	0	The distance in blocks it will look for land to move towards
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.move_to_water

Allows the mob to move back into water when on land.

Parameters

Name	Type	Default Value	Description
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
search_count	Integer	10	The number of blocks each tick that the mob will check within it's search range and height for a valid block to move to. A value of 0 will have the mob check every block within range in one tick
search_height	Integer	1	Height in blocks the mob will look for water to move towards
search_range	Integer	0	The distance in blocks it will look for water to move towards
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.move_towards_restriction

Allows Guardians, Iron Golems and Villagers to move within their pre-defined area that the mob should be restricted to. Other mobs don't have a restriction defined.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.move_towards_target

Allows mob to move towards its current target.

Parameters

Name	Type	Default Value	Description
within_radius	Decimal	0.0	Defines the radius in blocks that the mob tries to be from the target. A value of 0 means it tries to occupy the same block as the target

minecraft:behavior.nearest_attackable_target

Allows the mob to check for and pursue the nearest valid target.

Parameters

Name

Type

Default Value

Description

attack_interval

Integer

Time in seconds between attacks

entity_types

JSON Object

List of entity types that this mob considers valid targets

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

must_reach

Boolean

false

If true, only entities that this mob can path to can be selected as targets

must_see

Boolean

false

If true, only entities in this mob's viewing range can be selected as targets

must_see_forget_duration

Decimal

3.0

Determines the amount of time in seconds that this mob will look for a target before forgetting about it and looking for a new one when the target isn't visible any more

persist_time

Decimal

0.0f

Time in seconds for a valid target to stay targeted when it becomes and invalid target.

reselect_targets

Boolean

false

If true, the target will change to the current closest entity whenever a different entity is closer

scan_interval

Integer

How many ticks to wait between scanning for a target.

target_search_height

Decimal

-1.0f

Height in blocks to search for a target mob. -1.0f means the height does not matter.

within_radius

Decimal

0.0

Distance in blocks that the target can be within to launch an attack

minecraft:behavior.ocelot_sit_on_block

Allows to mob to be able to sit in place like the ocelot.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.ocelotattack

Can only be used by the Ocelot. Allows it to perform the sneak and pounce attack.

Parameters

Name	Type	Default Value	Description
sneak_speed_multiplier	Decimal	1.0	Multiplier for the sneaking speed. 1.0 means the ocelot will move at the speed it normally sneaks
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed of this mob while using this attack
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed while using this attack

minecraft:behavior.offer_flower

Allows the mob to offer the player a flower like the Iron Golem does.
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minecraft:behavior.open_door

Allows the mob to open doors. Requires the mob to be able to path through doors, otherwise the mob won't even want to try opening them.

Parameters

Name	Type	Default Value	Description
close_door_after	Boolean	true	If true, the mob will close the door after opening it and going through it

minecraft:behavior.owner_hurt_by_target

Allows the mob to target another mob that hurts their owner.

Parameters

Name

Type

Default Value

Description

entity_types

JSON Object

List of entity types that this mob can target if they hurt their owner

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

minecraft:behavior.owner_hurt_target

Allows the mob to target a mob that is hurt by their owner.

Parameters

Name

Type

Default Value

Description

entity_types

JSON Object

List of entity types that this entity can target if the potential target is hurt by this mob's owner

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

minecraft:behavior.panic

Allows the mob to enter the panic state, which makes it run around and away from the damage source that made it enter this state.

Parameters

Name	Type	Default Value	Description
force	Boolean	false	If true, this mob will not stop panicking until it can't move anymore or the goal is removed from it
ignore_mob_damage	Boolean	false	If true, the mob will not panic in response to damage from other mobs (only fire/lava etc)
prefer_water	Boolean	false	If true, the mob will prefer water over land
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.peek

Allows the mob to peek out. This is what the shulker uses to look out of its shell.
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minecraft:behavior.pet_sleep_with_owner

Allows the pet mob to move onto a bed with it's owner while sleeping.

Parameters

Name	Type	Default Value	Description
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
search_height	Integer	1	Height in blocks from the owner the pet can be to sleep with owner.
search_range	Integer	0	The distance in blocks from the owner the pet can be to sleep with owner.
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.pickup_items

Allows the mob to pick up items on the ground.

Parameters

Name	Type	Default Value	Description
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
max_dist	Decimal	0.0	Maximum distance this mob will look for items to pick up
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
track_target	Boolean	false	If true, this mob will chase after the target as long as it's a valid target

minecraft:behavior.play

Allows the mob to play with other baby villagers. This can only be used by Villagers.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.player_ride_tamed

Allows the mob to be ridden by the player after being tamed.
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minecraft:behavior.raid_garden

Allows the mob to eat crops out of farms until they are full.

Parameters

Name	Type	Default Value	Description
blocks	List		Blocks that the mob is looking for to eat
eat_delay	Integer	2	Time in seconds between each time it eats
full_delay	Integer	100	Amount of time in seconds before this mob wants to eat again
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
max_to_eat	Integer	6	Maximum number of things this entity wants to eat
search_range	Integer	0	Distance in blocks the mob will look for crops to eat
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.random_breach

Allows the mob to randomly break surface of the water.

Parameters

Name	Type	Default Value	Description
cooldown_time	Decimal	0.0	Time in seconds the mob has to wait before using the goal again
interval	Integer	120	A random value to determine when to randomly move somewhere. This has a 1/interval chance to choose this goal
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
xz_dist	Integer	10	Distance in blocks on ground that the mob will look for a new spot to move to. Must be at least 1
y_dist	Integer	7	Distance in blocks that the mob will look up or down for a new spot to move to. Must be at least 1

minecraft:behavior.random_fly

Allows a mob to randomly fly around.

Parameters

Name	Type	Default Value	Description
can_land_on_trees	Boolean	true	If true, the mob can stop flying and land on a tree instead of the ground
xz_dist	Integer	10	Distance in blocks on ground that the mob will look for a new spot to move to. Must be at least 1
y_dist	Integer	7	Distance in blocks that the mob will look up or down for a new spot to move to. Must be at least 1

minecraft:behavior.random_look_around

Allows the mob to randomly look around.

Parameters

Name	Type	Default Value	Description
look_time	Range [a, b]	[2, 4]	The range of time in seconds the mob will stay looking in a random direction before looking elsewhere

minecraft:behavior.random_sitting

Allows the mob to randomly sit for a duration.

Parameters

Name	Type	Default Value	Description
cooldown	Decimal	100	The cooldown time in seconds before the mob may sit again
min_sit_time	Decimal	10	The minimum amount of time in seconds before the mob can stand back up
start_chance	Decimal	0.1	This is the chance that the mob will start sitting, from 0 to 1
stop_chance	Decimal	0.3	This is the chance that the mob will stop sitting, from 0 to 1

minecraft:behavior.random_stroll

Allows a mob to randomly stroll around.

Parameters

Name	Type	Default Value	Description
interval	Integer	120	A random value to determine when to randomly move somewhere. This has a 1/interval chance to choose this goal
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
xz_dist	Integer	10	Distance in blocks on ground that the mob will look for a new spot to move to. Must be at least 1
y_dist	Integer	7	Distance in blocks that the mob will look up or down for a new spot to move to. Must be at least 1

minecraft:behavior.random_swim

Allows an entity to randomly move through water

Parameters

Name	Type	Default Value	Description
interval	Integer	120	A random value to determine when to randomly move somewhere. This has a 1/interval chance to choose this goal
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
xz_dist	Integer	10	Distance in blocks on ground that the mob will look for a new spot to move to. Must be at least 1
y_dist	Integer	7	Distance in blocks that the mob will look up or down for a new spot to move to. Must be at least 1

minecraft:behavior.ranged_attack

Allows the mob to use ranged attacks like shooting arrows.

Parameters

Name	Type	Default Value	Description
attack_interval_max	Integer	0	Maximum amount of time in seconds the entity will wait after an attack before launching another
attack_interval_min	Integer	0	Minimum amount of time in seconds the entity will wait after an attack before launching another
attack_radius	Decimal	0.0	Maxmimum distance the target can be for this mob to fire. If the target is further away, this mob will move first before firing
burst_interval	Decimal	0.0	Amount of time in seconds between each individual shot when firing multiple shots per attack
burst_shots	Integer	1	Number of shots fired every time the mob uses a charged attack
charge_charged_trigger	Decimal	0.0	The minimum amount of time in ticks the mob has to charge before firing a charged attack
charge_shoot_trigger	Decimal	0.0	The minimum amount of time in ticks for the mob to start charging a charged shot. Must be greater than 0 to enable burst shots
ranged_fov	Decimal	90.0	The allowable FOV the actor will use to determine if it can make a valid ranged attack
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.receive_love

Allows the villager to stop so another villager can breed with it. Can only be used by a Villager.
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minecraft:behavior.restrict_open_door

Allows the mob to stay indoors during night time.
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minecraft:behavior.restrict_sun

Allows the mob to automatically start avoiding the sun when its a clear day out.
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minecraft:behavior.roll

This allows the mob to roll forward.

Parameters

Name	Type	Default Value	Description
probability	Decimal	[1.0]	The probability that the mob will use the goal.

minecraft:behavior.run_around_like_crazy

Allows the mob to run around aimlessly.

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.send_event

Allows the mob to send an event to another mob.

Parameters

Name

Type

Default Value

Description

cast_duration

Decimal

Total delay of the steps

Time in seconds for the entire event sending process

sequence

List

List of events to send

Name	Type	Default Value	Description
base_delay	Decimal	0.0	Amount of time in seconds before starting this step
event	String		The event to send to the entity
sound_event	String		The sound event to play when this step happens

minecraft:behavior.share_items

Allows the mob to give items it has to others.

Parameters

Name

Type

Default Value

Description

entity_types

JSON Object

List of entities this mob will share items with

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

goal_radius

Decimal

0.5

Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot

max_dist

Decimal

0.0

Maximum distance in blocks this mob will look for entities to share items with

speed_multiplier

Decimal

1.0

Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.silverfish_merge_with_stone

Allows the mob to go into stone blocks like Silverfish do. Currently it can only be used by Silverfish.
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minecraft:behavior.silverfish_wake_up_friends

Allows the mob to alert mobs in nearby blocks to come out. Currently it can only be used by Silverfish.
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minecraft:behavior.skeleton_horse_trap

Allows Equine mobs to be Horse Traps and be triggered like them, spawning a lightning bolt and a bunch of horses when a player is nearby. Can only be used by Horses, Mules, Donkeys and Skeleton Horses.

Parameters

Name	Type	Default Value	Description
duration	Decimal	1.0	Amount of time in seconds the trap exists. After this amount of time is elapsed, the trap is removed from the world if it hasn't been activated
within_radius	Decimal	0.0	Distance in blocks that the player has to be within to trigger the horse trap

minecraft:behavior.slime_attack

Can only be used by Slimes and Magma Cubes. Allows the mob to use a melee attack like the slime's.
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minecraft:behavior.slime_float

Can only be used by Slimes and Magma Cubes. Controls their ability to float in water / lava.
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minecraft:behavior.slime_keep_on_jumping

Can only be used by Slimes and Magma Cubes. Allows the mob to continuously jump around like a slime.
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minecraft:behavior.slime_random_direction

Can only be used by Slimes and Magma Cubes. Allows the mob to move in random directions like a slime.
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minecraft:behavior.snacking

Allows the mob to take a load off and snack on food that it found nearby.

Parameters

Name	Type	Default Value	Description
items	List		Items that we are interested in snacking on
snacking_cooldown	Decimal	7.5	The cooldown time in seconds before the mob is able to snack again
snacking_cooldown_min	Decimal	0.5f	The minimum time in seconds before the mob is able to snack again
snacking_stop_chance	Decimal	0.0017	This is the chance that the mob will stop snacking, from 0 to 1

minecraft:behavior.sneeze

Allows the mob to stop and sneeze possibly startling nearby mobs and dropping an item.

Parameters

Name

Type

Default Value

Description

cooldown_time

Decimal

0.0

Time in seconds the mob has to wait before using the goal again

drop_item_chance

Decimal

1.0

The probability that the mob will drop an item when it sneezes.

entity_types

JSON Object

List of entity types this mob will startle (cause to jump) when it sneezes.

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

loot_table

String

Loot table to select dropped items from.

prepare_sound

String

Sound to play when the sneeze is about to happen.

prepare_time

Decimal

1.0

The time in seconds that the mob takes to prepare to sneeze (while the prepare_sound is playing).

probability

Decimal

0.02

The probability of sneezing. A value of 1.00 is 100%

sound

String

Sound to play when the sneeze occurs.

within_radius

Decimal

0.0

Distance in blocks that mobs will be startled.

minecraft:behavior.squid_dive

Allows the squid to dive down in water. Can only be used by the Squid.
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minecraft:behavior.squid_flee

Allows the squid to swim away. Can only be used by the Squid.
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minecraft:behavior.squid_idle

Allows the squid to swim in place idly. Can only be used by the Squid.
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minecraft:behavior.squid_move_away_from_ground

Allows the squid to move away from ground blocks and back to water. Can only be used by the Squid.
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minecraft:behavior.squid_out_of_water

Allows the squid to stick to the ground when outside water. Can only be used by the Squid.
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minecraft:behavior.stay_while_sitting

Allows the mob to stay put while it is in a sitting state instead of doing something else.
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minecraft:behavior.stomp_attack

Allows the mob to use the polar bear's melee attack.

Parameters

Name	Type	Default Value	Description
attack_once	Boolean	false	If true, this mob will attack only one time.
attack_types	String		Defines the entity types this mob will attack
random_stop_interval	Integer	0	Defines the probability the mob will stop fighting. A value of 0 disables randomly stopping, while a value of 1 defines a 50% chance
reach_multiplier	Decimal	2.0	Multiplier for how far outside its box the mob can reach its target (this can be used to simulate a mob with longer arms by making this bigger)
require_complete_path	Boolean	false	If true, this goal will only trigger if the mob can reach its target.
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
track_target	Boolean	false	If true, this mob will chase after the target as long as it's a valid target

minecraft:behavior.stomp_turtle_egg

Allows this mob to stomp turtle eggs

Parameters

Name	Type	Default Value	Description
goal_radius	Decimal	0.5	Distance in blocks within the mob considers it has reached the goal. This is the "wiggle room" to stop the AI from bouncing back and forth trying to reach a specific spot
interval	Integer	120	A random value to determine when to randomly move somewhere. This has a 1/interval chance to choose this goal
search_count	Integer	10	The number of blocks each tick that the mob will check within it's search range and height for a valid block to move to. A value of 0 will have the mob check every block within range in one tick
search_height	Integer	1	Height in blocks the mob will look for turtle eggs to move towards
search_range	Integer	0	The distance in blocks it will look for turtle eggs to move towards
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.summon_entity

Allows the mob to attack the player by summoning other entities.

Parameters

Name

Type

Default Value

Description

summon_choices

List

List of spells for the mob to use to summon entities. Each spell has the following parameters:

Name

Type

Default Value

Description

cast_duration

Decimal

Total delay of the steps

Time in seconds the spell casting will take

cooldown_time

Decimal

0.0

Time in seconds the mob has to wait before using the spell again

do_casting

Boolean

true

If true, the mob will do the casting animations and render spell particles

filters

Minecraft Filter

max_activation_range

Decimal

-1.0

Upper bound of the activation distance in blocks for this spell

min_activation_range

Decimal

1.0

Lower bound of the activation distance in blocks for this spell

particle_color

Integer

The color of the particles for this spell

sequence

List

List of steps for the spell. Each step has the following parameters:

Name	Type	Default Value	Description
base_delay	Decimal	0.0	Amount of time in seconds to wait before this step starts
delay_per_summon	Decimal	0.0	Amount of time in seconds before each entity is summoned in this step
entity_lifespan	Decimal	-1.0	Amount of time in seconds that the spawned entity will be alive for. A value of -1.0 means it will remain alive for as long as it can
entity_type	String		The entity type of the entities we will spawn in this step
num_entities_spawned	Integer	1	Number of entities that will be spawned in this step
shape	String	line	The base shape of this step. Valid values are circle and line
size	Decimal	1.0	The base size of the entity
sound_event	String		The sound event to play for this step
summon_cap	Integer	0	Maximum number of summoned entities at any given time
summon_cap_radius	Decimal	0.0
target	String	self	The target of the spell. This is where the spell will start (line will start here, circle will be centered here)

start_sound_event

String

The sound event to play when using this spell

weight

Decimal

0.0

The weight of this spell. Controls how likely the mob is to choose this spell when casting one

minecraft:behavior.swell

Allows the creeper to swell up when a player is nearby. It can only be used by Creepers.

Parameters

Name	Type	Default Value	Description
start_distance	Decimal	10.0	This mob starts swelling when a target is at least this many blocks away
stop_distance	Decimal	2.0	This mob stops swelling when a target has moved away at least this many blocks

minecraft:behavior.swim_wander

Has the fish swim around when they can't pathfind

Parameters

Name	Type	Default Value	Description
speed_multiplier	Decimal	10	speed of the entity

minecraft:behavior.swoop_attack

Allows the mob to move to attack a target. The goal ends if it has a horizontal collision or gets hit. Built to be used with flying mobs.

Parameters

Name	Type	Default Value	Description
delay_range	Range [a, b]	[10.0, 20.0]	Range of time in seconds between uses of this goal.
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal

minecraft:behavior.take_flower

Can only be used by Villagers. Allows the mob to accept flowers from Iron Golems.
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minecraft:behavior.tempt

Allows the mob to be tempted by food they like.

Parameters

Name	Type	Default Value	Description
can_get_scared	Boolean	false	If true, the mob can stop being tempted if the player moves too fast while close to this mob
items	List		List of items this mob is tempted by
speed_multiplier	Decimal	1.0	Movement speed multiplier of the mob when using this AI Goal
within_radius	Decimal	0.0	Distance in blocks this mob can get tempted by a player holding an item they like

minecraft:behavior.trade_with_player

Allows the player to trade with this mob.
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minecraft:behavior.vex_copy_owner_target

Allows the mob to target the same entity its owner is targeting.

Parameters

Name

Type

Default Value

Description

entity_types

JSON Object

List of entities this mob can copy the owner from

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

minecraft:behavior.vex_random_move

Allows the mob to move around randomly like the Vex.
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minecraft:behavior.wither_random_attack_pos_goal

Allows the wither to launch random attacks. Can only be used by the Wither Boss.
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minecraft:behavior.wither_target_highest_damage

Allows the wither to focus its attacks on whichever mob has dealt the most damage to it.

Parameters

Name

Type

Default Value

Description

entity_types

JSON Object

List of entity types the wither takes into account to find who dealt the most damage to it

Name	Type	Default Value	Description
filters	Minecraft Filter		Conditions that make this entry in the list valid
max_dist	Decimal	16	Maximum distance this mob can be away to be a valid choice
must_see	Boolean	false	If true, the mob has to be visible to be a valid choice
sprint_speed_multiplier	Decimal	1.0	Multiplier for the running speed. A value of 1.0 means the speed is unchanged
walk_speed_multiplier	Decimal	1.0	Multiplier for the walking speed. A value of 1.0 means the speed is unchanged

Filters

Filters allow data objects to specify test critera which allows their use.

For example, a model that includes a filter will only be used when the filter criteria is true.

A typical filter consists of four paramters:

name: the name of the test to apply.

domain: the domain the test should be performed in. An armor slot, for example. This parameter is only used by a few tests.

operator: the comparison to apply with the value, such as 'equal' or 'greater'.

value: the value being compared with the test.

A typical filter looks like the following:

{ "test" : "moon_intensity", "subject" : "self", "operator" : "greater", "value" : "0.5" }

Which results in the calling entity (self) calculating the moon_intensity at its location and returning true if the result is greater than 0.5.

Tests can be combined into groups using the collections 'all_of' and 'any_of'.

All tests in an 'all_of' group must pass in order for the group to pass.

One or more tests in an 'any_of' group must pass in order for the group to pass.

clock_time

Compares the current time with a float value in the range (0.0, 1.0). 0.0= Noon 0.25= Sunset 0.5= Midnight 0.75= Sunrise

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Decimal

(Required) A floating point value.

Examples

Full..

{ "test": "clock_time", "subject": "self", "operator": "equals", "value": "0.00" }

Short (using Defaults)..

{ "test": "clock_time", "value": "0.00" }

has_ability

Returns true when the subject entity has the named ability.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The Ability type to test

Options	Description
flySpeed
flying
instabuild
invulnerable
lightning
mayfly
mute
noclip
walkSpeed
worldbuilder

Examples

Full..

{ "test": "has_ability", "subject": "self", "operator": "equals", "value": "instabuild" }

Short (using Defaults)..

{ "test": "has_ability", "value": "instabuild" }

has_biome_tag

Tests whether the biome the subject is in has the specified tag.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The tag to look for

Examples

Full..

{ "test": "has_biome_tag", "subject": "self", "operator": "equals", "value": " " }

Short (using Defaults)..

{ "test": "has_biome_tag", "value": " " }

has_component

Returns true when the subject entity contains the named component.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The component name to look for

Examples

Full..

{ "test": "has_component", "subject": "self", "operator": "equals", "value": "minecraft:explode" }

Short (using Defaults)..

{ "test": "has_component", "value": "minecraft:explode" }

has_damage

Returns true when the subject entity receives the named damage type.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The Damage type to test

Options	Description
anvil
attack
block_explosion
contact
drowning
entity_explosion
fall
falling_block
fatal	Any damage which kills the subject
fire
fire_tick
fly_into_wall
lava
magic
none
override
piston
projectile
starve
suffocation
suicide
thorns
void
wither

Examples

Full..

{ "test": "has_damage", "subject": "self", "operator": "equals", "value": "fatal" }

Short (using Defaults)..

{ "test": "has_damage", "value": "fatal" }

has_equipment

Tests for the presence of a named item in the designated slot of the subject entity.

Parameters

Name

Type

Default

Description

domain

String

any

(Optional) The equipment location to test

Options	Description
any
armor
feet
hand
head
leg
torso

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The item name to look for

Examples

Full..

{ "test": "has_equipment", "subject": "self", "domain": "any", "operator": "equals", "value": "dirt" }

Short (using Defaults)..

{ "test": "has_equipment", "value": "dirt" }

has_tag

Returns true if the subject entity has the tag provided.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Optional) A string value.

Examples

Full..

{ "test": "has_tag", "subject": "self", "operator": "equals", "value": "" }

Short (using Defaults)..

{ "test": "has_tag" }

in_caravan

Returns true if the subject entity is in a caravan.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "in_caravan", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "in_caravan" }

in_clouds

Returns true when the subject entity is in the clouds.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "in_clouds", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "in_clouds" }

in_lava

Returns true when the subject entity is in lava.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "in_lava", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "in_lava" }

in_water

Returns true when the subject entity is in water.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "in_water", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "in_water" }

in_water_or_rain

Returns true when the subject entity is in water or rain.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "in_water_or_rain", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "in_water_or_rain" }

is_altitude

Tests the current altitude against a provided value. 0= bedrock elevation.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Integer

(Required) The altitude value to compare with

Examples

Full..

{ "test": "is_altitude", "subject": "self", "operator": "equals", "value": "0" }

Short (using Defaults)..

{ "test": "is_altitude", "value": "0" }

is_biome

Tests whether the Subject is currently in the named biome.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The Biome type to test

Options	Description
beach
desert
extreme_hills
flat
forest
ice
jungle
mesa
mushroom_island
ocean
plain
river
savanna
stone_beach
swamp
taiga
the_end
the_nether

Examples

Full..

{ "test": "is_biome", "subject": "self", "operator": "equals", "value": "beach" }

Short (using Defaults)..

{ "test": "is_biome", "value": "beach" }

is_brightness

Tests the current brightness against a provided value in the range (0.0f, 1.0f).

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Decimal

(Required) The brightness value to compare with.

Examples

Full..

{ "test": "is_brightness", "subject": "self", "operator": "equals", "value": "0.50" }

Short (using Defaults)..

{ "test": "is_brightness", "value": "0.50" }

is_climbing

Returns true if the subject entity is climbing.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_climbing", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_climbing" }

is_color

Returns true if the subject entity is the named color.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The Palette Color to test

Options	Description
black
blue
brown
cyan
gray
green
light_blue
light_green
magenta
orange
pink
purple
red
silver
white
yellow

Examples

Full..

{ "test": "is_color", "subject": "self", "operator": "equals", "value": "white" }

Short (using Defaults)..

{ "test": "is_color", "value": "white" }

is_daytime

Returns true during the daylight hours.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_daytime", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_daytime" }

is_difficulty

Tests the current difficulty level of the game.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The game's difficulty level to test

Options	Description
easy
hard
normal
peaceful

Examples

Full..

{ "test": "is_difficulty", "subject": "self", "operator": "equals", "value": "normal" }

Short (using Defaults)..

{ "test": "is_difficulty", "value": "normal" }

is_family

Returns true when the subject entity is a member of the named family.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The Family name to look for

Examples

Full..

{ "test": "is_family", "subject": "self", "operator": "equals", "value": "player" }

Short (using Defaults)..

{ "test": "is_family", "value": "player" }

is_game_rule

Tests whether a named game rule is active.

Parameters

Name

Type

Default

Description

domain

String

(Required) The Game Rule to test.

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_game_rule", "subject": "self", "domain": "domobspawning", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_game_rule", "domain": "domobspawning" }

is_humid

Tests whether the Subject is in an area with humidity

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_humid", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_humid" }

is_immobile

Returns true if the subject entity is immobile. An entity is immobile if it lacks AI goals, has just changed dimensions or if it is a mob and has no health.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_immobile", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_immobile" }

is_moving

Returns true if the subject entity is moving.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_moving", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_moving" }

is_owner

Returns true if the subject entity is the owner of the calling entity.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_owner", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_owner" }

is_riding

Returns true if the subject entity is riding on another entity.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_riding", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_riding" }

is_sneaking

Returns true if the subject entity is sneaking.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_sneaking", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_sneaking" }

is_snow_covered

Tests whether the Subject is in an area with snow cover

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_snow_covered", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_snow_covered" }

is_target

Returns true if the subject entity is the target of the calling entity.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_target", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_target" }

is_temperature_type

Tests whether the current temperature is a given type.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

String

(Required) The Biome temperature catagory to test

Options	Description
cold
mild
ocean
warm

Examples

Full..

{ "test": "is_temperature_type", "subject": "self", "operator": "equals", "value": "cold" }

Short (using Defaults)..

{ "test": "is_temperature_type", "value": "cold" }

is_temperature_value

Tests the current temperature against a provided value in the range (0.0, 1.0) where 0.0f is the coldest temp and 1.0f is the hottest.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Decimal

(Required) The Biome temperature value to compare with.

Examples

Full..

{ "test": "is_temperature_value", "subject": "self", "operator": "equals", "value": "0.50" }

Short (using Defaults)..

{ "test": "is_temperature_value", "value": "0.50" }

is_underground

Returns true when the subject entity is underground. An entity is considered underground if there are non-solid blocks above it.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_underground", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_underground" }

is_underwater

Returns true when the subject entity is under water. An entity is considered underwater if it is completely submerged in water blocks.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "is_underwater", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "is_underwater" }

is_variant

Returns true if the subject entity is the variant number provided.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Integer

(Required) An integer value.

Examples

Full..

{ "test": "is_variant", "subject": "self", "operator": "equals", "value": "0" }

Short (using Defaults)..

{ "test": "is_variant", "value": "0" }

moon_intensity

Compares the current moon intensity with a float value in the range (0.0, 1.0)

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Decimal

(Required) A floating point value.

Examples

Full..

{ "test": "moon_intensity", "subject": "self", "operator": "equals", "value": "0.00" }

Short (using Defaults)..

{ "test": "moon_intensity", "value": "0.00" }

moon_phase

Compares the current moon phase with an integer value in the range (0, 7).

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Integer

(Required) An integer value.

Examples

Full..

{ "test": "moon_phase", "subject": "self", "operator": "equals", "value": "0" }

Short (using Defaults)..

{ "test": "moon_phase", "value": "0" }

on_ground

Returns true when the subject entity is on ground.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "on_ground", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "on_ground" }

on_ladder

Returns true when the subject entity is on a ladder.

Parameters

Name

Type

Default

Description

operator

String

equals

(Optional) The comparison to apply with 'value'.

Options	Description
!=	Test for inequality.
<	Test for less-than the value.
<=	Test for less-than or equal to the value.
<>	Test for inequality.
=	Test for equality.
==	Test for equality.
>	Test for greater-than the value.
>=	Test for greater-than or equal to the value.
equals	Test for equality.
not	Test for inequality.

subject

String

self

(Optional) The subject of this filter test.

Options	Description
other	The other member of an interaction, not the caller.
parent	The caller's current parent.
player	The player involved with the interaction.
self	The entity or object calling the test
target	The caller's current target.

value

Boolean

true

(Optional) true or false.

Examples

Full..

{ "test": "on_ladder", "subject": "self", "operator": "equals", "value": "true" }

Short (using Defaults)..

{ "test": "on_ladder" }

Example:

This filter group will pass only when the moon_intensity is greater than 0.5 AND the caller's target entity is standing in water.

"all_of" : [

:   { "test" : "moon_intensity", "subject" : "self", "operator" : "greater", "value" : "0.5" }, 

:   { "test" : "in_water", "subject" : "target", "operator" : "equal", "value" : "true" } 

: ]

Entities

Identifier	Full ID	Short ID
agent	312	56
area_effect_cloud	95	95
armor_stand	317	61
arrow	12582992	80
balloon	107	107
bat	33043	19
blaze	2859	43
boat	90	90
cat	21323	75
cave_spider	265000	40
chalkboard	78	78
chest_minecart	524386	98
chicken	4874	10
cod	9072	112
command_block_minecart	524388	100
cow	4875	11
creeper	2849	33
dolphin	8991	31
donkey	2118424	24
dragon_fireball	4194383	79
drowned	199534	110
egg	4194386	82
elder_guardian	2866	50
ender_crystal	71	71
ender_dragon	2869	53
ender_pearl	4194391	87
enderman	2854	38
endermite	265015	55
evocation_fang	4194407	103
evocation_illager	2920	104
eye_of_ender_signal	70	70
falling_block	66	66
fireball	4194389	85
fireworks_rocket	72	72
fishing_hook	77	77
ghast	2857	41
guardian	2865	49
hopper_minecart	524384	96
horse	2118423	23
husk	199471	47
ice_bomb	4194410	106
iron_golem	788	20
item	64	64
leash_knot	88	88
lightning_bolt	93	93
lingering_potion	4194405	101
llama	4893	29
llama_spit	4194406	102
magma_cube	2858	42
minecart	524372	84
mooshroom	4880	16
moving_block	67	67
mule	2118425	25
npc	307	51
ocelot	21270	22
painting	83	83
panda	4977	113
parrot	21278	30
phantom	68410	58
pig	4876	12
pillager	2930	114
player	319	63
polar_bear	4892	28
pufferfish	9068	108
rabbit	4882	18
salmon	9069	109
sheep	4877	13
shulker	2870	54
shulker_bullet	4194380	76
silverfish	264999	39
skeleton	1116962	34
skeleton_horse	2186010	26
slime	2853	37
small_fireball	4194398	94
snow_golem	789	21
snowball	4194385	81
spider	264995	35
splash_potion	4194390	86
squid	8977	17
stray	1116974	46
thrown_trident	12582985	73
tnt	65	65
tnt_minecart	524385	97
tripod_camera	318	62
tropicalfish	9071	111
turtle	4938	74
vex	2921	105
villager	783	15
vindicator	2873	57
witch	2861	45
wither	68404	52
wither_skeleton	1116976	48
wither_skull	4194393	89
wither_skull_dangerous	4194395	91
wolf	21262	14
xp_bottle	4194372	68
xp_orb	69	69
zombie	199456	32
zombie_horse	2186011	27
zombie_pigman	68388	36
zombie_villager	199468	44

Blocks

Name
minecraft:acacia_button
minecraft:acacia_door
minecraft:acacia_fence_gate
minecraft:acacia_pressure_plate
minecraft:acacia_stairs
minecraft:acacia_standing_sign
minecraft:acacia_trapdoor
minecraft:acacia_wall_sign
minecraft:activator_rail
minecraft:air
minecraft:andesite_stairs
minecraft:anvil
minecraft:bamboo
minecraft:bamboo_sapling
minecraft:barrel
minecraft:barrier
minecraft:beacon
minecraft:bed
minecraft:bedrock
minecraft:beetroot
minecraft:bell
minecraft:birch_button
minecraft:birch_door
minecraft:birch_fence_gate
minecraft:birch_pressure_plate
minecraft:birch_stairs
minecraft:birch_standing_sign
minecraft:birch_trapdoor
minecraft:birch_wall_sign
minecraft:black_glazed_terracotta
minecraft:blast_furnace
minecraft:blue_glazed_terracotta
minecraft:blue_ice
minecraft:bone_block
minecraft:bookshelf
minecraft:brewing_stand
minecraft:brick_block
minecraft:brick_stairs
minecraft:brown_glazed_terracotta
minecraft:brown_mushroom
minecraft:brown_mushroom_block
minecraft:bubble_column
minecraft:cactus
minecraft:cake
minecraft:carpet
minecraft:carrots
minecraft:cartography_table
minecraft:carved_pumpkin
minecraft:cauldron
minecraft:chain_command_block
minecraft:chemical_heat
minecraft:chemistry_table
minecraft:chest
minecraft:chorus_flower
minecraft:chorus_plant
minecraft:clay
minecraft:coal_block
minecraft:coal_ore
minecraft:cobblestone
minecraft:cobblestone_wall
minecraft:cocoa
minecraft:colored_torch_bp
minecraft:colored_torch_rg
minecraft:command_block
minecraft:concrete
minecraft:concretePowder
minecraft:conduit
minecraft:coral
minecraft:coral_block
minecraft:coral_fan
minecraft:coral_fan_dead
minecraft:coral_fan_hang
minecraft:coral_fan_hang2
minecraft:coral_fan_hang3
minecraft:crafting_table
minecraft:cyan_glazed_terracotta
minecraft:dark_oak_button
minecraft:dark_oak_door
minecraft:dark_oak_fence_gate
minecraft:dark_oak_pressure_plate
minecraft:dark_oak_stairs
minecraft:dark_oak_trapdoor
minecraft:dark_prismarine_stairs
minecraft:darkoak_standing_sign
minecraft:darkoak_wall_sign
minecraft:daylight_detector
minecraft:daylight_detector_inverted
minecraft:deadbush
minecraft:detector_rail
minecraft:diamond_block
minecraft:diamond_ore
minecraft:diorite_stairs
minecraft:dirt
minecraft:dispenser
minecraft:double_plant
minecraft:double_stone_slab
minecraft:double_stone_slab2
minecraft:double_stone_slab3
minecraft:double_stone_slab4
minecraft:double_wooden_slab
minecraft:dragon_egg
minecraft:dried_kelp_block
minecraft:dropper
minecraft:element_0
minecraft:element_1
minecraft:element_10
minecraft:element_100
minecraft:element_101
minecraft:element_102
minecraft:element_103
minecraft:element_104
minecraft:element_105
minecraft:element_106
minecraft:element_107
minecraft:element_108
minecraft:element_109
minecraft:element_11
minecraft:element_110
minecraft:element_111
minecraft:element_112
minecraft:element_113
minecraft:element_114
minecraft:element_115
minecraft:element_116
minecraft:element_117
minecraft:element_118
minecraft:element_12
minecraft:element_13
minecraft:element_14
minecraft:element_15
minecraft:element_16
minecraft:element_17
minecraft:element_18
minecraft:element_19
minecraft:element_2
minecraft:element_20
minecraft:element_21
minecraft:element_22
minecraft:element_23
minecraft:element_24
minecraft:element_25
minecraft:element_26
minecraft:element_27
minecraft:element_28
minecraft:element_29
minecraft:element_3
minecraft:element_30
minecraft:element_31
minecraft:element_32
minecraft:element_33
minecraft:element_34
minecraft:element_35
minecraft:element_36
minecraft:element_37
minecraft:element_38
minecraft:element_39
minecraft:element_4
minecraft:element_40
minecraft:element_41
minecraft:element_42
minecraft:element_43
minecraft:element_44
minecraft:element_45
minecraft:element_46
minecraft:element_47
minecraft:element_48
minecraft:element_49
minecraft:element_5
minecraft:element_50
minecraft:element_51
minecraft:element_52
minecraft:element_53
minecraft:element_54
minecraft:element_55
minecraft:element_56
minecraft:element_57
minecraft:element_58
minecraft:element_59
minecraft:element_6
minecraft:element_60
minecraft:element_61
minecraft:element_62
minecraft:element_63
minecraft:element_64
minecraft:element_65
minecraft:element_66
minecraft:element_67
minecraft:element_68
minecraft:element_69
minecraft:element_7
minecraft:element_70
minecraft:element_71
minecraft:element_72
minecraft:element_73
minecraft:element_74
minecraft:element_75
minecraft:element_76
minecraft:element_77
minecraft:element_78
minecraft:element_79
minecraft:element_8
minecraft:element_80
minecraft:element_81
minecraft:element_82
minecraft:element_83
minecraft:element_84
minecraft:element_85
minecraft:element_86
minecraft:element_87
minecraft:element_88
minecraft:element_89
minecraft:element_9
minecraft:element_90
minecraft:element_91
minecraft:element_92
minecraft:element_93
minecraft:element_94
minecraft:element_95
minecraft:element_96
minecraft:element_97
minecraft:element_98
minecraft:element_99
minecraft:emerald_block
minecraft:emerald_ore
minecraft:enchanting_table
minecraft:end_brick_stairs
minecraft:end_bricks
minecraft:end_gateway
minecraft:end_portal
minecraft:end_portal_frame
minecraft:end_rod
minecraft:end_stone
minecraft:ender_chest
minecraft:farmland
minecraft:fence
minecraft:fence_gate
minecraft:fire
minecraft:fletching_table
minecraft:flower_pot
minecraft:flowing_lava
minecraft:flowing_water
minecraft:frame
minecraft:frosted_ice
minecraft:furnace
minecraft:glass
minecraft:glass_pane
minecraft:glowingobsidian
minecraft:glowstone
minecraft:gold_block
minecraft:gold_ore
minecraft:golden_rail
minecraft:granite_stairs
minecraft:grass
minecraft:grass_path
minecraft:gravel
minecraft:gray_glazed_terracotta
minecraft:green_glazed_terracotta
minecraft:grindstone
minecraft:hard_glass
minecraft:hard_glass_pane
minecraft:hard_stained_glass
minecraft:hard_stained_glass_pane
minecraft:hardened_clay
minecraft:hay_block
minecraft:heavy_weighted_pressure_plate
minecraft:hopper
minecraft:ice
minecraft:info_update
minecraft:info_update2
minecraft:invisibleBedrock
minecraft:iron_bars
minecraft:iron_block
minecraft:iron_door
minecraft:iron_ore
minecraft:iron_trapdoor
minecraft:jukebox
minecraft:jungle_button
minecraft:jungle_door
minecraft:jungle_fence_gate
minecraft:jungle_pressure_plate
minecraft:jungle_stairs
minecraft:jungle_standing_sign
minecraft:jungle_trapdoor
minecraft:jungle_wall_sign
minecraft:kelp
minecraft:ladder
minecraft:lantern
minecraft:lapis_block
minecraft:lapis_ore
minecraft:lava
minecraft:lava_cauldron
minecraft:leaves
minecraft:leaves2
minecraft:lever
minecraft:light_blue_glazed_terracotta
minecraft:light_weighted_pressure_plate
minecraft:lime_glazed_terracotta
minecraft:lit_furnace
minecraft:lit_pumpkin
minecraft:lit_redstone_lamp
minecraft:lit_redstone_ore
minecraft:log
minecraft:log2
minecraft:magenta_glazed_terracotta
minecraft:magma
minecraft:melon_block
minecraft:melon_stem
minecraft:mob_spawner
minecraft:monster_egg
minecraft:mossy_cobblestone
minecraft:mossy_cobblestone_stairs
minecraft:mossy_stone_brick_stairs
minecraft:movingBlock
minecraft:mycelium
minecraft:nether_brick
minecraft:nether_brick_fence
minecraft:nether_brick_stairs
minecraft:nether_wart
minecraft:nether_wart_block
minecraft:netherrack
minecraft:netherreactor
minecraft:normal_stone_stairs
minecraft:noteblock
minecraft:oak_stairs
minecraft:observer
minecraft:obsidian
minecraft:orange_glazed_terracotta
minecraft:packed_ice
minecraft:pink_glazed_terracotta
minecraft:piston
minecraft:pistonArmCollision
minecraft:planks
minecraft:podzol
minecraft:polished_andesite_stairs
minecraft:polished_diorite_stairs
minecraft:polished_granite_stairs
minecraft:portal
minecraft:potatoes
minecraft:powered_comparator
minecraft:powered_repeater
minecraft:prismarine
minecraft:prismarine_bricks_stairs
minecraft:prismarine_stairs
minecraft:pumpkin
minecraft:pumpkin_stem
minecraft:purple_glazed_terracotta
minecraft:purpur_block
minecraft:purpur_stairs
minecraft:quartz_block
minecraft:quartz_ore
minecraft:quartz_stairs
minecraft:rail
minecraft:red_flower
minecraft:red_glazed_terracotta
minecraft:red_mushroom
minecraft:red_mushroom_block
minecraft:red_nether_brick
minecraft:red_nether_brick_stairs
minecraft:red_sandstone
minecraft:red_sandstone_stairs
minecraft:redstone_block
minecraft:redstone_lamp
minecraft:redstone_ore
minecraft:redstone_torch
minecraft:redstone_wire
minecraft:reeds
minecraft:repeating_command_block
minecraft:reserved6
minecraft:sand
minecraft:sandstone
minecraft:sandstone_stairs
minecraft:sapling
minecraft:scaffolding
minecraft:seaLantern
minecraft:sea_pickle
minecraft:seagrass
minecraft:shulker_box
minecraft:silver_glazed_terracotta
minecraft:skull
minecraft:slime
minecraft:smithing_table
minecraft:smoker
minecraft:smooth_quartz_stairs
minecraft:smooth_red_sandstone_stairs
minecraft:smooth_sandstone_stairs
minecraft:smooth_stone
minecraft:snow
minecraft:snow_layer
minecraft:soul_sand
minecraft:sponge
minecraft:spruce_button
minecraft:spruce_door
minecraft:spruce_fence_gate
minecraft:spruce_pressure_plate
minecraft:spruce_stairs
minecraft:spruce_standing_sign
minecraft:spruce_trapdoor
minecraft:spruce_wall_sign
minecraft:stained_glass
minecraft:stained_glass_pane
minecraft:stained_hardened_clay
minecraft:standing_banner
minecraft:standing_sign
minecraft:sticky_piston
minecraft:stone
minecraft:stone_brick_stairs
minecraft:stone_button
minecraft:stone_pressure_plate
minecraft:stone_slab
minecraft:stone_slab2
minecraft:stone_slab3
minecraft:stone_slab4
minecraft:stone_stairs
minecraft:stonebrick
minecraft:stonecutter
minecraft:stripped_acacia_log
minecraft:stripped_birch_log
minecraft:stripped_dark_oak_log
minecraft:stripped_jungle_log
minecraft:stripped_oak_log
minecraft:stripped_spruce_log
minecraft:structure_block
minecraft:tallgrass
minecraft:tnt
minecraft:torch
minecraft:trapdoor
minecraft:trapped_chest
minecraft:tripWire
minecraft:tripwire_hook
minecraft:turtle_egg
minecraft:underwater_torch
minecraft:undyed_shulker_box
minecraft:unlit_redstone_torch
minecraft:unpowered_comparator
minecraft:unpowered_repeater
minecraft:vine
minecraft:wall_banner
minecraft:wall_sign
minecraft:water
minecraft:waterlily
minecraft:web
minecraft:wheat
minecraft:white_glazed_terracotta
minecraft:wooden_button
minecraft:wooden_door
minecraft:wooden_pressure_plate
minecraft:wooden_slab
minecraft:wool
minecraft:yellow_flower
minecraft:yellow_glazed_terracotta

Geometry

Blocks

Parameters

Name

Type

Default Value

Description

elements

List

List of elements that make up the geometry of this block

Name

Type

Default Value

Description

boxes

List

List of cubes that make up the geometry of this element

Name

Type

Default Value

Description

faces

List

List of the 6 faces of the box. If specified, there MUST be 6 faces (front, back, left side, right side, top, bottom)

Name	Type	Default Value	Description
material	String		The material of this face if different from the box's
rotation	Decimal	0.0	UV Rotation of this face. Only acceptable values are 0, 90 and 270 degrees. This allows reusing a texture and just rotating it for different faces
uv	Vector [a, b, c, d]	[ 0.0, 0.0, 1.0, 1.0 ]	Texture coordinates of this face, given as min x, min y, max x, max y withg values between 0.0 and 1.0

material

String

The material of this box if different from the element's

origin

Vector [a, b, c]

[ 0.0, 0.0, 0.0 ]

The position of the center of the box relative to the geometry

size

Vector [a, b, c]

[ 0, 0, 0 ]

Scale of the box in the x, y and z coordinates. A typical block is of scale 1, 1, 1

material

String

The material of this element if different from the block's

name

String

Name of the element

parent

String

Name of the parent element of this element. Pivot and box positions are made relative to the parent element's pivot

pivot

Vector [a, b, c]

[ 0.0, 0.0, 0.0 ]

Position in model space of the pivot point of the element. This is used as the "center" position of the element, as well as the point around which to rotate

rotation

Vector [a, b, c]

[ 0.0, 0.0, 0.0 ]

The rotation of this element about its pivot

format_version

String

0.0.0.0

Version of the block geometry being used. This is used to determine if backwards compatibility is needed

materials

List

List of materials used by this model

parent

String

Parent model of this model

Client Entity Documentation

Client entity definitions are contained within a Resource Pack.
To start, create a new folder and name it "entity" inside the root of the Resource Pack. In the entity folder create a JSON file and give it a name.The JSON file needs a format version and minecraft:client_entity information.

The minecraft:client_entity section contains the description for the entity. Under description there are a number of things that you can set about an entity. Generally, this file is defining what resources a mob requires and gives a friendly name to each, that the other definition files can use.

identifier

The identifier is used to register the entity with the server. In the Client Entity Definitions JSON the identifier sets the appearance of the entity(materials, textures, geometry, etc.) The matching identifier in the Entity Behavior JSON in the Behavior Pack is what gives the entity its behaviors.
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min_engine_version

When present, players can set the min version needed to allow the JSON to be parsed. The version in the definition is compared to the engine version for which the top resource pack was built.If a definition's min_engine_version is newer than that pack's engine version then the definition is not parsed.
Multiple definition files may use the same identifier, in which case only one of those definitions will be loaded. The definition with the same or closest and not greater min_engine_version, as compared to the top resource pack's engine version, will be parsed; all other definitions with the same identifier will not be parsed.
This can be useful for continuing to support an older version of an entity, when an older resource pack is used at the top of the resource pack stack, while also supporting a newer version of the entity in all other cases.
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materials, textures, animations

Players can set the materials, texture and geometry used for the entity in this section. Players can set one or more materials, textures, and geometries that can be used by the mob. Players must set user defined names for them. These names are used in the Render Controllers JSON. Players can reference materials, textures, and geometry from the vanilla Minecraft Resource Pack or create their own. Custom materials, textures, and geometry should be in the corresponding folder at the root of the Resource Pack.
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scripts

Scripts allow players to use MoLang to compute calculations once and store that value. This value than can be used over and over again without the need to constantly recompute the calculations. Scripts currently support pre - animation and scale.More script types will be added later.
-Pre-animation scripts are evaluated immediately before animations are processed.
-Scale sets the scale of the mob's geometry.

Example pre-animation script for cod

"scripts": {
  "pre_animation": [
    "variable.ZRot = !query.is_in_water ? Math.cos((query.time_stamp + global.frame_alpha) * 14.32) * 90 : 0.0;",
    "variable.AnimationAmountBlend = Math.lerp(variable.AnimationAmountPrev, variable.AnimationAmount, global.frame_alpha);"
  ]
},

Example scale script for the bat

"scripts": {
  "scale": "0.35"
},

animations

Allows the player to assign names to reference the long name for animations. These names are used by the animation controller JSON. Players can reference animations from the vanilla Minecraft Resource Pack or create their own. Custom animations should be in the animation folder at the root of the Resource Pack.
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animation_controllers

Animation controllers decide which animations to play when. Each Controller contains a list of states that play one or more animations. Allows the player to assign names to reference the long names for animation controllers. Names are required and need to be unique from all other names in the animation controllers for that mob. Players can reference animation controllers from the vanilla Minecraft Resource Pack or create their own. Custom animation controllers should be in the animation_controllers folder at the root of the Resource Pack.
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particle

Allows the player to assign a key to reference the long name for particles. When these are present, the particle is created when the entity is spawned. Keys are required and need to be unique from all other keys in the animation controllers. Players can reference particles from the vanilla Minecraft Resource Pack or create their own. Custom particles should be in the particle folder at the root of the Resource Pack.
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render_controllers

Specifies the names of render controllers. This name needs to match the name of a corresponding JSON located in the Render Controllers folder. Players can reference Render Controllers from the vanilla Minecraft Resource Pack or create their own. Custom Render Controllers should be in the textures folder at the root of the Resource Pack.
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locators

Locator offsets are specified in model space. An example of a locator is the "lead" locator used to specify where the lead will attach to graphically.

"locators": {
  "lead": { "head": [ 0.0, 14.0, -6.0 ] }
}

Example client entity definitions JSON for the pig

"format_version": "1.8.0",   "minecraft:client_entity": {
     "description": {
       "identifier": "minecraft:pig",
       "min_engine_version": "1.8.0",
       "materials": { "default": "pig" },
       "textures": {
         "default": "textures/entity/pig/pig",
         "saddled": "textures/entity/pig/pig_saddle"
       },
       "geometry": {
         "default": "geometry.pig.v1.8"
       },
       "animations": {
         "setup": "animation.pig.setup",
         "walk": "animation.quadruped.walk",
         "look_at_target": "animation.common.look_at_target",
         "baby_transform": "animation.pig.baby_transform"
       },
       "animation_controllers": [
         { "setup": "controller.animation.pig.setup" },
         { "move": "controller.animation.pig.move" },
         { "baby": "controller.animation.pig.baby" }
       ],
       "render_controllers": [ "controller.render.pig" ],
       "locators": {
         "lead": { "head": [ 0.0, 14.0, -6.0 ] }
       },
       "spawn_egg": {
         "texture": "spawn_egg",
         "texture_index": 2
       }
     }
   }

enable_attachables

This determines if the entity can equip attachables when this is set to true. This allows the entity to render armor.

"enable_attachables": true

Spawn Egg

This sets the color or texture used for the entity Spawn Egg. There are 2 ways to do this. The first is to use the hex value for the base color and the overlay color.

Parameters

Example Spawn Egg using hex value

"spawn_egg": {
  "base_color": "#53443E",
  "overlay_color": "#2E6854"
}

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The other way is to specify a texture.

Example Spawn Egg specifying a texture. The texture is located in the "items_texture" JSON in the textures folder of the Resource Pack. When there are more than one texture associated with a texture name you can use an index to pick the one that you want. If no index is specified than it is assumed to be 0 and the first texture in the list is used.

Example Spawn Egg specifying a texture

"spawn_egg": {
  "texture": "spawn_egg", 
  "texture_index": 2
}

Server Entity Documentation

Entity Definition Properties

These properties are part of the Entity Definition as a whole and go before the Component or Component Groups. Make sure to place them before any Components, Component Groups or Events sections or they will be ignored.

do_not_upgrade

Disables all current and future backwards compatibility for this entity. If new components or properties are added or changed to the vanilla version of this entity, they will not be applied.
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format_version

Specifies the version of the game this entity was made in. If the version is lower than the current version, any changes made to the entity in the vanilla version will be applied to it.
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Code Example

Example

{
  "minecraft:entity": {
    "format_version": "1.2.0",
    "do_not_upgrade": {},
    "component_groups": {
      ...
    }
    ...
  }
}

Entity Description Properties

This section defines properties required to identify and construct the entity

Entity Description Properties

Parameters

identifier

Sets the name for this entity's description.

Parameters

Type	Default Value	Description
String		The identifier for this entity

is_experimental

Sets whether or not this entity is experimental. Experimental entities are only enabled when the experimental toggle is enabled.

Parameters

Type	Default Value	Description
Boolean	false	Flag to mark this entity as being experimental or not.

is_spawnable

Sets whether or not this entity has a spawn egg in the creative ui.

Parameters

Type	Default Value	Description
Boolean	false	Set to determine if this entity has a spawn egg.

is_summonable

Sets whether or not we can summon this entity using commands such as /summon.

Parameters

Type	Default Value	Description
Boolean	false	Flag to mark this entity as being summonable or not.

runtime_identifier

Sets the name for the Vanilla Minecraft identifier this entity will use to build itself from.

Parameters

Type	Default Value	Description
String		The identifier for the class to construct this entity with

Attributes

minecraft:attack

Defines an entity's melee attack and any additional effects on it.

Parameters

Name	Type	Default Value	Description
damage	Range [a, b]		Range of the random amount of damage the melee attack deals. A negative value can heal the entity instead of hurting it
effect_name	String		Identifier of the status ailment to apply to an entity attacked by this entity's melee attack
effect_duration	Decimal	0.0	Duration in seconds of the status ailment applied to the damaged entity

minecraft:spell_effects

Defines what mob effects to add and remove to the entity when adding this component.

Parameters

Name

Type

Default Value

Description

add_effects

List

List of effects to add to this entity after adding this component

Name	Type	Default Value	Description
effect	String		Effect to add to this entity. Includes 'duration' in seconds, 'amplifier' level, 'ambient' if it is to be considered an ambient effect, and 'visible' if the effect should be visible

remove_effects

String

List of identifiers of effects to be removed from this entity after adding this component

minecraft:strength

Defines the entity's strength to carry items.

Parameters

Name	Type	Default Value	Description
max	Integer	5	The maximum strength of this entity
value	Integer	1	The initial value of the strength

Properties

minecraft:ambient_sound_interval

Sets the entity's delay between playing its ambient sound.

Parameters

Name	Type	Default Value	Description
range	Decimal	16.0	Maximum time is seconds to randomly add to the ambient sound delay time.
value	Decimal	8.0	Minimum time in seconds before the entity plays its ambient sound again

minecraft:burns_in_daylight

Specifies if/how a mob burns in daylight.
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minecraft:can_climb

Allows this entity to climb up ladders.
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minecraft:can_fly

Marks the entity as being able to fly, the pathfinder won't be restricted to paths where a solid block is required underneath it.
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minecraft:can_power_jump

Allows the entity to power jump like the horse does in vanilla.
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minecraft:collision_box

Sets the width and height of the Entity's collision box.

Parameters

Name	Type	Default Value	Description
width	Decimal	1.0	Width and Depth of the collision box in blocks. A negative value will be assumed to be 0
height	Decimal	1.0	Height of the collision box in blocks. A negative value will be assumed to be 0

minecraft:color

Defines the entity's color. Only works on vanilla entities that have predefined color values (sheep, llama, shulker).

Parameters

Name	Type	Default Value	Description
value	Integer	0	The Palette Color value of the entity

minecraft:color2

Defines the entity's second texture color. Only works on vanilla entities that have a second predefined color values (tropical fish).

Parameters

Name	Type	Default Value	Description
value	Integer	0	The second Palette Color value of the entity

minecraft:default_look_angle

Sets this entity's default head rotation angle.

Parameters

Name	Type	Default Value	Description
value	Decimal	0.0f	Angle in degrees

minecraft:equipment

Sets the Equipment table to use for this Entity.

Parameters

Name	Type	Default Value	Description
table	String		The file path to the equipment table, relative to the behavior pack's root
slot_drop_chance	List		A list of slots with the chance to drop an equipped item from that slot

minecraft:fire_immune

Sets that this entity doesn't take damage from fire.
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minecraft:floats_in_liquid

Sets that this entity can float in liquid blocks.
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minecraft:flying_speed

Speed in Blocks that this entity flies at.

Parameters

Name	Type	Default Value	Description
value	Decimal	0.02	Flying speed in blocks per tick

minecraft:foot_size

Sets the number of blocks the entity can step without jumping.

Parameters

Name	Type	Default Value	Description
value	Decimal	0.5	The value of the size of the entity's step

minecraft:friction_modifier

Defines how much does friction affect this entity.

Parameters

Name	Type	Default Value	Description
value	Decimal	1.0	The higher the number, the more the friction affects this entity. A value of 1.0 means regular friction, while 2.0 means twice as much

minecraft:ground_offset

Sets the offset from the ground that the entity is actually at.

Parameters

Name	Type	Default Value	Description
value	Decimal	0.0	The value of the entity's offset from the terrain, in blocks

minecraft:hurt_when_wet

Specifies if an actor is hurt when wet.
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minecraft:input_ground_controlled

When configured as a rideable entity, the entity will be controlled using WASD controls.
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minecraft:is_baby

Sets that this entity is a baby.
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minecraft:is_charged

Sets that this entity is charged.
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minecraft:is_chested

Sets that this entity is currently carrying a chest.
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minecraft:is_dyeable

Allows dyes to be used on this entity to change its color.

Parameters

Name	Type	Default Value	Description
interact_text	String		The text that will display when interacting with this entity with a dye when playing with Touch-screen controls

minecraft:is_ignited

Sets that this entity is currently on fire.
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minecraft:is_saddled

Sets that this entity is currently saddled.
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minecraft:is_shaking

Sets that this entity is currently shaking.
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minecraft:is_sheared

Sets that this entity is currently sheared.
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minecraft:is_stackable

Sets that this entity can be stacked.
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minecraft:is_tamed

Sets that this entity is currently tamed.
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minecraft:item_controllable

Defines what items can be used to control this entity while ridden

Parameters

Name	Type	Default Value	Description
control_items	List		List of items that can be used to control this entity

minecraft:loot

Sets the loot table for what items this entity drops upon death.

Parameters

Name	Type	Default Value	Description
table	String		The path to the loot table, relative to the Behavior Pack's root

minecraft:mark_variant

Additional variant value. Can be used to further differentiate variants.

Parameters

Name	Type	Default Value	Description
value	Integer	0	The ID of the variant. By convention, 0 is the ID of the base entity

minecraft:push_through

Sets the distance through which the entity can push through.

Parameters

Name	Type	Default Value	Description
value	Decimal	0.0	The value of the entity's push-through, in blocks

minecraft:scale

Sets the entity's visual size.

Parameters

Name	Type	Default Value	Description
value	Decimal	1.0	The value of the scale. 1.0 means the entity will appear at the scale they are defined in their model. Higher numbers make the entity bigger

minecraft:sound_volume

Sets the entity's base volume for sound effects.

Parameters

Name	Type	Default Value	Description
value	Decimal	1.0	The value of the volume the entity uses for sound effects

minecraft:type_family

Defines the families this entity belongs to.

Parameters

Name	Type	Default Value	Description
family	List		List of family names

minecraft:variant

Used to differentiate the component group of a variant of an entity from others (e.g. ocelot, villager)

Parameters

Name	Type	Default Value	Description
value	Integer	0	The ID of the variant. By convention, 0 is the ID of the base entity

minecraft:walk_animation_speed

Sets the speed multiplier for this entity's walk animation speed.

Parameters

Name	Type	Default Value	Description
value	Decimal	1.0	The higher the number, the faster the animation for walking plays. A value of 1.0 means normal speed, while 2.0 means twice as fast

minecraft:wants_jockey

Sets that this entity wants to become a jockey.
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Components

minecraft:addrider

Adds a rider to the entity. Requires minecraft:rideable.

Parameters

Name	Type	Default Value	Description
entity_type	String		The entity type that will be riding this entity

minecraft:ageable

Adds a timer for the entity to grow up. It can be accelerated by giving the entity the items it likes as defined by feedItems.

Parameters

Name	Type	Default Value	Description
drop_items	List		List of items that the entity drops when it grows up.
duration	Decimal	1200.0	Amount of time before the entity grows
feedItems	List		List of items that can be fed to the entity. Includes 'item' for the item name and 'growth' to define how much time it grows up by
grow_up	String		Event to run when this entity grows up

minecraft:angry

Defines the entity's 'angry' state using a timer.

Parameters

Name	Type	Default Value	Description
broadcastAnger	Boolean	false	If true, other entities of the same entity definition within the broadcastRange will also become angry
broadcastRange	Integer	20	Distance in blocks within which other entities of the same entity definition will become angry
broadcast_filters	Minecraft Filter		Conditions that make this entry in the list valid
calm_event	String		Event to run after the number of seconds specified in duration expires (when the entity stops being 'angry')
duration	Integer	25	The amount of time in seconds that the entity will be angry
duration_delta	Integer	0	Variance in seconds added to the duration [-delta, delta]

minecraft:boostable

Defines the conditions and behavior of a rideable entity's boost

Parameters

Name

Type

Default Value

Description

boost_items

List

List of items that can be used to boost while riding this entity. Each item has the following properties:

Name	Type	Default Value	Description
damage	Integer	1	This is the damage that the item will take each time it is used
item	String		Name of the item that can be used to boost
replaceItem	String		The item used to boost will become this item once it is used up

duration

Integer

Time in seconds for the boost

speed_multiplier

Decimal

1.0

Factor by which the entity's normal speed increases. E.g. 2.0 means go twice as fast

minecraft:breathable

Defines what blocks this entity can breathe in and gives them the ability to suffocate

Parameters

Name	Type	Default Value	Description
breatheBlocks	List		List of blocks this entity can breathe in, in addition to the above
breathesAir	Boolean	true	If true, this entity can breathe in air
breathesLava	Boolean	false	If true, this entity can breathe in lava
breathesSolids	Boolean	false	If true, this entity can breathe in solid blocks
breathesWater	Boolean	false	If true, this entity can breathe in water
generatesBubbles	Boolean	true	If true, this entity will have visible bubbles while in water
inhaleTime	Decimal	0.0	Time in seconds to recover breath to maximum
nonBreatheBlocks	List		List of blocks this entity can't breathe in, in addition to the above
suffocateTime	Integer	-20	Time in seconds between suffocation damage
totalSupply	Integer	15	Time in seconds the entity can hold its breath

minecraft:breedable

Defines the way an entity can get into the 'love' state.

Parameters

Name

Type

Default Value

Description

allowSitting

Boolean

false

If true, entities can breed while sitting

blend_attributes

Boolean

true

If true, the entities will blend their attributes in the offspring after they breed. For example, horses blend their health, movement, and jump_strength in their offspring.

breedCooldown

Decimal

60.0

Time in seconds before the Entity can breed again

breedItems

List

The list of items that can be used to get the entity into the 'love' state

breedsWith

List

The list of entity definitions that this entity can breed with.

Name	Type	Description
babyType	String	The entity definition of this entity's babies
breed_event	String	Event to run when this entity breeds
mateType	String	The entity definition of this entity's mate

causes_pregnancy

Boolean

false

If true, the entity will become pregnant instead of spawning a baby.

environment_requirements

List

The list of nearby block requirements to get the entity into the 'love' state.

block

The block types required nearby for the entity to breed.
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count

The number of the required block types nearby for the entity to breed.
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radius

How many blocks radius from the mob's center to search in for the required blocks. Bounded between 0 and 16.
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extraBabyChance

Decimal

0.0

Chance that up to 16 babies will spawn between 0.0 and 1.0, where 1.0 is 100%

inheritTamed

Boolean

true

If true, the babies will be automatically tamed if its parents are

mutation_factor

JSON Object

Determines how likely the babies are to NOT inherit one of their parent's variances. Values are between 0.0 and 1.0, with a higher number meaning more likely to mutate

Name	Type	Description
color	Decimal	The percentage chance of a mutation on the entity's color
extra_variant	Decimal	The percentage chance of a mutation on the entity's extra variant type
variant	Decimal	The percentage chance of a mutation on the entity's variant type

requireTame

Boolean

true

If true, the entities need to be tamed first before they can breed.

minecraft:bribeable

Defines the way an entity can get into the 'bribed' state.

Parameters

Name	Type	Default Value	Description
bribe_cooldown	Decimal	2.0	Time in seconds before the Entity can be bribed again
bribe_items	List		The list of items that can be used to bribe the entity

minecraft:burns_in_daylight

Specifies if/how a mob burns in daylight.
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minecraft:damage_over_time

Applies defined amount of damage to the entity at specified intervals

Parameters

Name	Type	Default Value	Description
damagePerHurt	Integer	1	Amount of damage caused each hurt
timeBetweenHurt	Integer	0	Time in seconds between damage

minecraft:damage_sensor

Defines what events to call when this entity is damaged by specific entities or items. Can be either an array or a single instance.

Parameters

Name	Type	Default Value	Description
on_damage	List		List of triggers with the events to call when taking this specific kind of damage, allows specifying filters for entity definitions and events
deals_damage	Boolean	true	If true, the damage dealt to the entity will take away health from it, set to false to make the entity ignore that damage
cause	String		Type of damage that triggers this set of events

minecraft:environment_sensor

Creates a trigger based on environment conditions.

Parameters

Name	Type	Default Value	Description
on_environment	List		The list of triggers that fire when the environment conditions match the given filter criteria.

minecraft:equippable

Defines an entity's behavior for having items equipped to it

Parameters

Name

Type

Default Value

Description

slots

List

List of slots and the item that can be equipped

Name	Type	Default Value	Description
accepted_items	List		The list of items that can go in this slot
interact_text	String		Text to be displayed when the entity can be equipped with this item when playing with Touch-screen controls
item	String		Identifier of the item that can be equipped for this slot
on_equip	String		Event to trigger when this entity is equipped with this item
on_unequip	String		Event to trigger when this item is removed from this entity
slot	Integer	0	The slot number of this slot

minecraft:explode

Defines how the entity explodes.

Parameters

Name	Type	Default Value	Description
fuseLength	Range [a, b]	[0.0, 0.0]	The range for the random amount of time the fuse will be lit before exploding, a negative value means the explosion will be immediate
power	Decimal	3.0	The radius of the explosion in blocks and the amount of damage the explosion deals
maxResistance	Decimal	Infinite	A blocks explosion resistance will be capped at this value when an explosion occurs
fuseLit	Boolean	false	If true, the fuse is already lit when this component is added to the entity
causesFire	Boolean	false	If true, blocks in the explosion radius will be set on fire
breaks_blocks	Boolean	true	If true, the explosion will destroy blocks in the explosion radius
fireAffectedByGriefing	Boolean	false	If true, whether the explosion causes fire is affected by the mob griefing game rule
destroyAffectedByGriefing	Boolean	false	If true, whether the explosion breaks blocks is affected by the mob griefing game rule

minecraft:genetics

Defines the way a mob's genes and alleles are passed on to it's offspring, and how those traits manifest in the child. Compatible parent genes are crossed together, the alleles are handed down from the parents to the child, and any matching genetic variants fire off JSON events to modify the child and express the traits.

Parameters

Name

Type

Default Value

Description

genes

List

The list of genes that this entity has and will cross with a partner during breeding.

Name

Type

Default Value

Description

allele_range

Integer

The range of positive integer allele values for this gene. Spawned mobs will have a random number in this range assigned to them.

Name	Type	Default Value	Description
range_max	Integer	0	Upper bound of the allele values for this gene.
range_min	Integer	0	Lower bound of the allele values for this gene.

genetic_variants

List

The list of genetic variants for this gene. These check for particular allele combinations and fire events when all of them are satisfied.

Name	Type	Default Value	Description
birth_event	String		Event to run when this mob is created and matches the above allele conditions.
both_allele	Integer	-1	If this value is non-negative, compare both the mob's main and hidden alleles with this value for a match with both. Can also be a range of integers.
either_allele	Integer	-1	If this value is non-negative, compare both the mob's main and hidden alleles with this value for a match with either. Can also be a range of integers.
hidden_allele	Integer	-1	If this value is non-negative, compare the mob's hidden allele with this value for a match. Can also be a range of integers.
main_allele	Integer	-1	If this value is non-negative, compare the mob's main allele with this value for a match. Can also be a range of integers.

name

String

The name of the gene.

mutation_rate

Decimal

0.03125

Chance that an allele will be replaced with a random one instead of the parent's allele during birth.

minecraft:giveable

Defines sets of items that can be used to trigger events when used on this entity. The item will also be taken and placed in the entity's inventory.

Parameters

Name	Type	Default Value	Description
cooldown	Decimal	0.0	An optional cool down in seconds to prevent spamming interactions.
items	List		The list of items that can be given to the entity to place in their inventory.
on_give	String		Event to fire when the correct item is given.

minecraft:healable

Defines the interactions with this entity for healing it.

Parameters

Name

Type

Default Value

Description

force_use

Boolean

false

Determines if item can be used regardless of entity being at full health

filters

Minecraft Filter

The filter group that defines the conditions for this trigger

items

Array

The array of items that can be used to heal this entity

Name	Type	Default Value	Description
item	String		Item identifier that can be used to heal this entity
heal_amount	Integer	1	The amount of health this entity gains when fed this item
filters	Minecraft Filter		The filter group that defines the conditions for using this item to heal the entity

minecraft:hurt_when_wet

Specifies if an actor is hurt when wet.
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minecraft:insomnia

Adds a timer since last rested to see if phantoms should spawn.

Parameters

Name	Type	Default Value	Description
days_until_insomnia	Decimal	3.0	Number of days the mob has to stay up until the insomnia effect begins.

minecraft:interact

Defines interactions with this entity.

Parameters

Name

Type

Default Value

Description

add_items

JSON Object

Loot table with items to add to the player's inventory upon successful interaction

Name	Type	Default Value	Description
table	String		File path, relative to the Behavior Pack's path, to the loot table file

cooldown

Decimal

0.0

Time in seconds before this entity can be interacted with again

hurt_item

Integer

The amount of damage the item will take when used to interact with this entity. A value of 0 means the item won't lose durability

interact_text

String

Text to show when the player is able to interact in this way with this entity when playing with Touch-screen controls

on_interact

String

Event to fire when the interaction occurs

particle_on_start

JSON Object

Particle effect that will be triggered at the start of the interaction

particle_offset_towards_interactor

Whether or not the particle will appear closer to who performed the interaction
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particle_type

The type of particle that will be spawned
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particle_y_offset

Will offset the particle this amount in the y direction
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play_sounds

String

List of sounds to play when the interaction occurs

spawn_entities

String

List of entities to spawn when the interaction occurs

spawn_items

JSON Object

Loot table with items to drop on the ground upon successful interaction

Name	Type	Default Value	Description
table	String		File path, relative to the Behavior Pack's path, to the loot table file

swing

Boolean

false

If true, the player will do the 'swing' animation when interacting with this entity

transform_to_item

String

The item used will transform to this item upon successful interaction. Format: itemName:auxValue

use_item

Boolean

false

If true, the interaction will use an item

minecraft:inventory

Defines this entity's inventory properties.

Parameters

Name	Type	Default Value	Description
additional_slots_per_strength	Integer	0	Number of slots that this entity can gain per extra strength
can_be_siphoned_from	Boolean	false	If true, the contents of this inventory can be removed by a hopper
container_type	String	none	Type of container this entity has. Can be horse, minecart_chest, minecart_hopper, inventory, container or hopper
inventory_size	Integer	5	Number of slots the container has
private	Boolean	false	If true, only the entity can access the inventory
restrict_to_owner	Boolean	false	If true, the entity's inventory can only be accessed by its owner or itself

minecraft:item_hopper

Determines that this entity is an item hopper
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minecraft:jump.dynamic

Defines a dynamic type jump control that will change jump properties based on the speed modifier of the mob.
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minecraft:jump.static

Gives the entity the ability to jump.

Parameters

Name	Type	Default Value	Description
jump_power	Decimal	0.42	The initial vertical velocity for the jump

minecraft:leashable

Allows this entity to be leashed and Defines the conditions and events for this entity when is leashed.

Parameters

Name	Type	Default Value	Description
hard_distance	Decimal	6.0	Distance in blocks at which the leash stiffens, restricting movement
max_distance	Decimal	10.0	Distance in blocks at which the leash breaks
on_leash	String		Event to call when this entity is leashed
on_unleash	String		Event to call when this entity is unleashed
soft_distance	Decimal	4.0	Distance in blocks at which the 'spring' effect starts acting to keep this entity close to the entity that leashed it

minecraft:lookat

Defines the behavior when another entity looks at this entity.

Parameters

Name	Type	Default Value	Description
filters	Minecraft Filter	player	Defines the entities that can trigger this component
look_cooldown	Range [a, b]	[0.0, 0.0]	The range for the random amount of time during which the entity is 'cooling down' and won't get angered or look for a target
look_event	String		The event identifier to run when the entities specified in filters look at this entity
mAllowInvulnerable	Boolean	false	If true, invulnerable entities (e.g. Players in creative mode) are considered valid targets
searchRadius	Decimal	10.0	Maximum distance this entity will look for another entity looking at it
setTarget	Boolean	true	If true, this entity will set the attack target as the entity that looked at it

minecraft:movement.amphibious

This move control allows the mob to swim in water and walk on land.

Parameters

Name	Type	Default Value	Description
max_turn	Decimal	30.0	The maximum number in degrees the mob can turn per tick.

minecraft:movement.basic

This component accents the movement of an entity.

Parameters

Name	Type	Default Value	Description
max_turn	Decimal	30.0	The maximum number in degrees the mob can turn per tick.

minecraft:movement.fly

This move control causes the mob to fly.

Parameters

Name	Type	Default Value	Description
max_turn	Decimal	30.0	The maximum number in degrees the mob can turn per tick.

minecraft:movement.generic

This move control allows a mob to fly, swim, climb, etc.

Parameters

Name	Type	Default Value	Description
max_turn	Decimal	30.0	The maximum number in degrees the mob can turn per tick.

minecraft:movement.jump

Move control that causes the mob to jump as it moves with a specified delay between jumps.

Parameters

Name	Type	Default Value	Description
jump_delay	Range [a, b]	[0.0, 0.0]	Delay after landing when using the slime move control.
max_turn	Decimal	30.0	The maximum number in degrees the mob can turn per tick.

minecraft:movement.skip

This move control causes the mob to hop as it moves.

Parameters

Name	Type	Default Value	Description
max_turn	Decimal	30.0	The maximum number in degrees the mob can turn per tick.

minecraft:movement.sway

This move control causes the mob to sway side to side giving the impression it is swimming.

Parameters

Name	Type	Default Value	Description
max_turn	Decimal	30.0	The maximum number in degrees the mob can turn per tick.

minecraft:nameable

Allows this entity to be named (e.g. using a name tag)

Parameters

Name

Type

Default Value

Description

allowNameTagRenaming

Boolean

true

If true, this entity can be renamed with name tags

alwaysShow

Boolean

false

If true, the name will always be shown

default_trigger

String

Trigger to run when the entity gets named

name_actions

JSON Object

Describes the special names for this entity and the events to call when the entity acquires those names

Name	Type	Default Value	Description
name_filter	String		List of special names that will cause the events defined in 'on_named' to fire
on_named	String		Event to be called when this entity acquires the name specified in 'name_filter'

minecraft:navigation.climb

Allows this entity to generate paths that include vertical walls like the vanilla Spiders do.

Parameters

Name	Type	Default Value	Description
avoid_portals	Boolean	false	Tells the pathfinder to avoid portals (like nether portals) when finding a path
avoid_sun	Boolean	false	Whether or not the pathfinder should avoid tiles that are exposed to the sun when creating paths
avoid_water	Boolean	false	Tells the pathfinder to avoid water when creating a path
can_open_doors	Boolean	false	Tells the pathfinder that it can path through a closed door assuming the AI will open the door
can_pass_doors	Boolean	true	Whether a path can be created through a door
can_path_over_water	Boolean	false	Tells the pathfinder whether or not it can travel on the surface of the water
can_sink	Boolean	true	Tells the pathfinder whether or not it will be pulled down by gravity while in water

minecraft:navigation.float

Allows this entity to generate paths by flying around the air like the regular Ghast.

Parameters

Name	Type	Default Value	Description
avoid_portals	Boolean	false	Tells the pathfinder to avoid portals (like nether portals) when finding a path
avoid_sun	Boolean	false	Whether or not the pathfinder should avoid tiles that are exposed to the sun when creating paths
avoid_water	Boolean	false	Tells the pathfinder to avoid water when creating a path
can_open_doors	Boolean	false	Tells the pathfinder that it can path through a closed door assuming the AI will open the door
can_pass_doors	Boolean	true	Whether a path can be created through a door
can_path_over_water	Boolean	false	Tells the pathfinder whether or not it can travel on the surface of the water
can_sink	Boolean	true	Tells the pathfinder whether or not it will be pulled down by gravity while in water

minecraft:navigation.fly

Allows this entity to generate paths in the air like the vanilla Parrots do.

Parameters

Name	Type	Default Value	Description
avoid_portals	Boolean	false	Tells the pathfinder to avoid portals (like nether portals) when finding a path
avoid_sun	Boolean	false	Whether or not the pathfinder should avoid tiles that are exposed to the sun when creating paths
avoid_water	Boolean	false	Tells the pathfinder to avoid water when creating a path
can_open_doors	Boolean	false	Tells the pathfinder that it can path through a closed door assuming the AI will open the door
can_pass_doors	Boolean	true	Whether a path can be created through a door
can_path_over_water	Boolean	false	Tells the pathfinder whether or not it can travel on the surface of the water
can_sink	Boolean	true	Tells the pathfinder whether or not it will be pulled down by gravity while in water

minecraft:navigation.generic

Allows this entity to generate paths by walking, swimming, flying and/or climbing around and jumping up and down a block.

Parameters

Name	Type	Default Value	Description
avoid_portals	Boolean	false	Tells the pathfinder to avoid portals (like nether portals) when finding a path
avoid_sun	Boolean	false	Whether or not the pathfinder should avoid tiles that are exposed to the sun when creating paths
avoid_water	Boolean	false	Tells the pathfinder to avoid water when creating a path
can_open_doors	Boolean	false	Tells the pathfinder that it can path through a closed door assuming the AI will open the door
can_pass_doors	Boolean	true	Whether a path can be created through a door
can_path_over_water	Boolean	false	Tells the pathfinder whether or not it can travel on the surface of the water
can_sink	Boolean	true	Tells the pathfinder whether or not it will be pulled down by gravity while in water

minecraft:navigation.swim

Allows this entity to generate paths that include water.

Parameters

Name	Type	Default Value	Description
avoid_portals	Boolean	false	Tells the pathfinder to avoid portals (like nether portals) when finding a path
avoid_sun	Boolean	false	Whether or not the pathfinder should avoid tiles that are exposed to the sun when creating paths
avoid_water	Boolean	false	Tells the pathfinder to avoid water when creating a path
can_open_doors	Boolean	false	Tells the pathfinder that it can path through a closed door assuming the AI will open the door
can_pass_doors	Boolean	true	Whether a path can be created through a door
can_path_over_water	Boolean	false	Tells the pathfinder whether or not it can travel on the surface of the water
can_sink	Boolean	true	Tells the pathfinder whether or not it will be pulled down by gravity while in water

minecraft:navigation.walk

Allows this entity to generate paths by walking around and jumping up and down a block like regular mobs.

Parameters

Name	Type	Default Value	Description
avoid_portals	Boolean	false	Tells the pathfinder to avoid portals (like nether portals) when finding a path
avoid_sun	Boolean	false	Whether or not the pathfinder should avoid tiles that are exposed to the sun when creating paths
avoid_water	Boolean	false	Tells the pathfinder to avoid water when creating a path
can_open_doors	Boolean	false	Tells the pathfinder that it can path through a closed door assuming the AI will open the door
can_pass_doors	Boolean	true	Whether a path can be created through a door
can_path_over_water	Boolean	false	Tells the pathfinder whether or not it can travel on the surface of the water
can_sink	Boolean	true	Tells the pathfinder whether or not it will be pulled down by gravity while in water

minecraft:peek

Defines the entity's 'peek' behavior, defining the events that should be called during it

Parameters

Name	Type	Description
on_close	String	Event to call when the entity is done peeking
on_open	String	Event to call when the entity starts peeking
on_target_open	String	Event to call when the entity's target entity starts peeking

minecraft:projectile

Allows the entity to be a thrown entity.

Parameters

Name	Type	Default Value	Description
angleoffset	Decimal	0.0	Determines the angle at which the projectile is thrown
catchFire	Boolean	false	If true, the entity hit will be set on fire
critParticleOnHurt	Boolean	false	If true, the projectile will produce additional particles when a critical hit happens
destroyOnHurt	Boolean	false	If true, this entity will be destroyed when hit
filter	String		Entity Definitions defined here can't be hurt by the projectile
fireAffectedByGriefing	Boolean	false	If true, whether the projectile causes fire is affected by the mob griefing game rule
gravity	Decimal	0.05	The gravity applied to this entity when thrown. The higher the value, the faster the entity falls
hitSound	String		The sound that plays when the projectile hits something
homing	Boolean	false	If true, the projectile homes in to the nearest entity
inertia	Decimal	0.99	The fraction of the projectile's speed maintained every frame while traveling in air
isdangerous	Boolean	false	If true, the projectile will be treated as dangerous to the players
knockback	Boolean	true	If true, the projectile will knock back the entity it hits
lightning	Boolean	false	If true, the entity hit will be struck by lightning
liquid_inertia	Decimal	0.6	The fraction of the projectile's speed maintained every frame while traveling in water
multipletargets	Boolean	true	If true, the projectile can hit multiple entities per flight
offset	Vector [a, b, c]	[0.0, 0.5, 0.0]	The offset from the entity's anchor where the projectile will spawn
onFireTime	Decimal	5.0	Time in seconds that the entity hit will be on fire for
particle	String	iconcrack	Particle to use upon collision
potionEffect	Integer	-1	Defines the effect the arrow will apply to the entity it hits
power	Decimal	1.3	Determines the velocity of the projectile
reflectOnHurt	Boolean	false	If true, this entity will be reflected back when hit
semirandomdiffdamage	Boolean	false	If true, damage will be randomized based on damage and speed
shootSound	String		The sound that plays when the projectile is shot
shoottarget	Boolean	true	If true, the projectile will be shot towards the target of the entity firing it
shouldbounce	Boolean	false	If true, the projectile will bounce upon hit
splashPotion	Boolean	false	If true, the projectile will be treated like a splash potion
splashRange	Decimal	4.0	Radius in blocks of the 'splash' effect
uncertaintyBase	Decimal	0.0	The base accuracy. Accuracy is determined by the formula uncertaintyBase - difficultyLevel * uncertaintyMultiplier
uncertaintyMultiplier	Decimal	0.0	Determines how much difficulty affects accuracy. Accuracy is determined by the formula uncertaintyBase - difficultyLevel * uncertaintyMultiplier

minecraft:rail_movement

Defines the entity's movement on the rails. An entity with this component is only allowed to move on the rail.

Parameters

Name	Type	Default Value	Description
max_speed	Decimal	0.4	Maximum speed that this entity will move at when on the rail

minecraft:rail_sensor

Defines the behavior of the entity when the rail gets activated or deactivated.

Parameters

Name	Type	Default Value	Description
check_block_types	Boolean	false	If true, on tick this entity will trigger its on_deactivate behavior
eject_on_activate	Boolean	true	If true, this entity will eject all of its riders when it passes over an activated rail
eject_on_deactivate	Boolean	false	If true, this entity will eject all of its riders when it passes over a deactivated rail
on_activate	String		Event to call when the rail is activated
on_deactivate	String		Event to call when the rail is deactivated
tick_command_block_on_activate	Boolean	true	If true, command blocks will start ticking when passing over an activated rail
tick_command_block_on_deactivate	Boolean	false	If false, command blocks will stop ticking when passing over a deactivated rail

minecraft:rideable

Determines whether this entity can be ridden. Allows specifying the different seat positions and quantity.

Parameters

Name

Type

Default Value

Description

controlling_seat

Integer

The seat that designates the driver of the entity

crouching_skip_interact

Boolean

true

If true, this entity can't be interacted with if the entity interacting with it is crouching

family_types

List

List of entities that can ride this entity

interact_text

String

The text to display when the player can interact with the entity when playing with Touch-screen controls

pull_in_entities

Boolean

false

If true, this entity will pull in entities that are in the correct family_types into any available seats

rider_can_interact

Boolean

false

If true, this entity will be picked when looked at by the rider

seat_count

Integer

The number of entities that can ride this entity at the same time

seats

List

The list of positions and number of riders for each position for entities riding this entity

Name	Type	Default Value	Description
lock_rider_rotation	Decimal	181.0	Angle in degrees that a rider is allowed to rotate while riding this entity. Omit this property for no limit
max_rider_count	Integer	0	Defines the maximum number of riders that can be riding this entity for this seat to be valid
min_rider_count	Integer	0	Defines the minimum number of riders that need to be riding this entity before this seat can be used
position	Vector [a, b, c]	[0.0, 0.0, 0.0]	Position of this seat relative to this entity's position
rotate_rider_by	Decimal	0.0	Offset to rotate riders by

minecraft:scaffolding_climber

Allows the player to detect and manuever on the scaffolding block.
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minecraft:scale_by_age

Defines the entity's size interpolation based on the entity's age.

Parameters

Name	Type	Default Value	Description
end_scale	Decimal	1.0	Ending scale of the entity when it's fully grown
start_scale	Decimal	1.0	Initial scale of the newborn entity

minecraft:shareables

Defines a list of items the mob wants to share. Each item must have the following parameters:

Parameters

Name

Type

Default Value

Description

items

List

List of items that the entity wants to share

craft_into

Defines the item this entity wants to craft with the item defined above. Should be an item name
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item

The name of the item
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surplus_amount

Number of this item considered extra that the entity wants to share
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want_amount

Number of this item this entity wants to share
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minecraft:shooter

Defines the entity's ranged attack behavior.

Parameters

Name	Type	Default Value	Description
auxVal	Integer	-1	ID of the Potion effect to be applied on hit
def	String		Entity definition to use as projectile for the ranged attack. The entity definition must have the projectile component to be able to be shot as a projectile

minecraft:sittable

Defines the entity's 'sit' state.

Parameters

Name	Type	Default Value	Description
sit_event	String		Event to run when the entity enters the 'sit' state
stand_event	String		Event to run when the entity exits the 'sit' state

minecraft:spawn_entity

Adds a timer after which this entity will spawn another entity or item (similar to vanilla's chicken's egg-laying behavior).

Parameters

Name	Type	Default Value	Description
min_wait_time	Integer	300	Minimum amount of time to randomly wait in seconds before another entity is spawned
max_wait_time	Integer	600	Maximum amount of time to randomly wait in seconds before another entity is spawned
spawn_sound	String	plop	Identifier of the sound effect to play when the entity is spawned
spawn_item	String	egg	Item identifier of the item to spawn
spawn_entity	String		Identifier of the entity to spawn, leave empty to spawn the item defined above instead
spawn_method	String	born	Method to use to spawn the entity
spawn_event	String	minecraft:entity_born	Event to call when the entity is spawned

minecraft:strength

Defines the entity's strength to carry items.

Parameters

Name	Type	Default Value	Description
max	Integer	5	The maximum strength of this entity
value	Integer	1	The initial value of the strength

minecraft:tameable

Defines the rules for a mob to be tamed by the player.

Parameters

Name	Type	Default Value	Description
probability	Decimal	1.0	The chance of taming the entity with each item use between 0.0 and 1.0, where 1.0 is 100%
tameItems	List		The list of items that can be used to tame this entity
tame_event	String		Event to run when this entity becomes tamed

minecraft:tamemount

Allows the Entity to be tamed by mounting it.

Parameters

Name

Type

Default Value

Description

attemptTemperMod

Integer

The amount the entity's temper will increase when mounted

autoRejectItems

JSON Object

The list of items that, if carried while interacting with the entity, will anger it

Name	Type	Default Value	Description
item	String		Name of the item this entity dislikes and will cause it to get angry if used while untamed

feedItems

JSON Object

The list of items that can be used to increase the entity's temper and speed up the taming process

Name	Type	Default Value	Description
item	String		Name of the item this entity likes and can be used to increase this entity's temper
temperMod	Decimal	0.0	The amount of temper this entity gains when fed this item

feed_text

String

The text that shows in the feeding interact button

maxTemper

Integer

100

The maximum value for the entity's random starting temper

minTemper

Integer

The minimum value for the entity's random starting temper

ride_text

String

The text that shows in the riding interact button

tame_event

String

Event that triggers when the entity becomes tamed

minecraft:target_nearby_sensor

Defines the entity's range within which it can see or sense other entities to target them.

Parameters

Name	Type	Default Value	Description
inside_range	Decimal	1.0	Maximum distance in blocks that another entity will be considered in the 'inside' range
on_inside_range	String		Event to call when an entity gets in the inside range. Can specify 'event' for the name of the event and 'target' for the target of the event
on_outside_range	String		Event to call when an entity gets in the outside range. Can specify 'event' for the name of the event and 'target' for the target of the event
outside_range	Decimal	5.0	Maximum distance in blocks that another entity will be considered in the 'outside' range

minecraft:teleport

Defines an entity's teleporting behavior.

Parameters

Name	Type	Default Value	Description
darkTeleportChance	Decimal	0.01	Modifies the chance that the entity will teleport if the entity is in darkness
lightTeleportChance	Decimal	0.01	Modifies the chance that the entity will teleport if the entity is in daylight
maxRandomTeleportTime	Decimal	20.0	Maximum amount of time in seconds between random teleports
minRandomTeleportTime	Decimal	0.0	Minimum amount of time in seconds between random teleports
randomTeleportCube	Vector [a, b, c]	[32.0, 16.0, 32.0]	Entity will teleport to a random position within the area defined by this cube
randomTeleports	Boolean	true	If true, the entity will teleport randomly
targetDistance	Decimal	16.0	Maximum distance the entity will teleport when chasing a target
target_teleport_chance	Decimal	1.0	The chance that the entity will teleport between 0.0 and 1.0. 1.0 means 100%

minecraft:tick_world

Defines if the entity ticks the world and the radius around it to tick.

Parameters

Name	Type	Default Value	Description
distance_to_players	Decimal	128	The distance at which the closest player has to be before this entity despawns. This option will be ignored if never_despawn is true. Min: 128 blocks.
never_despawn	Boolean	true	If true, this entity will not despawn even if players are far away. If false, distance_to_players will be used to determine when to despawn.
radius	Positive Integer	2	The area around the entity to tick. Default: 2. Allowed range: 2-6.

minecraft:timer

Adds a timer after which an event will fire.

Parameters

Name	Type	Default Value	Description
looping	Boolean	true	If true, the timer will restart every time after it fires
randomInterval	Boolean	true	If true, the amount of time on the timer will be random between the min and max values specified in time
time	Range [a, b]	[0.0, 0.0]	Amount of time in seconds for the timer. Can be specified as a number or a pair of numbers (min and max)
time_down_event	String		Event to fire when the time on the timer runs out

minecraft:trade_table

Defines this entity's ability to trade with players.

Parameters

Name	Type	Default Value	Description
display_name	String		Name to be displayed while trading with this entity
table	String		File path relative to the resource pack root for this entity's trades

minecraft:transformation

Defines an entity's transformation from the current definition into another

Parameters

Name

Type

Default Value

Description

add

JSON Object

List of components to add to the entity after the transformation

Name	Type	Default Value	Description
component_groups	List		Names of component groups to add

begin_transform_sound

String

Sound to play when the transformation starts

delay

JSON Object

Defines the properties of the delay for the transformation

Name	Type	Default Value	Description
block_assist_chance	Decimal	0.0	Chance that the entity will look for nearby blocks that can speed up the transformation. Value must be between 0.0 and 1.0
block_chance	Decimal	0.0	Chance that, once a block is found, will help speed up the transformation
block_max	Integer	0	Maximum number of blocks the entity will look for to aid in the transformation. If not defined or set to 0, it will be set to the block radius
block_radius	Integer	0	Distance in Blocks that the entity will search for blocks that can help the transformation
block_types	List		List of blocks that can help the transformation of this entity
keep_owner	Boolean		If this entity is owned by another entity, it should remain owned after transformation.
value	Decimal	0.0	Time in seconds before the entity transforms

drop_equipment

Boolean

Cause the entity to drop all equipment upon transformation

into

String

Entity Definition that this entity will transform into

transformation_sound

String

Sound to play when the entity is done transforming

minecraft:trusting

Defines the rules for a mob to trust players.

Parameters

Name	Type	Default Value	Description
probability	Decimal	1.0	The chance of the entity trusting with each item use between 0.0 and 1.0, where 1.0 is 100%
trust_event	String		Event to run when this entity becomes trusting
trust_items	List		The list of items that can be used to get the entity to trust players

Triggers

minecraft:on_death

Only usable by the Ender Dragon. Adds a trigger to call on this entity's death.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_friendly_anger

Adds a trigger that will run when a nearby entity of the same type as this entity becomes Angry.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_hurt

Adds a trigger to call when this entity takes damage.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_hurt_by_player

Adds a trigger to call when this entity is attacked by the player.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_ignite

Adds a trigger to call when this entity is set on fire.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_start_landing

Only usable by the Ender Dragon. Adds a trigger to call when this entity lands.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_start_takeoff

Only usable by the Ender Dragon. Adds a trigger to call when this entity starts flying.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_target_acquired

Adds a trigger to call when this entity finds a target.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_target_escape

Adds a trigger to call when this entity loses the target it currently has.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

minecraft:on_wake_with_owner

Adds a trigger to call when this pet's owner awakes after sleeping with the pet.

Parameters

Name	Type	Default Value	Description
event	String		The event to run when the conditions for this trigger are met
filters	Minecraft Filter		The list of conditions for this trigger
target	String	self	The target of the event

Built-in Events

Parameters

Name	Description
minecraft:entity_born	Event called on an entity that is spawned through two entities breeding.
minecraft:entity_spawned	Event called on an entity that is placed in the level.
minecraft:entity_transformed	Event called on an entity that transforms into another entity.
minecraft:on_prime	Event called on an entity whose fuse is lit and is ready to explode.

ID Lists

Parameters

Attributes

Parameters

JSON Name	ID
minecraft:attack	1651346034
minecraft:spell_effects	523264365
minecraft:strength	648564399

Properties

Parameters

JSON Name	ID
minecraft:ambient_sound_interval	-1314051310
minecraft:can_climb	-550459594
minecraft:can_fly	985724318
minecraft:can_power_jump	-763124853
minecraft:collision_box	-1277663508
minecraft:color	1069623177
minecraft:color2	0
minecraft:default_look_angle	-815556357
minecraft:equipment	714661022
minecraft:fire_immune	-1071767182
minecraft:floats_in_liquid	179778474
minecraft:flying_speed	-570508595
minecraft:foot_size	1133270874
minecraft:friction_modifier	-714364556
minecraft:ground_offset	-1816881803
minecraft:input_ground_controlled	-646415617
minecraft:is_baby	1853172763
minecraft:is_charged	125340337
minecraft:is_chested	-817599379
minecraft:is_dyeable	1381448355
minecraft:is_ignited	905710223
minecraft:is_saddled	1037901616
minecraft:is_shaking	523951884
minecraft:is_sheared	1154836813
minecraft:is_stackable	1184456737
minecraft:is_tamed	1646421078
minecraft:item_controllable	1868311069
minecraft:loot	1775814032
minecraft:mark_variant	663621689
minecraft:push_through	-138030768
minecraft:scale	77854436
minecraft:sound_volume	937951776
minecraft:type_family	-255011285
minecraft:variant	-1789583977
minecraft:walk_animation_speed	972393614
minecraft:wants_jockey	1832515141

Components

Parameters

JSON Name	ID
	0
minecraft:addrider	-1014528905
minecraft:ageable	1092934985
minecraft:angry	725411499
minecraft:boostable	-8316315
minecraft:breathable	-707187232
minecraft:breedable	-1616430100
minecraft:bribeable	0
minecraft:burns_in_daylight	1256874605
minecraft:damage_over_time	0
minecraft:damage_sensor	-82616534
minecraft:environment_sensor	687748970
minecraft:equippable	-1164142226
minecraft:explode	-1683058581
minecraft:genetics	-82484670
minecraft:giveable	1739199795
minecraft:healable	-54247424
minecraft:hurt_when_wet	237531867
minecraft:insomnia	-300455606
minecraft:interact	-1996861528
minecraft:inventory	1941951218
minecraft:item_hopper	-447601772
minecraft:jump.dynamic	945664737
minecraft:jump.static	1064987526
minecraft:leashable	893445039
minecraft:lookat	-1329707008
minecraft:movement.amphibious	0
minecraft:movement.basic	3354475
minecraft:movement.fly	-1487316136
minecraft:movement.generic	0
minecraft:movement.jump	1256268727
minecraft:movement.skip	-1828832272
minecraft:movement.sway	0
minecraft:nameable	-595398763
minecraft:navigation.climb	-1075360945
minecraft:navigation.float	-842998036
minecraft:navigation.fly	-1997823129
minecraft:navigation.generic	0
minecraft:navigation.swim	1908076634
minecraft:navigation.walk	1909033775
minecraft:peek	-863721039
minecraft:projectile	1922456869
minecraft:rail_movement	-78235634
minecraft:rail_sensor	1273161273
minecraft:rideable	1656173828
minecraft:scaffolding_climber	169799877
minecraft:scale_by_age	64881972
minecraft:shareables	1301057082
minecraft:shooter	184150118
minecraft:sittable	-1376274106
minecraft:spawn_entity	1991964333
minecraft:tameable	932870003
minecraft:tamemount	1615660288
minecraft:target_nearby_sensor	1309819882
minecraft:teleport	-1900891127
minecraft:tick_world	-381759296
minecraft:timer	1862095863
minecraft:trade_table	50480315
minecraft:transformation	-457894577
minecraft:trusting	936499892

Triggers

Parameters

JSON Name	ID
minecraft:on_death	-49357854
minecraft:on_friendly_anger	-1009986313
minecraft:on_hurt	-1028603471
minecraft:on_hurt_by_player	-599009831
minecraft:on_ignite	-1911489054
minecraft:on_start_landing	-555648368
minecraft:on_start_takeoff	426083399
minecraft:on_target_acquired	1063277906
minecraft:on_target_escape	-1373130027
minecraft:on_wake_with_owner	-1543219003

Data-Driven Spawning

Data-Driven spawning allows you to adjust the spawn conditions of mobs, including new mobs added to the game to spawn naturally in biomes, add / remove a mob's spawn egg to the creative inventory and set the mob's spawn egg, and add / remove a to the / summon command

Spawn Rules

Getting Started

New Spawn Rules are contained within a Behavior Pack. To begin, create a new folder named "spawn_rules" in the root of the Behavior Pack that you want to add the new biome spawn rules in. In the spawn_rules folder, create a JSON file and give it a name. The JSON file needs a format, description and conditions.Spawn rules contain description and conditionsAll Spawn Rules JSON need to have an ID (located under the description section). Similar to other identifiers, it follows the convention "namespace:name". The minecraft namespace is reserved for the vanilla Minecraft rules.When changing an existing mob use the ID that appears in the entity JSON for that entity. When creating your own mob, make sure the mobs have the same ID in all the entity's JSON files.

Spawn Rules also needs to define the pool that is used for population control.Each pool has their own spawn limit, By setting an entity to a pool it will spawn as long as that pool hasn't reached the spawn limit.

There are 3 pools that entities can be assigned to :
-animal
-water_animal
-monster
Back to top

Conditions

Conditions contain different components that players can use to customize natural biome spawning.

Components

Name

Description

minecraft:biome_filter

This component allows the players to specify which biomes the mob spawns in. Check below to see which Biome Tags exist, and what each biome is tagged as.

minecraft:brightness_filter

This component allows players to set the light level range that causes the mob to spawn.

Name	Type	Default Value	Description
adjust_for_weather	Boolean	false	This determines if weather can affect the light level conditions that cause the mob to spawn (e.g. Allowing hostile mobs to spawn during the day when it rains.)
max	Decimal	15.0	This is the maximum light level value that allows the mob to spawn
min	Decimal	0.0	This is the minimum light level value that allows the mob to spawn

minecraft:difficulty_filter

This component allows players determine what mobs spawn when certain difficulty levels are set.

Name	Type	Default Value	Description
max	String		This is the maximum difficulty level that a mob spawns
min	String		This is the minimum difficulty level that a mob spawns

minecraft:herd

This component allows players to determine the herd size of animals.

Name	Type	Description
event	String	This is an event that can be triggered from spawning
event_skip_count	Decimal	This is the number of mobs spawned before the specified event is triggered
max_size	Decimal	This is the maximum number of mobs that spawn in a herd
min_size	Decimal	This is the minimum number of mobs that spawn in a herd

minecraft:spawns_on_surface

This component allows the mob to spawn on the ground. Adding the component cause it to be true, removing it cause the mob to stop spawning on the surface.

minecraft:spawns_underwater

This component allows the mob to spawn underwater. Adding the component cause it to be true, removing it cause the mob to stop spawning on the surface.

minecraft:weight

This component allows players to give a priority to how often that mob should spawn. Mobs with lower weight values have a higher chance to spawn than mobs with higher weight values.

Name	Type	Default Value	Description
default	Decimal	0.0	This is the priority of the mob spawning

Biome Tags

Each biome in the game has one or more tags. These are used to determine what biomes mobs spawn in. Here is the list of Biome tags that can be used:

Tag
animal
beach
birch
cold
dark_oak
deep
desert
edge
extreme_hills
flower_forest
forest
frozen
hills
ice
ice_plains
jungle
lakes
lukewarm
mega
mesa
monster
mooshroom_island
mountain
mutated
nether
ocean
plains
plateau
river
roofed
savanna
shore
stone
swamp
taiga
the_end
warm

Tagged Biomes

Biome	Tags
Beach	monster, beach, warm
Birch Forest	animal, monster, birch, forest
Birch Forest Hills	animal, monster, birch, forest, hills
Birch Forest Hills M	animal, monster, forest, birch, mutated, hills
Birch Forest M	animal, monster, forest, birch, mutated
Cold Ocean	ocean, cold, monster
Cold Taiga M	animal, monster, taiga, cold, mutated
Dark Forest	animal, monster, forest, roofed
Dark Forest M	animal, monster, roofed, forest, mutated
Deep Cold Ocean	ocean, cold, monster, deep
Deep Frozen Ocean	ocean, frozen, monster, deep
Deep Lukewarm Ocean	ocean, lukewarm, monster, deep
Deep Ocean	ocean, monster, deep
Deep Warm Ocean	ocean, warm, monster, deep
Desert	monster, desert
Desert Hills	monster, desert, hills
Desert M	monster, desert, mutated
Forest	animal, monster, forest
Forest Hills	animal, monster, hills
Forest M	monster, flower_forest, forest, mutated
Frozen Ocean	ocean, frozen
Frozen River	river, frozen
Giant Tree Taiga	animal, monster, taiga, mega
Giant Tree Taiga Hills	animal, monster, taiga, mega, hills
Giant Tree Taiga Hills M	animal, monster, taiga, mega, hills, mutated
Giant Trees Taiga M	animal, monster, mutated, mega
Jungle	animal, monster, jungle
Jungle Edge	animal, monster, jungle, edge
Jungle Edge M	animal, monster, jungle, edge, mutated
Jungle Hills	animal, monster, jungle, hills
Jungle M	animal, monster, jungle, mutated
Lukewarm Ocean	ocean, lukewarm, monster
Mesa	monster
Mesa M	animal, monster, mesa, mutated
Mesa Plateau	monster, mesa
Mesa Plateau M	monster, mesa, plateau, mutated
Mesa Plateau Stone	monster, plataeu
Mesa Plateau Stone M	monster, mesa, plateau, mutated, stone
Mountain	animal, monster, extreme_hills
Mountain + M	animal, monster, extreme_hills, mutated, forest
Mountain Edge	animal, monster, extreme_hills, edge, mountain
Mountain M	animal, monster, extreme_hills, mutated
Mushroom Fields	mooshroom_island
Mushroom Fields Shore	mooshroom_island, shore
Nether	nether
Ocean	ocean, monster
Plains	animal, monster, plains
Plains M	animal, monster, plains, mutated
River	river
Savanna	animal, monster, savanna
Savanna M	animal, monster, savanna, mutated
Savanna Plateau	animal, monster, savanna
Savanna Plateau M	animal, monster, savanna, plateau, mutated
Snowy Beach	monster, beach, cold
Snowy Mountains	frozen, ice, mountain
Snowy Taiga	animal, monster, taiga, cold
Snowy Taiga Hills	animal, monster, taiga, cold, hills
Snowy Tundra	frozen, ice_plain, ice
Snowy Tundra M	monster, frozen, ice_plains, mutated
Stone Shore	monster, beach, stone
Swamp	animal, monster, swamp
Swamp M	animal, monster, swamp, mutated
Taiga	animal, monster, taiga
Taiga Hills	animal, monster, taiga, hills
Taiga M	animal, monster, taiga, mutated
The End	the_end
Warm Ocean	ocean, warm, monster
Wooded Mountain	animal, monster, extreme_hills, forest, mountain

Example Spawn Rules for the zombie

"format_version": "1.8.0",
  "minecraft:spawn_rules": {
    "description": {
      "identifier": "minecraft:zombie",
      "population_control": "monster"
    },
    "conditions": [
      {
        "minecraft:spawns_on_surface": {},
        "minecraft:brightness_filter": {
          "min": 0,
          "max": 7,
          "adjust_for_weather": true
        },
        "minecraft:difficulty_filter": {
          "min": "easy",
          "max": "hard"
        },
        "minecraft:weight": {
          "default": 100
        },
        "minecraft:herd": {
          "min_size": 2,
          "max_size": 4
        },
        "minecraft:permute_type": [
          {
            "weight": 95
          },
          {
            "weight": 5,
            "entity_type": "minecraft:zombie_villager"
          }
        ],
        "minecraft:biome_filter": {
          "test": "has_biome_tag", "operator": "==", "value": "monster"
        }
      }
    ]
  }

ID Lists

Component IDs

Parameters

Name	Type	Default Value	Description
minecraft.behavior.scared			0
minecraft:behavior.avoid_mob_type			386517767
minecraft:behavior.beg			1346418048
minecraft:behavior.break_door			-1798237626
minecraft:behavior.breed			51166360
minecraft:behavior.charge_attack			-1921442265
minecraft:behavior.circle_around_anchor			-698025586
minecraft:behavior.controlled_by_player			1633000292
minecraft:behavior.defend_village_target			1469600895
minecraft:behavior.door_interact			-286762735
minecraft:behavior.dragonchargeplayer			1808565780
minecraft:behavior.dragondeath			-1541162059
minecraft:behavior.dragonflaming			-865288877
minecraft:behavior.dragonholdingpattern			1066617362
minecraft:behavior.dragonlanding			-152352492
minecraft:behavior.dragonscanning			-1003941066
minecraft:behavior.dragonstrafeplayer			-1510265153
minecraft:behavior.dragontakeoff			-1912535317
minecraft:behavior.drop_item_for			1846615759
minecraft:behavior.eat_block			1972447274
minecraft:behavior.enderman_leave_block			-717580550
minecraft:behavior.enderman_take_block			-537294220
minecraft:behavior.find_mount			731306871
minecraft:behavior.find_underwater_treasure			-1602192311
minecraft:behavior.flee_sun			-617664229
minecraft:behavior.float			1758503000
minecraft:behavior.float_wander			-1122048364
minecraft:behavior.follow_caravan			9936402
minecraft:behavior.follow_mob			-1524701626
minecraft:behavior.follow_owner			1213259599
minecraft:behavior.follow_parent			2127040136
minecraft:behavior.go_home			-1579225026
minecraft:behavior.guardian_attack			-579215554
minecraft:behavior.harvest_farm_block			10843010
minecraft:behavior.hurt_by_target			-1710404297
minecraft:behavior.lay_down			-2074934675
minecraft:behavior.lay_egg			-1207740530
minecraft:behavior.leap_at_target			256926956
minecraft:behavior.look_at_entity			-1735428573
minecraft:behavior.look_at_player			-1892159379
minecraft:behavior.look_at_target			-885375871
minecraft:behavior.look_at_trading_player			-2094605693
minecraft:behavior.make_love			-1551283431
minecraft:behavior.melee_attack			1848335663
minecraft:behavior.mount_pathing			1112137677
minecraft:behavior.move_indoors			2107078532
minecraft:behavior.move_through_village			779377630
minecraft:behavior.move_to_land			-943551837
minecraft:behavior.move_to_water			1886139445
minecraft:behavior.move_towards_restriction			1288087401
minecraft:behavior.move_towards_target			-166537884
minecraft:behavior.nearest_attackable_target			-2032255557
minecraft:behavior.ocelot_sit_on_block			-1327999383
minecraft:behavior.ocelotattack			560197714
minecraft:behavior.offer_flower			-885387854
minecraft:behavior.open_door			-906200433
minecraft:behavior.owner_hurt_by_target			530667419
minecraft:behavior.owner_hurt_target			995655261
minecraft:behavior.panic			-169886247
minecraft:behavior.peek			211304085
minecraft:behavior.pet_sleep_with_owner			1379392240
minecraft:behavior.pickup_items			644287189
minecraft:behavior.play			-505601580
minecraft:behavior.player_ride_tamed			603869698
minecraft:behavior.raid_garden			-1145687602
minecraft:behavior.random_breach			928528911
minecraft:behavior.random_fly			-446385505
minecraft:behavior.random_look_around			1177762851
minecraft:behavior.random_sitting			1722716662
minecraft:behavior.random_stroll			-1643504294
minecraft:behavior.random_swim			-1465281278
minecraft:behavior.ranged_attack			-2093407250
minecraft:behavior.receive_love			1156694272
minecraft:behavior.restrict_open_door			715583988
minecraft:behavior.restrict_sun			-382716017
minecraft:behavior.roll			817471653
minecraft:behavior.run_around_like_crazy			-1390363669
minecraft:behavior.send_event			-823429137
minecraft:behavior.share_items			2045906118
minecraft:behavior.silverfish_merge_with_stone			321908121
minecraft:behavior.silverfish_wake_up_friends			484391748
minecraft:behavior.skeleton_horse_trap			530952387
minecraft:behavior.slime_attack			-1315951081
minecraft:behavior.slime_float			-1480876341
minecraft:behavior.slime_keep_on_jumping			-1844762087
minecraft:behavior.slime_random_direction			1437515506
minecraft:behavior.snacking			875141064
minecraft:behavior.sneeze			1528584076
minecraft:behavior.squid_dive			1626998843
minecraft:behavior.squid_flee			1304043261
minecraft:behavior.squid_idle			1741234679
minecraft:behavior.squid_move_away_from_ground			892387674
minecraft:behavior.squid_out_of_water			-1347598607
minecraft:behavior.stay_while_sitting			1346980478
minecraft:behavior.stomp_attack			-1851446496
minecraft:behavior.stomp_turtle_egg			851839416
minecraft:behavior.summon_entity			-2005850647
minecraft:behavior.swell			-1473132493
minecraft:behavior.swim_wander			-1576142514
minecraft:behavior.swoop_attack			770804235
minecraft:behavior.take_flower			1218648257
minecraft:behavior.tempt			422904556
minecraft:behavior.trade_with_player			-2048563493
minecraft:behavior.vex_copy_owner_target			-643459543
minecraft:behavior.vex_random_move			-1117822165
minecraft:behavior.wither_random_attack_pos_goal			-528895885
minecraft:behavior.wither_target_highest_damage			-1065562072

ADDONS DOCUMENTATION Version: 1.9.0.15

Index

AI Goals

minecraft.behavior.scared

Parameters

minecraft:behavior.avoid_mob_type

Parameters

minecraft:behavior.beg

Parameters

minecraft:behavior.break_door

minecraft:behavior.breed

Parameters

minecraft:behavior.charge_attack

minecraft:behavior.circle_around_anchor

Parameters

minecraft:behavior.controlled_by_player

minecraft:behavior.defend_village_target

Parameters

minecraft:behavior.door_interact

minecraft:behavior.dragonchargeplayer

minecraft:behavior.dragondeath

minecraft:behavior.dragonflaming

minecraft:behavior.dragonholdingpattern

minecraft:behavior.dragonlanding

minecraft:behavior.dragonscanning

minecraft:behavior.dragonstrafeplayer

minecraft:behavior.dragontakeoff

minecraft:behavior.drop_item_for

Parameters

minecraft:behavior.eat_block

Parameters

minecraft:behavior.enderman_leave_block

minecraft:behavior.enderman_take_block

minecraft:behavior.find_mount

Parameters

minecraft:behavior.find_underwater_treasure

Parameters

minecraft:behavior.flee_sun

Parameters

minecraft:behavior.float

minecraft:behavior.float_wander

Parameters

minecraft:behavior.follow_caravan

Parameters

minecraft:behavior.follow_mob

Parameters

minecraft:behavior.follow_owner

Parameters

minecraft:behavior.follow_parent

Parameters

minecraft:behavior.go_home

Parameters

minecraft:behavior.guardian_attack

minecraft:behavior.harvest_farm_block

Parameters

minecraft:behavior.hurt_by_target

Parameters

minecraft:behavior.lay_down

Parameters

minecraft:behavior.lay_egg

Parameters

minecraft:behavior.leap_at_target

Parameters

minecraft:behavior.look_at_entity

Parameters

minecraft:behavior.look_at_player

Parameters

minecraft:behavior.look_at_target

Parameters

minecraft:behavior.look_at_trading_player

Parameters

minecraft:behavior.make_love

minecraft:behavior.melee_attack

Parameters

minecraft:behavior.mount_pathing

Parameters

minecraft:behavior.move_indoors

Parameters

minecraft:behavior.move_through_village

Parameters

ADDONS DOCUMENTATION
Version: 1.9.0.15