Pocket Edition entity components

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Attributes[επεξεργασία | επεξεργασία κώδικα]

minecraft:health[επεξεργασία | επεξεργασία κώδικα]

Description
How much health the mob starts with. Units are in # of half hearts.
Parameters
Parameters Default Description
min 0 Lowest value for attribute. Rarely needed.
max MAX_FLOAT Upper value for attribute. Only really needed to clamp positive mob effects from going past this.
value 20.0 Starting value of attribute
Sample usage
"minecraft:health": {
  "value": 10.0
}
Entities used in
All mobs ( Attributes are always present, but will use default values if not specified )


minecraft:follow_range[επεξεργασία | επεξεργασία κώδικα]

Description
How far away the mob will stay from a target, in blocks,t that it is following (usually the owner).
Limitations
Can only be put on mobs
Parameters
Parameters Default Description
min 0 Lowest value for attribute. Rarely needed.
max 2048 Upper value for attribute. Only really needed to clamp positive mob effects from going past this. Maximum value is 2048
value 16.0 Starting value of attribute.
Sample usage
"minecraft:follow_range": {
  "value": 16.0
}
Entities used in
All mobs (Attributes are always present, but will use default values if not specified)


minecraft:knockback_resistance[επεξεργασία | επεξεργασία κώδικα]

Description
How much resistance is there against knockback effects. 0 mean no resistance, 1 means fully immune.
Limitations
Can only be put on mobs
Parameters
Parameters Default Description
min 0 Lowest value for attribute. Rarely needed.
max 1.0 Upper value for attribute. Only really needed to clamp positive mob effects from going past this.
value 0 Starting value of attribute
Sample usage
"minecraft:knockback_resistance": {
  "value": 0.5
}
Entities used in
All mobs (Attributes are always present, but will use default values if not specified)


minecraft:movement[επεξεργασία | επεξεργασία κώδικα]

Description
How fast the mob moves in the world. Units are blocks per tick, 20 ticks in a second. This means that a mob with 0.25 movement speed will run 5 blocks every second (20 ticks * 0.25 blocks per tick ).
Limitations
Can only be put on mobs
Parameters
Parameters Default Description
min 0 Lowest value for attribute. Rarely needed.
max MAX_FLOAT Upper value for attribute. Only really needed to clamp positive mob effects from going past this.
value 0.7 Starting value of attribute
Sample usage
"minecraft:movement": {
  "value": 0.3
}
Entities used in
All mobs (Attributes are always present, but will use default values if not specified)


minecraft:attack[επεξεργασία | επεξεργασία κώδικα]

Description
How much damage a melee attack will do, and controls status effects on hit
Parameters
Parameters Default Description
damage 2.0 How much damage melee attacks will do, in half hearts.
effect_name The name of the status effect to apply to the mob that is hit
effect_duration How long, in seconds, that the status effect lasts
Effect Name
speed
slowness
haste
mining_fatigue
strength
instant_heal
instant_damage
jump_boost
nausea
regeneration
resistance
fire_resistance
water_breathing
invisibility
blindness
night_vission
hunger
weakness
poison
wither
health_boost
absorption
saturation
Sample usage
"minecraft:attack": {
  "damage": 3.0,
  "effect_name": "hunger",
  "effect_duration": 30
}
Entities used in
All mobs (Attributes are always present, but will use default values if not specified)


minecraft:fall_damage[επεξεργασία | επεξεργασία κώδικα]

Description
Scales how much fall damage the mob takes when it falls. 0.5 is half damage, 2 is twice the amount of fall damage.
Entities used in
Parameters Default Description
min 0 Lowest value for attribute. Rarely needed.
max MAX_FLOAT Upper value for attribute. Only really needed to clamp positive mob effects from going past this.
value 1.0 Starting value of attribute
Sample usage
"minecraft:fall_damage": {
  "value": 0.5
}
Entities used in
All mobs (Attributes are always present, but will use default values if not specified)


Filters[επεξεργασία | επεξεργασία κώδικα]

All filters[επεξεργασία | επεξεργασία κώδικα]

Description
Filters are used in many components, including all triggers and events, and are used to control what entities are applicable in those contexts.
Parameters
Parameters Description
all_of A JSON object that is of type filter. Returns true if all of the filters inside of it is true.
any_of A JSON object that is of type filter. Returns true if at least one of the filters inside it is true
player_with_instabuild Checks if the player is in creative mode.
with_item Return true if any of the items listed is in the owning entity’s hands.
without_item Return true if all of the items listed aren’t in the owning entity’s hands.
with_armor Return true if any of the items listed are being worn by the owning entity
without_armor Return true if all of the items listed aren’t being worn by the owning entity
with_equipment Return true if all of the items listed are either in the hands or being worn by the owning entity.
without_equipment Return true if all of the items listed aren't in the hands or being worn by the owning entity.
with_components Returns true if the owning entity has all the components listed.
without_components Returns true if the owning entity has none of the components listed.
with_families Returns true if the owning entity has any of the families listed.
without_families Returns true if the owning entity has none of the families listed.
with_damage_cause Only valid in damage sensor trigger. Return true if damage is of type listed.
without_damage_cause Only valid in damage sensor trigger. Return true if damage isn't of type listed.
with_environment_any Return true if any of the environmental conditions listed exist in the owning entity’s surroundings
without_environment_any Return true if any of the environmental conditions listed do not exist in the owning entity’s surroundings.
with_environment_every Return true if all of the environmental conditions listed exist in the owning entity’s surroundings
without_environment_every Return true if all of the environmental conditions listed do not exist in the owning entity’s surroundings.
other_with_item Return true if any of the items listed is in the hands of the entity being filtered.
other_without_item Return true if all of the items listed aren't in the hands of the entity being filtered.
other_with_armor Return true if any of the items listed are being worn by entity being filtered.
other_without_armor Return true if all of the items listed aren't being worn by the entity being filtered.
other_with_equipment Return true if all of the items listed are either in the hands or being worn by the entity being filtered.
other_without_equipment Return true if all of the items listed aren't in the hands or being worn by the entity being filtered.
other_with_components Returns true if the entity being filtered has all the components listed.
other_without_components Returns true if the entity being filtered has none of the components listed.
other_with_families Returns true if the entity being filtered has any of the families listed.
other_without_families Returns true if the entity being filtered has none of the families listed.
target_with_item Return true if any of the items listed is in the owning entity's targets hands.
target_without_item Return true if all of the items listed aren't in the owning entity's targets hands.
target_with_armor Return true if any of the items listed are being worn by the owning entity's target.
target_without_armor Return true if all of the items listed aren't being worn by the owning entity's target.
target_with_equipment Return true if all of the items listed are either in the hands or being worn by the owning entity's target.
target_without_equipment Return true if all of the items listed aren't in the hands or being worn by the owning entity's target.
target_with_components Returns true if the owning entity's target has all the components listed.
target_without_components Returns true if the owning entity's target has none of the components listed.
target_with_families Returns true if the owning entity's target has any of the families listed.
target_without_families Returns true if the owning entity's target has none of the families listed.
Sample usage
"filters": {

"other_with_familes": ["player", "snowgolem", "irongolem"], "with_environment_any": [ "night", "underground" ] 

}
Entities used in
All Mobs


Environment filter conditions[επεξεργασία | επεξεργασία κώδικα]

Description
Environment filters used by the environment sensor component
Parameters
Conditions Description
underground
surface
day
night
brightness_less
brightness_greater
altitude_less
altitude_greater
biome
;Biomes
beach
desert
extreme_hills
flat
forest
the_nether
ice
jungle
mesa
mushroom_island
ocean
plain
river
savanna
stone_beach
swamp
taiga
the_end
Sample usage
"filters": {
  "with_environment_any": [ 
    "night", "brightness_less:0.49", "biome:desert" 
  ]
}


Triggers[επεξεργασία | επεξεργασία κώδικα]

Generic triggers[επεξεργασία | επεξεργασία κώδικα]

Description
Triggers are used in several components and are how you can send events either to this entity or to other entities.
Limitations
Valid target values vary on what component has the trigger.
Parameters
Parameters Default Description
event "" Name of event to send
target "self" Target of event. Valid values depend on context of trigger.
filters None Conditions for when trigger can fire. See [ Filters]
Sample usage
"minecraft:on_tamed": {
  "event": "convert_to_tamed",
  "target": "self"
}
Entities used in
Almost all mobs use these


Standalone triggers[επεξεργασία | επεξεργασία κώδικα]

Description
These are triggers that aren’t embedded in any other component and are added to an entity just like any other component.
Parameters
Parameters Description
minecraft:on_target_acquired Fires whenever the entity gets a new valid target
minecraft:on_target_escape Fires whenever the entity loses its current target
minecraft:on_hurt_by_player Fires whenever the entity is hurt by a player
minecraft:on_hurt Fires whenever the entity takes damage from any source, even if other triggers for hurt have already been triggered
minecraft:on_ignite Fired when this entity takes burn damage
Sample usage
"minecraft:on_ignite": {
  "event": "add_primed",
  "target": "self"
}
Entities used in
Creeper along with various others


Components[επεξεργασία | επεξεργασία κώδικα]

minecraft:is_baby[επεξεργασία | επεξεργασία κώδικα]

Description
Makes the mob render with an extra-large head
Limitations
Currently only renders correctly if minecraft:scale is 0.5. Only has an effect on the mobs listed below.
Sample usage
"minecraft:is_baby": { }
Entities used in
Zombie, Chicken, Sheep, Ocelot, Wolf, Cow, Mooshroom, Pig


minecraft:scale[επεξεργασία | επεξεργασία κώδικα]

Description
Scale the size of the entity. Will automatically adjust [ collision_box] and riding positions.
Limitations
Scale value must be positive.
Parameters
Parameters Default Description
value 1.0 Multiplier against the default size of the entity.

1.0 means no effect, 0.5 means half normal size, 2.0 means double normal size

Sample usage
"minecraft:scale": {
  "value": 2.0
}
Entities used in
All mobs with is_baby component: Zombie, Chicken, Sheep, Ocelot, Wolf, Cow, Mooshroom, Pig


minecraft:is_stackable[επεξεργασία | επεξεργασία κώδικα]

Description
Controls whether this entity can stack with other entities of the same type.
Parameters
Parameters Default Description
value false If true, then this will collide with other entities of the same type
Sample usage
"minecraft:can_stack": {
  "value": true
}
Entities used in
Minecart


minecraft:collision_box[επεξεργασία | επεξεργασία κώδικα]

Description
Set the width and the height of the collision box of the entity. NOTE: The actual runtime scale is adjusted by the entities current scale set with either[ minecraft:scale] or minecraft:scale_with_age.
Limitations
Width and length are controlled by the same value which is currently an engine limitation.
Parameters
Parameters Default Description
width 1.0 Width and length of the collision box. 1.0 is the same size as a block
height 1.0 Height of the collision box. 1.0 is the same size as a block
Sample usage
"minecraft:collision_box": {
  "width": 0.8,
  "height": 1.8
}
Entities used in
All entities.


minecraft:identifier[επεξεργασία | επεξεργασία κώδικα]

Description
Set a string identifier for the entity. This is a required component on all entities and must be in the components section of the entity.
Limitations
Currently, the only valid values are those in use in the game already. Also, changing the identifier through the component groups is not supported.
Parameters
Parameters Default Description
id "" Name to identify this entity with
Sample usage
"minecraft:identifier": {
  "id": "minecraft:wolf"
}
Entities used in
All Entities


minecraft:hurt_when_wet[επεξεργασία | επεξεργασία κώδικα]

Description
The entity will take damage when touching water blocks, or being exposed to rain
Parameters
Parameters Default Description
value false When true, the entity will take damage from water blocks or when exposed to the rain.
Sample usage
"minecraft:hurt_when_wet": {
  "value": true
}
Entities used in
  • Blaze
  • Enderman


minecraft:type_family[επεξεργασία | επεξεργασία κώδικα]

Description
Sets a list of tags that can be used for filtering from other components, events and triggers.
Parameters
Parameters Default Description
family empty List of strings
Sample usage
"minecraft:type_family": {
 "family": ["zombie", "monster", "undead"]
}
Entities used in
All entities.


minecraft:ageable[επεξεργασία | επεξεργασία κώδικα]

Description
Adds a timer to the entity that will fire a trigger at the end of it. The timer can be accelerated by giving it items the entity likes to eat.
Parameters
Parameters Default Description
duration 1.0 Time in seconds before trigger activates
grow_up Trigger that is fired when duration is reached
feedItems List
item "" Name of item when if fed, it will remove growth seconds from duration
growth 0.0 Amount of seconds removed from duration
Sample usage
"minecraft:ageable": {
  "duration": 1200,
  "grow_up": {
    "event": "on_grow_up",
    "target": "self"
  },
  "feedItems": [
    {
      "item": "carrot",
      "growth": 30
    }
  ]
}
Entities used in
Chicken, Cow, Horse, Mule, Donkey, Mooshroom, Ocelot, Pig, Rabbit, Sheep, Villager, Wolf


minecraft:timer[επεξεργασία | επεξεργασία κώδικα]

Description
General purpose time down component that fires an event upon time elapse.
Parameters
Parameters Default Description
time [1.0, 3.0] Time in seconds before trigger activates. Can be a single number or range like in the default.
looping true Will restart the timer when elapsed if set
randomInterval true If true, the time will randomize between the min and max values of time
time_down_event trigger Fired when time is fully elapsed
Sample usage
"minecraft:timer": {
  "time": [1, 3],
  "looping": false,
  "time_down_event": {
    "event": "on_time_elapsed",
    "target": "self"
  }
}
Entities used in
None.


minecraft:teleport[επεξεργασία | επεξεργασία κώδικα]

minecraft
teleport
Description
Makes a mob teleport depending on some condition, whether that be random or when chasing a target.
Parameters
Parameters Default Description
randomTeleports true Does the entity randomly teleport or not
minRandomTeleportTime 0.0 Minimum time in seconds before next random teleport
maxRandomTeleportTime 20.0 Maximum time in seconds before next random teleport
randomTeleportCube [32.0, 16.0, 32.0] Area around entity where random teleport will go to
targetDistance 16.0 When chasing a target, the distance at which the entity decides to teleport closer to the target
lightTeleportChance 0.01 Additional chance of teleporting in daylight. Range of 0 to 1
darkTeleportChance 0.01 Additional chance of teleporting in darkness. Range of 0 to 1
generatesBubbles
Sample usage
"minecraft:teleport": {
  "randomTeleports": true,
  "minRandomTeleportTime": 0,
  "maxRandomTeleportTime": 30,
  "randomTeleportCube": [32, 32, 32],
  "targetDistance": 16,
  "lightTeleportChance": 0.01,
  "darkTeleportChance": 0.0
}
Entities used in
Enderman


minecraft:breathable[επεξεργασία | επεξεργασία κώδικα]

Description
Allows the entity to take damage by suffocation. Able to define what blocks an entity can breathe in.
Limitations
Only works on mobs.
Parameters
Parameters Default Description
totalSupply 15 Time in seconds the entity can hold their breath
suffocateTime -20 Number of seconds between suffocation damage
breathesAir true If true, can breathe in blocks considered to be air
breathesWater false If true, can breathe in water blocks
breathesLava false If true, can breathe in lava blocks
breathesSolids false If true, can breathe in solid blocks
breatheBlocks [] List of blocks that can be breathed in, in addition to the above flags
nonBreatheBlocks [] List of blocks that can’t be breathed in, in addition to the above flags
generatesBubbles True If true, will display water bubbles
Sample usage
"minecraft:breathable": {
  "totalSupply": 15.0,
  "suffocateTime": -1,
  "breathesAir": false,
  "breathesWater": true,
  "breathesLava": false,
  "breathesSolids" false,
  "breatheBlocks": ["glass", "cobblestone"],
  "nonBreatheBlocks": ["cobblestone"]
}
Entities used in
Player, Squid


minecraft:breedable[επεξεργασία | επεξεργασία κώδικα]

Description
Allows interactions with a mob to enable its "love" state. Also, handles birth of child depending on breed type when engaged.
Parameters
Parameters Default Description
requireTame true Does the mob, and the mob it is going to breed with, need to be tamed before you can breed them
extraBabyChance 0.0 0 to 1, chance that up to 16 babies can be spawned
breedCooldown 60 Time in seconds before can be bred again
breedItems List Items that will trigger "love" mode
breedsWith List List of acceptable mates
mateType "" Entity identifier of mate type
babyType "" Entity identifier of baby to spawn
breed_event Trigger Trigger fired when baby is born. Target can be baby if you want event sent to the baby instead
inheritTamed true If true, the baby that is spawned, will be tamed if its parents are tamed.
Sample usage
"minecraft:breedable": {
  "requireTame": true,
  "extraBabyChance": 0.0,
  "breedCooldown": 30,
  "breedItems": ["carrot"],
  "breedsWith": [
    {
      "mateType": "minecraft:rabbit",
      "babyType": "minecraft:rabbit",
      "breed_event": {
        "event": "on_bred",
        "target": "self"
      }
    }
  ]
}
Entities used in
Chicken, Cow, Mooshroom, Ocelot, Pig, Rabbit, Sheep, Wolf


minecraft:foot_size[επεξεργασία | επεξεργασία κώδικα]

Description
Sets how large of a step, in blocks, that something can step over.
Parameters
Parameters Default Description
value 0.5 Number of blocks you can step up onto without jumping
Sample usage
"minecraft:foot_size": {
  "value": 0.5
}
Entities used in
Horse, Mule, Donkey, Enderman


minecraft:height_offset[επεξεργασία | επεξεργασία κώδικα]

Description
Sets a vertical offset, in blocks, for the entity position relative to origin of the entity.
Parameters
Parameters Default Description
value 0.5 The vertical offset amount, in blocks
Sample usage
"minecraft:height_offset": {
  "value": 0.5
}
Entities used in
Player, Boat, TripodCamera


minecraft:inherit_rotation_when_riding[επεξεργασία | επεξεργασία κώδικα]

Description
Do the riders on this entity use the same rotation as this entity.
Limitations
Requires [ minecraft:rideable] component to have any effect.
Parameters
Parameters Default Description
value false If true, the rider will rotate to face the same direction as this entity
Sample usage
"minecraft:inherit_rotation_when_riding": {
  "value": true  
}
Entities used in
Boat


minecraft:boostable[επεξεργασία | επεξεργασία κώδικα]

Description
Allows the player to briefly boost the movement speed of their ride with a specific item. The boost item can also specify a replacement item for when the item is depleted.
Limitations
Requires [ minecraft:rideable] component to have any effect.
Parameters
Parameters Default Description
duration 3.0 The duration of the boost in seconds
speed_multiplier 1.0 A speed multiplier that can boost movement. A value of 2.0 will make this entity move twice as fast as normal
boost_items [] An array of items that can be used to cause the boost
item "" The name of the item that will cause the boost
damage 1 The amount of damage to apply to an item when it is used
replaceItem "" The name of the item that will replace the boost item with a new item when it is depleted
Sample usage
"minecraft:boostable": {
  "speed_multiplier": 2.0,
  "duration": 3.0,
  "boost_items": [
    {
      "item": "carrotOnAStick",
      "damage": 2,
      "replaceItem": "fishing_rod"
    }
  ]
}
Entities used in
Pig


minecraft:equippable[επεξεργασία | επεξεργασία κώδικα]

Description
Allows for interaction and triggers to fire when an item is equipped or unequipped from an entity. Used for horses equipping and unequipping saddles
Limitations
Only works for Horse right now.
Parameters
Parameters Default Description
slots [] An array of items that can be equipped
item "" The name of the item that can be equipped
interact_text "" The text that will display for the equip action
on_equip A trigger that will call the specified event when the item is equipped
on_unequip A trigger that will call the specified event when the item is unequipped
Sample usage
"minecraft:equippable": {
  "slots": [
    {
      "item": "saddle",
      "interact_text": "action.interact.saddle",
      "on_equip": {
        "event": "minecraft:on_saddled",
        "target": "self"
      },
      "on_unequip": {
        "event": "minecraft:on_unsaddled",
        "target": "self"
      }
    }
  ]
}
Entities used in
Horses


minecraft:interact[επεξεργασία | επεξεργασία κώδικα]

Description
Defines interactions and responses that include changing the currently held item, spawning an entity, and invoking events on the interacting entity. This component can be defined as a single object interaction, or an array of interaction objects.
Parameters
Parameters Default Description
cooldown 0.0 The cooldown, in seconds, before the interaction may be used again
use_item false If true, interacting with this item will use the item
hurt_item 0 The damage value to apply to the item when it is used
interact_text "" The text that displays for the interaction
transform_to_item "" The name of the item to transform the item used to interact into. The format for this is "name of item:id"
play_sounds "" Either a single string or an array of strings of the sounds to trigger when the interaction occurs
spawn_entities "" Either a single entity or an array of entities to spawn when the interaction occurs
on_interact An event called when the interaction occurs
add_items An array of item names, or a specified loot table to place in the player’s inventory
spawn_items An array of item names or a specified loot table of items to spawn in the world upon interaction
Sample usage
"minecraft:interact": [
  {
    "cooldown": 1.0,
    "use_item": "true",
    "hurt_item": 0,
    "interact_text": "action.interact.milk",
    "transform_to_item": "bucket:1",
    "play_sounds": [ "mob.sound.foo", "mob.sound.bar" ],
    "spawn_entities": { "minecraft:creeper" }
    "on_interact": {
      "event": "minecraft:do_a_thing",
      "target": "self"
    },
    "add_items": { "table": "loot.tables.stuff" },
    "spawn_items": [ "red_mushroom", "red_mushroom" ]
  }
]
Entities used in
Cow, Mooshroom, Sheep, Zombie Villager


minecraft:leashable[επεξεργασία | επεξεργασία κώδικα]

Description
Allows a mob to be leashed.
Parameters
Parameters Default Description
soft_distance 4.0 The distance at which the spring effect starts acting to keep the mob close
hard_distance 6.0 The distance at which the spring stiffness constant increases
max_distance 10.0 The distance at which the leash breaks
on_leash A trigger that will call the specified event when the entity is leashed
on_unleash A trigger that will call the specified event when the entity is unleashed
Sample usage
"minecraft:leashable": {
  "soft_distance": 4.0,
  "hard_distance": 6.0,
  "max_distance": 10.0,
  "on_leash": {
    "event": "minecraft:on_leash",
    "target": "self"
  },
  "on_unleash": {
    "event": "minecraft:on_unleash",
    "target": "self"
  }
}
Entities used in
Chicken, Cow, Mooshroom, Iron Golem, Ocelot, Pig, Rabbit, Sheep, Snow Golem, Squid, Wolf


minecraft:lookat[επεξεργασία | επεξεργασία κώδικα]

Description
Handles triggers and target management for when any mob looks at this entity.
Parameters
Parameters Default Description
setTarget true If true, this entity will set its target to the player if there isn’t a target currently set
searchRadius 10.0 The maximum search distance to look for a player target
mAllowInvulnerable false If true, allows the entity to target players in creative mode
look_event A trigger that will call the specified event when the player looks at this entity
filters Controls what mobs can trigger this component
Sample usage
"minecraft:lookat": {
  "setTarget": true,
  "searchRadius": 10.0,
  "mAllowInvulnerable": false,
  "look_event": {
    "event": "minecraft:entity_angry",
    "target": "self"
  }
}
Entities used in
Enderman


minecraft:nameable[επεξεργασία | επεξεργασία κώδικα]

Description
Allows a mob to be named using a nametag and provides corresponding events to when a mob acquires a particular name.
Parameters
Parameters Default Description
name_filter "" A string or array of strings that specify names that will fire an event when an entity is named
on_named A trigger that will call the specified event when this entity is named a name in the name_filter.
Sample usage
"minecraft:nameable": {
  "name_actions": {
    "name_filter": "TheAdrian",
    "on_named": {
      "event": "minecraft:explode",
      "target": "self"
    }
  }
}
Entities used in
Cave Spider, Chicken, Cow, Creeper, Enderman, Ghast, Guardian, Elder Guardian, Iron Golem, Magma Cube, Mooshroom, Ocelot, Pig, Rabbit, Sheep, Silverfish, Skeleton, Slime, Snow Golem, Spider, Squid, Wolf, Zombie, Zombie Husk, Zombie Pigman


minecraft:addrider[επεξεργασία | επεξεργασία κώδικα]

Description
Component that adds a rider to this entity.
Limitations
Requires minecraft:rideable to have any effect.
Parameters
Parameters Default Description
entity_type "" The minecraft:identifier of the entity type that will be added as a rider
Sample usage
"minecraft:addrider": {
  "entity_type": "minecraft:skeleton"
}
Entities used in
Spider, Cave Spider


minecraft:tamemount[επεξεργασία | επεξεργασία κώδικα]

Description
Used to tame a mob by "breaking it in" or mounting it.
Parameters
Parameters Default Description
minTemper 0 The minimum starting temper for this entity. The beginning entity temper is a random number between minTemper and maxTemper
maxTemper 100 The maximum starting temper for this entity. The beginning entity temper is a random number between minTemper and maxTemper
attemptTemperMod 5 The amount to increase this entity’s temper by when attempting to mount this entity
feedItems [] An array of items that can be used to increase the temper of this entity
item "" The name of the item that can be fed to this entity to increase temper
temperMod The amount this food increases temper
tame_event A trigger that calls the specified event when this entity’s temper is greater than a random chosen number between minTemper and maxTemper
Sample usage
"minecraft:tamemount": {
  "minTemper": 0,
  "maxTemper": 100,
  "attemptTemperMod": 5,
  "feedItems": [
    {
      "item": "wheat",
      "temperMod": 3
    },
    {
      "item": "golden_apple",
      "temperMod": 10
    }
  ], 
  "tame_event": {
    "event": "minecraft:on_tame",
    "target": "self"
  }
}
Entities used in
Horse


minecraft:damage_sensor[επεξεργασία | επεξεργασία κώδικα]

Description
Used to call events when this entity is damaged by specific entities or items, as specified with filters.
Parameters
Parameters Default Description
on_damage Trigger or trigger array that specifies events to call when taking specific types of damage
deals_damage true If false, the damage that triggers this event will not deal damage to this entity
Sample usage
"minecraft:damage_sensor": {
  "on_damage": {
    "filters": {
      "other_with_families": "lightning"
    },
    "event": "minecraft:become_charged"
  },
  "deals_damage": false
}
Entities used in
Pig, Creeper, Villager


minecraft:environment_sensor[επεξεργασία | επεξεργασία κώδικα]

Description
Used to create triggers that will call events depending on the environment conditions. See Environment Filter Conditions for details.
Parameters
Parameters Default Description
on_environment Trigger that is fired when the environment conditions match criteria
filters List of filters to use to determine when to fire off an event
event The event to call when the filter conditions are true
Sample usage
"minecraft:environment_sensor": {
  "on_environment": {
    "filters": { "with_environment_any": "brightness_less:0.49" },
    "event": "minecraft:become_hostile"
  }
}
Entities used in
Spider, Cave Spider


minecraft:tameable[επεξεργασία | επεξεργασία κώδικα]

Description
Handles interactions between a player and a mob to become tame.
Parameters
Parameters Default Description
probability 1.0 The chance of taming for each use of the tame item. This number can be anything within the range of 0, to 1, where 0 is 0% chance and 1 is 100% chance.
tameItems "" A string or a string array of the name of the item that can be used to tame this mob
tame_event A trigger that calls the specified event when this entity becomes tame
Sample usage
"minecraft:tameable": {
  "probability": 0.33,
  "tameItems": "bone",
  "tame_event": {
    "event": "minecraft:on_tame",
    "target": "self"
  }
}
Entities used in
Ocelot, Wolf


minecraft:target_nearby_sensor[επεξεργασία | επεξεργασία κώδικα]

Description
Triggers depending on whether a target has entered or has left a specified range.
Parameters
Parameters Default Description
inside_range 1.0 The maximum number of blocks that a target can be from this entity and be considered in the inside_range
outside_range 5.0 The minimum number of blocks that a target can be from this entity and be considered to be in the outside_range
on_inside_range A trigger that calls the specified event when a target is closer that inside_range blocks
on_outside_range A trigger that calls the specified event when a target is further than outside_range blocks
Sample usage
"minecraft:target_nearby_sensor": {
  "inside_range": 5,
  "outside_range": 10,
  "on_inside_range": {
    "event": "start_swell",
    "target": "self"
  },
  "on_outside_range": {
    "event": "stop_swell",
    "target": "self"
  }
}
Entities used in
Creeper


minecraft:transformation[επεξεργασία | επεξεργασία κώδικα]

Description
Handles transformation of an entity into another entity.
Parameters
Parameters Default Description
into "" The minecraft:identifier of the entity to transform into
delay 0 The time in seconds to wait before transforming
block_assist_chance 0 The chance to check if there are any special blocks surrounding this entity that can speed up the transformation. Any number between 0 and 1 is valid.
block_radius 0 The distance, in blocks, to search for blocks that can help speed up the transformation
block_max 0 The maximum number of special blocks to use for speeding up the transformation
block_chance 0 The chance that a special block will help speed up the transform
block_types "" A string or array of strings of the blocks that can help speed up the transformation
Sample usage
"minecraft:transformation": {
  "into": "minecraft:villager",
  "delay": {
    "value": 100,
    "block_assist_chance": 0.01,
    "block_radius": 4,
    "block_chance": 0.3,
    "block_types": [
      "minecraft:bed",
      "minecraft:iron_bars"
    ]
  }
}
Entities used in
Pig, Villager, Mooshroom, Zombie Villager


minecraft:shooter[επεξεργασία | επεξεργασία κώδικα]

Description
Handles launching a projectile at this entity’s target.
Limitations
Can only shoot predefined projectile types (arrows, large and small fireballs
Parameters
Parameters Default Description
count 1 The number of projectiles to spawn
def "" The minecraft:identifier of the projectile to shoot
auxVal 0 The id of the potion effect to apply on hit effects
Type
arrow
largefireball
smallfireball
Sample usage
"minecraft:shooter": {
  "type": "largefireball",
  "def": "minecraft:fireball.large"
}
Entities used in
Skeletons, Ghasts, Blaze


minecraft:projectile[επεξεργασία | επεξεργασία κώδικα]

Description
Component to describe a projectile like an Arrow or Fireball.
Parameters
Parameters Default Description
gravity Acceleration due to gravity on this projectile
damage The base damage from getting hit with this projectile
semirandomdiffdamage If true, randomizes damage based on base damage and hit speed
inertia Scalar that is multiplied with projectile’s velocity each frame
liquid_inertia Scalar to multiply projectile’s velocity with each frame when in water
knockback If true, on impact, the projectile will push back the entity it hit
anchor The position to create the projectile at, relative to this entity’s position, eye level, or center of mass
offset Offset form the anchor position to create the projectile at
power The velocity of the projectile
angleoffset Specifies an upward angle at which to launch the projectile. Used to create a parabolic trajectory
uncertaintyBase The base number to adjust accuracy with using the function: uncertaintyBase – difficultyLevel * uncertaintyMultiplier
uncertaintyMultiplier The number to multiply the difficultyLevel by when calculating accuracy
shoottarget
onHit A JSON object that specifies what to do when the projectile hits an entity
commands An array of strings specifying events to call on hit. Used for things like impact damage, status effects, etc.
event The event to call when this projectile hits an entity
douse_fire {} If specified, this projectile will put out fires
teleport_owner {} If specified, this projectile will teleport the owner to its location on hit
remove_on_hit
spawnChance A JSON object that will spawn an entity
spawnMob "" Name of mob to spawn
spawnDefinition "" The minecraft:identifier of the mob to spawn
firstSpawnChance Used in formula for determining spawn chances
secondSpawnChance Used in formula for determining spawn chances
firstSpawnCount Used in formula for determining spawn chances
secondSpawnCount Used in formula for determining spawn chances
spawnBaby Spawn the mob as a baby.
potionEffect A JSON object that defines a potion effect to apply
potionEffect The effect index for potion to apply
splashRange Range of splash effect in blocks
splashPotion If True, triggers splash effect, otherwise the potion effect only applies to the hit mob
durationeasy The amount of time in seconds that the potion effect is applied for with the game set to easy
durationnormal The amount of time in seconds that the potion effect is applied for with the game set to normal
durationhard The amount of time in seconds that the potion effect is applied for with the game set to hard
impactDamage A JSON object that specifies damage and effects upon impact
filters Filter used to specify entities that can’t be damaged by the impact
catchFire If true, the entity will be set on fire
onFireTime The amount of time, in seconds, that the entity will be on fire for
grant_xp JSON Object used to grant experience with a projectile
minXP The minimum amount of experience to give
maxXP The maximum amount of experience to give
Formula for spawn chance
if(nextInt(firstSpawnChance) === 0) {
  spawnCount == nextInt(secondSpawnChance) === 0 ? secondSpawnCount : firstSpawnCount;
}
Assuming firstSpawnChance == 100, secondSpawnChance == 200, secondSpawnCount == 4, firstSpawnCount == 1 the following is true:
There is a 1 in 100 chance to spawn a mob, when we do, there is an additional 1 in 200 chance to spawn 4 mobs. If that 1 in 200 chance fails, we will only spawn 1.
Sample usage
"minecraft:projectile": {
  "onHit": {
    "definition_event": {
      "affectProjectile": true,
      "eventTrigger": {
        "event": "minecraft:explode",
        "target": "self"
      }
    },
    "potion_effect": {
      "effect": 36,
      "durationeasy": 0,
      "durationnormal": 200,
      "durationhard": 800
    }
  },
  "power": 1.2,
  "gravity": 0.00,
  "uncertaintyBase": 7.5,
  "uncertaintyMultiplier": 1,
  "shootSound": "bow",
  "hitSound": "bow.hit",
  "anchor": 1,
  "offset": [ 0, -0.1, 0 ],
  "inertia": 1.0,
  "liquid_inertia": 1.0,
  "shoottarget": false
}
Entities used in
Arrow, Large Fireball, Small Fireball, FishingHook, Thrown Egg, Thrown Ender Pearl, Thrown Potion, Wither Skull, Wither Skull Dangerous, XP Potion


minecraft:angry[επεξεργασία | επεξεργασία κώδικα]

Description
Component that manages a mob’s anger state. Anger will reset anger time upon a successful attack or when hurt by target.
Parameters
Parameters Default Description
duration 25 The time, in seconds, that the entity will remain angry after damaging the target. If negative, the entity will remain angry until it loses its target
broadcastAnger false If true, other untamed entities of the same type within broadcastRange blocks, will also become angry when this entity becomes angry
broadcastRange 20 The distance around this entity, in blocks, to broadcast this entity’s anger to other entities
calm_event Triggers the specified event after duration seconds since becoming angry
Sample usage
"minecraft:angry": {
  "duration": 25,
  "broadcastAnger": true,
  "broadcastRange": 20,
  "calm_event": {
    "event": "minecraft:on_calm",
    "target": "self"
  }
}
Entities used in
Cave Spider, Enderman, Silverfish, Spider, Wolf


minecraft:healable[επεξεργασία | επεξεργασία κώδικα]

Description
Manages interactions between mob and player for the purpose of healing the mob.
Limitations
Only usable on entities that have health
Parameters
Parameters Default Description
items Array of items that can be given to heal this entity
item "" Name of item that can be used
heal_amount 1.0 The amount that this item will heal when used
Sample usage
"minecraft:healable": {
  "items": [
    { "item": "porkchop", "heal_amount": 5.0 },
    { "item": "cooked_rabbit", "heal_amount": -2.0 }
  ]
}
Entities used in
Wolf


minecraft:sittable[επεξεργασία | επεξεργασία κώδικα]

Description
Handles interaction with the player to toggle the sit state on a mob.
Limitations
Currently sitting animation only works with Ocelot and Wolf mobs.
Parameters
Parameters Default Description
sit_event Triggers the specified event when this entity sits
stand_event Triggers the specified event when this entity stands up from sitting
Sample usage
"minecraft:sittable": {
  "sit_event": {
    "event": "minecraft:on_sit",
    "target": "self"
  },
  "stand_event": {
    "event": "minecraft:on_stand",
    "target": "self"
  }
}
Entities used in
Ocelot, Wolf


minecraft:rideable[επεξεργασία | επεξεργασία κώδικα]

Description
Determines whether or not an entity can mount the owning entity as a rider. It is possible to specify different seat positions depending on the number of entities riding this entity.
Parameters
Parameters Default Description
seat_count 1 The number of entities that can ride on this entity at a time
interact_text "" The text that will display when an interaction is possible
family_types An array of minecraft:identifiers that specify what types of entities can ride this entity
seats An array of seat positions
position [0.0, 0.5, 0.0] The position of the seat relative to this entity’s position. Values are given in blocks in each direction: x, y, then z
min_rider_count The minimum amount of riders for this seat to be used
max_rider_count The maximum amount of riders for this seat to be used
rotate_rider_by An offset to rotate the riders by
lock_rider_rotation The amount, in degrees that a rider can rotate
Sample usage
"minecraft:rideable": {
  "seat_count": 2,
  "interact_text": "action.interact.ride.boat",
  "seats": [
    {
      "position": [0.0, 0.0, 0.0],
      "min_rider_count": 0,
      "max_rider_count": 1,
      "rotate_rider_by": -90,
      "lock_rider_rotation": 90
    },
    {
      "position": [0.2, 0.0, 0.0],
      "min_rider_count": 2,
      "max_rider_count": 2,
      "rotate_rider_by": -90,
      "lock_rider_rotation": 90
    },
    {
      "position": [ -0.6, 0.0, 0.0],
      "min_rider_count": 2,
      "max_rider_count": 2,
      "lock_rider_rotation": 90
    }
  ]
}
Entities used in
Boat, Cave Spider, Minecart, Pig, Spider, Zombie


minecraft:scale_by_age[επεξεργασία | επεξεργασία κώδικα]

Description
Interpolates an entity’s scale based on age.
Limitations
Requires minecraft:ageable component to have an effect
Parameters
Parameters Default Description
start_scale 1.0 The initial scale of the entity
end_scale 1.0 The end scale of the entity
Sample usage
"minecraft:scale_by_age": {
  "start_scale": 1.0,
  "end_scale": 1.5
}
Entities used in
Horse, Mule, Donkey


minecraft:rail_movement[επεξεργασία | επεξεργασία κώδικα]

Description
Restricts an entity's movement to rails.
Parameters
Parameters Default Description
max_speed 0.4 The maximum speed of this entity while riding a rail
Sample usage
"minecraft:rail_movement": {
  "max_speed": 20.0f
}
Entities used in
Minecart, Minecart Chest, Minecart Hopper, Minecart TNT


minecraft:rail_sensor[επεξεργασία | επεξεργασία κώδικα]

Description
Responds with events when sliding over a rail sensor.
Parameters
Parameters Default Description
on_activate Triggers the specified event when the rail sensor is activated
on_deactivate Triggers the specified event when the rail sensor is deactivated
eject_on_activate false If true, when this entity passes over an activated rail it will eject any riders
eject_on_deactivate false If true, when this entity passes over a deactivated rail it will eject any riders
Sample usage
"minecraft:rail_sensor": {
  "on_activate": {
    "event": "minecraft:hopper_activate",
    "target": "self"
  },
  "on_deactivate": {
    "event": "minecraft:hopper_deactivate",
    "target": "self"
  }
}
Entities used in
Minecart, Minecart Chest, Minecart Hopper, Minecart TNT


minecraft:item_hopper[επεξεργασία | επεξεργασία κώδικα]

Description
This component makes an entity an item hopper
Sample usage
"minecraft:item_hopper": { }
Entities used in
Minecart Hopper


minecraft:inventory[επεξεργασία | επεξεργασία κώδικα]

Description
This component allows an entity to have an inventory container, such as a horse or chest.
Limitations
Can only specify specific container types
Parameters
Parameters Default Description
container_type "" The type of container to create
inventory_size How many slots this container has for items
can_be_siphoned_from If true, this container can have items taken from it by a hopper
Container types
horse
minecart_chest
minecart_hopper
inventory
container
hopper
Sample usage
"minecraft:inventory": {
  "container_type": "minecart_hopper",
  "inventory_size": 5,
  "can_be_siphoned_from": true
}
Entities used in
Minecart Chest, Minecart Hopper, Villager, Horse, Mule, Donkey


minecraft:explode[επεξεργασία | επεξεργασία κώδικα]

Description
This component handles causing an entity to explode
Parameters
Parameters Default Description
fuseLength -1.0 The time of the fuse, in seconds. When less than zero, the explosion will be triggered
fuseLit false Whether the fuse is initially triggered when the component is created
power 3.0 The radius of the explosion in blocks. This also determines the damage done.
causesFire false Whether the explosion will cause nearby blocks to catch on fire
breaks_blocks true If true, the explosion will break the blocks in the radius determined by power
maxResistance MAX FLOAT The explosion will break any block that has less resistance than this number
Sample usage
"minecraft:explode": {
  "fuseLength": 1,
  "fuseLit": true,
  "power": 3,
  "causesFire": false,
  "breaks_blocks": false
}
Entities used in
Creeper, Fireball Large, Minecart TNT, TNT


minecraft:item_controllable[επεξεργασία | επεξεργασία κώδικα]

Description
Sets what items can be used to control this entity
Limitations
Requires [ minecraft:behavior.controlled_by_player] to have an effect.
Parameters
Parameters Default Description
control_items 0.0f A string or string array of items that can be used to control this entity
Sample usage
"minecraft:behavior.controlled_by_player": {
  "priority": 0
}
Entities used in
Pig


Behaviors[επεξεργασία | επεξεργασία κώδικα]

Behaviors act like normal components, except that all behaviors can take a "priority" parameter which is used for the in game Artificial Intelligence system. Higher priority behaviors can stop lower priority behaviors from running if they both need to access the same system (like movement for example).

All behaviors[επεξεργασία | επεξεργασία κώδικα]

Parameters
Parameters Default Description
priority Determines how often a behavior is run. A smaller number means higher priority and it can be negative. A larger number means that it has less chance of being run


minecraft:behavior.beg[επεξεργασία | επεξεργασία κώδικα]

Description
Manages a mob’s interested state when the player is holding an item worth begging for.
Parameters
Parameters Default Description
look_distance 8 The distance, in blocks, to search for a player to beg
look_time [2, 4] A random amount of time to look at the player while begging
items [] An array of item types to be interested in begging for
Sample usage
"minecraft:behavior.beg": {
  "look_distance": 8,
  "look_time": [2, 4],
  "items": ["bone"]
}
Entities used in
Wolf


minecraft:behavior.hurt_by_target[επεξεργασία | επεξεργασία κώδικα]

Description
If this entity is hurt by an entity, it will set that entity as its target.
Sample usage
"minecraft:behavior.hurt_by_target": {
  "priority": 1
}
Entities used in
Cave Spider, Creeper, Enderman, Ghast, Iron Golem, Silverfish, Skeleton, Spider, Stray, Witch, Wither, Wolf, Zombie, Zombie Husk, Zombie Pigman, Zombie Villager


minecraft:behavior.nearest_attackable_target[επεξεργασία | επεξεργασία κώδικα]

Description
This component actively searches nearby entities to find a new target given the specified filters.
Parameters
Parameters Default Description
entity_types An array of entity descriptions that can be targeted
max_dist 0.0 The maximum distance, in blocks, to search for a target
filters List of filters for what entities can be targeted.
must_see false If true, this entity can only target entities it had direct line of sight to
must_reach false If true, this entity must be able to path to the entity to target it
attack_interval_min 0 The chance that this component will check for a target. The higher the value, the lower the chance to check.
reselect_targets false If true, the mob will search for a new target, even if it already has one, depending on priority
Sample usage
"minecraft:behavior.nearest_attackable_target": {
  "priority": 1,
  "entity_types": [
    {
      "filters": { "other_with_families": "player" },
        "max_dist": 16
    },
    {
      "filters": { "other_with_families": "villager" },
        "max_dist": 8
    },
     "must_see": false,
     "must_reach": false
  ],
  "attack_interval_min": 10
}
Entities used in
Blaze, Cave Spider, Creeper, Ghast, Guardian, Guardian Elder, Iron Golem, Magma Cube, Ocelot, Silverfish, Skeleton, Slime, Snow Golem, Spider, Stray, Witch, Wither, Wolf, Zombie, Zombie Husk, Zombie Villager


minecraft:behavior.avoid_mob_type[επεξεργασία | επεξεργασία κώδικα]

Description
Add to an entity in order to have it flee from certain mobs.
Parameters
Parameters Default Description
entity_types An array of mob descriptions that can be avoided
filters List of filters for what entities can be targeted.
max_dist 0.0 The maximum distance, in blocks, to search for a target
walk_speed_multiplier 1.0 A multiplier to normal movement speed for how fast this entity will walk away
sprint_speed_multiplier 1.0 A multiplier for how fast the entity will run away
Sample usage
"minecraft:behavior.avoid_mob_type": {
  "priority": 3,
  "entity_types": [
    {
      "entity_filter": ["ocelot"],
      "max_dist": 6,
      "walk_speed_multiplier": 1,
      "sprint_speed_multiplier": 1.2
    }
  ]
}
Entities used in
Creeper, Ocelot, Rabbits


minecraft:behavior.break_door[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to allow it to break through doors when pathing towards a target.
Sample usage
"minecraft:behavior.break_door": {
  "priority": 1
}
Entities used in
Zombie, Zombie Husk, Zombie Pigman, Zombie Villager


minecraft:behavior.breed[επεξεργασία | επεξεργασία κώδικα]

Description
Allows a mob to breed.
Limitations
Requires minecraft:breedable to have an effect.
Parameters
Parameters Default Description
speed_multiplier 0.0f A multiplier on how fast to move towards the breed target.
Sample usage
"minecraft:behavior.breed": {
  "priority": 4,
  "speed_multiplier": 1.6
}
Entities used in
Chicken, Cow, Mooshroom, Ocelot, Pig, Rabbits, Sheep, Wolf


minecraft:behavior.controlled_by_player[επεξεργασία | επεξεργασία κώδικα]

Description
Causes this entity to follow the movement of the rider who holds a control item
Limitations
Requires minecraft:rideable to have an effect.
Sample usage
"minecraft:item_controllable": {
  "control_items": "carrotOnAStick"
}
Entities used in
Pig


minecraft:behavior.defend_village_target[επεξεργασία | επεξεργασία κώδικα]

Description
Entities that hurt villagers are set as this entity’s target.
Sample usage
"minecraft:behavior.defend_village_target": {
  "priority": 1
}
Entities used in
Iron Golem


minecraft:behavior.eat_block[επεξεργασία | επεξεργασία κώδικα]

Description
This behavior causes this entity to eat grass or tall grass and trigger "on_eat".
Parameters
Parameters Default Description
on_eat Trigger that calls the specified event when a mob eats grass or tall grass
Sample usage
"minecraft:behavior.eat_block": {
  "priority": 6,
  "on_eat": {
    "event": "minecraft:on_eat_block",
    "target": "self"
  }
}
Entities used in
Sheep


minecraft:behavior.restrict_sun[επεξεργασία | επεξεργασία κώδικα]

Description
This behavior causes entities to try and avoid the sun
Sample usage
"minecraft:behavior.restrict_sun": {
  "priority": 1
}
Entities used in
Skeleton, Stray


minecraft:behavior.move_through_village[επεξεργασία | επεξεργασία κώδικα]

Description
With this behavior, this entity will move towards the closest village and move through it.
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement speed when this behavior is active
only_at_night If true, this entity will only run this behavior when it is night time
Sample usage
"minecraft:behavior.move_through_village": {
  "priority": 3,
  "speed_multiplier": 0.6,
  "only_at_night": true
}
Entities used in
Iron Golem


minecraft:behavior.stay_while_sitting[επεξεργασία | επεξεργασία κώδικα]

Description
Blocks other behaviors from executing while this entity is sitting
Limitations
Requires minecraft:sittable to have an effect.
Sample usage
"minecraft:behavior.stay_while_sitting": {
  "priority": 3
}
Entities used in
Ocelot, Wolf


minecraft:behavior.find_mount[επεξεργασία | επεξεργασία κώδικα]

Description
Add to an entity to have it attempt to ride an entity within a certain distance.
Parameters
Parameters Default Description
within_radius 0.0 How close a rideable entity must be before this entity attempts to approach and ride it
Sample usage
"minecraft:behavior.find_mount": {
  "priority": 1,
  "within_radius": 16
}
Entities used in
Zombie, Zombie Husk, Zombie Villager


minecraft:behavior.flee_sun[επεξεργασία | επεξεργασία κώδικα]

Description
Add to an entity to have it flee from sunlight if it is on fire
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier applied to movement speed when fleeing
Sample usage
"minecraft:behavior.flee_sun": {
  "priority": 2,
  "speed_multiplier": 1
}
Entities used in
Skeleton, Stray, Wither


minecraft:behavior.follow_owner[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it follow its owner around if it has been tamed.
Limitations
Requires minecraft:tameable to have an effect
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement speed when this behavior is active
start_distance 10.0 The distance, in blocks, where this entity will start walking towards the owner
stop_distance 2.0 Once following, the distance in blocks from the owner that this entity will stop following
Sample usage
"minecraft:behavior.follow_owner": {
  "priority": 6,
  "speed_multiplier": 1.0,
  "start_distance": 10,
  "stop_distance": 2
}
Entities used in
Ocelot, Wolf


minecraft:behavior.follow_parent[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it follow its parent around.
Limitations
Requires this entity to have been spawned from another entity, through breeding for example
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement speed when this behavior is active
Sample usage
"minecraft:behavior.follow_parent": {
  "priority": 6,
  "speed_multiplier": 1.1
}
Entities used in
Chicken, Cow, Mooshroom, Pig, Rabbits, Sheep


minecraft:behavior.guardian_attack[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it attack targets using the guardian’s laser attack.
Sample usage
"minecraft:behavior.guardian_attack": {
  "priority": 4
}
Entities used in
Guardian, Guardian Elder


minecraft:behavior.harvest_farm_block[επεξεργασία | επεξεργασία κώδικα]

Description
Give this behavior to an entity in order to have it harvest and plant wheat, potatoes, carrots, and beetroots.
Limitations
Currently this only works for Villagers
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement speed when this behavior is active
Sample usage
"minecraft:behavior.harvest_farm_block": {
  "priority": 5,
  "speed_multiplier": 0.32
}
Entities used in
Villager


minecraft:behavior.leap_at_target[επεξεργασία | επεξεργασία κώδικα]

Description
Give this behavior to an entity to enable it to leap at its target
Limitations
Parameters
Parameters Default Description
yd 0.0 How high the entity will jump, in blocks
must_be_on_ground true If true, the entity must be on the ground to leap at its target
Sample usage
"minecraft:behavior.leap_at_target": {
  "priority": 4,
  "yd": 0.4,
  "must_be_on_ground": false
}
Entities used in
Cave Spider, Ocelot, Spider, Wolf


minecraft:behavior.look_at_player[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it look at players.
Parameters
Parameters Default Description
look_distance The distance, in blocks, within which this entity will look at the player
probability The chance that this behavior will activate, from 0 to 1
look_time [2,2] A minimum, maximum range for the time in seconds to look at the player
Sample usage
"minecraft:behavior.look_at_player": {
  "priority": 7,
  "look_distance": 6.0,
  "probability": 0.02,
  "look_time": [2.0f, 4.0f]
}
Entities used in
Cave Spider, Chicken, Cow, Creeper, Enderman, Guardian, Guardian Elder, Iron Golem, Mooshroom, Ocelot, Pig, Rabbits, Sheep, Skeleton, Snow Golem, Spider, Stray, Villager, Witch, Wither, Zombie, Zombie Husk, Zombie Pigman, Zombie Villager


minecraft:behavior.make_love[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to a villager to make villager babies. The reason this is separate from breedable is because this component handles upkeep for the village and some other special logic.
Sample usage
"minecraft:behavior.make_love": {
  "priority": 6
}
Entities used in
Villager


minecraft:behavior.melee_attack[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to let it make melee attacks against its target
Limitations
This requires [ minecraft:attack] component.
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement when this behavior is active
track_target false If true, this entity must see its target in order to attack it
random_stop_interval 0 A random chance to stop attacking. The higher this value, the less likely it is to take effect
reach_multiplier 2.0 A multiplier on entity reach to tweak melee attack range
Sample usage
"minecraft:behavior.melee_attack": {
  "priority": 3,
  "speed_multiplier": 1.0,
  "track_target": false,
  "random_stop_interval": 100
}
Entities used in
Blaze, Cave Spider, Creeper, Enderman, Iron Golem, Silverfish, Spider, Wither, Wolf, Zombie, Zombie Husk, Zombie Pigman, Zombie Villager


minecraft:behavior.mount_pathing[επεξεργασία | επεξεργασία κώδικα]

Description
The owning mob of this goal will set its target to the target of its rider.
Limitations
Requires minecraft:rideable to have any effect
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement when this behavior is active
target_dist 0.0 When tracking a target, the distance at which we are close enough
track_target false Whether the entity needs to see the target in order to path to it
Sample usage
"minecraft:behavior.mount_pathing": {
  "priority": 1,
  "speed_multiplier": 1.25,
  "target_dist": 0.0,
  "track_target": true
}
Entities used in
Cave Spider, Chicken, Cow, Mooshroom, Ocelot, Pig, Sheep, Spider, Wolf, Zombie Pigman


minecraft:behavior.move_indoors[επεξεργασία | επεξεργασία κώδικα]

Description
Adding this behavior to an entity will make it move indoors if it is night or raining outside and they do not have a roof over their heads.
Limitations
Currently this only works for villagers
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement when this behavior is active
Sample usage
"minecraft:behavior.move_indoors": {
  "priority": 2,
  "speed_multiplier": 0.8
}
Entities used in
Villager


minecraft:behavior.ocelot_sit_on_block[επεξεργασία | επεξεργασία κώδικα]

Description
Adding to an entity makes it path above a lit furnace or bed and sit down if it has a sit component.
Limitations
Requires minecraft:sittable to have an effect. Also requires that the entity be tamed
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement when this behavior is active
Sample usage
"minecraft:behavior.ocelot_sit_on_block": {
  "priority": 6,
  "speed_multiplier": 1.0
}
Entities used in
Ocelot


minecraft:behavior.offer_flower[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to have an entity offer a flower to an entity.
Limitations
Currently this only works for Iron Golems.
Sample usage
"minecraft:behavior.offer_flower": {
  "priority": 3
}
Entities used in
Iron Golem


minecraft:behavior.swell[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it swell above its normal size.
Limitations
Currently this only works for the Creeper.
Sample usage
"minecraft:behavior.swell": {
  "priority": 2
}
Entities used in
Creeper


minecraft:behavior.take_flower[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to have an entity accept a flower from another entity.
Limitations
Currently this only works for Villagers.
Sample usage
"minecraft:behavior.take_flower": {
  "priority": 7
}
Entities used in
Villager


minecraft:behavior.tempt[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it follow the player when an item is in hand.
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement when this behavior is active
items String array of item names that this entity can be tempted by
can_get_scared false Whether this entity should run away if the player approaches too quickly
within_radius 0.0 The distance, in blocks, within which this entity will be tempted by a player with one of the specified items
Sample usage
"minecraft:behavior.tempt": {
  "priority": 5,
  "speed_multiplier": 1.2,
  "items": [
    "potato",
    "carrot",
    "beetroot",
    "carrotOnAStick"
  ]
}
Entities used in
Chicken, Cow, Mooshroom, Ocelot, Pig, Rabbit, Sheep


minecraft:behavior.move_towards_restriction[επεξεργασία | επεξεργασία κώδικα]

Description
With this goal, the entity will move towards its restriction area. This is used for things like keeping mobs close to their leash point
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement when this behavior is active
Sample usage
"minecraft:behavior.move_towards_restriction": {
  "priority": 5,
  "speed_multiplier": 1.0
}
Entities used in
chicken, cow, guardian, guardian_elder, irongolem, mushroom_cow, ocelet, pig, rabbit, sheep, snowgolem, squid, villager, wolf, zombie


minecraft:behavior.ocelotattack[επεξεργασία | επεξεργασία κώδικα]

Description
With this goal, the entity will move toward, sneaking, and hurt a target.
Parameters
Parameters Default Description
walk_speed_multiplier 1.0 Move speed multiplier when target is farther than 15 blocks away
sprint_speed_multiplier 1.0 Move speed when target is less than 4 blocks away
sneak_speed_multiplier 1.0 Move speed when target is less than 15 and more than 4 blocks away
Sample usage
"minecraft:behavior.ocelotattack": {
  "priority": 4,
  "walk_speed_multiplier": 0.8,
  "sprint_speed_multiplier": 1.33,
  "sneak_speed_multiplier": 0.6
}
Entities used in
Ocelot


minecraft:behavior.play[επεξεργασία | επεξεργασία κώδικα]

Description
With this goal, a baby villager once a while will play with another baby villager nearby
Limitations
Only works with Villagers
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement when this behavior is active
Sample usage
"minecraft:behavior.play": {
  "priority": 8,
  "speed_multiplier": 0.32
}
Entities used in
Villager


minecraft:behavior.open_door[επεξεργασία | επεξεργασία κώδικα]

Description
Add to an entity to have it open a door and maybe close it again after.
Parameters
Parameters Default Description
close_door_after false Whether the entity will close the door after it has been opened
Sample usage
"minecraft:behavior.open_door": {
  "priority": 4,
  "close_door_after": true
}
Entities used in
Villager


minecraft:behavior.owner_hurt_by_target[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it target an entity that attacks its owner.
Limitations
Requires mob to be tame to have an effect. This can be done through minecraft:tameable or being born to parents that are tamed.
Sample usage
"minecraft:behavior.owner_hurt_by_target": {
  "priority": 1
}
Entities used in
Wolf


minecraft:behavior.panic[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it run randomly.
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement speed when this behavior is active
force false If false, this behavior will only run if the entity is attacked or on fire. If true, this goal will always attempt to run, forcing the mob to be in a constant panic state
Sample usage
"minecraft:behavior.panic": {
  "priority": 1,
  "speed_multiplier": 1.25
}
Entities used in
Chicken, Cow, Mooshroom, Pig, Rabbits, Sheep


minecraft:behavior.owner_hurt_target[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it target the entity last attacked by its owner. It will not attack creepers.
Limitations
Requires mob to be tame to have an effect. This can be done through minecraft:tameable or being born to parents that are tamed.
Sample usage
"minecraft:behavior.owner_hurt_target": {
  "priority": 1
}
Entities used in
Wolf


minecraft:behavior.random_stroll[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity to have it wander randomly.
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement speed when this behavior is active
xz_dist 10 The maximum number of blocks horizontally where a stroll location may be chosen
y_dist 7 The maximum number of blocks vertically where a stroll location may be chosen
Sample usage
"minecraft:behavior.random_stroll": {
  "priority": 6,
  "speed_multiplier": 0.6,
  "xz_dist": 2,
  "y_dist": 1
}
Entities used in
Cave Spider, Chicken, Cow, Creeper, Enderman, Guardian, Elder Guardian, Iron Golem, Mooshroom, Ocelot, Pig, Rabbits, Sheep, Skeleton, Snow Golem, Spider, Stray, Villager, Witch, Wither, Wolf, Zombie, Zombie Husk, Zombie Pigman, Zombie, Villager


minecraft:behavior.ranged_attack[επεξεργασία | επεξεργασία κώδικα]

Description
Add this behavior to an entity and it can make ranged attacks against its target.
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement when this behavior is active
attack_interval_min 0 The minimum time in seconds between attacks
attack_interval_max 0 The maximum time in seconds between attacks
attack_radius 0.0 The maximum distance from the target that this entity can shoot from
charge_charged_trigger 0 The time in seconds before a charge is charged
charge_shoot_trigger 0 The time in seconds it takes to shoot
burst_shots The number of shots to take when burst shotting
burst_interval The time in seconds between bursts
Sample usage
"minecraft:behavior.ranged_attack": {
  "attack_interval_min": 20,
  "attack_interval_max": 60,
  "attack_radius": 15
}
Entities used in
Ghast, Skeleton, Snow Golem, Stray, Witch, Blaze


minecraft:behavior.raid_garden[επεξεργασία | επεξεργασία κώδικα]

Description
With this goal, a mob will move toward target blocks and eat them.
Limitations
This component will only eat farmland blocks
Parameters
Parameters Default Description
speed_multiplier 1.0 A multiplier on movement speed when this behavior is active
search_range 0.0 The radius in blocks to search for target
goal_radius 0.5 The entity is considered to have reached the target once the distance between them is less than this value
max_to_eat 6 Number of bites per eating session
eat_delay 2 Time interval between each bite in one eating session
full_delay 100 Time interval between each eating session
blocks "" String or string array of the name of blocks that this entity can eat
Sample usage
"minecraft:behavior.raid_garden": {
  "priority": 5,
  "blocks": [
    "minecraft:carrot_block"
  ],
  "search_range": 16,
  "goal_radius": 0.8
}
Entities used in
Rabbit


minecraft:behavior.random_look_around[επεξεργασία | επεξεργασία κώδικα]

Description
With this goal, a mob will randomly look around
Parameters
Parameters Default Description
look_time [1, 2] A range, in seconds, of how long to look around for
Sample usage
"minecraft:behavior.random_look_around": {
  "priority": 7,
  "look_time": [1, 2]
}
Entities used in
All Mobs


minecraft:behavior.silverfish_wake_up_friends[επεξεργασία | επεξεργασία κώδικα]

Description
With this goal, the Silverfish mob will spawn silverfish from nearby monster egg blocks when they are hurt.
Limitations
This only works with silverfish
Sample usage
"minecraft:behavior.silverfish_wake_up_friends": {
  "priority": 1
}
Entities used in
Silverfish


minecraft:behavior.silverfish_merge_with_stone[επεξεργασία | επεξεργασία κώδικα]

Description
With this goal, the Silverfish mob will turn into a monster stone egg.
Limitations
This only works with silverfish
Sample usage
"minecraft:behavior.silverfish_merge_with_stone": {
  "priority": 1
}
Entities used in
Silverfish


Events[επεξεργασία | επεξεργασία κώδικα]

Events get called by various triggers, either set up in components, or called directly from built in game events.

Built in events[επεξεργασία | επεξεργασία κώδικα]

Parameters
Event name Description
minecraft:entity_born An event that is triggered when an entity is born from breeding
minecraft:entity_spawned An event that is triggered when an entity is spawned
minecraft:entity_transformed An event that is triggered when an entity is created from being transformed into
minecraft:from_player An event that is triggered when an iron golem is created with a pumpkin block
minecraft:from_explosion An event that is triggered when a TNT explodes more TNT blocks
Parameters
Name Description
sequence A list of JSON objects to run one after another
randomize A list of JSON objects to choose randomly between. Choices can be individually weighted
add Used to add component groups
component_groups An array of component groups to add
remove Used to remove component groups
component_groups An array of component groups to remove
Sample usage
"minecraft:entity_born": {
  "sequence": [
    {
      "add": { "component_groups": [ "baby" ] }
    },
    {
      "randomize": [
        {
          "weight": 5,
          "add": { "component_groups": [ "farmer", "behavior_peasant" ] }
        },
        {
          "weight": 5,
          "add": {"component_groups": [ "fisherman", "behavior_peasant"]}
        }
      ]
    }
  ]
}
Entities used in
Most Entities


Tutorials
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Newcomer survival
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Blocks and Items
Mobs
Enchanting and smelting
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Basic redstone
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