Blocks 1.16.100+
experimental
Better documentation on the new block format introduced in the Minecraft Beta 1.16.100 and newer versions.
WARNING
This document covers experimental features, for 1.16.100+ format version blocks. If you would like to learn about stable blocks, you can do it here.
Block Properties
Block properties are block states for all your custom blocks.
Defining Properties:
{
"format_version": "1.16.100",
"minecraft:block": {
"description": {
"identifier": "bedrock_wiki:exemplary_block",
"properties": {
"bedrock_wiki:string_property_example": [
"red",
"green",
"blue",
"purple"
],
"bedrock_wiki:boolean_property_example": [
true, false
],
"bedrock_wiki:integer_property_example": [
1, 2, 3, 4, 5
]
}
}
}
}
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Using Properties:
Properties can be tested for with the Molang query, query.block_property:
query.block_property('bedrock_wiki:string_property_example') == 'blue'
Block Events
{
"format_version": "1.16.100",
"minecraft:block": {
"description": {
"identifier": "bedrock_wiki:exemplary_block"
},
"components": {
"minecraft:on_step_on": {
"event": "bedrock_wiki:drop_loot",
"target": "self"
}
},
"events": {
"bedrock_wiki:drop_loot": {
"spawn_loot": {
"table": "loot_tables/blocks/my_loot_table.json"
}
}
}
}
}
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This example spawns a loot table when an entity stands on the block.
Event Functions
add_mob_effect
Adds a mob effect to a target when triggered.
{
"bedrock_wiki:effect_event": {
"add_mob_effect": {
"effect": "poison",
"target": "other",
"duration": 8,
"amplifier": 3
}
}
}
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remove_mob_effect
Removes a target's mob effect when triggered.
{
"bedrock_wiki:remove_effect_event": {
"remove_mob_effect": {
"effect": "poison",
"target": "other"
}
}
}
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spawn_loot
Summons a loot table.
{
"bedrock_wiki:drop_loot": {
"spawn_loot": {
"table": "loot_tables/blocks/my_loot_table.json"
}
}
}
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set_block
Removes the current block and replaces it with the defined block in the same position.
{
"bedrock_wiki:place_block": {
"set_block": "minecraft:grass"
}
}
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set_block_property
Sets the block's property.
{
"bedrock_wiki:change_color": {
"set_block_property": {
"bedrock_wiki:string_property_example": "'red'"
}
}
}
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set_block_at_pos
Sets a block at a specified position relative to the block.
{
"bedrock_wiki:trigger_event": {
"set_block_at_pos": {
"block_type": "minecraft:stone",
"block_offset": [0, 0, 0]
}
}
}
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run_command
Runs a command onto a target in context.
{
"bedrock_wiki:execute_event": {
"run_command": {
"target": "self",
"command": [ "summon pig" ]
}
}
}
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damage
Inflicts a specified damage unto a target in context.
{
"bedrock_wiki:damage_event": {
"damage": {
"type": "magic",
"target": "other",
"amount": 4
}
}
}
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decrement_stack
Decrements the player's current item stack.
{
"bedrock_wiki:remove_one": {
"decrement_stack": {}
}
}
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die
Kills the specified target in context, making the block disappear with no loot. (Destroying the block, if specified).
{
"bedrock_wiki:destroy": {
"die": {
"target": "self"
}
}
}
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play_effect
Play a particle effect at a specified contextual target's position.
{
"bedrock_wiki:particle_effect": {
"play_effect": {
"effect": "minecraft:campfire_smoke",
"target": "self"
}
}
}
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play_sound
Play a sound to a specified contextual target.
{
"bedrock_wiki:play_sound": {
"play_sound": {
"sound": "mob.enderman.death",
"target": "self"
}
}
}
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trigger
Triggers an event unto a specified contextual target.
{
"bedrock_wiki:trigger_event": {
"trigger": {
"event": "bedrock_wiki:my_event",
"target": "self"
}
}
}
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sequence
Sequences event functions
{
"bedrock_wiki:sequence_event": {
"sequence": [
{
"set_block_property": {
"bedrock_wiki:my_prop": true
}
},
{
"condition": "query.block_property('bedrock_wiki:my_prop') == true", //Optional
"trigger": {
"event": "bedrock_wiki:my_entity_event",
"target": "other"
}
}
]
}
}
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randomize
Randomizes event functions
{
"bedrock_wiki:randomize_events": {
"randomize": [
{
"weight": 1, //Defines the rarity
"set_block_property": {
"bedrock_wiki:boolean_property_example": false
}
},
{
"weight": 2,
"set_block_property": {
"bedrock_wiki:boolean_property_example": true
}
},
{
"weight": 4,
"set_block": "minecraft:stone"
}
]
}
}
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Triggering Events
Block event-trigger components:
minecraft:on_interactminecraft:on_step_onminecraft:on_step_offminecraft:on_fall_onminecraft:on_placedminecraft:on_player_placingminecraft:on_player_destroyedminecraft:tickingandminecraft:random_tickingmay be used to trigger events after a time either set or random, respectively
Block Description Components
{
"description": {
"menu_category": {
"category": "items", //required
"group": "itemGroup.name.bed", //optional
"is_hidden_in_commands": true //optional
}
}
}
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For a list of many categories, see this
Block Components
List of experimental block components, with usage examples.
minecraft:display_name
(See the Additional Notes at the bottom of this page)
{
"minecraft:display_name": "Name"
}
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minecraft:geometry
The Model the block will use.
{
"minecraft:geometry": "geometry.wiki" // Geometry identifier from geo file in 'RP/models/entity' or 'RP/models/blocks' folder
}
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minecraft:material_instances
It's mainly used to set a texture to you block.
{
"minecraft:material_instances": {
// Can also be a specific material instance for a specific face mapped in the geometry
// Wildcards follow render controller syntax
// Options 'up', 'down', and 'sides' are builtin
"*": {
"texture": "texture_name", // References texture defined in terrain_textures.json
"render_method": "blend", // Options 'blend', 'opaque', 'alpha_test',
"face_dimming": true, // Defaults to true; refers to whether or not block is affected by lighting (Undocumented)
"ambient_occlusion": true // Defaults to true; refers to whether or not faces have smooth lighting (Undocumented)
}
}
}
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Or...
{
"minecraft:material_instances": {
"bone_1": {
"texture": "texture_name", // References texture defined in terrain_textures.json
"render_method": "blend", // Options 'blend', 'opaque', 'alpha_test',
"face_dimming": true, // Defaults to true; refers to whether or not block is affected by lighting (Undocumented)
"ambient_occlusion": true // Defaults to true; refers to whether or not faces have smooth lighting (Undocumented)
}
}
}
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TIP
You need do add the material instance onto any face/bone of a cube within BlockBench.
minecraft:part_visibility
{
"minecraft:part_visibility": {
"rules": {
"bone_1": "q.block_property('bedrock_wiki:example_property') == 0", //also accepts `q.has_block_property`
"bone_2": "q.block_property('bedrock_wiki:example_property') == 0"
}
}
}
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minecraft:selection_box
The hitbox of the block when hovering on the block.
{
"minecraft:selection_box": {
"origin": [ -8, 0, -8 ],
"size": [ 16, 16, 16 ]
}
}
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Or..
{
"minecraft:selection_box": false
}
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minecraft:collision_box
The entity collision box.
{
"minecraft:collision_box":{
"origin": [-8, 0, -8],
"size": [16, 16, 16]
}
}
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Or..
{
"minecraft:collision_box": false
}
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minecraft:placement_filter
Allows to make the block only be placed on specified blocks.
{
"minecraft:placement_filter": {
"conditions": [
{
"block_filter": [ "minecraft:dirt" ],
"allowed_faces": [ "up" ] //Can be up, down or side.
}
]
}
}
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This also accepts tags, such as:
{
"minecraft:placement_filter": {
"conditions": [
{
"allowed_faces": [ "up" ],
"block_filter": [
{
"tags": "!query.any_tag('stone')"
}
]
}
]
}
}
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See this page for a list of vanilla tags and relevant blocks.
minecraft:random_ticking
Allows for behavior like random crop growth.
{
"minecraft:random_ticking": {
"on_tick": {
"event": "block_event",
"target": "self",
"condition": "query.block_property('bedrock_wiki:block_property') == true" //Optional
}
}
}
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minecraft:queued_ticking
Ticks when the values between x and y values randomly inside interval_range.
{
"minecraft:queued_ticking": {
"looping": true,
"interval_range": [20, 20], //range changed to this.
"on_tick": {
"event": "set_particles_and_effect",
"target": "block"
}
}
}
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minecraft:rotation
Allows for rotating the block.
{
"minecraft:rotation": [ 90, 180, 0 ]
}
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For block rotations like logs, see this
minecraft:unit_cube
{
"minecraft:unit_cube": {} //Forces the block to be a cube
}
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minecraft:unwalkable
Makes the block unwalkable.
{
"minecraft:unwalkable": true
}
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minecraft:crafting_table
Turns your block into a new/custom Crafting Table.
{
"minecraft:crafting_table": {
"custom_description": "Example Crafting Table", // Name shown in GUI
"grid_size": 3, // Currently only supports 3
"crafting_tags": ["crafting_table", "custom_crafting_tag"] //Tags to be used within the recipe file
}
}
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minecraft:on_step_on
Runs an event when an entity stepped on the block.
{
"minecraft:on_step_on": {
"event": "block_event",
"target": "self",
"condition": "query.block_property('bedrock_wiki:block_property') == true" //Optional
}
}
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minecraft:on_step_off
Runs an event when an entity stepped off of the block.
{
"minecraft:on_step_off": {
"event": "block_event",
"target": "self",
"condition": "query.block_property('bedrock_wiki:block_property') == true" //Optional
}
}
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minecraft:on_fall_on
Runs an event when an entity fell on the block.
{
"minecraft:on_fall_on": {
"event": "block_event",
"target": "self",
"condition": "query.block_property('bedrock_wiki:block_property') == true", //Optional
"min_fall_distance": 5
}
}
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minecraft:on_placed
Runs an event when an entity placed the block.
{
"minecraft:on_placed": {
"event": "block_event",
"target": "self",
"condition": "query.block_property('bedrock_wiki:block_property') == true" //Optional
}
}
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minecraft:on_player_placing
Runs an event when The Player placed the block.
{
"minecraft:on_player_placing": {
"event": "block_event",
"target": "self",
"condition": "query.block_property('bedrock_wiki:block_property') == true" //Optional
}
}
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minecraft:on_player_destroyed
Runs an event when The Player destroys the block. currently bugged as of 1.19.50
{
"minecraft:on_player_destroyed": {
"event": "block_event",
"target": "self",
"condition": "query.block_property('bedrock_wiki:block_property') == true" //Optional
}
}
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minecraft:on_interact
Runs an event when The Player uses the block.
{
"minecraft:on_interact": {
"event": "block_event",
"target": "self",
"condition": "query.block_property('bedrock_wiki:block_property') == true" //Optional
}
}
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Block Tags
Block tags can be given to blocks to be queried or referenced with any_tag or all_tags, which is used inside item and entity files. A tag can be applied like this:
{
"format_version": "1.16.100",
"minecraft:block": {
"description": {
"identifier": "bedrock_wiki:exemplary_block"
},
"components": {
"tag:bedrock_wiki:my_tag": {},
"tag:my_other_tag": {}
}
}
}
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and this tag can be queried with:
query.all_tagsquery.any_tagquery.block_has_all_tagsquery.block_has_any_tagquery.relative_block_has_all_tagsquery.relative_block_has_any_tag
Example of querying a tag:
{
"format_version": "1.16.100",
"minecraft:item": {
"description": {
"category": "equipment",
"identifier": "bedrock_wiki:pickaxe"
},
"components": {
"minecraft:digger": {
"use_efficiency": true,
"destroy_speeds": [
{
"speed": 5
"block": {
"tags": "query.any_tag('bedrock_wiki:my_tag', 'stone', 'metal')"
}
}
]
}
}
}
}
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Block Permutations
Block permutations are a way of conditionally applying components to a block with Molang expressions.
bedrock_wiki:
{
"format_version": "1.16.100",
"minecraft:block": {
"description": {
"identifier": "bedrock_wiki:exemplary_block",
"properties": {
"bedrock_wiki:custom_integer_property": [ 10, 20, 30, 40 ],
"bedrock_wiki:custom_boolean_property": [ false, true ],
"bedrock_wiki:custom_string_property": [ "red", "green", "blue" ]
}
},
"components": {...},
"permutations": [
{
"condition": "query.block_property('bedrock_wiki:custom_integer_property') == 20",
"components": {
"minecraft:friction": 0.1
}
},
{
"condition": "query.block_property('bedrock_wiki:custom_boolean_property') == true",
"components": {
"minecraft:destroy_time": 0.5
}
},
{
"condition": "query.block_property('bedrock_wiki:custom_string_property') == 'red'",
"components": {
"minecraft:geometry": "geometry.pig"
}
}
]
}
}
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Additional Notes
- Vanilla blocks are hard-coded. You may not override or access them.
- Following components may only have one at any given time:
"minecraft:ticking""minecraft:queued_ticking"
- It is not recommended to use
minecraft:display_name. As an example..
{
"minecraft:display_name": "Barrel of Foxes"
}
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.. Will, in-game, yield the result: tile.Barrel of Foxes.name. Using language files is strongly recommended.
- A maximum of
16values per block property may be used. - The following components may not exceed the default (16x) block size limitations:
minecraft:collision_boxminecraft:selection_box
- Custom blocks' tags are ignored by Vanilla items.
- Block faces will unconditionally darken if intersecting another block.
- Blocks will always be dropped when mined with the
Silk Touchenchantment. - The following event triggers require
collision_boxto be 4 or higher on the Y-axis:minecraft:on_step_onminecraft:on_step_offminecraft:on_fall_on
- Different parameters for
render_methodinminecraft:material_instanceswill - similar to entity runtime identifiers - affect certain properties of the block:- Inputting
opaquewill allow Redstone to pass through, Grass to decay, and on it, Mobs' spawning - Inputting
alpha_testwill not allow Redstone to pass through, Grass to decay, or Mobs to spawn on itblendhas the same properties asalpha_test
- Creating a transparent block exhibiting
opaqueproperties:
- Inputting
Use alpha_test
{
"minecraft:material_instances": {
"*": {
"render_method": "alpha_test"
}
}
}
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..Then simply link the textures via blocks.json
Contributors
