Minecraft Snapshot 24w12a

Here's snapshot 24w12a with new advancements and several tweaks.

Happy Mining!

Experimental Features#

Trial Chambers#

Trial Chambers now generate slightly more rarely and a bit more spaced out from each other

Trial Chambers Explorer Map#

• Struggle no more to locate a Trial Chamber - level up your nearest Cartographer to Journeyman for the opportunity to trade for an Explorer Map pointing to a nearby Trial Chamber

Heavy Core#

• Can now be waterlogged
• Survives lava flows
• Most efficient tool is now the pickaxe
• Adjusted destroy time and explosion resistance

Advancements#

• Added the following advancements:
  • Minecraft: Trial(s) Edition - Step foot in a Trial Chamber
  • Under Lock & Key - Unlock a Vault using a Trial Key
  • [Challenge - 40 exp] Blowback - Kill a Breeze with a deflected Wind Charge
  • - Use a Wind Charge to launch yourself upward at least 8 blocks

Technical Changes#

• The Data Pack version is now 36
• The Resource Pack version is now 30
• • Particle entity_effect takes color argument when spawned from command
  • /particle entity_effect <r> <g> <b> <a>
  • 4 float values ranging from 0.0 to 1.0 representing RGBA

Data Pack Version 36#

• Added a crafter_recipe_crafted trigger which is triggered when a Crafter ejects a successfully crafted item into the world.
  • <player> an entity predicate matching the player who is nearby
  • <recipe_id> is the ID of the recipe being crafted
  • <ingredients> is a list of item predicates matching the ingredients that form the recipe being crafted
• Added a trigger which is triggered when a player begins falling after being knocked upwards by an explosion or wind burst

wolf_variant definitions#

• Field texture has been renamed to wild_texture
• wild_texture, tame_texture and angry_texture no longer require values to be prefixed with textures/ and suffixed with

Commands#

Inline loot values#

Arguments in following commands that previously accepted namespaced ids of loot tables, modifiers and predicates can now also accept inline definitions:

• loot
• item
• execute if predicate Values have same structure as matching JSON files, though they are encoded as SNBT. Example: execute if predicate {condition:weather_check, raining:true}

Loot tables#

storage number provider#

• This number provider is able to access numeric values from command storage directly
• If selected storage does not exist or tag selected by path is not numeric or does not exist, provider returns 0
• Fields:
  • storage - namespaced id of command storage
  • path - NBT path to field

set_lore function#

• The replace field has been removed
• Now has mode like set_fireworks and set_written_book_pages

set_written_book_pages function#

• pages is now a JSON Object rather than a string containing JSON

toggle_tooltips loot function#

• This function can be used to modify item component tooltip visiblity
• It works by setting fields like show_in_tooltip without changing other values
• Format:
  • toggles - a map of supported item component type to boolean value
• Supported components: trim, dyed_color, enchantments, stored_enchantments, , , ,

Functions#

• Nested lists are no longer supported in function lists

Item predicate argument#

The item predicate syntax (used in execute if|unless items and clear commands) has been significantly expanded.

• The general syntax is: <type> [comma-separated list of <test>]
• <type> can be one of:
  • item id
  • item tag id prefixed with #
  • * to match any item

Predicates#

Item sub-predicates#

• Predicate minecraft:custom_data now accepts both SNBT data written as a string (existing format) and unflattened tags
  • That means that *[custom_data~{a:1}] and *[custom_data~"{a:1}"] are equivalent
  • Flattened string format has been kept since NBT type information can't be expressed in JSON

Entity sub-predicates#

wolf#

New wolf sub-predicate has been added to match wolf variants Fields:

• variant - wolf variant to match (single entry, list of entries or tag)

cat, frog, painting#

• Field variant now accepts single entries, list of entries or tags

New Item Stack Components#

minecraft:food#

• When present, this item will behave as if a food (can be eaten)
• Format: object with fields
  • nutrition: non-negative integer, number of food points to restore when eaten
  • saturation_modifier: float, amount of saturation to restore when eaten
  • is_meat: boolean (default: false)
    • If true, can be fed to Wolves
  • : boolean (default: )

minecraft:max_stack_size#

• Controls the maximum stacking size of this item
• Format: integer between 1 and 99
  • e.g. max_stack_size=4
• Has an implicit default value according to the item type (usually 64)

minecraft:max_damage#

• Controls the maximum amount of damage than an item can take
• If not present, the item cannot be damaged
• Format: positive integer
  • e.g. max_damage=123
• Has an implicit default value for damageable items

minecraft:fire_resistant#

• If present, this item will not burn in fire
• Format: empty object
  • e.g. fire_resistant={}
• Has an implicit default value for fire-resistant items such as Netherite

minecraft:rarity#

• Controls the color of the item name
• Format: enumerated value, one of:
  • common (default): white name, or aqua when enchanted
  • uncommon: yellow name, or aqua when enchanted
  • rare: aqua name, or light purple when enchanted
  • epic: light purple name
  • e.g. rarity=rare
• Special items such as Golden Apples have an implicit default value

minecraft:tool#

• Controls the behavior of the item as a tool
• Format: object with fields
  • rules: list of rule entries
    • blocks: single block, list of blocks, or #-prefixed block tag to match
    • speed (optional): float, overrides the mining speed if present and matched
    • correct_for_drops (optional): boolean, overrides whether this tool is considered 'correct' if present and matched
      • will cause the block to mine at its most efficient speed, and drop items if the targeted block requires that

hide_tooltip#

• If present, it will completely hide whole item tooltip (that includes item name)
• Tooltip will be still visible and searchable in creative mode
• Format: empty object

New Tags#

• Added incorrect_for_wooden_tool, incorrect_for_gold_tool, incorrect_for_stone_tool, incorrect_for_iron_tool, incorrect_for_diamond_tool, incorrect_for_netherite_tool block tags
  • These tags combine the existing , , and tags for each specific tool tier

Resource Pack Version 30#

• Map decoration icons have been split from the former map_icons.png to use an atlas loaded from the textures/map/decorations/ directory
• The process of upgrading your pack can be assisted by using this automated Slicer tool
• Added trial_chambers map decoration icon

Fixed bugs in 24w12a#

• MC-266467 Wind charges stutter when flying through the air
• MC-267747 Click and hover events don't work when viewing chat while F1 is enabled
• MC-267933 Silk Touch and Fortune enchanted books cannot be found in Creative inventory
• MC-267943 Anvil exclusive enchantments can be obtained from enchanting tables
• MC-268068 Pieces of text in the "Reset World" realm menu can intersect when using some resolutions
• MC-268171 Some GUI textures can no longer be transparent in Minecraft
• MC-268311 Bane of arthropods enchantment uses #arthropods tag instead of #sensitive_to_bane_of_arthropods
• MC-268312 Impaling enchantment uses #aquatic tag instead of #sensitive_to_impaling
• MC-268343 Breeze charge has laggy unnatural flightpaths when punched
• MC-268510 Items with "Unbreakable:1b" NBT can no longer have the unbreaking enchant applied
• MC-268556 Wind charges go through non-full blocks instead of colliding
• MC-269083 Effect background texture in inventory renders translucent pixels as opaque
• MC-269085 Experience bar and jump bar render translucent pixels as opaque
• MC-269169 Wolf variant not present in advancement criteria
• MC-269268 components don't work on the smithing table
• MC-269280 The right side of incompatible resource or data packs isn't rendered correctly when the scroll bar is present
• MC-269299 The red text within the "Experiments" menu cannot be narrated or selected
• MC-269336 Crash with set_enchantments item modifier above level 255
• MC-269354 The subtitle for the "minecraft:item.mace.smash_air" sound event displays as a raw translation string