ChampionAsh5357/1206-121-primer.md

## 1206-121-primer.md

      
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              1206-121-primer.md
            
          
    Minecraft 1.20.5/6 -> 1.21 Mod Migration Primer

This is a high level, non-exhaustive overview on how to migrate your mod from 1.20.5/6 to 1.21. This does not look at any specific mod loader, just the changes to the vanilla classes.
This primer is licensed under the Creative Commons Attribution 4.0 International, so feel free to use it as a reference and leave a link so that other readers can consume the primer.
If there's any incorrect or missing information, please leave a comment below. Thanks!
Pack Changes

There are a number of user-facing changes that are part of vanilla which are not discussed below that may be relevant to modders. You can find a list of them on Misode's version changelog.
Moving Experimental Features

All experimental features which were disabled with the update_1_21 flag are now moved to their proper locations and implementations. Removed features flags can be seen within net.minecraft.world.level.storage.WorldData#getRemovedFeatureFlags.
ResourceLocation, now Private

The ResourceLocation is final and its constructor is private. There are alternatives depending on your usecase:

new ResourceLocation(String, String) -> fromNamespaceAndPath(String, String)
new ResourceLocation(String) -> parse(String)
new ResourceLocation("minecraft", String) -> withDefaultNamespace(String)
of -> bySeparator
isValidResourceLocation is removed

Depluralizing Registry and Tag Folders

Plural references to the block, entity type, fluid, game event, and item tags have been removed. They should now use their exact registry name. The same goes for registry folders.

tags/blocks -> tags/block
tags/entity_types -> tags/entity_type
tags/fluids -> tags/fluid
tags/game_events -> tags/game_event
tags/items -> tags/item
advancements -> advancement
recipes -> recipe
structures -> structure'
loot_tables -> loot_table

Oh Rendering, why must you change so?

There have been a number of rendering changes. While this will not be an in-depth overview, it will cover most of the surface-level changes.
Vertex System

The vertex system has received a major overhaul, almost being completely rewritten. However, most of the codebase has some analogue to its previous version in different locations.
First, a VertexConsumer is obtained using one of two methods: from a MultiBufferSource or the Tesselator. Both essentially take a ByteBufferBuilder, which handles the direct allocation of the vertex information, and wrap it in a BufferBuilder, which writes the data to the ByteBufferBuilder while also keeping track of other settings needed to properly write the data, such as the VertexFormat.
The MultiBufferSource constructs a VertexConsumer via #getBuffer while Tesselator does so via Tesselator#begin.
// For some MultiBufferSource bufferSource
VertexConsumer buffer = bufferSource.getBuffer(RenderType.translucent());

// Note the different return types when using
// We will need the BufferBuilder subclass in the future
BufferBuilder buffer = Tesselator.getInstance().begin(VertexFormat.Mode.QUADS, DefaultVertexFormat.POSITION_TEX_COLOR);
Next, vertices are added to the VertexConsumer using the associated methods. #addVertex must always be called first, followed by the settings specified in the VertexFormat. #endVertex no longer exists and is called automatically when calling #addVertex or when uploading the buffer.
// For some VertexConsumer buffer
buffer.addVertex(0.0f, 0.0f, 2000.0f).setUv(0, 0).setColor(-1);
buffer.addVertex(0.0f, 1.0f, 2000.0f).setUv(0, 0).setColor(-1);
buffer.addVertex(1.0f, 1.0f, 2000.0f).setUv(0, 0).setColor(-1);
buffer.addVertex(1.0f, 0.0f, 2000.0f).setUv(0, 0).setColor(-1);
Once the vertices are added, those using MultiBufferSource are done. MultiBufferSource will batch the buffers together for each RenderType and call the BufferUploader within the pipeline. If the RenderType sorts the vertices on upload, then it will do so when endBatch is called, right before RenderType#draw is called to setup the render state and draw the data.
The Tesselator, on the other hand, does not handle this logic as you are creating the BufferBuilder instance to manage. In this case, after writing all ther vertices, BufferUploader#drawWithShader should be called. The MeshData provided, which contains the vertex and index buffer along with the draw state, can be built via BufferBuilder#buildOrThrow. This replaces BufferBuilder#end.
// For some BufferBuilder buffer
BufferUploader.drawWithShader(buffer.buildOrThrow());
Changes


com.mojang.blaze3d.vertex.DefaultVertexFormat's VertexFormatElements have been moved to VertexFormatElement.
com.mojang.blaze3d.vertex.BufferBuilder$RenderedBuffer -> MeshData
com.mojang.blaze3d.vertex.VertexConsumer

vertex -> addVertex

Overload with PoseStack$Pose, Vector3f


color -> setColor
uv -> setUv
overlayCoords -> setUv1, setOverlay
uv2 -> setUv2, setLight
normal -> setNormal
endVertex is removed
defaultColor, color -> setColor, setWhiteAlpha


net.minecraft.client.model.Model#renderToBuffer now takes in an integer representing the ARGB tint instead of four floats

There is also a final method which passes in no tint


net.minecraft.client.model.geom.ModelPart#render, $Cube#compile now takes in an integer representing the ARGB tint instead of four floats

There is also an overloaded method which passes in no tint


net.minecraft.client.particle.ParticleRenderType#begin(Tesselator, TextureManager), end -> begin(BufferBuilder, TextureManager)

This method returns the BufferBuilder rather than void
When null, no rendering will occur


Shader removals and replacements

minecraft:position_color_tex -> minecraft:position_tex_color
minecraft:rendertype_armor_glint -> minecraft:rendertype_armor_entity_glint
minecraft:rendertype_glint_direct -> minecraft:rendertype_glint


net.minecraft.client.renderer.MultiBufferSource

All BufferBuilders have been replaced with ByteBufferBuilder
immediateWithBuffers now takes in a SequencedMap


net.minecraft.client.renderer.RenderType

end -> draw
sortOnUpload - When true, sorts the quads according to the VertexSorting method for the RenderType


net.minecraft.client.renderer.SectionBufferBuilderPack#builder -> #buffer
net.minecraft.client.renderer.ShaderInstance no longer can change the blend mode, only EffectInstance can, which is applied for PostPass

setDefaultUniforms - Sets the default uniforms accessible to all shader instances


net.minecraft.client.renderer.entity.ItemRenderer

getArmorFoilBuffer no longer takes in a boolean to change the render type
getCompassFoilBufferDirect is removed


net.minecraft.client.renderer.entity.layers.RenderLayer#coloredCutoutModelCopyLayerRender, renderColoredCutoutModel takes in an integer representing the color rather than three floats
com.mojang.blaze3d.vertex.BufferVertexConsumer is removed
com.mojang.blaze3d.vertex.DefaultedVertexConsumer is removed

Chunk Regions


net.minecraft.client.renderer.chunk.RenderRegionCache#createRegion only takes in the SectionPos now instead of computing the section from the BlockPos
net.minecraft.client.renderer.chunk.SectionCompiler - Renders the given chunk region via #compile. Returns the results of the rendering compilation.

This is used within SectionRenderDispatcher now to pass around the stored results and upload them


The Enchantment Datapack Object

Enchantments are now a datapack registry object. Querying them requires access to a HolderLookup.Provider or one of its subclasses.
All references to Enchantments are now wrapped with Holders. Some helpers can be found within EnchantmentHelper.
{
    // A component containing the description of the enchantment
    // Typically will be a component with translatable contents
    "description": {
        "translate": "enchantment.minecraft.example"
    },
    // An item tag that holds all items this enchantment can be applied to
    "supported_items": "#minecraft:enchantable/weapon",
    // An item tag that holds a subset of supported_items that this enchantment can be applied to in an enchanting table
    "primary_items": "#minecraft:enchantable/sharp_weapon",
    // A non-negative integer that provides a weight to be added to a pool when trying to get a random enchantment
    "weight": 3,
    // A non-negative integer that indicates the maximum level of the enchantment
    "max_level": 4,
    // The minimum cost necessary to apply this enchantment to an item
    "min_cost": {
        // The base cost of the enchantment at level 1
        "base": 10,
        // The amount to increase the cost with each added level
        "per_level_above_first": 20
    },
    // The maxmimum cost required to apply this enchantment to an item
    "max_cost": {
        "base": 60,
        "per_level_above_first": 20
    }
    // A non-negative integer that determines the cost to add this enchantment via the anvil
    "anvil_cost": 5,
    // The equipment slot groups this enchantment is applied to
    // Can be 'any', 'hand' ('mainhand' and 'offhand'), 'armor' ('head', 'chest', 'legs', and 'feet'), or 'body'
    "slots": [
        "hand"
    ],
    // An enchantment tag that contains tags that this enchantment cannot be on the same item with
    "exclusive_set": "#minecraft:exclusive_set/damage",
    // An encoded data component map which contains the effects to apply
    "effects": {
        // Read below
    },
}
EnchantmentEffectComponents

EnchantmentEffectComponents essentially apply how enchantments should react in a given context when on an item. Each effect component is encoded as an object with its component id as the key and the object value within the effect list, usually wrapped as a list. Most of these components are wrapped in a ConditionalEffect, so that will be the focus of this primer.
ConditionalEFfect

ConditionalEffects are basically a pair of the effect to apply and a list of loot conditions to determine when to execute the enchantment. The codec provided contains the effect object code and the loot context param sets to apply for the conditions (commonly one of the ENCHANTED_* sets).
The Effect Objects

Each effect object has its own combination of codecable objects and abstract logic which may refer to other registered types, similiar to loot conditions, functions, number providers, etc. For enchantments currently, this means enchantments which are applied directly to the entity, scaled and calulated for some numerical distribution, applied to the blocks around the entity, or calculating a number for some information.
For example, all protection enchantments use almost the exact same effect objects (minecraft:attributes and minecraft:damage_protection) but use the conditions to differentiate when those values should be applied.
To apply these enchantments, EnchantmentHelper has a bunch of different methods to help with the application. Typically, most of these are funneled through one of the runIterationOn* methods. These method take in the current context (e.g., stack, slot, entity) and a visitor which holds the current enchantment, level, and optionally the stack context if the item is in use. The visitor takes in a mutable object which holds the final value to return. The modifications to apply to the given item(s) are within Enchantment#modify*. If the conditions match, then the value from the mutable object is passed in, processed, and set back to the object.
Enchantment Providers

EnchantmentProviders are a provider of enchantments to items for entity inventory items or for custom loot on death. Each provider is some number of enchantments that is then randomly selected from and applied to the specified stacks via EnchantmentHelper#enchantItemFromProvider which takes in the stack to enchant, the registry access, the provider key, the difficulty instance, and the random instance.
Minor Changes


net.minecraft.world.entity.LivingEntity#activeLocationDependentEnchantments - Returns the enchantments which depend on the current location of the entity
net.minecraft.world.entity.Entity#doEnchantDamageEffects has been removed
net.minecraft.world.entity.npc.VillagerTrades$ItemListing implementations with Enchantments now take in keys or tags of the corresponding object
net.minecraft.world.entity.player.Player#getEnchantedDamage - Gets the dmaage of a source modified by the current enchantments
net.minecraft.world.entity.projectile.AbstractArrow#hitBlockEnchantmentEffects - Applies the enchantment modifiers when a block is hit
net.minecraft.world.entity.projectile.AbstractArrow#setEnchantmentEffectsFromEntity has been removed
net.minecraft.world.item.ItemStack#enchant takes in a Holder<Enchantment> instead of the direct object
net.minecraft.world.entity.Mob#populateDefaultEquipmentEnchantments, enchantSpawnedWeapon, enchantSpawnedArmor now take in a ServerLevelAccessor and DifficultyInstance

The Painting Variant Datapack Object

PaintingVariants are now a datapack registry object. Querying them requires access to a HolderLookup.Provider or one of its subclasses.
{
    // A relative location pointing to 'assets/<namespace>/textures/painting/<path>.png
    "asset_id": "minecraft:courbet",
    // A value between 1-16 representing the number of blocks this variant takes up
    // e.g. a width of 2 means it takes up 2 blocks, and has an image size of 32px
    "width": 2,
    // A value between 1-16 representing the number of blocks this variant takes up
    // e.g. a height of 1 means it takes up 1 blocks, and has an image size of 16px
    "height": 1
}
Attribute Modifiers, now with ResourceLocations

AttributeModifiers no longer take in a String representing its UUID. Instead, a ResourceLocation is provided to uniquely identity the modifier to apply. Attribute modifiers can be compared for ResourceLocations using #is.

net.minecraft.world.effect.MobEffect

addAttributeModifier, $AttributeTemplate takes in a ResourceLocation instead of a String


net.minecraft.world.entity.ai.attributes.AttributeInstance

getModifiers returns a Map<ResourceLocation, AttributeModifier>
getModifier, hasModifier, removeModifier now takes in a ResourceLocation
removeModifier now returns a boolean
removePermanentModifier is removed
addOrReplacePermanentModifier - Adds or replaces the provided modifier


net.minecraft.world.entity.ai.attributes.AttributeMap

getModifierValue, hasModifier, now takes in a ResourceLocation


net.minecraft.world.entity.ai.attributes.AttributeSupplier

getModifierValue, hasModifier, now takes in a ResourceLocation


RecipeInput

Recipes now take in a net.minecraft.world.item.crafting.RecipeInput instead of a Container. A RecipeInput is basically a minimal view into a list of available stacks. It contains three methods:

getItem - Returns the stack in the specified index
size - The size of the backing list
isEmpty - true if all stacks in the list are empty

As such, all implementations which previous took a Container now take in a RecipeInput. You can think of it as replacing all the C generics with a T generic representing the RecipeInput. This also includes RecipeHolder, RecipeManager, and the others below.
CraftingInput

CraftingInput is an implementation of RecipeInput which takes in width and height of the grid along with a list of ItemStacks. One can be created using CraftingInput#of. These are used in crafting recipes.
SingleRecipeInput

SingleRecipeInput is an implementation of RecipeInput that only has one item. One can be created using the constructor.
Changing Dimensions

How entities change dimensions have been slightly reworked in the logic provided. Instead of providing a PortalInfo to be constructed, instead everything returns a DimensionTransition. DimensionTransition contains the level to change to, the entity's position, speed, and rotation, and whether a respawn block should be checked. DimensionTransition replaces PortalInfo in all scenarios.
Entities have two methods for determining whether they can teleport. Entity#canUsePortal returns true if the entity can use a Portal to change dimensions, where the boolean supplies allows entities who are passengers to teleport. To actually change dimensions, Entity#canChangeDimensions must return true, where the current and teleporting to level is provided. Normally, only canUsePortal is changed while canChangeDimensions is always true.

canChangeDimensions functioned as canUsePortal in 1.20.5/6.

To change dimensions via a portal, a Portal should be supplied to Entity#setAsInsidePortal. A Portal contains how long it takes for the portal to transition, the DimensionTransition destination, and the transition effect to apply to the user. This is all wrapped in a PortalProcessor and stored on the Entity. Once the player is teleported a DimensionTransition$PostDimensionTransition is executed, for example playing a sound.
Portals are generally implmented on the Block doing the teleporting.

net.minecraft.world.entity.Entity

changeDimension(ServerLevel) -> changeDimension(DimensionTransition)
findDimensionEntryPoint -> Portal#getPortalDestination
getPortalWaitTime -> Portal#getPortalTransitionTime
handleInsidePortal -> setAsInsidePortal
handleNetherPortal -> handlePortal
teleportToWithTicket is removed
getRelativePortalPosition is now public


net.minecraft.world.level.portal.PortalShape

createPortalInfo is removed
findCollisionFreePosition is now public


net.minecraft.client.player.LocalPlayer#getActivePortalLocalTransition - Defines the transition to apply to the entity when the player is within a portal
net.minecraft.world.level.portal.PortalForce#findPortalAround -> findClosestPortalPosition

Minor Changes


net.minecraft.recipebook.ServerPlaceRecipe now has a generic taking in the RecipeInput and the Recipe rather than the Container
net.minecraft.world.inventory.CraftingContainer#asCraftInput - Converts a crafting container to an input to supply
net.minecraft.world.inventory.CraftingContainer#asPositionedCraftInput - Converts a crafting container to an input positioned at some location within a grid
net.minecraft.world.inventory.CraftingMenu#slotChangedCraftingGrid now takes in a RecipeHolder
net.minecraft.world.inventory.RecipeBookMenu now has a generic taking in the RecipeInput and the Recipe rather than the Container

beginPlacingRecipe - When the recipe is about to be placed in the corresponding location
finishPlacingRecipe - AFter the recipe has been placed in the corresponding location


net.minecraft.client.gui.screens.recipebook.*RecipeComponent#addItemToSlot still exists but is no longer overridded from its subclass

Minor Migrations

The following is a list of useful or interesting additions, changes, and removals that do not deserve their own section in the primer.
Options Screens Movement

The options screens within net.minecraft.client.gui.screens and net.minecraft.client.gui.screens.controls have been moved to net.minecraft.client.gui.screens.options and net.minecraft.client.gui.screens.options.controls, respectively.
The HolderLookup$Provider in LootTableProvider

net.minecraft.data.loot.LootTableProvider$SubProviderEntry takes in a function which provides the HolderLookup$Provider and returns the LootTableSubProvider. LootTableSubProvider#generate no longer takes in a HolderLookup$Provider as its first argument.
DecoratedPotPattern Object

Registries#DECORATED_POT_PATTERNS takes in a DecoratedPotPattern instead of the raw string for the asset id. This change has been reflected in all subsequent classes (e.g. Sheets).
Jukebox Playable

RecordItems has been removed in favor of a new data component JukeboxPlayable. This is added via the item properties. A jukebox song is played via JukeboxSongPlayer. JukeboxBlockEntity handles an implementation of JukeboxSongPlayer, replacing all of the logic handling within the class itself.

net.minecraft.world.item.Item$Properties#jukeboxPlayable - Sets the song to play in a jukebox when this is added
net.minecraft.world.item.JukeboxSong - A SoundEvent, description, length, and comparator output record indicating what this item would do when placed in a jukebox

This is a datapack registry


net.minecraft.world.item.JukeboxPlayable - The data component for a JukeboxSong
net.minecraft.world.item.JukeboxSongPlayer - A player which handles the logic of how a jukebox song is played
net.minecraft.world.level.block.entity.JukeboxBlockEntity#getComparatorOutput - Gets the comparator output of the song playing in the jukebox

Chunk Generation Reorganization

Chunk generation has been reorganized again, where generation logic is moved into separate maps, task, and holder classes to be executed and handled asyncronously in most instances. Missing methods can be found in ChunkGenerationTask, GeneratingChunkMap, or GenerationChunkHolder. Additional chunk generation handling is within net.minecraft.world.level.chunk.status.*.
This also means some region methods which only contain generation-based information have been replaced with one of these three classes instead of their constructed counterparts. The steps are now listed in a ChunkPyramid, which determines the steps takes on how a protochunk is transformed into a full chunk. Each step can have a ChunkDependencies, forcing the order of which they execute. ChunkPyramid#GENERATION_PYRAMID handles chunk generation during worldgen while LOADING_PYRAMID handles loading a chunk that has already been generated. The WorldGenContext holds a reference to the main thread box when necessary.
Delta Tracker

net.minecraft.client.DeltaTracker is an interface mean to keep track of the delta ticks, both ingame and real time. This also holds the current partial tick. This replaces most instances passing around the delta time or current partial tick.

net.minecraft.client.Minecraft#getFrameTime, getDeltaFrameTime -> getTimer
net.minecraft.client.Timer -> DeltaTracker$Timer
net.minecraft.client.gui.Gui#render now takes in a DeltaTracker

Additions


com.mojang.realmsclient.dto.RealmsServer#isMinigameActive - Returns whether a minigame is active.
net.minecraft.SystemReport#sizeInMiB - Converts a long representing the number of bytes into a float representing Mebibyte (Power 2 Megabyte)
net.minecraft.Util#isSymmetrical - Checks whether a list, or some subset, is symmetrical
net.minecraft.advancements.critereon.MovementPredicate - A predicate which indicates how the entity is currently moving
net.minecraft.client.gui.components.AbstractSelectionList#clampScrollAmount - Clamps the current scroll amount
net.minecraft.client.gui.screens.AccessibilityOnboardingScreen#updateNarratorButton - Updates the narrator button
net.minecraft.client.gui.screens.worldselection.WorldCreationContext#validate - Validates the generators of all datapack dimensions
net.minecraft.client.multiplayer.ClientPacketListener

updateSearchTrees - Rebuilds the search trees for creative tabs and recipe collections
searchTrees - Gets the current search trees for creative tabs and recipe collections


net.minecraft.client.multiplayer.SessionSearchTrees - The data contained for creative tabs and recipe collections on the client
net.minecraft.commands.arguments.item.ItemParser$Visitor#visitRemovedComponent - Executed when a component is to be removed as part of an item input
net.minecraft.core.Registry#getAny - Gets an element from the registry, usually the first one registered
net.minecraft.core.component.DataComponentMap

makeCodec - Creates a component map codec from a component type codec
makeCodecFromMap - Creates a component map codec from a component type to object map codec


net.minecraft.util.ProblemReporter#getReport - Returns a report of the problem
net.minecraft.util.Unit#CODEC
net.minecraft.world.damagesource.DamageSources#campfire - Returns a source where the damage was from a campfire
net.minecraft.world.damagesource.DamageType#CODEC
net.minecraft.world.entity.LivingEntity

hasLandedInLiquid - Returns whether the entity is moving faster than -0.00001 in the y direction while in a liquid
getKnockback - Gets the knockback to apply to the entity


net.minecraft.world.entity.Mob#playAttackSound - Executes when the mob should play a sound when attacking
net.minecraft.world.entity.ai.attributes.Attribute#CODEC
net.minecraft.world.entity.ai.attributes.AttibuteMap

addTransientAttributeModifiers - Adds all modifiers from the provided map
removeAttributeModifiers - Removes all modifiers in the provided map


net.minecraft.world.entity.projectile.AbstractArrow

getWeaponItem - The weapon the arrow was fired from
setBaseDamageFromMob - Sets the base damage this arrow can apply


net.minecraft.world.entity.projectile.Projectile#calculateHorizontalHurtKnockbackDirection - Returns the horizontal vector of the knockback direction
net.minecraft.world.inventory.ArmorSlot - A slot for armor
net.minecraft.world.item.CrossbowItem#getChargingSounds - Sets the sounds to play when pulling back the crossbow
net.minecraft.world.item.Item#postHurtEntity - Gets called after the enemy has been hurt by this item
net.minecraft.world.level.Explosion#canTriggerBlocks - Returns whether the explosion cna trigger a block
net.minecraft.world.level.block.LeverBlock#playSound - Plays the lever click sound
net.minecraft.world.level.levelgen.blockpredicates.BlockPredicate

unobstructed - Returns a predicate which indicates the current vector is not obstructed by another entity


net.minecraft.world.level.storage.loot.functions.EnchantedCountIncreaseFunction - A function which grows the loot based on the corresponding enchantment level
net.minecraft.world.level.storage.loot.predicates.EnchantmentActiveCheck - Checks whether a given enchantment is applied
net.minecraft.world.level.storage.loot.providers.number.EnchantmentLevelProvider - Determines the enchantment level to provide
net.minecraft.world.phys.AABB#move - An overload of #move which takes in a Vector3f
net.minecraft.core.dispenser.DefaultDispenseItemBehavior#consumeWithRemainder - Shrinks the first item stack. If empty, then the second item stack is returned. Otherwise, the second item stack is added to an inventory or dispensed, and the first item stack is returned.
net.minecraft.server.MinecraftServer

throwIfFatalException - Throws an exception if its variable isn't null
setFatalException - Sets the fatal exception to throw


net.minecraft.util.StaticCache2D - A two-dimensional read-only array which constructs all objects on initialization
net.minecraft.world.entity.Entity

fudgePositionAfterSizeChange - Returns whether the entity's position can be moved to an appropriate free position after its dimension's change
getKnownMovement - Returns the current movement of the entity, or the last known client movement of the player


net.minecraft.world.entity.ai.attributes.Attribute

setSentiment - Sets whether the attribute provides a positive, neutral or negative benefit when the value is positive
getStyle - Gets the chat formatting of the text based on the sentiment and whether the attribite value is positive


net.minecraft.world.entity.ai.attributes.AttributeMap#getAttributestoSync - Returns the attributes to sync to the client
net.minecraft.world.level.storage.loot.LootContext$Builder#withOptionalRandomSource - Sets the random source to use for the loot context during generation

This is passed by LootTable#getRandomItems(LootParams, RandomSource)


net.minecraft.client.Options#genericValueOrOffLabel - Gets the generic value label, or an on/off component if the integer provided is 0
net.minecraft.client.gui.GuiGraphics#drawStringWithBackdrop - Draws a string with a rectangle behind it
net.minecraft.gametest.framework.GameTestHelper

assertBlockEntityData - Asserts that the block entity has the given information
assertEntityPosition - Asserts that the enity position is within a bounding box


net.minecraft.server.level.ServerPlayer#copyRespawnPosition - Copies the respawn position from another player
net.minecraft.server.players.PlayerList#sendActiveEffects, sendActivePlayerEffects - Sends the current entity's effects to the client using the provided packet listener
net.minecraft.util.Mth#hsvToArgb - Converts an HSV value with an alpha integer to ARGB
net.minecraft.world.entity.Entity#absRotateTo - Rotates the y and x of the entity clamped between its maximum values
net.minecraft.world.entity.ai.attributes.AttributeMap#assignBaseValues - Sets the base value for each attribute in the map
net.minecraft.world.item.ItemStack#forEachModifier - An overload which applies the modifier for each equipment slot in the group

Applies to net.minecraft.world.item.component.ItemAttributeModifiers#forEach as well


net.minecraft.world.level.levelgen.PositionalRandomFactory#fromSeed - Constructs a random instance from a seed
net.minecraft.world.level.levelgen.structure.pools.DimensionPadding - The padding to apply above and below a structure when attempting to generate
net.minecraft.ReportType - An object that represents a header plus a list of nuggets to display after the header text
net.minecraft.advancements.critereon.GameTypePredicate - A predicate that checks the game type of the player (e.g. creative, survival, etc.)
net.minecraft.advancements.critereon.ItemJukeboxPlayablePredicate - A predicate that checks if the jukebox is playing a song
net.minecraft.core.BlockPos#clampLocationWithin - Clamps the vector within the block
net.minecraft.core.registries.Registries

elementsDirPath - Gets the path of the registry key
tagsDirPath - Gets the tags path of the registry key (replaces TagManager#getTagDir


net.minecraft.network.DisconnectionDetails - Information as to why the user was disconnected from the current world
net.minecraft.server.MinecraftServer#serverLinks - A list of entries indicating what the link coming from the server is

Only used for bug reports


net.minecraft.util.FastColor

$ABGR32#fromArgb32 - Reformats an ARGB32 color into a ABGR32 color
$ARGB32#average - Averages two colors together by each component


net.minecraft.util.Mth#lengthSquared - Returns the squared distance of three floats
net.minecraft.world.entity.LivingEntity#triggerOnDeathMobEffects - Trigers the mob effects when an entity is killed
net.minecraft.world.entity.TamableAnimal

tryToTeleportToOwner - Attempts to teleport to the entity owner
shouldTryTeleportToOwner - Returns true if the entity owner is more than 12 blocks away
unableToMoveToOwner - Returns true if the animal cannot move to the entity owner
canFlyToOwner - Returns true if the animal can fly to the owner


net.minecraft.world.entity.projectile.Projectile#disown - Removes the owner of the projectile
net.minecraft.world.item.EitherHolder - A holder which either contains the holder instance or a resource key
net.minecraft.world.level.chunk.ChunkAccess#isSectionEmpty - Returns whether the section only has air
net.minecraft.FileUtil#sanitizeName - Replaces all illegal file charcters with underscores
net.minecraft.Util#parseAndValidateUntrustedUri - Returns a URI after validating that the protocol scheme is supported
net.minecraft.client.gui.screens.ConfirmLinkScreen now has two overloads to take in a URI

confirmLinkNow and confirmLink also has overloads for a URI parameter


net.minecraft.client.renderer.LevelRenderer#renderFace - Renders a quad given two points and a color
net.minecraft.client.renderer.entity.EntityRenderer#renderLeash - A private method that renders the leash for an entity
net.minecraft.client.resources.model.BlockStateModelLoader - Loads the blockstate definitions for every block in the registry

Anything missing from ModelBakery is most likely here


net.minecraft.client.resources.model.ModelBakery$TextureGetter - Gets the TextureAtlasSprite given the model location and the material provided
net.minecraft.core.BlockPos#getBottomCenter - Gets the Vec3 representing the bottom center of the position
net.minecraft.gametest.framework.GameTestBatchFactory#fromGameTestInfo(int) - Batches the game tests into the specified partitions
net.minecraft.gametest.framework.GameTestHelper#getTestRotation - Gets the rotation of the structure from the test info
net.minecraft.gametest.framework.GameTestRunner$StructureSpawner#onBatchStart - Executes when the batch is going to start running within the level
net.minecraft.network.ProtocolInfo$Unbound

id - The id of the protocol
flow - The direction the packet should be sent
listPackets - Provides a visitor to all packets that can be sent on this protocol


net.minecraft.network.chat.Component#translationArg - Creates a component for a URI
net.minecraft.network.protocol.game.VecDeltaCodec#getBase - Returns the base vector before encoding
net.minecraft.server.level.ServerEntity

getPositionBase - Returns the current position of the entity
getLastSentMovement - Gets the vector representing the last velocity of the entity sent to the client
getLastSentXRot - Gets the last x rotation of the entity sent to the client
getLastSentYRot - Gets the last y rotation of the entity sent to the client
getLastSentYHeadRot - Gets the last y head rotation of the entity sent to the client


net.minecraft.world.damagesource.DamageSource#getWeaponItem - Returns the itemstack the direct entity had
net.minecraft.world.entity.Entity

adjustSpawnLocation - Returns the block pos representing the spawn location of the entity. By default, returns the entity spawn location
moveTo has an overload taking in a Vec3
placePortalTicket - Adds a region ticket that there is a portal at the BlockPos
getPreciseBodyRotation - Lerps between the previous and current body rotation of the entity
getWeaponItem - The item the entity is holding as a weapon


net.minecraft.world.entity.Leashable - Indicates that an entity can be leashed
net.minecraft.world.entity.Mob

dropPreservedEquipment - Drops the equipment the entity is wearing if it doesn't match the provided predicate or if the equipment succeeds on the drop chance check


net.minecraft.world.entity.player.Player

setIgnoreFallDamageFromCurrentImpulse - Ignores the fall damage from the current impulses for 40 ticks when true
tryResetCurrentImpulseContext - Resets the impulse if the grace time reaches 0


net.minecraft.world.item.ItemStack#hurtAndConvertOnBreak - Hurts the stack and when the item breaks, sets the item to another item
net.minecraft.world.level.chunk.storage.ChunkIOErrorReporter - Handles error reporting for chunk IO failures
net.minecraft.world.level.chunk.sotrage.ChunkStorage, IOWorker, RegionFileStorage, SimpleRegionStorage#storageInfo - Returns the RegionStorageInfo used to store the chunk
net.minecraft.world.level.levelgen.structure.Structure$StructureSettings now has a constructor with default values given the biome tag

$Builder - Builds the settings for the structure


net.minecraft.world.level.levelgen.structure.templatesystem.LiquidSettings - The settings to apply for blocks spawning with liquids within them
net.minecraft.world.level.storage.loot.ValidationContext now has an constructor overload taking in an empty HolderGetter$Provider

allowsReferences - Checks whether the resolver is present


net.minecraft.client.Options#onboardingAccessibilityFinished - Disables the onboarding accessibility feature
net.minecraft.client.gui.screens.reporting.AbstractReportScreen

createHeader - Creates the report header
addContent - Adds the report content
createFooter - Creates the report footer
onReportChanged - Updates the report information, or sets a CannotBuildReason if not possible to change


net.minecraft.client.multiplayer.chat.report.Report#attested - Sets whether the user has read the report and wants to send it
net.minecraft.world.level.levelgen.feature.EndPlatformFeature - A feature that generates the end platform
net.minecraft.world.level.levelgen.placement.FixedPlacement - A placement that places a feature in one of the provided positions
net.minecraft.world.phys.AABB

getBottomCenter - Gets the Vec3 representing the bottom center of the box
getMinPosition - Gets the Vec3 representing the smallest coordinate of the box
getMaxPosition - Gets the Vec3 representing the largest coordinate of the box


net.minecraft.world.entity.player.Player#isIgnoringFallDamageFromCurrentImpulse - Returns whether the player should ignore fall damage
net.minecraft.world.item.LeadItem#leashableInArea - Returns a list of Leashable entities within a 7 block radius of the provided block position

Changes


net.minecraft.advancements.critereon.EnchantmentPredicate now takes in a HolderSet<Enchantment

The previous constructor still exists as an overload


net.minecraft.advancements.critereon.EntityFlagsPredicate now takes in a boolean for if the entity is on the ground or flying
net.minecraft.advancements.critereon.EntityPredicate now takes in a movement predicate and periodic tick which indicates when the predicate can return true
net.minecraft.advancements.critereon.LocationPredicate now takes in a fluid predicate
net.minecraft.client.gui.components.AbstractSelectionList#setScrollAmount -> setClampedScrollAmount

setScrollAmount now delegates to this method


net.minecraft.client.gui.components.OptionsList now longer takes in the unused integer
net.minecraft.client.gui.screens.inventory.CreativeModeInventoryScreen now takes in a LocalPlayer instead of a Player
net.minecraft.client.resources.language.LanguageManager now takes in a Consumer<ClientLanguage> which acts as a callback when resources are reloaded
net.minecraft.client.searchtree.PlainTextSearchTree -> SearchTree#plainText
net.minecraft.client.searchtree.RefreshableSearchTree -> SearchTree
net.minecraft.commands.arguments.item.ItemInput now takes in a DataComponentPatch instead of a DataComponentMap
net.minecraft.core.component.TypedDataComponent#createUnchecked is now public
net.minecraft.data.loot.BlockLootSubProvider now takes in a HolderLookup$Provider

HAS_SILK_TOUCH -> hasSilkTouch
HAS_NO_SILK_TOUCH -> doesNotHaveSilkTouch
HAS_SHEARS_OR_SILK_TOUCH -> hasShearsOrSilkTouch
HAS_NO_SHEARS_OR_SILK_TOUCH -> doesNotHaveShearsOrSilkTouch
Most protected static methods were turned into instance methods


net.minecraft.data.loot.EntityLootSubProvider now takes in a HolderLookup$Provider
net.minecraft.data.recipes.RecipeProvider#trapdoorBuilder is now protected
net.minecraft.recipebook.ServerPlaceRecipe

addItemToSlot now takes in an Integer instead of a Iterator<Integer>
moveItemToGrid now takes in an integer representing the minimum count and returns the number of items remaining that can be moved with the minimum count in place


net.minecraft.resources.RegistryDataLoader

load is now private
$RegistryData now takes in a boolean indicating whether the data must have an element


net.minecraft.world.damagesource.CombatRules#getDamageAfterAbsorb now takes in a LivingEntity
net.minecraft.world.entity.Entity#igniteForSeconds now takes in a float
net.minecraft.world.entity.LivingEntity

onChangedBlock now takes in a ServerLevel
getExperienceReward -> getBaseExperienceReward

getExperienceReward is now final and takes in the ServerLevel and Entity


getRandom -> Entity#getRandom (usage has not changed)
dropExperience now takes in a nullable Entity
dropCustomDeathLoot no longer takes in an integer
jumpFromGround is now public for testing


net.minecraft.world.entity.monster.AbstractSkeleton#getArrow now keeps track of the weapon it was fired from
net.minecraft.world.entity.player.Player$startAutoSpinAttack now takes in a float representing the damage and a stack representing the item being held
net.minecraft.world.entity.projectile.AbstractArrow now keeps track of the weapon it was fired from

setPierceLevel is now private


net.minecraft.world.entity.projectile.ProjectileUtil#getMobArrow now keeps track of the weapon it was fired from
net.minecraft.world.item.CrossbowItem#getChargeDuration now takes in an ItemStack and LivingEntity
net.minecraft.world.item.Item

getAttackDamageBonus now takes in an Entity and DamageSource instead of just the Player
getUseDuration now takes in a LivingEntity


net.minecraft.world.item.ItemStack

hurtAndBreak now takes in a ServerLevel instead of a RandomSource
hurtEnemy now returns a boolean if the entity was succesfully hurt


net.minecraft.world.item.MaceItem#canSmashAttack takes in a LivingEntity instead of a Player
net.minecraft.world.item.ProjectileWeaponItem#shoot takes in a ServerLevel instead of a Level
net.minecraft.world.item.component.CustomData

update now takes in a DynamicOps<Tag>
read now has an overload that takes in a DynamicOps<Tag>


net.minecraft.world.level.Level$ExplosionInteraction now implements StringRepresentable
net.minecraft.world.entity.projectile.windcharge.AbstractWindCharge$WindChargeDamageCalculator -> net.minecraft.world.level.SimpleExplosionDamageCalculator
net.minecraft.world.level.block.ButtonBlock#press now takes in a nullable Player
net.minecraft.world.level.block.LeverBlock#pull now takes in a nullable Player and does not return anything
net.minecraft.world.level.storage.loot.LootContext$EntityTarget

KILLER -> ATTACKER
DIRECT_KILLER -> DIRECT_ATTACKER
KILLER_PLAYER -> ATTACKING_PLAYER


net.minecraft.world.level.storage.loot.functions.CopyNameFunction$NameSource

KILLER -> ATTACKING_ENTITY
KILLER_PLAYER -> LAST_DAMAGE_PLAYER


net.minecraft.world.level.storage.loot.parameters.LootContextParams

KILLER_ENTITY -> ATTACKING_ENTITY
DIRECT_KILLER_ENTITY -> DIRECT_ATTACKING_ENTITY


net.minecraft.world.level.storage.loot.predicates.LootItemConditions#TYPED_CODEC, DIRECT_CODEC, CODEC have been moved to LootItemCondition
net.minecraft.world.level.storage.loot.predicates.LootItemRandomChanceWithLootingCondition -> LootItemRandomChanceWithEnchantedBonusCondition
net.minecraft.world.phys.shapes.VoxelShape#getCoords is now public
net.minecraft.advancements.critereon.DamageSourcePredicate now takes in a boolean of if the damage source is direct
net.minecraft.client.gui.components.SubtitleOverlay$Subtitle is now package private
net.minecraft.network.protocol.game.ClientboundProjectilePowerPacket takes in an accelerationPower double instead of power for each of the coordinate components
net.minecraft.network.protocol.game.ClientboundSetEntityMotionPacket#get*a now provides the double representing the actual acceleration vector of the coordinate instead of the shifted integer
net.minecraft.world.damagesource.DamageSource#isIndirect has been replaced with isDirect, which does the opposite check
net.minecraft.world.entity.Entity#push now contains an overload that takes in a Vec3
net.minecraft.world.entity.LivingEntity#eat is now final

A separate overload taking in the FoodProperties can now be overridden


net.minecraft.world.entity.ai.attributes.AttributeMap#getDirtyAttributes -> getAttributestoUpdate
net.minecraft.world.entity.animal.frog.Tadpole#HITBOX_WIDTH, HITBOX_HEIGHT is now final
net.minecraft.world.entity.npc.AbstractVillager#getOffers now throws an error if called on the logical client
net.minecraft.world.entity.projectile.AbstractHurtingProjectile constructors now take in Vec3 to assign the directional movement of the acceleration power rather than the coordinate powers

ATTACK_DEFLECTION_SCALE -> INITIAL_ACCELERATION_POWER
BOUNCE_DEFELECTION_SCALE -> DEFLECTION_SCALE
xPower, yPower, zPower -> accelerationPower


net.minecraft.world.food.FoodData#eat(ItemStack) -> eat(FoodProperties)
net.minecraft.world.food.FoodProperties now takes in a stack representing what the food turns into once eaten
net.minecraft.world.item.CrossbowItem#getChargeDuration no longer takes in an ItemStack
net.minecraft.world.item.ItemStack

transmuteCopy now has an overload which takes in the current count
transmuteCopyIgnoreEmpty is now private


net.minecraft.world.level.ChunkPos#getChessboardDistance now has an overload to take in the x and z coordinates without being wrapped in a ChunkPos
net.minecraft.world.level.block.LecternBlock#tryPlaceBook now takes in a LivingEntity instead of an Entity
net.minecraft.world.level.block.entity.CampfireBlockEntity#placeFood now takes in a LivingEntity instead of an Entity
net.minecraft.world.level.chunk.ChunkAccess#getStatus -> getPersistedStatus
net.minecraft.world.level.chunk.ChunkGenerator#createBiomes, fillFromNoise no longer takes in an Executor
net.minecraft.world.level.levelgen.structure.pools.JigsawPlacement#addPieces now takes in a DimensionPadding when determining the starting generation point
com.mojang.blaze3d.systems.RenderSystem

glBindBuffer(int, IntSupplier) -> glBindBuffer(int, int)
glBindVertexArray(Supplier<Integer>) -> glBindVertexArray(int)
setupOverlayColor(IntSupplier, int) -> setupOverlayColor(int, int)


net.minecraft.advancements.critereon.EntityPredicate#location, steppingOnLocation has been wrapped into a $LocationWrapper subclass

This does not affect currently generated entity predicates


net.minecraft.client.Options#menuBackgroundBlurriness, getMenuBackgroundBlurriness now returns an integer
net.minecraft.client.renderer.GameRenderer#MAX_BLUR_RADIUS is now public and an integer
net.minecraft.gametest.framework.GameTestHelper#getBlockEntity now throws an exception if the block entity is missing
net.minecraft.network.protocol.game.ServerboundUseItemPacket now takes in the y and x rotation of the item
net.minecraft.server.level.ServerLevel#addDuringCommandTeleport, #addDuringPortalTeleport have been combined into addDuringTeleport by checking whether the entity is a ServerPlayer
net.minecraft.server.level.ServerPlayer#seenCredits is now public
net.minecraft.server.players.PlayerList#respawn now takes in an Entity$RemovalReason
net.minecraft.world.effect.OozingMobEffect#numberOfSlimesToSpawn(int, int, int) -> numberOfSlimesToSpawn(int, NearbySlimes, int)
net.minecraft.world.entity.Entity

setOnGroundWithKnownMovement -> setOnGroundWithMovement
getBlockPosBelowThatAffectsMyMovement is now public


net.minecraft.world.entity.EquipmentSlot now takes in an integer represent the max count the slot can have, or 0 if unrestricted

Can be applied via limit which splits the current item stack


net.minecraft.world.entity.LivingEntity

dropAllDeathLoot, dropCustomDeathLoot now takes in a ServerLevel
broadcastBreakEvent -> onEquippedItemBroken
getEquipmentSlotForItem is now an instance method


net.minecraft.world.entity.ai.attributes.AttributeMap#assignValues -> assignAllValues
net.minecraft.world.entity.raid.Raider#applyRaidBuffs now takes in a ServerLevel
net.minecraft.world.item.ItemStack#hurtAndBreak now takes in a Consumer of the broken Item instead of a Runnable
net.minecraft.CrashReport

getFriendlyReport and saveToFile now takes in a ReportType and a list of header strings

There is also an overload that just takes in the ReportType


getSaveFile now returns a Path


net.minecraft.client.gui.screens.DisconnectedScreeen can now take in a record containing the disconnection details

DisConnectionDetails provide an optional path to the report and an optional string to the bug report link


net.minecraft.client.renderer.LevelRenderer#playStreamingMusic -> playJukeboxSong

stopJukeboxSongAndNotifyNearby stops playing the current song


net.minecraft.client.resources.sounds.SimpleSoundInstance#forRecord -> forJukeboxSong
net.minecraft.client.resources.sounds.Sound now takes in a ResourceLocation instead of a String
net.minecraft.network.PacketListener

onDisconnect now takes in DisconnectionDetails instead of a Component
fillListenerSpecificCrashDetails now takes in a CrashReport


net.minecraft.server.MinecraftServer

getServerDirectory, getFile now returns a Path
isNetherEnabled -> isLevelEnabled


net.minecraft.world.entity.ai.behavior.AnimalPanic now takes in a Function<PathfinderMob, TagKey<DamageType>> instead of a simple Predicate
net.minecraft.world.entity.ai.goal.FollowOwnerGoal no longer takes in a boolean checking whether the entity can fly

These methods have been moved to TamableAnimal


net.minecraft.world.entity.ai.goal.PanicGoal now takes in a Function<PathfinderMob, TagKey<DamageType>> instead of a simple Predicate
net.minecraft.world.entity.projectile.Projectile#deflect now returns a boolean indicating whether the deflection was successful
net.minecraft.world.item.CreativeModeTabe#getBackgroundSuffix -> getBackgroundTexture
net.minecraft.world.item.DyeColor#getTextureDiffuseColors -> getTextureDiffuseColor
net.minecraft.world.level.block.entity.BeaconBlockEntity$BeaconBeamSection#getColor now returns an integer
net.minecraft.world.level.storage.loot.LootDataType no longer takes in a directory, instead it grabs that from the location of the ResourceKey
net.minecraft.client.gui.screens.Scnree#narrationEnabled -> updateNarratorStatus(boolean)
net.minecraft.client.gui.screens.inventory.HorseInventoryScreen takes in an integer representing the number of inventory columns to display
net.minecraft.client.renderer.block.model.BlockElementFace is now a record
net.minecraft.client.resources.model.ModelBakery#getModel is now package-private
net.minecraft.client.resources.model.ModelResourceLocation is now a record

inventory method for items


net.minecraft.client.resources.model.UnbakedModel#bakeQuad no longer takes in a ResourceLocation
net.minecraft.core.BlockMath#getUVLockTransform no longer takes in a Supplier<String>
net.minecraft.gametest.framework.GameTestBatchFactory#toGameTestBatch is now public
net.minecraft.gametest.framework.GameTestRunner now takes in a boolean indicating whether to halt on error
net.minecraft.network.protocol.ProtocolInfoBuilder

serverboundProtocolUnbound -> serverboundProtocol
clientboundProtocolUnbound -> clientboundProtocol


net.minecraft.network.protocol.game.ClientboundAddEntityPacket now takes in the ServerEntity for the first two packet constructors
net.minecraft.server.MinecraftServer now implements ChunkIOErrorReporter
net.minecraft.util.ExtraCodecs#QUATERNIONF_COMPONENTS now normalizes the quaternion on encode
net.minecraft.world.entity.Entity#getAddEntityPacket now takes in a ServerEntity
net.minecraft.world.entity.Mob leash methods have been moved to Leashable
net.minecraft.world.entity.Saddleable#equipSaddle now takes in the ItemStack being equipped
net.minecraft.world.entity.ai.village.poi.PoiManager now takes in a ChunkIOErrorReporter
net.minecraft.world.level.chunk.storage.ChunkSerializer#read now takes in a RegionStorageInfo
net.minecraft.world.level.chunk.storage.SectionStorage now takes in a ChunkIOErrorReporter
net.minecraft.world.level.levelgen.structure.PoolElementStructurePiece now takes in LiquidSettings
net.minecraft.world.level.levelgen.structure.pools.JigsawPlacement#addPieces now takes in LiquidSettings
net.minecraft.world.level.levelgen.structure.pools.SinglePoolElement now takes in an Optional<LiquidSettings>

getSettings now takes in LiquidSettings


net.minecraft.world.level.levelgen.structure.pools.StructurePoolElement now takes in an LiquidSettings

single also has overloads that takes in LiquidSettings


net.minecraft.world.level.levelgen.structure.structures.JigsawStructure now takes in LiquidSettings
net.minecraft.world.level.levelgen.structure.templatesystem.StructurePlaceSettings#shouldKeepLiquids -> shouldApplyWaterlogging
net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplateManager#getPathToGeneratedStructure, createPathToStructure -> createAndValidatePathToGeneratedStructure
net.minecraft.world.level.storage.loot.predicates.LootItemRandomChanceWithEnchantedBonusCondition now takes in a float representing the chance to unenchant the item
net.minecraft.world.phys.shapes.CubePointRange's constructor is now public
net.minecraft.world.phys.shapes.VoxelShape's constructor is now protected
net.minecraft.client.gui.components.Checkbox now takes in a max width which can be passed in through the builder via Checkbox$Builder#maxWidth
net.minecraft.client.gui.components.MultiLineLabel

create methods with FormattedText has been removed
create methods with Lists now take in a component varargs
createFixed -> create
renderCentered, renderLeftAligned no longer return anything
renderBackgroundCentered is removed
TextAndWidth is now a record


net.minecraft.commands.arguments.selector.EntitySelector#predicate -> contextFreePredicate

Takes in a List<Predicate<Entity>> now


net.minecraft.world.level.border.WorldBorder

isWithinBounds now has overloads for Vec3 and four doubles representing two xz coordinates
clampToBounds now has overloads for BlockPos and Vec3
clampToBounds(AABB) is removed


net.minecraft.server.level.ServerPlayer#onInsideBlock is now public, only for this overload

Removed


net.minecraft.client.Minecraft

getSearchTree, populateSearchTree
renderOnThread


net.minecraft.client.searchtree.SearchRegistry
net.minecraft.entity.LivingEntity#canSpawnSoulSpeedParticle, spawnSoulSpeedParticle
net.minecraft.world.entity.projectile.AbstractArrow

setKnockback, getKnockback
setShotFromCrossbow


net.minecraft.world.item.ProjectileWeaponItem#hasInfiniteArrows
com.mojang.blaze3d.systems.RenderSystem

initGameThread, isOnGameThread
assertInInitPhase, isInInitPhase
assertOnGameThreadOrInit, assertOnGameThread


net.minecraft.client.gui.screens.Screen#advancePanoramaTime
net.minecraft.world.entity.EquipmentSlot#byTypeAndIndex
net.minecraft.world.entity.Mob#canWearBodyArmor

Use canUseSlot(EquipmentSlot.BODY) instead


com.mojang.blaze3d.platform.MemoryTracker
net.minecraft.server.level.ServerLevel#makeObsidianPlatform
net.minecraft.world.entity.Entity#getPassengerClosestTo
net.minecraft.client.resources.model.ModelBakery$ModelGroupKey
net.minecraft.data.worldgen.Structures#structure