some more workkkk

src/main/java/de/ellpeck/naturesaura/Helper.java

@@ -1,73 +1,63 @@
 package de.ellpeck.naturesaura;
 
-import com.mojang.blaze3d.platform.GlStateManager;
-import com.mojang.blaze3d.systems.RenderSystem;
 import de.ellpeck.naturesaura.api.NaturesAuraAPI;
 import de.ellpeck.naturesaura.api.aura.container.IAuraContainer;
 import de.ellpeck.naturesaura.api.aura.item.IAuraRecharge;
 import de.ellpeck.naturesaura.api.misc.ILevelData;
 import de.ellpeck.naturesaura.blocks.tiles.BlockEntityImpl;
 import de.ellpeck.naturesaura.chunk.AuraChunk;
-import de.ellpeck.naturesaura.compat.Compat;
 import de.ellpeck.naturesaura.misc.LevelData;
-import net.minecraft.advancements.Advancement;
+import net.minecraft.core.BlockPos;
-import net.minecraft.block.Block;
+import net.minecraft.core.Direction;
-import net.minecraft.block.BlockState;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.client.Minecraft;
+import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.entity.item.ItemEntity;
+import net.minecraft.sounds.SoundEvents;
-import net.minecraft.entity.item.ItemFrameEntity;
+import net.minecraft.sounds.SoundSource;
-import net.minecraft.entity.player.Player;
+import net.minecraft.world.InteractionHand;
-import net.minecraft.entity.player.ServerPlayer;
+import net.minecraft.world.InteractionResult;
-import net.minecraft.item.Item;
+import net.minecraft.world.entity.decoration.ItemFrame;
-import net.minecraft.item.ItemStack;
+import net.minecraft.world.entity.item.ItemEntity;
-import net.minecraft.item.crafting.Ingredient;
+import net.minecraft.world.entity.player.Player;
-import net.minecraft.nbt.INBT;
+import net.minecraft.world.item.Item;
-import net.minecraft.state.Property;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.tileentity.BlockEntity;
+import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.util.*;
+import net.minecraft.world.level.ChunkPos;
-import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.world.level.Level;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.level.block.entity.BlockEntity;
-import net.minecraft.util.math.ChunkPos;
+import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.util.math.vector.Vector3d;
+import net.minecraft.world.level.block.state.properties.Property;
-import net.minecraft.level.ILevel;
+import net.minecraft.world.level.chunk.LevelChunk;
-import net.minecraft.level.Level;
+import net.minecraft.world.phys.AABB;
-import net.minecraft.level.chunk.AbstractChunkProvider;
+import net.minecraft.world.phys.Vec3;
-import net.minecraft.level.chunk.Chunk;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.common.capabilities.Capability;
-import net.minecraftforge.common.capabilities.CapabilityManager;
 import net.minecraftforge.common.capabilities.ICapabilityProvider;
 import net.minecraftforge.common.util.LazyOptional;
 import net.minecraftforge.items.IItemHandler;
-import net.minecraftforge.items.IItemHandlerModifiable;
 import net.minecraftforge.registries.ForgeRegistries;
 import net.minecraftforge.registries.IForgeRegistry;
 import net.minecraftforge.registries.IForgeRegistryEntry;
-import org.apache.commons.lang3.tuple.ImmutableTriple;
 import org.lwjgl.opengl.GL11;
-import top.theillusivec4.curios.api.CuriosApi;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
-import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
 import java.util.List;
 import java.util.Locale;
-import java.util.Optional;
 import java.util.function.Consumer;
 import java.util.function.Function;
 import java.util.function.Predicate;
 
 public final class Helper {
 
-    public static boolean getTileEntitiesInArea(ILevel level, BlockPos pos, int radius, Function<BlockEntity, Boolean> consumer) {
+    public static boolean getBlockEntitiesInArea(Level level, BlockPos pos, int radius, Function<BlockEntity, Boolean> consumer) {
-        for (int x = pos.getX() - radius >> 4; x <= pos.getX() + radius >> 4; x++) {
+        for (var x = pos.getX() - radius >> 4; x <= pos.getX() + radius >> 4; x++) {
-            for (int z = pos.getZ() - radius >> 4; z <= pos.getZ() + radius >> 4; z++) {
+            for (var z = pos.getZ() - radius >> 4; z <= pos.getZ() + radius >> 4; z++) {
-                Chunk chunk = getLoadedChunk(level, x, z);
+                var chunk = getLoadedChunk(level, x, z);
                 if (chunk != null) {
-                    for (BlockPos tilePos : chunk.getTileEntitiesPos()) {
+                    for (var tilePos : chunk.getBlockEntitiesPos()) {
-                        if (tilePos.distanceSq(pos) <= radius * radius)
+                        if (tilePos.distSqr(pos) <= radius * radius)
                             if (consumer.apply(chunk.getBlockEntity(tilePos)))
                                 return true;
                     }
@@ -78,77 +68,64 @@ public final class Helper {
     }
 
     public static void getAuraChunksWithSpotsInArea(Level level, BlockPos pos, int radius, Consumer<AuraChunk> consumer) {
-        LevelData data = (LevelData) ILevelData.getLevelData(level);
+        var data = (LevelData) ILevelData.getLevelData(level);
-        for (int x = pos.getX() - radius >> 4; x <= pos.getX() + radius >> 4; x++) {
+        for (var x = pos.getX() - radius >> 4; x <= pos.getX() + radius >> 4; x++) {
-            for (int z = pos.getZ() - radius >> 4; z <= pos.getZ() + radius >> 4; z++) {
+            for (var z = pos.getZ() - radius >> 4; z <= pos.getZ() + radius >> 4; z++) {
-                AuraChunk chunk = data.auraChunksWithSpots.get(ChunkPos.asLong(x, z));
+                var chunk = data.auraChunksWithSpots.get(ChunkPos.asLong(x, z));
                 if (chunk != null)
                     consumer.accept(chunk);
             }
         }
     }
 
-    public static List<ItemFrameEntity> getAttachedItemFrames(Level level, BlockPos pos) {
+    public static List<ItemFrame> getAttachedItemFrames(Level level, BlockPos pos) {
-        List<ItemFrameEntity> frames = level.getEntitiesWithinAABB(ItemFrameEntity.class, new AxisAlignedBB(pos).grow(0.25));
+        var frames = level.getEntitiesOfClass(ItemFrame.class, new AABB(pos).inflate(0.25));
-        for (int i = frames.size() - 1; i >= 0; i--) {
+        for (var i = frames.size() - 1; i >= 0; i--) {
-            ItemFrameEntity frame = frames.get(i);
+            var frame = frames.get(i);
-            BlockPos framePos = frame.getHangingPosition().offset(frame.getHorizontalFacing().getOpposite());
+            var framePos = frame.getPos().relative(frame.getDirection().getOpposite());
             if (!pos.equals(framePos))
                 frames.remove(i);
         }
         return frames;
     }
 
-    public static Chunk getLoadedChunk(ILevel level, int x, int z) {
+    public static LevelChunk getLoadedChunk(Level level, int x, int z) {
         // DO NOT EDIT PLEASE FOR THE LOVE OF GOD
         // This is very finicky and easily causes the game to hang for some reason
-        AbstractChunkProvider provider = level.getChunkProvider();
+        var provider = level.getChunkSource();
-        if (provider.isChunkLoaded(new ChunkPos(x, z)))
+        if (provider.hasChunk(x, z))
             return provider.getChunk(x, z, false);
         return null;
     }
 
     public static int blendColors(int c1, int c2, float ratio) {
-        int a = (int) ((c1 >> 24 & 0xFF) * ratio + (c2 >> 24 & 0xFF) * (1 - ratio));
+        var a = (int) ((c1 >> 24 & 0xFF) * ratio + (c2 >> 24 & 0xFF) * (1 - ratio));
-        int r = (int) ((c1 >> 16 & 0xFF) * ratio + (c2 >> 16 & 0xFF) * (1 - ratio));
+        var r = (int) ((c1 >> 16 & 0xFF) * ratio + (c2 >> 16 & 0xFF) * (1 - ratio));
-        int g = (int) ((c1 >> 8 & 0xFF) * ratio + (c2 >> 8 & 0xFF) * (1 - ratio));
+        var g = (int) ((c1 >> 8 & 0xFF) * ratio + (c2 >> 8 & 0xFF) * (1 - ratio));
-        int b = (int) ((c1 & 0xFF) * ratio + (c2 & 0xFF) * (1 - ratio));
+        var b = (int) ((c1 & 0xFF) * ratio + (c2 & 0xFF) * (1 - ratio));
         return (a & 255) << 24 | (r & 255) << 16 | (g & 255) << 8 | b & 255;
     }
 
     public static boolean areItemsEqual(ItemStack first, ItemStack second, boolean nbt) {
-        if (!ItemStack.areItemsEqual(first, second))
+        if (!ItemStack.isSame(first, second))
             return false;
-        return !nbt || ItemStack.areItemStackTagsEqual(first, second);
+        return !nbt || ItemStack.tagMatches(first, second);
     }
 
-    @OnlyIn(Dist.CLIENT)
+    public static InteractionResult putStackOnTile(Player player, InteractionHand hand, BlockPos pos, int slot, boolean sound) {
-    public static void renderItemInGui(ItemStack stack, int x, int y, float scale) {
+        var tile = player.level.getBlockEntity(pos);
-        RenderSystem.pushMatrix();
-        GlStateManager.enableBlend();
-        GlStateManager.enableDepthTest();
-        RenderSystem.enableRescaleNormal();
-        RenderSystem.translatef(x, y, 0);
-        RenderSystem.scalef(scale, scale, scale);
-        Minecraft.getInstance().getItemRenderer().renderItemAndEffectIntoGUI(stack, 0, 0);
-        Minecraft.getInstance().getItemRenderer().renderItemOverlayIntoGUI(Minecraft.getInstance().fontRenderer, stack, 0, 0, null);
-        RenderSystem.popMatrix();
-    }
-
-    public static InteractionResult putStackOnTile(Player player, Hand hand, BlockPos pos, int slot, boolean sound) {
-        BlockEntity tile = player.level.getBlockEntity(pos);
         if (tile instanceof BlockEntityImpl) {
-            IItemHandlerModifiable handler = ((BlockEntityImpl) tile).getItemHandler();
+            var handler = ((BlockEntityImpl) tile).getItemHandler();
             if (handler != null) {
-                ItemStack handStack = player.getHeldItem(hand);
+                var handStack = player.getItemInHand(hand);
                 if (!handStack.isEmpty()) {
-                    ItemStack remain = handler.insertItem(slot, handStack, player.level.isClientSide);
+                    var remain = handler.insertItem(slot, handStack, player.level.isClientSide);
-                    if (!ItemStack.areItemStacksEqual(remain, handStack)) {
+                    if (!ItemStack.isSame(remain, handStack)) {
                         if (sound)
                             player.level.playSound(player, pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5,
-                                    SoundEvents.ENTITY_ITEM_FRAME_ADD_ITEM, SoundCategory.PLAYERS, 0.75F, 1F);
+                                    SoundEvents.ITEM_FRAME_ADD_ITEM, SoundSource.PLAYERS, 0.75F, 1F);
                         if (!player.level.isClientSide)
-                            player.setHeldItem(hand, remain);
+                            player.setItemInHand(hand, remain);
                         return InteractionResult.SUCCESS;
                     }
                 }
@@ -156,12 +133,12 @@ public final class Helper {
                 if (!handler.getStackInSlot(slot).isEmpty()) {
                     if (sound)
                         player.level.playSound(player, pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5,
-                                SoundEvents.ENTITY_ITEM_FRAME_REMOVE_ITEM, SoundCategory.PLAYERS, 0.75F, 1F);
+                                SoundEvents.ITEM_FRAME_REMOVE_ITEM, SoundSource.PLAYERS, 0.75F, 1F);
                     if (!player.level.isClientSide) {
-                        ItemStack stack = handler.getStackInSlot(slot);
+                        var stack = handler.getStackInSlot(slot);
-                        if (!player.addItemStackToInventory(stack)) {
+                        if (!player.addItem(stack)) {
-                            ItemEntity item = new ItemEntity(player.level, player.getPosX(), player.getPosY(), player.getPosZ(), stack);
+                            var item = new ItemEntity(player.level, player.getX(), player.getY(), player.getZ(), stack);
-                            player.level.addEntity(item);
+                            player.level.addFreshEntity(item);
                         }
                         handler.setStackInSlot(slot, ItemStack.EMPTY);
                     }
@@ -191,8 +168,8 @@ public final class Helper {
     }
 
     public static boolean rechargeAuraItem(ItemStack stack, IAuraContainer container, int toDrain) {
-        if (stack.getDamage() > 0 && container.drainAura(toDrain, true) >= toDrain) {
+        if (stack.getDamageValue() > 0 && container.drainAura(toDrain, true) >= toDrain) {
-            stack.setDamage(stack.getDamage() - 1);
+            stack.setDamageValue(stack.getDamageValue() - 1);
             container.drainAura(toDrain, false);
             return true;
         }
@@ -200,15 +177,15 @@ public final class Helper {
     }
 
     public static BlockState getStateFromString(String raw) {
-        String[] split = raw.split("\\[");
+        var split = raw.split("\\[");
-        Block block = ForgeRegistries.BLOCKS.getValue(new ResourceLocation(split[0]));
+        var block = ForgeRegistries.BLOCKS.getValue(new ResourceLocation(split[0]));
         if (block != null) {
-            BlockState state = block.getDefaultState();
+            var state = block.defaultBlockState();
             if (split.length > 1) {
-                for (String part : split[1].replace("]", "").split(",")) {
+                for (var part : split[1].replace("]", "").split(",")) {
-                    String[] keyValue = part.split("=");
+                    var keyValue = part.split("=");
-                    for (Property<?> prop : state.getProperties()) {
+                    for (var prop : state.getProperties()) {
-                        BlockState changed = findProperty(state, prop, keyValue[0], keyValue[1]);
+                        var changed = findProperty(state, prop, keyValue[0], keyValue[1]);
                         if (changed != null) {
                             state = changed;
                             break;
@@ -223,39 +200,23 @@ public final class Helper {
 
     private static <T extends Comparable<T>> BlockState findProperty(BlockState state, Property<T> prop, String key, String newValue) {
         if (key.equals(prop.getName()))
-            for (T value : prop.getAllowedValues())
+            for (var value : prop.getPossibleValues())
                 if (prop.getName(value).equals(newValue))
-                    return state.with(prop, value);
+                    return state.setValue(prop, value);
         return null;
     }
 
-    public static <T> void registerCap(Class<T> type) {
-        CapabilityManager.INSTANCE.register(type, new Capability.IStorage<T>() {
-            @Override
-            public void readNBT(Capability<T> capability, T instance, Direction side, INBT nbt) {
-
-            }
-
-            @Nullable
-            @Override
-            public INBT writeNBT(Capability capability, Object instance, Direction side) {
-                return null;
-            }
-        }, () -> null);
-    }
-
     public static void addAdvancement(Player player, ResourceLocation advancement, String criterion) {
-        if (!(player instanceof ServerPlayer))
+        if (!(player instanceof ServerPlayer playerMp))
             return;
-        ServerPlayer playerMp = (ServerPlayer) player;
+        var adv = playerMp.getLevel().getServer().getAdvancements().getAdvancement(advancement);
-        Advancement adv = playerMp.getServerLevel().getServer().getAdvancementManager().getAdvancement(advancement);
         if (adv != null)
-            playerMp.getAdvancements().grantCriterion(adv, criterion);
+            playerMp.getAdvancements().award(adv, criterion);
     }
 
     public static int getIngredientAmount(Ingredient ingredient) {
-        int highestAmount = 0;
+        var highestAmount = 0;
-        for (ItemStack stack : ingredient.getMatchingStacks())
+        for (var stack : ingredient.getItems())
             if (stack.getCount() > highestAmount)
                 highestAmount = stack.getCount();
         return highestAmount;
@@ -290,8 +251,8 @@ public final class Helper {
     }
 
     public static boolean isHoldingItem(Player player, Item item) {
-        for (Hand hand : Hand.values()) {
+        for (var hand : InteractionHand.values()) {
-            ItemStack stack = player.getHeldItem(hand);
+            var stack = player.getItemInHand(hand);
             if (!stack.isEmpty() && stack.getItem() == item)
                 return true;
         }
@@ -299,22 +260,22 @@ public final class Helper {
     }
 
     public static boolean isEmpty(IItemHandler handler) {
-        for (int i = 0; i < handler.getSlots(); i++)
+        for (var i = 0; i < handler.getSlots(); i++)
             if (!handler.getStackInSlot(i).isEmpty())
                 return false;
         return true;
     }
 
-    public static AxisAlignedBB aabb(Vector3d pos) {
+    public static AABB aabb(Vec3 pos) {
-        return new AxisAlignedBB(pos.x, pos.y, pos.z, pos.x, pos.y, pos.z);
+        return new AABB(pos.x, pos.y, pos.z, pos.x, pos.y, pos.z);
     }
 
-    // This is how @ObjectHolder _SHOULD_ work...
+    // This is how @ObjectHolder SHOULD work...
-    public static <T extends IForgeRegistryEntry<T>> void populateObjectHolders(Class clazz, IForgeRegistry<T> registry) {
+    public static <T extends IForgeRegistryEntry<T>> void populateObjectHolders(Class<?> clazz, IForgeRegistry<T> registry) {
-        for (Field entry : clazz.getFields()) {
+        for (var entry : clazz.getFields()) {
             if (!Modifier.isStatic(entry.getModifiers()))
                 continue;
-            ResourceLocation location = new ResourceLocation(NaturesAura.MOD_ID, entry.getName().toLowerCase(Locale.ROOT));
+            var location = new ResourceLocation(NaturesAura.MOD_ID, entry.getName().toLowerCase(Locale.ROOT));
             if (!registry.containsKey(location)) {
                 NaturesAura.LOGGER.fatal("Couldn't find entry named " + location + " in registry " + registry.getRegistryName());
                 continue;
@@ -328,13 +289,14 @@ public final class Helper {
     }
 
     public static ItemStack getEquippedItem(Predicate<ItemStack> predicate, Player player) {
-        if (Compat.hasCompat("curios")) {
+        // TODO Curios
+/*        if (Compat.hasCompat("curios")) {
             Optional<ItemStack> stack = CuriosApi.getCuriosHelper().findEquippedCurio(predicate, player).map(ImmutableTriple::getRight);
             if (stack.isPresent())
                 return stack.get();
-        }
+        }*/
-        for (int i = 0; i < player.inventory.getSizeInventory(); i++) {
+        for (var i = 0; i < player.getInventory().getContainerSize(); i++) {
-            ItemStack slot = player.inventory.getStackInSlot(i);
+            var slot = player.getInventory().getItem(i);
             if (!slot.isEmpty() && predicate.test(slot))
                 return slot;
         }

src/main/java/de/ellpeck/naturesaura/NaturesAura.java

@@ -17,11 +17,10 @@ import de.ellpeck.naturesaura.proxy.IProxy;
 import de.ellpeck.naturesaura.proxy.ServerProxy;
 import de.ellpeck.naturesaura.recipes.ModRecipes;
 import de.ellpeck.naturesaura.reg.ModRegistry;
-import net.minecraft.item.ItemGroup;
+import net.minecraft.world.item.CreativeModeTab;
-import net.minecraft.item.ItemStack;
+import net.minecraft.world.item.ItemStack;
 import net.minecraftforge.common.ForgeConfigSpec;
 import net.minecraftforge.common.MinecraftForge;
-import net.minecraftforge.fml.DeferredWorkQueue;
 import net.minecraftforge.fml.DistExecutor;
 import net.minecraftforge.fml.ModLoadingContext;
 import net.minecraftforge.fml.common.Mod;
@@ -37,9 +36,9 @@ public final class NaturesAura {
     public static final String MOD_NAME = "Nature's Aura";
 
     public static final Logger LOGGER = LogManager.getLogger(MOD_NAME);
-    public static final ItemGroup CREATIVE_TAB = new ItemGroup(MOD_ID) {
+    public static final CreativeModeTab CREATIVE_TAB = new CreativeModeTab(MOD_ID) {
         @Override
-        public ItemStack createIcon() {
+        public ItemStack makeIcon() {
             return new ItemStack(ModItems.GOLD_LEAF);
         }
     };

src/main/java/de/ellpeck/naturesaura/api/misc/WeightedOre.java

@@ -1,9 +1,9 @@
 package de.ellpeck.naturesaura.api.misc;
 
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.util.WeightedRandom;
+import net.minecraft.util.random.WeightedEntry;
 
-public class WeightedOre extends WeightedRandom.Item {
+public class WeightedOre extends WeightedEntry.IntrusiveBase {
 
     public final ResourceLocation tag;
 

src/main/java/de/ellpeck/naturesaura/api/multiblock/Matcher.java

@@ -1,11 +1,11 @@
 package de.ellpeck.naturesaura.api.multiblock;
 
-import net.minecraft.block.Block;
+import net.minecraft.core.BlockPos;
-import net.minecraft.block.BlockState;
+import net.minecraft.tags.Tag;
-import net.minecraft.block.Blocks;
+import net.minecraft.world.level.Level;
-import net.minecraft.tags.ITag;
+import net.minecraft.world.level.block.Block;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.level.block.Blocks;
-import net.minecraft.level.Level;
+import net.minecraft.world.level.block.state.BlockState;
 
 public class Matcher {
 
@@ -18,11 +18,11 @@ public class Matcher {
     }
 
     public static Matcher wildcard() {
-        return new Matcher(Blocks.AIR.getDefaultState(), null);
+        return new Matcher(Blocks.AIR.defaultBlockState(), null);
     }
 
-    public static Matcher tag(Block defaultBlock, ITag.INamedTag tag) {
+    public static Matcher tag(Block defaultBlock, Tag.Named<?> tag) {
-        return new Matcher(defaultBlock.getDefaultState(), (level, start, offset, pos, state, c) -> state.getBlock().getTags().contains(tag.getName()));
+        return new Matcher(defaultBlock.defaultBlockState(), (level, start, offset, pos, state, c) -> state.getBlock().getTags().contains(tag.getName()));
     }
 
     public BlockState getDefaultState() {
@@ -34,6 +34,7 @@ public class Matcher {
     }
 
     public interface ICheck {
+
         boolean matches(Level level, BlockPos start, BlockPos offset, BlockPos pos, BlockState state, char c);
     }
 }

src/main/java/de/ellpeck/naturesaura/blocks/BlockAnimalGenerator.java

@@ -17,7 +17,7 @@ import net.minecraft.entity.passive.AnimalEntity;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
@@ -51,7 +51,7 @@ public class BlockAnimalGenerator extends BlockContainerImpl implements IVisuali
         if (entity.level.isClientSide || !(entity instanceof AnimalEntity) || entity instanceof IMob || entity instanceof INPC)
             return;
         BlockPos pos = entity.getPosition();
-        Helper.getTileEntitiesInArea(entity.level, pos, 5, tile -> {
+        Helper.getBlockEntitiesInArea(entity.level, pos, 5, tile -> {
             if (!(tile instanceof BlockEntityAnimalGenerator))
                 return false;
             BlockEntityAnimalGenerator gen = (BlockEntityAnimalGenerator) tile;
@@ -67,8 +67,8 @@ public class BlockAnimalGenerator extends BlockContainerImpl implements IVisuali
             float amountMod = child ? 0.667F : 1;
 
             int timeAlive = data.getInt(NaturesAura.MOD_ID + ":time_alive");
-            int time = Math.min(MathHelper.floor((timeAlive - 15000) / 500F * timeMod), 200);
+            int time = Math.min(Mth.floor((timeAlive - 15000) / 500F * timeMod), 200);
-            int amount = Math.min(MathHelper.floor((timeAlive - 8000) / 2F * amountMod), 25000);
+            int amount = Math.min(Mth.floor((timeAlive - 8000) / 2F * amountMod), 25000);
             if (time <= 0 || amount <= 0)
                 return false;
             gen.setGenerationValues(time, amount);

src/main/java/de/ellpeck/naturesaura/blocks/BlockChunkLoader.java

@@ -15,7 +15,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.BlockEntity;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.shapes.ISelectionContext;
 import net.minecraft.util.math.shapes.VoxelShape;
 import net.minecraft.util.text.ITextComponent;
@@ -68,7 +68,7 @@ public class BlockChunkLoader extends BlockContainerImpl implements IVisualizabl
         BlockEntity tile = levelIn.getBlockEntity(pos);
         if (tile instanceof BlockEntityChunkLoader) {
             int range = ((BlockEntityChunkLoader) tile).range();
-            for (int i = MathHelper.ceil(range / 8F); i > 0; i--) {
+            for (int i = Mth.ceil(range / 8F); i > 0; i--) {
                 NaturesAuraAPI.instance().spawnMagicParticle(
                         pos.getX() + levelIn.rand.nextFloat(), pos.getY() + levelIn.rand.nextFloat(), pos.getZ() + levelIn.rand.nextFloat(),
                         0, 0, 0, 0xa12dff, 1F + levelIn.rand.nextFloat(), 100, 0, false, true);

src/main/java/de/ellpeck/naturesaura/blocks/BlockGratedChute.java

@@ -19,7 +19,7 @@ import net.minecraft.util.Direction;
 import net.minecraft.util.Hand;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.BlockRayTraceResult;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.shapes.IBooleanFunction;
 import net.minecraft.util.math.shapes.ISelectionContext;
 import net.minecraft.util.math.shapes.VoxelShape;
@@ -135,7 +135,7 @@ public class BlockGratedChute extends BlockContainerImpl implements ICustomBlock
             ItemStack stack = handler.getStackInSlot(0);
             if (stack.isEmpty())
                 return 0;
-            return MathHelper.ceil(stack.getCount() / (float) stack.getMaxStackSize() * 15);
+            return Mth.ceil(stack.getCount() / (float) stack.getMaxStackSize() * 15);
         } else
             return 0;
     }

src/main/java/de/ellpeck/naturesaura/blocks/BlockOakGenerator.java

@@ -36,7 +36,7 @@ public class BlockOakGenerator extends BlockContainerImpl implements IVisualizab
         BlockPos pos = event.getPos();
         if (level instanceof Level && !level.isClientSide() && IAuraType.forLevel(level).isSimilar(NaturesAuraAPI.TYPE_OVERWORLD)
                 && level.getBlockState(pos).getBlock() instanceof SaplingBlock) {
-            Helper.getTileEntitiesInArea(level, pos, 10, tile -> {
+            Helper.getBlockEntitiesInArea(level, pos, 10, tile -> {
                 if (!(tile instanceof BlockEntityOakGenerator))
                     return false;
 

src/main/java/de/ellpeck/naturesaura/blocks/BlockPickupStopper.java

@@ -34,7 +34,7 @@ public class BlockPickupStopper extends BlockContainerImpl implements IVisualiza
         if (player != null && !player.isSneaking()) {
             ItemEntity item = event.getItem();
             BlockPos pos = item.getPosition();
-            Helper.getTileEntitiesInArea(item.level, pos, 8, tile -> {
+            Helper.getBlockEntitiesInArea(item.level, pos, 8, tile -> {
                 if (!(tile instanceof BlockEntityPickupStopper))
                     return false;
                 BlockEntityPickupStopper stopper = (BlockEntityPickupStopper) tile;

src/main/java/de/ellpeck/naturesaura/blocks/BlockSlimeSplitGenerator.java

@@ -54,7 +54,7 @@ public class BlockSlimeSplitGenerator extends BlockContainerImpl implements IVis
             int size = slime.getSlimeSize();
             if (size <= 1)
                 return;
-            Helper.getTileEntitiesInArea(entity.level, entity.getPosition(), 8, tile -> {
+            Helper.getBlockEntitiesInArea(entity.level, entity.getPosition(), 8, tile -> {
                 if (!(tile instanceof BlockEntitySlimeSplitGenerator))
                     return false;
                 BlockEntitySlimeSplitGenerator gen = (BlockEntitySlimeSplitGenerator) tile;

src/main/java/de/ellpeck/naturesaura/blocks/multi/Multiblocks.java

@@ -8,12 +8,12 @@ import de.ellpeck.naturesaura.blocks.BlockNatureAltar;
 import de.ellpeck.naturesaura.blocks.ModBlocks;
 import de.ellpeck.naturesaura.data.BlockTagProvider;
 import de.ellpeck.naturesaura.recipes.ModRecipes;
-import net.minecraft.block.Blocks;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.block.SaplingBlock;
-import net.minecraft.block.material.Material;
-import net.minecraft.item.ItemStack;
 import net.minecraft.tags.BlockTags;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.SaplingBlock;
+import net.minecraft.world.level.material.Material;
 
 public final class Multiblocks {
 
@@ -38,23 +38,23 @@ public final class Multiblocks {
             'B', Blocks.NETHER_BRICKS,
             'W', Matcher.tag(Blocks.CRIMSON_PLANKS, BlockTagProvider.NETHER_ALTAR_WOOD),
             'M', ModBlocks.GOLD_NETHER_BRICK,
-            '0', ModBlocks.NATURE_ALTAR.getDefaultState().with(BlockNatureAltar.NETHER, true),
+            '0', ModBlocks.NATURE_ALTAR.defaultBlockState().setValue(BlockNatureAltar.NETHER, true),
             ' ', Matcher.wildcard());
     public static final IMultiblock TREE_RITUAL = NaturesAuraAPI.instance().createMultiblock(
             new ResourceLocation(NaturesAura.MOD_ID, "tree_ritual"),
             new String[][]{
                     {"    W    ", " W     W ", "   GGG   ", "  GG GG  ", "W G 0 G W", "  GG GG  ", "   GGG   ", " W     W ", "    W    "}},
-            'W', new Matcher(ModBlocks.WOOD_STAND.getDefaultState(),
+            'W', new Matcher(ModBlocks.WOOD_STAND.defaultBlockState(),
                     (level, start, offset, pos, state, c) -> level != null || state.getBlock() == ModBlocks.WOOD_STAND),
             'G', ModBlocks.GOLD_POWDER,
-            '0', new Matcher(Blocks.OAK_SAPLING.getDefaultState(),
+            '0', new Matcher(Blocks.OAK_SAPLING.defaultBlockState(),
                     (level, start, offset, pos, state, c) -> {
                         if (state.getBlock() instanceof SaplingBlock || state.getMaterial() == Material.WOOD)
                             return true;
                         // try-catch to prevent blocks that need to have been placed crashing here
                         try {
-                            ItemStack stack = state.getBlock().getItem(level, pos, state);
+                            ItemStack stack = state.getBlock().getCloneItemStack(level, pos, state);
-                            return !stack.isEmpty() && level.getRecipeManager().getRecipes(ModRecipes.TREE_RITUAL_TYPE, null, null).stream().anyMatch(r -> r.saplingType.test(stack));
+                            return !stack.isEmpty() && level.getRecipeManager().getRecipesFor(ModRecipes.TREE_RITUAL_TYPE, null, null).stream().anyMatch(r -> r.saplingType.test(stack));
                         } catch (Exception e) {
                             return false;
                         }
@@ -76,7 +76,7 @@ public final class Multiblocks {
             new ResourceLocation(NaturesAura.MOD_ID, "offering_table"),
             new String[][]{
                     {"  RRRRR  ", " R     R ", "R  RRR  R", "R R   R R", "R R 0 R R", "R R   R R", "R  RRR  R", " R     R ", "  RRRRR  "}},
-            'R', new Matcher(Blocks.POPPY.getDefaultState(),
+            'R', new Matcher(Blocks.POPPY.defaultBlockState(),
                     (level, start, offset, pos, state, c) -> BlockTags.SMALL_FLOWERS.contains(state.getBlock())),
             '0', ModBlocks.OFFERING_TABLE,
             ' ', Matcher.wildcard());

src/main/java/de/ellpeck/naturesaura/blocks/tiles/BlockEntityAnimalContainer.java

@@ -3,16 +3,11 @@ package de.ellpeck.naturesaura.blocks.tiles;
 import de.ellpeck.naturesaura.packet.PacketHandler;
 import de.ellpeck.naturesaura.packet.PacketParticles;
 import net.minecraft.core.BlockPos;
-import net.minecraft.entity.passive.Animal;
-import net.minecraft.tileentity.ITickableBlockEntity;
-import net.minecraft.util.math.AxisAlignedBB;
-import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.entity.animal.Animal;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.phys.Vec3;
+import net.minecraft.world.phys.AABB;
 
 import java.util.HashSet;
-import java.util.List;
 import java.util.Set;
 
 public class BlockEntityAnimalContainer extends BlockEntityImpl implements ITickableBlockEntity {
@@ -35,19 +30,19 @@ public class BlockEntityAnimalContainer extends BlockEntityImpl implements ITick
     public void tick() {
         if (this.level.isClientSide)
             return;
-        int radius = this.getRadius();
+        var radius = this.getRadius();
-        Set<Animal> animalsInRange = new HashSet<>(this.level.getEntitiesWithinAABB(Animal.class, new AxisAlignedBB(this.worldPosition).grow(radius - 1)));
+        Set<Animal> animalsInRange = new HashSet<>(this.level.getEntitiesOfClass(Animal.class, new AABB(this.worldPosition).inflate(radius - 1)));
-        List<Animal> animalsOutRange = this.level.getEntitiesWithinAABB(Animal.class, new AxisAlignedBB(this.worldPosition).grow(radius + 1));
+        var animalsOutRange = this.level.getEntitiesOfClass(Animal.class, new AABB(this.worldPosition).inflate(radius + 1));
-        for (Animal animal : animalsOutRange) {
+        for (var animal : animalsOutRange) {
             if (animalsInRange.contains(animal))
                 continue;
-            Vec3 pos = animal.position();
+            var pos = animal.position();
-            Vec3 distance = pos.subtract(this.worldPosition.getX(), pos.y, this.worldPosition.getZ());
+            var distance = pos.subtract(this.worldPosition.getX(), pos.y, this.worldPosition.getZ());
             distance = distance.normalize().scale(-0.15F);
-            animal.setMotion(distance);
+            animal.setDeltaMovement(distance);
 
-            if (this.level.rand.nextBoolean()) {
+            if (this.level.random.nextBoolean()) {
-                Vec3 eye = animal.getEyePosition(1).add(animal.getLookAngle());
+                var eye = animal.getEyePosition(1).add(animal.getLookAngle());
                 PacketHandler.sendToAllAround(this.level, this.worldPosition, 32,
                         new PacketParticles((float) eye.x, (float) eye.y, (float) eye.z, PacketParticles.Type.ANIMAL_CONTAINER));
             }

src/main/java/de/ellpeck/naturesaura/blocks/tiles/BlockEntityAnimalGenerator.java

@@ -1,18 +1,17 @@
 package de.ellpeck.naturesaura.blocks.tiles;
 
-import de.ellpeck.naturesaura.api.aura.chunk.IAuraChunk;
 import de.ellpeck.naturesaura.packet.PacketHandler;
 import de.ellpeck.naturesaura.packet.PacketParticles;
-import net.minecraft.tileentity.ITickableBlockEntity;
+import net.minecraft.core.BlockPos;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.level.block.state.BlockState;
 
 public class BlockEntityAnimalGenerator extends BlockEntityImpl implements ITickableBlockEntity {
 
     private int timeRemaining;
     private int amountToRelease;
 
-    public BlockEntityAnimalGenerator() {
+    public BlockEntityAnimalGenerator(BlockPos pos, BlockState state) {
-        super(ModTileEntities.ANIMAL_GENERATOR);
+        super(ModTileEntities.ANIMAL_GENERATOR, pos, state);
     }
 
     @Override

src/main/java/de/ellpeck/naturesaura/blocks/tiles/BlockEntityAnimalSpawner.java

@@ -9,16 +9,16 @@ import de.ellpeck.naturesaura.packet.PacketHandler;
 import de.ellpeck.naturesaura.packet.PacketParticles;
 import de.ellpeck.naturesaura.recipes.AnimalSpawnerRecipe;
 import de.ellpeck.naturesaura.recipes.ModRecipes;
-import net.minecraft.entity.Entity;
+import net.minecraft.core.BlockPos;
-import net.minecraft.entity.item.ItemEntity;
-import net.minecraft.item.ItemStack;
-import net.minecraft.item.crafting.Ingredient;
 import net.minecraft.nbt.CompoundTag;
-import net.minecraft.tileentity.ITickableBlockEntity;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.Mth;
-import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.world.entity.Entity;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.entity.item.ItemEntity;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.crafting.Ingredient;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.phys.AABB;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -32,8 +32,8 @@ public class BlockEntityAnimalSpawner extends BlockEntityImpl implements ITickab
     private int time;
     private Entity entityClient;
 
-    public BlockEntityAnimalSpawner() {
+    public BlockEntityAnimalSpawner(BlockPos pos, BlockState state) {
-        super(ModTileEntities.ANIMAL_SPAWNER);
+        super(ModTileEntities.ANIMAL_SPAWNER, pos, state);
     }
 
     @Override
@@ -51,29 +51,29 @@ public class BlockEntityAnimalSpawner extends BlockEntityImpl implements ITickab
             }
 
             if (this.currentRecipe != null) {
-                int drain = MathHelper.ceil(this.currentRecipe.aura / (float) this.currentRecipe.time * 10F);
+                int drain = Mth.ceil(this.currentRecipe.aura / (float) this.currentRecipe.time * 10F);
                 BlockPos spot = IAuraChunk.getHighestSpot(this.level, this.worldPosition, 35, this.worldPosition);
                 IAuraChunk.getAuraChunk(this.level, spot).drainAura(spot, drain);
 
                 this.time += 10;
                 if (this.time >= this.currentRecipe.time) {
                     Entity entity = this.currentRecipe.makeEntity(this.level, new BlockPos(this.spawnX, this.worldPosition.getY() + 1, this.spawnZ));
-                    this.level.addEntity(entity);
+                    this.level.addFreshEntity(entity);
 
                     this.currentRecipe = null;
                     this.time = 0;
                     this.sendToClients();
                 }
             } else {
-                List<ItemEntity> items = this.level.getEntitiesWithinAABB(ItemEntity.class,
+                List<ItemEntity> items = this.level.getEntitiesOfClass(ItemEntity.class,
-                        new AxisAlignedBB(this.worldPosition).grow(2));
+                        new AABB(this.worldPosition).inflate(2));
 
-                for (AnimalSpawnerRecipe recipe : this.level.getRecipeManager().getRecipes(ModRecipes.ANIMAL_SPAWNER_TYPE, null, null)) {
+                for (AnimalSpawnerRecipe recipe : this.level.getRecipeManager().getRecipesFor(ModRecipes.ANIMAL_SPAWNER_TYPE, null, null)) {
                     if (recipe.ingredients.length != items.size())
                         continue;
                     List<Ingredient> required = new ArrayList<>(Arrays.asList(recipe.ingredients));
                     for (ItemEntity item : items) {
-                        if (!item.isAlive() || item.cannotPickup())
+                        if (!item.isAlive() || item.hasPickUpDelay())
                             break;
                         ItemStack stack = item.getItem();
                         if (stack.isEmpty())
@@ -89,14 +89,14 @@ public class BlockEntityAnimalSpawner extends BlockEntityImpl implements ITickab
                         continue;
 
                     for (ItemEntity item : items) {
-                        item.remove();
+                        item.remove(Entity.RemovalReason.KILLED);
                         PacketHandler.sendToAllAround(this.level, this.worldPosition, 32,
-                                new PacketParticles((float) item.getPosX(), (float) item.getPosY(), (float) item.getPosZ(), PacketParticles.Type.ANIMAL_SPAWNER));
+                                new PacketParticles((float) item.getX(), (float) item.getY(), (float) item.getZ(), PacketParticles.Type.ANIMAL_SPAWNER));
                     }
 
                     this.currentRecipe = recipe;
-                    this.spawnX = this.worldPosition.getX() + 0.5 + this.level.rand.nextFloat() * 4 - 2;
+                    this.spawnX = this.worldPosition.getX() + 0.5 + this.level.random.nextFloat() * 4 - 2;
-                    this.spawnZ = this.worldPosition.getZ() + 0.5 + this.level.rand.nextFloat() * 4 - 2;
+                    this.spawnZ = this.worldPosition.getZ() + 0.5 + this.level.random.nextFloat() * 4 - 2;
                     this.sendToClients();
                     break;
                 }
@@ -110,26 +110,26 @@ public class BlockEntityAnimalSpawner extends BlockEntityImpl implements ITickab
             }
 
             NaturesAuraAPI.instance().spawnParticleStream(
-                    this.worldPosition.getX() + (float) this.level.rand.nextGaussian() * 5F,
+                    this.worldPosition.getX() + (float) this.level.random.nextGaussian() * 5F,
-                    this.worldPosition.getY() + 1 + this.level.rand.nextFloat() * 5F,
+                    this.worldPosition.getY() + 1 + this.level.random.nextFloat() * 5F,
-                    this.worldPosition.getZ() + (float) this.level.rand.nextGaussian() * 5F,
+                    this.worldPosition.getZ() + (float) this.level.random.nextGaussian() * 5F,
-                    this.worldPosition.getX() + this.level.rand.nextFloat(),
+                    this.worldPosition.getX() + this.level.random.nextFloat(),
-                    this.worldPosition.getY() + this.level.rand.nextFloat(),
+                    this.worldPosition.getY() + this.level.random.nextFloat(),
-                    this.worldPosition.getZ() + this.level.rand.nextFloat(),
+                    this.worldPosition.getZ() + this.level.random.nextFloat(),
-                    this.level.rand.nextFloat() * 0.07F + 0.07F,
+                    this.level.random.nextFloat() * 0.07F + 0.07F,
                     IAuraType.forLevel(this.level).getColor(),
-                    this.level.rand.nextFloat() + 0.5F);
+                    this.level.random.nextFloat() + 0.5F);
 
             if (this.entityClient == null) {
                 this.entityClient = this.currentRecipe.makeEntity(this.level, BlockPos.ZERO);
-                this.entityClient.setPosition(this.spawnX, this.worldPosition.getY() + 1, this.spawnZ);
+                this.entityClient.setPos(this.spawnX, this.worldPosition.getY() + 1, this.spawnZ);
             }
-            AxisAlignedBB bounds = this.entityClient.getBoundingBox();
+            AABB bounds = this.entityClient.getBoundingBox();
-            for (int i = this.level.rand.nextInt(5) + 5; i >= 0; i--)
+            for (int i = this.level.random.nextInt(5) + 5; i >= 0; i--)
                 NaturesAuraAPI.instance().spawnMagicParticle(
-                        bounds.minX + this.level.rand.nextFloat() * (bounds.maxX - bounds.minX),
+                        bounds.minX + this.level.random.nextFloat() * (bounds.maxX - bounds.minX),
-                        bounds.minY + this.level.rand.nextFloat() * (bounds.maxY - bounds.minY),
+                        bounds.minY + this.level.random.nextFloat() * (bounds.maxY - bounds.minY),
-                        bounds.minZ + this.level.rand.nextFloat() * (bounds.maxZ - bounds.minZ),
+                        bounds.minZ + this.level.random.nextFloat() * (bounds.maxZ - bounds.minZ),
                         0F, 0F, 0F, 0x2fd8d3, 2F, 60, 0F, false, true);
         }
     }
@@ -154,7 +154,7 @@ public class BlockEntityAnimalSpawner extends BlockEntityImpl implements ITickab
             if (compound.contains("recipe")) {
                 if (this.hasLevel()) {
                     ResourceLocation name = new ResourceLocation(compound.getString("recipe"));
-                    this.currentRecipe = (AnimalSpawnerRecipe) this.level.getRecipeManager().getRecipe(name).orElse(null);
+                    this.currentRecipe = (AnimalSpawnerRecipe) this.level.getRecipeManager().byKey(name).orElse(null);
                 }
                 this.spawnX = compound.getDouble("spawn_x");
                 this.spawnZ = compound.getDouble("spawn_z");

src/main/java/de/ellpeck/naturesaura/blocks/tiles/BlockEntityWoodStand.java

@@ -5,21 +5,20 @@ import de.ellpeck.naturesaura.packet.PacketHandler;
 import de.ellpeck.naturesaura.packet.PacketParticleStream;
 import de.ellpeck.naturesaura.packet.PacketParticles;
 import de.ellpeck.naturesaura.recipes.TreeRitualRecipe;
-import net.minecraft.block.BlockState;
+import net.minecraft.core.BlockPos;
-import net.minecraft.block.Blocks;
-import net.minecraft.block.LeavesBlock;
-import net.minecraft.entity.item.ItemEntity;
-import net.minecraft.item.ItemStack;
-import net.minecraft.item.crafting.Ingredient;
 import net.minecraft.nbt.CompoundTag;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.sounds.SoundEvents;
+import net.minecraft.sounds.SoundSource;
 import net.minecraft.tags.BlockTags;
-import net.minecraft.tileentity.ITickableBlockEntity;
+import net.minecraft.world.entity.item.ItemEntity;
-import net.minecraft.tileentity.BlockEntity;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.util.SoundCategory;
+import net.minecraft.world.level.Level;
-import net.minecraft.util.SoundEvents;
+import net.minecraft.world.level.block.Blocks;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.level.block.LeavesBlock;
-import net.minecraft.level.Level;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
 import net.minecraftforge.items.IItemHandlerModifiable;
 import net.minecraftforge.items.ItemStackHandler;
 
@@ -40,8 +39,8 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
     private BlockPos ritualPos;
     private int timer;
 
-    public BlockEntityWoodStand() {
+    public BlockEntityWoodStand(BlockPos pos, BlockState state) {
-        super(ModTileEntities.WOOD_STAND);
+        super(ModTileEntities.WOOD_STAND, pos, state);
     }
 
     public void setRitual(BlockPos pos, TreeRitualRecipe recipe) {
@@ -64,11 +63,11 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
                                 BlockEntity tile = this.level.getBlockEntity(pos);
                                 if (tile instanceof BlockEntityWoodStand && !((BlockEntityWoodStand) tile).items.getStackInSlot(0).isEmpty()) {
                                     PacketHandler.sendToAllAround(this.level, this.worldPosition, 32, new PacketParticleStream(
-                                            (float) pos.getX() + 0.2F + this.level.rand.nextFloat() * 0.6F,
+                                            (float) pos.getX() + 0.2F + this.level.random.nextFloat() * 0.6F,
                                             (float) pos.getY() + 0.85F,
-                                            (float) pos.getZ() + 0.2F + this.level.rand.nextFloat() * 0.6F,
+                                            (float) pos.getZ() + 0.2F + this.level.random.nextFloat() * 0.6F,
-                                            this.ritualPos.getX() + 0.5F, this.ritualPos.getY() + this.level.rand.nextFloat() * 3F + 2F, this.ritualPos.getZ() + 0.5F,
+                                            this.ritualPos.getX() + 0.5F, this.ritualPos.getY() + this.level.random.nextFloat() * 3F + 2F, this.ritualPos.getZ() + 0.5F,
-                                            this.level.rand.nextFloat() * 0.04F + 0.04F, 0x89cc37, this.level.rand.nextFloat() * 1F + 1F
+                                            this.level.random.nextFloat() * 0.04F + 0.04F, 0x89cc37, this.level.random.nextFloat() + 1F
                                     ));
                                 }
                                 return true;
@@ -79,7 +78,7 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
 
                         if (this.timer >= this.recipe.time) {
                             Multiblocks.TREE_RITUAL.forEach(this.ritualPos, 'G', (pos, matcher) -> {
-                                this.level.setBlockState(pos, Blocks.AIR.getDefaultState());
+                                this.level.setBlockAndUpdate(pos, Blocks.AIR.defaultBlockState());
                                 return true;
                             });
                             recurseTreeDestruction(this.level, this.ritualPos, this.ritualPos, true, false);
@@ -87,12 +86,12 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
                             ItemEntity item = new ItemEntity(this.level,
                                     this.ritualPos.getX() + 0.5, this.ritualPos.getY() + 4.5, this.ritualPos.getZ() + 0.5,
                                     this.recipe.result.copy());
-                            this.level.addEntity(item);
+                            this.level.addFreshEntity(item);
 
                             PacketHandler.sendToAllAround(this.level, this.worldPosition, 32,
-                                    new PacketParticles((float) item.getPosX(), (float) item.getPosY(), (float) item.getPosZ(), PacketParticles.Type.TR_SPAWN_RESULT));
+                                    new PacketParticles((float) item.getX(), (float) item.getY(), (float) item.getZ(), PacketParticles.Type.TR_SPAWN_RESULT));
                             this.level.playSound(null, this.worldPosition.getX() + 0.5, this.worldPosition.getY() + 0.5, this.worldPosition.getZ() + 0.5,
-                                    SoundEvents.ENTITY_ENDERMAN_TELEPORT, SoundCategory.BLOCKS, 0.65F, 1F);
+                                    SoundEvents.ENDERMAN_TELEPORT, SoundSource.BLOCKS, 0.65F, 1F);
 
                             this.ritualPos = null;
                             this.recipe = null;
@@ -100,17 +99,14 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
                         } else if (isOverHalf && !wasOverHalf) {
                             Multiblocks.TREE_RITUAL.forEach(this.ritualPos, 'W', (pos, matcher) -> {
                                 BlockEntity tile = this.level.getBlockEntity(pos);
-                                if (tile instanceof BlockEntityWoodStand) {
+                                if (tile instanceof BlockEntityWoodStand stand && !stand.items.getStackInSlot(0).isEmpty()) {
-                                    BlockEntityWoodStand stand = (BlockEntityWoodStand) tile;
+                                    PacketHandler.sendToAllAround(this.level, this.worldPosition, 32,
-                                    if (!stand.items.getStackInSlot(0).isEmpty()) {
+                                            new PacketParticles(stand.worldPosition.getX(), stand.worldPosition.getY(), stand.worldPosition.getZ(), PacketParticles.Type.TR_CONSUME_ITEM));
-                                        PacketHandler.sendToAllAround(this.level, this.worldPosition, 32,
+                                    this.level.playSound(null, stand.worldPosition.getX() + 0.5, stand.worldPosition.getY() + 0.5, stand.worldPosition.getZ() + 0.5,
-                                                new PacketParticles(stand.pos.getX(), stand.pos.getY(), stand.pos.getZ(), PacketParticles.Type.TR_CONSUME_ITEM));
+                                            SoundEvents.WOOD_STEP, SoundSource.BLOCKS, 0.5F, 1F);
-                                        this.level.playSound(null, stand.pos.getX() + 0.5, stand.pos.getY() + 0.5, stand.pos.getZ() + 0.5,
-                                                SoundEvents.BLOCK_WOOD_STEP, SoundCategory.BLOCKS, 0.5F, 1F);
 
-                                        stand.items.setStackInSlot(0, ItemStack.EMPTY);
+                                    stand.items.setStackInSlot(0, ItemStack.EMPTY);
-                                        stand.sendToClients();
+                                    stand.sendToClients();
-                                    }
                                 }
                                 return true;
                             });
@@ -136,14 +132,14 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
         for (int x = -1; x <= 1; x++) {
             for (int y = -1; y <= 1; y++) {
                 for (int z = -1; z <= 1; z++) {
-                    BlockPos offset = pos.add(x, y, z);
+                    BlockPos offset = pos.offset(x, y, z);
                     BlockState state = level.getBlockState(offset);
                     if (state.getBlock().getTags().contains(BlockTags.LOGS.getName()) || includeLeaves && state.getBlock() instanceof LeavesBlock) {
                         if (drop) {
                             level.destroyBlock(offset, true);
                         } else {
                             // in this case we don't want the particles, so we can't use destroyBlock
-                            level.setBlockState(offset, Blocks.AIR.getDefaultState());
+                            level.setBlockAndUpdate(offset, Blocks.AIR.defaultBlockState());
                             PacketHandler.sendToAllAround(level, pos, 32, new PacketParticles(offset.getX(), offset.getY(), offset.getZ(), PacketParticles.Type.TR_DISAPPEAR));
                         }
                         recurseTreeDestruction(level, offset, start, includeLeaves, drop);
@@ -158,7 +154,7 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
             return false;
         }
         for (int i = 0; i < 2; i++) {
-            BlockState state = this.level.getBlockState(this.ritualPos.up(i));
+            BlockState state = this.level.getBlockState(this.ritualPos.above(i));
             if (!(state.getBlock().getTags().contains(BlockTags.LOGS.getName())))
                 return false;
         }
@@ -194,7 +190,7 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
 
         if (type == SaveType.TILE) {
             if (this.ritualPos != null && this.recipe != null) {
-                compound.putLong("ritual_pos", this.ritualPos.toLong());
+                compound.putLong("ritual_pos", this.ritualPos.asLong());
                 compound.putInt("timer", this.timer);
                 compound.putString("recipe", this.recipe.name.toString());
             }
@@ -209,10 +205,10 @@ public class BlockEntityWoodStand extends BlockEntityImpl implements ITickableBl
 
         if (type == SaveType.TILE) {
             if (compound.contains("recipe")) {
-                this.ritualPos = BlockPos.fromLong(compound.getLong("ritual_pos"));
+                this.ritualPos = BlockPos.of(compound.getLong("ritual_pos"));
                 this.timer = compound.getInt("timer");
                 if (this.hasLevel())
-                    this.recipe = (TreeRitualRecipe) this.level.getRecipeManager().getRecipe(new ResourceLocation(compound.getString("recipe"))).orElse(null);
+                    this.recipe = (TreeRitualRecipe) this.level.getRecipeManager().byKey(new ResourceLocation(compound.getString("recipe"))).orElse(null);
             }
         }
     }

src/main/java/de/ellpeck/naturesaura/blocks/tiles/ITickableBlockEntity.java

@@ -0,0 +1,7 @@
+package de.ellpeck.naturesaura.blocks.tiles;
+
+public interface ITickableBlockEntity {
+
+    void tick();
+
+}

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityAuraDetector.java

@@ -2,7 +2,7 @@ package de.ellpeck.naturesaura.blocks.tiles;
 
 import de.ellpeck.naturesaura.api.aura.chunk.IAuraChunk;
 import net.minecraft.tileentity.ITickableBlockEntity;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 
 public class BlockEntityAuraDetector extends BlockEntityImpl implements ITickableBlockEntity {
 
@@ -16,7 +16,7 @@ public class BlockEntityAuraDetector extends BlockEntityImpl implements ITickabl
     public void tick() {
         if (!this.level.isClientSide && this.level.getGameTime() % 20 == 0) {
             int totalAmount = IAuraChunk.triangulateAuraInArea(this.level, this.worldPosition, 25);
-            int power = MathHelper.clamp(MathHelper.ceil(totalAmount / (IAuraChunk.DEFAULT_AURA * 2F) * 15F), 0, 15);
+            int power = Mth.clamp(Mth.ceil(totalAmount / (IAuraChunk.DEFAULT_AURA * 2F) * 15F), 0, 15);
             if (this.redstonePower != power) {
                 this.redstonePower = power;
                 this.level.updateComparatorOutputLevel(this.worldPosition, this.getBlockState().getBlock());

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityChunkLoader.java

@@ -6,7 +6,7 @@ import net.minecraft.nbt.CompoundTag;
 import net.minecraft.tileentity.ITickableBlockEntity;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.ChunkPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.server.ServerLevel;
 
 import java.util.ArrayList;
@@ -88,7 +88,7 @@ public class BlockEntityChunkLoader extends BlockEntityImpl implements ITickable
 
             if (this.level.getGameTime() % 20 != 0)
                 return;
-            int toUse = MathHelper.ceil(this.range() / 2F);
+            int toUse = Mth.ceil(this.range() / 2F);
             if (toUse > 0) {
                 BlockPos spot = IAuraChunk.getHighestSpot(this.level, this.worldPosition, 35, this.worldPosition);
                 IAuraChunk.getAuraChunk(this.level, spot).drainAura(spot, toUse);

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityFieldCreator.java

@@ -17,7 +17,7 @@ import net.minecraft.nbt.CompoundTag;
 import net.minecraft.tileentity.ITickableBlockEntity;
 import net.minecraft.tileentity.BlockEntity;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.level.server.ServerLevel;
 import net.minecraftforge.common.MinecraftForge;
@@ -102,12 +102,12 @@ public class BlockEntityFieldCreator extends BlockEntityImpl implements ITickabl
             );
             double length = dist.length();
             Vector3d normal = new Vector3d(dist.x / length, dist.y / length, dist.z / length);
-            for (float i = MathHelper.floor(length); i > 0; i -= 0.5F) {
+            for (float i = Mth.floor(length); i > 0; i -= 0.5F) {
                 Vector3d scaled = normal.scale(i);
                 BlockPos pos = connectedPos.add(
-                        MathHelper.floor(scaled.x + 0.5F),
+                        Mth.floor(scaled.x + 0.5F),
-                        MathHelper.floor(scaled.y + 0.5F),
+                        Mth.floor(scaled.y + 0.5F),
-                        MathHelper.floor(scaled.z + 0.5F));
+                        Mth.floor(scaled.z + 0.5F));
 
                 if (pos.equals(this.worldPosition) || pos.equals(connectedPos))
                     continue;

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityFireworkGenerator.java

@@ -15,7 +15,7 @@ import net.minecraft.tileentity.ITickableBlockEntity;
 import net.minecraft.util.EntityPredicates;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 
 import java.util.ArrayList;
 import java.util.HashSet;
@@ -97,7 +97,7 @@ public class BlockEntityFireworkGenerator extends BlockEntityImpl implements ITi
                     }
 
                     if (generateFactor > 0) {
-                        int toAdd = MathHelper.ceil(generateFactor * 10000F);
+                        int toAdd = Mth.ceil(generateFactor * 10000F);
                         if (this.canGenerateRightNow(toAdd)) {
                             this.toRelease = toAdd;
                             this.releaseTimer = 15 * flightTime + 40;

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityFurnaceHeater.java

@@ -16,7 +16,7 @@ import net.minecraft.tileentity.*;
 import net.minecraft.util.Direction;
 import net.minecraft.util.IIntArray;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraftforge.fml.common.ObfuscationReflectionHelper;
 
 import java.lang.reflect.Field;
@@ -71,7 +71,7 @@ public class BlockEntityFurnaceHeater extends BlockEntityImpl implements ITickab
 
                     BlockPos spot = IAuraChunk.getHighestSpot(this.level, this.worldPosition, 20, this.worldPosition);
                     IAuraChunk chunk = IAuraChunk.getAuraChunk(this.level, spot);
-                    chunk.drainAura(spot, MathHelper.ceil((200 - burnTime) * 16.6F));
+                    chunk.drainAura(spot, Mth.ceil((200 - burnTime) * 16.6F));
                     did = true;
 
                     if (this.level.getGameTime() % 15 == 0) {

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityNatureAltar.java

@@ -20,7 +20,7 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.SoundCategory;
 import net.minecraft.util.SoundEvents;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.items.IItemHandlerModifiable;
@@ -143,7 +143,7 @@ public class BlockEntityNatureAltar extends BlockEntityImpl implements ITickable
                             this.currentRecipe = null;
                             this.timer = 0;
                         } else {
-                            int req = MathHelper.ceil(this.currentRecipe.aura / (double) this.currentRecipe.time);
+                            int req = Mth.ceil(this.currentRecipe.aura / (double) this.currentRecipe.time);
                             if (this.container.getStoredAura() >= req) {
                                 this.container.drainAura(req, false);
 

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityRFConverter.java

@@ -10,7 +10,7 @@ import net.minecraft.tileentity.ITickableBlockEntity;
 import net.minecraft.tileentity.BlockEntity;
 import net.minecraft.util.Direction;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.util.LazyOptional;
 import net.minecraftforge.energy.CapabilityEnergy;
@@ -78,7 +78,7 @@ public class BlockEntityRFConverter extends BlockEntityImpl implements ITickable
             if (aura <= IAuraChunk.DEFAULT_AURA)
                 return;
             int amountToGen = Math.min(Math.min(10000, aura / 1000), emptyPart);
-            int amountToUse = MathHelper.ceil(amountToGen / ModConfig.instance.auraToRFRatio.get());
+            int amountToUse = Mth.ceil(amountToGen / ModConfig.instance.auraToRFRatio.get());
 
             this.storage.setEnergy(this.storage.getEnergyStored() + amountToGen);
             BlockPos pos = IAuraChunk.getHighestSpot(this.level, this.worldPosition, 45, this.worldPosition);

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntitySnowCreator.java

@@ -13,7 +13,7 @@ import net.minecraft.fluid.Fluids;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.tileentity.ITickableBlockEntity;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.gen.Heightmap;
 
 public class BlockEntitySnowCreator extends BlockEntityImpl implements ITickableBlockEntity {
@@ -81,7 +81,7 @@ public class BlockEntitySnowCreator extends BlockEntityImpl implements ITickable
                 double angle = this.level.rand.nextFloat() * Math.PI * 2;
                 BlockPos pos = this.worldPosition.add(
                         Math.cos(angle) * range * this.level.rand.nextFloat(),
-                        MathHelper.nextInt(this.level.rand, range / 2, range),
+                        Mth.nextInt(this.level.rand, range / 2, range),
                         Math.sin(angle) * range * this.level.rand.nextFloat());
                 NaturesAuraAPI.instance().spawnMagicParticle(
                         pos.getX() + this.level.rand.nextFloat(), pos.getY() + 1, pos.getZ() + this.level.rand.nextFloat(),

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntitySpring.java

@@ -14,7 +14,7 @@ import net.minecraft.util.SoundCategory;
 import net.minecraft.util.SoundEvents;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraftforge.common.FarmlandWaterManager;
 import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.ticket.AABBTicket;
@@ -171,7 +171,7 @@ public class BlockEntitySpring extends BlockEntityImpl implements ITickableBlock
         public FluidStack drain(int maxDrain, IFluidHandler.FluidAction action) {
             int drain = Math.min(maxDrain, 1000);
             if (action.execute())
-                BlockEntitySpring.this.consumeAura(MathHelper.ceil(drain / 2F));
+                BlockEntitySpring.this.consumeAura(Mth.ceil(drain / 2F));
             return new FluidStack(Fluids.WATER, drain);
         }
 

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityTimeChanger.java

@@ -16,7 +16,7 @@ import net.minecraft.tileentity.ITickableBlockEntity;
 import net.minecraft.util.EntityPredicates;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.GameRules;
 import net.minecraft.level.server.ServerLevel;
 import net.minecraft.level.storage.IServerLevelInfo;
@@ -74,7 +74,7 @@ public class BlockEntityTimeChanger extends BlockEntityImpl implements ITickable
                     if (stack.isEmpty() || stack.getItem() != Items.CLOCK)
                         continue;
 
-                    int dayGoal = MathHelper.floor((frame.getRotation() / 8F) * 24000F) + 18000;
+                    int dayGoal = Mth.floor((frame.getRotation() / 8F) * 24000F) + 18000;
                     long current = this.level.getDayTime();
                     long toMove = (24000 - current % 24000 + dayGoal) % 24000;
                     this.goalTime = current + toMove;

src/main/java/de/ellpeck/naturesaura/blocks/tiles/render/RenderOfferingTable.java

@@ -10,7 +10,7 @@ import net.minecraft.client.renderer.tileentity.BlockEntityRendererDispatcher;
 import net.minecraft.item.BlockItem;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.vector.Vector3f;
 
 import java.util.Random;
@@ -29,7 +29,7 @@ public class RenderOfferingTable extends BlockEntityRenderer<BlockEntityOffering
         if (!stack.isEmpty()) {
             this.rand.setSeed(Item.getIdFromItem(stack.getItem()) + stack.getDamage());
 
-            int amount = MathHelper.ceil(stack.getCount() / 2F);
+            int amount = Mth.ceil(stack.getCount() / 2F);
             for (int i = 0; i < amount; i++) {
                 matrixStack.push();
                 Item item = stack.getItem();

src/main/java/de/ellpeck/naturesaura/chunk/AuraChunk.java

@@ -12,13 +12,10 @@ import de.ellpeck.naturesaura.packet.PacketHandler;
 import net.minecraft.core.BlockPos;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.ListTag;
-import net.minecraft.nbt.Tag;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Tuple;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.level.ChunkPos;
-import net.minecraft.world.level.Level;
 import net.minecraft.world.level.chunk.LevelChunk;
 import org.apache.commons.lang3.mutable.MutableInt;
 
@@ -27,7 +24,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.BiConsumer;
-import java.util.function.Supplier;
 
 public class AuraChunk implements IAuraChunk {
 
@@ -41,8 +37,8 @@ public class AuraChunk implements IAuraChunk {
         this.chunk = chunk;
         this.type = type;
 
-        for (Supplier<IDrainSpotEffect> supplier : NaturesAuraAPI.DRAIN_SPOT_EFFECTS.values()) {
+        for (var supplier : NaturesAuraAPI.DRAIN_SPOT_EFFECTS.values()) {
-            IDrainSpotEffect effect = supplier.get();
+            var effect = supplier.get();
             if (effect.appliesHere(this.chunk, this, this.type))
                 this.effects.add(effect);
         }
@@ -52,8 +48,8 @@ public class AuraChunk implements IAuraChunk {
     public int drainAura(BlockPos pos, int amount, boolean aimForZero, boolean simulate) {
         if (amount <= 0)
             return 0;
-        MutableInt spot = this.getActualDrainSpot(pos, !simulate);
+        var spot = this.getActualDrainSpot(pos, !simulate);
-        int curr = spot != null ? spot.intValue() : 0;
+        var curr = spot != null ? spot.intValue() : 0;
         if (curr < 0 && curr - amount > 0) // Underflow protection
             return this.drainAura(pos.above(), amount, aimForZero, simulate);
         if (aimForZero) {
@@ -78,8 +74,8 @@ public class AuraChunk implements IAuraChunk {
     public int storeAura(BlockPos pos, int amount, boolean aimForZero, boolean simulate) {
         if (amount <= 0)
             return 0;
-        MutableInt spot = this.getActualDrainSpot(pos, !simulate);
+        var spot = this.getActualDrainSpot(pos, !simulate);
-        int curr = spot != null ? spot.intValue() : 0;
+        var curr = spot != null ? spot.intValue() : 0;
         if (curr > 0 && curr + amount < 0) // Overflow protection
             return this.storeAura(pos.above(), amount, aimForZero, simulate);
         if (aimForZero) {
@@ -102,7 +98,7 @@ public class AuraChunk implements IAuraChunk {
     }
 
     private MutableInt getActualDrainSpot(BlockPos pos, boolean make) {
-        MutableInt spot = this.drainSpots.get(pos);
+        var spot = this.drainSpots.get(pos);
         if (spot == null && make) {
             spot = new MutableInt();
             this.addDrainSpot(pos, spot);
@@ -112,14 +108,14 @@ public class AuraChunk implements IAuraChunk {
 
     @Override
     public int getDrainSpot(BlockPos pos) {
-        MutableInt spot = this.getActualDrainSpot(pos, false);
+        var spot = this.getActualDrainSpot(pos, false);
         return spot == null ? 0 : spot.intValue();
     }
 
     private void addDrainSpot(BlockPos pos, MutableInt spot) {
-        int expX = pos.getX() >> 4;
+        var expX = pos.getX() >> 4;
-        int expZ = pos.getZ() >> 4;
+        var expZ = pos.getZ() >> 4;
-        ChunkPos myPos = this.chunk.getPos();
+        var myPos = this.chunk.getPos();
         if (expX != myPos.x || expZ != myPos.z)
             throw new IllegalArgumentException("Tried to add drain spot " + pos + " to chunk at " + myPos.x + ", " + myPos.z + " when it should've been added to chunk at " + expX + ", " + expZ);
 
@@ -128,7 +124,7 @@ public class AuraChunk implements IAuraChunk {
 
     public void setSpots(Map<BlockPos, MutableInt> spots) {
         this.drainSpots.clear();
-        for (Map.Entry<BlockPos, MutableInt> entry : spots.entrySet())
+        for (var entry : spots.entrySet())
             this.addDrainSpot(entry.getKey(), entry.getValue());
         this.addOrRemoveAsActive();
     }
@@ -140,23 +136,23 @@ public class AuraChunk implements IAuraChunk {
 
     @Override
     public void markDirty() {
-        this.chunk.markDirty();
+        this.chunk.setUnsaved(true);
         this.needsSync = true;
         this.addOrRemoveAsActive();
     }
 
     public void update() {
-        Level level = this.chunk.getLevel();
+        var level = this.chunk.getLevel();
 
-        for (Map.Entry<BlockPos, MutableInt> entry : this.drainSpots.entrySet()) {
+        for (var entry : this.drainSpots.entrySet()) {
-            BlockPos pos = entry.getKey();
+            var pos = entry.getKey();
-            MutableInt amount = entry.getValue();
+            var amount = entry.getValue();
-            for (IDrainSpotEffect effect : this.effects)
+            for (var effect : this.effects)
                 effect.update(level, this.chunk, this, pos, amount.intValue());
         }
 
         if (this.needsSync) {
-            ChunkPos pos = this.chunk.getPos();
+            var pos = this.chunk.getPos();
             PacketHandler.sendToAllLoaded(level,
                     new BlockPos(pos.x * 16, 0, pos.z * 16),
                     this.makePacket());
@@ -165,13 +161,13 @@ public class AuraChunk implements IAuraChunk {
     }
 
     public PacketAuraChunk makePacket() {
-        ChunkPos pos = this.chunk.getPos();
+        var pos = this.chunk.getPos();
         return new PacketAuraChunk(pos.x, pos.z, this.drainSpots);
     }
 
     public void getSpotsInArea(BlockPos pos, int radius, BiConsumer<BlockPos, Integer> consumer) {
-        for (Map.Entry<BlockPos, MutableInt> entry : this.drainSpots.entrySet()) {
+        for (var entry : this.drainSpots.entrySet()) {
-            BlockPos drainPos = entry.getKey();
+            var drainPos = entry.getKey();
             if (drainPos.distSqr(pos) <= radius * radius) {
                 consumer.accept(drainPos, entry.getValue().intValue());
             }
@@ -179,17 +175,17 @@ public class AuraChunk implements IAuraChunk {
     }
 
     public void getActiveEffectIcons(Player player, Map<ResourceLocation, Tuple<ItemStack, Boolean>> icons) {
-        for (IDrainSpotEffect effect : this.effects) {
+        for (var effect : this.effects) {
-            Tuple<ItemStack, Boolean> alreadyThere = icons.get(effect.getName());
+            var alreadyThere = icons.get(effect.getName());
             if (alreadyThere != null && alreadyThere.getB())
                 continue;
-            for (Map.Entry<BlockPos, MutableInt> entry : this.drainSpots.entrySet()) {
+            for (var entry : this.drainSpots.entrySet()) {
-                BlockPos pos = entry.getKey();
+                var pos = entry.getKey();
-                MutableInt amount = entry.getValue();
+                var amount = entry.getValue();
-                ActiveType state = effect.isActiveHere(player, this.chunk, this, pos, amount.intValue());
+                var state = effect.isActiveHere(player, this.chunk, this, pos, amount.intValue());
                 if (state == ActiveType.INACTIVE)
                     continue;
-                ItemStack stack = effect.getDisplayIcon();
+                var stack = effect.getDisplayIcon();
                 if (stack.isEmpty())
                     continue;
                 icons.put(effect.getName(), new Tuple<>(stack, state == ActiveType.INHIBITED));
@@ -199,15 +195,15 @@ public class AuraChunk implements IAuraChunk {
 
     @Override
     public CompoundTag serializeNBT() {
-        ListTag list = new ListTag();
+        var list = new ListTag();
-        for (Map.Entry<BlockPos, MutableInt> entry : this.drainSpots.entrySet()) {
+        for (var entry : this.drainSpots.entrySet()) {
-            CompoundTag tag = new CompoundTag();
+            var tag = new CompoundTag();
             tag.putLong("pos", entry.getKey().asLong());
             tag.putInt("amount", entry.getValue().intValue());
             list.add(tag);
         }
 
-        CompoundTag compound = new CompoundTag();
+        var compound = new CompoundTag();
         compound.put("drain_spots", list);
         return compound;
     }
@@ -215,9 +211,9 @@ public class AuraChunk implements IAuraChunk {
     @Override
     public void deserializeNBT(CompoundTag compound) {
         this.drainSpots.clear();
-        ListTag list = compound.getList("drain_spots", 10);
+        var list = compound.getList("drain_spots", 10);
-        for (Tag base : list) {
+        for (var base : list) {
-            CompoundTag tag = (CompoundTag) base;
+            var tag = (CompoundTag) base;
             this.addDrainSpot(
                     BlockPos.of(tag.getLong("pos")),
                     new MutableInt(tag.getInt("amount")));
@@ -226,8 +222,8 @@ public class AuraChunk implements IAuraChunk {
     }
 
     private void addOrRemoveAsActive() {
-        long chunkPos = this.chunk.getPos().asLong();
+        var chunkPos = this.chunk.getPos().toLong();
-        LevelData data = (LevelData) ILevelData.getLevelData(this.chunk.getLevel());
+        var data = (LevelData) ILevelData.getLevelData(this.chunk.getLevel());
         if (this.drainSpots.size() > 0) {
             data.auraChunksWithSpots.put(chunkPos, this);
         } else {

src/main/java/de/ellpeck/naturesaura/chunk/effect/AnimalEffect.java

@@ -18,7 +18,7 @@ import net.minecraft.particles.ParticleTypes;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
 import net.minecraftforge.fml.common.ObfuscationReflectionHelper;
@@ -42,10 +42,10 @@ public class AnimalEffect implements IDrainSpotEffect {
         int aura = auraAndSpots.getLeft();
         if (aura < 1500000)
             return false;
-        this.chance = Math.min(50, MathHelper.ceil(Math.abs(aura) / 500000F / auraAndSpots.getRight()));
+        this.chance = Math.min(50, Mth.ceil(Math.abs(aura) / 500000F / auraAndSpots.getRight()));
         if (this.chance <= 0)
             return false;
-        int dist = MathHelper.clamp(Math.abs(aura) / 150000, 5, 35);
+        int dist = Mth.clamp(Math.abs(aura) / 150000, 5, 35);
         this.bb = new AxisAlignedBB(pos).grow(dist);
         return true;
     }

src/main/java/de/ellpeck/naturesaura/chunk/effect/BreathlessEffect.java

@@ -14,7 +14,7 @@ import net.minecraft.potion.EffectInstance;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
 
@@ -36,7 +36,7 @@ public class BreathlessEffect implements IDrainSpotEffect {
         int dist = Math.min(Math.abs(aura) / 50000, 75);
         if (dist < 10)
             return false;
-        this.amp = Math.min(MathHelper.floor(Math.abs(aura) / 2500000F), 3);
+        this.amp = Math.min(Mth.floor(Math.abs(aura) / 2500000F), 3);
         this.bb = new AxisAlignedBB(pos).grow(dist);
         return true;
     }

src/main/java/de/ellpeck/naturesaura/chunk/effect/CacheRechargeEffect.java

@@ -12,7 +12,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
 import org.apache.commons.lang3.tuple.Pair;
@@ -33,9 +33,9 @@ public class CacheRechargeEffect implements IDrainSpotEffect {
         int aura = auraAndSpots.getLeft();
         if (aura < 1500000)
             return false;
-        int dist = MathHelper.clamp(aura / 3500, 3, 15);
+        int dist = Mth.clamp(aura / 3500, 3, 15);
         this.bb = new AxisAlignedBB(pos).grow(dist);
-        this.amount = MathHelper.ceil(aura / 250F / auraAndSpots.getRight());
+        this.amount = Mth.ceil(aura / 250F / auraAndSpots.getRight());
         return true;
     }
 

src/main/java/de/ellpeck/naturesaura/chunk/effect/ExplosionEffect.java

@@ -10,7 +10,7 @@ import net.minecraft.entity.player.Player;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Explosion;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
@@ -35,7 +35,7 @@ public class ExplosionEffect implements IDrainSpotEffect {
         this.strength = Math.min(Math.abs(aura) / 5000000F, 5F);
         if (this.strength <= 0)
             return false;
-        this.dist = MathHelper.clamp(Math.abs(aura) / 200000, 25, 100);
+        this.dist = Mth.clamp(Math.abs(aura) / 200000, 25, 100);
         return true;
     }
 
@@ -60,8 +60,8 @@ public class ExplosionEffect implements IDrainSpotEffect {
         if (!this.calcValues(level, pos, spot))
             return;
 
-        int x = MathHelper.floor(pos.getX() + level.rand.nextGaussian() * this.dist);
+        int x = Mth.floor(pos.getX() + level.rand.nextGaussian() * this.dist);
-        int z = MathHelper.floor(pos.getZ() + level.rand.nextGaussian() * this.dist);
+        int z = Mth.floor(pos.getZ() + level.rand.nextGaussian() * this.dist);
         BlockPos chosenPos = new BlockPos(x, level.getHeight(Heightmap.Type.WORLD_SURFACE, x, z), z);
         if (chosenPos.distanceSq(pos) <= this.dist * this.dist && level.isBlockLoaded(chosenPos)) {
             level.createExplosion(null,

src/main/java/de/ellpeck/naturesaura/chunk/effect/GrassDieEffect.java

@@ -12,7 +12,7 @@ import net.minecraft.entity.player.Player;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
 import org.apache.commons.lang3.tuple.Pair;
@@ -29,9 +29,9 @@ public class GrassDieEffect implements IDrainSpotEffect {
             Pair<Integer, Integer> auraAndSpots = IAuraChunk.getAuraAndSpotAmountInArea(level, pos, 50);
             int aura = auraAndSpots.getLeft();
             if (aura < 0) {
-                this.amount = Math.min(300, MathHelper.ceil(Math.abs(aura) / 100000F / auraAndSpots.getRight()));
+                this.amount = Math.min(300, Mth.ceil(Math.abs(aura) / 100000F / auraAndSpots.getRight()));
                 if (this.amount > 1) {
-                    this.dist = MathHelper.clamp(Math.abs(aura) / 75000, 5, 75);
+                    this.dist = Mth.clamp(Math.abs(aura) / 75000, 5, 75);
                     return true;
                 }
             }

src/main/java/de/ellpeck/naturesaura/chunk/effect/NetherDecayEffect.java

@@ -17,7 +17,7 @@ import net.minecraft.tags.BlockTags;
 import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
 import org.apache.commons.lang3.tuple.Pair;
@@ -36,10 +36,10 @@ public class NetherDecayEffect implements IDrainSpotEffect {
         int aura = auraAndSpots.getLeft();
         if (aura >= 0)
             return false;
-        this.amount = Math.min(300, MathHelper.ceil(Math.abs(aura) / 50000F / auraAndSpots.getRight()));
+        this.amount = Math.min(300, Mth.ceil(Math.abs(aura) / 50000F / auraAndSpots.getRight()));
         if (this.amount <= 1)
             return false;
-        this.dist = MathHelper.clamp(Math.abs(aura) / 50000, 5, 75);
+        this.dist = Mth.clamp(Math.abs(aura) / 50000, 5, 75);
         return true;
     }
 

src/main/java/de/ellpeck/naturesaura/chunk/effect/NetherGrassEffect.java

@@ -16,7 +16,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
 import net.minecraftforge.common.Tags;
@@ -36,10 +36,10 @@ public class NetherGrassEffect implements IDrainSpotEffect {
         int aura = auraAndSpots.getLeft();
         if (aura < 1500000)
             return false;
-        this.amount = Math.min(20, MathHelper.ceil(Math.abs(aura) / 100000F / auraAndSpots.getRight()));
+        this.amount = Math.min(20, Mth.ceil(Math.abs(aura) / 100000F / auraAndSpots.getRight()));
         if (this.amount <= 1)
             return false;
-        this.dist = MathHelper.clamp(Math.abs(aura) / 100000, 5, 35);
+        this.dist = Mth.clamp(Math.abs(aura) / 100000, 5, 35);
         return true;
     }
 
@@ -66,9 +66,9 @@ public class NetherGrassEffect implements IDrainSpotEffect {
         if (!this.calcValues(level, pos, spot))
             return;
         for (int i = this.amount / 2 + level.rand.nextInt(this.amount / 2); i >= 0; i--) {
-            int x = MathHelper.floor(pos.getX() + level.rand.nextGaussian() * this.dist);
+            int x = Mth.floor(pos.getX() + level.rand.nextGaussian() * this.dist);
-            int y = MathHelper.floor(pos.getY() + level.rand.nextGaussian() * this.dist);
+            int y = Mth.floor(pos.getY() + level.rand.nextGaussian() * this.dist);
-            int z = MathHelper.floor(pos.getZ() + level.rand.nextGaussian() * this.dist);
+            int z = Mth.floor(pos.getZ() + level.rand.nextGaussian() * this.dist);
 
             for (int yOff = -5; yOff <= 5; yOff++) {
                 BlockPos goalPos = new BlockPos(x, y + yOff, z);

src/main/java/de/ellpeck/naturesaura/chunk/effect/OreSpawnEffect.java

@@ -19,7 +19,7 @@ import net.minecraft.util.*;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.BlockRayTraceResult;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
@@ -47,10 +47,10 @@ public class OreSpawnEffect implements IDrainSpotEffect {
         int aura = auraAndSpots.getLeft();
         if (aura <= 2000000)
             return false;
-        this.amount = Math.min(20, MathHelper.ceil(Math.abs(aura) / 300000F / auraAndSpots.getRight()));
+        this.amount = Math.min(20, Mth.ceil(Math.abs(aura) / 300000F / auraAndSpots.getRight()));
         if (this.amount <= 0)
             return false;
-        this.dist = MathHelper.clamp(Math.abs(aura) / 150000, 5, 20);
+        this.dist = Mth.clamp(Math.abs(aura) / 150000, 5, 20);
         return true;
     }
 
@@ -96,9 +96,9 @@ public class OreSpawnEffect implements IDrainSpotEffect {
             Tuple<Vector3d, Integer> powder = powders.get(i % powders.size());
             Vector3d powderPos = powder.getA();
             int range = powder.getB();
-            int x = MathHelper.floor(powderPos.x + level.rand.nextGaussian() * range);
+            int x = Mth.floor(powderPos.x + level.rand.nextGaussian() * range);
-            int y = MathHelper.floor(powderPos.y + level.rand.nextGaussian() * range);
+            int y = Mth.floor(powderPos.y + level.rand.nextGaussian() * range);
-            int z = MathHelper.floor(powderPos.z + level.rand.nextGaussian() * range);
+            int z = Mth.floor(powderPos.z + level.rand.nextGaussian() * range);
             BlockPos orePos = new BlockPos(x, y, z);
             if (orePos.distanceSq(powderPos.x, powderPos.y, powderPos.z, true) <= range * range
                     && orePos.distanceSq(pos) <= this.dist * this.dist && level.isBlockLoaded(orePos)) {

src/main/java/de/ellpeck/naturesaura/chunk/effect/PlantBoostEffect.java

@@ -14,7 +14,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.item.Items;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
 import net.minecraft.level.gen.Heightmap;
@@ -35,10 +35,10 @@ public class PlantBoostEffect implements IDrainSpotEffect {
         int aura = auraAndSpots.getLeft();
         if (aura < 1500000)
             return false;
-        this.amount = Math.min(45, MathHelper.ceil(Math.abs(aura) / 100000F / auraAndSpots.getRight()));
+        this.amount = Math.min(45, Mth.ceil(Math.abs(aura) / 100000F / auraAndSpots.getRight()));
         if (this.amount <= 1)
             return false;
-        this.dist = MathHelper.clamp(Math.abs(aura) / 150000, 5, 35);
+        this.dist = Mth.clamp(Math.abs(aura) / 150000, 5, 35);
         return true;
     }
 
@@ -63,8 +63,8 @@ public class PlantBoostEffect implements IDrainSpotEffect {
         if (!this.calcValues(level, pos, spot))
             return;
         for (int i = this.amount / 2 + level.rand.nextInt(this.amount / 2); i >= 0; i--) {
-            int x = MathHelper.floor(pos.getX() + (2 * level.rand.nextFloat() - 1) * this.dist);
+            int x = Mth.floor(pos.getX() + (2 * level.rand.nextFloat() - 1) * this.dist);
-            int z = MathHelper.floor(pos.getZ() + (2 * level.rand.nextFloat() - 1) * this.dist);
+            int z = Mth.floor(pos.getZ() + (2 * level.rand.nextFloat() - 1) * this.dist);
             BlockPos plantPos = new BlockPos(x, level.getHeight(Heightmap.Type.WORLD_SURFACE, x, z), z).down();
             if (plantPos.distanceSq(pos) <= this.dist * this.dist && level.isBlockLoaded(plantPos)) {
                 if (NaturesAuraAPI.instance().isEffectPowderActive(level, plantPos, NAME))

src/main/java/de/ellpeck/naturesaura/chunk/effect/ReplenishingEffect.java

@@ -24,7 +24,7 @@ public class ReplenishingEffect implements IDrainSpotEffect {
     public void update(Level level, Chunk chunk, IAuraChunk auraChunk, BlockPos pos, Integer spot) {
         if (spot < 0) {
             List<ISpotDrainable> tiles = new ArrayList<>();
-            Helper.getTileEntitiesInArea(level, pos, 25, tile -> {
+            Helper.getBlockEntitiesInArea(level, pos, 25, tile -> {
                 IAuraContainer container = tile.getCapability(NaturesAuraAPI.capAuraContainer, null).orElse(null);
                 if (container instanceof ISpotDrainable)
                     tiles.add((ISpotDrainable) container);

src/main/java/de/ellpeck/naturesaura/chunk/effect/SpreadEffect.java

@@ -7,7 +7,7 @@ import de.ellpeck.naturesaura.api.aura.type.IAuraType;
 import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.chunk.Chunk;
 
@@ -20,7 +20,7 @@ public class SpreadEffect implements IDrainSpotEffect {
         if (Math.abs(spot) < 500000 || Math.abs(IAuraChunk.getAuraInArea(level, pos, 25)) < 2000000)
             return;
         boolean drain = spot > 0;
-        int toMove = MathHelper.ceil(Math.abs(spot) * 0.72F);
+        int toMove = Mth.ceil(Math.abs(spot) * 0.72F);
         int perSide = toMove / 6;
         while (toMove > 0) {
             BlockPos bestOffset = null;

src/main/java/de/ellpeck/naturesaura/enchant/AuraMendingEnchantment.java

@@ -1,26 +1,26 @@
 package de.ellpeck.naturesaura.enchant;
 
 import de.ellpeck.naturesaura.api.NaturesAuraAPI;
-import net.minecraft.enchantment.Enchantment;
+import net.minecraft.world.entity.EquipmentSlot;
-import net.minecraft.enchantment.EnchantmentType;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.enchantment.Enchantments;
+import net.minecraft.world.item.enchantment.Enchantment;
-import net.minecraft.inventory.EquipmentSlotType;
+import net.minecraft.world.item.enchantment.EnchantmentCategory;
-import net.minecraft.item.ItemStack;
+import net.minecraft.world.item.enchantment.Enchantments;
 
 public class AuraMendingEnchantment extends ModEnchantment {
 
     public AuraMendingEnchantment() {
-        super("aura_mending", Rarity.RARE, EnchantmentType.BREAKABLE, EquipmentSlotType.values());
+        super("aura_mending", Rarity.RARE, EnchantmentCategory.BREAKABLE, EquipmentSlot.values());
     }
 
     @Override
-    protected boolean canApplyTogether(Enchantment ench) {
+    protected boolean checkCompatibility(Enchantment ench) {
-        return super.canApplyTogether(ench) && ench != Enchantments.MENDING;
+        return super.checkCompatibility(ench) && ench != Enchantments.MENDING;
     }
 
     @Override
-    public boolean canApply(ItemStack stack) {
+    public boolean canEnchant(ItemStack stack) {
-        return super.canApply(stack) && !stack.getCapability(NaturesAuraAPI.capAuraRecharge).isPresent();
+        return super.canEnchant(stack) && !stack.getCapability(NaturesAuraAPI.capAuraRecharge).isPresent();
     }
 
     @Override

src/main/java/de/ellpeck/naturesaura/enchant/ModEnchantment.java

@@ -2,15 +2,15 @@ package de.ellpeck.naturesaura.enchant;
 
 import de.ellpeck.naturesaura.reg.IModItem;
 import de.ellpeck.naturesaura.reg.ModRegistry;
-import net.minecraft.enchantment.Enchantment;
+import net.minecraft.world.entity.EquipmentSlot;
-import net.minecraft.enchantment.EnchantmentType;
+import net.minecraft.world.item.enchantment.Enchantment;
-import net.minecraft.inventory.EquipmentSlotType;
+import net.minecraft.world.item.enchantment.EnchantmentCategory;
 
 public class ModEnchantment extends Enchantment implements IModItem {
 
     private final String name;
 
-    protected ModEnchantment(String name, Rarity rarityIn, EnchantmentType typeIn, EquipmentSlotType[] slots) {
+    protected ModEnchantment(String name, Rarity rarityIn, EnchantmentCategory typeIn, EquipmentSlot[] slots) {
         super(rarityIn, typeIn, slots);
         this.name = name;
         ModRegistry.add(this);

src/main/java/de/ellpeck/naturesaura/entities/EntityLightProjectile.java

@@ -27,9 +27,9 @@ public class EntityLightProjectile extends ThrowableEntity {
         if (this.level.isClientSide && this.ticksExisted > 1) {
             for (float i = 0; i <= 1; i += 0.2F) {
                 NaturesAuraAPI.instance().spawnMagicParticle(
-                        MathHelper.lerp(i, this.prevPosX, this.getPosX()),
+                        Mth.lerp(i, this.prevPosX, this.getPosX()),
-                        MathHelper.lerp(i, this.prevPosY, this.getPosY()),
+                        Mth.lerp(i, this.prevPosY, this.getPosY()),
-                        MathHelper.lerp(i, this.prevPosZ, this.getPosZ()),
+                        Mth.lerp(i, this.prevPosZ, this.getPosZ()),
                         this.rand.nextGaussian() * 0.01F, this.rand.nextGaussian() * 0.01F, this.rand.nextGaussian() * 0.01F,
                         0xffcb5c, this.rand.nextFloat() * 0.5F + 1, 20, 0, false, true);
             }

src/main/java/de/ellpeck/naturesaura/entities/EntityMoverMinecart.java

@@ -17,7 +17,7 @@ import net.minecraft.nbt.LongNBT;
 import net.minecraft.network.IPacket;
 import net.minecraft.util.DamageSource;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.level.GameRules;
@@ -55,7 +55,7 @@ public class EntityMoverMinecart extends AbstractMinecartEntity {
         if (!this.spotOffsets.isEmpty() && this.level.getGameTime() % 10 == 0)
             PacketHandler.sendToAllAround(this.level, pos, 32, new PacketParticles(
                     (float) this.getPosX(), (float) this.getPosY(), (float) this.getPosZ(), PacketParticles.Type.MOVER_CART,
-                    MathHelper.floor(this.getMotion().getX() * 100F), MathHelper.floor(this.getMotion().getY() * 100F), MathHelper.floor(this.getMotion().getZ() * 100F)));
+                    Mth.floor(this.getMotion().getX() * 100F), Mth.floor(this.getMotion().getY() * 100F), Mth.floor(this.getMotion().getZ() * 100F)));
 
         if (pos.distanceSq(this.lastPosition) < 8 * 8)
             return;
@@ -75,7 +75,7 @@ public class EntityMoverMinecart extends AbstractMinecartEntity {
             int drained = chunk.drainAura(spot, toMove, false, false);
             if (drained <= 0)
                 continue;
-            int toLose = MathHelper.ceil(drained / 250F);
+            int toLose = Mth.ceil(drained / 250F);
             BlockPos newSpot = newPos.add(offset);
             IAuraChunk.getAuraChunk(newLevel, newSpot).storeAura(newSpot, drained - toLose, false, false);
         }

src/main/java/de/ellpeck/naturesaura/entities/EntityStructureFinder.java

@@ -14,7 +14,7 @@ import net.minecraft.network.datasync.EntityDataManager;
 import net.minecraft.particles.ParticleTypes;
 import net.minecraft.util.SoundEvents;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.level.Level;
 import net.minecraftforge.fml.network.NetworkHooks;
@@ -58,7 +58,7 @@ public class EntityStructureFinder extends EyeOfEnderEntity {
         double d1 = pos.getZ();
         double d2 = d0 - this.getPosX();
         double d3 = d1 - this.getPosZ();
-        float f = MathHelper.sqrt(d2 * d2 + d3 * d3);
+        float f = Mth.sqrt(d2 * d2 + d3 * d3);
         if (f > 12.0F) {
             this.targetX = this.getPosX() + d2 / (double) f * 12.0D;
             this.targetZ = this.getPosZ() + d3 / (double) f * 12.0D;
@@ -81,9 +81,9 @@ public class EntityStructureFinder extends EyeOfEnderEntity {
         double d0 = this.getPosX() + vec3d.x;
         double d1 = this.getPosY() + vec3d.y;
         double d2 = this.getPosZ() + vec3d.z;
-        float f = MathHelper.sqrt(horizontalMag(vec3d));
+        float f = Mth.sqrt(horizontalMag(vec3d));
-        this.rotationYaw = (float) (MathHelper.atan2(vec3d.x, vec3d.z) * (double) (180F / (float) Math.PI));
+        this.rotationYaw = (float) (Mth.atan2(vec3d.x, vec3d.z) * (double) (180F / (float) Math.PI));
-        this.rotationPitch = (float) (MathHelper.atan2(vec3d.y, f) * (double) (180F / (float) Math.PI));
+        this.rotationPitch = (float) (Mth.atan2(vec3d.y, f) * (double) (180F / (float) Math.PI));
         while (this.rotationPitch - this.prevRotationPitch < -180.0F)
             this.prevRotationPitch -= 360.0F;
         while (this.rotationPitch - this.prevRotationPitch >= 180.0F)
@@ -92,14 +92,14 @@ public class EntityStructureFinder extends EyeOfEnderEntity {
             this.prevRotationYaw -= 360.0F;
         while (this.rotationYaw - this.prevRotationYaw >= 180.0F)
             this.prevRotationYaw += 360.0F;
-        this.rotationPitch = MathHelper.lerp(0.2F, this.prevRotationPitch, this.rotationPitch);
+        this.rotationPitch = Mth.lerp(0.2F, this.prevRotationPitch, this.rotationPitch);
-        this.rotationYaw = MathHelper.lerp(0.2F, this.prevRotationYaw, this.rotationYaw);
+        this.rotationYaw = Mth.lerp(0.2F, this.prevRotationYaw, this.rotationYaw);
         if (!this.level.isClientSide) {
             double d3 = this.targetX - d0;
             double d4 = this.targetZ - d2;
             float f1 = (float) Math.sqrt(d3 * d3 + d4 * d4);
-            float f2 = (float) MathHelper.atan2(d4, d3);
+            float f2 = (float) Mth.atan2(d4, d3);
-            double d5 = MathHelper.lerp(0.0025D, f, f1);
+            double d5 = Mth.lerp(0.0025D, f, f1);
             double d6 = vec3d.y;
             if (f1 < 1.0F) {
                 d5 *= 0.8D;

src/main/java/de/ellpeck/naturesaura/events/ClientEvents.java

@@ -33,7 +33,7 @@ import net.minecraft.util.Tuple;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.BlockRayTraceResult;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.util.text.TextFormatting;
 import net.minecraft.level.Level;
@@ -109,10 +109,10 @@ public class ClientEvents {
 
                 if (!mc.isGamePaused()) {
                     if (mc.level.getGameTime() % 20 == 0) {
-                        int amount = MathHelper.floor(190 * ModConfig.instance.excessParticleAmount.get());
+                        int amount = Mth.floor(190 * ModConfig.instance.excessParticleAmount.get());
                         for (int i = 0; i < amount; i++) {
-                            int x = MathHelper.floor(mc.player.getPosX()) + mc.level.rand.nextInt(64) - 32;
+                            int x = Mth.floor(mc.player.getPosX()) + mc.level.rand.nextInt(64) - 32;
-                            int z = MathHelper.floor(mc.player.getPosZ()) + mc.level.rand.nextInt(64) - 32;
+                            int z = Mth.floor(mc.player.getPosZ()) + mc.level.rand.nextInt(64) - 32;
                             BlockPos pos = new BlockPos(x, mc.level.getHeight(Heightmap.Type.WORLD_SURFACE, x, z) - 1, z);
                             BlockState state = mc.level.getBlockState(pos);
                             Block block = state.getBlock();
@@ -262,7 +262,7 @@ public class ClientEvents {
             if (mc.player != null) {
                 if (!heldCache.isEmpty()) {
                     IAuraContainer container = heldCache.getCapability(NaturesAuraAPI.capAuraContainer, null).orElse(null);
-                    int width = MathHelper.ceil(container.getStoredAura() / (float) container.getMaxAura() * 80);
+                    int width = Mth.ceil(container.getStoredAura() / (float) container.getMaxAura() * 80);
 
                     int conf = ModConfig.instance.cacheBarLocation.get();
                     int x = res.getScaledWidth() / 2 + (conf == 0 ? -173 - (mc.player.getHeldItemOffhand().isEmpty() ? 0 : 29) : 93);
@@ -307,7 +307,7 @@ public class ClientEvents {
                         float textX = conf % 2 == 0 ? 3 : res.getScaledWidth() - 3 - mc.fontRenderer.getStringWidth(text) * textScale;
                         float textY = conf < 2 ? 3 : res.getScaledHeight() - 3 - 6;
 
-                        int tHeight = MathHelper.ceil(MathHelper.clamp(totalPercentage, 0F, 1F) * 50);
+                        int tHeight = Mth.ceil(Mth.clamp(totalPercentage, 0F, 1F) * 50);
                         int y = !heldOcular.isEmpty() && totalPercentage > 1F ? startY + 26 : startY;
                         if (tHeight < 50)
                             AbstractGui.blit(stack, startX, y, 6, 12, 6, 50 - tHeight, 256, 256);
@@ -315,13 +315,13 @@ public class ClientEvents {
                             AbstractGui.blit(stack, startX, y + 50 - tHeight, 0, 12 + 50 - tHeight, 6, tHeight, 256, 256);
 
                         if (!heldOcular.isEmpty()) {
-                            int topHeight = MathHelper.ceil(MathHelper.clamp((totalPercentage - 1F) * 2F, 0F, 1F) * 25);
+                            int topHeight = Mth.ceil(Mth.clamp((totalPercentage - 1F) * 2F, 0F, 1F) * 25);
                             if (topHeight > 0) {
                                 if (topHeight < 25)
                                     AbstractGui.blit(stack, startX, startY, 18, 12, 6, 25 - topHeight, 256, 256);
                                 AbstractGui.blit(stack, startX, startY + 25 - topHeight, 12, 12 + 25 - topHeight, 6, topHeight, 256, 256);
                             }
-                            int bottomHeight = MathHelper.floor(MathHelper.clamp((totalPercentage + 1F) * 2F - 1F, 0F, 1F) * 25);
+                            int bottomHeight = Mth.floor(Mth.clamp((totalPercentage + 1F) * 2F - 1F, 0F, 1F) * 25);
                             if (bottomHeight < 25) {
                                 AbstractGui.blit(stack, startX, startY + 51, 18, 12, 6, 25 - bottomHeight, 256, 256);
                                 if (bottomHeight > 0)
@@ -447,7 +447,7 @@ public class ClientEvents {
 
         int x = res.getScaledWidth() / 2 - 40;
         int y = res.getScaledHeight() / 2 + yOffset;
-        int width = MathHelper.ceil(stored / (float) max * 80);
+        int width = Mth.ceil(stored / (float) max * 80);
 
         mc.getTextureManager().bindTexture(OVERLAYS);
         if (width < 80)

src/main/java/de/ellpeck/naturesaura/gen/WorldGenAncientTree.java

@@ -9,7 +9,7 @@ import net.minecraft.block.RotatedPillarBlock;
 import net.minecraft.block.material.Material;
 import net.minecraft.util.Direction.Axis;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.ISeedReader;
 import net.minecraft.level.gen.ChunkGenerator;
 import net.minecraft.level.gen.ILevelGenerationReader;
@@ -120,7 +120,7 @@ public class LevelGenAncientTree extends Feature<BaseTreeFeatureConfig> {
     }
 
     private int getHighestCoord(BlockPos pos) {
-        return Math.max(MathHelper.abs(pos.getX()), Math.max(MathHelper.abs(pos.getY()), MathHelper.abs(pos.getZ())));
+        return Math.max(Mth.abs(pos.getX()), Math.max(Mth.abs(pos.getY()), Mth.abs(pos.getZ())));
     }
 
     private Axis getLogAxis(BlockPos pos, BlockPos goal) {

src/main/java/de/ellpeck/naturesaura/gen/WorldGenAuraBloom.java

@@ -6,7 +6,7 @@ import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.tileentity.BlockEntity;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.ISeedReader;
 import net.minecraft.level.gen.ChunkGenerator;
 import net.minecraft.level.gen.Heightmap;
@@ -36,11 +36,11 @@ public class LevelGenAuraBloom extends Feature<NoFeatureConfig> {
         int startX = pos.getX() + rand.nextInt(16);
         int startZ = pos.getZ() + rand.nextInt(16);
         boolean any = false;
-        for (int i = MathHelper.nextInt(rand, 3, 8); i > 0; i--) {
+        for (int i = Mth.nextInt(rand, 3, 8); i > 0; i--) {
-            int offX = startX + MathHelper.nextInt(rand, -5, 5);
+            int offX = startX + Mth.nextInt(rand, -5, 5);
-            int offZ = startZ + MathHelper.nextInt(rand, -5, 5);
+            int offZ = startZ + Mth.nextInt(rand, -5, 5);
             if (this.nether) {
-                int y = MathHelper.nextInt(rand, 0, 128);
+                int y = Mth.nextInt(rand, 0, 128);
                 for (int off = 0; off < 64; off++) {
                     // try to find a good location in both directions of the random pos
                     if (this.tryPlace(levelIn, new BlockPos(offX, y - off, offZ)) || this.tryPlace(levelIn, new BlockPos(offX, y + off, offZ))) {

src/main/java/de/ellpeck/naturesaura/gui/ContainerEnderCrate.java

@@ -1,16 +1,16 @@
 package de.ellpeck.naturesaura.gui;
 
-import net.minecraft.entity.player.Player;
+import net.minecraft.world.entity.player.Player;
-import net.minecraft.inventory.container.Container;
+import net.minecraft.world.inventory.AbstractContainerMenu;
-import net.minecraft.inventory.container.ContainerType;
+import net.minecraft.world.inventory.MenuType;
-import net.minecraft.inventory.container.Slot;
+import net.minecraft.world.inventory.Slot;
-import net.minecraft.item.ItemStack;
+import net.minecraft.world.item.ItemStack;
 import net.minecraftforge.items.IItemHandler;
 import net.minecraftforge.items.SlotItemHandler;
 
-public class ContainerEnderCrate extends Container {
+public class ContainerEnderCrate extends AbstractContainerMenu {
 
-    public ContainerEnderCrate(ContainerType<ContainerEnderCrate> type, int id, Player player, IItemHandler handler) {
+    public ContainerEnderCrate(MenuType<ContainerEnderCrate> type, int id, Player player, IItemHandler handler) {
         super(type, id);
         int i = (3 - 4) * 18;
         for (int j = 0; j < 3; ++j)
@@ -18,37 +18,38 @@ public class ContainerEnderCrate extends Container {
                 this.addSlot(new SlotItemHandler(handler, k + j * 9, 8 + k * 18, 18 + j * 18));
         for (int l = 0; l < 3; ++l)
             for (int j1 = 0; j1 < 9; ++j1)
-                this.addSlot(new Slot(player.inventory, j1 + l * 9 + 9, 8 + j1 * 18, 103 + l * 18 + i));
+                this.addSlot(new Slot(player.getInventory(), j1 + l * 9 + 9, 8 + j1 * 18, 103 + l * 18 + i));
         for (int i1 = 0; i1 < 9; ++i1)
-            this.addSlot(new Slot(player.inventory, i1, 8 + i1 * 18, 161 + i));
+            this.addSlot(new Slot(player.getInventory(), i1, 8 + i1 * 18, 161 + i));
     }
 
     @Override
-    public boolean canInteractWith(Player playerIn) {
+    public boolean stillValid(Player playerIn) {
         return true;
     }
 
     @Override
-    public ItemStack transferStackInSlot(Player playerIn, int index) {
+    public ItemStack quickMoveStack(Player player, int index) {
         ItemStack itemstack = ItemStack.EMPTY;
-        Slot slot = this.inventorySlots.get(index);
+        Slot slot = this.slots.get(index);
 
-        if (slot != null && slot.getHasStack()) {
+        if (slot != null && slot.hasItem()) {
-            ItemStack itemstack1 = slot.getStack();
+            ItemStack itemstack1 = slot.getItem();
             itemstack = itemstack1.copy();
 
             if (index < 3 * 9) {
-                if (!this.mergeItemStack(itemstack1, 3 * 9, this.inventorySlots.size(), true))
+                if (!this.moveItemStackTo(itemstack1, 3 * 9, this.slots.size(), true))
                     return ItemStack.EMPTY;
-            } else if (!this.mergeItemStack(itemstack1, 0, 3 * 9, false))
+            } else if (!this.moveItemStackTo(itemstack1, 0, 3 * 9, false))
                 return ItemStack.EMPTY;
 
             if (itemstack1.isEmpty())
-                slot.putStack(ItemStack.EMPTY);
+                slot.set(ItemStack.EMPTY);
             else
-                slot.onSlotChanged();
+                slot.setChanged();
         }
 
         return itemstack;
     }
+
 }

src/main/java/de/ellpeck/naturesaura/gui/ModContainers.java

@@ -1,10 +1,10 @@
 package de.ellpeck.naturesaura.gui;
 
-import net.minecraft.inventory.container.ContainerType;
+import net.minecraft.world.inventory.MenuType;
 
 @SuppressWarnings("FieldNamingConvention")
 public final class ModContainers {
 
-    public static ContainerType<ContainerEnderCrate> ENDER_CRATE;
+    public static MenuType<ContainerEnderCrate> ENDER_CRATE;
-    public static ContainerType<ContainerEnderCrate> ENDER_ACCESS;
+    public static MenuType<ContainerEnderCrate> ENDER_ACCESS;
 }

src/main/java/de/ellpeck/naturesaura/items/ItemAuraBottle.java

@@ -6,52 +6,51 @@ import de.ellpeck.naturesaura.api.aura.type.IAuraType;
 import de.ellpeck.naturesaura.data.ItemModelGenerator;
 import de.ellpeck.naturesaura.reg.IColorProvidingItem;
 import de.ellpeck.naturesaura.reg.ICustomItemModel;
-import net.minecraft.block.BlockState;
+import net.minecraft.client.color.item.ItemColor;
-import net.minecraft.block.DispenserBlock;
+import net.minecraft.core.NonNullList;
-import net.minecraft.client.renderer.color.IItemColor;
+import net.minecraft.core.dispenser.DefaultDispenseItemBehavior;
-import net.minecraft.entity.player.Player;
+import net.minecraft.network.chat.Component;
-import net.minecraft.item.Item;
+import net.minecraft.network.chat.TranslatableComponent;
-import net.minecraft.item.ItemGroup;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.item.ItemStack;
+import net.minecraft.sounds.SoundEvents;
-import net.minecraft.util.*;
+import net.minecraft.sounds.SoundSource;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.item.CreativeModeTab;
-import net.minecraft.util.math.RayTraceContext;
+import net.minecraft.world.item.Item;
-import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.util.text.ITextComponent;
+import net.minecraft.world.level.ClipContext;
-import net.minecraft.util.text.TranslationTextComponent;
+import net.minecraft.world.level.Level;
-import net.minecraft.level.Level;
+import net.minecraft.world.level.block.DispenserBlock;
+import net.minecraft.world.phys.HitResult;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.event.entity.player.PlayerInteractEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 
-import static net.minecraft.dispenser.DefaultDispenseItemBehavior.doDispense;
-
 public class ItemAuraBottle extends ItemImpl implements IColorProvidingItem, ICustomItemModel {
 
     public ItemAuraBottle(Item emptyBottle) {
         super("aura_bottle");
         MinecraftForge.EVENT_BUS.register(new EventHandler());
 
-        DispenserBlock.registerDispenseBehavior(emptyBottle, (source, stack) -> {
+        DispenserBlock.registerBehavior(emptyBottle, (source, stack) -> {
             Level level = source.getLevel();
-            BlockState state = source.getBlockState();
+            var state = source.getBlockState();
-            Direction facing = state.get(DispenserBlock.FACING);
+            var facing = state.getValue(DispenserBlock.FACING);
-            BlockPos offset = source.getBlockPos().offset(facing);
+            var offset = source.getPos().relative(facing);
-            BlockState offsetState = level.getBlockState(offset);
+            var offsetState = level.getBlockState(offset);
 
-            ItemStack dispense = stack.split(1);
+            var dispense = stack.split(1);
-            if (offsetState.getBlock().isAir(offsetState, level, offset)) {
+            if (offsetState.isAir()) {
                 if (IAuraChunk.getAuraInArea(level, offset, 30) >= 100000) {
                     dispense = setType(new ItemStack(ItemAuraBottle.this), IAuraType.forLevel(level));
 
-                    BlockPos spot = IAuraChunk.getHighestSpot(level, offset, 30, offset);
+                    var spot = IAuraChunk.getHighestSpot(level, offset, 30, offset);
                     IAuraChunk.getAuraChunk(level, spot).drainAura(spot, 20000);
                 }
             }
 
-            doDispense(level, dispense, 6, facing, DispenserBlock.getDispensePosition(source));
+            DefaultDispenseItemBehavior.spawnItem(level, dispense, 6, facing, DispenserBlock.getDispensePosition(source));
             return stack;
         });
     }
@@ -59,7 +58,7 @@ public class ItemAuraBottle extends ItemImpl implements IColorProvidingItem, ICu
     public static IAuraType getType(ItemStack stack) {
         if (!stack.hasTag())
             return NaturesAuraAPI.TYPE_OTHER;
-        String type = stack.getTag().getString("stored_type");
+        var type = stack.getTag().getString("stored_type");
         if (type.isEmpty())
             return NaturesAuraAPI.TYPE_OTHER;
         return NaturesAuraAPI.AURA_TYPES.get(new ResourceLocation(type));
@@ -71,10 +70,10 @@ public class ItemAuraBottle extends ItemImpl implements IColorProvidingItem, ICu
     }
 
     @Override
-    public void fillItemGroup(ItemGroup tab, NonNullList<ItemStack> items) {
+    public void fillItemCategory(CreativeModeTab tab, NonNullList<ItemStack> items) {
-        if (this.isInGroup(tab)) {
+        if (this.allowdedIn(tab)) {
-            for (IAuraType type : NaturesAuraAPI.AURA_TYPES.values()) {
+            for (var type : NaturesAuraAPI.AURA_TYPES.values()) {
-                ItemStack stack = new ItemStack(this);
+                var stack = new ItemStack(this);
                 setType(stack, type);
                 items.add(stack);
             }
@@ -82,13 +81,13 @@ public class ItemAuraBottle extends ItemImpl implements IColorProvidingItem, ICu
     }
 
     @Override
-    public ITextComponent getDisplayName(ItemStack stack) {
+    public Component getName(ItemStack stack) {
-        return new TranslationTextComponent(stack.getTranslationKey() + "." + getType(stack).getName());
+        return new TranslatableComponent(stack.getDescriptionId() + "." + getType(stack).getName());
     }
 
     @Override
     @OnlyIn(Dist.CLIENT)
-    public IItemColor getItemColor() {
+    public ItemColor getItemColor() {
         return (stack, tintIndex) -> tintIndex > 0 ? getType(stack).getColor() : 0xFFFFFF;
     }
 
@@ -103,30 +102,29 @@ public class ItemAuraBottle extends ItemImpl implements IColorProvidingItem, ICu
 
         @SubscribeEvent
         public void onRightClick(PlayerInteractEvent.RightClickItem event) {
-            ItemStack held = event.getItemStack();
+            var held = event.getItemStack();
             if (held.isEmpty() || held.getItem() != ModItems.BOTTLE_TWO_THE_REBOTTLING)
                 return;
-            Player player = event.getPlayer();
+            var player = event.getPlayer();
-            RayTraceResult ray = rayTrace(player.level, player, RayTraceContext.FluidMode.NONE);
+            HitResult ray = getPlayerPOVHitResult(player.level, player, ClipContext.Fluid.NONE);
-            if (ray.getType() == RayTraceResult.Type.BLOCK)
+            if (ray.getType() == HitResult.Type.BLOCK)
                 return;
-            BlockPos pos = player.getPosition();
+            var pos = player.blockPosition();
             if (IAuraChunk.getAuraInArea(player.level, pos, 30) < 100000)
                 return;
 
             if (!player.level.isClientSide) {
                 held.shrink(1);
 
-                player.inventory.addItemStackToInventory(
+                player.getInventory().add(setType(new ItemStack(ItemAuraBottle.this), IAuraType.forLevel(player.level)));
-                        setType(new ItemStack(ItemAuraBottle.this), IAuraType.forLevel(player.level)));
 
-                BlockPos spot = IAuraChunk.getHighestSpot(player.level, pos, 30, pos);
+                var spot = IAuraChunk.getHighestSpot(player.level, pos, 30, pos);
                 IAuraChunk.getAuraChunk(player.level, spot).drainAura(spot, 20000);
 
-                player.level.playSound(null, player.getPosX(), player.getPosY(), player.getPosZ(),
+                player.level.playSound(null, player.getX(), player.getY(), player.getZ(),
-                        SoundEvents.ITEM_BOTTLE_FILL_DRAGONBREATH, SoundCategory.PLAYERS, 1F, 1F);
+                        SoundEvents.BOTTLE_FILL_DRAGONBREATH, SoundSource.PLAYERS, 1F, 1F);
             }
-            player.swingArm(event.getHand());
+            player.swing(event.getHand());
         }
 
     }

src/main/java/de/ellpeck/naturesaura/items/ItemCrimsonMeal.java

@@ -7,7 +7,7 @@ import net.minecraft.block.NetherWartBlock;
 import net.minecraft.item.ItemUseContext;
 import net.minecraft.util.InteractionResult;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.level.Level;
 import net.minecraft.level.gen.feature.IFeatureConfig;
 import net.minecraft.level.server.ServerLevel;
@@ -39,7 +39,7 @@ public class ItemCrimsonMeal extends ItemImpl {
         } else if (level.getBlockState(pos.up()).isAir(level, pos.up()) && level.getBlockState(pos).getBlock() == Blocks.SOUL_SAND) {
             if (!level.isClientSide) {
                 for (int i = level.rand.nextInt(5); i >= 0; i--) {
-                    BlockPos offset = pos.add(MathHelper.nextInt(level.rand, -3, 3), 1, MathHelper.nextInt(level.rand, -3, 3));
+                    BlockPos offset = pos.add(Mth.nextInt(level.rand, -3, 3), 1, Mth.nextInt(level.rand, -3, 3));
                     if (level.getBlockState(offset.down()).getBlock() == Blocks.SOUL_SAND && level.getBlockState(offset).isAir(level, offset)) {
                         level.setBlockState(offset, Blocks.NETHER_WART.getDefaultState());
                     }

src/main/java/de/ellpeck/naturesaura/items/ItemImpl.java

@@ -3,7 +3,7 @@ package de.ellpeck.naturesaura.items;
 import de.ellpeck.naturesaura.NaturesAura;
 import de.ellpeck.naturesaura.reg.IModItem;
 import de.ellpeck.naturesaura.reg.ModRegistry;
-import net.minecraft.item.Item;
+import net.minecraft.world.item.Item;
 
 public class ItemImpl extends Item implements IModItem {
 
@@ -14,7 +14,7 @@ public class ItemImpl extends Item implements IModItem {
     }
 
     public ItemImpl(String baseName, Item.Properties properties) {
-        super(properties.group(NaturesAura.CREATIVE_TAB));
+        super(properties.tab(NaturesAura.CREATIVE_TAB));
         this.baseName = baseName;
         ModRegistry.add(this);
     }

src/main/java/de/ellpeck/naturesaura/items/ItemLootFinder.java

@@ -32,7 +32,7 @@ public class ItemLootFinder extends ItemImpl {
             inst.setParticleCulling(false);
 
             BlockPos pos = playerIn.getPosition();
-            Helper.getTileEntitiesInArea(levelIn, pos, 64, tile -> {
+            Helper.getBlockEntitiesInArea(levelIn, pos, 64, tile -> {
                 if (tile.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY).isPresent() || tile instanceof MobSpawnerBlockEntity) {
                     inst.spawnMagicParticle(
                             tile.getPos().getX() + 0.5F, tile.getPos().getY() + 0.5F, tile.getPos().getZ() + 0.5F,

src/main/java/de/ellpeck/naturesaura/items/ModItems.java

@@ -1,9 +1,10 @@
 package de.ellpeck.naturesaura.items;
 
-import net.minecraft.item.Item;
+import net.minecraft.world.item.Item;
 
 @SuppressWarnings("FieldNamingConvention")
 public final class ModItems {
+
     public static Item INFUSED_IRON_PICKAXE;
     public static Item INFUSED_IRON_AXE;
     public static Item INFUSED_IRON_SHOVEL;

src/main/java/de/ellpeck/naturesaura/items/tools/ItemAxe.java

@@ -8,24 +8,25 @@ import de.ellpeck.naturesaura.items.ModItems;
 import de.ellpeck.naturesaura.reg.ICustomItemModel;
 import de.ellpeck.naturesaura.reg.IModItem;
 import de.ellpeck.naturesaura.reg.ModRegistry;
-import net.minecraft.block.BlockState;
+import net.minecraft.core.BlockPos;
-import net.minecraft.block.material.Material;
-import net.minecraft.entity.player.Player;
-import net.minecraft.item.AxeItem;
-import net.minecraft.item.IItemTier;
-import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.tags.BlockTags;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.item.AxeItem;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.Tier;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.material.Material;
 import net.minecraftforge.common.capabilities.ICapabilityProvider;
 
 import javax.annotation.Nullable;
 
 public class ItemAxe extends AxeItem implements IModItem, ICustomItemModel {
+
     private final String baseName;
 
-    public ItemAxe(String baseName, IItemTier material, float damage, float speed) {
+    public ItemAxe(String baseName, Tier material, float damage, float speed) {
-        super(material, damage, speed, new Properties().group(NaturesAura.CREATIVE_TAB));
+        super(material, damage, speed, new Properties().tab(NaturesAura.CREATIVE_TAB));
         this.baseName = baseName;
         ModRegistry.add(this);
     }
@@ -38,7 +39,7 @@ public class ItemAxe extends AxeItem implements IModItem, ICustomItemModel {
     @Override
     public float getDestroySpeed(ItemStack stack, BlockState state) {
         if (state.getMaterial() == Material.LEAVES) {
-            return this.efficiency;
+            return this.speed;
         } else {
             return super.getDestroySpeed(stack, state);
         }

src/main/java/de/ellpeck/naturesaura/items/tools/ItemPickaxe.java

@@ -10,21 +10,21 @@ import de.ellpeck.naturesaura.misc.LevelData;
 import de.ellpeck.naturesaura.reg.ICustomItemModel;
 import de.ellpeck.naturesaura.reg.IModItem;
 import de.ellpeck.naturesaura.reg.ModRegistry;
-import net.minecraft.block.BlockState;
+import net.minecraft.core.BlockPos;
-import net.minecraft.entity.Entity;
-import net.minecraft.entity.item.ItemEntity;
-import net.minecraft.entity.player.Player;
-import net.minecraft.item.IItemTier;
-import net.minecraft.item.ItemStack;
-import net.minecraft.item.ItemUseContext;
-import net.minecraft.item.PickaxeItem;
 import net.minecraft.nbt.CompoundTag;
-import net.minecraft.util.InteractionResult;
+import net.minecraft.sounds.SoundEvents;
-import net.minecraft.util.SoundCategory;
+import net.minecraft.sounds.SoundSource;
-import net.minecraft.util.SoundEvents;
+import net.minecraft.world.InteractionResult;
-import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.world.entity.Entity;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.entity.item.ItemEntity;
-import net.minecraft.level.Level;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.PickaxeItem;
+import net.minecraft.world.item.Tier;
+import net.minecraft.world.item.context.UseOnContext;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.phys.AABB;
 import net.minecraftforge.common.capabilities.ICapabilityProvider;
 
 import javax.annotation.Nullable;
@@ -33,8 +33,8 @@ public class ItemPickaxe extends PickaxeItem implements IModItem, ICustomItemMod
 
     private final String baseName;
 
-    public ItemPickaxe(String baseName, IItemTier material, int damage, float speed) {
+    public ItemPickaxe(String baseName, Tier material, int damage, float speed) {
-        super(material, damage, speed, new Properties().group(NaturesAura.CREATIVE_TAB));
+        super(material, damage, speed, new Properties().tab(NaturesAura.CREATIVE_TAB));
         this.baseName = baseName;
         ModRegistry.add(this);
     }
@@ -45,23 +45,23 @@ public class ItemPickaxe extends PickaxeItem implements IModItem, ICustomItemMod
     }
 
     @Override
-    public InteractionResult onItemUse(ItemUseContext context) {
+    public InteractionResult useOn(UseOnContext context) {
         if (this == ModItems.INFUSED_IRON_PICKAXE) {
             Player player = context.getPlayer();
             Level level = context.getLevel();
-            BlockPos pos = context.getPos();
+            BlockPos pos = context.getClickedPos();
-            ItemStack stack = player.getHeldItem(context.getHand());
+            ItemStack stack = player.getItemInHand(context.getHand());
             BlockState state = level.getBlockState(pos);
             BlockState result = NaturesAuraAPI.BOTANIST_PICKAXE_CONVERSIONS.get(state);
             if (result != null) {
                 if (!level.isClientSide) {
-                    level.setBlockState(pos, result);
+                    level.setBlockAndUpdate(pos, result);
 
                     LevelData data = (LevelData) ILevelData.getLevelData(level);
                     data.addMossStone(pos);
                 }
-                level.playSound(player, pos, SoundEvents.BLOCK_STONE_PLACE, SoundCategory.BLOCKS, 1.0F, 1.0F);
+                level.playSound(player, pos, SoundEvents.STONE_PLACE, SoundSource.BLOCKS, 1.0F, 1.0F);
-                stack.damageItem(15, player, Player -> Player.sendBreakAnimation(context.getHand()));
+                stack.hurtAndBreak(15, player, p -> p.broadcastBreakEvent(context.getHand()));
                 return InteractionResult.SUCCESS;
             }
         }
@@ -75,13 +75,13 @@ public class ItemPickaxe extends PickaxeItem implements IModItem, ICustomItemMod
                 return;
             if (!isSelected || levelIn.isClientSide)
                 return;
-            AxisAlignedBB bounds = new AxisAlignedBB(entityIn.getPosition()).grow(3.5F);
+            AABB bounds = new AABB(entityIn.getOnPos()).inflate(3.5F);
-            for (ItemEntity item : levelIn.getEntitiesWithinAABB(ItemEntity.class, bounds)) {
+            for (ItemEntity item : levelIn.getEntitiesOfClass(ItemEntity.class, bounds)) {
                 // only pick up freshly dropped items
-                if (item.ticksExisted >= 5 || !item.isAlive())
+                if (item.tickCount >= 5 || !item.isAlive())
                     continue;
-                item.setPickupDelay(0);
+                item.setPickUpDelay(0);
-                item.onCollideWithPlayer((Player) entityIn);
+                item.playerTouch((Player) entityIn);
             }
         }
     }

src/main/java/de/ellpeck/naturesaura/items/tools/ItemShovel.java

@@ -7,58 +7,66 @@ import de.ellpeck.naturesaura.items.ModItems;
 import de.ellpeck.naturesaura.reg.ICustomItemModel;
 import de.ellpeck.naturesaura.reg.IModItem;
 import de.ellpeck.naturesaura.reg.ModRegistry;
-import net.minecraft.block.Block;
+import net.minecraft.core.BlockPos;
-import net.minecraft.block.BlockState;
+import net.minecraft.core.Direction;
-import net.minecraft.block.Blocks;
-import net.minecraft.block.material.Material;
-import net.minecraft.entity.player.Player;
-import net.minecraft.item.*;
 import net.minecraft.nbt.CompoundTag;
-import net.minecraft.tileentity.BlockEntity;
+import net.minecraft.sounds.SoundEvents;
-import net.minecraft.util.*;
+import net.minecraft.sounds.SoundSource;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.InteractionHand;
-import net.minecraft.util.math.BlockRayTraceResult;
+import net.minecraft.world.InteractionResult;
-import net.minecraft.level.Level;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.item.BlockItem;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.ShovelItem;
+import net.minecraft.world.item.Tier;
+import net.minecraft.world.item.context.UseOnContext;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.material.Material;
+import net.minecraft.world.phys.BlockHitResult;
 import net.minecraftforge.common.capabilities.ICapabilityProvider;
 
 import javax.annotation.Nullable;
 
 public class ItemShovel extends ShovelItem implements IModItem, ICustomItemModel {
+
     private final String baseName;
 
-    public ItemShovel(String baseName, IItemTier material, float damage, float speed) {
+    public ItemShovel(String baseName, Tier material, float damage, float speed) {
-        super(material, damage, speed, new Properties().group(NaturesAura.CREATIVE_TAB));
+        super(material, damage, speed, new Properties().tab(NaturesAura.CREATIVE_TAB));
         this.baseName = baseName;
         ModRegistry.add(this);
     }
 
     @Override
-    public InteractionResult onItemUse(ItemUseContext context) {
+    public InteractionResult useOn(UseOnContext context) {
         Level level = context.getLevel();
         Player player = context.getPlayer();
-        ItemStack stack = player.getHeldItem(context.getHand());
+        ItemStack stack = player.getItemInHand(context.getHand());
-        BlockPos pos = context.getPos();
+        BlockPos pos = context.getClickedPos();
         BlockState state = level.getBlockState(pos);
         if (this == ModItems.INFUSED_IRON_SHOVEL) {
             int damage = 0;
             if (state.getBlock() == Blocks.DIRT || state.getBlock() == Blocks.MYCELIUM) {
-                if (level.getBlockState(pos.up()).getMaterial() == Material.AIR) {
+                if (level.getBlockState(pos.above()).getMaterial() == Material.AIR) {
-                    level.setBlockState(pos, Blocks.GRASS_BLOCK.getDefaultState());
+                    level.setBlockAndUpdate(pos, Blocks.GRASS_BLOCK.defaultBlockState());
                     damage = 5;
                 }
             } else {
-                int range = player.isSneaking() ? 0 : 1;
+                int range = player.isCrouching() ? 0 : 1;
                 for (int x = -range; x <= range; x++) {
                     for (int y = -range; y <= range; y++) {
-                        BlockPos actualPos = pos.add(x, 0, y);
+                        BlockPos actualPos = pos.offset(x, 0, y);
-                        Direction facing = context.getFace();
+                        Direction facing = context.getClickedFace();
-                        if (player.canPlayerEdit(actualPos.offset(facing), facing, stack)) {
+                        if (player.mayUseItemAt(actualPos.relative(facing), facing, stack)) {
                             if (facing != Direction.DOWN
-                                    && level.getBlockState(actualPos.up()).getMaterial() == Material.AIR
+                                    && level.getBlockState(actualPos.above()).getMaterial() == Material.AIR
                                     && level.getBlockState(actualPos).getBlock() == Blocks.GRASS_BLOCK) {
-                                if (!level.isClientSide) {
+                                if (!level.isClientSide)
-                                    level.setBlockState(actualPos, Blocks.GRASS_PATH.getDefaultState(), 11);
+                                    level.setBlock(actualPos, Blocks.DIRT_PATH.defaultBlockState(), 11);
-                                }
                                 damage = 1;
                             }
                         }
@@ -67,23 +75,23 @@ public class ItemShovel extends ShovelItem implements IModItem, ICustomItemModel
             }
 
             if (damage > 0) {
-                level.playSound(player, pos, SoundEvents.ITEM_SHOVEL_FLATTEN, SoundCategory.BLOCKS, 1.0F, 1.0F);
+                level.playSound(player, pos, SoundEvents.SHOVEL_FLATTEN, SoundSource.BLOCKS, 1.0F, 1.0F);
-                stack.damageItem(damage, player, Player -> Player.sendBreakAnimation(context.getHand()));
+                stack.hurtAndBreak(damage, player, p -> p.broadcastBreakEvent(context.getHand()));
                 return InteractionResult.SUCCESS;
             }
         } else if (this == ModItems.SKY_SHOVEL) {
             if (this.getDestroySpeed(stack, state) <= 1)
-                return super.onItemUse(context);
+                return super.useOn(context);
-            Hand otherHand = context.getHand() == Hand.MAIN_HAND ? Hand.OFF_HAND : Hand.MAIN_HAND;
+            InteractionHand otherHand = context.getHand() == InteractionHand.MAIN_HAND ? InteractionHand.OFF_HAND : InteractionHand.MAIN_HAND;
-            ItemStack other = player.getHeldItem(otherHand);
+            ItemStack other = player.getItemInHand(otherHand);
             if (other.isEmpty() || !(other.getItem() instanceof BlockItem))
-                return super.onItemUse(context);
+                return super.useOn(context);
             level.removeBlock(pos, false);
             BlockEntity tile = state.hasBlockEntity() ? level.getBlockEntity(pos) : null;
-            Block.spawnDrops(state, level, pos, tile, null, ItemStack.EMPTY);
+            Block.dropResources(state, level, pos, tile, null, ItemStack.EMPTY);
-            ItemUseContext newContext = new ItemUseContext(player, otherHand, new BlockRayTraceResult(context.getHitVec(), context.getFace(), context.getPos(), context.isInside()));
+            UseOnContext newContext = new UseOnContext(player, otherHand, new BlockHitResult(context.getClickLocation(), context.getClickedFace(), context.getClickedPos(), context.isInside()));
-            other.onItemUse(newContext);
+            other.useOn(newContext);
-            stack.damageItem(1, player, p -> p.sendBreakAnimation(context.getHand()));
+            stack.hurtAndBreak(1, player, p -> p.broadcastBreakEvent(context.getHand()));
             return InteractionResult.SUCCESS;
         }
         return InteractionResult.PASS;

src/main/java/de/ellpeck/naturesaura/misc/LevelData.java

@@ -5,23 +5,22 @@ import com.google.common.collect.ListMultimap;
 import de.ellpeck.naturesaura.Helper;
 import de.ellpeck.naturesaura.api.NaturesAuraAPI;
 import de.ellpeck.naturesaura.api.misc.ILevelData;
-import de.ellpeck.naturesaura.blocks.tiles.ItemStackHandlerNA;
 import de.ellpeck.naturesaura.blocks.tiles.BlockEntitySpawnLamp;
+import de.ellpeck.naturesaura.blocks.tiles.ItemStackHandlerNA;
 import de.ellpeck.naturesaura.chunk.AuraChunk;
 import de.ellpeck.naturesaura.items.ModItems;
 import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
-import net.minecraft.item.ItemStack;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
 import net.minecraft.nbt.CompoundTag;
-import net.minecraft.nbt.INBT;
+import net.minecraft.nbt.ListTag;
-import net.minecraft.nbt.ListNBT;
+import net.minecraft.nbt.LongTag;
-import net.minecraft.nbt.LongNBT;
+import net.minecraft.nbt.Tag;
-import net.minecraft.util.Direction;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.Tuple;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.util.math.vector.Vector3d;
+import net.minecraft.world.phys.Vec3;
 import net.minecraftforge.common.capabilities.Capability;
-import net.minecraftforge.common.util.Constants;
 import net.minecraftforge.common.util.LazyOptional;
 
 import javax.annotation.Nonnull;
@@ -30,7 +29,7 @@ import java.util.*;
 
 public class LevelData implements ILevelData {
 
-    public final ListMultimap<ResourceLocation, Tuple<Vector3d, Integer>> effectPowders = ArrayListMultimap.create();
+    public final ListMultimap<ResourceLocation, Tuple<Vec3, Integer>> effectPowders = ArrayListMultimap.create();
     public final Long2ObjectOpenHashMap<AuraChunk> auraChunksWithSpots = new Long2ObjectOpenHashMap<>();
     public final List<BlockPos> recentlyConvertedMossStones = new ArrayList<>();
     public final Set<BlockEntitySpawnLamp> spawnLamps = new HashSet<>();
@@ -47,7 +46,7 @@ public class LevelData implements ILevelData {
     public CompoundTag serializeNBT() {
         CompoundTag compound = new CompoundTag();
 
-        ListNBT storages = new ListNBT();
+        ListTag storages = new ListTag();
         for (Map.Entry<String, ItemStackHandlerNA> entry : this.enderStorages.entrySet()) {
             ItemStackHandlerNA handler = entry.getValue();
             if (Helper.isEmpty(handler))
@@ -58,9 +57,9 @@ public class LevelData implements ILevelData {
         }
         compound.put("storages", storages);
 
-        ListNBT moss = new ListNBT();
+        ListTag moss = new ListTag();
         for (BlockPos pos : this.recentlyConvertedMossStones)
-            moss.add(LongNBT.valueOf(pos.toLong()));
+            moss.add(LongTag.valueOf(pos.asLong()));
         compound.put("converted_moss", moss);
 
         return compound;
@@ -69,15 +68,15 @@ public class LevelData implements ILevelData {
     @Override
     public void deserializeNBT(CompoundTag compound) {
         this.enderStorages.clear();
-        for (INBT base : compound.getList("storages", 10)) {
+        for (Tag base : compound.getList("storages", 10)) {
             CompoundTag storageComp = (CompoundTag) base;
             ItemStackHandlerNA storage = this.getEnderStorage(storageComp.getString("name"));
             storage.deserializeNBT(storageComp);
         }
 
         this.recentlyConvertedMossStones.clear();
-        for (INBT base : compound.getList("converted_moss", Constants.NBT.TAG_LONG))
+        for (Tag base : compound.getList("converted_moss", Tag.TAG_LONG))
-            this.recentlyConvertedMossStones.add(BlockPos.fromLong(((LongNBT) base).getLong()));
+            this.recentlyConvertedMossStones.add(BlockPos.of(((LongTag) base).getAsLong()));
     }
 
     @Override

src/main/java/de/ellpeck/naturesaura/particles/ParticleMagic.java

@@ -9,7 +9,7 @@ import net.minecraft.client.level.ClientLevel;
 import net.minecraft.entity.Entity;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.ReuseableStream;
-import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Mth;
 import net.minecraft.util.math.shapes.ISelectionContext;
 import net.minecraft.util.math.vector.Quaternion;
 import net.minecraft.util.math.vector.Vector3d;
@@ -97,9 +97,9 @@ public class ParticleMagic extends Particle {
     @Override
     public void renderParticle(IVertexBuilder buffer, ActiveRenderInfo renderInfo, float partialTicks) {
         Vector3d vec3d = renderInfo.getProjectedView();
-        float f = (float) (MathHelper.lerp(partialTicks, this.prevPosX, this.posX) - vec3d.getX());
+        float f = (float) (Mth.lerp(partialTicks, this.prevPosX, this.posX) - vec3d.getX());
-        float f1 = (float) (MathHelper.lerp(partialTicks, this.prevPosY, this.posY) - vec3d.getY());
+        float f1 = (float) (Mth.lerp(partialTicks, this.prevPosY, this.posY) - vec3d.getY());
-        float f2 = (float) (MathHelper.lerp(partialTicks, this.prevPosZ, this.posZ) - vec3d.getZ());
+        float f2 = (float) (Mth.lerp(partialTicks, this.prevPosZ, this.posZ) - vec3d.getZ());
         Quaternion quaternion = renderInfo.getRotation();
         Vector3f[] avector3f = new Vector3f[]{new Vector3f(-1.0F, -1.0F, 0.0F), new Vector3f(-1.0F, 1.0F, 0.0F), new Vector3f(1.0F, 1.0F, 0.0F), new Vector3f(1.0F, -1.0F, 0.0F)};
         float f4 = 0.1F * this.particleScale;

src/main/java/de/ellpeck/naturesaura/potion/PotionBreathless.java

@@ -1,9 +1,9 @@
 package de.ellpeck.naturesaura.potion;
 
-import net.minecraft.entity.LivingEntity;
+import net.minecraft.world.damagesource.DamageSource;
-import net.minecraft.potion.EffectInstance;
+import net.minecraft.world.effect.MobEffectCategory;
-import net.minecraft.potion.EffectType;
+import net.minecraft.world.effect.MobEffectInstance;
-import net.minecraft.util.DamageSource;
+import net.minecraft.world.entity.LivingEntity;
 import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.event.entity.living.LivingHealEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
@@ -15,13 +15,13 @@ public class PotionBreathless extends PotionImpl {
     private final Random random = new Random();
 
     public PotionBreathless() {
-        super("breathless", EffectType.HARMFUL, 0);
+        super("breathless", MobEffectCategory.HARMFUL, 0);
         MinecraftForge.EVENT_BUS.register(this);
     }
 
     @SubscribeEvent
     public void onHeal(LivingHealEvent event) {
-        EffectInstance effect = event.getEntityLiving().getActivePotionEffect(this);
+        MobEffectInstance effect = event.getEntityLiving().getEffect(this);
         if (effect == null)
             return;
         float chance = (effect.getAmplifier() + 1) / 15F;
@@ -31,13 +31,13 @@ public class PotionBreathless extends PotionImpl {
     }
 
     @Override
-    public boolean isReady(int duration, int amplifier) {
+    public boolean isDurationEffectTick(int duration, int amplifier) {
         int mod = 200 >> amplifier;
         return mod > 0 && duration % mod == 0 && this.random.nextBoolean();
     }
 
     @Override
-    public void performEffect(LivingEntity entity, int amplifier) {
+    public void applyEffectTick(LivingEntity entity, int amplifier) {
-        entity.attackEntityFrom(DamageSource.MAGIC, 1F);
+        entity.hurt(DamageSource.MAGIC, 1F);
     }
 }

src/main/java/de/ellpeck/naturesaura/potion/PotionImpl.java

@@ -2,14 +2,14 @@ package de.ellpeck.naturesaura.potion;
 
 import de.ellpeck.naturesaura.reg.IModItem;
 import de.ellpeck.naturesaura.reg.ModRegistry;
-import net.minecraft.potion.Effect;
+import net.minecraft.world.effect.MobEffect;
-import net.minecraft.potion.EffectType;
+import net.minecraft.world.effect.MobEffectCategory;
 
-public class PotionImpl extends Effect implements IModItem {
+public class PotionImpl extends MobEffect implements IModItem {
 
     protected final String baseName;
 
-    protected PotionImpl(String baseName, EffectType type, int liquidColorIn) {
+    protected PotionImpl(String baseName, MobEffectCategory type, int liquidColorIn) {
         super(type, liquidColorIn);
         this.baseName = baseName;
 

src/main/java/de/ellpeck/naturesaura/recipes/AltarRecipe.java

@@ -6,13 +6,13 @@ import de.ellpeck.naturesaura.api.NaturesAuraAPI;
 import de.ellpeck.naturesaura.api.aura.type.IAuraType;
 import de.ellpeck.naturesaura.items.ItemAuraBottle;
 import de.ellpeck.naturesaura.items.ModItems;
-import net.minecraft.item.ItemStack;
+import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.item.crafting.IRecipeSerializer;
+import net.minecraft.network.chat.TranslatableComponent;
-import net.minecraft.item.crafting.IRecipeType;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.item.crafting.Ingredient;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.network.PacketBuffer;
+import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.item.crafting.RecipeSerializer;
-import net.minecraft.util.text.TranslationTextComponent;
+import net.minecraft.world.item.crafting.RecipeType;
 import net.minecraftforge.common.crafting.CraftingHelper;
 import net.minecraftforge.registries.ForgeRegistryEntry;
 
@@ -38,59 +38,59 @@ public class AltarRecipe extends ModRecipe {
     }
 
     @Override
-    public ItemStack getRecipeOutput() {
+    public ItemStack getResultItem() {
         return this.output;
     }
 
     @Override
-    public IRecipeSerializer<?> getSerializer() {
+    public RecipeSerializer<?> getSerializer() {
         return ModRecipes.ALTAR_SERIAIZER;
     }
 
     @Override
-    public IRecipeType<?> getType() {
+    public RecipeType<?> getType() {
         return ModRecipes.ALTAR_TYPE;
     }
 
     public ItemStack getDimensionBottle() {
         ItemStack bottle = ItemAuraBottle.setType(new ItemStack(ModItems.AURA_BOTTLE), this.requiredType);
-        bottle.setDisplayName(new TranslationTextComponent("info." + NaturesAura.MOD_ID + ".required_aura_type." + this.requiredType.getName()));
+        bottle.setHoverName(new TranslatableComponent("info." + NaturesAura.MOD_ID + ".required_aura_type." + this.requiredType.getName()));
         return bottle;
     }
 
-    public static class Serializer extends ForgeRegistryEntry<IRecipeSerializer<?>> implements IRecipeSerializer<AltarRecipe> {
+    public static class Serializer extends ForgeRegistryEntry<RecipeSerializer<?>> implements RecipeSerializer<AltarRecipe> {
 
         @Override
-        public AltarRecipe read(ResourceLocation recipeId, JsonObject json) {
+        public AltarRecipe fromJson(ResourceLocation recipeId, JsonObject json) {
             return new AltarRecipe(
                     recipeId,
-                    Ingredient.deserialize(json.getAsJsonObject("input")),
+                    Ingredient.fromJson(json.getAsJsonObject("input")),
                     CraftingHelper.getItemStack(json.getAsJsonObject("output"), true),
                     NaturesAuraAPI.AURA_TYPES.get(new ResourceLocation(json.get("aura_type").getAsString())),
-                    json.has("catalyst") ? Ingredient.deserialize(json.getAsJsonObject("catalyst")) : Ingredient.EMPTY,
+                    json.has("catalyst") ? Ingredient.fromJson(json.getAsJsonObject("catalyst")) : Ingredient.EMPTY,
                     json.get("aura").getAsInt(),
                     json.get("time").getAsInt());
         }
 
         @Nullable
         @Override
-        public AltarRecipe read(ResourceLocation recipeId, PacketBuffer buffer) {
+        public AltarRecipe fromNetwork(ResourceLocation recipeId, FriendlyByteBuf buffer) {
             return new AltarRecipe(
                     recipeId,
-                    Ingredient.read(buffer),
+                    Ingredient.fromNetwork(buffer),
-                    buffer.readItemStack(),
+                    buffer.readItem(),
                     NaturesAuraAPI.AURA_TYPES.get(buffer.readResourceLocation()),
-                    Ingredient.read(buffer),
+                    Ingredient.fromNetwork(buffer),
                     buffer.readInt(),
                     buffer.readInt());
         }
 
         @Override
-        public void write(PacketBuffer buffer, AltarRecipe recipe) {
+        public void toNetwork(FriendlyByteBuf buffer, AltarRecipe recipe) {
-            recipe.input.write(buffer);
+            recipe.input.toNetwork(buffer);
-            buffer.writeItemStack(recipe.output);
+            buffer.writeItem(recipe.output);
             buffer.writeResourceLocation(recipe.requiredType.getName());
-            recipe.catalyst.write(buffer);
+            recipe.catalyst.toNetwork(buffer);
             buffer.writeInt(recipe.aura);
             buffer.writeInt(recipe.time);
         }

src/main/java/de/ellpeck/naturesaura/recipes/AnimalSpawnerRecipe.java

@@ -2,18 +2,21 @@ package de.ellpeck.naturesaura.recipes;
 
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
-import net.minecraft.entity.Entity;
+import net.minecraft.core.BlockPos;
-import net.minecraft.entity.EntityType;
 import net.minecraft.entity.SpawnReason;
-import net.minecraft.item.ItemStack;
 import net.minecraft.item.crafting.IRecipeSerializer;
-import net.minecraft.item.crafting.IRecipeType;
+import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.item.crafting.Ingredient;
 import net.minecraft.network.PacketBuffer;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.util.math.BlockPos;
+import net.minecraft.server.level.ServerLevel;
-import net.minecraft.level.Level;
+import net.minecraft.world.entity.Entity;
-import net.minecraft.level.server.ServerLevel;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.entity.MobSpawnType;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.crafting.Ingredient;
+import net.minecraft.world.item.crafting.RecipeSerializer;
+import net.minecraft.world.item.crafting.RecipeType;
+import net.minecraft.world.level.Level;
 import net.minecraftforge.registries.ForgeRegistries;
 import net.minecraftforge.registries.ForgeRegistryEntry;
 
@@ -40,30 +43,31 @@ public class AnimalSpawnerRecipe extends ModRecipe {
         // passed position is zero on the client, so we don't want to do initialization stuff for the entity
         if (pos == BlockPos.ZERO)
             return this.entity.create(level);
-        return this.entity.create((ServerLevel) level, null, null, null, pos, SpawnReason.SPAWNER, false, false);
+        return this.entity.create((ServerLevel) level, null, null, null, pos, MobSpawnType.SPAWNER, false, false);
     }
 
     @Override
-    public ItemStack getRecipeOutput() {
+    public ItemStack getResultItem() {
         return ItemStack.EMPTY;
     }
 
     @Override
-    public IRecipeSerializer<?> getSerializer() {
+    public RecipeSerializer<?> getSerializer() {
         return ModRecipes.ANIMAL_SPAWNER_SERIALIZER;
     }
 
     @Override
-    public IRecipeType<?> getType() {
+    public RecipeType<?> getType() {
         return ModRecipes.ANIMAL_SPAWNER_TYPE;
     }
 
-    public static class Serializer extends ForgeRegistryEntry<IRecipeSerializer<?>> implements IRecipeSerializer<AnimalSpawnerRecipe> {
+    public static class Serializer extends ForgeRegistryEntry<RecipeSerializer<?>> implements RecipeSerializer<AnimalSpawnerRecipe> {
+
         @Override
-        public AnimalSpawnerRecipe read(ResourceLocation recipeId, JsonObject json) {
+        public AnimalSpawnerRecipe fromJson(ResourceLocation recipeId, JsonObject json) {
             List<Ingredient> ingredients = new ArrayList<>();
             for (JsonElement e : json.getAsJsonArray("ingredients"))
-                ingredients.add(Ingredient.deserialize(e));
+                ingredients.add(Ingredient.fromJson(e));
             return new AnimalSpawnerRecipe(recipeId,
                     ForgeRegistries.ENTITIES.getValue(new ResourceLocation(json.get("entity").getAsString())),
                     json.get("aura").getAsInt(),
@@ -73,10 +77,10 @@ public class AnimalSpawnerRecipe extends ModRecipe {
 
         @Nullable
         @Override
-        public AnimalSpawnerRecipe read(ResourceLocation recipeId, PacketBuffer buffer) {
+        public AnimalSpawnerRecipe fromNetwork(ResourceLocation recipeId, FriendlyByteBuf buffer) {
             Ingredient[] ings = new Ingredient[buffer.readInt()];
             for (int i = 0; i < ings.length; i++)
-                ings[i] = Ingredient.read(buffer);
+                ings[i] = Ingredient.fromNetwork(buffer);
             return new AnimalSpawnerRecipe(
                     recipeId,
                     ForgeRegistries.ENTITIES.getValue(buffer.readResourceLocation()),
@@ -86,10 +90,10 @@ public class AnimalSpawnerRecipe extends ModRecipe {
         }
 
         @Override
-        public void write(PacketBuffer buffer, AnimalSpawnerRecipe recipe) {
+        public void toNetwork(FriendlyByteBuf buffer, AnimalSpawnerRecipe recipe) {
             buffer.writeInt(recipe.ingredients.length);
             for (Ingredient ing : recipe.ingredients)
-                ing.write(buffer);
+                ing.toNetwork(buffer);
             buffer.writeResourceLocation(recipe.entity.getRegistryName());
             buffer.writeInt(recipe.aura);
             buffer.writeInt(recipe.time);

src/main/java/de/ellpeck/naturesaura/recipes/ModRecipe.java

@@ -1,12 +1,12 @@
 package de.ellpeck.naturesaura.recipes;
 
-import net.minecraft.item.ItemStack;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.item.crafting.IRecipe;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.item.crafting.Recipe;
-import net.minecraft.level.Level;
+import net.minecraft.world.level.Level;
 import net.minecraftforge.items.wrapper.RecipeWrapper;
 
-public abstract class ModRecipe implements IRecipe<RecipeWrapper> {
+public abstract class ModRecipe implements Recipe<RecipeWrapper> {
 
     public final ResourceLocation name;
 
@@ -21,12 +21,12 @@ public abstract class ModRecipe implements IRecipe<RecipeWrapper> {
     }
 
     @Override
-    public ItemStack getCraftingResult(RecipeWrapper inv) {
+    public ItemStack assemble(RecipeWrapper inv) {
         return ItemStack.EMPTY;
     }
 
     @Override
-    public boolean canFit(int width, int height) {
+    public boolean canCraftInDimensions(int width, int height) {
         return false;
     }
 
@@ -34,4 +34,5 @@ public abstract class ModRecipe implements IRecipe<RecipeWrapper> {
     public ResourceLocation getId() {
         return this.name;
     }
+
 }

src/main/java/de/ellpeck/naturesaura/recipes/ModRecipes.java

@@ -7,37 +7,36 @@ import de.ellpeck.naturesaura.NaturesAura;
 import de.ellpeck.naturesaura.api.NaturesAuraAPI;
 import de.ellpeck.naturesaura.api.misc.WeatherType;
 import de.ellpeck.naturesaura.api.misc.WeightedOre;
-import net.minecraft.block.Blocks;
+import net.minecraft.core.Registry;
-import net.minecraft.entity.EntityType;
-import net.minecraft.item.ItemStack;
-import net.minecraft.item.Items;
-import net.minecraft.item.crafting.IRecipe;
-import net.minecraft.item.crafting.IRecipeSerializer;
-import net.minecraft.item.crafting.IRecipeType;
 import net.minecraft.nbt.CompoundTag;
-import net.minecraft.nbt.INBT;
+import net.minecraft.nbt.NbtOps;
-import net.minecraft.nbt.NBTDynamicOps;
+import net.minecraft.nbt.Tag;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.util.registry.Registry;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.Items;
+import net.minecraft.world.item.crafting.Recipe;
+import net.minecraft.world.item.crafting.RecipeSerializer;
+import net.minecraft.world.level.block.Blocks;
 import net.minecraftforge.registries.IForgeRegistry;
 
 import java.util.List;
 
 public final class ModRecipes {
 
-    public static final IRecipeType<AltarRecipe> ALTAR_TYPE = new RecipeType<>();
+    public static final RecipeType<AltarRecipe> ALTAR_TYPE = new RecipeType<>();
-    public static final IRecipeSerializer<AltarRecipe> ALTAR_SERIAIZER = new AltarRecipe.Serializer();
+    public static final RecipeSerializer<AltarRecipe> ALTAR_SERIAIZER = new AltarRecipe.Serializer();
 
-    public static final IRecipeType<AnimalSpawnerRecipe> ANIMAL_SPAWNER_TYPE = new RecipeType<>();
+    public static final RecipeType<AnimalSpawnerRecipe> ANIMAL_SPAWNER_TYPE = new RecipeType<>();
-    public static final IRecipeSerializer<AnimalSpawnerRecipe> ANIMAL_SPAWNER_SERIALIZER = new AnimalSpawnerRecipe.Serializer();
+    public static final RecipeSerializer<AnimalSpawnerRecipe> ANIMAL_SPAWNER_SERIALIZER = new AnimalSpawnerRecipe.Serializer();
 
-    public static final IRecipeType<OfferingRecipe> OFFERING_TYPE = new RecipeType<>();
+    public static final RecipeType<OfferingRecipe> OFFERING_TYPE = new RecipeType<>();
-    public static final IRecipeSerializer<OfferingRecipe> OFFERING_SERIALIZER = new OfferingRecipe.Serializer();
+    public static final RecipeSerializer<OfferingRecipe> OFFERING_SERIALIZER = new OfferingRecipe.Serializer();
 
-    public static final IRecipeType<TreeRitualRecipe> TREE_RITUAL_TYPE = new RecipeType<>();
+    public static final RecipeType<TreeRitualRecipe> TREE_RITUAL_TYPE = new RecipeType<>();
-    public static final IRecipeSerializer<TreeRitualRecipe> TREE_RITUAL_SERIALIZER = new TreeRitualRecipe.Serializer();
+    public static final RecipeSerializer<TreeRitualRecipe> TREE_RITUAL_SERIALIZER = new TreeRitualRecipe.Serializer();
 
-    public static void register(IForgeRegistry<IRecipeSerializer<?>> registry) {
+    public static void register(IForgeRegistry<RecipeSerializer<?>> registry) {
         register(registry, "altar", ALTAR_TYPE, ALTAR_SERIAIZER);
         register(registry, "animal_spawner", ANIMAL_SPAWNER_TYPE, ANIMAL_SPAWNER_SERIALIZER);
         register(registry, "offering", OFFERING_TYPE, OFFERING_SERIALIZER);
@@ -46,17 +45,17 @@ public final class ModRecipes {
 
     public static void init() {
         NaturesAuraAPI.BOTANIST_PICKAXE_CONVERSIONS.put(
-                Blocks.COBBLESTONE.getDefaultState(),
+                Blocks.COBBLESTONE.defaultBlockState(),
-                Blocks.MOSSY_COBBLESTONE.getDefaultState());
+                Blocks.MOSSY_COBBLESTONE.defaultBlockState());
         NaturesAuraAPI.BOTANIST_PICKAXE_CONVERSIONS.put(
-                Blocks.STONE_BRICKS.getDefaultState(),
+                Blocks.STONE_BRICKS.defaultBlockState(),
-                Blocks.MOSSY_STONE_BRICKS.getDefaultState());
+                Blocks.MOSSY_STONE_BRICKS.defaultBlockState());
         NaturesAuraAPI.BOTANIST_PICKAXE_CONVERSIONS.put(
-                Blocks.COBBLESTONE_WALL.getDefaultState(),
+                Blocks.COBBLESTONE_WALL.defaultBlockState(),
-                Blocks.MOSSY_COBBLESTONE_WALL.getDefaultState());
+                Blocks.MOSSY_COBBLESTONE_WALL.defaultBlockState());
         NaturesAuraAPI.BOTANIST_PICKAXE_CONVERSIONS.put(
-                Blocks.STONE_BRICK_WALL.getDefaultState(),
+                Blocks.STONE_BRICK_WALL.defaultBlockState(),
-                Blocks.MOSSY_STONE_BRICK_WALL.getDefaultState());
+                Blocks.MOSSY_STONE_BRICK_WALL.defaultBlockState());
 
         ore(NaturesAuraAPI.OVERWORLD_ORES, "ores/coal", 5000);
         ore(NaturesAuraAPI.NETHER_ORES, "ores/nether/coal", 5000);
@@ -131,14 +130,14 @@ public final class ModRecipes {
         list.add(new WeightedOre(res, weight));
     }
 
-    private static void register(IForgeRegistry<IRecipeSerializer<?>> registry, String name, IRecipeType<?> type, IRecipeSerializer<?> serializer) {
+    private static void register(IForgeRegistry<RecipeSerializer<?>> registry, String name, RecipeType<?> type, RecipeSerializer<?> serializer) {
         ResourceLocation res = new ResourceLocation(NaturesAura.MOD_ID, name);
         Registry.register(Registry.RECIPE_TYPE, res, type);
         registry.register(serializer.setRegistryName(res));
     }
 
     public static JsonObject serializeStack(ItemStack stack) {
-        CompoundTag nbt = stack.write(new CompoundTag());
+        CompoundTag nbt = stack.save(new CompoundTag());
         byte c = nbt.getByte("Count");
         if (c != 1) {
             nbt.putByte("count", c);
@@ -146,19 +145,20 @@ public final class ModRecipes {
         nbt.remove("Count");
         renameTag(nbt, "id", "item");
         renameTag(nbt, "tag", "nbt");
-        Dynamic<INBT> dyn = new Dynamic<>(NBTDynamicOps.INSTANCE, nbt);
+        Dynamic<Tag> dyn = new Dynamic<>(NbtOps.INSTANCE, nbt);
         return dyn.convert(JsonOps.INSTANCE).getValue().getAsJsonObject();
     }
 
     private static void renameTag(CompoundTag nbt, String oldName, String newName) {
-        INBT tag = nbt.get(oldName);
+        Tag tag = nbt.get(oldName);
         if (tag != null) {
             nbt.remove(oldName);
             nbt.put(newName, tag);
         }
     }
 
-    private static class RecipeType<T extends IRecipe<?>> implements IRecipeType<T> {
+    private static class RecipeType<T extends Recipe<?>> implements net.minecraft.world.item.crafting.RecipeType<T> {
+
         @Override
         public String toString() {
             return Registry.RECIPE_TYPE.getKey(this).toString();

src/main/java/de/ellpeck/naturesaura/recipes/OfferingRecipe.java

@@ -1,12 +1,12 @@
 package de.ellpeck.naturesaura.recipes;
 
 import com.google.gson.JsonObject;
-import net.minecraft.item.ItemStack;
+import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.item.crafting.IRecipeSerializer;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.item.crafting.IRecipeType;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.item.crafting.Ingredient;
+import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.network.PacketBuffer;
+import net.minecraft.world.item.crafting.RecipeSerializer;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.item.crafting.RecipeType;
 import net.minecraftforge.common.crafting.CraftingHelper;
 import net.minecraftforge.registries.ForgeRegistryEntry;
 
@@ -26,45 +26,46 @@ public class OfferingRecipe extends ModRecipe {
     }
 
     @Override
-    public ItemStack getRecipeOutput() {
+    public ItemStack getResultItem() {
         return this.output;
     }
 
     @Override
-    public IRecipeSerializer<?> getSerializer() {
+    public RecipeSerializer<?> getSerializer() {
         return ModRecipes.OFFERING_SERIALIZER;
     }
 
     @Override
-    public IRecipeType<?> getType() {
+    public RecipeType<?> getType() {
         return ModRecipes.OFFERING_TYPE;
     }
 
-    public static class Serializer extends ForgeRegistryEntry<IRecipeSerializer<?>> implements IRecipeSerializer<OfferingRecipe> {
+    public static class Serializer extends ForgeRegistryEntry<RecipeSerializer<?>> implements RecipeSerializer<OfferingRecipe> {
+
         @Override
-        public OfferingRecipe read(ResourceLocation recipeId, JsonObject json) {
+        public OfferingRecipe fromJson(ResourceLocation recipeId, JsonObject json) {
             return new OfferingRecipe(
                     recipeId,
-                    Ingredient.deserialize(json.get("input")),
+                    Ingredient.fromJson(json.get("input")),
-                    Ingredient.deserialize(json.get("start_item")),
+                    Ingredient.fromJson(json.get("start_item")),
                     CraftingHelper.getItemStack(json.getAsJsonObject("output"), true));
         }
 
         @Nullable
         @Override
-        public OfferingRecipe read(ResourceLocation recipeId, PacketBuffer buffer) {
+        public OfferingRecipe fromNetwork(ResourceLocation recipeId, FriendlyByteBuf buffer) {
             return new OfferingRecipe(
                     recipeId,
-                    Ingredient.read(buffer),
+                    Ingredient.fromNetwork(buffer),
-                    Ingredient.read(buffer),
+                    Ingredient.fromNetwork(buffer),
-                    buffer.readItemStack());
+                    buffer.readItem());
         }
 
         @Override
-        public void write(PacketBuffer buffer, OfferingRecipe recipe) {
+        public void toNetwork(FriendlyByteBuf buffer, OfferingRecipe recipe) {
-            recipe.input.write(buffer);
+            recipe.input.toNetwork(buffer);
-            recipe.startItem.write(buffer);
+            recipe.startItem.toNetwork(buffer);
-            buffer.writeItemStack(recipe.output);
+            buffer.writeItem(recipe.output);
         }
     }
 }

src/main/java/de/ellpeck/naturesaura/recipes/TreeRitualRecipe.java

@@ -2,12 +2,12 @@ package de.ellpeck.naturesaura.recipes;
 
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
-import net.minecraft.item.ItemStack;
+import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.item.crafting.IRecipeSerializer;
+import net.minecraft.resources.ResourceLocation;
-import net.minecraft.item.crafting.IRecipeType;
+import net.minecraft.world.item.ItemStack;
-import net.minecraft.item.crafting.Ingredient;
+import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.network.PacketBuffer;
+import net.minecraft.world.item.crafting.RecipeSerializer;
-import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.item.crafting.RecipeType;
 import net.minecraftforge.common.crafting.CraftingHelper;
 import net.minecraftforge.registries.ForgeRegistryEntry;
 
@@ -31,29 +31,30 @@ public class TreeRitualRecipe extends ModRecipe {
     }
 
     @Override
-    public ItemStack getRecipeOutput() {
+    public ItemStack getResultItem() {
         return this.result;
     }
 
     @Override
-    public IRecipeSerializer<?> getSerializer() {
+    public RecipeSerializer<?> getSerializer() {
         return ModRecipes.TREE_RITUAL_SERIALIZER;
     }
 
     @Override
-    public IRecipeType<?> getType() {
+    public RecipeType<?> getType() {
         return ModRecipes.TREE_RITUAL_TYPE;
     }
 
-    public static class Serializer extends ForgeRegistryEntry<IRecipeSerializer<?>> implements IRecipeSerializer<TreeRitualRecipe> {
+    public static class Serializer extends ForgeRegistryEntry<RecipeSerializer<?>> implements RecipeSerializer<TreeRitualRecipe> {
+
         @Override
-        public TreeRitualRecipe read(ResourceLocation recipeId, JsonObject json) {
+        public TreeRitualRecipe fromJson(ResourceLocation recipeId, JsonObject json) {
             List<Ingredient> ings = new ArrayList<>();
             for (JsonElement element : json.getAsJsonArray("ingredients"))
-                ings.add(Ingredient.deserialize(element));
+                ings.add(Ingredient.fromJson(element));
             return new TreeRitualRecipe(
                     recipeId,
-                    Ingredient.deserialize(json.getAsJsonObject("sapling")),
+                    Ingredient.fromJson(json.getAsJsonObject("sapling")),
                     CraftingHelper.getItemStack(json.getAsJsonObject("output"), true),
                     json.get("time").getAsInt(),
                     ings.toArray(new Ingredient[0]));
@@ -61,25 +62,25 @@ public class TreeRitualRecipe extends ModRecipe {
 
         @Nullable
         @Override
-        public TreeRitualRecipe read(ResourceLocation recipeId, PacketBuffer buffer) {
+        public TreeRitualRecipe fromNetwork(ResourceLocation recipeId, FriendlyByteBuf buffer) {
             Ingredient[] ings = new Ingredient[buffer.readInt()];
             for (int i = 0; i < ings.length; i++)
-                ings[i] = Ingredient.read(buffer);
+                ings[i] = Ingredient.fromNetwork(buffer);
             return new TreeRitualRecipe(
                     recipeId,
-                    Ingredient.read(buffer),
+                    Ingredient.fromNetwork(buffer),
-                    buffer.readItemStack(),
+                    buffer.readItem(),
                     buffer.readInt(),
                     ings);
         }
 
         @Override
-        public void write(PacketBuffer buffer, TreeRitualRecipe recipe) {
+        public void toNetwork(FriendlyByteBuf buffer, TreeRitualRecipe recipe) {
             buffer.writeInt(recipe.ingredients.length);
             for (Ingredient ing : recipe.ingredients)
-                ing.write(buffer);
+                ing.toNetwork(buffer);
-            recipe.saplingType.write(buffer);
+            recipe.saplingType.toNetwork(buffer);
-            buffer.writeItemStack(recipe.result);
+            buffer.writeItem(recipe.result);
             buffer.writeInt(recipe.time);
         }
     }

src/main/java/de/ellpeck/naturesaura/reg/IColorProvidingItem.java

@@ -1,12 +1,12 @@
 package de.ellpeck.naturesaura.reg;
 
-import net.minecraft.client.renderer.color.IItemColor;
+import net.minecraft.client.color.item.ItemColor;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 
 public interface IColorProvidingItem {
 
     @OnlyIn(Dist.CLIENT)
-    IItemColor getItemColor();
+    ItemColor getItemColor();
 
 }

src/main/java/de/ellpeck/naturesaura/reg/ModItemTier.java

@@ -1,22 +1,22 @@
 package de.ellpeck.naturesaura.reg;
 
 import de.ellpeck.naturesaura.items.ModItems;
-import net.minecraft.item.IItemTier;
+import net.minecraft.world.item.Tier;
-import net.minecraft.item.crafting.Ingredient;
+import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.util.LazyValue;
+import net.minecraftforge.common.util.Lazy;
 
 import java.util.function.Supplier;
 
-public enum ModItemTier implements IItemTier {
+public enum ModItemTier implements Tier {
-    INFUSED(2, 250, 6, 2, 16, () -> Ingredient.fromItems(ModItems.INFUSED_IRON)),
+    INFUSED(2, 250, 6, 2, 16, () -> Ingredient.of(ModItems.INFUSED_IRON)),
-    SKY(3, 1500, 8, 3, 12, () -> Ingredient.fromItems(ModItems.SKY_INGOT));
+    SKY(3, 1500, 8, 3, 12, () -> Ingredient.of(ModItems.SKY_INGOT));
 
     private final int harvestLevel;
     private final int maxUses;
     private final float efficiency;
     private final float attackDamage;
     private final int enchantability;
-    private final LazyValue<Ingredient> repairMaterial;
+    private final Lazy<Ingredient> repairMaterial;
 
     ModItemTier(int harvestLevelIn, int maxUsesIn, float efficiencyIn, float attackDamageIn, int enchantabilityIn, Supplier<Ingredient> repairMaterialIn) {
         this.harvestLevel = harvestLevelIn;
@@ -24,36 +24,36 @@ public enum ModItemTier implements IItemTier {
         this.efficiency = efficiencyIn;
         this.attackDamage = attackDamageIn;
         this.enchantability = enchantabilityIn;
-        this.repairMaterial = new LazyValue<>(repairMaterialIn);
+        this.repairMaterial = Lazy.of(repairMaterialIn);
     }
 
     @Override
-    public int getMaxUses() {
+    public int getUses() {
         return this.maxUses;
     }
 
     @Override
-    public float getEfficiency() {
+    public float getSpeed() {
         return this.efficiency;
     }
 
     @Override
-    public float getAttackDamage() {
+    public float getAttackDamageBonus() {
         return this.attackDamage;
     }
 
     @Override
-    public int getHarvestLevel() {
+    public int getLevel() {
         return this.harvestLevel;
     }
 
     @Override
-    public int getEnchantability() {
+    public int getEnchantmentValue() {
         return this.enchantability;
     }
 
     @Override
-    public Ingredient getRepairMaterial() {
+    public Ingredient getRepairIngredient() {
-        return this.repairMaterial.getValue();
+        return this.repairMaterial.get();
     }
 }

src/main/java/de/ellpeck/naturesaura/reg/ModRegistry.java

@@ -4,19 +4,19 @@ import de.ellpeck.naturesaura.Helper;
 import de.ellpeck.naturesaura.NaturesAura;
 import de.ellpeck.naturesaura.api.misc.ILevelData;
 import de.ellpeck.naturesaura.blocks.*;
-import de.ellpeck.naturesaura.blocks.tiles.ModTileEntities;
 import de.ellpeck.naturesaura.blocks.tiles.BlockEntityAuraBloom;
 import de.ellpeck.naturesaura.blocks.tiles.BlockEntityEnderCrate;
+import de.ellpeck.naturesaura.blocks.tiles.ModTileEntities;
 import de.ellpeck.naturesaura.enchant.AuraMendingEnchantment;
 import de.ellpeck.naturesaura.enchant.ModEnchantments;
 import de.ellpeck.naturesaura.entities.*;
 import de.ellpeck.naturesaura.entities.render.RenderEffectInhibitor;
 import de.ellpeck.naturesaura.entities.render.RenderMoverMinecart;
 import de.ellpeck.naturesaura.entities.render.RenderStub;
-import de.ellpeck.naturesaura.gen.ModFeatures;
 import de.ellpeck.naturesaura.gen.LevelGenAncientTree;
 import de.ellpeck.naturesaura.gen.LevelGenAuraBloom;
 import de.ellpeck.naturesaura.gen.LevelGenNetherWartMushroom;
+import de.ellpeck.naturesaura.gen.ModFeatures;
 import de.ellpeck.naturesaura.gui.ContainerEnderCrate;
 import de.ellpeck.naturesaura.gui.ModContainers;
 import de.ellpeck.naturesaura.items.*;
@@ -25,7 +25,6 @@ import de.ellpeck.naturesaura.potion.ModPotions;
 import de.ellpeck.naturesaura.potion.PotionBreathless;
 import de.ellpeck.naturesaura.recipes.EnabledCondition;
 import de.ellpeck.naturesaura.recipes.ModRecipes;
-import net.minecraft.block.Block;
 import net.minecraft.block.Blocks;
 import net.minecraft.block.FlowerPotBlock;
 import net.minecraft.block.SoundType;
@@ -38,21 +37,24 @@ import net.minecraft.enchantment.Enchantment;
 import net.minecraft.entity.EntityClassification;
 import net.minecraft.entity.EntityType;
 import net.minecraft.inventory.EquipmentSlotType;
-import net.minecraft.inventory.container.ContainerType;
-import net.minecraft.item.BlockItem;
-import net.minecraft.item.Item;
 import net.minecraft.item.crafting.IRecipeSerializer;
-import net.minecraft.potion.Effect;
-import net.minecraft.tileentity.BlockEntity;
-import net.minecraft.tileentity.BlockEntityType;
-import net.minecraft.util.ResourceLocation;
-import net.minecraft.util.registry.Registry;
-import net.minecraft.util.registry.LevelGenRegistries;
 import net.minecraft.level.Level;
 import net.minecraft.level.gen.feature.Feature;
 import net.minecraft.level.gen.feature.structure.Structure;
+import net.minecraft.tileentity.BlockEntityType;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.registry.LevelGenRegistries;
+import net.minecraft.util.registry.Registry;
+import net.minecraft.world.effect.MobEffect;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.item.BlockItem;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.enchantment.Enchantment;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraftforge.common.crafting.CraftingHelper;
 import net.minecraftforge.common.extensions.IForgeContainerType;
+import net.minecraftforge.common.extensions.IForgeMenuType;
 import net.minecraftforge.event.RegistryEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.client.registry.IRenderFactory;
@@ -158,7 +160,7 @@ public final class ModRegistry {
     public static void registerItems(RegistryEvent.Register<Item> event) {
         for (IModItem block : ALL_ITEMS) {
             if (block instanceof Block && !(block instanceof INoItemBlock)) {
-                BlockItem item = new BlockItem((Block) block, new Item.Properties().group(NaturesAura.CREATIVE_TAB));
+                BlockItem item = new BlockItem((Block) block, new Item.Properties().tab(NaturesAura.CREATIVE_TAB));
                 item.setRegistryName(block.getBaseName());
                 event.getRegistry().register(item);
             }
@@ -243,7 +245,7 @@ public final class ModRegistry {
     }
 
     @SubscribeEvent
-    public static void registerPotions(RegistryEvent.Register<Effect> event) {
+    public static void registerPotions(RegistryEvent.Register<MobEffect> event) {
         event.getRegistry().registerAll(
                 new PotionBreathless()
         );
@@ -251,16 +253,16 @@ public final class ModRegistry {
     }
 
     @SubscribeEvent
-    public static void registerContainers(RegistryEvent.Register<ContainerType<?>> event) {
+    public static void registerContainers(RegistryEvent.Register<MenuType<?>> event) {
         event.getRegistry().registerAll(
-                IForgeContainerType.create((windowId, inv, data) -> {
+                IForgeMenuType.create((windowId, inv, data) -> {
                     BlockEntity tile = inv.player.level.getBlockEntity(data.readBlockPos());
-                    if (tile instanceof BlockEntityEnderCrate)
+                    if (tile instanceof BlockEntityEnderCrate crate)
-                        return new ContainerEnderCrate(ModContainers.ENDER_CRATE, windowId, inv.player, ((BlockEntityEnderCrate) tile).getItemHandler());
+                        return new ContainerEnderCrate(ModContainers.ENDER_CRATE, windowId, inv.player, crate.getItemHandler());
                     return null;
                 }).setRegistryName("ender_crate"),
-                IForgeContainerType.create((windowId, inv, data) -> {
+                IForgeMenuType.create((windowId, inv, data) -> {
-                    IItemHandler handler = ILevelData.getOverworldData(inv.player.level).getEnderStorage(data.readString());
+                    IItemHandler handler = ILevelData.getOverworldData(inv.player.level).getEnderStorage(data.readUtf());
                     return new ContainerEnderCrate(ModContainers.ENDER_ACCESS, windowId, inv.player, handler);
                 }).setRegistryName("ender_access")
         );