Registries, Base blocks with entities

src/main/java/ru/bclib/blockentities/BaseBarrelBlockEntity.java

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+package ru.bclib.blockentities;
+
+import net.minecraft.core.NonNullList;
+import net.minecraft.core.Vec3i;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TranslatableComponent;
+import net.minecraft.sounds.SoundEvent;
+import net.minecraft.sounds.SoundEvents;
+import net.minecraft.sounds.SoundSource;
+import net.minecraft.world.ContainerHelper;
+import net.minecraft.world.entity.player.Inventory;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.ChestMenu;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.BarrelBlock;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraft.world.level.block.entity.ChestBlockEntity;
+import net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import ru.bclib.blocks.BaseBarrelBlock;
+import ru.bclib.registry.BaseBlockEntities;
+
+public class BaseBarrelBlockEntity extends RandomizableContainerBlockEntity {
+	private NonNullList<ItemStack> inventory;
+	private int viewerCount;
+
+	private BaseBarrelBlockEntity(BlockEntityType<?> type) {
+		super(type);
+		this.inventory = NonNullList.withSize(27, ItemStack.EMPTY);
+	}
+
+	public BaseBarrelBlockEntity() {
+		this(BaseBlockEntities.BARREL);
+	}
+
+	public CompoundTag save(CompoundTag tag) {
+		super.save(tag);
+		if (!this.trySaveLootTable(tag)) {
+			ContainerHelper.saveAllItems(tag, this.inventory);
+		}
+
+		return tag;
+	}
+
+	public void load(BlockState state, CompoundTag tag) {
+		super.load(state, tag);
+		this.inventory = NonNullList.withSize(this.getContainerSize(), ItemStack.EMPTY);
+		if (!this.tryLoadLootTable(tag)) {
+			ContainerHelper.loadAllItems(tag, this.inventory);
+		}
+	}
+
+	public int getContainerSize() {
+		return 27;
+	}
+
+	protected NonNullList<ItemStack> getItems() {
+		return this.inventory;
+	}
+
+	protected void setItems(NonNullList<ItemStack> list) {
+		this.inventory = list;
+	}
+
+	protected Component getDefaultName() {
+		return new TranslatableComponent("container.barrel");
+	}
+
+	protected AbstractContainerMenu createMenu(int syncId, Inventory playerInventory) {
+		return ChestMenu.threeRows(syncId, playerInventory, this);
+	}
+
+	public void startOpen(Player player) {
+		if (!player.isSpectator()) {
+			if (viewerCount < 0) {
+				viewerCount = 0;
+			}
+
+			++viewerCount;
+			BlockState blockState = this.getBlockState();
+			if (!blockState.getValue(BarrelBlock.OPEN)) {
+				playSound(blockState, SoundEvents.BARREL_OPEN);
+				setOpen(blockState, true);
+			}
+
+			if (level != null) {
+				scheduleUpdate();
+			}
+		}
+	}
+
+	@SuppressWarnings("ConstantConditions")
+	private void scheduleUpdate() {
+		level.getBlockTicks().scheduleTick(getBlockPos(), getBlockState().getBlock(), 5);
+	}
+
+	public void tick() {
+		if (level != null) {
+			int x = worldPosition.getX();
+			int y = worldPosition.getY();
+			int z = worldPosition.getZ();
+			viewerCount = ChestBlockEntity.getOpenCount(level, this, x, y, z);
+			if (viewerCount > 0) {
+				scheduleUpdate();
+			} else {
+				BlockState blockState = getBlockState();
+				if (!(blockState.getBlock() instanceof BaseBarrelBlock)) {
+					setRemoved();
+					return;
+				}
+				if (blockState.getValue(BarrelBlock.OPEN)) {
+					playSound(blockState, SoundEvents.BARREL_CLOSE);
+					setOpen(blockState, false);
+				}
+			}
+		}
+	}
+
+	public void stopOpen(Player player) {
+		if (!player.isSpectator()) {
+			--this.viewerCount;
+		}
+	}
+
+	private void setOpen(BlockState state, boolean open) {
+		if (level != null) {
+			level.setBlock(this.getBlockPos(), state.setValue(BarrelBlock.OPEN, open), 3);
+		}
+	}
+
+	private void playSound(BlockState blockState, SoundEvent soundEvent) {
+		if (level != null) {
+			Vec3i vec3i = blockState.getValue(BarrelBlock.FACING).getNormal();
+			double d = (double) this.worldPosition.getX() + 0.5D + (double) vec3i.getX() / 2.0D;
+			double e = (double) this.worldPosition.getY() + 0.5D + (double) vec3i.getY() / 2.0D;
+			double f = (double) this.worldPosition.getZ() + 0.5D + (double) vec3i.getZ() / 2.0D;
+			level.playSound(null, d, e, f, soundEvent, SoundSource.BLOCKS, 0.5F,
+					this.level.random.nextFloat() * 0.1F + 0.9F);
+		}
+	}
+}

src/main/java/ru/bclib/blockentities/BaseChestBlockEntity.java

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+package ru.bclib.blockentities;
+
+import net.minecraft.world.level.block.entity.ChestBlockEntity;
+import ru.bclib.registry.BaseBlockEntities;
+
+public class BaseChestBlockEntity extends ChestBlockEntity {
+	public BaseChestBlockEntity() {
+		super(BaseBlockEntities.CHEST);
+	}
+}

src/main/java/ru/bclib/blockentities/BaseFurnaceBlockEntity.java

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+package ru.bclib.blockentities;
+
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TranslatableComponent;
+import net.minecraft.world.entity.player.Inventory;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.FurnaceMenu;
+import net.minecraft.world.item.crafting.RecipeType;
+import net.minecraft.world.level.block.entity.AbstractFurnaceBlockEntity;
+import ru.bclib.registry.BaseBlockEntities;
+
+public class BaseFurnaceBlockEntity extends AbstractFurnaceBlockEntity {
+	public BaseFurnaceBlockEntity() {
+		super(BaseBlockEntities.FURNACE, RecipeType.SMELTING);
+	}
+
+	protected Component getDefaultName() {
+		return new TranslatableComponent("container.furnace");
+	}
+
+	protected AbstractContainerMenu createMenu(int syncId, Inventory playerInventory) {
+		return new FurnaceMenu(syncId, playerInventory, this, this.dataAccess);
+	}
+}

src/main/java/ru/bclib/blockentities/BaseSignBlockEntity.java

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+package ru.bclib.blockentities;
+
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraft.world.level.block.entity.SignBlockEntity;
+import ru.bclib.registry.BaseBlockEntities;
+
+public class BaseSignBlockEntity extends SignBlockEntity {
+	public BaseSignBlockEntity() {
+		super();
+	}
+
+	@Override
+	public BlockEntityType<?> getType() {
+		return BaseBlockEntities.SIGN;
+	}
+}