minecraft-src/net/minecraft/world/entity/animal/Salmon.java

package net.minecraft.world.entity.animal;

import net.minecraft.core.component.DataComponents;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.network.syncher.EntityDataAccessor;
import net.minecraft.network.syncher.EntityDataSerializers;
import net.minecraft.network.syncher.SynchedEntityData;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.util.StringRepresentable;
import net.minecraft.util.random.SimpleWeightedRandomList;
import net.minecraft.util.random.SimpleWeightedRandomList.Builder;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.EntityDimensions;
import net.minecraft.world.entity.EntitySpawnReason;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.Pose;
import net.minecraft.world.entity.SpawnGroupData;
import net.minecraft.world.entity.VariantHolder;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.Items;
import net.minecraft.world.item.component.CustomData;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.ServerLevelAccessor;
import org.jetbrains.annotations.Nullable;

public class Salmon extends AbstractSchoolingFish implements VariantHolder<Salmon.Variant> {
	private static final EntityDataAccessor<String> DATA_TYPE = SynchedEntityData.defineId(Salmon.class, EntityDataSerializers.STRING);

	public Salmon(EntityType<? extends Salmon> entityType, Level level) {
		super(entityType, level);
		this.refreshDimensions();
	}

	@Override
	public int getMaxSchoolSize() {
		return 5;
	}

	@Override
	public ItemStack getBucketItemStack() {
		return new ItemStack(Items.SALMON_BUCKET);
	}

	@Override
	protected SoundEvent getAmbientSound() {
		return SoundEvents.SALMON_AMBIENT;
	}

	@Override
	protected SoundEvent getDeathSound() {
		return SoundEvents.SALMON_DEATH;
	}

	@Override
	protected SoundEvent getHurtSound(DamageSource damageSource) {
		return SoundEvents.SALMON_HURT;
	}

	@Override
	protected SoundEvent getFlopSound() {
		return SoundEvents.SALMON_FLOP;
	}

	@Override
	protected void defineSynchedData(net.minecraft.network.syncher.SynchedEntityData.Builder builder) {
		super.defineSynchedData(builder);
		builder.define(DATA_TYPE, Salmon.Variant.MEDIUM.type);
	}

	@Override
	public void onSyncedDataUpdated(EntityDataAccessor<?> dataAccessor) {
		super.onSyncedDataUpdated(dataAccessor);
		if (DATA_TYPE.equals(dataAccessor)) {
			this.refreshDimensions();
		}
	}

	@Override
	public void addAdditionalSaveData(CompoundTag compound) {
		super.addAdditionalSaveData(compound);
		compound.putString("type", this.getVariant().getSerializedName());
	}

	@Override
	public void readAdditionalSaveData(CompoundTag compound) {
		super.readAdditionalSaveData(compound);
		this.setVariant(Salmon.Variant.byName(compound.getString("type")));
	}

	@Override
	public void saveToBucketTag(ItemStack stack) {
		Bucketable.saveDefaultDataToBucketTag(this, stack);
		CustomData.update(DataComponents.BUCKET_ENTITY_DATA, stack, compoundTag -> compoundTag.putString("type", this.getVariant().getSerializedName()));
	}

	@Override
	public void loadFromBucketTag(CompoundTag tag) {
		Bucketable.loadDefaultDataFromBucketTag(this, tag);
		this.setVariant(Salmon.Variant.byName(tag.getString("type")));
	}

	public void setVariant(Salmon.Variant variant) {
		this.entityData.set(DATA_TYPE, variant.type);
	}

	public Salmon.Variant getVariant() {
		return Salmon.Variant.byName(this.entityData.get(DATA_TYPE));
	}

	@Nullable
	@Override
	public SpawnGroupData finalizeSpawn(
		ServerLevelAccessor serverLevelAccessor, DifficultyInstance difficultyInstance, EntitySpawnReason entitySpawnReason, @Nullable SpawnGroupData spawnGroupData
	) {
		Builder<Salmon.Variant> builder = SimpleWeightedRandomList.builder();
		builder.add(Salmon.Variant.SMALL, 30);
		builder.add(Salmon.Variant.MEDIUM, 50);
		builder.add(Salmon.Variant.LARGE, 15);
		builder.build().getRandomValue(this.random).ifPresent(this::setVariant);
		return super.finalizeSpawn(serverLevelAccessor, difficultyInstance, entitySpawnReason, spawnGroupData);
	}

	public float getSalmonScale() {
		return this.getVariant().boundingBoxScale;
	}

	@Override
	protected EntityDimensions getDefaultDimensions(Pose pose) {
		return super.getDefaultDimensions(pose).scale(this.getSalmonScale());
	}

	public static enum Variant implements StringRepresentable {
		SMALL("small", 0.5F),
		MEDIUM("medium", 1.0F),
		LARGE("large", 1.5F);

		public static final StringRepresentable.EnumCodec<Salmon.Variant> CODEC = StringRepresentable.fromEnum(Salmon.Variant::values);
		final String type;
		final float boundingBoxScale;

		private Variant(final String string2, final float f) {
			this.type = string2;
			this.boundingBoxScale = f;
		}

		@Override
		public String getSerializedName() {
			return this.type;
		}

		static Salmon.Variant byName(String string) {
			return (Salmon.Variant)CODEC.byName(string, SMALL);
		}
	}
}