97 lines
3.6 KiB
Java
97 lines
3.6 KiB
Java
package net.minecraft.world.entity.animal;
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import net.minecraft.core.Holder;
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import net.minecraft.core.component.DataComponentGetter;
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import net.minecraft.core.component.DataComponentType;
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import net.minecraft.core.component.DataComponents;
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import net.minecraft.core.registries.Registries;
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import net.minecraft.network.syncher.EntityDataAccessor;
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import net.minecraft.network.syncher.EntityDataSerializers;
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import net.minecraft.network.syncher.SynchedEntityData;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.world.DifficultyInstance;
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import net.minecraft.world.entity.AgeableMob;
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import net.minecraft.world.entity.EntitySpawnReason;
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import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.entity.SpawnGroupData;
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import net.minecraft.world.entity.variant.SpawnContext;
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import net.minecraft.world.entity.variant.VariantUtils;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.ServerLevelAccessor;
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import net.minecraft.world.level.storage.ValueInput;
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import net.minecraft.world.level.storage.ValueOutput;
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import org.jetbrains.annotations.Nullable;
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public class Cow extends AbstractCow {
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private static final EntityDataAccessor<Holder<CowVariant>> DATA_VARIANT_ID = SynchedEntityData.defineId(Cow.class, EntityDataSerializers.COW_VARIANT);
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public Cow(EntityType<? extends Cow> entityType, Level level) {
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super(entityType, level);
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}
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@Override
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protected void defineSynchedData(SynchedEntityData.Builder builder) {
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super.defineSynchedData(builder);
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builder.define(DATA_VARIANT_ID, VariantUtils.getDefaultOrAny(this.registryAccess(), CowVariants.TEMPERATE));
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}
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@Override
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protected void addAdditionalSaveData(ValueOutput output) {
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super.addAdditionalSaveData(output);
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VariantUtils.writeVariant(output, this.getVariant());
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}
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@Override
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protected void readAdditionalSaveData(ValueInput input) {
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super.readAdditionalSaveData(input);
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VariantUtils.readVariant(input, Registries.COW_VARIANT).ifPresent(this::setVariant);
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}
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@Nullable
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public Cow getBreedOffspring(ServerLevel level, AgeableMob otherParent) {
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Cow cow = EntityType.COW.create(level, EntitySpawnReason.BREEDING);
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if (cow != null && otherParent instanceof Cow cow2) {
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cow.setVariant(this.random.nextBoolean() ? this.getVariant() : cow2.getVariant());
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}
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return cow;
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}
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@Override
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public SpawnGroupData finalizeSpawn(
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ServerLevelAccessor level, DifficultyInstance difficulty, EntitySpawnReason spawnReason, @Nullable SpawnGroupData spawnGroupData
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) {
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VariantUtils.selectVariantToSpawn(SpawnContext.create(level, this.blockPosition()), Registries.COW_VARIANT).ifPresent(this::setVariant);
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return super.finalizeSpawn(level, difficulty, spawnReason, spawnGroupData);
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}
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public void setVariant(Holder<CowVariant> variant) {
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this.entityData.set(DATA_VARIANT_ID, variant);
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}
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public Holder<CowVariant> getVariant() {
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return this.entityData.get(DATA_VARIANT_ID);
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}
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@Nullable
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@Override
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public <T> T get(DataComponentType<? extends T> component) {
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return component == DataComponents.COW_VARIANT ? castComponentValue((DataComponentType<T>)component, this.getVariant()) : super.get(component);
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}
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@Override
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protected void applyImplicitComponents(DataComponentGetter componentGetter) {
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this.applyImplicitComponentIfPresent(componentGetter, DataComponents.COW_VARIANT);
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super.applyImplicitComponents(componentGetter);
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}
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@Override
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protected <T> boolean applyImplicitComponent(DataComponentType<T> component, T value) {
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if (component == DataComponents.COW_VARIANT) {
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this.setVariant(castComponentValue(DataComponents.COW_VARIANT, value));
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return true;
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} else {
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return super.applyImplicitComponent(component, value);
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}
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}
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}
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