33 lines
1.2 KiB
Java
33 lines
1.2 KiB
Java
package net.minecraft.core;
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import java.util.Optional;
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import net.minecraft.core.Holder.Reference;
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import net.minecraft.core.HolderSet.Named;
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import net.minecraft.resources.ResourceKey;
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import net.minecraft.tags.TagKey;
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public interface HolderGetter<T> {
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Optional<Reference<T>> get(ResourceKey<T> resourceKey);
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default Reference<T> getOrThrow(ResourceKey<T> resourceKey) {
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return (Reference<T>)this.get(resourceKey).orElseThrow(() -> new IllegalStateException("Missing element " + resourceKey));
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}
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Optional<Named<T>> get(TagKey<T> tagKey);
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default Named<T> getOrThrow(TagKey<T> tagKey) {
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return (Named<T>)this.get(tagKey).orElseThrow(() -> new IllegalStateException("Missing tag " + tagKey));
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}
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public interface Provider {
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<T> Optional<? extends HolderGetter<T>> lookup(ResourceKey<? extends Registry<? extends T>> registryKey);
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default <T> HolderGetter<T> lookupOrThrow(ResourceKey<? extends Registry<? extends T>> registryKey) {
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return (HolderGetter<T>)this.lookup(registryKey).orElseThrow(() -> new IllegalStateException("Registry " + registryKey.location() + " not found"));
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}
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default <T> Optional<Reference<T>> get(ResourceKey<T> key) {
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return this.lookup(key.registryKey()).flatMap(holderGetter -> holderGetter.get(key));
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}
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}
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}
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