RegistryFixedCodec.java

net.minecraft.resources.RegistryFixedCodec

信息

• 全限定名：net.minecraft.resources.RegistryFixedCodec
• 类型：public final class
• 包：net.minecraft.resources
• 源码路径：src/main/java/net/minecraft/resources/RegistryFixedCodec.java
• 起始行号：L14
• 实现：Codec<Holder>
• 职责：

  TODO

字段/常量

• registryKey
  • 类型: ResourceKey<?extends Registry<E>>
  • 修饰符: private final
  • 源码定位: L15
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

private RegistryFixedCodec(ResourceKey<?extends Registry<E>> registryKey) @ L21

• 构造器名：RegistryFixedCodec
• 源码定位：L21
• 修饰符：private

参数:

• registryKey: ResourceKey<?extends Registry>

说明:

TODO

方法

下面的方法块按源码顺序生成。

public static <E> RegistryFixedCodec<E> create(ResourceKey<?extends Registry<E>> registryKey) @ L17

• 方法名：create
• 源码定位：L17
• 返回类型： RegistryFixedCodec
• 修饰符：public static

参数:

• registryKey: ResourceKey<?extends Registry>

说明:

TODO

public <T> DataResult<T> encode(Holder<E> input, DynamicOps<T> ops, T prefix) @ L25

• 方法名：encode
• 源码定位：L25
• 返回类型： DataResult
• 修饰符：public

参数:

• input: Holder
• ops: DynamicOps
• prefix: T

说明:

TODO

public <T> DataResult<Pair<Holder<E>,T>> decode(DynamicOps<T> ops, T input) @ L44

• 方法名：decode
• 源码定位：L44
• 返回类型： DataResult<Pair<Holder,T>>
• 修饰符：public

参数:

• ops: DynamicOps
• input: T

说明:

TODO

public String toString() @ L68

• 方法名：toString
• 源码定位：L68
• 返回类型：String
• 修饰符：public

参数:

• 无

说明:

TODO

代码

public final class RegistryFixedCodec<E> implements Codec<Holder<E>> {
    private final ResourceKey<? extends Registry<E>> registryKey;
 
    public static <E> RegistryFixedCodec<E> create(ResourceKey<? extends Registry<E>> registryKey) {
        return new RegistryFixedCodec<>(registryKey);
    }
 
    private RegistryFixedCodec(ResourceKey<? extends Registry<E>> registryKey) {
        this.registryKey = registryKey;
    }
 
    public <T> DataResult<T> encode(Holder<E> input, DynamicOps<T> ops, T prefix) {
        if (ops instanceof RegistryOps<?> registryOps) {
            Optional<HolderOwner<E>> maybeOwner = registryOps.owner(this.registryKey);
            if (maybeOwner.isPresent()) {
                if (!input.canSerializeIn(maybeOwner.get())) {
                    return DataResult.error(() -> "Element " + input + " is not valid in current registry set");
                }
 
                return input.unwrap()
                    .map(
                        id -> Identifier.CODEC.encode(id.identifier(), ops, prefix),
                        value -> DataResult.error(() -> "Elements from registry " + this.registryKey + " can't be serialized to a value")
                    );
            }
        }
 
        return DataResult.error(() -> "Can't access registry " + this.registryKey);
    }
 
    @Override
    public <T> DataResult<Pair<Holder<E>, T>> decode(DynamicOps<T> ops, T input) {
        if (ops instanceof RegistryOps<?> registryOps) {
            Optional<HolderGetter<E>> lookup = registryOps.getter(this.registryKey);
            if (lookup.isPresent()) {
                return Identifier.CODEC
                    .decode(ops, input)
                    .flatMap(
                        pair -> {
                            Identifier id = pair.getFirst();
                            return lookup.get()
                                .get(ResourceKey.create(this.registryKey, id))
                                .map(DataResult::success)
                                .orElseGet(() -> DataResult.error(() -> "Failed to get element " + id))
                                .<Pair<Holder<E>, T>>map(h -> Pair.of(h, (T)pair.getSecond()))
                                .setLifecycle(Lifecycle.stable());
                        }
                    );
            }
        }
 
        return DataResult.error(() -> "Can't access registry " + this.registryKey);
    }
 
    @Override
    public String toString() {
        return "RegistryFixedCodec[" + this.registryKey + "]";
    }
}

引用的其他类

• Holder

  • 引用位置: 参数/实现/返回值

• Registry

  • 引用位置: 参数/字段

• ResourceKey

  • 引用位置: 参数/字段/方法调用
  • 关联成员: ResourceKey.create()