90 lines
3.8 KiB
Java
90 lines
3.8 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2024 ViaVersion and contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package com.viaversion.viaversion.api.type.types.item;
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import com.google.common.base.Preconditions;
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import com.viaversion.viaversion.api.data.FullMappings;
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import com.viaversion.viaversion.api.minecraft.data.StructuredData;
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import com.viaversion.viaversion.api.minecraft.data.StructuredDataKey;
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import com.viaversion.viaversion.api.protocol.Protocol;
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import com.viaversion.viaversion.api.type.Type;
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import io.netty.buffer.ByteBuf;
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import org.checkerframework.checker.nullness.qual.Nullable;
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public class StructuredDataType extends Type<StructuredData<?>> {
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private StructuredDataKey<?>[] types;
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public StructuredDataType() {
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super(StructuredData.class);
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}
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@Override
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public void write(final ByteBuf buffer, final StructuredData<?> object) throws Exception {
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Type.VAR_INT.writePrimitive(buffer, object.id());
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object.write(buffer);
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}
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@Override
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public StructuredData<?> read(final ByteBuf buffer) throws Exception {
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Preconditions.checkNotNull(types, "StructuredDataType has not been initialized");
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final int id = Type.VAR_INT.readPrimitive(buffer);
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final StructuredDataKey<?> key = this.types[id];
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if (key == null) {
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throw new IllegalArgumentException("No data component serializer found for id " + id);
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}
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return readData(buffer, key, id);
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}
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public @Nullable StructuredDataKey<?> key(final int id) {
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return id >= 0 && id < types.length ? types[id] : null;
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}
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private <T> StructuredData<T> readData(final ByteBuf buffer, final StructuredDataKey<T> key, final int id) throws Exception {
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return StructuredData.of(key, key.type().read(buffer), id);
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}
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public DataFiller filler(final Protocol<?, ?, ?, ?> protocol) {
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return new DataFiller(protocol);
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}
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public final class DataFiller {
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private final FullMappings mappings;
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private DataFiller(final Protocol<?, ?, ?, ?> protocol) {
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this.mappings = protocol.getMappingData().getDataComponentSerializerMappings();
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Preconditions.checkArgument(mappings != null, "No mappings found for protocol %s", protocol.getClass());
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Preconditions.checkArgument(types == null, "StructuredDataType has already been initialized");
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types = new StructuredDataKey[mappings.mappedSize()];
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}
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public DataFiller add(final StructuredDataKey<?> reader) {
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final int id = mappings.mappedId(reader.identifier());
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Preconditions.checkArgument(id != -1, "No mapped id found for %s", reader.identifier());
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types[id] = reader;
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return this;
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}
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}
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}
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