112 lines
4.4 KiB
Java
112 lines
4.4 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.viaversion.viaversion.api.minecraft.item.Item;
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import com.viaversion.viaversion.api.minecraft.data.StructuredData;
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import com.viaversion.viaversion.api.minecraft.item.StructuredItem;
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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 it.unimi.dsi.fastutil.ints.Int2ObjectMap;
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import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
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import java.util.Optional;
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import org.checkerframework.checker.nullness.qual.Nullable;
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public class ItemType1_20_5 extends Type<Item> {
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private final Type<StructuredData<?>> dataType;
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public ItemType1_20_5(final Type<StructuredData<?>> itemDataType) {
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super(Item.class);
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this.dataType = itemDataType;
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}
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@Override
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public @Nullable Item read(final ByteBuf buffer) throws Exception {
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final byte amount = buffer.readByte();
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if (amount <= 0) {
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return null;
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}
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final int id = Type.VAR_INT.readPrimitive(buffer);
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final Int2ObjectMap<Optional<StructuredData<?>>> data = readData(buffer);
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return new StructuredItem(id, amount, data);
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}
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private Int2ObjectMap<Optional<StructuredData<?>>> readData(final ByteBuf buffer) throws Exception {
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final int valuesSize = Type.VAR_INT.readPrimitive(buffer);
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final int markersSize = Type.VAR_INT.readPrimitive(buffer);
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if (valuesSize == 0 && markersSize == 0) {
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return new Int2ObjectOpenHashMap<>();
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}
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final Int2ObjectMap<Optional<StructuredData<?>>> map = new Int2ObjectOpenHashMap<>(valuesSize + markersSize);
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for (int i = 0; i < valuesSize; i++) {
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final StructuredData<?> value = dataType.read(buffer);
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map.put(value.id(), Optional.of(value));
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}
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for (int i = 0; i < markersSize; i++) {
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final int key = Type.VAR_INT.readPrimitive(buffer);
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map.put(key, Optional.empty());
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}
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return map;
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}
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@Override
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public void write(final ByteBuf buffer, @Nullable final Item object) throws Exception {
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if (object == null) {
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buffer.writeByte(0);
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return;
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}
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buffer.writeByte(object.amount());
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Type.VAR_INT.writePrimitive(buffer, object.identifier());
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final Int2ObjectMap<Optional<StructuredData<?>>> data = object.structuredData();
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int valuesSize = 0;
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int markersSize = 0;
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for (final Int2ObjectMap.Entry<Optional<StructuredData<?>>> entry : data.int2ObjectEntrySet()) {
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if (entry.getValue().isPresent()) {
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valuesSize++;
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} else {
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markersSize++;
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}
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}
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Type.VAR_INT.writePrimitive(buffer, valuesSize);
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Type.VAR_INT.writePrimitive(buffer, markersSize);
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for (final Int2ObjectMap.Entry<Optional<StructuredData<?>>> entry : data.int2ObjectEntrySet()) {
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if (entry.getValue().isPresent()) {
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dataType.write(buffer, entry.getValue().get());
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}
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}
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for (final Int2ObjectMap.Entry<Optional<StructuredData<?>>> entry : data.int2ObjectEntrySet()) {
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if (!entry.getValue().isPresent()) {
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Type.VAR_INT.writePrimitive(buffer, entry.getIntKey());
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}
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}
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}
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}
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