58 lines
2.3 KiB
Java
58 lines
2.3 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.misc;
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import com.viaversion.viaversion.api.minecraft.Holder;
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import com.viaversion.viaversion.api.type.Type;
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import io.netty.buffer.ByteBuf;
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public abstract class HolderType<T> extends Type<Holder<T>> {
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protected HolderType() {
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super(Holder.class);
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}
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@Override
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public Holder<T> read(final ByteBuf buffer) throws Exception {
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final int id = Type.VAR_INT.readPrimitive(buffer) - 1; // Normalize id
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if (id == -1) {
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return Holder.of(readDirect(buffer));
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}
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return Holder.of(id);
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}
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@Override
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public void write(final ByteBuf buffer, final Holder<T> object) throws Exception {
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if (object.hasId()) {
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Type.VAR_INT.writePrimitive(buffer, object.id() + 1); // Normalize id
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} else {
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Type.VAR_INT.writePrimitive(buffer, 0);
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writeDirect(buffer, object.value());
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}
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}
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public abstract T readDirect(final ByteBuf buffer) throws Exception;
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public abstract void writeDirect(final ByteBuf buffer, final T object) throws Exception;
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}
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