97 lines
3.6 KiB
Java
97 lines
3.6 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.data.FullMappings;
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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 com.viaversion.viaversion.util.IdHolder;
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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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public abstract class DynamicType<T extends IdHolder> extends Type<T> {
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protected final Int2ObjectMap<DataReader<T>> readers;
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protected DynamicType(final Int2ObjectMap<DataReader<T>> readers, final Class<T> outputClass) {
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super(outputClass.getSimpleName(), outputClass);
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this.readers = readers;
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}
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protected DynamicType(final Class<T> outputClass) {
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this(new Int2ObjectOpenHashMap<>(), outputClass);
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}
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public DataFiller filler(final Protocol<?, ?, ?, ?> protocol) {
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return filler(protocol, true);
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}
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public DataFiller filler(final Protocol<?, ?, ?, ?> protocol, final boolean useMappedNames) {
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return new DataFiller(protocol, useMappedNames);
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}
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protected void readData(final ByteBuf buffer, final T value) throws Exception {
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final DataReader<T> reader = readers.get(value.id());
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if (reader != null) {
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reader.read(buffer, value);
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}
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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 final boolean useMappedNames;
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private DataFiller(final Protocol<?, ?, ?, ?> protocol, final boolean useMappedNames) {
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this.mappings = mappings(protocol);
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this.useMappedNames = useMappedNames;
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}
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public DataFiller reader(final String identifier, final DataReader<T> reader) {
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readers.put(useMappedNames ? mappings.mappedId(identifier) : mappings.id(identifier), reader);
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return this;
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}
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public DataFiller reader(final int id, final DataReader<T> reader) {
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readers.put(id, reader);
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return this;
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}
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}
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protected abstract FullMappings mappings(Protocol<?, ?, ?, ?> protocol);
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@FunctionalInterface
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public interface DataReader<T> {
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/**
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* Reads a value from the buffer and adds it to the data.
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*
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* @param buf buffer
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* @param value value
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* @throws Exception if an error occurs during buffer reading
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*/
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void read(ByteBuf buf, T value) throws Exception;
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}
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}
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