79 lines
2.6 KiB
Java
79 lines
2.6 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.minecraft.item;
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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 com.viaversion.viaversion.util.Unit;
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import io.netty.buffer.ByteBuf;
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public final class ItemData<T> implements IdHolder {
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private final Type<T> type;
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private T value;
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private int id;
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public ItemData(final Type<T> type, final T value, final int id) {
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this.type = type;
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this.value = value;
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this.id = id;
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}
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public static ItemData<?> empty(final int id) {
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return new ItemData<>(Type.UNIT, Unit.INSTANCE, id);
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}
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public boolean isEmpty() {
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return type == Type.UNIT;
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}
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public void setValue(final T value) {
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if (value != null && !type.getOutputClass().isAssignableFrom(value.getClass())) {
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throw new IllegalArgumentException("Item data type and value are incompatible. Type=" + type
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+ ", value=" + value + " (" + value.getClass().getSimpleName() + ")");
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}
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this.value = value;
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}
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public void write(final ByteBuf buffer) throws Exception {
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type.write(buffer, value);
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}
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public void setId(final int id) {
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this.id = id;
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}
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public Type<T> type() {
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return type;
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}
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public T value() {
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return value;
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}
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@Override
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public int id() {
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return id;
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}
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}
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