78 lines
2.7 KiB
Java
78 lines
2.7 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.data;
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import it.unimi.dsi.fastutil.ints.Int2IntMap;
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import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap;
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public class Int2IntMapMappings implements Mappings {
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private final Int2IntMap mappings;
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private final int mappedIds;
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protected Int2IntMapMappings(final Int2IntMap mappings, final int mappedIds) {
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this.mappings = mappings;
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this.mappedIds = mappedIds;
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mappings.defaultReturnValue(-1);
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}
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public static Int2IntMapMappings of(final Int2IntMap mappings, final int mappedIds) {
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return new Int2IntMapMappings(mappings, mappedIds);
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}
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public static Int2IntMapMappings of() {
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return new Int2IntMapMappings(new Int2IntOpenHashMap(), -1);
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}
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@Override
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public int getNewId(final int id) {
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return mappings.get(id);
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}
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@Override
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public void setNewId(final int id, final int mappedId) {
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mappings.put(id, mappedId);
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}
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@Override
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public int size() {
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return mappings.size();
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}
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@Override
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public int mappedSize() {
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return mappedIds;
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}
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@Override
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public Mappings inverse() {
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final Int2IntMap inverse = new Int2IntOpenHashMap();
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inverse.defaultReturnValue(-1);
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for (final Int2IntMap.Entry entry : mappings.int2IntEntrySet()) {
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if (entry.getIntValue() != -1) {
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inverse.putIfAbsent(entry.getIntValue(), entry.getIntKey());
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}
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}
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return of(inverse, size());
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}
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}
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