ViaVersion/api/src/main/java/com/viaversion/viaversion/api/data/Int2IntMapMappings.java

78 lines
2.7 KiB
Java

/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2024 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.data;
import it.unimi.dsi.fastutil.ints.Int2IntMap;
import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap;
public class Int2IntMapMappings implements Mappings {
private final Int2IntMap mappings;
private final int mappedIds;
protected Int2IntMapMappings(final Int2IntMap mappings, final int mappedIds) {
this.mappings = mappings;
this.mappedIds = mappedIds;
mappings.defaultReturnValue(-1);
}
public static Int2IntMapMappings of(final Int2IntMap mappings, final int mappedIds) {
return new Int2IntMapMappings(mappings, mappedIds);
}
public static Int2IntMapMappings of() {
return new Int2IntMapMappings(new Int2IntOpenHashMap(), -1);
}
@Override
public int getNewId(final int id) {
return mappings.get(id);
}
@Override
public void setNewId(final int id, final int mappedId) {
mappings.put(id, mappedId);
}
@Override
public int size() {
return mappings.size();
}
@Override
public int mappedSize() {
return mappedIds;
}
@Override
public Mappings inverse() {
final Int2IntMap inverse = new Int2IntOpenHashMap();
inverse.defaultReturnValue(-1);
for (final Int2IntMap.Entry entry : mappings.int2IntEntrySet()) {
if (entry.getIntValue() != -1) {
inverse.putIfAbsent(entry.getIntValue(), entry.getIntKey());
}
}
return of(inverse, size());
}
}