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

60 lines
2.0 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;
public class IdentityMappings implements Mappings {
private final int size;
private final int mappedSize;
public IdentityMappings(final int size, final int mappedSize) {
this.size = size;
this.mappedSize = mappedSize;
}
@Override
public int getNewId(final int id) {
return id >= 0 && id < size ? id : -1;
}
@Override
public void setNewId(final int id, final int mappedId) {
throw new UnsupportedOperationException();
}
@Override
public int size() {
return size;
}
@Override
public int mappedSize() {
return mappedSize;
}
@Override
public Mappings inverse() {
return new IdentityMappings(mappedSize, size);
}
}