ViaVersion/common/src/main/java/com/viaversion/viaversion/util/KeyMappings.java

56 lines
1.7 KiB
Java

/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2024 ViaVersion and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.viaversion.viaversion.util;
import it.unimi.dsi.fastutil.objects.Object2IntMap;
import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
import org.checkerframework.checker.nullness.qual.Nullable;
public final class KeyMappings {
private final Object2IntMap<String> keyToId;
private final String[] keys;
public KeyMappings(final String... keys) {
this.keys = keys;
keyToId = new Object2IntOpenHashMap<>(keys.length);
for (int i = 0; i < keys.length; i++) {
keyToId.put(keys[i], i);
}
}
public @Nullable String idToKey(final int id) {
if (id < 0 || id >= keys.length) {
return null;
}
return keys[id];
}
public int keyToId(final String identifier) {
return keyToId.getInt(Key.stripMinecraftNamespace(identifier));
}
public String[] keys() {
return keys;
}
public int size() {
return keys.length;
}
}