001/*
002 * Copyright (c) 2025 See AUTHORS file.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *   http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 */
017
018package com.github.tommyettinger.kryo.libgdx;
019
020import com.badlogic.gdx.utils.IntIntMap;
021import com.esotericsoftware.kryo.Kryo;
022import com.esotericsoftware.kryo.Serializer;
023import com.esotericsoftware.kryo.io.Input;
024import com.esotericsoftware.kryo.io.Output;
025
026/**
027 * Kryo {@link Serializer} for libGDX {@link IntIntMap}s.
028 */
029public class IntIntMapSerializer extends Serializer<IntIntMap> {
030
031    public IntIntMapSerializer() {
032        setImmutable(false);
033    }
034
035    @Override
036    public void write(final Kryo kryo, final Output output, final IntIntMap data) {
037        output.writeVarInt(data.size, true);
038        IntIntMap.Keys keys = data.keys();
039        for (int item; keys.hasNext;) {
040            item = keys.next();
041            output.writeInt(item);
042            output.writeInt(data.get(item, 0));
043        }
044    }
045
046    @Override
047    public IntIntMap read(final Kryo kryo, final Input input, final Class<? extends IntIntMap> dataClass) {
048        final int len = input.readVarInt(true);
049        IntIntMap data = new IntIntMap(len);
050        for (int i = 0; i < len; i++) {
051            data.put(input.readInt(), input.readInt());
052        }
053        return data;
054    }
055
056    @Override
057    public IntIntMap copy(Kryo kryo, IntIntMap original) {
058        return new IntIntMap(original);
059    }
060}