src/main/java/kubatech/api/utils/FastRandom.java


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/*
 * KubaTech - Gregtech Addon Copyright (C) 2022 - 2023 kuba6000 This library is free software; you can redistribute it
 * and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 3 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have
 * received a copy of the GNU Lesser General Public License along with this library. If not, see
 * <https://www.gnu.org/licenses/>.
 */

package kubatech.api.utils;

import java.util.Random;
import java.util.SplittableRandom;

public class FastRandom extends Random {

    private SplittableRandom realRandom;

    public FastRandom() {
        realRandom = new SplittableRandom();
    }

    public FastRandom(long seed) {
        realRandom = new SplittableRandom(seed);
    }

    @Override
    public synchronized void setSeed(long seed) {
        realRandom = new SplittableRandom(seed);
    }

    @Override
    protected int next(int bits) {
        return (realRandom.nextInt() >>> (32 - bits));
    }
}