/* Copyright (C) 2024 José Rebelo
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This file is part of Gadgetbridge.
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Gadgetbridge is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gadgetbridge is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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package nodomain.freeyourgadget.gadgetbridge.devices.test;
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import java.util.Random;
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/**
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* Utility class to try and get deterministic random values across multiple users. This is not efficient
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* and should definitely be improved.
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*/
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public class TestDeviceRand {
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public static final long BASE_TIMESTAMP = 1420499943000L;
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private TestDeviceRand() {
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// utility class
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}
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public static int randInt(final long ts, final int min, final int max) {
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return new Random(ts - BASE_TIMESTAMP).nextInt((max - min) + 1) + min;
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}
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public static long randLong(final long ts, final long min, final long max) {
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return (long) (new Random(ts - BASE_TIMESTAMP).nextFloat() * (max - min) + min);
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}
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public static float randFloat(final long ts, final float min, final float max) {
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return new Random(ts - BASE_TIMESTAMP).nextFloat() * (max - min) + min;
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}
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public static boolean randBool(final long ts, final float pTrue) {
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return new Random(ts - BASE_TIMESTAMP).nextFloat() < pTrue;
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}
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}
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