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/*
 * Copyright (C) 2023 Parisi Alessandro - [email protected]
 * This file is part of MaterialFX (https://github.com/palexdev/MaterialFX)
 *
 * MaterialFX 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.
 *
 * MaterialFX 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 MaterialFX. If not, see .
 */

package io.github.palexdev.mfxeffects.animations.motion;

import io.github.palexdev.mfxeffects.animations.base.Curve;

/**
 * An oscillating curve that grows and then shrinks in {@code magnitude} while overshooting its bounds.
 * 

* Elastic In Out Example *

* The above example is built with a {@code magnitude} of {@code 0.4}. */ public class ElasticInOutCurve extends Curve { private final double period; public ElasticInOutCurve() { this(0.4); } public ElasticInOutCurve(double period) { this.period = period; } @Override public double curve(double t) { final double s = period / 4.0; t = 2.0 * t - 1.0; double sin = Math.sin((t - s) * (Math.PI * 2.0) / period); if (t < 0.0) { return -0.5 * Math.pow(2.0, 10.0 * t) * sin; } else { return Math.pow(2.0, -10.0 * t) * sin * 0.5 + 1.0; } } }





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