91 lines
2.9 KiB
C#
91 lines
2.9 KiB
C#
using UnityEngine;
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namespace Febucci.UI.Effects
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{
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//TODO Docs
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/// <summary>
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/// Helper class used to interpolate effects.
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/// </summary>
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public static class Tween
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{
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public static float EaseIn(float t)
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{
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return t * t;
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}
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public static float Flip(float x)
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{
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return 1 - x;
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}
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public static float Square(float t)
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{
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return t * t;
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}
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public static float EaseOut(float t)
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{
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return Flip(Square(Flip(t)));
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}
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public static float EaseInOut(float t)
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{
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return Mathf.Lerp(EaseIn(t), EaseOut(t), t);
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}
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#region BounceOut
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public static float BounceOut(float t)
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{
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/*
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License of the original method/algorithm, modified later for C#.
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------------------------Start------------------------
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The MIT License
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Copyright (c) 2010-2012 Tween.js authors.
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Easing equations Copyright (c) 2001 Robert Penner http:/robertpenner.com/ easing/
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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------------------------End------------------------
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*/
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if (t < (1f / 2.75f))
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{
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return 7.5625f * t * t;
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}
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else if (t < (2f / 2.75f))
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{
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return 7.5625f * (t -= (1.5f / 2.75f)) * t + 0.75f;
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}
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else if (t < (2.5f / 2.75f))
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{
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return 7.5625f * (t -= (2.25f / 2.75f)) * t + 0.9375f;
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}
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else
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{
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return 7.5625f * (t -= (2.625f / 2.75f)) * t + 0.984375f;
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}
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}
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#endregion
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}
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}
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