Nabeel
Super simple, fast and easy to use tweening functions for unity which incorporates optimised Robert Penner's equations.
Functions taken from https://github.com/sole/tween.js/blob/master/src/Tween.js
and converted for unity by Fonserbc / https://gist.github.com/Fonserbc/3d31a25e87fdaa541ddf#file-easing-cs
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using UnityEngine;/** Functions taken from Tween.js - Licensed under the MIT license* at https://github.com/sole/tween.js*/public class Easing{public static float Linear (float k) {return k;}public class Quadratic{public static float In (float k) {return k*k;}public static float Out (float k) {return k*(2f - k);}public static float InOut (float k) {if ((k *= 2f) < 1f) return 0.5f*k*k;return -0.5f*((k -= 1f)*(k - 2f) - 1f);}};public class Cubic{public static float In (float k) {return k*k*k;}public static float Out (float k) {return 1f + ((k -= 1f)*k*k);}public static float InOut (float k) {if ((k *= 2f) < 1f) return 0.5f*k*k*k;return 0.5f*((k -= 2f)*k*k + 2f);}};public class Quartic{public static float In (float k) {return k*k*k*k;}public static float Out (float k) {return 1f - ((k -= 1f)*k*k*k);}public static float InOut (float k) {if ((k *= 2f) < 1f) return 0.5f*k*k*k*k;return -0.5f*((k -= 2f)*k*k*k - 2f);}};public class Quintic{public static float In (float k) {return k*k*k*k*k;}public static float Out (float k) {return 1f + ((k -= 1f)*k*k*k*k);}public static float InOut (float k) {if ((k *= 2f) < 1f) return 0.5f*k*k*k*k*k;return 0.5f*((k -= 2f)*k*k*k*k + 2f);}};public class Sinusoidal{public static float In (float k) {return 1f - Mathf.Cos(k*Mathf.PI/2f);}public static float Out (float k) {return Mathf.Sin(k*Mathf.PI/2f);}public static float InOut (float k) {return 0.5f*(1f - Mathf.Cos(Mathf.PI*k));}};public class Exponential{public static float In (float k) {return k == 0f? 0f : Mathf.Pow(1024f, k - 1f);}public static float Out (float k) {return k == 1f? 1f : 1f - Mathf.Pow(2f, -10f*k);}public static float InOut (float k) {if (k == 0f) return 0f;if (k == 1f) return 1f;if ((k *= 2f) < 1f) return 0.5f*Mathf.Pow(1024f, k - 1f);return 0.5f*(-Mathf.Pow(2f, -10f*(k - 1f)) + 2f);}};public class Circular{public static float In (float k) {return 1f - Mathf.Sqrt(1f - k*k);}public static float Out (float k) {return Mathf.Sqrt(1f - ((k -= 1f)*k));}public static float InOut (float k) {if ((k *= 2f) < 1f) return -0.5f*(Mathf.Sqrt(1f - k*k) - 1);return 0.5f*(Mathf.Sqrt(1f - (k -= 2f)*k) + 1f);}};public class Elastic{public static float In (float k) {if (k == 0) return 0;if (k == 1) return 1;return -Mathf.Pow( 2f, 10f*(k -= 1f))*Mathf.Sin((k - 0.1f)*(2f*Mathf.PI)/0.4f);}public static float Out (float k) {if (k == 0) return 0;if (k == 1) return 1;return Mathf.Pow(2f, -10f*k)*Mathf.Sin((k - 0.1f)*(2f*Mathf.PI)/0.4f) + 1f;}public static float InOut (float k) {if ((k *= 2f) < 1f) return -0.5f*Mathf.Pow(2f, 10f*(k -= 1f))*Mathf.Sin((k - 0.1f)*(2f*Mathf.PI)/0.4f);return Mathf.Pow(2f, -10f*(k -= 1f))*Mathf.Sin((k - 0.1f)*(2f*Mathf.PI)/0.4f)*0.5f + 1f;}};public class Back{static float s = 1.70158f;static float s2 = 2.5949095f;public static float In (float k) {return k*k*((s + 1f)*k - s);}public static float Out (float k) {return (k -= 1f)*k*((s + 1f)*k + s) + 1f;}public static float InOut (float k) {if ((k *= 2f) < 1f) return 0.5f*(k*k*((s2 + 1f)*k - s2));return 0.5f*((k -= 2f)*k*((s2 + 1f)*k + s2) + 2f);}};public class Bounce{public static float In (float k) {return 1f - Out(1f - k);}public static float Out (float k) {if (k < (1f/2.75f)) {return 7.5625f*k*k;}else if (k < (2f/2.75f)) {return 7.5625f*(k -= (1.5f/2.75f))*k + 0.75f;}else if (k < (2.5f/2.75f)) {return 7.5625f *(k -= (2.25f/2.75f))*k + 0.9375f;}else {return 7.5625f*(k -= (2.625f/2.75f))*k + 0.984375f;}}public static float InOut (float k) {if (k < 0.5f) return In(k*2f)*0.5f;return Out(k*2f - 1f)*0.5f + 0.5f;}};}---------------------------------------------------
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