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Simple Easing Functions in Javascript - see https://github.com/gre/bezier-easing
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| /* | |
| * Easing Functions - inspired from http://gizma.com/easing/ | |
| * only considering the t value for the range [0, 1] => [0, 1] | |
| */ | |
| EasingFunctions = { | |
| // no easing, no acceleration | |
| linear: t => t, | |
| // accelerating from zero velocity | |
| easeInQuad: t => t*t, | |
| // decelerating to zero velocity | |
| easeOutQuad: t => t*(2-t), | |
| // acceleration until halfway, then deceleration | |
| easeInOutQuad: t => t<.5 ? 2*t*t : -1+(4-2*t)*t, | |
| // accelerating from zero velocity | |
| easeInCubic: t => t*t*t, | |
| // decelerating to zero velocity | |
| easeOutCubic: t => (--t)*t*t+1, | |
| // acceleration until halfway, then deceleration | |
| easeInOutCubic: t => t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1, | |
| // accelerating from zero velocity | |
| easeInQuart: t => t*t*t*t, | |
| // decelerating to zero velocity | |
| easeOutQuart: t => 1-(--t)*t*t*t, | |
| // acceleration until halfway, then deceleration | |
| easeInOutQuart: t => t<.5 ? 8*t*t*t*t : 1-8*(--t)*t*t*t, | |
| // accelerating from zero velocity | |
| easeInQuint: t => t*t*t*t*t, | |
| // decelerating to zero velocity | |
| easeOutQuint: t => 1+(--t)*t*t*t*t, | |
| // acceleration until halfway, then deceleration | |
| easeInOutQuint: t => t<.5 ? 16*t*t*t*t*t : 1+16*(--t)*t*t*t*t, | |
| // smootherstep | |
| easeInOutSmoother: t => 6*t*t*t*t*t-15*t*t*t*t+10*t*t*t | |
| } |
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