65 lines
1.6 KiB
JavaScript
65 lines
1.6 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
/* PennerEasing */
|
||
|
|
export const Linear = {
|
||
|
|
easeNone: (t, b, c, d) => {
|
||
|
|
return (c * t) / d + b;
|
||
|
|
},
|
||
|
|
easeIn: (t, b, c, d) => {
|
||
|
|
return (c * t) / d + b;
|
||
|
|
},
|
||
|
|
easeOut: (t, b, c, d) => {
|
||
|
|
return (c * t) / d + b;
|
||
|
|
},
|
||
|
|
easeInOut: (t, b, c, d) => {
|
||
|
|
return (c * t) / d + b;
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
export const Bounce = {
|
||
|
|
easeIn: (t, b, c, d) => {
|
||
|
|
return c - Bounce.easeOut(d - t, 0, c, d) + b;
|
||
|
|
},
|
||
|
|
|
||
|
|
easeOut: (t, b, c, d) => {
|
||
|
|
if ((t /= d) < 1 / 2.75) {
|
||
|
|
return c * (7.5625 * t * t) + b;
|
||
|
|
} else if (t < 2 / 2.75) {
|
||
|
|
let postFix = (t -= 1.5 / 2.75);
|
||
|
|
return c * (7.5625 * postFix * t + 0.75) + b;
|
||
|
|
} else if (t < 2.5 / 2.75) {
|
||
|
|
let postFix = (t -= 2.25 / 2.75);
|
||
|
|
return c * (7.5625 * postFix * t + 0.9375) + b;
|
||
|
|
} else {
|
||
|
|
let postFix = (t -= 2.625 / 2.75);
|
||
|
|
return c * (7.5625 * postFix * t + 0.984375) + b;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
easeInOut: (t, b, c, d) => {
|
||
|
|
if (t < d / 2) return Bounce.easeIn(t * 2, 0, c, d) * 0.5 + b;
|
||
|
|
else return Bounce.easeOut(t * 2 - d, 0, c, d) * 0.5 + c * 0.5 + b;
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
var Back = {
|
||
|
|
easeIn: (t, b, c, d) => {
|
||
|
|
let s = 1.70158;
|
||
|
|
let postFix = (t /= d);
|
||
|
|
return c * postFix * t * ((s + 1) * t - s) + b;
|
||
|
|
},
|
||
|
|
|
||
|
|
easeOut: (t, b, c, d) => {
|
||
|
|
let s = 1.70158;
|
||
|
|
return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;
|
||
|
|
},
|
||
|
|
|
||
|
|
easeInOut: (t, b, c, d) => {
|
||
|
|
let s = 1.70158;
|
||
|
|
if ((t /= d / 2) < 1)
|
||
|
|
return (c / 2) * (t * t * (((s *= 1.525) + 1) * t - s)) + b;
|
||
|
|
let postFix = (t -= 2);
|
||
|
|
return (c / 2) * (postFix * t * (((s *= 1.525) + 1) * t + s) + 2) + b;
|
||
|
|
},
|
||
|
|
};
|