bc518174
 王天杨
提交两个项目文件
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var overshoot = 1.70158;
export var backIn = (function custom(s) {
s = +s;
function backIn(t) {
return (t = +t) * t * (s * (t - 1) + t);
}
backIn.overshoot = custom;
return backIn;
})(overshoot);
export var backOut = (function custom(s) {
s = +s;
function backOut(t) {
return --t * t * ((t + 1) * s + t) + 1;
}
backOut.overshoot = custom;
return backOut;
})(overshoot);
export var backInOut = (function custom(s) {
s = +s;
function backInOut(t) {
return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2;
}
backInOut.overshoot = custom;
return backInOut;
})(overshoot);
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