分享几个比较有用的脚本ease in/out效果的脚本

ease_linear

/// @function  ease_linear(time, start, change, duration)
/// @param time
/// @param start
/// @param change
/// @param duation

var t = argument[0]; //time
var b = argument[1]; //begin(start)
var c = argument[2]; //change
var d = argument[3]; //duration

t /= d;

return c*t + b;

ease_in

/// @function  ease_in(time, start, change, duration)
/// @param time
/// @param start
/// @param change
/// @param duation

var t = argument[0]; //time
var b = argument[1]; //begin(start)
var c = argument[2]; //change
var d = argument[3]; //duration

t /= d; 

return c*t*t*t + b;

ease_in_out

/// @function  ease_in_out(time, start, change, duration)
/// @param time
/// @param start
/// @param change
/// @param duation

var t = argument[0]; //time
var b = argument[1]; //begin(start)
var c = argument[2]; //change
var d = argument[3]; //duration

t /= d/2;
if (t < 1) return c/2*t*t + b;
t--;
return -c/2 * (t*(t-2)-1) + b;

ease_out_elastic

var t = argument[0]; //time
var b = argument[1]; //begin(start)
var c = argument[2]; //change
var d = argument[3]; //duration

var s = 1.7;
var p = 0;
var a = c;
if (t==0) return b;
t/=d;
if (t==1) return b+c;
if (!p) p=d*0.4; //effect bounce
if (a<abs(c)) {
a=c;
s=p/4;
} else {
s=p/(2*pi)*arcsin(c/a);
}

return a*power(2,-10*t)*sin((t*d-s)*(2*pi)/p)+c+b;

实际效果如下

试验了一下配合的效果

12/31/2018

H