This class implements common easing functions. The math is pretty obscure, but this cool website has nice visual illustrations of what they represent: http://xaedes.de/dev/transitions/
方法
static step0(n) #
static step1(n) #
static linear(t) #
static ease(t) #
static quad(t) #
static cubic(t) #
static poly(n) #
static sin(t) #
static circle(t) #
static exp(t) #
static elastic(bounciness) #
A simple elastic interaction, similar to a spring. Default bounciness is 1, which overshoots a little bit once. 0 bounciness doesn't overshoot at all, and bounciness of N > 1 will overshoot about N times.
Wolfram Plots:
http://tiny.cc/elastic_b_1 (default bounciness = 1) http://tiny.cc/elastic_b_3 (bounciness = 3)
static back(s) #
static bounce(t) #
static bezier(x1, y1, x2, y2) #
static in(easing) #
static out(easing) #
Runs an easing function backwards.
static inOut(easing) #
Makes any easing function symmetrical.
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