A simple Framer module for performing animation curve math

Curves.coffee

###
	# Adapted from https://gist.github.com/gre/1650294
	# USING THE CURVES MODULE

	# Require the module
	Curves = require "Curves"

	# Translate a value between 0 and 1 into the "curved" value
	print Curves.easeOutQuad(0.5)

###
exports.linear = (t) ->
	t
exports.easeInQuad = (t) ->
	t * t
exports.easeOutQuad = (t) ->
	t * (2 - t)
exports.easeInOutQuad = (t) ->
	if t < .5 then 2 * t * t else -1 + (4 - (2 * t)) * t
exports.easeInCubic= (t) ->
	t * t * t
exports.easeOutCubic= (t) ->
	--t * t * t + 1
exports.easeInOutCubic = (t) ->
	if t < .5 then 4 * t * t * t else (t - 1) * (2 * t - 2) * (2 * t - 2) + 1
exports.easeInQuart= (t) ->
	t * t * t * t
exports.easeOutQuart= (t) ->
	1 - (--t * t * t * t)
exports.easeInOutQuart = (t) ->
	if t < .5 then 8 * t * t * t * t else 1 - (8 * --t * t * t * t)
exports.easeInQuint= (t) ->
	t * t * t * t * t
exports.easeOutQuint = (t) ->
	1 + --t * t * t * t * t
exports.easeInOutQuint = (t) ->
	if t < .5 then 16 * t * t * t * t * t else 1 + 16 * --t * t * t * t * t