SackOfRainbows provides an expressive syntax for creating color generators. Chain generators in serial or parallel to easily produce gradients and complex patterns.
SackOfRainbows is written in Swift 2.0 and requires Xcode 7.
Add the following line to your Podfile and run pod install.
pod 'SackOfRainbows'
To make a single color, use theColor(). All your favorite UIColors have been aliased for easy use.
var redGenerator = theColor(red)
redGenerator.next() // returns red
redGenerator.next() // returns nilYou can generate a bunch of colors in order using theColors() like so:
var rainbow = theColors(red, orange, yellow, green, blue,
UIColor(red: 0.29, green: 0.0, blue: 0.51, alpha: 1), purple)
rainbow.next() // returns red
rainbow.next() // returns orange
rainbow.next() // returns yellow
// ...Making a series of colors in a gradient is easy as well. Just indicate the start color, end color, and how many steps start to finish.
var tequilaSunrise = gradient().from(orange).to(red).steps(10)
tequilaSunrise.next() // returns orange
tequilaSunrise.next() // returns a slightly reddish orange
tequilaSunrise.next() // returns a slightly more reddish orange
// ...
To chain generators in sequence, use then().
let batman = theColors(blue, black)
let robin = theColors(yellow, green, red)
var batmanAndRobin = batman.then(robin)To chain in parallel, use alternate().
var olympics = alternate(batman, robin)
Repeat a fixed number of times with times().
var doubleRainbow = rainbow.times(2)
To enter a world of endless color, use forever().
let blueToWhite = gradient().from(blue).to(white).steps(10)
let whiteToBlue = gradient().from(white).to(blue).steps(10)
var allTheWayAcrossTheSky = blueToWhite.then(whiteToBlue).forever()
SackOfRainbows is released under the MIT License.