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Contents
# -*- coding: utf-8 -*-
require 'rays/ext'
module Rays
class Color
include Comparable
include Enumerable
alias r= red=
alias r red
alias g= green=
alias g green
alias b= blue=
alias b blue
alias a= alpha=
alias a alpha
def opaque?()
alpha >= 1
end
def transparent?()
alpha <= 0
end
def translucent?()
a = alpha
0 < a && a < 1
end
def each(&block)
to_a.each(&block)
end
def to_a()
[red, green, blue, alpha]
end
def to_s()
to_a.to_s
end
def [](index)
case index
when 0 then red
when 1 then green
when 2 then blue
when 3 then alpha
else raise IndexError
end
end
def []=(index, val)
case index
when 0 then self.red = val
when 1 then self.green = val
when 2 then self.blue = val
when 3 then self.alpha = val
else raise IndexError
end
end
def <=>(o)
ret = red <=> o.red; return ret if ret != 0
ret = green <=> o.green; return ret if ret != 0
ret = blue <=> o.blue; return ret if ret != 0
alpha <=> o.alpha
end
def hash()
red.hash + green.hash + blue.hash + alpha.hash
end
def eql?(o)
self == o
end
def inspect()
"#<#{self.class.name} #{to_s}>"
end
end# Color
end# Rays
Version data entries
13 entries across 13 versions & 1 rubygems