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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
9 entries across 9 versions & 1 rubygems