Class: SDL2::Color

Inherits:
Struct
  • Object
show all
Defined in:
lib/sdl2/color.rb

Overview

SDL_pixels.h:252~258

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Struct

#==, #free, #initialize, release, #update_members

Methods included from StructHelper

#member_readers, #member_writers

Constructor Details

This class inherits a constructor from SDL2::Struct

Class Method Details

.cast(something) ⇒ Object

If possible, convert argument into a SDL::Color



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# File 'lib/sdl2/color.rb', line 21

def self.cast(something)
  if something.kind_of? Array
    something.map!(&:to_i)
    result = new
    result.set(*something)

    return result
  else
    return super
  end
end

.create(values = {}) ⇒ Object 



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# File 'lib/sdl2/color.rb', line 15

def self.create(values = {})
  values[:a] ||= ALPHA_OPAQUE
   super(values)
end

Instance Method Details

#copy_from(color) ⇒ Object 



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# File 'lib/sdl2/color.rb', line 40

def copy_from(color)
  [:r, :g, :b, :a].each do |c|
    self.send("#{c}=", color.send(c))
  end
end

#set(r, g, b, a = nil) ⇒ Object 



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# File 'lib/sdl2/color.rb', line 33

def set(r,g,b,a=nil)
  self.r = r
  self.g = g
  self.b = b
  self.a = a.nil? ? ALPHA_OPAQUE : a
end

#to_a ⇒ Object 



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# File 'lib/sdl2/color.rb', line 46

def to_a
  [r, g, b, a]
end