File: alpha.rb

package info (click to toggle)
libsdl-ruby 0.7-2
  • links: PTS
  • area: main
  • in suites: woody
  • size: 408 kB
  • ctags: 360
  • sloc: ansic: 2,714; ruby: 781; makefile: 120
file content (27 lines) | stat: -rw-r--r-- 530 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
require 'sdl'

SDL.init( SDL::INIT_VIDEO )
screen = SDL::setVideoMode(640,480,16,SDL::SWSURFACE)

image = SDL::Surface.loadBMP("icon.bmp")
image.setColorKey( SDL::SRCCOLORKEY ,0)
image = image.displayFormat

event=SDL::Event.new
i=0;
while true 
  if  event.poll != 0 then
    if event.type==SDL::Event::QUIT then
      break
    end
    if event.type==SDL::Event::KEYDOWN then
      exit
    end
  end
  screen.fillRect(0,0,640,480,0)

  image.setAlpha(SDL::SRCALPHA,i%256)
  screen.put(image,310,195)
    i+=1
  screen.flip
end