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require 'sdl'
SDL.init( SDL::INIT_VIDEO )
screen = SDL::Screen.open(640,480,16,SDL::SWSURFACE)
SDL::WM::set_caption $0, $0
Red=screen.format.map_rgb(255,0,0)
screen.draw_line(20,20,300,200,Red, true)
screen.draw_circle(100,100,50,[87,87,87], false, true)
screen.draw_circle(300,300,30,Red, true, true)
screen.draw_ellipse(320,240,100,200,[200,255,0], false, true)
screen.flip
while true
while event = SDL::Event.poll
case event
when SDL::Event::KeyDown, SDL::Event::Quit
exit
end
end
sleep 0.2
end
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