use "canvas"
use "std"
g = showcanvas()
width = WIDTH
height = HEIGHT
snow = newarray(50,2)
thread(::run)

def run() {

  while (true){
    g.setColor(0,0,0)
    g.fillRect(0,0,width,height)

    for (i = 0, i < length(snow), i ++){
      if (snow[i][0] > width || snow[i][0] <= 0) snow[i][0] = rand(width)
      if (snow[i][1] > height) snow[i][1] = 5
      if (snow[i][1] <= 0) snow[i][1] = rand(height)
      snow[i][0] += rand(-5, 5)
      snow[i][1] += rand(5)
      g.setColor(#FFFFFFFF)
      g.drawCircle(snow[i][0], snow[i][1], 5)
    }

    //g.drawBitmap(bitmap1, 0, 0)
    //repaint()
    sleep(1000 / 30)
  }
}