func paint(canvas *ebiten.Image, x, y int) {
	op := &ebiten.DrawImageOptions{}
	op.GeoM.Translate(float64(x), float64(y))
	// Scale the color and rotate the hue so that colors vary on each frame.
	op.ColorM.Scale(1.0, 0.50, 0.125, 1.0)
	tps := ebiten.MaxTPS()
	theta := 2.0 * math.Pi * float64(count%tps) / float64(tps)
	op.ColorM.RotateHue(theta)
	canvas.DrawImage(brushImage, op)
}
func paint(canvas *ebiten.Image, x, y int) {
	op := &ebiten.DrawImageOptions{}
	op.GeoM.Translate(float64(x), float64(y))
	
	op.ColorM.Scale(1.0, 0.50, 0.125, 1.0)
	tps := ebiten.MaxTPS()
	theta := 2.0 * math.Pi * float64(count%tps) / float64(tps)
	op.ColorM.RotateHue(theta)
	canvas.DrawImage(brushImage, op)
}
func paint ( canvas * ebiten . Image , x , y int ) { op := & ebiten . DrawImageOptions { } op . GeoM . Translate ( float64 ( x ) , float64 ( y ) ) // Scale the color and rotate the hue so that colors vary on each frame. op . ColorM . Scale ( 1.0 , 0.50 , 0.125 , 1.0 ) tps := ebiten . MaxTPS ( ) theta := 2.0 * math . Pi * float64 ( count % tps ) / float64 ( tps ) op . ColorM . RotateHue ( theta ) canvas . DrawImage ( brushImage , op ) }
// paint draws the brush on the given canvas image at the position (x, y).
paint draws the brush on the given canvas image at the position ( x y ) .