Golang Image.DrawRectangle Examples

Example #1

File: intro.go Project: syndr0m/gotris

func drawIntroMask(screen *image.Image, frame uint64, fps uint) {
	var maxFrame uint64 = uint64(maskDuration * fps)

	if frame < maxFrame {
		black := mygameengine.COLOR_BLACK
		black.A = uint8(math.Max(0, 255-float64(frame)*(255/float64(maxFrame))))
		screen.DrawRectangle(0, 0, 640, 480, black)
	}
}

Example #2

File: game.go Project: syndr0m/gotris

func drawGameBackground(screen *image.Image) {
	screen.DrawRectangle(0, 0, 640, 480, mygameengine.COLOR_BLACK)
}

Example #3

File: game.go Project: syndr0m/gotris

func drawGameFlash(screen *image.Image, flash int) {
	white := mygameengine.COLOR_WHITE
	white.A = uint8(25 * flash)
	screen.DrawRectangle(0, 0, 640, 480, white)
}