Example #1
0
func (e *engine) LoadTexture(src image.Image) (sprite.Texture, error) {
	b := src.Bounds()
	t := &texture{glutil.NewImage(b.Dx(), b.Dy()), b}
	t.Upload(b, src)
	// TODO: set "glImage.Pix = nil"?? We don't need the CPU-side image any more.
	return t, nil
}
Example #2
0
// DrawFPS draws the per second framerate in the bottom-left of the screen.
func DrawFPS(c config.Event) {
	const imgW, imgH = 7*(fontWidth+1) + 1, fontHeight + 2

	fps.mu.Lock()
	if fps.c != c || fps.m == nil {
		fps.c = c
		fps.m = glutil.NewImage(imgW, imgH)
	}
	fps.mu.Unlock()

	display := [7]byte{
		4: 'F',
		5: 'P',
		6: 'S',
	}
	now := time.Now()
	f := 0
	if dur := now.Sub(lastDraw); dur > 0 {
		f = int(time.Second / dur)
	}
	display[2] = '0' + byte((f/1e0)%10)
	display[1] = '0' + byte((f/1e1)%10)
	display[0] = '0' + byte((f/1e2)%10)
	draw.Draw(fps.m.RGBA, fps.m.RGBA.Bounds(), image.White, image.Point{}, draw.Src)
	for i, c := range display {
		glyph := glyphs[c]
		if len(glyph) != fontWidth*fontHeight {
			continue
		}
		for y := 0; y < fontHeight; y++ {
			for x := 0; x < fontWidth; x++ {
				if glyph[fontWidth*y+x] == ' ' {
					continue
				}
				fps.m.RGBA.SetRGBA((fontWidth+1)*i+x+1, y+1, color.RGBA{A: 0xff})
			}
		}
	}

	fps.m.Upload()
	fps.m.Draw(
		c,
		geom.Point{0, c.Height - imgH},
		geom.Point{imgW, c.Height - imgH},
		geom.Point{0, c.Height},
		fps.m.RGBA.Bounds(),
	)

	lastDraw = now
}
Example #3
0
func DrawResult(c config.Event, rate int) {
	const imgW, imgH = 8*(fontWidth+1) + 1, fontHeight + 2

	image_result := glutil.NewImage(imgW, imgH)

	display := [8]byte{
		4: 'M',
		5: 'B',
		6: 'P',
		7: 'S',
	}

	display[2] = '0' + byte((rate/1e0)%10)
	display[1] = '0' + byte((rate/1e1)%10)
	display[0] = '0' + byte((rate/1e2)%10)

	draw.Draw(image_result.RGBA, image_result.RGBA.Bounds(), image.White, image.Point{}, draw.Src)
	for i, c := range display {
		glyph := glyphs[c]
		if len(glyph) != fontWidth*fontHeight {
			continue
		}
		for y := 0; y < fontHeight; y++ {
			for x := 0; x < fontWidth; x++ {
				if glyph[fontWidth*y+x] == ' ' {
					continue
				}
				image_result.RGBA.SetRGBA((fontWidth+1)*i+x+1, y+1, color.RGBA{A: 0xff})
			}
		}
	}

	image_result.Upload()
	image_result.Draw(
		c,
		geom.Point{0, c.HeightPt - imgH},
		geom.Point{imgW, c.HeightPt - imgH},
		geom.Point{0, c.HeightPt},
		image_result.RGBA.Bounds(),
	)
}