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examples: Use RunGame

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Updates #1111
This commit is contained in:
Hajime Hoshi
2020-05-12 02:11:09 +09:00
parent a5d570a7a8
commit dc3ed76e3e
5 changed files with 130 additions and 83 deletions
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42
examples/noise/main.go
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@@ -30,10 +30,6 @@ const (
screenHeight = 240
)
var (
noiseImage *image.RGBA
)
type rand struct {
x, y, z, w uint32
}
@@ -49,29 +45,39 @@ func (r *rand) next() uint32 {
var theRand = &rand{12345678, 4185243, 776511, 45411}
func update(screen *ebiten.Image) error {
type Game struct {
noiseImage *image.RGBA
}
func (g *Game) Update(screen *ebiten.Image) error {
// Generate the noise with random RGB values.
const l = screenWidth * screenHeight
for i := 0; i < l; i++ {
x := theRand.next()
noiseImage.Pix[4*i] = uint8(x >> 24)
noiseImage.Pix[4*i+1] = uint8(x >> 16)
noiseImage.Pix[4*i+2] = uint8(x >> 8)
noiseImage.Pix[4*i+3] = 0xff
g.noiseImage.Pix[4*i] = uint8(x >> 24)
g.noiseImage.Pix[4*i+1] = uint8(x >> 16)
g.noiseImage.Pix[4*i+2] = uint8(x >> 8)
g.noiseImage.Pix[4*i+3] = 0xff
}
if ebiten.IsDrawingSkipped() {
return nil
}
screen.ReplacePixels(noiseImage.Pix)
ebitenutil.DebugPrint(screen, fmt.Sprintf("TPS: %0.2f", ebiten.CurrentTPS()))
return nil
}
func (g *Game) Draw(screen *ebiten.Image) {
screen.ReplacePixels(g.noiseImage.Pix)
ebitenutil.DebugPrint(screen, fmt.Sprintf("TPS: %0.2f", ebiten.CurrentTPS()))
}
func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
return screenWidth, screenHeight
}
func main() {
noiseImage = image.NewRGBA(image.Rect(0, 0, screenWidth, screenHeight))
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Noise (Ebiten Demo)"); err != nil {
ebiten.SetWindowSize(screenWidth*2, screenHeight*2)
ebiten.SetWindowTitle("Noise (Ebiten Demo)")
g := &Game{
noiseImage: image.NewRGBA(image.Rect(0, 0, screenWidth, screenHeight)),
}
if err := ebiten.RunGame(g); err != nil {
log.Fatal(err)
}
}