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examples/wheel: Use RunGame (#1182)

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Updates #1111
This commit is contained in:
loig 2020-06-07 12:23:25 +02:00 committed by GitHub
parent 6d779965f9
commit e117086ca1
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 15 deletions
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35
examples/wheel/main.go
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@ -37,33 +37,38 @@ const (
screenHeight = 240
)
var (
x = 0.0
y = 0.0
)
type Game struct {
x float64
y float64
}
func update(screen *ebiten.Image) error {
func (g *Game) Update(screen *ebiten.Image) error {
dx, dy := ebiten.Wheel()
x += dx
y += dy
if ebiten.IsDrawingSkipped() {
return nil
}
g.x += dx
g.y += dy
return nil
}
func (g *Game) Draw(screen *ebiten.Image) {
op := &ebiten.DrawImageOptions{}
op.GeoM.Translate(x, y)
op.GeoM.Translate(g.x, g.y)
op.GeoM.Translate(screenWidth/2, screenHeight/2)
screen.DrawImage(pointerImage, op)
ebitenutil.DebugPrint(screen,
fmt.Sprintf("Move the red point by mouse wheel\n(%0.2f, %0.2f)", x, y))
fmt.Sprintf("Move the red point by mouse wheel\n(%0.2f, %0.2f)", g.x, g.y))
}
return nil
func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
return screenWidth, screenHeight
}
func main() {
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Wheel (Ebiten Demo)"); err != nil {
g := &Game{x: 0.0, y: 0.0}
ebiten.SetWindowSize(screenWidth*2, screenHeight*2)
ebiten.SetWindowTitle("Wheel (Ebiten Demo)")
if err := ebiten.RunGame(g); err != nil {
log.Fatal(err)
}
}