func main() {
var err error
const a0, a1, a2 = 0x40, 0xc0, 0xff
pixels := []uint8{
a0, a1, a1, a0,
a1, a2, a2, a1,
a1, a2, a2, a1,
a0, a1, a1, a0,
}
brushImage, err = ebiten.NewImageFromImage(&image.Alpha{
Pix: pixels,
Stride: 4,
Rect: image.Rect(0, 0, 4, 4),
}, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
canvasImage, err = ebiten.NewImage(screenWidth, screenHeight, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
canvasImage.Fill(color.White)
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Paint (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
gophersImage, _, err = common.AssetImage("gophers.jpg", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
fiveyearsImage, _, err = common.AssetImage("fiveyears.jpg", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
maskImage, err = ebiten.NewImage(screenWidth, screenHeight, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
as := image.Point{128, 128}
a := image.NewAlpha(image.Rectangle{image.ZP, as})
for j := 0; j < as.Y; j++ {
for i := 0; i < as.X; i++ {
r := as.X / 2
d := math.Sqrt(float64((i-r)*(i-r) + (j-r)*(j-r)))
b := uint8(max(0, min(0xff, 3*0xff-int(d*3*0xff)/r)))
a.SetAlpha(i, j, color.Alpha{b})
}
}
spotLightImage, err = ebiten.NewImageFromImage(a, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Masking (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func (g *Game) Run(width, height, scale int, title string) error {
ticker := time.NewTicker(time.Millisecond * 70)
go func() {
for range ticker.C {
if ebiten.IsKeyPressed(ebiten.KeyR) {
g.Score = 0
g.newMaze()
}
if ebiten.IsKeyPressed(ebiten.KeyLeft) && g.canGoLeft() {
g.X--
}
if ebiten.IsKeyPressed(ebiten.KeyRight) && g.canGoRight() {
g.X++
}
if ebiten.IsKeyPressed(ebiten.KeyUp) && g.canGoUp() {
g.Y--
}
if ebiten.IsKeyPressed(ebiten.KeyDown) && g.canGoDown() {
g.Y++
}
}
}()
defer ticker.Stop()
return ebiten.Run(g.update, width, height, scale, title)
}
func main() {
var err error
bgImage, _, err = ebitenutil.NewImageFromFile("_resources/images/tile.png", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
w, h := bgImage.Size()
const repeat = 5
repeatedBgImage, err = ebiten.NewImage(w*repeat, h*repeat, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
for j := 0; j < repeat; j++ {
for i := 0; i < repeat; i++ {
op := &ebiten.DrawImageOptions{}
op.GeoM.Translate(float64(w*i), float64(h*j))
if err := repeatedBgImage.DrawImage(bgImage, op); err != nil {
log.Fatal(err)
}
}
}
groundImage, err = ebiten.NewImage(screenWidth, screenHeight, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "infinite scroll"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
gophersImage, _, err = ebitenutil.NewImageFromFile("_resources/images/gophers.jpg", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, initScreenWidth, initScreenHeight, initScreenScale, "Window Size (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
gophersImage, _, err = common.AssetImage("gophers.jpg", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "HSV (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
game, err = twenty48.NewGame()
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, twenty48.ScreenWidth, twenty48.ScreenHeight, 2, "2048 (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
gophersImage, _, err = ebitenutil.NewImageFromFile("images/gophers.jpg", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Rotate (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
ebitenImage, _, err = ebitenutil.NewImageFromFile("_resources/images/ebiten.png", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Alpha Blending (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
flag.Parse()
m = mandelbrot.New(*width, *height, iterations(),
mandelbrot.Colors(hex(*inside), hex(*outside))).Image()
if err := ebiten.Run(update, *width, *height, *scale, "Plasma GUI"); err != nil {
log.Fatal(err)
}
}
func main() {
population := int((screenWidth * screenHeight) / 10)
scale := 2.0
world = NewWorld(screenWidth, screenHeight)
world.RandomSeed(population)
noiseImage = image.NewRGBA(image.Rect(0, 0, screenWidth, screenHeight))
if err := ebiten.Run(update, screenWidth, screenHeight, scale, "Game of Life (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
wavF, err := ebitenutil.OpenFile("_resources/audio/jab.wav")
if err != nil {
log.Fatal(err)
}
oggF, err := ebitenutil.OpenFile("_resources/audio/ragtime.ogg")
if err != nil {
log.Fatal(err)
}
const sampleRate = 22050
const bytesPerSample = 4 // TODO: This should be defined in audio package
audioContext, err = audio.NewContext(sampleRate)
if err != nil {
log.Fatal(err)
}
go func() {
s, err := wav.Decode(audioContext, wavF)
if err != nil {
log.Fatal(err)
return
}
seCh <- s
close(seCh)
}()
go func() {
s, err := vorbis.Decode(audioContext, oggF)
if err != nil {
log.Fatal(err)
return
}
p, err := audio.NewPlayer(audioContext, s)
if err != nil {
log.Fatal(err)
return
}
musicCh <- &Player{
audioPlayer: p,
total: time.Second * time.Duration(s.Size()) / bytesPerSample / sampleRate,
}
close(musicCh)
// TODO: Is this goroutine-safe?
p.Play()
}()
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Audio (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
if musicPlayer != nil {
if err := musicPlayer.close(); err != nil {
log.Fatal(err)
}
}
}
func main() {
var err error
textImage, err = ebiten.NewImage(screenWidth, screenHeight, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := parseFont(); err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 1, "Font (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
gophersImage, _, err = ebitenutil.NewImageFromFile("_resources/images/gophers.jpg", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
w, h := gophersImage.Size()
gophersRenderTarget, err = ebiten.NewImage(w/mosaicRatio, h/mosaicRatio, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Mosaic (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
gophersImage, _, err = ebitenutil.NewImageFromFile("_resources/images/gophers.jpg", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
w, h := gophersImage.Size()
const repeat = 5
repeatedGophersImage, err = ebiten.NewImage(w*repeat, h*repeat, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
for j := 0; j < repeat; j++ {
for i := 0; i < repeat; i++ {
op := &ebiten.DrawImageOptions{}
op.GeoM.Translate(float64(w*i), float64(h*j))
if err := repeatedGophersImage.DrawImage(gophersImage, op); err != nil {
log.Fatal(err)
}
}
}
groundWidth := screenWidth + 70
groundImage, err = ebiten.NewImage(groundWidth, screenHeight*2/3+50, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
const fogHeight = 8
fogRGBA := image.NewRGBA(image.Rect(0, 0, groundWidth, fogHeight))
for j := 0; j < fogHeight; j++ {
a := uint32(float64(fogHeight-1-j) * 0xff / (fogHeight - 1))
clr := skyColor
r, g, b, oa := uint32(clr.R), uint32(clr.G), uint32(clr.B), uint32(clr.A)
clr.R = uint8(r * a / oa)
clr.G = uint8(g * a / oa)
clr.B = uint8(b * a / oa)
clr.A = uint8(a)
for i := 0; i < groundWidth; i++ {
fogRGBA.SetRGBA(i, j, clr)
}
}
fogImage, err = ebiten.NewImageFromImage(fogRGBA, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Air Ship (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
if cursorImage, err = ebiten.NewImage(4, 4, ebiten.FilterNearest); err != nil {
log.Fatal(err)
}
cursorImage.Fill(color.White)
var speed, scale, width, height int
flag.IntVar(&speed, "speed", 15, "simulation steps per second")
flag.IntVar(&scale, "scale", 16, "pixel scale factor")
flag.IntVar(&width, "width", 64, "width of the simulation")
flag.IntVar(&height, "height", 64, "height of the simulation")
flag.Parse()
flag.Args()
cursorPosition = image.Point{width / 2, height / 2}
simulationTimer = time.Tick(time.Second / time.Duration(speed))
if flag.NArg() == 1 {
inputFileName := flag.Arg(0)
in, err := os.Open(inputFileName)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
gifImage, err := gif.DecodeAll(in)
if err != nil {
log.Fatal(err)
}
simulationImage = gifImage.Image[0]
simulationImage.Palette[0] = color.Transparent
} else {
p := color.Palette{
color.Black,
color.RGBA{0x88, 0, 0, 0xFF},
color.RGBA{0xFF, 0, 0, 0xFF},
color.RGBA{0xFF, 0x22, 0, 0xFF},
color.RGBA{0xFF, 0x44, 0, 0xFF},
color.RGBA{0xFF, 0x66, 0, 0xFF},
color.RGBA{0xFF, 0x88, 0, 0xFF},
color.RGBA{0xFF, 0xAA, 0, 0xFF},
}
simulationImage = image.NewPaletted(image.Rect(0, 0, width, height), p)
}
reloadSimulation()
if err := ebiten.Run(update, simulationImage.Bounds().Dx(), simulationImage.Bounds().Dy(), scale, "Wired Logic"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
ebitenImage, _, err = ebitenutil.NewImageFromFile("images/ebiten.png", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
tmpRenderTarget, err = ebiten.NewImage(screenWidth, screenHeight, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
//update := update
//f, _ := os.Create("out.gif")
//update = ebitenutil.RecordScreenAsGIF(update, f, 100)
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Alpha Blending (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
flag.Parse()
if *cpuProfile != "" {
f, err := os.Create(*cpuProfile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
game := blocks.NewGame()
update := game.Update
if err := ebiten.Run(update, blocks.ScreenWidth, blocks.ScreenHeight, 2, "Blocks (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
s, err := NewSprite("images/actor37_0.png")
if err != nil {
log.Fatal(err)
}
w, h := s.Size()
s.SetScale(0.5, 0.5)
x := (screenWidth / 2) - (float64(w) / 2 * s.ScaleX()) + (screenWidth / 3)
y := 0 + (float64(h) / 3 * s.ScaleY())
s.SetPosition(x, y)
if err := Attach(s); err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Ebiten Demo"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
ebitenImage, _, err = common.AssetImage("ebiten.png", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
ebitenImageWidth, ebitenImageHeight = ebitenImage.Size()
for i := range sprites.sprites {
w, h := ebitenImage.Size()
x, y := rand.Intn(screenWidth-w), rand.Intn(screenHeight-h)
vx, vy := 2*rand.Intn(2)-1, 2*rand.Intn(2)-1
sprites.sprites[i] = &Sprite{
image: ebitenImage,
x: x,
y: y,
vx: vx,
vy: vy,
}
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Sprites (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
var err error
ebitenImage, _, err = ebitenutil.NewImageFromFile("_resources/images/ebiten.png", ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
ebitenImageWidth, ebitenImageHeight = ebitenImage.Size()
for i := range sprites.sprites {
w, h := ebitenImage.Size()
x, y := rand.Intn(screenWidth-w), rand.Intn(screenHeight-h)
vx, vy := 2*rand.Intn(2)-1, 2*rand.Intn(2)-1
sprites.sprites[i] = &Sprite{
imageWidth: w,
imageHeight: h,
x: x,
y: y,
vx: vx,
vy: vy,
}
}
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Sprites (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "PCM (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}
func main() {
wavF, err := ebitenutil.OpenFile("_resources/audio/jab.wav")
if err != nil {
log.Fatal(err)
}
oggF, err := ebitenutil.OpenFile("_resources/audio/game.ogg")
if err != nil {
log.Fatal(err)
}
// This sample rate doesn't match with wav/ogg's sample rate,
// but decoders adjust them.
const sampleRate = 48000
const bytesPerSample = 4 // TODO: This should be defined in audio package
audioContext, err = audio.NewContext(sampleRate)
if err != nil {
log.Fatal(err)
}
go func() {
s, err := wav.Decode(audioContext, wavF)
if err != nil {
log.Fatal(err)
return
}
b, err := ioutil.ReadAll(s)
if err != nil {
log.Fatal(err)
return
}
seCh <- b
close(seCh)
}()
go func() {
s, err := vorbis.Decode(audioContext, oggF)
if err != nil {
log.Fatal(err)
return
}
p, err := audio.NewPlayer(audioContext, s)
if err != nil {
log.Fatal(err)
return
}
musicCh <- &Player{
audioPlayer: p,
total: time.Second * time.Duration(s.Size()) / bytesPerSample / sampleRate,
}
close(musicCh)
// TODO: Is this goroutine-safe?
if err := p.Play(); err != nil {
log.Fatal(err)
return
}
}()
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Audio (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
if musicPlayer != nil {
if err := musicPlayer.close(); err != nil {
log.Fatal(err)
}
}
}
func main() {
noiseImage = image.NewRGBA(image.Rect(0, 0, screenWidth, screenHeight))
if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Noise (Ebiten Demo)"); err != nil {
log.Fatal(err)
}
}