func initSound() error {
if code := sdl.Init(sdl.INIT_AUDIO); code == -1 {
return fmt.Errorf("Could not init audio: %v", sdl.GetError())
}
var (
freq int = mixer.DEFAULT_FREQUENCY
format uint16 = mixer.DEFAULT_FORMAT
channels int = mixer.DEFAULT_CHANNELS
)
if mixer.OpenAudio(freq, format, channels, 4096) != 0 {
return fmt.Errorf("Could not init mixer: %v", sdl.GetError())
}
return nil
}
func main() {
if sdl.Init(sdl.INIT_EVERYTHING) != 0 {
log.Fatal(sdl.GetError())
}
if mixer.OpenAudio(mixer.DEFAULT_FREQUENCY, mixer.DEFAULT_FORMAT,
mixer.DEFAULT_CHANNELS, 4096) != 0 {
log.Fatal(sdl.GetError())
}
window, rend := sdl.CreateWindowAndRenderer(640, 480, sdl.WINDOW_SHOWN)
if window == nil {
log.Println("nil window")
log.Fatal(sdl.GetError())
}
if rend == nil {
log.Println("nil rend")
log.Fatal(sdl.GetError())
}
window.SetTitle("First SDL2 Window")
image := sdl.Load("./test.png")
if image == nil {
log.Println("nil image")
log.Fatal(sdl.GetError())
}
window.SetIcon(image)
tex := sdl.CreateTextureFromSurface(rend, image)
running := true
worm_in := make(chan Point)
draw := make(chan Point, 64)
var out chan Point
var in chan Point
out = worm_in
in = out
out = make(chan Point)
go worm(in, out, draw)
// ticker := time.NewTicker(time.Second / 50) // 50 Hz
rend.SetDrawColor(sdl.Color{0x30, 0x20, 0x19, 0xFF, 0x00})
rend.FillRect(nil)
rend.Copy(tex, nil, nil)
rend.Present()
window.ShowSimpleMessageBox(sdl.MESSAGEBOX_INFORMATION, "Test Message", "SDL2 supports message boxes!")
for running {
select {
/*
case <-ticker.C:
rend.SetDrawColor(0x30, 0x20, 0x19, 0xFF)
rend.FillRect(nil)
if sdl.GetError() != "" {
log.Fatalf(sdl.GetError())
}
loop:
for {
select {
case p := <-draw:
rend.Clear()
rend.Copy(tex, &sdl.Rect{int16(p.x), int16(p.y), 0, 0}, nil)
case <-out:
default:
break loop
}
}
var p Point
sdl.GetMouseState(&p.x, &p.y)
worm_in <- p
rend.Present()
*/
case _event := <-sdl.Events:
switch e := _event.(type) {
case sdl.QuitEvent:
running = false
case sdl.KeyboardEvent:
println("")
println(e.Keysym.Sym, ": ", sdl.GetKeyName(sdl.Key(e.Keysym.Sym)))
if e.Keysym.Sym == sdl.K_ESCAPE {
running = false
}
fmt.Printf("%04x ", e.Type)
for i := 0; i < len(e.Pad0); i++ {
fmt.Printf("%02x ", e.Pad0[i])
}
println()
fmt.Printf("Type: %02x State: %02x Pad: %02x\n", e.Type, e.State, e.Pad0[0])
fmt.Printf("Scancode: %02x Sym: %08x Mod: %04x Unicode: %04x\n", e.Keysym.Scancode, e.Keysym.Sym, e.Keysym.Mod, e.Keysym.Unicode)
case sdl.MouseButtonEvent:
if e.Type == sdl.MOUSEBUTTONDOWN {
println("Click:", e.X, e.Y)
in = out
out = make(chan Point)
go worm(in, out, draw)
}
}
}
}
image.Free()
tex.Destroy()
rend.Destroy()
window.Destroy()
sdl.Quit()
}