Exemple #1
0
func main() {
	log.SetFlags(0)

	var resourcePath string
	{
		GOPATH := os.Getenv("GOPATH")
		if GOPATH == "" {
			log.Fatal("No such environment variable: GOPATH")
		}
		for _, gopath := range strings.Split(GOPATH, ":") {
			a := gopath + "/src/github.com/0xe2-0x9a-0x9b/Go-SDL/sdl-test"
			_, err := os.Stat(a)
			if err == nil {
				resourcePath = a
				break
			}
		}
		if resourcePath == "" {
			log.Fatal("Failed to find resource directory")
		}
	}

	var joy *sdl.Joystick
	if sdl.Init(sdl.INIT_EVERYTHING) != 0 {
		log.Fatal(sdl.GetError())
	}

	if ttf.Init() != 0 {
		log.Fatal(sdl.GetError())
	}

	if sdl.NumJoysticks() > 0 {
		// Open joystick
		joy = sdl.JoystickOpen(0)

		if joy != nil {
			println("Opened Joystick 0")
			println("Name: ", sdl.JoystickName(0))
			println("Number of Axes: ", joy.NumAxes())
			println("Number of Buttons: ", joy.NumButtons())
			println("Number of Balls: ", joy.NumBalls())
		} else {
			println("Couldn't open Joystick!")
		}
	}

	if mixer.OpenAudio(mixer.DEFAULT_FREQUENCY, mixer.DEFAULT_FORMAT,
		mixer.DEFAULT_CHANNELS, 4096) != 0 {
		log.Fatal(sdl.GetError())
	}

	var screen = sdl.SetVideoMode(640, 480, 32, sdl.RESIZABLE)

	if screen == nil {
		log.Fatal(sdl.GetError())
	}

	var video_info = sdl.GetVideoInfo()

	println("HW_available = ", video_info.HW_available)
	println("WM_available = ", video_info.WM_available)
	println("Video_mem = ", video_info.Video_mem, "kb")

	sdl.EnableUNICODE(1)

	sdl.WM_SetCaption("Go-SDL SDL Test", "")

	image := sdl.Load(resourcePath + "/test.png")

	if image == nil {
		log.Fatal(sdl.GetError())
	}

	sdl.WM_SetIcon(image, nil)

	running := true

	font := ttf.OpenFont(resourcePath+"/Fontin Sans.otf", 72)

	if font == nil {
		log.Fatal(sdl.GetError())
	}

	font.SetStyle(ttf.STYLE_UNDERLINE)
	white := sdl.Color{255, 255, 255, 0}
	text := ttf.RenderText_Blended(font, "Test (with music)", white)
	music := mixer.LoadMUS(resourcePath + "/test.ogg")
	sound := mixer.LoadWAV(resourcePath + "/sound.ogg")

	if music == nil || sound == nil {
		log.Fatal(sdl.GetError())
	}

	music.PlayMusic(-1)

	if sdl.GetKeyName(270) != "[+]" {
		log.Fatal("GetKeyName broken")
	}

	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

	// Note: The following SDL code is highly ineffective.
	//       It is eating too much CPU. If you intend to use Go-SDL,
	//       you should to do better than this.

	for running {
		select {
		case <-ticker.C:
			screen.FillRect(nil, 0x302019)
			screen.Blit(&sdl.Rect{0, 0, 0, 0}, text, nil)

		loop:
			for {
				select {
				case p := <-draw:
					screen.Blit(&sdl.Rect{int16(p.x), int16(p.y), 0, 0}, image, nil)

				case <-out:
				default:
					break loop
				}
			}

			var p Point
			sdl.GetMouseState(&p.x, &p.y)
			worm_in <- p

			screen.Flip()

		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 Which: %02x State: %02x Pad: %02x\n", e.Type, e.Which, 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)
					sound.PlayChannel(-1, 0)
				}

			case sdl.JoyAxisEvent:
				println("Joystick Axis Event ->", "Type", e.Type, "Axis:", e.Axis, " Value:", e.Value, "Which:", e.Which)

			case sdl.JoyButtonEvent:
				println("Joystick Button Event ->", e.Button)
				println("State of button", e.Button, "->", joy.GetButton(int(e.Button)))

			case sdl.ResizeEvent:
				println("resize screen ", e.W, e.H)

				screen = sdl.SetVideoMode(int(e.W), int(e.H), 32, sdl.RESIZABLE)

				if screen == nil {
					log.Fatal(sdl.GetError())
				}
			}
		}
	}

	// Close if opened
	if sdl.JoystickOpened(0) > 0 {
		joy.Close()
	}

	image.Free()
	music.Free()
	font.Close()

	ttf.Quit()
	sdl.Quit()
}
Exemple #2
0
func main() {
	runtime.LockOSThread()

	if sdl.Init(sdl.INIT_EVERYTHING) != 0 {
		log.Fatal(sdl.GetError())
	}
	var screen = sdl.SetVideoMode(screenWidth, screenHeight, 32, sdl.OPENGL|sdl.HWSURFACE|sdl.GL_DOUBLEBUFFER|sdl.FULLSCREEN)
	if screen == nil {
		log.Fatal(sdl.GetError())
	}
	sdl.WM_SetCaption("Lecture Hall Games", "")
	sdl.EnableUNICODE(1)
	if gl.Init() != 0 {
		log.Fatal("could not initialize OpenGL")
	}
	gl.Viewport(0, 0, int(screen.W), int(screen.H))
	gl.ClearColor(1, 1, 1, 0)
	gl.Clear(gl.COLOR_BUFFER_BIT)
	gl.MatrixMode(gl.PROJECTION)
	gl.LoadIdentity()
	gl.Ortho(0, float64(screen.W), float64(screen.H), 0, -1.0, 1.0)
	gl.Disable(gl.LIGHTING)
	gl.Disable(gl.DEPTH_TEST)
	gl.TexEnvi(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)

	if mixer.OpenAudio(mixer.DEFAULT_FREQUENCY, mixer.DEFAULT_FORMAT,
		mixer.DEFAULT_CHANNELS, 4096) != 0 {
		log.Fatal(sdl.GetError())
	}

	if ttf.Init() != 0 {
		log.Fatal(sdl.GetError())
	}

	if p, err := build.Default.Import(basePkg, "", build.FindOnly); err == nil {
		os.Chdir(p.Dir)
	}

	var err error

	rand.Seed(time.Now().UnixNano())
	levelDir := fmt.Sprintf("data/levels/demolevel%d", 3+rand.Intn(numberLevels))
	//carsDir := fmt.Sprintf(" data/cars/car%d/", 1+rand.Intn(numberCars))
	if game, err = NewRacer(levelDir); err != nil {
		log.Fatal(err)
	}

	go func() {
		listen, err := net.Listen("tcp", ":8001")
		if err != nil {
			log.Fatal(err)
		}
		for {
			conn, err := listen.Accept()
			if err != nil {
				log.Println(err)
				continue
			}
			go handleConnection(conn)
		}
	}()

	running := true
	last := time.Now()
	for running {
		select {
		case event := <-sdl.Events:
			switch e := event.(type) {
			case sdl.QuitEvent:
				running = false
			case sdl.ResizeEvent:
				screen = sdl.SetVideoMode(int(e.W), int(e.H), 32, sdl.RESIZABLE)
			case sdl.KeyboardEvent:
				if e.Type == sdl.KEYDOWN {
					if e.Keysym.Sym == sdl.K_ESCAPE {
						running = false
					} else {
						game.KeyPressed(e.Keysym)
					}
				}
			}
		default:
		}

		current := time.Now()
		t := current.Sub(last)
		last = current

		mu.Lock()
		game.Update(t)
		game.Render(screen)
		mu.Unlock()

		sdl.GL_SwapBuffers()
	}

	sdl.Quit()
}