func (dmg *DMG) Run(file string, width, height int) {
	sdl.Init(sdl.INIT_VIDEO)
	defer sdl.Quit()

	dmg.init(file, width, height)
	dmg.exec()
}

func main() {
	if err := sdl.Init(sdl.INIT_AUDIO); err != nil {
		log.Println(err)
		return
	}

	if err := mix.Init(mix.INIT_MP3); err != nil {
		log.Println(err)
		return
	}
	defer sdl.Quit()
	defer mix.Quit()
	defer mix.CloseAudio()

	if err := mix.OpenAudio(22050, mix.DEFAULT_FORMAT, 2, 4096); err != nil {
		log.Println(err)
		return
	}

	if music, err := mix.LoadMUS("test.mp3"); err != nil {
		log.Println(err)
	} else if err = music.Play(1); err != nil {
		log.Println(err)
	} else {
		sdl.Delay(5000)
		music.Free()
	}
}

/*
Destroy the controller object.
*/
func (c *Controller) Destroy() {
	c.window.Destroy()
	// TODO can I call this anywhere? is this... ok?
	sdl.Quit()
	// MUST unlock OS thread
	runtime.UnlockOSThread()
}

func (gui *Gui) Start() {
	window, err := sdl.CreateWindow(
		"nice life",
		sdl.WINDOWPOS_UNDEFINED,
		sdl.WINDOWPOS_UNDEFINED,
		gui.cam.width,
		gui.cam.height,
		sdl.WINDOW_SHOWN|sdl.WINDOW_RESIZABLE)

	if err != nil {
		panic(err)
	}

	surface, err := window.GetSurface()
	if err != nil {
		panic(err)
	}

	gui.sdlWindow = window
	gui.sdlSurface = surface

	go gui.handleInput()

	gui.mainLoop()
	sdl.Quit()
}

func (d *Display) Close() {
	if d.renderer != nil {
		d.renderer.Destroy()
	}

	if d.window != nil {
		d.window.Destroy()
	}

	sdl.Quit()
}

func main() {
	var winTitle string = "Go-SDL2 + Go-GL"
	var winWidth, winHeight int = 800, 600
	var window *sdl.Window
	var context sdl.GLContext
	var event sdl.Event
	var running bool
	var err error

	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()

	if err = gl.Init(); err != nil {
		panic(err)
	}

	window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
		winWidth, winHeight, sdl.WINDOW_OPENGL)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()
	context, err = sdl.GL_CreateContext(window)
	if err != nil {
		panic(err)
	}
	defer sdl.GL_DeleteContext(context)

	gl.Enable(gl.DEPTH_TEST)
	gl.ClearColor(0.2, 0.2, 0.3, 1.0)
	gl.ClearDepth(1)
	gl.DepthFunc(gl.LEQUAL)
	gl.Viewport(0, 0, int32(winWidth), int32(winHeight))

	running = true
	for running {
		for event = sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
			switch t := event.(type) {
			case *sdl.QuitEvent:
				running = false
			case *sdl.MouseMotionEvent:
				fmt.Printf("[%d ms] MouseMotion\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n", t.Timestamp, t.Which, t.X, t.Y, t.XRel, t.YRel)
			}
		}
		drawgl()
		sdl.GL_SwapWindow(window)
	}
}

func main() {
	flag.Parse()
	//	go doesMyCodeWork()
	//	go doesMyCodeWork2()

	var x, y int
	if len(os.Args) < 3 {
		fmt.Println("No size was specified, using defaults")
		x = int(640 * 1.5)
		y = int(480 * 1.5)
	} else {
		var err error
		x, err = strconv.Atoi(os.Args[1])
		if err != nil {
			fmt.Println("Could not parse " + os.Args[1] + " to int!")
			return
		}
		y, err = strconv.Atoi(os.Args[2])
		if err != nil {
			fmt.Println("Could not parse " + os.Args[2] + " to int!")
			return
		}
	}
	window, err := sdl.CreateWindow("Campus Fighter I", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, x, y, sdl.WINDOWPOS_UNDEFINED)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()
	//sdl.ShowCursor(0)
	window.UpdateSurface()

	renderer, err := sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED)
	if err != nil {
		panic(err)
	}
	surface, err := window.GetSurface()
	if err != nil {
		panic(err)
	}

	controlManager := inputManager.GetControlManager()

	updateFunctionsToStartWith := make([]inputManager.Update, 1)
	updateFunctionsToStartWith[0] = menus.CreateMenus(window, surface, renderer, &controlManager)
	inputManager.StateMachine(controlManager.ReadInput(), updateFunctionsToStartWith)

	sdl.Quit()
}

func main() {
	sdlInit()

	gm := gamemanager.GGameManager
	gc := gamecontext.GContext

	createMainWindow()
	defer gc.MainWindow.Destroy()

	intro := &introstate.IntroState{}
	play := &playstate.PlayState{}

	gm.RegisterMode(gamemanager.GameModeIntro, intro)
	gm.RegisterMode(gamemanager.GameModePlay, play)

	done := false

	// Keep handy for use in the loop
	mainWindow := gc.MainWindow
	mainWindowSurface := gc.MainSurface

	gm.SetMode(gamemanager.GameModeIntro)

	gm.SetEventMode(gamemanager.GameManagerEventDriven)

	for done == false {
		event := gm.GetNextEvent()
		for ; event != nil; event = sdl.PollEvent() {
			done = done || gm.HandleEvent(&event)

			switch event := event.(type) {
			case *sdl.WindowEvent:
				//fmt.Printf("Window: %#v\n", event)
				//fmt.Printf("Event: %t %t\n", event.Event, sdl.WINDOWEVENT_CLOSE)
				if event.Event == sdl.WINDOWEVENT_CLOSE {
					done = done || true
				}
			}
		}

		gm.Render(mainWindowSurface)
		mainWindow.UpdateSurface()

		gm.DelayToNextFrame()
	}

	sdl.Quit()
}

// Destroys SDL and releases the memory
func (e *Engine) Destroy() {
	for _, v := range e.StateText {
		v.Texture.Destroy()
	}

	e.Sprite.Destroy()
	e.Font.Close()
	e.Music.Free()
	e.Sound.Free()
	e.Renderer.Destroy()
	e.Window.Destroy()

	ttf.Quit()
	mix.CloseAudio()
	mix.Quit()
	sdl.Quit()
}

func main() {
	if err := sdl.Init(sdl.INIT_AUDIO); err != nil {
		log.Println(err)
		return
	}
	defer sdl.Quit()

	spec := &sdl.AudioSpec{
		Freq:     sampleHz,
		Format:   sdl.AUDIO_U8,
		Channels: 2,
		Samples:  sampleHz,
		Callback: sdl.AudioCallback(C.SineWave),
	}
	sdl.OpenAudio(spec, nil)
	sdl.PauseAudio(false)
	time.Sleep(1 * time.Second)
}

// The programs main function
func main() {
	// ---- This is the start of Owen's graphics setup code ----

	// First we have to initalise the SDL library, before we can use it
	sdl.Init(sdl.INIT_EVERYTHING)
	// defer is a go keyword and a special feature.
	// This means that go will automatically call the function sdl.Quit() before
	// the program exits for us. We don't have to remember to put this at the end!
	defer sdl.Quit()

	// if you want to change these try 800 for the width and 600 for the height
	windowWidth = 1024
	windowHeight = 768

	// Now we have to create the window we want to use.
	// We need to tell the SDL library how big to make the window of the correct
	// size - that's what the bit in the brackets does
	window = createWindow(windowWidth, windowHeight)
	// automatically destroy the window when the program finishes
	defer window.Destroy()
	// Now we have a window we need to create a renderer so we can draw into
	// it. In this case we want to use the first graphics card that supports faster
	// drawing
	renderer = createRenderer(window)
	// automatically destroy the renderer when the program exits.
	defer renderer.Destroy()

	// Set a black i.e. RGBA (0,0,0,0) background colour and clear the window
	renderer.SetDrawColor(0, 0, 0, 0)
	renderer.Clear()
	// ---- This is the end of Owen's graphics setup code ----

	// defer any cleanup actions
	defer cleanup()
	// initialise the games variables.
	initialise()
	// render everything initially so that we can see the game before it starts
	render()
	// now start the main game loop of the game.
	gameMainLoop()
}

func main() {
	var (
		err     error
		window  *sdl.Window
		context sdl.GLContext
	)

	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()

	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MAJOR_VERSION, 3)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MINOR_VERSION, 2)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_CORE)

	window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_OPENGL)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()

	context, err = sdl.GL_CreateContext(window)
	if err != nil {
		panic(err)
	}
	defer sdl.GL_DeleteContext(context)

	if err = sdl.GL_MakeCurrent(window, context); err != nil {
		panic(err)
	}

	if err = gl.Init(); err != nil {
		panic(err)
	}

	printGLInfo()
	cameraMatrixUniform := setupGL()
	windowLoop(window, cameraMatrixUniform)
}

func main() {
	var (
		err     error
		window  *sdl.Window
		context sdl.GLContext
	)

	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()

	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_COMPATIBILITY)

	window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_OPENGL)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()

	context, err = sdl.GL_CreateContext(window)
	if err != nil {
		panic(err)
	}
	defer sdl.GL_DeleteContext(context)

	if err = sdl.GL_MakeCurrent(window, context); err != nil {
		panic(err)
	}

	if err = gl.Init(); err != nil {
		panic(err)
	}

	sdl.GL_SetSwapInterval(1)

	printGLInfo()
	setupGL()
	windowLoop(window)
}

func TestTexture(t *testing.T) {
	if sdl.Init(sdl.INIT_EVERYTHING) != 0 {
		panic(sdl.GetError())
	}
	defer sdl.Quit()

	window := sdl.CreateWindow("test", 0, 0, 320, 200, sdl.WINDOW_HIDDEN|sdl.WINDOW_OPENGL)
	defer window.Destroy()

	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_ES)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MAJOR_VERSION, 2)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MINOR_VERSION, 0)

	glctx := sdl.GL_CreateContext(window)
	defer sdl.GL_DeleteContext(glctx)

	tex := gl.CreateTexture()
	gl.BindTexture(gl.TEXTURE_2D, tex)
	if !gl.IsTexture(tex) {
		t.Error(tex, "is not a texture")
	}
}

func main() {
	sdl.Init(sdl.INIT_EVERYTHING)

	window, err := sdl.CreateWindow("test", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
		800, 600, sdl.WINDOW_SHOWN)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()

	surface, err := window.GetSurface()
	if err != nil {
		panic(err)
	}

	rect := sdl.Rect{0, 0, 200, 200}
	surface.FillRect(&rect, 0xffff0000)
	window.UpdateSurface()

	sdl.Delay(1000)
	sdl.Quit()
}

func main() {
	sdl.Init(sdl.INIT_VIDEO)
	defer sdl.Quit()
	window, err := sdl.CreateWindow("Tank", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, windowWidth, windowHeight, 0)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()

mainloop:
	for {
		for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
			switch event.(type) {
			case *sdl.QuitEvent:
				break mainloop
			}
		}
		windowSurface, _ := window.GetSurface()
		windowSurface.FillRect(nil, sdl.MapRGB(windowSurface.Format, 0, 0, 0))

		window.UpdateSurface()
		sdl.Delay(1000)
	}
}

func main() {
	fmt.Print()

	sdl.SetHint(sdl.HINT_RENDER_VSYNC, "1")

	check(sdl.Init(sdl.INIT_EVERYTHING))
	defer sdl.Quit()

	window, r, err := sdl.CreateWindowAndRenderer(
		640, 480,
		sdl.WINDOW_RESIZABLE,
	)
	check(err)
	renderer = r
	defer renderer.Destroy()
	defer window.Destroy()
	window.SetTitle("Gophette's Adventures - Level Editor")
	window.SetPosition(50, 50)
	window.SetSize(1800, 900)
	window.SetFullscreen(sdl.WINDOW_FULLSCREEN_DESKTOP)
	renderer.SetDrawBlendMode(sdl.BLENDMODE_BLEND)

	if len(LevelImages) == 0 {
		for i, id := range []string{
			"grass left",
			"grass right",
			"grass center 1",
			"grass center 2",
			"grass center 3",
			"small tree",
		} {
			images = append(images, image{id, loadImage(id), 0, i * 50})
		}
	} else {
		for i := range LevelImages {
			id := LevelImages[i].ID
			x, y := LevelImages[i].X, LevelImages[i].Y
			img := loadImage(id)
			images = append(images, image{id, img, x, y})
		}
	}

	leftDown := false
	middleDown := false
	rightDown := false
	selectedImage := -1
	selectedObject := -1
	var lastX, lastY int

	moveImage := func(dx, dy int) {
		if selectedImage != -1 {
			images[selectedImage].x += dx
			images[selectedImage].y += dy
		}
	}

	stretchObject := func(dx, dy int) {
		if selectedObject != -1 {
			if sdl.GetKeyboardState()[sdl.SCANCODE_LCTRL] != 0 {
				dx *= 20
				dy *= 20
			}
			obj := &LevelObjects[selectedObject]
			obj.W += dx
			obj.H += dy
		}
	}

	running := true
	for running {
		for e := sdl.PollEvent(); e != nil; e = sdl.PollEvent() {
			switch event := e.(type) {
			case *sdl.QuitEvent:
				running = false
			case *sdl.MouseButtonEvent:
				if event.Button == sdl.BUTTON_LEFT {
					leftDown = event.State == sdl.PRESSED
					if !leftDown {
						draggingImage = false
						draggingObject = false
					} else {
						selectedObject = -1
						selectedImage = -1
						for i := range images {
							if images[i].contains(
								int(event.X)-cameraX,
								int(event.Y)-cameraY,
							) {
								draggingImage = true
								selectedImage = i
							}
						}

						if selectedImage == -1 {
							for i := range LevelObjects {
								if contains(LevelObjects[i],
									int(event.X)-cameraX,
									int(event.Y)-cameraY,
								) {
									draggingObject = true
//.........这里部分代码省略.........

func (w Window) Close() {
	sdl.GL_DeleteContext(w.contextSDL)
	w.windowSDL.Destroy()
	sdl.Quit()
}

func main() {
	var window *sdl.Window
	var context sdl.GLContext
	var event sdl.Event
	var running bool
	var err error
	runtime.LockOSThread()
	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()
	window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED,
		sdl.WINDOWPOS_UNDEFINED,
		winWidth, winHeight, sdl.WINDOW_OPENGL)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()
	context, err = sdl.GL_CreateContext(window)
	if err != nil {
		panic(err)
	}
	defer sdl.GL_DeleteContext(context)

	gl.Init()
	gl.Viewport(0, 0, gl.Sizei(winWidth), gl.Sizei(winHeight))
	// OPENGL FLAGS
	gl.ClearColor(0.0, 0.1, 0.0, 1.0)
	gl.Enable(gl.DEPTH_TEST)
	gl.DepthFunc(gl.LESS)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

	// VERTEX BUFFER
	var vertexbuffer gl.Uint
	gl.GenBuffers(1, &vertexbuffer)
	gl.BindBuffer(gl.ARRAY_BUFFER, vertexbuffer)
	gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(len(triangle_vertices)*4), gl.Pointer(&triangle_vertices[0]), gl.STATIC_DRAW)

	// COLOUR BUFFER
	var colourbuffer gl.Uint
	gl.GenBuffers(1, &colourbuffer)
	gl.BindBuffer(gl.ARRAY_BUFFER, colourbuffer)
	gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(len(triangle_colours)*4), gl.Pointer(&triangle_colours[0]), gl.STATIC_DRAW)

	// GUESS WHAT
	program := createprogram()

	// VERTEX ARRAY
	var VertexArrayID gl.Uint
	gl.GenVertexArrays(1, &VertexArrayID)
	gl.BindVertexArray(VertexArrayID)
	gl.EnableVertexAttribArray(0)
	gl.BindBuffer(gl.ARRAY_BUFFER, vertexbuffer)
	gl.VertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, 0, nil)

	// VERTEX ARRAY HOOK COLOURS
	gl.EnableVertexAttribArray(1)
	gl.BindBuffer(gl.ARRAY_BUFFER, colourbuffer)
	gl.VertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, 0, nil)

	//UNIFORM HOOK
	unistring := gl.GLString("scaleMove")
	UniScale = gl.GetUniformLocation(program, unistring)
	fmt.Printf("Uniform Link: %v\n", UniScale+1)

	gl.UseProgram(program)

	running = true
	for running {
		for event = sdl.PollEvent(); event != nil; event =
			sdl.PollEvent() {
			switch t := event.(type) {
			case *sdl.QuitEvent:
				running = false
			case *sdl.MouseMotionEvent:

				xrot = float32(t.Y) / 2
				yrot = float32(t.X) / 2
				fmt.Printf("[%dms]MouseMotion\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n", t.Timestamp, t.Which, t.X, t.Y, t.XRel, t.YRel)
			}
		}
		drawgl()
		sdl.GL_SwapWindow(window)
	}
}

func main() {
	runtime.LockOSThread()

	flag.Parse()
	if *cpuprofile != "" {
		f, err := os.Create(*cpuprofile)
		if err != nil {
			log.Fatal(err)
		}
		pprof.StartCPUProfile(f)
		defer pprof.StopCPUProfile()
	}

	if err := sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()

	sdl.GL_SetAttribute(sdl.GL_MULTISAMPLESAMPLES, 4)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MAJOR_VERSION, 3)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MINOR_VERSION, 3)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_CORE)
	sdl.GL_SetAttribute(sdl.GL_DOUBLEBUFFER, 1)
	sdl.GL_SetAttribute(sdl.GL_DEPTH_SIZE, 24)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_FLAGS, sdl.GL_CONTEXT_DEBUG_FLAG|sdl.GL_CONTEXT_FORWARD_COMPATIBLE_FLAG)

	window, err := sdl.CreateWindow("TOW", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, 1024, 768, sdl.WINDOW_OPENGL|sdl.WINDOW_SHOWN|sdl.WINDOW_RESIZABLE)
	if err != nil {
		log.Fatal("can't create window", err)
	}
	defer window.Destroy()

	//defer renderer.Destroy()

	glcontext, err := sdl.GL_CreateContext(window)
	if err != nil {
		log.Fatal("can't create context", err)
	}
	defer sdl.GL_DeleteContext(glcontext)
	sdl.GL_MakeCurrent(window, glcontext)

	//err := gl.GlewInit()
	//fmt.Println(gl.GlewGetErrorString(err))
	//glew init
	gl.Init()
	sdl.GL_SetSwapInterval(1)

	fmt.Println("glVersion", gl.GetString(gl.VERSION))

	tw.Init(tw.OPENGL_CORE, nil)
	defer tw.Terminate()

	gl.GetError() // Ignore error
	debugContext.InitDebugContext()

	world := generation.GenerateWorld(64, 64, 2)
	gs := gamestate.NewGameState(window, world)
	defer gs.Delete()
	worldRenderer := rendering.NewWorldRenderer(window, gs.World)
	defer worldRenderer.Delete()

	gs.Bar.AddButton("screen shot", worldRenderer.ScreenShot, "")

	MainLoop(gs, worldRenderer)

	if *memprofile != "" {
		f, err := os.Create(*memprofile)
		if err != nil {
			panic(err)
		}
		pprof.WriteHeapProfile(f)
		f.Close()
		return
	}
}