Golang glfw.SetKeyCallback函数代码示例

// initGL initializes GLFW and OpenGL.
func initGL() error {
	err := glfw.Init()
	if err != nil {
		return err
	}

	err = glfw.OpenWindow(640, 480, 8, 8, 8, 8, 0, 0, glfw.Windowed)
	if err != nil {
		glfw.Terminate()
		return err
	}

	glfw.SetWindowTitle("go-gl/gltext: Bitmap font example")
	glfw.SetSwapInterval(1)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)

	errno := gl.Init()
	if errno != gl.NO_ERROR {
		str, err := glu.ErrorString(errno)
		if err != nil {
			return fmt.Errorf("Unknown openGL error: %d", errno)
		}
		return fmt.Errorf(str)
	}

	gl.Disable(gl.DEPTH_TEST)
	gl.Disable(gl.LIGHTING)
	gl.ClearColor(0.2, 0.2, 0.23, 0.0)
	return nil
}

func (i *IO) Init(title string, screenSize int, onCloseHandler func()) error {
	i.KeyHandler = new(KeyHandler)
	i.Display = new(Display)
	i.ScreenOutputChannel = make(chan *types.Screen)
	i.AudioOutputChannel = make(chan int)

	if err := glfw.Init(); err != nil {
		return err
	} else if err = i.Display.init(title, screenSize); err != nil {
		return err
	}

	i.KeyHandler.Init(DefaultControlScheme) //TODO: allow user to define controlscheme
	glfw.SetKeyCallback(func(key, state int) {
		if state == glfw.KeyPress {
			i.KeyHandler.KeyDown(key)
		} else {
			i.KeyHandler.KeyUp(key)
		}
	})

	glfw.SetWindowCloseCallback(func() int {
		glfw.CloseWindow()
		glfw.Terminate()
		onCloseHandler()
		return 0
	})

	return nil
}

// initGL initializes GLFW and OpenGL.
func initGL() error {
	err := glfw.Init()
	if err != nil {
		return err
	}

	err = glfw.OpenWindow(AtlasSize, AtlasSize, 8, 8, 8, 8, 0, 0, glfw.Windowed)
	if err != nil {
		glfw.Terminate()
		return err
	}

	glfw.SetWindowTitle("Texture atlas example")
	glfw.SetSwapInterval(1)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)

	gl.Init()
	if err = glh.CheckGLError(); err != nil {
		return err
	}

	gl.Disable(gl.DEPTH_TEST)
	gl.Disable(gl.LIGHTING)
	gl.Enable(gl.TEXTURE_2D)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.ClearColor(0.2, 0.2, 0.23, 1.0)
	return nil
}

func (i *IO) Init(title string, screenSize int, onCloseHandler func()) error {
	var err error

	err = glfw.Init()
	if err != nil {
		return err
	}

	err = i.Display.init(title, screenSize)
	if err != nil {
		return err
	}

	i.KeyHandler.Init(DefaultControlScheme) //TODO: allow user to define controlscheme
	glfw.SetKeyCallback(func(key, state int) {
		if state == glfw.KeyPress {
			i.KeyHandler.KeyDown(key)
		} else {
			i.KeyHandler.KeyUp(key)
		}
	})

	glfw.SetWindowCloseCallback(func() int {
		glfw.CloseWindow()
		glfw.Terminate()
		onCloseHandler()
		return 0
	})

	return nil
}

func KeyChan() chan DigiState {
	out := make(chan DigiState)
	glfw.SetKeyCallback(func(key, state int) {
		go func() { out <- DigiState{key, state} }()
	})
	return out
}

func main() {
	var err error
	if err = glfw.Init(); err != nil { ///初始化环境
		log.Fatalf("%v\n", err)
		return
	}
	defer glfw.Terminate() /// 销毁环境

	if err = glfw.OpenWindow(Width, Height, 8, 8, 8, 8, 0, 8, glfw.Windowed); err != nil { ///创建窗口
		log.Fatalf("%v\n", err)
		return
	}
	defer glfw.CloseWindow() /// 销毁窗口

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(Title)           ///设置标题
	glfw.SetWindowSizeCallback(onResize) /// 回调窗口变化
	glfw.SetKeyCallback(onKey)           ///回调按键

	initGL()

	running = true
	for running && glfw.WindowParam(glfw.Opened) == 1 {
		drawScene()
	}
}

func main() {
	var err error
	if err = glfw.Init(); err != nil {
		log.Fatalf("%v\n", err)
		return
	}

	defer glfw.Terminate()

	if err = glfw.OpenWindow(Width, Height, 8, 8, 8, 8, 0, 8, glfw.Windowed); err != nil {
		log.Fatalf("%v\n", err)
		return
	}

	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(Title)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)

	if err = initGL(); err != nil {
		log.Fatalf("%v\n", err)
		return
	}

	defer destroyGL()

	running = true
	for running && glfw.WindowParam(glfw.Opened) == 1 {
		drawScene()
	}
}

func Init() {

	runtime.LockOSThread()

	// Initialize GLFW

	var err error

	if err = glfw.Init(); err != nil {
		log.Fatalf("%v\n", err)
		return
	}

	err = glfw.OpenWindow(SCREEN_WIDTH, SCREEN_HEIGHT,
		0, 0, 0, 0, 0, 0, glfw.Windowed)

	if err != nil {
		log.Fatalf("%v\n", err)
		return
	}

	glfw.SetWindowTitle("Mandelbrot")
	glfw.SetSwapInterval(1)

	glfw.SetWindowSizeCallback(onResize)
	glfw.SetWindowCloseCallback(onClose)
	glfw.SetMouseButtonCallback(onMouseBtn)
	glfw.SetMouseWheelCallback(onMouseWheel)
	glfw.SetKeyCallback(onKey)
	glfw.SetCharCallback(onChar)

	// Initialize OpenGL
	gl.Disable(gl.DEPTH_TEST)
	gl.ClearColor(0, 0, 0, 0)
}

func main() {
	var err error
	if err = glfw.Init(); err != nil {
		log.Fatalf("%v\n", err)
		return
	}

	defer glfw.Terminate()

	if err = glfw.OpenWindow(640, 480, 8, 8, 8, 8, 0, 0, glfw.Windowed); err != nil {
		log.Fatalf("%v\n", err)
		return
	}

	defer glfw.CloseWindow()

	glfw.SetWindowTitle("Draw")
	glfw.SetSwapInterval(1)
	glfw.SetKeyCallback(onKey)
	glfw.SetMouseButtonCallback(onMouseBtn)
	glfw.SetWindowSizeCallback(onResize)

	running = true
	for running && glfw.WindowParam(glfw.Opened) == 1 {
		if mouse[0] != 0 {
			pen.lineTo(glfw.MousePos())
		} else {
			pen.moveTo(glfw.MousePos())
		}

		glfw.SwapBuffers()
	}
}

func StartEngine() {
	runtime.GOMAXPROCS(runtime.NumCPU())
	runtime.LockOSThread()
	fmt.Println("Enginge started!")
	var err error
	if err = glfw.Init(); err != nil {
		panic(err)
	}
	fmt.Println("GLFW Initialized!")

	glfw.OpenWindowHint(glfw.Accelerated, 1)

	if err = glfw.OpenWindow(Width, Height, 8, 8, 8, 8, 8, 8, glfw.Windowed); err != nil {
		panic(err)
	}

	glfw.SetSwapInterval(1) //0 to disable vsync, 1 to enable it
	glfw.SetWindowTitle(windowTitle)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(input.OnKey)
	glfw.SetCharCallback(input.OnChar)
	glfw.SetMouseButtonCallback(input.ButtonPress)
	glfw.SetMouseWheel(0)
	glfw.SetMouseWheelCallback(input.MouseWheelCallback)

	input.MouseWheelPosition = glfw.MouseWheel
	input.MousePosition = glfw.MousePos

	if err = initGL(); err != nil {
		panic(err)
	}
	fmt.Println("Opengl Initialized!")

	TextureMaterial = NewBasicMaterial(spriteVertexShader, spriteFragmentShader)
	err = TextureMaterial.Load()
	if err != nil {
		fmt.Println(err)
	}

	SDFMaterial = NewBasicMaterial(sdfVertexShader, sdfFragmentShader)
	err = SDFMaterial.Load()
	if err != nil {
		fmt.Println(err)
	}

	internalMaterial = NewBasicMaterial(spriteVertexShader, spriteFragmentShader)
	err = internalMaterial.Load()
	if err != nil {
		fmt.Println(err)
	}

	initDefaultPlane()
	glfw.SwapBuffers()

	gameTime = time.Time{}
	lastTime = time.Now()
	dl = glfw.Time()
}

func (rw *RenderWindow) Open() error {
	err := glfw.OpenWindow(int(rw.Width), int(rw.Height), 8, 8, 8, 8, 0, 0, glfw.Windowed)
	if err != nil {
		return err
	}
	glfw.SetWindowTitle(rw.Title)
	glfw.SetSwapInterval(2)
	glfw.SetKeyCallback(rw.onKey)
	glfw.SetWindowSizeCallback(rw.onResize)
	return nil
}

// Wait for an event to be passed into the Events channel and execute the
// corresponding registered actions.
func PullEvents() {
	glfw.SetKeyCallback(keyHandler)
	glfw.SetWindowCloseCallback(func() int { CloseWindow(); return 0 })
	for {
		e := <-Events
		for r, fn := range registered {
			// TODO change this (maps are supposed to work?)
			if e.Code() == r.Code() && e.State() == r.State() {
				fn()
			}
		}
	}
}

func (d *Device) Init() error {
	glfw.SetKeyCallback(func(key, state int) {
		var value cpu.Word

		if key >= glfw.KeySpecial {
			switch key {
			case glfw.KeyBackspace:
				value = 0x10
			case glfw.KeyEnter:
				value = 0x11
			case glfw.KeyInsert:
				value = 0x12
			case glfw.KeyDel:
				value = 0x13
			case glfw.KeyUp:
				value = 0x80
			case glfw.KeyDown:
				value = 0x81
			case glfw.KeyLeft:
				value = 0x82
			case glfw.KeyRight:
				value = 0x83
			case glfw.KeyLshift, glfw.KeyRshift:
				value = 0x90
			case glfw.KeyLctrl, glfw.KeyRctrl:
				value = 0x91
			default:
				return // Not supported.
			}
		} else {
			value = cpu.Word(key)
		}

		d.state[value] = cpu.Word(state)
		d.buf = append(d.buf, value)

		// Trigger an interrupt if enabled.
		if d.id != 0 {
			d.int(d.id)
		}
	})
	return nil
}

func InitGL(width, height int) {
	//enable vertical sync if the card supports it
	glfw.SetSwapInterval(1)

	gl.ShadeModel(gl.SMOOTH)

	gl.ClearColor(0.1, 0.1, 0.1, 1.0)

	gl.Enable(gl.TEXTURE_2D)
	gl.Enable(gl.CULL_FACE)
	gl.Enable(gl.DEPTH_TEST)
	gl.DepthFunc(gl.LEQUAL)

	gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)

	SetViewport(width, height)
	glfw.SetWindowSizeCallback(SetViewport)
	glfw.SetKeyCallback(OnKey)
}

// initGL initializes GLFW and OpenGL.
func initGL() error {
	err := glfw.Init()
	if err != nil {
		return err
	}

	glfw.OpenWindowHint(glfw.FsaaSamples, 4)
	glfw.OpenWindowHint(glfw.WindowNoResize, gl.TRUE)

	err = glfw.OpenWindow(512, 512, 8, 8, 8, 8, 32, 0, glfw.Windowed)
	if err != nil {
		glfw.Terminate()
		return err
	}

	glfw.SetWindowTitle("Meshbuffer 3D example")
	glfw.SetSwapInterval(1)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)

	gl.Init()
	if err = glh.CheckGLError(); err != nil {
		return err
	}

	gl.Enable(gl.DEPTH_TEST)
	gl.Enable(gl.MULTISAMPLE)
	gl.Disable(gl.LIGHTING)

	//gl.ClearColor(0.2, 0.2, 0.23, 1.0)
	gl.ClearColor(0, 0, 0, 1.0)
	gl.ShadeModel(gl.SMOOTH)
	gl.LineWidth(2)
	gl.ClearDepth(1)
	gl.DepthFunc(gl.LEQUAL)
	gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)
	gl.ColorMaterial(gl.FRONT_AND_BACK, gl.AMBIENT_AND_DIFFUSE)
	return nil
}