func main() { var window *sdl.Window var renderer *sdl.Renderer var event sdl.Event var running bool window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN) if window == nil { fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", sdl.GetError()) os.Exit(1) } renderer = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED) if renderer == nil { fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", sdl.GetError()) os.Exit(2) } var peepArray []sdl.Event = make([]sdl.Event, 5) running = true for running { sdl.PumpEvents() numEventsRetrieved := sdl.PeepEvents(peepArray, sdl.PEEKEVENT, sdl.FIRSTEVENT, sdl.LASTEVENT) if numEventsRetrieved < 0 { fmt.Printf("PeepEvents error: %s\n", sdl.GetError()) } else { for i := 0; i < numEventsRetrieved; i++ { fmt.Printf("Event Peeked Value: %v\n", peepArray[i]) // primitive printing of event } } 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\ttype:%d\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y, t.XRel, t.YRel) case *sdl.MouseButtonEvent: fmt.Printf("[%d ms] MouseButton\ttype:%d\tid:%d\tx:%d\ty:%d\tbutton:%d\tstate:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y, t.Button, t.State) case *sdl.MouseWheelEvent: fmt.Printf("[%d ms] MouseWheel\ttype:%d\tid:%d\tx:%d\ty:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y) case *sdl.KeyUpEvent: fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n", t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat) } } sdl.Delay(1000 / 30) } renderer.Destroy() window.Destroy() }
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 if 0 != sdl.Init(sdl.INIT_EVERYTHING) { panic(sdl.GetError()) } window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_OPENGL) if window == nil { panic(sdl.GetError()) } context = sdl.GL_CreateContext(window) if context == nil { panic(sdl.GetError()) } 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) } sdl.GL_DeleteContext(context) window.Destroy() sdl.Quit() }
func main() { var window *sdl.Window var renderer *sdl.Renderer var event sdl.Event var running bool window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN) if window == nil { fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", sdl.GetError()) os.Exit(1) } renderer = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED) if renderer == nil { fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", sdl.GetError()) os.Exit(2) } 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\ttype:%d\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y, t.XRel, t.YRel) case *sdl.MouseButtonEvent: fmt.Printf("[%d ms] MouseButton\ttype:%d\tid:%d\tx:%d\ty:%d\tbutton:%d\tstate:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y, t.Button, t.State) case *sdl.MouseWheelEvent: fmt.Printf("[%d ms] MouseWheel\ttype:%d\tid:%d\tx:%d\ty:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y) case *sdl.KeyUpEvent: fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n", t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat) } } } renderer.Destroy() window.Destroy() }
// Process the input, func (input *Input) Process() bool { var event sdl.Event for event = sdl.PollEvent(); event != nil; event = sdl.PollEvent() { switch t := event.(type) { case *sdl.QuitEvent: return true case *sdl.KeyDownEvent: if key, ok := sdlKeyMap[t.Keysym.Sym]; ok { input.SetKeyDown(key) } case *sdl.KeyUpEvent: if key, ok := sdlKeyMap[t.Keysym.Sym]; ok { input.SetKeyUp(key) } } } return false }
func handleEvents() { for { event := sdl.PollEvent() if event == nil { return } switch event := event.(type) { case *sdl.QuitEvent: log.Println("Quit!") running = false case *sdl.KeyDownEvent: handleKey(event.Keysym) } } }
func main() { var window *sdl.Window var context sdl.GLContext var event sdl.Event var running bool runtime.LockOSThread() if 0 != sdl.Init(sdl.INIT_EVERYTHING) { panic(sdl.GetError()) } window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_OPENGL) if window == nil { panic(sdl.GetError()) } context = sdl.GL_CreateContext(window) if context == nil { panic(sdl.GetError()) } 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) } sdl.GL_DeleteContext(context) window.Destroy() sdl.Quit() }
func main() { var window *sdl.Window var renderer *sdl.Renderer var event sdl.Event var running bool window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN) if window == nil { fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", sdl.GetError()) os.Exit(1) } renderer = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED) if renderer == nil { fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", sdl.GetError()) os.Exit(2) } running = true lastPushTime := sdl.GetTicks() for running { // Push a UserEvent every second if lastPushTime+pushTime < sdl.GetTicks() { lastPushTime = sdl.GetTicks() pEvent := &sdl.UserEvent{sdl.USEREVENT, sdl.GetTicks(), window.GetID(), 1331, nil, nil} retVal := sdl.PushEvent(pEvent) // Here's where the event is actually pushed switch retVal { case 1: fmt.Println("PushEvent returned success") case 0: fmt.Println("PushEvent returned filtered") case -1: fmt.Printf("PushEvent returned error: %s\n", sdl.GetError) } } 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\ttype:%d\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y, t.XRel, t.YRel) case *sdl.MouseButtonEvent: fmt.Printf("[%d ms] MouseButton\ttype:%d\tid:%d\tx:%d\ty:%d\tbutton:%d\tstate:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y, t.Button, t.State) case *sdl.MouseWheelEvent: fmt.Printf("[%d ms] MouseWheel\ttype:%d\tid:%d\tx:%d\ty:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y) case *sdl.KeyUpEvent: fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n", t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat) case *sdl.UserEvent: fmt.Printf("[%d ms] UserEvent\tcode:%d\n", t.Timestamp, t.Code) } } sdl.Delay(1000 / 30) } renderer.Destroy() window.Destroy() }
func main() { var window *sdl.Window var renderer *sdl.Renderer var event sdl.Event var running bool window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN) if window == nil { fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", sdl.GetError()) os.Exit(1) } renderer = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED) if renderer == nil { fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", sdl.GetError()) os.Exit(2) } var peepArray []sdl.Event = make([]sdl.Event, 2) peepArray[0] = &sdl.UserEvent{sdl.USEREVENT, sdl.GetTicks(), window.GetID(), 1331, nil, nil} peepArray[1] = &sdl.UserEvent{sdl.USEREVENT, sdl.GetTicks(), window.GetID(), 10101, nil, nil} running = true lastPushTime := sdl.GetTicks() for running { if lastPushTime+pushTime < sdl.GetTicks() { lastPushTime = sdl.GetTicks() sdl.PumpEvents() numEventsHandled := sdl.PeepEvents(peepArray, sdl.ADDEVENT, sdl.FIRSTEVENT, sdl.LASTEVENT) if numEventsHandled < 0 { fmt.Printf("PeepEvents error: %s\n", sdl.GetError()) } else { fmt.Printf("Successful push of %d events\n", numEventsHandled) } } 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\ttype:%d\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y, t.XRel, t.YRel) case *sdl.MouseButtonEvent: fmt.Printf("[%d ms] MouseButton\ttype:%d\tid:%d\tx:%d\ty:%d\tbutton:%d\tstate:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y, t.Button, t.State) case *sdl.MouseWheelEvent: fmt.Printf("[%d ms] MouseWheel\ttype:%d\tid:%d\tx:%d\ty:%d\n", t.Timestamp, t.Type, t.Which, t.X, t.Y) case *sdl.KeyUpEvent: fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n", t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat) case *sdl.UserEvent: fmt.Printf("[%d ms] UserEvent\tcode:%d\n", t.Timestamp, t.Code) } } sdl.Delay(1000 / 30) } renderer.Destroy() window.Destroy() }