// Get the contents of the window's event queue and evacuate it.
func (wi *windowInternal) pollEvents(block bool) ([]Event, []ThreadError) {
// clear the events before and after
wi.events = nil
defer func() {
wi.events = nil
wi.eventErrors = nil
}()
// We process the window events only if we own it
if wi.callback != nil {
return nil, nil
}
// Wait for messages if we're blocking
if block {
if C.WaitMessage() == 0 {
// TODO error check
}
}
for message := (C.MSG{}); C.__PeekMessage(&message, wi.window.Handle, 0, 0, C.PM_REMOVE) == C.TRUE; {
C.TranslateMessage(&message)
C.DispatchMessage(&message)
// if the last one is fatal, return
if len(wi.eventErrors) != 0 && wi.eventErrors[len(wi.eventErrors)-1].Fatal() {
break
}
}
return wi.events, wi.eventErrors
}
func (window *Win32Window) Peek() bool {
var msg C.MSG
res := C.PeekMessageA((*C.struct_tagMSG)(unsafe.Pointer(&msg)), nil, 0, 0, C.PM_REMOVE)
if res == 1 {
C.TranslateMessage(&msg)
C.DispatchMessage(&msg)
if msg.message == C.WM_QUIT {
window.WndProc(window.hwnd, msg.message, 0, 0)
}
return true
}
return false
}
func main() {
// TODO enable VSync in D3D
windowHandle, err := windows.OpenWindow(windowProc, windowW, windowH)
check(err)
window := C.HWND(windowHandle)
C.SetWindowText(
window,
(*C.WCHAR)(syscall.StringToUTF16Ptr("Gophette's Adventure")),
)
check(mixer.Init())
defer mixer.Close()
C.ShowCursor(0)
defer C.ShowCursor(1)
check(d3d9.Init())
defer d3d9.Close()
d3d, err := d3d9.Create(d3d9.SDK_VERSION)
check(err)
defer d3d.Release()
var maxScreenW, maxScreenH uint
for i := uint(0); i < d3d.GetAdapterCount(); i++ {
mode, err := d3d.GetAdapterDisplayMode(i)
if err == nil {
if mode.Width > maxScreenW {
maxScreenW = mode.Width
}
if mode.Height > maxScreenH {
maxScreenH = mode.Height
}
}
}
if maxScreenW == 0 || maxScreenH == 0 {
panic("no monitor detected")
}
device, _, err := d3d.CreateDevice(
d3d9.ADAPTER_DEFAULT,
d3d9.DEVTYPE_HAL,
windowHandle,
d3d9.CREATE_HARDWARE_VERTEXPROCESSING,
d3d9.PRESENT_PARAMETERS{
BackBufferWidth: maxScreenW,
BackBufferHeight: maxScreenH,
BackBufferFormat: d3d9.FMT_A8R8G8B8,
BackBufferCount: 1,
Windowed: true,
SwapEffect: d3d9.SWAPEFFECT_DISCARD,
HDeviceWindow: windowHandle,
},
)
check(err)
defer device.Release()
check(device.SetRenderState(d3d9.RS_CULLMODE, uint32(d3d9.CULL_CW)))
check(device.SetRenderState(d3d9.RS_SRCBLEND, d3d9.BLEND_SRCALPHA))
check(device.SetRenderState(d3d9.RS_DESTBLEND, d3d9.BLEND_INVSRCALPHA))
check(device.SetRenderState(d3d9.RS_ALPHABLENDENABLE, 1))
camera = newWindowCamera(windowW, windowH)
graphics := newWindowsGraphics(device, camera)
defer graphics.close()
assetLoader := newWindowsAssetLoader(device, graphics, camera)
defer assetLoader.close()
// charIndex selects which character is being controlled by the user, for
// the final game this must be 0 but for creating the "AI" for Barney, set
// this to 1 and delete the recorded inputs so they are not applied
// additionally to the user controls
const recordingAI = false // NOTE switch for development mode
if !recordingAI {
charIndex = 0
} else {
charIndex = 1
recordedInputs = recordedInputs[:0]
recordingInput = true
}
game = NewGame(
assetLoader,
graphics,
camera,
charIndex,
)
music := assetLoader.LoadSound("music_wav")
go func() {
for {
music.PlayOnce()
time.Sleep(music.Length() + 5*time.Second)
}
}()
toggleFullscreen(window)
frameTime := time.Second / 65
lastUpdate := time.Now().Add(-frameTime)
var msg C.MSG
C.PeekMessage(&msg, nil, 0, 0, C.PM_NOREMOVE)
for msg.message != C.WM_QUIT {
if C.PeekMessage(&msg, nil, 0, 0, C.PM_REMOVE) != 0 {
C.TranslateMessage(&msg)
C.DispatchMessage(&msg)
} else {
now := time.Now()
dt := now.Sub(lastUpdate)
if dt > frameTime {
game.Update()
lastUpdate = now
}
check(device.SetViewport(
d3d9.VIEWPORT{0, 0, uint32(windowW), uint32(windowH), 0, 1},
))
check(device.Clear(
nil,
d3d9.CLEAR_TARGET,
d3d9.ColorRGB(0, 95, 83),
1,
0,
))
game.Render()
graphics.flush()
check(device.Present(
&d3d9.RECT{0, 0, int32(windowW), int32(windowH)},
nil,
nil,
nil,
))
}
}
}
