// Run the demo
void Demo::Run()
{
// Get the instance
Demo *p = Demo::privGetInstance();
p->running = true;
p->privReset();
// Main message loop
MSG msg = { 0 };
// Game Loop until an exit
while (p->running)
{
// Check messages
if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
if (WM_QUIT == msg.message)
{
p->Quit();
continue;
}
}
else
{
// called once per frame, update data, transformations, etc
p->Update();
// called once per frame, only do rendering here
p->Draw();
}
}
};
int WINAPI WinMain(HINSTANCE hinst, HINSTANCE, LPSTR, int show) {
Demo *demo = new Demo(hinst,show);
using namespace Gdiplus;
GdiplusStartupInput gdiplusStartupInput;
ULONG_PTR gdiplusToken;
GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
MSG msg = {0};
const unsigned framerate = 1000/60; // 60 FPS
unsigned last_frame_time = timeGetTime();
while (IsWindow(demo->Window()))
{
// care and feeding of window
if (PeekMessage(&msg,demo->Window(),0,0,PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
// draw and sleep(?)
unsigned current_frame_time = timeGetTime();
if (current_frame_time - last_frame_time >= framerate) // Lock to 60 FPS.
{
demo->Draw(double(current_frame_time - last_frame_time) / 1000);
last_frame_time = current_frame_time;
}
Sleep(1);
}
delete demo;
GdiplusShutdown(gdiplusToken);
return msg.wParam;
}
