Programming 2D Games

834.2. The Game Class

{

// Start rendering

if (SUCCEEDED(graphics->beginScene()))

{

// Render is a pure virtual function that must be provided in the

// inheriting class.

render(); // Call render in derived class

// Stop rendering

graphics->endScene();

}

handleLostGraphicsDevice();

// Display the backbuffer on the screen

graphics->showBackbuffer();

}

Listing 4.11. e Game class renderGame function.

4.2.5 The Game Loop

Most games that contain any sort of animated graphics require a loop to control the anima-

tion. e loop is actually the main message loop in the WinMain function of winmain.cpp.

e game’s run function is repeatedly called from the main ...