/// <summary>
/// Initializes the game libraries.
/// </summary>
/// <param name="owner">Control (Form) that owns the game</param>
public GameMain(Control owner)
{
// Create a Graphics instance
#if USE_GDI
graphics = new GdiGraphics(owner);
#else
graphics = new DirectXGraphics(owner);
#endif
Debug.Assert(graphics != null,
"GameMain.GameMain: Failed to initialize Graphics object");
// Create a Input instance
gi = new Input(owner);
Debug.Assert(gi != null,
"GameMain.GameMain: Failed to initialize Input object");
// Register the hardware buttons
gi.RegisterAllHardwareKeys();
// Initialize the random number generator
rnd = new Random();
// Create a stopwatch instance for timing the frames
sw = new Timer.Stopwatch();
Debug.Assert(sw != null,
"GameMain.Run: Failed to initialize StopWatch");
}
/// <summary>
/// Update the splash screen.
/// </summary>
public void UpdateSplash()
{
// Calculate the upper-left corner of the splash screen image
int x = (graphics.ScreenWidth - splash.Width) >> 1;
int y = (graphics.ScreenHeight - splash.Height) >> 1;
// The source region is the entire image
src.X = 0;
src.Y = 0;
src.Width = splash.Width;
src.Height = splash.Height;
// Draw the splash screen
graphics.DrawBitmap(x, y, src, splash);
// Flip the back buffers
graphics.Flip();
// Store the tick at which this frame started
Timer.Stopwatch sw = new Timer.Stopwatch();
Int64 startTick = sw.CurrentTick();
// Draw the splash screen
graphics.DrawBitmap(x, y, src, splash);
// Draw a "Loading" message as this might take a while
graphics.DrawText(graphics.ScreenWidth >> 1,
graphics.ScreenHeight - 50,
"Loading...",
Color.White, ui.Font, FontDrawOptions.DrawTextCenter);
// Flip the back buffers
graphics.Flip();
if (!introLoaded)
{
LoadIntro();
}
// delay if the splash screen hasn't been up long enough
while (sw.DeltaTimeMilliseconds(sw.CurrentTick(), startTick)
< TotalSplashTime * 1000.0F)
{
Thread.Sleep(0);
}
mode = ModeSwitch.UpdateIntro;
}