/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime"> Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
// Render everything in scene activator.
SceneActivator.Render(spriteBatch, GraphicsDevice);
#if DEBUG_INFO
// Check if debug and showfps.
if (SHOW_FPS)
{
// Render fps to screne.
_fps.Render(spriteBatch, GraphicsDevice);
}
#endif
// Call base draw.
base.Draw(gameTime);
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// Get the spritebatch.
spriteBatch = new SpriteBatch(GraphicsDevice);
#if DEBUG_INFO
// Load debug font.
SpriteFont font = Content.Load <SpriteFont>("Font/DebugFont");
// If debug mode + SHOW_FPS create fps counter.
if (SHOW_FPS)
{
_fps = new FpsCounter(font);
}
#endif
// Start intro scene.
SceneActivator.ActivateScene(new IntroScene(this));
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Check if game should close.
if (Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
/*
* If an update takes too long, we want to set the elapsed time to 41ms
* this is to prevent strange physics based bugs
* The game can play on lower framerate
* But the updates will be done on 24 fps calculations.
*/
// Check gametime is more than 41 milliseconds (24fps).
if (gameTime.ElapsedGameTime.TotalMilliseconds > 41f)
{
// set gametime to 41 milliseconds.
gameTime.ElapsedGameTime = new System.TimeSpan(0, 0, 0, 0, 41);
}
// Update keyboard device.
KeyboardDevice.Update(gameTime);
// Update scene activator.
SceneActivator.Update(gameTime);
// Call keyboard endframe.
KeyboardDevice.EndFrame();
#if DEBUG_INFO
// check if debug + SHOW_FPS
if (SHOW_FPS)
{
// Update fps counter.
_fps.Update(gameTime);
}
#endif
// Update base.
base.Update(gameTime);
}
