/// <summary>
/// Tidies up the scene. Base class does nothing but calls the overlays
/// </summary>
public virtual void Shutdown()
{
if (overlay != null)
{
overlay.Shutdown();
}
if (batch != null)
{
batch.Dispose();
batch = null;
}
}
internal void ChangeState(GameState NextState)
{
//Logo spash can come from ANY state since its the place you go when you restart
if (NextState == GameState.LogoSplash)
{
if (currentScreen != null)
{
currentScreen.Shutdown();
}
currentScreen = new TitleScreen(this);
gameState = GameState.LogoSplash;
}
else if (gameState == GameState.LogoSplash && NextState == GameState.ShipSelection)
{
Sound.PlayCue(Sounds.MenuAdvance);
//This is really where the game starts so setup the player information
players = new Player[2] {
new Player(), new Player()
};
//Start at level 1
gameLevel = 1;
currentScreen.Shutdown();
currentScreen = new SelectionScreen(this);
gameState = GameState.ShipSelection;
}
else if (gameState == GameState.PlayEvolved && NextState == GameState.ShipUpgrade)
{
currentScreen.Shutdown();
currentScreen = new ShipUpgradeScreen(this);
gameState = GameState.ShipUpgrade;
}
else if ((gameState == GameState.ShipSelection || GameState == GameState.ShipUpgrade) && NextState == GameState.PlayEvolved)
{
Sound.PlayCue(Sounds.MenuAdvance);
currentScreen.Shutdown();
currentScreen = new EvolvedScreen(this);
gameState = GameState.PlayEvolved;
}
else if (gameState == GameState.LogoSplash && NextState == GameState.PlayRetro)
{
//Game starts here for retro
players = new Player[2] {
new Player(), new Player()
};
currentScreen.Shutdown();
currentScreen = new RetroScreen(this);
gameState = GameState.PlayRetro;
}
else if (gameState == GameState.PlayEvolved && NextState == GameState.Victory)
{
currentScreen.Shutdown();
currentScreen = new VictoryScreen(this);
gameState = GameState.Victory;
}
else
{
//This is a BAD thing and should never happen
// What does this map to on XBox 360?
//Debug.Assert(false, String.Format("Invalid State transition {0} to {1}", gameState.ToString(), NextState.ToString()));
}
}
