public ScreenManager(Game game)
: base(game)
{
_spriteBatch = (SpriteBatch)game.Services.GetService(typeof(SpriteBatch));
// Sets initial screen to start screen since that is
// the first screen that is present in the game
// TODO: set first screen
_activeScreen = new StartScreen(game, _spriteBatch);
}
public override void Update(ref Screen activeScreen, GameTime gameTime)
{
_currentState = Keyboard.GetState();
if (_currentState != _prevState && _currentState.IsKeyDown(Keys.Enter))
{
activeScreen = new GameScreen(_game, _spriteBatch);
}
_prevState = _currentState;
if (GameProperties.Instance.Start)
{
GameProperties.Instance.Start = false;
activeScreen = new GameScreen(_game, _spriteBatch);
}
}
public override void Update(ref Screen activeScreen, GameTime gameTime)
{
if (!GameProperties.Instance.GameOver)
{
_lastFrame += gameTime.ElapsedGameTime.Milliseconds;
if (_lastFrame > _time)
{
GameProperties.Instance.Score += ( 1 * GameProperties.Instance.Multiplier );
_lastFrame = 0;
}
}
else
{
if (GameProperties.Instance.Score > GameProperties.Instance.HighScore)
{
GameProperties.Instance.HighScore = GameProperties.Instance.Score;
}
}
if (_backgroundMusic == null)
{
_backgroundMusic = Resources.Instance.GetSound("RockMusic").CreateInstance();
_backgroundMusic.IsLooped = true;
_backgroundMusic.Volume = 0.5f;
_backgroundMusic.Play();
}
_currState = Keyboard.GetState();
if (GameProperties.Instance.GameOver && _currState.IsKeyDown(Keys.Enter))
{
_game.Components.Remove(_keyboard);
_game.Components.Remove(_spriteManager);
_backgroundMusic.Stop();
GameProperties.Instance.GameOver = false;
activeScreen = new StartScreen(_game, _spriteBatch);
}
if (GameProperties.Instance.GameOver && GameProperties.Instance.Reset)
{
GameProperties.Instance.Reset = false;
_game.Components.Remove(_keyboard);
_game.Components.Remove(_spriteManager);
_backgroundMusic.Stop();
GameProperties.Instance.GameOver = false;
activeScreen = new StartScreen(_game, _spriteBatch);
}
}
// Passes reference so can change the screen based // off user input. public abstract void Update(ref Screen activeScreen, GameTime gameTime);
