protected override void Initialize()
{
const float secondsInMinutes = 60f;
const float rateOfFire = 200f;
_inputListner = new InputListener();
/*
* if (_currentKeyboardState.IsKeyDown(Keys.Space) || _currentGamePadState.Buttons.X == ButtonState.Pressed)
* FireLaser(gameTime);
*
*/
_inputListner.OnKeyDown += InputListenerOnOnKeyDown;
_inputListner.OnGamePadPressed += InputListenerOnOnGamePadPressed;
_inputListner.SupportKey(Keys.Space);
_inputListner.SupportButton(Buttons.X);
_score = 0;
_player = new Player();
_playerMoveSpeed = 8.0f;
_bgLayer1 = new ParallaxingBackground();
_bgLayer2 = new ParallaxingBackground();
_enemies = new List <Enemy>();
_previousSpawnTime = TimeSpan.Zero;
_enemySpawnTime = TimeSpan.FromSeconds(1.0f);
_random = new Random();
_laserBeams = new List <Laser>();
_laserSpawnTime = TimeSpan.FromSeconds(secondsInMinutes / rateOfFire);
_previousLaserSpawnTime = TimeSpan.Zero;
_explosions = new List <Explosion>();
base.Initialize();
}