public override StateChangeInformation OnUpdate(float elapsedTime)
{
_globalTime += elapsedTime;
_explosionManager.Update(elapsedTime);
_gameBackground.Update(elapsedTime);
_carManager.Update(elapsedTime);
_player.Update(elapsedTime);
_weather.Update(elapsedTime);
if (_playerIsDead)
{
_waitTimer += elapsedTime;
if (_waitTimer >= 3.0f)
{
return(StateChangeInformation.StateChange(typeof(GameOverState), typeof(FlipTransition),
_player.Points));
}
}
else if (!_playerIsDead && _player.PlayerState == PlayerState.Dead)
{
SoundService.StopCurrentSong();
_playerIsDead = true;
_waitTimer = 0;
}
_carManager.spawnTime = (100 - _player.Points / 50);
if (_carManager.spawnTime <= 10)
{
_carManager.spawnTime = 10;
}
_carManager.points = _player.Points + 150;
return(StateChangeInformation.Empty);
}
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed ||
Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
switch (gameState)
{
case GameStates.TitleScreen:
titleScreenTimer += (float)gameTime.ElapsedGameTime.TotalSeconds;
if (titleScreenTimer >= titleScreenDelayTime)
{
if ((Keyboard.GetState().IsKeyDown(Keys.Space)) ||
(GamePad.GetState(PlayerIndex.One).Buttons.Start == ButtonState.Pressed))
{
playerManager.LivesRemaining = playerStartingLives;
playerManager.PlayerScore = 0;
ResetGame();
gameState = GameStates.Playing;
}
}
break;
case GameStates.Playing:
starField.Update(gameTime);
asteroidManager.Update(gameTime);
playerManager.Update(gameTime);
enemyManager.Update(gameTime);
explosionManager.Update(gameTime);
collisionManager.CheckCollisions();
if (playerManager.Destroyed)
{
playerDeathTimer = 0f;
enemyManager.Active = false;
playerManager.LivesRemaining--;
if (playerManager.LivesRemaining < 0)
{
gameState = GameStates.GameOver;
}
else
{
gameState = GameStates.PlayerDead;
}
}
break;
case GameStates.PlayerDead:
playerDeathTimer += (float)gameTime.ElapsedGameTime.TotalSeconds;
starField.Update(gameTime);
asteroidManager.Update(gameTime);
enemyManager.Update(gameTime);
playerManager.PlayerShotManager.Update(gameTime);
explosionManager.Update(gameTime);
if (playerDeathTimer >= playerDeathDelayTime)
{
ResetGame();
gameState = GameStates.Playing;
}
break;
case GameStates.GameOver:
playerDeathTimer += (float)gameTime.ElapsedGameTime.TotalSeconds;
starField.Update(gameTime);
asteroidManager.Update(gameTime);
enemyManager.Update(gameTime);
playerManager.PlayerShotManager.Update(gameTime);
explosionManager.Update(gameTime);
if (playerDeathTimer >= playerDeathDelayTime)
{
gameState = GameStates.TitleScreen;
}
break;
}
base.Update(gameTime);
}