public void Update(double elapsedTime)
{
_shootCountDown = _shootCountDown - elapsedTime;
if (_shootCountDown <= 0)
{
Bullet bullet = new Bullet(_bulletTexture);
bullet.Speed = 350;
bullet.Direction = new Vector(-1, 0, 0);
bullet.SetPosition(_sprite.GetPosition());
bullet.SetColor(new Engine.Color(1, 0, 0, 1));
_bulletManager.EnemyShoot(bullet);
RestartShootCountDown();
}
if (Path != null)
{
Path.UpdatePosition(elapsedTime, this);
}
if (_hitFlashCountDown != 0)
{
_hitFlashCountDown = Math.Max(0, _hitFlashCountDown - elapsedTime);
double scaledTime = 1 - (_hitFlashCountDown / HitFlashTime);
_sprite.SetColor(new Engine.Color(1, 1, (float)scaledTime, 1));
}
}
public void Fire()
{
if (_fireRecoveryTime > 0)
{
return;
}
else
{
_fireRecoveryTime = FireRecovery;
}
Bullet bullet = new Bullet(_bulletTexture);
bullet.SetColor(new Color(0, 1, 0, 1));
bullet.SetPosition(_sprite.GetPosition() + _gunOffset);
_bulletManager.Shoot(bullet);
}
internal void OnCollision(Bullet bullet)
{
// If the ship is already dead then ignore any more bullets.
if (Health == 0)
{
return;
}
Health = Math.Max(0, Health - 25);
_hitFlashCountDown = HitFlashTime; // half
_sprite.SetColor(new Engine.Color(1, 1, 0, 1));
if (Health == 0)
{
OnDestroyed();
}
}
internal void OnCollision(Bullet bullet)
{
_dead = true;
}
public void EnemyShoot(Bullet bullet)
{
_enemyBullets.Add(bullet);
}
public void Shoot(Bullet bullet)
{
_bullets.Add(bullet);
}