/// <summary>
/// Creats the effect for when the player fires a bullet.
/// </summary>
/// <param name="position">Where on the screen to create the effect.</param>
public void CreatePlayerFireSmoke(Player player)
{
for (int i = 0; i < 8; ++i)
{
Particle p = CreateParticle();
p.Texture = smoke;
p.Color = Color.White;
p.Position.X = player.Position.X + player.Width / 2;
p.Position.Y = player.Position.Y;
p.Alpha = 1.0f;
p.AlphaRate = -1.0f;
p.Life = 1.0f;
p.Rotation = 0.0f;
p.RotationRate = -2.0f + 4.0f * (float)random.NextDouble();
p.Scale = 0.25f;
p.ScaleRate = 0.25f;
p.Velocity.X = -4 + 8.0f * (float)random.NextDouble();
p.Velocity.Y = -16.0f + -32.0f * (float)random.NextDouble();
}
}
public GameplayScreen()
{
random = new Random();
worldBounds = new Rectangle(0, 0, 320, 480);
player = new Player();
playerBullets = new List<Bullet>();
aliens = new List<Alien>();
alienBullets = new List<Bullet>();
gameOver = true;
TransitionOnTime = TimeSpan.FromSeconds(0.0);
TransitionOffTime = TimeSpan.FromSeconds(0.0);
}
/// <summary>
/// Creats the mud/dust effect when the player moves.
/// </summary>
/// <param name="position">Where on the screen to create the effect.</param>
public void CreatePlayerDust(Player player)
{
for (int i = 0; i < 2; ++i)
{
Particle p = CreateParticle();
p.Texture = smoke;
p.Color = new Color(125, 108, 43);
p.Position.X = player.Position.X + player.Width * (float)random.NextDouble();
p.Position.Y = player.Position.Y + player.Height - 3.0f * (float)random.NextDouble();
p.Alpha = 1.0f;
p.AlphaRate = -2.0f;
p.Life = 0.5f;
p.Rotation = 0.0f;
p.RotationRate = -2.0f + 4.0f * (float)random.NextDouble();
p.Scale = 0.25f;
p.ScaleRate = 0.5f;
p.Velocity.X = -4 + 8.0f * (float)random.NextDouble();
p.Velocity.Y = -8 + 4.0f * (float)random.NextDouble();
}
}