/// <summary>
/// It's update function that shoots out TurretFireballs if the PlayerShip
/// is in range.
/// </summary>
/// <param name="elapsedTime">Elapsed time of the update.</param>
public override void Update(float elapsedTime)
{
PlayerShip player = ScrollingShooterGame.Game.Player;
Vector2 playerPosition = new Vector2(player.Bounds.Center.X, player.Bounds.Center.Y);
Vector2 toPlayer = playerPosition - this.position;
turretGunTimer += elapsedTime;
if (toPlayer.LengthSquared() < 95000)
{
toPlayer.Normalize();
// Unit vector numbers. Should turn evenly in 8 directions.
if (toPlayer.X > 0.92f)
{
steeringState = TurretSteeringState.Right;
}
else if (toPlayer.X < -0.92f)
{
steeringState = TurretSteeringState.Left;
}
else if (-toPlayer.Y > 0.92f)
{
steeringState = TurretSteeringState.Top;
}
else if (-toPlayer.Y < -0.92f)
{
steeringState = TurretSteeringState.Bottom;
}
else if (toPlayer.X > 0.38f && -toPlayer.Y > 0.38f)
{
steeringState = TurretSteeringState.TopRight;
}
else if (toPlayer.X > 0.38f && -toPlayer.Y < -0.38f)
{
steeringState = TurretSteeringState.BottomRight;
}
else if (toPlayer.X < -0.38f && -toPlayer.Y > 0.38f)
{
steeringState = TurretSteeringState.TopLeft;
}
else
{
steeringState = TurretSteeringState.BottomLeft;
}
// Turret firing speed can be adjusted here.
if (turretGunTimer > 1.75f)
{
ScrollingShooterGame.GameObjectManager.CreateProjectile(ProjectileType.TurretFireball, position);
turretGunTimer = 0f;
}
}
}
/// <summary>
/// New turret class.
/// </summary>
/// <param name="content">Content Manager</param>
/// <param name="position">The turrets sitting position.</param>
public Turret(uint id, ContentManager content, Vector2 position) : base(id)
{
this.position = position;
spritesheet = content.Load <Texture2D>("Spritesheets/newshp.shp.000000");
spriteBounds[(int)TurretSteeringState.TopLeft].X = 144;
spriteBounds[(int)TurretSteeringState.TopLeft].Y = 0;
spriteBounds[(int)TurretSteeringState.TopLeft].Width = 24;
spriteBounds[(int)TurretSteeringState.TopLeft].Height = 28;
spriteBounds[(int)TurretSteeringState.Top].X = 168;
spriteBounds[(int)TurretSteeringState.Top].Y = 0;
spriteBounds[(int)TurretSteeringState.Top].Width = 24;
spriteBounds[(int)TurretSteeringState.Top].Height = 28;
spriteBounds[(int)TurretSteeringState.TopRight].X = 192;
spriteBounds[(int)TurretSteeringState.TopRight].Y = 0;
spriteBounds[(int)TurretSteeringState.TopRight].Width = 24;
spriteBounds[(int)TurretSteeringState.TopRight].Height = 28;
spriteBounds[(int)TurretSteeringState.Right].X = 192;
spriteBounds[(int)TurretSteeringState.Right].Y = 28;
spriteBounds[(int)TurretSteeringState.Right].Width = 24;
spriteBounds[(int)TurretSteeringState.Right].Height = 28;
spriteBounds[(int)TurretSteeringState.BottomRight].X = 192;
spriteBounds[(int)TurretSteeringState.BottomRight].Y = 56;
spriteBounds[(int)TurretSteeringState.BottomRight].Width = 24;
spriteBounds[(int)TurretSteeringState.BottomRight].Height = 28;
spriteBounds[(int)TurretSteeringState.Bottom].X = 168;
spriteBounds[(int)TurretSteeringState.Bottom].Y = 56;
spriteBounds[(int)TurretSteeringState.Bottom].Width = 24;
spriteBounds[(int)TurretSteeringState.Bottom].Height = 28;
spriteBounds[(int)TurretSteeringState.BottomLeft].X = 144;
spriteBounds[(int)TurretSteeringState.BottomLeft].Y = 56;
spriteBounds[(int)TurretSteeringState.BottomLeft].Width = 24;
spriteBounds[(int)TurretSteeringState.BottomLeft].Height = 28;
spriteBounds[(int)TurretSteeringState.Left].X = 144;
spriteBounds[(int)TurretSteeringState.Left].Y = 28;
spriteBounds[(int)TurretSteeringState.Left].Width = 24;
spriteBounds[(int)TurretSteeringState.Left].Height = 28;
steeringState = TurretSteeringState.Bottom;
}
/// <summary>
/// New turret class.
/// </summary>
/// <param name="content">Content Manager</param>
/// <param name="position">The turrets sitting position.</param>
public Turret(uint id, ContentManager content, Vector2 position)
: base(id)
{
this.position = position;
spritesheet = content.Load<Texture2D>("Spritesheets/newshp.shp.000000");
spriteBounds[(int)TurretSteeringState.TopLeft].X = 144;
spriteBounds[(int)TurretSteeringState.TopLeft].Y = 0;
spriteBounds[(int)TurretSteeringState.TopLeft].Width = 24;
spriteBounds[(int)TurretSteeringState.TopLeft].Height = 28;
spriteBounds[(int)TurretSteeringState.Top].X = 168;
spriteBounds[(int)TurretSteeringState.Top].Y = 0;
spriteBounds[(int)TurretSteeringState.Top].Width = 24;
spriteBounds[(int)TurretSteeringState.Top].Height = 28;
spriteBounds[(int)TurretSteeringState.TopRight].X = 192;
spriteBounds[(int)TurretSteeringState.TopRight].Y = 0;
spriteBounds[(int)TurretSteeringState.TopRight].Width = 24;
spriteBounds[(int)TurretSteeringState.TopRight].Height = 28;
spriteBounds[(int)TurretSteeringState.Right].X = 192;
spriteBounds[(int)TurretSteeringState.Right].Y = 28;
spriteBounds[(int)TurretSteeringState.Right].Width = 24;
spriteBounds[(int)TurretSteeringState.Right].Height = 28;
spriteBounds[(int)TurretSteeringState.BottomRight].X = 192;
spriteBounds[(int)TurretSteeringState.BottomRight].Y = 56;
spriteBounds[(int)TurretSteeringState.BottomRight].Width = 24;
spriteBounds[(int)TurretSteeringState.BottomRight].Height = 28;
spriteBounds[(int)TurretSteeringState.Bottom].X = 168;
spriteBounds[(int)TurretSteeringState.Bottom].Y = 56;
spriteBounds[(int)TurretSteeringState.Bottom].Width = 24;
spriteBounds[(int)TurretSteeringState.Bottom].Height = 28;
spriteBounds[(int)TurretSteeringState.BottomLeft].X = 144;
spriteBounds[(int)TurretSteeringState.BottomLeft].Y = 56;
spriteBounds[(int)TurretSteeringState.BottomLeft].Width = 24;
spriteBounds[(int)TurretSteeringState.BottomLeft].Height = 28;
spriteBounds[(int)TurretSteeringState.Left].X = 144;
spriteBounds[(int)TurretSteeringState.Left].Y = 28;
spriteBounds[(int)TurretSteeringState.Left].Width = 24;
spriteBounds[(int)TurretSteeringState.Left].Height = 28;
steeringState = TurretSteeringState.Bottom;
}
/// <summary>
/// It's update function that shoots out TurretFireballs if the PlayerShip
/// is in range.
/// </summary>
/// <param name="elapsedTime">Elapsed time of the update.</param>
public override void Update(float elapsedTime)
{
PlayerShip Player = ScrollingShooterGame.Game.Player;
Vector2 PlayerPosition = new Vector2(Player.Bounds.Center.X, Player.Bounds.Center.Y);
Vector2 toPlayer = PlayerPosition - this.position;
turretGunTimer+=elapsedTime;
if (toPlayer.LengthSquared() < 95000)
{
toPlayer.Normalize();
// Unit vector numbers. Should turn evenly in 8 directions.
if (toPlayer.X > 0.92f) steeringState = TurretSteeringState.Right;
else if (toPlayer.X < -0.92f) steeringState = TurretSteeringState.Left;
else if (-toPlayer.Y > 0.92f) steeringState = TurretSteeringState.Top;
else if (-toPlayer.Y < -0.92f) steeringState = TurretSteeringState.Bottom;
else if (toPlayer.X > 0.38f && -toPlayer.Y > 0.38f) steeringState = TurretSteeringState.TopRight;
else if (toPlayer.X > 0.38f && -toPlayer.Y < -0.38f) steeringState = TurretSteeringState.BottomRight;
else if (toPlayer.X < -0.38f && -toPlayer.Y > 0.38f) steeringState = TurretSteeringState.TopLeft;
else steeringState = TurretSteeringState.BottomLeft;
// Turret firing speed can be adjusted here.
if (turretGunTimer > 1.75f)
{
ScrollingShooterGame.GameObjectManager.CreateProjectile(ProjectileType.TurretFireball, position);
turretGunTimer = 0f;
}
}
}
