/// <summary>
/// Updates the Dart ship
/// </summary>
/// <param name="elapsedTime">The in-game time between the previous and current frame</param>
public override void Update(float elapsedTime)
{
// Sense the Player's position
PlayerShip Player = ScrollingShooterGame.Game.Player;
Vector2 PlayerPosition = new Vector2(Player.Bounds.Center.X, Player.Bounds.Center.Y);
// Get a vector from our position to the Player's position
Vector2 toPlayer = PlayerPosition - this.position;
if (toPlayer.LengthSquared() < 40000)
{
// We sense the Player's ship!
// Get a normalized steering vector
toPlayer.Normalize();
// Steer towards them!
//this.position += toPlayer * elapsedTime * 100;
// Change the steering state to reflect our direction
if (toPlayer.X < -0.5f)
{
steeringState = DartSteeringState.Left;
}
else if (toPlayer.X > 0.5f)
{
steeringState = DartSteeringState.Right;
}
else
{
steeringState = DartSteeringState.Straight;
}
}
}
/// <summary>
/// Creates a new instance of a Dart enemy ship
/// </summary>
/// <param name="content">A ContentManager to load resources with</param>
/// <param name="position">The position of the Dart ship in the game world</param>
public Dart(uint id, ContentManager content, Vector2 position)
: base(id)
{
this.position = position;
spritesheet = content.Load<Texture2D>("Spritesheets/newshf.shp.000000");
spriteBounds[(int)DartSteeringState.Left].X = 98;
spriteBounds[(int)DartSteeringState.Left].Y = 84;
spriteBounds[(int)DartSteeringState.Left].Width = 22;
spriteBounds[(int)DartSteeringState.Left].Height = 28;
spriteBounds[(int)DartSteeringState.Straight].X = 122;
spriteBounds[(int)DartSteeringState.Straight].Y = 84;
spriteBounds[(int)DartSteeringState.Straight].Width = 22;
spriteBounds[(int)DartSteeringState.Straight].Height = 28;
spriteBounds[(int)DartSteeringState.Right].X = 147;
spriteBounds[(int)DartSteeringState.Right].Y = 84;
spriteBounds[(int)DartSteeringState.Right].Width = 22;
spriteBounds[(int)DartSteeringState.Right].Height = 28;
steeringState = DartSteeringState.Straight;
gunTimer = 0;
}
/// <summary>
/// Creates a new instance of a Dart enemy ship
/// </summary>
/// <param name="content">A ContentManager to load resources with</param>
/// <param name="position">The position of the Dart ship in the game world</param>
public Dart(uint id, ContentManager content, Vector2 position) : base(id)
{
this.position = position;
spritesheet = content.Load <Texture2D>("Spritesheets/newshf.shp.000000");
spriteBounds[(int)DartSteeringState.Left].X = 98;
spriteBounds[(int)DartSteeringState.Left].Y = 84;
spriteBounds[(int)DartSteeringState.Left].Width = 20;
spriteBounds[(int)DartSteeringState.Left].Height = 28;
spriteBounds[(int)DartSteeringState.Straight].X = 122;
spriteBounds[(int)DartSteeringState.Straight].Y = 84;
spriteBounds[(int)DartSteeringState.Straight].Width = 20;
spriteBounds[(int)DartSteeringState.Straight].Height = 28;
spriteBounds[(int)DartSteeringState.Right].X = 147;
spriteBounds[(int)DartSteeringState.Right].Y = 84;
spriteBounds[(int)DartSteeringState.Right].Width = 20;
spriteBounds[(int)DartSteeringState.Right].Height = 28;
steeringState = DartSteeringState.Straight;
}
/// <summary>
/// Creates a new instance of a Kamikaze enemy ship
/// </summary>
/// <param name="content">A ContentManager to load resources with</param>
/// <param name="position">The position of the Kamikaze ship in the game world</param>
public Kamikaze(uint id, ContentManager content, Vector2 position)
: base(id)
{
this.position = position;
spritesheet = content.Load <Texture2D>("Spritesheets/newsh2.shp.000000");
spriteBounds[(int)DartSteeringState.Left].X = 148;
spriteBounds[(int)DartSteeringState.Left].Y = 140;
spriteBounds[(int)DartSteeringState.Left].Width = 15;
spriteBounds[(int)DartSteeringState.Left].Height = 19;
spriteBounds[(int)DartSteeringState.Straight].X = 3;
spriteBounds[(int)DartSteeringState.Straight].Y = 141;
spriteBounds[(int)DartSteeringState.Straight].Width = 17;
spriteBounds[(int)DartSteeringState.Straight].Height = 19;
spriteBounds[(int)DartSteeringState.Right].X = 53;
spriteBounds[(int)DartSteeringState.Right].Y = 141;
spriteBounds[(int)DartSteeringState.Right].Width = 15;
spriteBounds[(int)DartSteeringState.Right].Height = 19;
steeringState = DartSteeringState.Straight;
}
/// <summary>
/// Creates a new instance of a Kamikaze enemy ship
/// </summary>
/// <param name="content">A ContentManager to load resources with</param>
/// <param name="position">The position of the Kamikaze ship in the game world</param>
public Kamikaze(uint id, ContentManager content, Vector2 position)
: base(id)
{
this.position = position;
this.Score = 16;
spritesheet = content.Load<Texture2D>("Spritesheets/newsh2.shp.000000");
spriteBounds[(int)DartSteeringState.Left].X =148;
spriteBounds[(int)DartSteeringState.Left].Y = 140;
spriteBounds[(int)DartSteeringState.Left].Width = 15;
spriteBounds[(int)DartSteeringState.Left].Height =19;
spriteBounds[(int)DartSteeringState.Straight].X = 3;
spriteBounds[(int)DartSteeringState.Straight].Y = 141;
spriteBounds[(int)DartSteeringState.Straight].Width = 17;
spriteBounds[(int)DartSteeringState.Straight].Height = 19;
spriteBounds[(int)DartSteeringState.Right].X = 53;
spriteBounds[(int)DartSteeringState.Right].Y = 141;
spriteBounds[(int)DartSteeringState.Right].Width = 15;
spriteBounds[(int)DartSteeringState.Right].Height = 19;
steeringState = DartSteeringState.Straight;
}
/// <summary>
/// Updates the Dart ship
/// </summary>
/// <param name="elapsedTime">The in-game time between the previous and current frame</param>
public override void Update(float elapsedTime)
{
gunTimer += elapsedTime;
// Sense the Player's position
PlayerShip Player = ScrollingShooterGame.Game.Player;
Vector2 PlayerPosition = new Vector2(Player.Bounds.Center.X, Player.Bounds.Center.Y);
// Get a vector from our position to the Player's position
Vector2 toPlayer = PlayerPosition - this.position;
if (this.position.Y > -ScrollingShooterGame.LevelManager.scrollDistance / 2 && this.position.Y <= Player.Position.Y + 75)
{
// We sense the Player's ship!
// Get a normalized steering vector
toPlayer.Normalize();
// Steer towards them!
this.position += toPlayer * elapsedTime * 100;
// Change the steering state to reflect our direction
if (toPlayer.X < -0.5f) steeringState = DartSteeringState.Left;
else if (toPlayer.X > 0.5f) steeringState = DartSteeringState.Right;
else steeringState = DartSteeringState.Straight;
// Shoot at the player
if (gunTimer >= 0.5f)
{
ScrollingShooterGame.GameObjectManager.CreateProjectile(ProjectileType.EnemyBullet, position);
gunTimer = 0;
}
}
}
/// <summary>
/// Updates the Dart ship
/// </summary>
/// <param name="elapsedTime">The in-game time between the previous and current frame</param>
public override void Update(float elapsedTime)
{
// Sense the Player's position
PlayerShip Player = ScrollingShooterGame.Game.Player;
Vector2 PlayerPosition = new Vector2(Player.Bounds.Center.X, Player.Bounds.Center.Y);
// Get a vector from our position to the Player's position
Vector2 toPlayer = PlayerPosition - this.position;
if(toPlayer.LengthSquared() < 40000)
{
// We sense the Player's ship!
// Get a normalized steering vector
toPlayer.Normalize();
// Steer towards them!
this.position += toPlayer * elapsedTime * 100;
// Change the steering state to reflect our direction
if (toPlayer.X < -0.5f) steeringState = DartSteeringState.Left;
else if (toPlayer.X > 0.5f) steeringState = DartSteeringState.Right;
else steeringState = DartSteeringState.Straight;
}
}
