A Simple Side-Scrolling Shooting Game - C# Game Programming: For Serious Game Creation - page 340

the PlayerCharacter class needs access to the manager. In the Level
constructor, pass

the BulletManager into the PlayerCharacter

constructor.

_playerCharacter ¼ new PlayerCharacter(_textureManager,
_bulletManager);

The PlayerCharacter class code then needs to be altered to accept and store
a reference to the BulletManager .

BulletManager _bulletManager;
Texture _bulletTexture;
public PlayerCharacter(TextureManager textureManager, BulletManager
bulletManager)
{

_bulletManager ¼ bulletManager;
_bulletTexture ¼ textureManager.Get("bullet");

The PlayerCharacter constructor also stores the bulletTexture that will
be used when firing bullets. To fire a bullet, a bullet object needs to be created
and positioned so that it starts near the player and then passes into the
BulletManager . A new Fire method in the PlayerCharacter class will
be responsible for this.

Vector _gunOffset ¼ new Vector(55, 0, 0);
public void Fire()
{

Bullet bullet ¼ new Bullet(_bulletTexture);
bullet.SetColor(new Color(0, 1, 0, 1));
bullet.SetPosition(_sprite.GetPosition() þ _gunOffset);
_bulletManager.Shoot(bullet);

}

The bullet is created using the bulletTexture that was set up in the con-
structor. It's then colored green, but you can choose any color you want. The
position of the bullet is set so that it is the same position as the player's ship, but
with an offset so that the bullet appears to come from the front of the ship. If
there was no offset, the bullet would appear right in the middle of the ship
sprite and this would look a little weird. The bullet direction isn't altered because
forward on the X axis is the default value. The default speed is also fine. Finally,
the bullet is given to the BulletManager and is officially fired using the
Shoot method.