Graphics Reference
In-Depth Information
As mentioned early in this section, the TellGCEnemyDestroyed() function (and
also the TellGCBossDestroyed() function) is designed to be overridden if a new type of
game controller is used. These functions call EnemyDestroyed() or BossDestroyed() on
it.
GameController_IP.EnemyDestroyed() takes three parameters: the position of the
enemy destroyed, how much score the player should be awarded for blasting it, and,
finally, the owner ID of the projectile so that the player may be identified. Without the ID,
the game controller would not know which player to award the score to:
public virtual void TellGCEnemyDestroyed()
{
GameController_IP.Instance.EnemyDestroyed( myTransform.position,
pointsValue, tempINT );
}
public virtual void TellGCBossDestroyed()
{
GameController_IP.Instance.BossDestroyed();
}
14.3.5 Waypoint Follower
Enemy spaceships move along waypoint paths as they fire at the player at the bottom
of the screen. The BaseArmedEnemy script controls weapon firing, and the AI con-
troller deals with path following (through its translate_along_waypoint_path state).
For the AI controller to do this, it needs to know which waypoint controller to use and
needs to have its AIState set (its default state is to patrol, not follow, waypoints) and the
BaseWaypointFollower.cs script serves this purpose.
The BaseWaypointFollower.cs script:
// uses the translate_along_waypoint_path function of the AIController to
// follow along a path
public class BaseWaypointFollower : ExtendedCustomMonoBehavior
{
public BaseAIController AIController;
public virtual void Start ()
{
if(!didInit)
Init ();
}
public virtual void Init ()
{
// cache our transform
myTransform= transform;
// cache our gameObject
myGO= gameObject;
// cache a reference to the AI controller
AIController= myGO.GetComponent<BaseAIController>();
