UDK AI programming

Some of most important functions and events of UnrealScript to program Artificial Intelligence. This is another post that I’m translating of my Portuguese site(Portuguese postage).

Functions -

• FindRandomDest() – Return any of yours NavigationPoints.
• PointReachable(vector) - Return a bool, if the path to the point is free [true].
• ActorReachable(actor) - Same as above, but check a path to “actor”.
• LineOfSightTo(actor) - Return a bool, if the actor is on eye range[true].
• CanSee(pawn) - Same as above, but consider primary and peripheral field of vision.
• MoveTo(vector, actor, bool) - Move to “vector”, looking at “actor”, if “bool” is true.
• MoveToward(actor, actor, float, bool, bool) - Same as above, but move to an “actor”, for “float” time.

Events-

• SeePlayer(pawn) - Called when a Pawn, with bIsPlayer=true, is on line of sight. Gives you the Pawn.
• SeeMonster(pawn) - Same as above, but with bIsPlayer=false. Gives you the Pawn.
• EnemyNotVisible - Called when an Enemy Pawn is no more visible.
• HearNoise(float, actor) - Called when a sound play near. Gives you the “actor” that play the sound, and the “float” volume.
• NotifyTakeHit(pawn, vector, int, class, vector) - Called when take hit. Gives you the Pawn that do the hit, the vector of hit, the int of damage, the class of damage, and the vector of impulse.
• NotifyAddInventory(inventory) - Called when get a new item.
• PrepareForMove(NavigationPoint, ReachSpecPath) - Called when this pawn can’t reach some point with the current configuration. Gives you the NavigationPoint that is not reachable, and the path of ReachSpecPath. -Usually, the A.I. duck (or jump) to try continue, but you can try a better solution.