Select an Enemy C#

Questions & Answers
1

Is it possible to use a RayCast (idk know what a raycast is) to select an enemy? Like if i have a variable lets say

public Transform EnemySelected;

And i wanted it if you clicked a object that had the script NPC_AI.cs that this variable would equal that enemy? If it is possible how could i go upon doing this?

EDIT:

Sorry i forgot to include this i have a tag also set up if its an enemy

2

For a good intro video to raycasting, click here

Also, the Unity documentation is your friend.

You can get the transform of an object that was hit with your raycast…
http://unity3d.com/support/documentation/ScriptReference/RaycastHit-transform.html

More information on raycasts can be found here
http://unity3d.com/support/documentation/ScriptReference/Physics.Raycast.html