Need help with using Sphere collider as trigger.

Ok, here is the scenario.

GameObject 1 (A tower defense style turret) has a child object which is a sphere with weapons attached to it.
I want the sphere to rotate and look at the player when the player gets inside its sphere collider component.

I want to use a bool to check if the player is in range of the collider, and if so have the turret to face the player and shoot. Any help on this is appreciated thanks.

 

I am new to unity and scripting. I have looked in the unity handbook for a solution and cannot find one.

 

Did you get the trigger part to work?
as in here:
http://unity3d.com/learn/tutorials/modules/beginner/physics/colliders-as-triggers

Then you can check if its player who entereted trigger, with:
http://docs.unity3d.com/ScriptReference/Component.CompareTag.html *Player needs to be tagged as "Player"

Then you can check distance,
http://docs.unity3d.com/ScriptReference/Vector3.Distance.html

And look towards player,
http://docs.unity3d.com/ScriptReference/Transform.LookAt.html
(although later you might want to turn slowly toward player instead..)

 

Thank you yea I know how to do the trigger part. Just confused how to reference it in the script, and how to use the reference for an action.

 

Just needed someone to point me in the right direction and you have done a great job Thanks again