[TIP] Detecting where the player looks at

Hi, i've written a similar script, add some collider on the object I want to look at. But now, maybe a really stupid question: Until now, all the scripts i've written had to be add on an object. So my question is, where have I to put this script to make it works ?

Hi Nigrin,

Thanks for sharing that. I tackled the same problem and decided to use the Physics.Raycast() approach. Your approach may be much faster I don't know, I've heard raycasting is slow, but in my situation it didn't matter and I've not seen any speed impact.

I'm pretty new to Unity so my approach is probably poor but I thought I'd share it (written in C#) :-

public class PlayerLookingAt : MonoBehaviour {

   Transform cameraTransform = null;

   void Awake() {
      cameraTransform = GameObject.FindWithTag("MainCamera").transform;
   }

   void Update() {
      float length = 10.0f;
      RaycastHit hit;
      Vector3 rayDirection = cameraTransform.TransformDirection(Vector3.forward);
      Vector3 rayStart = cameraTransform.position + rayDirection;      // Start the ray away from the player to avoid hitting itself
      Debug.DrawRay(rayStart, rayDirection * length, Color.green);
      if (Physics.Raycast(rayStart, rayDirection, out hit, length)) {
         if (hit.collider.tag == "Tower") {
            // Do stuff
         }
      }
   }
}

That's the guts of the code. I've tagged the OVR camera controller as 'MainCamera' and put a collider with isTrigger ticked on the objects I want to know if the player is looking at.

I hope that helps someone,
Cheers,
Mark

Thanks for your future answers.
Cheers,
Joffrey.