Question by Mcni · Dec 25, 2017 at 08:30 PM · c#layer layermask

How to get the layer id from a layer mask?

I'm using a layer mask with two layers for a raycast.

I select which via the editor and then combine them in Start:

 public LayerMask groundLayer;
 public LayerMask selectableLayer;    
 LayerMask mask;

 void Start () {
     mask = groundLayer | selectableLayer;
 }

Then I use mask for the raycast.

The problem arises when I try to compare what layer the raycast hit:

 RaycastHit hitInfo;
 bool hit = Physics.Raycast(Cam.ScreenPointToRay(Input.mousePosition), out hitInfo, 200, mask);
 
 if (hit)
 {
     Debug.Log(hitInfo.transform.gameObject.layer);
     Debug.Log(groundLayer.value);
     Debug.Log(selectableLayer.value);

     if (hitInfo.transform.gameObject.layer == selectableLayer.value)
     {
         
     }
     else if (hitInfo.transform.gameObject.layer == groundLayer.value)
     {
         
     }
 }

In the layer editor, Ground layer is 8, Selectable layer is 9. But if I hit the ground with the raycast the console output is: