Raycast not finding my player?

Unity Engine
1

Hey all! Working on a simple AI script but for some reason the raycasting that I am using is not finding my player.

Code:

if (Physics.Raycast(sightDetector.position, Vector3.right, sight, 12))
            {
                state = EnemyState.Attack;
            }

I run a Debug.DrawLine to see if it works. The line is drawn so I am fairly certain it is running. the 12 is the Layermask and my player is on the 12 Layer. So I am not sure what I am missing. Any ideas?

2

Place a debug log on line 4 to see what it hits?

Debug.Log(hit.gameObject.name);

3

The raycast expects a layermask, not an integer for which layer you want to do the cast on. Which makes sense, since we may want to do the cast on some 5 layers at the same time, not just one. So what happens now is that your 12 is taken as its binary value of 0b1100. Meaning, if iā€™m not mistaken, you are doing your raycast on layers 2 and 3 only.
Based on the example here, where they want to cast in the player layer, you can do a 12 bitshift to only cast on layer 12: Unity - Manual: Layers

int layerMask = 1 << 12;
1 Like
4

What @Yoreki says is certainly correct layer-wise.

Also, Physics.Raycast() is one of the worst most heavily-overloaded functions. I always recommend explicitly naming all your arguments to make sure you are passing what you expect, like so:

        RaycastHit hitInfo;
        if (Physics.Raycast(ray: theRay, hitInfo: out hitInfo, maxDistance: 4, layerMask: myMask))
        {
        }