RayCast2d Not colliding with objects in other layers

Questions & Answers
1

I have the following code. My player and certain objects are in PlayerAndEnemies. I have a tilemap2d (which is what I want the raycast to hit) but it does not collide with it. The tilemap 2d does have a tilemap collider and is in other layers (such as default, and others I created). Can anyone point me in the direction for why this would not collide?

Movement movement = player.GetComponent<Movement>();
                RaycastHit2D hit;
                int layerMask = LayerMask.GetMask("PlayerAndEnemies");
                //layerMask = ~layerMask;

                if (movement.directionFacing == 0)
                {
                    hit = Physics2D.Raycast(player.transform.position, Vector2.down, 100f, layerMask);
                } else if (movement.directionFacing == 1)
                {
                    hit = Physics2D.Raycast(player.transform.position, Vector2.up, 100f, layerMask);
                } else if (movement.directionFacing == 2)
            {
                hit = Physics2D.Raycast(player.transform.position, Vector2.left, 100f, layerMask);
            } else // 3
            {
                hit = Physics2D.Raycast(player.transform.position, Vector2.right, 100f, layerMask);
            }
            //Debug.DrawRay(hit, Color.red);
            //Check distance of raycast
            print(hit.distance);
            print(hit.collider);
2

A raycast looks for gameobecjts. If you have specified a layermask, then it will only look for objects selected in that mask. A gameobject can only be in one layer. You would need to put the gameobject with the tilemap contains the tiles you wish to raycast against on a layer which is in your desired layer.