koobas.hobune.stream
RaycastHit2D hits "itself"
I have gameobjects with circle colliders, and walls with box colliders. I make raycast to detect if there is something in front:
RaycastHit2D hit = Physics2D.Raycast(transform.position, currentNode.position);
However when I write the name of gameobject which raycast is hit, it shows me that it hit itself. Do I need to disable my Collider and then enable it after raycast? I know that there is masking, but I can't use it, because other gameobjects will raycast too to detect this gameobject. Any Ideas?
Best Answer
you should put yourself on a layer ,make a new layer for example layer 8 and assign it to your object and then tell the raycast to do its job on all layers except your player layer, like below
int layerMask = 1 << 8;
// This would cast rays only against colliders in layer 8.
// But instead we want to collide against everything except layer 8. The ~ operator does this, it inverts a bitmask.
layerMask = ~layerMask;
RaycastHit hit;
// Does the ray intersect any objects excluding the player layer
if (Physics.Raycast(transform.position, transform.TransformDirection (Vector3.forward), out hit, Mathf.Infinity, layerMask))
My solution was to turn off the collider before the raycast and turn it on at the end:
for (int i = 0; i < sectorCount; i++)
{
locations [i].GetComponent<CircleCollider2D>().enabled = false;
RaycastHit2D hit = Physics2D.Raycast (locations [i].transform.position, Vector2.up);
.
.
stuff
.
.
locations [i].GetComponent<CircleCollider2D>().enabled = true;
}
Try using a Trigger Collider.
