koobas.hobune.stream
How to use Physics.OverlapSphere with layer mask?
I faced some troubles about Physics.OverlapSphere(). I want my Physics.OverlapSphere() only detect the gameobject in the particular layer mask, if not it will detect everything including those gameobject that don't have rigidbody or collider.
I know can use layermask to fix this, but why it didn't detect the object I want?? here is the code...
neighbourObject = Physics.OverlapSphere(transform.position, sightRadius, 5);
ps: currently learning flocking, want to detect the neighbour around the boid, but failed...
please help and thank you.
Why not just use a Layer$$anonymous$$ask anyway and set it the way you want it in the inspector?
eg :
public Layer$$anonymous$$ask mask ;
public Collider[] cols ;
public float radius ;
void Whatever()
{
cols = Physics.OverlapSphere(transform.position, radius, mask) ;
}
I think the problem is the layer mask;
int layerId = 8;
int layerMask = 1 << layerId;
Collider[] colArr = Physics.OverlapSphere(transform.position, radius, ayerMask) ;
If you are using this for flocking overlap sphere may not be such a good idea if you are using it all the time. It is a costly operation.
