OverlapSphere with Box Collider 2d

[Tomer-Barkan]

I’m trying the new 2D features of unity, and I create a sprite object, add a box collider 2D, and a simple script that uses OverlapSphere() to detect colliders. It returns 0 colliders, even when I attach this script to an object that has a collider attached to it:

// Use this for initialization
void Start () {
	Collider[] colliders = Physics.OverlapSphere(transform.position, 5);
	Debug.Log(colliders.Length + " colliders in range ");
}

Obviously, at least the object itself should appear in the results… Changing to regular box collider (3D) works fine.

Any ideas? Unity bug?

[gamenovice]

Along with collider2D, they also have the Physics2D library, you may be able to find the answer there. cheers mate

[Tomer-Barkan]

Apparently there’s a Physics2D class, which handles physics in 2D modes. There’s a matching Physics2D.OverlapCircleAll() which is the OverlapSphere equivalent of 2D.

I guess the most important thing I learned is to read the release notes which state the new classes for using 2D.