Can't get name of 2D clicked object

I want to get the name of the gameobject I clicked. I attached a box collider 2d to it but it still doesn't print out.
This is the method called on left click :

void CastRay() {
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit2D hit = Physics2D.Raycast (ray.origin, ray.direction, Mathf.Infinity);
if (hit) {
Debug.Log (hit.collider.gameObject.name);
}
}


Thanks in advance

 

ScreenPointToRay

creates a 3D ray (has a z component).

Physics2D.Raycast

expects a 2D ray (no z component). There is no concept of intercepting a 3D ray on the 2D collider in Physics2D. Instead you should use

Physics2D.OverlapPoint

along with

ScreenToWorldPoint

(or raycast against a Plane and get the world point that way).

 

I tried this but it returns Null

void CastRay() {
Vector2 mouse_position = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Collider2D hit = Physics2D.OverlapPoint(mouse_position);

if (hit)
{
Debug.Log("Hit" + hit.transform.name);
}
else
{
Debug.Log(hit);
}
}

 

If you're using a perspective camera, then you need to pass in your camera's Z offset to the vector you pass to ScreenToWorldPoint.

 

Could you please show me how.

 

Also the camera is in orthographic mode not perspective.

 

Ensure that the overlap position is what you expect it to be. You can use the Debug.DrawLine or Debug.DrawRay methods for this purpose. If it is, then make sure that you've configured your object correctly, and you're actually clicking on what you think you're clicking on, and that the object has a collider, and is under the mouse.