koobas.hobune.stream
Unity Overlap Point Causing Error
I have this code, and it's suppose to get the position of the mouse to pick up an object in a 2d space but everytime I go to pick up an object I get an error at the Physics2D.OverlapPoint. The error is a null reference exception saying the object reference is not set to an instance of an object. I tried Google but couldn't find anything. Thank you.
private bool simStarted = false;
[SerializeField] private GameObject grabbedObject = null;
[SerializeField] private Camera cam;
private void Update()
{
if(!simStarted)
{
if(Input.GetKeyDown(KeyCode.Mouse0) && grabbedObject == null)
{
Vector2 mousePos = Input.mousePosition;
Vector2 mouseWorldPos = cam.ScreenToWorldPoint(mousePos);
Debug.Log(mouseWorldPos);
//ERROR if(Physics2D.OverlapPoint(mouseWorldPos, 8).gameObject != null)
{
grabbedObject = Physics2D.OverlapPoint(mouseWorldPos, 8).gameObject;
}
Debug.Log("Nothing");
}
else if(Input.GetKeyDown(KeyCode.Mouse0) && grabbedObject != null)
{
grabbedObject.transform.position = new Vector3(Mathf.Round(transform.position.x), Mathf.Round(transform.position.y), 0);
grabbedObject = null;
}
if(grabbedObject != null)
{
grabbedObject.transform.position = Input.mousePosition;
}
}
}
}
