Question Changing Rigidbody Variable With Raycasting

Please forgive me but I am a total newbie to Unity and understand very little about C#. Anyway, I have multiple rigidbodies in a scene and am using a raycast function that returns rigidbody info and stores it inside of a variable (Clearly I copy and pasted this from some other post)

public Rigidbody GetRigidbodyFromMouseClick()
{
RaycastHit hitInfo = new RaycastHit();
Ray ray = targetCamera.ScreenPointToRay(Input.mousePosition);
bool hit = Physics.Raycast(ray, out hitInfo);
if (hit)
{
if (hitInfo.collider.gameObject.GetComponent<Rigidbody>())
{
selectionDistance = Vector3.Distance(ray.origin, hitInfo.point);
originalScreenTargetPosition = targetCamera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, selectionDistance));
originalRigidbodyPos = hitInfo.collider.transform.position;
return hitInfo.collider.gameObject.GetComponent<Rigidbody>();
}

}

return null;
}

This is then utilized with

if (Input.GetMouseButtonDown(0))
{
m_Rigidbody = GetRigidbodyFromMouseClick();
}

So in the inspector, the rigidbody variable is populated with the rigidbody that was raycasted; this is what I want. I want to use this to press a button to rotate the selected Rigidbody. I also want this rigidbody to become deselected when anywhere else on the screen is clicked. My problem is that when I press my button, the rigidbody becomes deselected so I cannot use it to rotate my rigidbodies. Am I missing something? Is there a better way around accomplishing what I want?

Thanks in advance.

 

First of all, from the code you posted here it seems like you can massively simplify your method:

Code (CSharp):

1. var ray = targetCamera.ScreenPointToRay(Input.mousePosition);
2. if(Physics.Raycast(ray, out var hitInfo))
3. {
4.     return hitInfo.rigidbody;
5. }
6.  
7. return null;

(Don't feel bad, you'll get there too one day.)

Now for the rest of your issue... I'm didn't understand from your explanation how you would rotate the rigidbody. Like, do you want to use A and D when the rigidbody is selected or something? Could you please elaborate?