How do I make a game object follow my mouse position with a rigidbody2D?-CodePudding

I started a new game project, and I have tried to find a way to only use a rigidbody2D component to move my player game object instead of using transform.position. And I can't come up with a good way to do it or find a tutorial or documentation about it.

I have got it to work with transform.position, but how could I do it with rigidbody2D?

CodePudding user response：

For movement with RigidBody2D you have mutiple options which are physics based. I assume that's the reason you want to use RigidBody2D in the first place.

RigidBody2D obj = GetComponent();

private void moveBody()
{
  //direction towards your goal
  Vector2D v = mousePosition - transform.position;

  //Example 1 set the velocity 
  obj.velocity = v;

  //Example 2 apply force 
  obj.AddForce(v, ForceMode2D.Impulse);
}

you can read more about RigidBody2D movement here

CodePudding user response：

You can throw an invisible collider on your stage and move your object to the position you want with the ray.

Ray ray;
public RaycastHit hit;

private void Update()
{
    ray = Camera.main.ScreenPointToRay(Input.mousePosition);
    if (Physics.Raycast(ray, out hit, 100f))
    {
        Debug.DrawRay(Camera.main.transform.position,hit.point);

        transform.position = hit.point;
    }
}

Best.