pulling an object off the ground and containing it

i want to be able to pull objects towards the playing and the following code is working fine except when there is an overhang between the player and object

Code (CSharp):

1.     private void FixedUpdate()
2.     {
3.         //Frame-rate independent for physics calculations and anything that runs at fixed rate.
4.  
5.         if (_PullAnimationIsPulling && _HitTargetGO)
6.             PullHitTargetGOTowardsPlayersRWrist();
7.     }
8.     public void PullHitTargetGOTowardsPlayersRWrist()
9.     {
10.         if (_DistancePlayerToHitTarget <= _NewDistancePlayerToHitTarget)
11.         {
12.             ClearNewDistancePlayerToHitTarget(); // got there so stop moving
13.             return;
14.         }
15.  
16.         Rigidbody rb = _HitTargetGO.transform.GetComponent<Rigidbody>();
17.  
18.         const float speed = 60f;
19.         Vector3 direction = _pc._wristR.position - _HitTargetGO.transform.position;
20.         Vector3 movingStep = direction.normalized * speed;
21.         //Debug.Log("PullRopeSMB movingStep=" + movingStep);
22.         rb.AddForceAtPosition(movingStep, _ActiveArrow.transform.position, ForceMode.Impulse);
23.     }

the problem is if i am up on a ledge, i can pull the object towards me but after the effect of the impulse fades away, the object falls back to the ground.

how would i constrain it so it stay stays say a fixed distance from the player?

by the way, _ActiveArrow is a child of the thing i'm pulling (was parented when i hit the thing) and the point at which i want the thing constrained. maybe i can somehow freeze the position of that?
thanks

ops, i meant the title to say constraining it, can't fix

 

There are a bunch of ways you could do it:

- You could activate the constraints on the RigidBody component.
- You could disable gravity on the object and set its velocity to zero. You could then keep updating the object's position to match a target transform if the point of constraint is moving
- You could write a PID script and give it the desired location, for a smoother moving constraint.

Not sure if that answers your question, as its a little hard to decipher exactly what your setup is, but hopefully it provokes some thought.