Programmatically attach two objects with a hinge joint - unity3d

Question

I have a ball that is attached to the bottom of a bar with a hinge joint that is swinging back and forth. The hinge joint is on the ball and attaches to the bar. When I tap the screen the hinge joint on the ball is destroyed and depending on the position of the ball will throw it using the built in physics.
I want to collide with another swinging bar and attach to it with a hinge joint. So basically a swinging game for a ball where you swing from bar to bar.
I can destroy the hinge joint just fine. How do I reattach it to the object it has collided with? I have the following:
Attach ball:
using UnityEngine;
using System.Collections;
public class attachBall : MonoBehaviour {
public GameObject player;
void OnTriggerEnter2D(Collider2D collider) {
if (collider.tag == "Player")
{
print ("COLLISION DETECTED!");
player.AddComponent<HingeJoint2D>();
}
}
}
Release ball:
using UnityEngine;
using System.Collections;
public class releaseBall : MonoBehaviour {
public GameObject player;
void Update(){
if (Input.GetMouseButtonDown (0)) {
Destroy(player.GetComponent("HingeJoint2D"));
}
}
}
I have placed a 2d circle collider on both the ball and the bar it is to collide with. It has a collision but when it does it locks the ball in place. I want it to attach to the bar it has collided with and swing with it.

Answer 1

Figured it out.
I had the script on the rope originally but I moved it to the ball.
Then I find the gameobject with the tag "Player" to re-attach the hinge joint to the ball.
Then I defined the object that I collided with and place it in the GameObject "rope".
Then I had to define the hinge I added and the rigidbody already attached to the rope.
After setting it as the connectedBody I moved the connected anchor to be on the end of the rope.
And voila. Ball swings on the rope.
using UnityEngine;
using System.Collections;
public class attachBall : MonoBehaviour {
public GameObject player;
public GameObject rope;
public HingeJoint2D hinge;
public Rigidbody2D rb;
public bool attached = false;
void OnTriggerEnter2D(Collider2D collider) {
if (collider.tag == "rope" && !attached)
{
Debug.Log ("collision");
attached = true;
player = GameObject.FindGameObjectWithTag ("Player");
player.AddComponent<HingeJoint2D> ();
rope = collider.gameObject;
hinge = player.GetComponent<HingeJoint2D>();
rb = rope.GetComponent<Rigidbody2D>();
hinge.connectedBody = rb;
hinge.connectedAnchor = new Vector2(0,-2.5f);
}
}
}