Drag Rigidbody

This was answered here: http://forum.unity3d.com/threads/56460-Drag-Rigidbody-script-works-but-passes-through-collider

If DragRigidBody doesn't work for what you need, try using Erich5h5's DragObject script: http://wiki.unity3d.com/index.php?title=DragObject

I'm actually going to attempt this myself now.

Here, i wrote a very simple script for dragging any Object with the rigidbody component. I hope i could help you.

using UnityEngine; using System.Collections;

public class DragRigidbody : MonoBehaviour {

 public float catchingDistance = 3f;

 bool isDragging = false;
 GameObject draggingObject;

 // Use this for initialization
 void Start()
 {

 }

 // Update is called once per frame
 void Update()
 {

     if (Input.GetMouseButton(0))
     {
         if (!isDragging)
         {
             draggingObject = GetObjectFromMouseRaycast();
             if (draggingObject)
             {
                 draggingObject.GetComponent<Rigidbody>().isKinematic = true;
                 isDragging = true;
             }
         }
         else if (draggingObject != null)
         {
             draggingObject.GetComponent<Rigidbody>().MovePosition(CalculateMouse3DVector());
         }
     }
     else {
         if (draggingObject != null)
         {
             draggingObject.GetComponent<Rigidbody>().isKinematic = false;
         }
         isDragging = false;
     }
 }



 private GameObject GetObjectFromMouseRaycast()
 {
     GameObject gmObj = null;
     RaycastHit hitInfo = new RaycastHit();
     bool hit = Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out hitInfo);
     if (hit)
     {
         if (hitInfo.collider.gameObject.GetComponent<Rigidbody>() &&
             Vector3.Distance(hitInfo.collider.gameObject.transform.position,
             transform.position) <= catchingDistance)
         {
             gmObj = hitInfo.collider.gameObject;
         }
     }
     return gmObj;
 }

 private Vector3 CalculateMouse3DVector()
 {
     Vector3 v3 = Input.mousePosition;
     v3.z = catchingDistance;
     v3 = Camera.main.ScreenToWorldPoint(v3);
     Debug.Log(v3); //Current Position of mouse in world space
     return v3;
 }

}