Improving standard script DragRigidbody.js

Hi,


I'd like to achieve very similar behavior like when using script DragRigidbody.js from Standard Assets/Scripts/General Scripts which I added to my prefab objects.

The thing is, when I use it once on the object, it's like its physical properities have changed: it falls differently under gravity than it used to.

I'd like to just move the objects by dragging when mouse button pressed, like acting with a force in the direction where I pull mouse coursor; it supposed to respect gravity, so after movement stops (= force isn't working anymore), it falls down normally under gravity or (in case I still press my mouse button down but coursor isn't moving) it hangs in the air along the Z axis.

I've tried achieving something similar by applying forces and torque to prefabs' rigidbody, but it isn't convenient to use it in this manner:

Code (CSharp):

1. //FixedUpdate() for physically realistic simulation
2.     public float force;
3.     public float rotationSpeed;
4.     int rotationMode = 0;
5.  
6.     void FixedUpdate()
7.     {
8.         //AXIS MOVEMENT
9.         //X axis
10.         if (Input.GetKey(KeyCode.Q))
11.             rigidbody.AddForce(Vector3.right * force);
12.      
13.         if (Input.GetKey(KeyCode.A))
14.             rigidbody.AddForce(Vector3.left * force);
15.  
16.         //Y axis
17.         if (Input.GetKey(KeyCode.W))
18.             rigidbody.AddForce(Vector3.up * force);
19.      
20.         if (Input.GetKey(KeyCode.S))
21.             rigidbody.AddForce(Vector3.down * force);
22.      
23.         //Z axis
24.         if (Input.GetKey(KeyCode.E))
25.             rigidbody.AddForce(Vector3.forward * force);
26.      
27.         if (Input.GetKey(KeyCode.D))
28.             rigidbody.AddForce(Vector3.back * force);
29.  
30.         //ROTATIONS: click middle button to select rotation axis; default: x
31.         switch(rotationMode)
32.         {
33.         case 0:
34.             if (Input.GetMouseButton(0))    //left button - rotate counterclockwise
35.             {
36.                 rigidbody.AddTorque (new Vector3 (-rotationSpeed, 0, 0));
37.             }
38.          
39.             if (Input.GetMouseButton(1))    //right button - rotate clockwise
40.             {
41.                 rigidbody.AddTorque (new Vector3 (rotationSpeed, 0, 0));
42.             }
43.             break;
44.         case 1:
45.             if (Input.GetMouseButton(0))    //left button - rotate counterclockwise
46.             {
47.                 rigidbody.AddTorque (new Vector3 (0, -rotationSpeed, 0));
48.             }
49.          
50.             if (Input.GetMouseButton(1))    //right button - rotate clockwise
51.             {
52.                 rigidbody.AddTorque (new Vector3 (0, rotationSpeed, 0));
53.             }
54.             break;
55.         case 2:
56.             if (Input.GetMouseButton(0))    //left button - rotate counterclockwise
57.             {
58.                 rigidbody.AddTorque (new Vector3 (0, 0, -rotationSpeed));
59.             }
60.          
61.             if (Input.GetMouseButton(1))    //right button - rotate clockwise
62.             {
63.                 rigidbody.AddTorque (new Vector3 (0, 0, rotationSpeed));
64.             }
65.             break;
66.         }
67.     }
68.  
69.     void rotationAxisControl()
70.     {
71.         if (rotationMode == 2)
72.             rotationMode = -1;
73.  
74.         if(Input.GetMouseButton(2))
75.            rotationMode++;
76.     }
77.  
78.     void Update()
79.     {
80.         rotationAxisControl();
81.     }

But the behaviour was like expected. I just don't know how to implement it in respect to mouse coursor position. At first I thought that mayby I could destroy the sprint joints created with DragRigidbody.js, but I immedietely noticed that it would still behave in this "feather-like" manner when mouse button pressed.