adding Momentum to orbiting camera

I am struggling with this a bit..from the script below, anyone know how i can add some momentum to the orbiting camera?

right now when I drag it around it works ok, but when i let go of the mouse I would like it to continue orbiting for a second longer and slow down.

Code (csharp):

1. if (Input.GetMouseButton(0)){
2.                
3.  
4.     if (target) {
5.        
6.         x += Input.GetAxis("Mouse X") * xSpeed * 0.02;
7.         y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02;
8.        
9.      
10.      
11.            
12.         y = ClampAngle(y, yMinLimit, yMaxLimit);
13.         velocity = Input.GetAxis("Mouse X") * xSpeed;
14.        
15.          
16.     }
17.    
18. }
19.  
20.  
21.  
22.        
23.         distanceCurrent = Mathf.Clamp(distanceCurrent, distanceMin, distanceMax);
24.    
25.         rotation = Quaternion.Euler(y, x, 0);
26.         position = rotation * Vector3(0.0, 0.0, -distanceCurrent ) + target.position;
27.        
28.        
29.        transform.rotation = rotation;
30.        transform.position = position;
31.        

 

i am interested in this too...

 

hmm. spent few hours and got unacceptable results..

 

I've attached a simple variable momentum script to this post. It gives much the same effect as the smoothing applied by Input.GetAxis but you can apply it to any input value so you can use it in cases where GetAxis isn't available. Also, it is a bit more flexible than the input axes in that you can set the minimum and maximum values to be anything you want and also set the attack and decay values independently. Sustain and release are not currently implemented ;-)

For the camera momentum, you should pass in the values obtained from the mouse movement and use the value returned by GetValue as the amount to move the camera. If you do this on each frame (including frames where there is no mouse movement) you should get the right effect, although you may need to play with the attack and decay values to get the behaviour you want.

 

thanks, i'll give this a try

 

Hi Andeeee,

It's me again!

This might be a silly question, but I've found this post with your file attached to it. But what do I do with this file? Do I just import this file in my Unity Project? And create a js file like you've described in your post at http://forum.unity3d.com/threads/83039-2d-topdown-iPhone-game-movement?

I've allready tried to connect the js file to the object I want to move, however it gives me the next error:

"The name Momentifier does not donate a valid type".

Can you please help me on the right way?

Thnx!

Douwe

 

@megadouwe: since this is a C# file, you need to put it in the Plugins folder to make the Momentifier class available to JS scripts. Otherwise, the usage is the same.

 

Aha! Thnx Andeeee! Will give it a try!!!