How do I use the rear touch pad?

How do I use the rear touch pad? I want to use it so it'll work in place of the mouse in this script:

using UnityEngine;
using System.Collections;

public class Rotate: MonoBehaviour {

public int rotationOffset = 90;

void Update () {

Vector3 difference = Camera.main.ScreenToWorldPoint (Input.mousePosition) - transform.position;
difference.Normalize ();

float rotZ = Mathf.Atan2 (difference.y, difference.x) * Mathf.Rad2Deg;
transform.rotation = Quaternion.Euler (0f, 0f, rotZ + rotationOffset);
}
}

 

The rear touch pad is implemented through the UnityEngine.PSM.PSMInput class. For example, to iterate through each of current touch you would use the code:


using UnityEngine.PSM;
void OnGUI () {
foreach (Touch touch in PSMInput.touchesSecondary)
{
Vector2 pos = touch.position;
GUI.Label(new Rect(pos.x, Screen.height - pos.y, 50, 30), "(X) #" + touch.fingerId);
}
}

 

Thanks for the help, but because I'm a C# noob, I don't know how to use this in place of the mouse for my script.

 

Maybe try something like this:

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4. using UnityEngine.PSM;
5.  
6.  
7. public class Rotate : MonoBehaviour
8. {
9.  
10.     public int rotationOffset = 90;
11.  
12.     void Update()
13.     {
14.         foreach (Touch touch in PSMInput.touchesSecondary)
15.         {
16.             if (touch.fingerId == 0)
17.             {
18.                 Vector3 difference = Camera.main.ScreenToWorldPoint(Input.mousePosition) - transform.position;
19.                 difference.Normalize();
20.  
21.                 float rotZ = Mathf.Atan2(difference.y, difference.x) * Mathf.Rad2Deg;
22.                 transform.rotation = Quaternion.Euler(0f, 0f, rotZ + rotationOffset);
23.             }
24.         }
25.     }
26. }

 

Thanks, DanielSnd!
I have one last question, but it's so small and easy that I don't think it would be a good idea to create a new thread for it. I want to know how I can use the right joystick for my rotation script. I figured out why almost no games (I've played) use the rear touch pad.

 

Set those on your Input Manager

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4. using UnityEngine.PSM;
5.  
6.  
7. public class Rotate : MonoBehaviour
8. {
9.  
10.     public int rotationOffset = 90;
11.  
12.     void Update()
13.     {
14.         // See InputManager (Edit > Project > Input) for mapping from <string> to <axis>
15.         float x = Input.GetAxis("RightStickH");
16.         float y = Input.GetAxis("RightStickV");
17.  
18.         Vector3 difference = new Vector3(x, y, 0);
19.  
20.         float rotZ = Mathf.Atan2(difference.y, difference.x) * Mathf.Rad2Deg;
21.         transform.rotation = Quaternion.Euler(0f, 0f, rotZ + rotationOffset);
22.     }
23. }

 

Thank you very much! I appreciate the quick response also!