Question Getting this code running in android ?

I am new to unity and idk much about programming so I wanna know the way of getting this code below to make work in android or touchscreen. I want to control this in touch screen in android :/

Code (CSharp):

1. using UnityEngine;
2.  
3.  
4. public class PlayerMovement : MonoBehaviour {
5.  
6.     // This is a reference to the Rigidbody component called "rb"
7.     public Rigidbody rb;
8.  
9.     public float forwardForce = 2000f;    // Variable that determines the forward force
10.     public float sidewaysForce = 500f;  // Variable that determines the sideways force
11.  
12.     // We marked this as "Fixed"Update because we
13.     // are using it to mess with physics.
14.     void FixedUpdate ()
15.     {
16.         // Add a forward force
17.         rb.AddForce(0, 0, forwardForce * Time.deltaTime);
18.  
19.         if (Input.GetKey("d"))    // If the player is pressing the "d" key
20.         {
21.             // Add a force to the right
22.             rb.AddForce(sidewaysForce * Time.deltaTime, 0, 0, ForceMode.VelocityChange);
23.         }
24.  
25.         if (Input.GetKey("a"))  // If the player is pressing the "a" key
26.         {
27.             // Add a force to the left
28.             rb.AddForce(-sidewaysForce * Time.deltaTime, 0, 0, ForceMode.VelocityChange);
29.         }
30.  
31.         if (rb.position.y < -1f)
32.         {
33.             FindObjectOfType<GameManager>().EndGame();
34.         }
35.     }
36. }
37.  

 

None of the above code will be useful for this because it is for keyboard.

Check out any random tutorial on mobile touchscreen DPADs.

You're also welcome to see some of my examples in my public proximity_buttons package.

Check out the space shooter and the twinstick game for virtual DPADs.

proximity_buttons is presently hosted at these locations:

https://bitbucket.org/kurtdekker/proximity_buttons

https://github.com/kurtdekker/proximity_buttons

https://gitlab.com/kurtdekker/proximity_buttons

https://sourceforge.net/projects/proximity-buttons/