How could I transform keyboard input into touch input?

Question

Hello! I'm making a racing game and I wanted to port it over to mobile, but I'm having a lot of trouble trying to figure out the best way to do it. Initially, I thought that simulating a keypress with a UI button would work well but thanks to the help of @Hellium I'm now trying to figure out another way to port this game over. Here is the current code for the BaseInput: using UnityEngine; namespace KartGame.KartSystems { public struct InputData { public bool Accelerate; public bool Brake; public float TurnInput; }

      public interface IInput
      {
          InputData GenerateInput();
      }
  
      public abstract class BaseInput : MonoBehaviour, IInput
      {
          /// <summary>
          /// Override this function to generate an XY input that can be used to steer and control the car.
          /// </summary>
          public abstract InputData GenerateInput();
      }
  }

And here is the keyboard input script, these "horizontal", "accelerate" and "brake" buttons are all referencing to Unity's input manager, as you can see in the image attached!

Unity's input manager, referencing the Horizontal movement (left and right) in the standard WASD configuration

 using UnityEngine;
 
     namespace KartGame.KartSystems {
     
         public class KeyboardInput : BaseInput
     
         {
             public string TurnInputName = "Horizontal";
             public string AccelerateButtonName = "Accelerate";
             public string BrakeButtonName = "Brake";
     
             public override InputData GenerateInput() {
                 return new InputData
                 {
                     Accelerate = Input.GetButton(AccelerateButtonName),
                     Brake = Input.GetButton(BrakeButtonName),
                     TurnInput = Input.GetAxis("Horizontal")
                 };
             }
         }
     }

What would be the best way to change this keyboard input method to a mobile-compatible one? Ideally, I would like a joystick for movement but left and right buttons would also be fine. Thanks again @Hellium for the help with the previous incorrect question that I've made!

Answer 1

Best Answer

Answer by Hellium · Jan 27 at 09:06 AM

The solution I suggested in the other question works perfectly fine

UiInput.cs

To be attached to an empty gameObject

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class UiInput : BaseInput
 {
     private bool accelerate;
     private bool brake;
     private float turn;
 
     // Called by OnPointerDown event from Even Trigger attached to UI object
     // https://youtu.be/3NBYqPAA5Es?t=194
     public void StartAccelerate() => accelerate = true;
 
     // Called by OnPointerUp event from Even Trigger attached to UI object
     // https://youtu.be/3NBYqPAA5Es?t=194
     public void StopAccelerate() => accelerate = false;
 
     public void StartBrake() => brake = true;
     public void StopBrake() => brake = false;
 
     public void StartTurnLeft() => turn = Mathf.Max(turn - 1, -1);
     public void StopTurnLeft() => turn = Mathf.Min(turn + 1, 1);
 
     public void StartTurnRight() => turn = Mathf.Min(turn + 1, 1);
     public void StopTurnRight() => turn = Mathf.Max(turn - 1, -1);
 
     public override InputData GenerateInput()
     {
         return new InputData
         {
             Accelerate = accelerate,
             Brake = brake,
             TurnInput = turn
         };
     }
 }

Then, for every UI button, attach an event trigger and provide the appropriate function

Example for the accelerate button:

alt text

uiinput.png (18.3 kB)

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vituba2202 · Jan 27 at 02:51 PM 0

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What do I do about this errors? error messages

example.png (27.1 kB)

Hellium vituba2202 · Jan 27 at 03:30 PM 0

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Put the class in the KartGame.KartSystems namespace

vituba2202 Hellium · Jan 27 at 05:49 PM 0

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I've done everything exactly as you specified and it is still not working, the buttons aren't doing anything when pressed, what am I doing wrong? What information could I provide you to help you troubleshoot this?

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How could I transform keyboard input into touch input?

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UiInput.cs

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