Virtual keySystem

Unity Engine
1

I have using unity for a week now. and when I want to export to android I forgot that I have to use a virtual key .-.
how could you make a virtual key system in unity?

u just add a sprite into scene, and give an invisible map for the trigger.
or can I just click on the sprite without using an invisible map?

and how u make invisible mapping? .-.
so when you touch left side the player walks left, and vice versa.

thanks for any help :smile:

2

You could technically use an invisible mapping on the screen and listen for touch events on these invisible objects (which must at least have a collider on them to receive clicks or touches). I think this method is over complicated though.

An alternative would be to listen for touch events on each side of the screen and act accordingly to each event. Here’s some sample code to get you started:

using UnityEngine;
using System.Collections;

public class TouchMovement : MonoBehaviour {

    private float w;
    private float h;

	void Start () {
        // Screen width and height
	    w = Screen.width;
        h = Screen.height;
	}
	
	void Update () {
        int i = 0;

        // Loop over every touch found
        while (i < Input.touchCount)
        {
            // Is this the beginning phase of the touch?
            if (Input.GetTouch(i).phase == TouchPhase.Began)
            {
                // Does the touch happens on the right side of the screen?
                if (Input.GetTouch(i).position.x > w / 2) {
                    // Move your character right
                    
                }

                // Does the touch happens on the left side of the screen?
                if (Input.GetTouch(i).position.x < w / 2){
                    // Move your character left
                    
                }
            }
            ++i;
        }
	}
}

Let me know if you have any questions! :slight_smile: