Touch not recognized ever in Unity

Question

I have to convert my pong game from keyboard usage to touch based mechanics. However I am completely stuck trying to figure out Unity's touch mechanics. I have searched through the internet and everyone somehow keeps resolving the issue in ways that are still failing for me. Here is, from everything I have gathered, what I believe should work. This is in my update method so it is constantly checking this.

    Touch t;

void Update() {
    if (Input.touchCount > 0) {
        print("touch seen");
        t = Input.GetTouch(0);
    }
}

The if statement condition is never met no matter how many times I touch the screen. I am using a lenovo laptop that has a touch screen, maybe it is reading my touches as clicks? I just can't seem to figure it out. If I take away the if statement I get an ArrayIndexOutOfBounds Exception. Any help is extremely appreciated!

Update It is registering as a mouse click, and I can't just allow this because I need multiple touch inputs.

Answer 1

You can use Input.touchSupported to check if touch is supported on your computer. If it returns true , then read from touch with Input.GetTouch(0) . If it returns false , then use Input.GetMouseButtonDown to read from the mouse instead. Touch won't work if your computer does not support touch screen . Below is complete code on how to do this:

void Update()
{
 if (Input.touchSupported)
 {
    Debug.Log("TOUCH IS SUPPORTED");
    if ((Input.touchCount > 0) && (Input.GetTouch(0).phase == TouchPhase.Began))
    {
        print("touched screen");
    }
 }
 else
 {
    Debug.Log("TOUCH IS NOT SUPPORTED");
    if (Input.GetMouseButtonDown(0))
    {
        print("clicked screen");
    }
 }
}