Unity Touch Count 忽略 Ui 输入

Question

I have a simple game where when user touches the screen, player jumps. I have implemented this using touchCount as when touchCount =1 then player jumps. But the problem is that there is a button on the screen so when user presses a button, touchCount is validated and player jumps. So how to enable player jump only when user is touching the non ui part of the screen. Thanks in advance.

Answer 1

This is for android right?>

I'd recommend using ui buttons built in to unity to define the active position, this should autometically work for android I think.

or u could make an if statement for the position of the touch so if the position is lower or higher than a certain point it will not activate.

Answer 2

You can add a check if the touch is happening on UI using EventSystem.current.IsPointerOverGameObject

Example usage from the API:

// Check if there is a touch
if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began)
{
    // Check if finger is over a UI element
    if (EventSystem.current.IsPointerOverGameObject(Input.GetTouch(0).fingerId))
    {
        Debug.Log("Touched the UI");
    }
}

Using Linq Where you can then use this condition as a filter in order to only take into account those touches that are not over UI using eg

// Get all touches that are NOT over UI
var validTouches = Input.touches.Where(touch => !EventSystem.current.IsPointerOverGameObject(touch.fingerId)).ToArray();

// This is basically a shortcut for writing something like
//var touchesList = new List<Touch>();
//foreach(var touch in Input.touches)
//{
//    if(!EventSystem.current.IsPointerOverGameObject(touch.fingerId))
//    {
//         touchesList.Add(touch);
//    } 
//}
//var validTouches = touchesList.ToArray();

if(validTouches.Length == 1)
{
    // Your jump here
}