Question Detect Touch Tap and Double Tap

Quick question guys,
I found a way to get Tap and Double tap. But can't figure out how to prevent single tap when I double taping ?
Any help much appreciated .

Thanks

Code (CSharp):

1. private void HandleTapInput()
2.     {
3.         if (Input.touchCount == 1)
4.         {
5.             if (!EventSystem.current.IsPointerOverGameObject(Input.GetTouch(0).fingerId))
6.             {
7.                 // Check touch time
8.                 if (Input.GetTouch(0).phase == TouchPhase.Began)
9.                 {
10.                     touchTime = Time.time;
11.                 }
12.  
13.                 // Check touch end time
14.                 if (Input.GetTouch(0).phase == TouchPhase.Ended && !isDoubleTap)
15.                 {
16.                     touchEndTime = Time.time;
17.  
18.                     // if within tap threshold do tap
19.                     if (touchEndTime - touchTime < tapThreshold)
20.                     {
21.                         // Tap
22.                         Debug.Log("Tap at position:" + Input.GetTouch(0).position);
23.                         OnTapInputHandler?.Invoke(Input.GetTouch(0).position);
24.                     }
25.                 }
26.             }
27.         }
28.     }
29.  
30.     // Handle double tap usualy for edit mode, double tap to remove or add
31.     private void HandleDoubleTap()
32.     {
33.         if (Input.touchCount == 1)
34.         {
35.             if (!EventSystem.current.IsPointerOverGameObject(Input.GetTouch(0).fingerId))
36.             {
37.                 if(Input.GetTouch(0).tapCount == 2 && Input.GetTouch(0).phase == TouchPhase.Began)
38.                 {
39.                     //Handle double tap
40.                     Debug.Log("Double Tap at position:" + Input.GetTouch(0).position);
41.                     OnDoubleTapInputHandler?.Invoke(Input.GetTouch(0).position);
42.                 }
43.             }
44.         }
45.     }

 

The only way to check this is to delay the functionality of your single tap until after it's released or the time between double tap expires. You'll probably have to play around with a time that feels comfortable.

 

I also thought about something like this. But I think I need to sort my tap count and use it as bool after. I want tap or double tap to be executed in Phase.Ended.

Code (CSharp):

1. if(Input.touchCount == 1)
2.         {
3.             if(Input.GetTouch(0).phase == TouchPhase.Began)
4.             {
5.                 tapCount++;
6.                 touchTime = Time.time;
7.             }
8.  
9.             if(Input.GetTouch(0).phase == TouchPhase.Ended)
10.             {
11.                 if (tapCount == 1)
12.                 {
13.                     touchEndTime = Time.time;
14.  
15.                     if (touchEndTime - touchTime < tapThreshold)
16.                     {
17.                         Debug.Log("Single Tap");
18.                     }
19.                 }
20.  
21.                 if (tapCount == 2)
22.                 {
23.                     Debug.Log("Double Tap");
24.                 }
25.             }
26.        
27.         }

 

The problem is I need to get time elapsed from first to second tap. If time between first and second is grater then double tap threshold = do single tap

 

Oh, after sometime of searching and learning about tapCount and Coroutines I finally got a very simple solution. Works on iOs and Android

Code (CSharp):

1. public class DoubleTap : MonoBehaviour
2. {
3.     private float doubleTapThreshold = 0.3f;
4.     private int tapCount;
5.  
6.     IEnumerator SingleOrDoubleTap()
7.     {
8.         yield return new WaitForSeconds(doubleTapThreshold);
9.  
10.         if (tapCount == 1)
11.         {
12.             Debug.Log("SingleTap");
13.             tapCount = 0;
14.         }
15.         else if (tapCount == 2)
16.         {
17.             Debug.Log("Double Tap");
18.             tapCount = 0;
19.         }
20.  
21.     }
22.  
23.     private void Update()
24.     {
25.         if (Input.touchCount == 1)
26.         {
27.             if (Input.GetTouch(0).phase == TouchPhase.Ended)
28.             {
29.                 tapCount++;
30.                 StartCoroutine(SingleOrDoubleTap());
31.             }
32.         }
33.  
34.     }
35. }