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Question by Sh_king03 · Jul 19, 2020 at 05:09 AM · androidunity 52dtouchtouch controls

Error : The second touch should not work at all. How do I fix this error?,Error: The second touch should not work at all. How do I fix this error?

I have an item that should follow the touch of a finger. But when I touch the screen for the second time and remove the first finger, the object immediately goes to the second finger.

Please see the picture for a complete description:

alt text

Immediately write that these lines of code don't work :

  1.   if(Input.touchCount == 1)
    
    
  2.   Input.multiTouchEnabled = false;
    
    

This is my code:

 using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.EventSystems;
 
 public class DragDrop : MonoBehaviour
 {
  private Vector3 _mOffset;
  private float _mZCoord;
 
  private void OnMouseDown()
  {    
     _mZCoord = Camera.main.WorldToScreenPoint(gameObject.transform.position).z;
     _mOffset = gameObject.transform.position - GetMouseWorldPos();
  }
  private Vector3 GetMouseWorldPos()
  {
         var touchPointV2 = Input.GetTouch(0).position; 
         Vector3 touchPointV3 = new Vector3(touchPointV2.x, touchPointV2.y);
         touchPointV3.z = _mZCoord;
         return Camera.main.ScreenToWorldPoint(touchPointV3);
  }
 
  void OnMouseDrag()
  {
     Debug.Log("Run  -  OnMouseDrag");
     transform.position = GetMouseWorldPos() + _mOffset;
  }
 }


,I have an item that should follow the touch of a finger. But when I touch the screen for the second time and remove the first finger, the object immediately goes to the second finger.

Please see the picture for a complete description:

alt text

Immediately write that these lines of code don't work :

  1.   if(Input.touchCount == 1)
    
  2.   Input.multiTouchEnabled = false;
    
    

This is my code:

 using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.EventSystems;
 
 public class DragDrop : MonoBehaviour
 {
  private Vector3 _mOffset;
  private float _mZCoord;
 
  private void OnMouseDown()
  {    
     _mZCoord = Camera.main.WorldToScreenPoint(gameObject.transform.position).z;
     _mOffset = gameObject.transform.position - GetMouseWorldPos();
  }
  private Vector3 GetMouseWorldPos()
  {
         var touchPointV2 = Input.GetTouch(0).position; 
         Vector3 touchPointV3 = new Vector3(touchPointV2.x, touchPointV2.y);
         touchPointV3.z = _mZCoord;
         return Camera.main.ScreenToWorldPoint(touchPointV3);
  }
 
  void OnMouseDrag()
  {
     Debug.Log("Run  -  OnMouseDrag");
     transform.position = GetMouseWorldPos() + _mOffset;
  }
 }

all.jpg (416.6 kB)
all.jpg (416.6 kB)
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