Player position input touch

Questions & Answers
1

Hello everyone how are you? I have a problem with my project, I put a script to move the player with touch in the screen but when i touch and moved with two fingers, when i release one finger the player teleport to the position of the other finger.

Here’s my script

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MoveMobile : MonoBehaviour
{

    private float deltaX, deltaY;
    private Rigidbody2D rb;

    Player player;

    // Update is called once per frame
    private void Start()
    {
        player = GetComponent<Player>();
        rb = GetComponent<Rigidbody2D>();
    }
    private void Update()
    {
        if(Input.touchCount > 0)
        {

            Touch touch = Input.GetTouch(0);

            Vector2 touchPos = Camera.main.ScreenToWorldPoint(touch.position);

            switch (touch.phase)
            {
                case TouchPhase.Began:

                    player.StopShootMobile();
                    deltaX = touchPos.x - transform.position.x;
                    deltaY = touchPos.y - transform.position.y;
                    player.ShootMobile();
                    break;

                case TouchPhase.Moved:
                    rb.MovePosition(new Vector2(touchPos.x - deltaX, touchPos.y - deltaY));
                    break;

                case TouchPhase.Ended:
                    rb.velocity = Vector2.zero;
                    player.StopShootMobile();
                    break;
            }
        }
    }

    
}
2

One solution is to have a variable

private int currentFingerID;

and store it at

TouchPhase.Began

with

currentFingerID = touch.fingerID;

Check that the touch is the same one as when you first detected a touch before you move:

if (touch.fingerId == currentFingerID)
{
    rb.MovePosition(new Vector2(touchPos.x - deltaX, touchPos.y - deltaY));
}