Swiping (Fruit Ninja Style)

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
[RequireComponent(typeof(TrailRenderer), typeof(BoxCollider))]

public class ClickAndSwipe : MonoBehaviour
{
    private GameManager gameManager;
    private Camera cam;
    private Vector3 mousePos;
    private TrailRenderer trail;
    private BoxCollider col;
    private bool swiping = false;

    // Start is called before the first frame update
    void Awake()
    {
        cam = Camera.main;
        trail = GetComponent<TrailRenderer>();
        col = GetComponent<BoxCollider>();
        trail.enabled = false;
        col.enabled = false;

        gameManager = GameObject.Find("Game Manager").GetComponent<GameManager>();

    }

    // Update is called once per frame
    void Update()
    {
        if (gameManager.isGameActive)
        {
            if(Input.GetMouseButtonDown(0))
            {
                swiping = true;
                UpdateComponents();
            }
            else if (Input.GetMouseButtonUp(0))
            {
                swiping = false;
                UpdateComponents();
            }

            if (swiping)
            {
                UpdateMousePosition();
            }
        }
    }

    void UpdateMousePosition()
    {
        mousePos = cam.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 10.0f));
        transform.position = mousePos;
    }

    void UpdateComponents()
    {
        trail.enabled = swiping;
        col.enabled = swiping;

    }

    private void OnCollisionEnter(Collision collision)
    {
        if(collision.gameObject.GetComponent<Targets>())
        {
            collision.gameObject.GetComponent<Targets>().DestroyTarget();
        }
    }
}

//in the targets script add this and comment out this

 /* private void OnMouseDown()
    {
        if (gameManager.isGameActive)
        {
            Destroy(gameObject);
            gameManager.UpdateScore(pointValue);
            Instantiate(explosiveParticle, transform.position, explosiveParticle.transform.rotation);
        }
    }*/
    // mouse click destroys object and adds score and does particles
    public void DestroyTarget()
    {
        if (gameManager.isGameActive)
        {
            Destroy(gameObject);
            gameManager.UpdateScore(pointValue);
            Instantiate(explosiveParticle, transform.position, explosiveParticle.transform.rotation);
        }

    }