Card script which is sprite

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

public class CardScript : NetworkBehaviour
{
    public GameObject center;
    public Game _game;

    public GameObject _singleton;
    public Singleton _singletonScript;

    public GameObject[] Players;
    public GameObject Player;
    public Player _player;

    private SpriteRenderer spriteColor;

    public int C;
    public string cardName;
    public int cardScore;
    public int cardRank;
    public string cardSuit;
    public string turn;

    public bool isPossible;
    public bool spawnedCard;
    public bool deletedCard;
    public bool cat;
    public int whichCard;

    void Start ()
    {
        isPossible = false;
        deletedCard = false;
        cat = false;
        whichCard = 5;

        _game = GameObject.Find("Game").GetComponent<Game>();

        _singleton = GameObject.Find("SINGLETON");
        _singletonScript = _singleton.GetComponent<Singleton>();

        spriteColor = gameObject.GetComponent<SpriteRenderer>();

        turn = "First";

        if (Players != null)
        {
            Players = GameObject.FindGameObjectsWithTag("Player");
        }

    }

	void Update ()
    {
        if (Players != null)
        {
            Players = GameObject.FindGameObjectsWithTag("Player");
        }

        if (gameObject.name == "1(Clone)" || gameObject.name == "5(Clone)" || gameObject.name == "9(Clone)" || gameObject.name == "13(Clone)" || gameObject.name == "21(Clone)" || gameObject.name == "25(Clone)" || gameObject.name == "29(Clone)")
        {
            if (_singletonScript.RoundTrump == "Clubs")
            {
                cardSuit = "Trump";
            }
            else
            {
                cardSuit = "Clubs";
            }
        }
        else if (gameObject.name == "4(Clone)" || gameObject.name == "8(Clone)" || gameObject.name == "12(Clone)" || gameObject.name == "16(Clone)" || gameObject.name == "24(Clone)" || gameObject.name == "28(Clone)" || gameObject.name == "32(Clone)")
        {
            if (_singletonScript.RoundTrump == "Spades")
            {
                cardSuit = "Trump";
            }
            else
            {
                cardSuit = "Spades";
            }
        }
        else if (gameObject.name == "3(Clone)" || gameObject.name == "7(Clone)" || gameObject.name == "11(Clone)" || gameObject.name == "15(Clone)" || gameObject.name == "23(Clone)" || gameObject.name == "27(Clone)" || gameObject.name == "31(Clone)")
        {
            if (_singletonScript.RoundTrump == "Hearts")
            {
                cardSuit = "Trump";
            }
            else
            {
                cardSuit = "Hearts";
            }
        }
        else if (gameObject.name == "2(Clone)" || gameObject.name == "6(Clone)" || gameObject.name == "10(Clone)" || gameObject.name == "14(Clone)" || gameObject.name == "22(Clone)" || gameObject.name == "26(Clone)" || gameObject.name == "30(Clone)")
        {
            if (_singletonScript.RoundTrump == "Diamonds")
            {
                cardSuit = "Trump";
            }
            else
            {
                cardSuit = "Diamonds";
            }
        }
        else if (gameObject.name == "17(Clone)" || gameObject.name == "18(Clone)" || gameObject.name == "19(Clone)" || gameObject.name == "20(Clone)")
        {
            cardSuit = "Trump";
        }

        if (_singletonScript.Turn != "First" && _singletonScript.playerMass[0] == _singletonScript._yourName)
        {
            whichCard = 0;
        }
        else if (_singletonScript.Turn != "Second" && _singletonScript.playerMass[1] == _singletonScript._yourName)
        {
            whichCard = 0;
        }
        else if (_singletonScript.Turn != "Third" && _singletonScript.playerMass[2] == _singletonScript._yourName)
        {
            whichCard = 0;
        }
        else if (_singletonScript.Turn != "Fourth" && _singletonScript.playerMass[3] == _singletonScript._yourName)
        {
            whichCard = 0;
        }
        else if (spawnedCard == true)
        {
            whichCard = 0;
        }
        else if (deletedCard == true)
        {
            whichCard = 0;
        }
        else if (_singletonScript.playerMass[0] == _singletonScript._yourName && _singletonScript.Turn == "First" && deletedCard != true && spawnedCard != true)
        {
            whichCard = 1;
        }
        else if (_singletonScript.FirstCardSuit == cardSuit && cardSuit != "Trump")
        {
            whichCard = 1;
        }
        else
        {
            whichCard = 3;
        }

        if (whichCard == 0)
        {
            isPossible = false;
        }
        if (isPossible)
        {
            spriteColor.color = new Color(1f, 1f, 1f, 1f);
        }
        else if (!isPossible && spawnedCard == false)
        {
            spriteColor.color = new Color(0.3f, 0.3f, 0.3f, 1f);
        }
    }

    public int playerNumber;

    private void OnMouseDown()
    {
        if (isPossible)
        {
            if (_singletonScript.playerMass[0] == _singletonScript._yourName && _singletonScript.Turn == "First")
            {
                playerNumber = 1;
                Player.GetComponent<Player>().isCardTouched = true;
                Player.GetComponent<Player>().centerCardName = cardName;
                Player.GetComponent<Player>().stopper = 1;
                Player.GetComponent<Player>().num = 1;
                deletedCard = true;
                gameObject.transform.position = new Vector3(-100, 0, 0);
            }

            if (_singletonScript.playerMass[1] == _singletonScript._yourName && _singletonScript.Turn == "Second")
            {
                Player.GetComponent<Player>().isCardTouched = true;
                Player.GetComponent<Player>().centerCardName = cardName;
                Player.GetComponent<Player>().stopper = 1;
                Player.GetComponent<Player>().num = 2;
                deletedCard = true;
                gameObject.transform.position = new Vector3(-100, 0, 0);
            }

            if (_singletonScript.playerMass[2] == _singletonScript._yourName && _singletonScript.Turn == "Third")
            {
                Player.GetComponent<Player>().isCardTouched = true;
                Player.GetComponent<Player>().centerCardName = cardName;
                Player.GetComponent<Player>().stopper = 1;
                Player.GetComponent<Player>().num = 3;
                deletedCard = true;
                gameObject.transform.position = new Vector3(-100, 0, 0);
            }

            if (_singletonScript.playerMass[3] == _singletonScript._yourName && _singletonScript.Turn == "Fourth")
            {
                Player.GetComponent<Player>().isCardTouched = true;
                Player.GetComponent<Player>().centerCardName = cardName;
                Player.GetComponent<Player>().stopper = 1;
                Player.GetComponent<Player>().num = 4;
                deletedCard = true;
                gameObject.transform.position = new Vector3(-100, 0, 0);
            }
        }
    }
}