// when a player crosses the finish line
 private void OnTriggerEnter(Collider col)
 {
     // if it is player 1
     if (col.GetComponent <Collider>().CompareTag("player1"))
     {
         if (finishObject.CompareTag("finish"))
         {
             // get player1
             Player1 player1 = col.transform.root.GetComponentInChildren <Player1>();
             // if neither player has already won, declare player 1 the winner
             if (Player1.CheckStatus() == false && Player2.CheckStatus() == false)
             {
                 player1.Winner();
             }
             // player 1 lost
             else
             {
                 player1.Loser();
             }
         }
     }
     // if it is player 2
     if (col.GetComponent <Collider>().CompareTag("player2"))
     {
         if (finishObject.CompareTag("finish"))
         {
             // get player 2
             Player2 player2 = col.transform.root.GetComponentInChildren <Player2>();
             // if neither player has already won, declare player 2 the winner
             if (Player1.CheckStatus() == false && Player2.CheckStatus() == false)
             {
                 player2.Winner();
             }
             // player 2 lost
             else
             {
                 player2.Loser();
             }
         }
     }
 }