private static void SLDouble(Player P)
    {
        ShippingLines SL = (ShippingLines)Game.fields.get(P.Position);
        int Owner = SL.Owner;
        if (Owner != Game.players.indexOf(P))
        {
            if ((Game.players.get(Owner)).InPrison == false)
            {
                
                int cnt = SL.CountShippingLines();
                Player OPlayer = Game.players.get(Owner);
                if (cnt == 1)
                {
                    int Pay;
                    Pay = -500;
                    P.ChangeMoney(Pay);
                    OPlayer.ChangeMoney(-Pay);
                }
                else if (cnt == 2)
                {
                    int Pay;
                    Pay = -1000;    
                    P.ChangeMoney(Pay);
                    OPlayer.ChangeMoney(-Pay);
                }
                else if (cnt == 3)
                {
                    int Pay;
                    Pay = -2000;    
                    P.ChangeMoney(Pay);
                    OPlayer.ChangeMoney(-Pay);
                }
                else if (cnt == 4)
                {
                    int Pay;
                    Pay = -4000;
                    P.ChangeMoney(Pay);
                    OPlayer.ChangeMoney(-Pay);
                }
                
            }
        }
    }