Belot.CardComparer.Compare C# (CSharp) Метод

        public int Compare( object x, object y )
        {
            if( (x is Card) && (y is Card) )
            {
                Card cardX = (Card)x;
                Card cardY = (Card)y;

                if( _isComparingCombinations )
                {
                    return CompareCombinations( cardX, cardY );
                }
                else if( (int)(cardX.CardColor) < (int)(cardY.CardColor) )
                    return 1;
                else if( (int)(cardX.CardColor) > (int)(cardY.CardColor) )
                    return -1;
                else
                {
                    switch( this._announcementType )
                    {
                        case AnnouncementTypeEnum.AllTrumps :
                            return CompareTrumps( cardX, cardY );
                        case AnnouncementTypeEnum.NoTrumps :
                            return CompareNoTrumps( cardX, cardY );
                        case AnnouncementTypeEnum.Spades :
                            if( cardX.CardColor == CardColor.Spades )
                                return CompareTrumps( cardX, cardY );
                            else
                                return CompareNoTrumps( cardX, cardY );
                        case AnnouncementTypeEnum.Hearts :
                            if( cardX.CardColor == CardColor.Hearts )
                                return CompareTrumps( cardX, cardY );
                            else
                                return CompareNoTrumps( cardX, cardY );
                        case AnnouncementTypeEnum.Diamonds :
                            if( cardX.CardColor == CardColor.Diamonds )
                                return CompareTrumps( cardX, cardY );
                            else
                                return CompareNoTrumps( cardX, cardY );
                        case AnnouncementTypeEnum.Clubs :
                            if( cardX.CardColor == CardColor.Clubs )
                                return CompareTrumps( cardX, cardY );
                            else
                                return CompareNoTrumps( cardX, cardY );
                        case AnnouncementTypeEnum.Pass :
                            return CompareTrumps( cardX, cardY );
                    }
                }
            }
            else
            {
                throw new ArgumentException("One of the objects is not a Card");
            }

            return 0;
        }

        /// <summary>
        /// Compares current combination to another one
        /// </summary>
        /// <param name="combination">combination to compare to</param>
        /// <returns>1 if current combination is bigger, -1 if second combination is bigger, 0 if both combination are equal</returns>
        public override int CompareTo(object combination)
        {
            if (!(combination is SequentialCombination))
            {
                throw new InvalidOperationException("Cannot compare SequentialCombination to an object of different type");
            }

            int result = 0;

            SequentialCombination comb = combination as SequentialCombination;

            if (this.Points > comb.Points)
            {
                result = 1;
            }
            else if (this.Points < comb.Points)
            {
                result = -1;
            }
            else
            {
                // both combinations are sequential. See biggest card
                CardComparer comparer = new CardComparer( );
                this.Cards.Sort(comparer);
                comb.Cards.Sort(comparer);

                result = comparer.Compare(this.Cards[0], comb.Cards[0]);
            }
            return(result);
        }