private void makeEatMove(CheckersPiece i_Piece)
{
m_IsPieceBecomeKing = isPieceGoingToBecomeKing(i_Piece);
r_GameBoard.RemoveOpponentPiece(r_CurremtRow, r_CurrentColumn, r_TargetRow, r_TargetColumn, r_Opponent);
r_GameBoard.UpdatePieceInBoard(r_Player, r_CurremtRow, r_CurrentColumn, r_TargetRow, r_TargetColumn);
updatePossibleEatMoves(i_Piece);
}
internal bool IsPreformedMove()
{
CheckersPiece pieceToMove = r_GameBoard.GetCell(r_CurremtRow, r_CurrentColumn).Piece;
bool isLegalMove = false;
m_IsNeedToEatAgain = false;
UpdateAllPlayerPieces(r_Player);
bool isValidPlayerPiece = isValidPiece(pieceToMove);
if (isValidPlayerPiece && IsPlayerMustEat(r_Player))
{
if (isLegalMove = isMoveInList(pieceToMove.PossibleEatMoves))
{
makeEatMove(pieceToMove);
m_IsNeedToEatAgain = pieceToMove.PossibleEatMoves.Any();
}
}
else if (isValidPlayerPiece && isSimpleMoveLeft() && !m_IsNeedToEatAgain)
{
if (isLegalMove = isMoveInList(pieceToMove.PossibleSimpleMoves))
{
makeSimpleMove(pieceToMove);
}
}
updateEndOfMove();
return(isLegalMove);
}
private bool isMoveInBounds(int i_MoveType, CheckersPiece i_Piece, int i_TargetRow, int i_TargetColumn)
{
int currentRow = i_Piece.Location[0];
int currentColumn = i_Piece.Location[1];
return(isValidRowMove(i_MoveType, currentRow, i_TargetRow, i_Piece.PieceType) && isValidColumnMove(i_MoveType, currentColumn, i_TargetColumn));
}
private void updatePossibleEatMoves(CheckersPiece i_Piece)
{
i_Piece.PossibleEatMoves.Clear();
int negativMove = -1 * k_EatMove;
int positiveMove = k_EatMove;
if (isValidMove(i_Piece, positiveMove, positiveMove, k_EatMove) && isEatOverOpponent(i_Piece, positiveMove, positiveMove))
{
addMove(i_Piece, positiveMove, positiveMove, k_EatMove);
}
if (isValidMove(i_Piece, negativMove, negativMove, k_EatMove) && isEatOverOpponent(i_Piece, negativMove, negativMove))
{
addMove(i_Piece, negativMove, negativMove, k_EatMove);
}
if (isValidMove(i_Piece, positiveMove, negativMove, k_EatMove) && isEatOverOpponent(i_Piece, positiveMove, negativMove))
{
addMove(i_Piece, positiveMove, negativMove, k_EatMove);
}
if (isValidMove(i_Piece, negativMove, positiveMove, k_EatMove) && isEatOverOpponent(i_Piece, negativMove, positiveMove))
{
addMove(i_Piece, negativMove, positiveMove, k_EatMove);
}
}
internal void UpdatePossibleSimpleMoves(CheckersPiece i_Piece)
{
i_Piece.PossibleSimpleMoves.Clear();
int moveToNegativSide = -1 * k_SimpleMove;
int moveToPositiveSide = k_SimpleMove;
if (isValidMove(i_Piece, moveToPositiveSide, moveToPositiveSide, k_SimpleMove))
{
addMove(i_Piece, moveToPositiveSide, moveToPositiveSide, k_SimpleMove);
}
if (isValidMove(i_Piece, moveToNegativSide, moveToNegativSide, k_SimpleMove))
{
addMove(i_Piece, moveToNegativSide, moveToNegativSide, k_SimpleMove);
}
if (isValidMove(i_Piece, moveToPositiveSide, moveToNegativSide, k_SimpleMove))
{
addMove(i_Piece, moveToPositiveSide, moveToNegativSide, k_SimpleMove);
}
if (isValidMove(i_Piece, moveToNegativSide, moveToPositiveSide, k_SimpleMove))
{
addMove(i_Piece, moveToNegativSide, moveToPositiveSide, k_SimpleMove);
}
}
private bool isValidMove(CheckersPiece i_Piece, int i_RowTargetMove, int i_ColumnTargetMove, int i_MoveType)
{
int targetRow = i_Piece.Location[0] + i_RowTargetMove;
int targetColumn = i_Piece.Location[1] + i_ColumnTargetMove;
bool isValidMove = isMoveInBounderies(targetRow, targetColumn) && isMoveInBounds(i_MoveType, i_Piece, targetRow, targetColumn);
return(isValidMove && isTargetEmpty(targetRow, targetColumn));
}
private bool isPieceGoingToBecomeKing(CheckersPiece i_Piece)
{
bool isBecomingKing;
if (r_Player.PawnType.Equals(CheckersPiece.ePieceType.X))
{
isBecomingKing = i_Piece.PieceType.Equals(CheckersPiece.ePieceType.X) && (r_TargetRow == 0);
}
else
{
isBecomingKing = i_Piece.PieceType.Equals(CheckersPiece.ePieceType.O) && (r_TargetRow == r_GameBoard.BoardSize - 1);
}
return(isBecomingKing);
}
private bool isEatOverOpponent(CheckersPiece i_Piece, int i_RowMove, int i_ColumnMove)
{
int rowToCheck = i_Piece.Location[0] + (i_RowMove / 2);
int columnToCheck = i_Piece.Location[1] + (i_ColumnMove / 2);
bool isCellEmpty = r_GameBoard.GetCell(rowToCheck, columnToCheck).Piece != null;
bool isEatOverOpponent = false;
if (isCellEmpty)
{
isEatOverOpponent = r_GameBoard.GetCell(rowToCheck, columnToCheck).Piece.PieceType == r_Opponent.PawnType;
isEatOverOpponent = isEatOverOpponent || r_GameBoard.GetCell(rowToCheck, columnToCheck).Piece.PieceType == r_Opponent.KingType;
}
return(isEatOverOpponent);
}
private void addMove(CheckersPiece i_Piece, int i_RowMove, int i_ColumnMove, int i_MoveType)
{
int[] newMove = new int[2];
newMove[0] = i_Piece.Location[0] + i_RowMove;
newMove[1] = i_Piece.Location[1] + i_ColumnMove;
if (i_MoveType == k_SimpleMove)
{
i_Piece.PossibleSimpleMoves.Add(newMove);
}
else
{
i_Piece.PossibleEatMoves.Add(newMove);
}
}
private void makeSimpleMove(CheckersPiece i_Piece)
{
r_GameBoard.UpdatePieceInBoard(r_Player, r_CurremtRow, r_CurrentColumn, r_TargetRow, r_TargetColumn);
}
private bool isValidPiece(CheckersPiece i_Piece)
{
bool isValidPiece = (i_Piece != null) ? (i_Piece.PieceType.Equals(r_Player.PawnType) || i_Piece.PieceType.Equals(r_Player.KingType)) : false;
return(isValidPiece);
}