public void MakeMove(Move move)
{
if (IsValidMove(move))
{
_board.RemovePiece(move.Piece);
int newRow = move.Piece.Row;
int newCol = move.Piece.Col;
foreach (MoveDirection direction in move.Direction)
{
newRow += MoveUtil.GetRowMoveAmountByColor(move.Piece.Owner, direction);
newCol += MoveUtil.GetColMoveAmount(direction);
CheckerPiece pieceInPosition = _board.GetPiece(newRow, newCol);
if (pieceInPosition != null)
{
_board.RemovePiece(pieceInPosition);
newRow += MoveUtil.GetRowMoveAmountByColor(move.Piece.Owner, direction);
newCol += MoveUtil.GetColMoveAmount(direction);
}
}
var pieceAfterMove = new CheckerPiece(move.Piece);
pieceAfterMove.Row = newRow;
pieceAfterMove.Col = newCol;
_board.AddPiece(pieceAfterMove);
}
else
{
throw new ArgumentException("Invalid Move");
}
}
public bool TileInDirectionIsFree(int row, int col, MoveDirection direction)
{
int newRow = row + MoveUtil.GetRowMoveAmountByColor(Piece.Owner, direction);
int newCol = col + MoveUtil.GetColMoveAmount(direction);
return(CheckerBoard.TileIsInBounds(newRow, newCol) &&
Board.GetPiece(newRow, newCol) == null
);
}
public bool TileCanBeJumpedInDirection(int row, int col, MoveDirection direction)
{
int jumpRow = row + MoveUtil.GetRowMoveAmountByColor(Piece.Owner, direction);
int jumpCol = col + MoveUtil.GetColMoveAmount(direction);
return(CheckerBoard.TileIsInBounds(jumpRow, jumpCol) &&
TileInDirectionIsFree(jumpRow, jumpCol, direction) &&
Board.TileIsOpposingColor(jumpRow, jumpCol, OpposingColor)
);
}
private void GenerateJumpsForDirection(int row, int col, HashSet <Tile> capturedTiles, List <MoveDirection> directions, List <Move> moves, MoveDirection direction)
{
var forwardLeftTile = GetTileFromDirection(row, col, direction);
var tempCapturedTiles = new HashSet <Tile>(capturedTiles);
tempCapturedTiles.Add(forwardLeftTile);
var moveDirections = new List <MoveDirection>(directions);
moveDirections.Add(direction);
// Get the movement amount and then multiply by two since a jump moves
// twice as far.
int newRow = row + 2 * MoveUtil.GetRowMoveAmountByColor(Piece.Owner, direction);
int newCol = col + 2 * MoveUtil.GetColMoveAmount(direction);
if (PieceCanJump(newRow, newCol))
{
GenerateJumps(newRow, newCol, tempCapturedTiles, moveDirections, moves);
}
else
{
moves.Add(new Move(Piece, moveDirections));
}
}
private Tile GetTileFromDirection(int row, int col, MoveDirection direction)
{
return(Tile.FromRowCol(
row + MoveUtil.GetRowMoveAmountByColor(Piece.Owner, MoveDirection.ForwardLeft),
col + MoveUtil.GetColMoveAmount(MoveDirection.ForwardLeft)));
}