/// <summary>
/// Add a wall between two cells to the Board.
/// </summary>
/// <param name="cell1Col">Column of the first cell adjacent to the wall</param>
/// <param name="cell1Row">Row of the first cell adjacent to the wall</param>
/// <param name="cell2Col">Column of the second cell adjacent to the wall</param>
/// <param name="cell2Row">Row of the second cell adjacent to the wall</param>
public void AddWallToBoard(int cell1Col, int cell1Row, int cell2Col, int cell2Row)
{
this.BoardWalls.AddWall(cell1Col, cell1Row, cell2Col, cell2Row);
if (this.WallAddedToBoardEvent != null)
{
this.WallAddedToBoardEvent(cell1Col, cell1Row, BoardWalls.CalculatePositionOfWall(cell1Col, cell1Row, cell2Col, cell2Row), null);
}
}
/// <summary>
/// Check if an object moving from one cell to another would run into a wall between those cells.
/// </summary>
/// <param name="fromCellCol">Column of the cell the object is moving from</param>
/// <param name="fromCellRow">Row of the cell the object is moving from</param>
/// <param name="toCellCol">Column of the cell the object is moving to</param>
/// <param name="toCellRow">Row of the cell the object is moving to</param>
/// <returns>True if there is a wall between the 'from cell' and 'to cell'</returns>
public bool WouldHitWall(int fromCellCol, int fromCellRow, int toCellCol, int toCellRow)
{
VerifyCellPositionParams(fromCellCol, fromCellRow);
VerifyCellPositionParams(toCellCol, toCellRow);
WallPositionFlags expectedDirection = BoardWalls.CalculatePositionOfWall(fromCellCol, fromCellRow, toCellCol, toCellRow);
WallPositionFlags wallsForCell = boardWallMap[fromCellCol, fromCellRow];
return(wallsForCell.HasFlag(expectedDirection));
}
/// <summary>
/// Add a wall to the Board between two cells
/// </summary>
/// <param name="cell1Col">Column of the first cell the wall is between</param>
/// <param name="cell1Row">Row of the first cell the wall is between</param>
/// <param name="cell2Col">Column of the second cell the wall is between</param>
/// <param name="cell2Row">Row of the second cell the wall is between</param>
public void AddWall(int cell1Col, int cell1Row, int cell2Col, int cell2Row)
{
VerifyCellPositionParams(cell1Col, cell1Row);
VerifyCellPositionParams(cell2Col, cell2Row);
if (cell1Col == cell2Col && cell1Row == cell2Row)
{
throw new ArgumentException("Cells cannot be the same for wall placement!");
}
// Save the wall info on both cells, but opposite directions
boardWallMap[cell1Col, cell1Row] &= BoardWalls.CalculatePositionOfWall(cell1Col, cell1Row, cell2Col, cell2Row);
boardWallMap[cell2Col, cell2Row] &= BoardWalls.CalculatePositionOfWall(cell2Col, cell2Row, cell1Col, cell1Row);
}
