/// <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>
/// Callback for the event fired when a wall is added to the game Board.
/// </summary>
/// <param name="cellCol">Column for one of the cells the wall borders</param>
/// <param name="cellRow">Row for one of the cells the wall borders</param>
/// <param name="wallPosition">Position the wall is relative to the given cell</param>
/// <param name="eventArgs">Event args (unused)</param>
private void Wall_AddedToBoardCallback(int cellCol, int cellRow, WallPositionFlags wallPosition, EventArgs eventArgs)
{
if (wallPosition == WallPositionFlags.Left || wallPosition == WallPositionFlags.Right)
{
UiBuilder.AddItemToGrid(this.DynamicVertWallPanel,
this.uiBuilder.CreateVerticalWallImage(cellCol, cellRow, wallPosition));
}
else if (wallPosition == WallPositionFlags.Up || wallPosition == WallPositionFlags.Down)
{
UiBuilder.AddItemToGrid(this.DynamicHorizWallPanel,
this.uiBuilder.CreateHorizontalWallImage(cellCol, cellRow, wallPosition));
}
}
/// <summary>
/// Create an Image object representing a horizontal wall at a position.
/// </summary>
/// <param name="cellCol">Column of the cell where the wall lives</param>
/// <param name="cellRow">Row of the cell where the wall lives</param>
/// <param name="wallPosition">Position in the cell where the wall lives</param>
/// <returns>Image object</returns>
public Image CreateHorizontalWallImage(int cellCol, int cellRow, WallPositionFlags wallPosition)
{
int xPosition = cellCol * this.CellWidthInPx;
int yPosition = cellRow * this.CellHeightInPx + (wallPosition == WallPositionFlags.Up ? 0 : this.CellHeightInPx) - 2;
Image horizWall = new Image
{
Source = new BitmapImage(new Uri(@"ms-appx:/Assets/wall_horiz.png")),
Width = this.CellWidthInPx,
Height = 4,
Visibility = Visibility.Visible,
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Top,
Margin = new Thickness(xPosition, yPosition, 0, 0)
};
return(horizWall);
}