/// <summary>
/// Checks what color the top-left corner of tile x,y should be,
/// and draws it at point px, py on the provided graphics object.
/// </summary>
private void DrawTopLeftPointFor(DungeonTiles tiles, int x, int y, int px, int py, Graphics g)
{
bool useWallColor = tiles.WallExists(x, y, Tile.MoveType.Open_NORTH) ||
tiles.WallExists(x, y, Tile.MoveType.Open_WEST) ||
tiles.WallExists(x - 1, y, Tile.MoveType.Open_NORTH) ||
tiles.WallExists(x, y - 1, Tile.MoveType.Open_WEST);
Brush cornerBrush = useWallColor ? this.WallBorder_Brush : this.OpenBorder_Brush;
g.FillRectangle(cornerBrush, px, py, 1, 1);
}
