public Puzzle(string filename)
{
Rows = new Group[9];
Columns = new Group[9];
Grids = new Group[9];
Solutions = new List<int[,]>();
int rowIndex = 0;
using (StreamReader sr = new StreamReader(filename))
{
while (!sr.EndOfStream)
{
string line = sr.ReadLine();
Group row = new Group();
for (int i = 0; i < 9; i++)
{
Tile tile = new Tile();
char c = line[i];
if (c == 'B')
{
tile.Given = false;
}
else
{
tile.Given = true;
tile.Value = c - 48; // Convert to "face value" of char; 0 is ascii 48.
}
row.Tiles[i] = tile;
tile.RowIndex = rowIndex;
}
Rows[rowIndex] = row;
rowIndex++;
}
}
SetupColumns();
SetupGrids();
}
public Puzzle(int[,] input)
{
Rows = new Group[9];
Columns = new Group[9];
Grids = new Group[9];
Solutions = new List<int[,]>();
for (int row = 0; row < 9; row++)
{
Rows[row] = new Group();
for (int col = 0; col < 9; col++)
{
int value = input[row, col];
Tile tile = new Tile();
tile.RowIndex = row;
if (value > 0)
{
// This is a given tile.
tile.Given = true;
tile.Value = value;
}
else
{
// This is an unknown value to solve for.
tile.Given = false;
}
Rows[row].Tiles[col] = tile;
}
}
SetupColumns();
SetupGrids();
}
public Group()
{
Tiles = new Tile[9];
Solutions = new List<int[]>();
}