private int EdgeCoverage(Color[,] board)
{
bool[,] continuousVisited = new bool[board.Height(), board.Width()];
bool[,] edgesVisited = new bool[board.Height(), board.Width()];
int covered = EdgeCoverage(0, 0, continuousVisited, edgesVisited, board);
return covered;
}
private static void PrintBoard(Color[,] board)
{
int estimatedLength = (board.GetLength(0) * board.GetLength(1)) * 2;
StringBuilder sb = new StringBuilder(estimatedLength);
for (int y = 0; y < board.Height(); y++)
{
for (int x = 0; x < board.Width(); x++)
{
sb.Append((char) ColorToLetter(board.GetAt(x, y)));
sb.Append(' ');
}
sb.AppendLine();
}
Console.WriteLine(sb);
}
//private static TreeNode[,] ToTreeNode(MapNode[,] lookup)
//{
// TreeNode[,] treeLookup = new TreeNode[lookup.Height(), lookup.Width()];
// for (int y = 0; y < lookup.Height(); y++)
// {
// for (int x = 0; x < lookup.Width(); x++)
// {
// TreeNode treeNode = new TreeNode(lookup.GetAt(x, y).Color);
// treeLookup.SetAt(x, y, treeNode);
// throw new NotImplementedException("Doesn't keep the same reference for touching colors");
// }
// }
// return treeLookup;
//}
private static MapNode[,] BuildLookupGrid(Color[,] board)
{
MapNode[,] lookup = new MapNode[board.Height(), board.Width()];
//build lookup
for (int y = 0; y < board.Height(); y++)
{
for (int x = 0; x < board.Width(); x++)
{
//Create MapNode
bool isLeftSame = board.CanGetLeft(x) && board.GetAt(x, y) == board.GetLeftOf(x, y);
bool isAboveSame = board.CanGetAbove(y) && board.GetAt(x, y) == board.GetAboveOf(x, y);
if (isLeftSame && isAboveSame) //check above & to the left
{
MapNode left = lookup.GetLeftOf(x, y);
MapNode above = lookup.GetAboveOf(x, y);
lookup.SetAt(x, y, left);
if (left != above)
{
left.Merge(above);
//update "above's" references to left
for (int updateY = y; updateY >= 0; updateY--)
{
for (int updateX = x; updateX >= 0; updateX--)
{
if (lookup.GetAt(updateX, updateY) == above)
lookup.SetAt(updateX, updateY, left);
}
}
}
}
else if (isLeftSame) // check to the left
{
lookup.SetAt(x, y, lookup.GetLeftOf(x, y));
}
else if (isAboveSame) // check above
{
lookup.SetAt(x, y, lookup.GetAboveOf(x, y));
}
else
{
lookup.SetAt(x, y, new MapNode(board.GetAt(x, y)));
}
}
}
return lookup;
}