public static int GetCount(this Grid board, CellPredicate predicate)
{
return(Engine.Fold(0, (acc, cell, brd) => {
if (predicate(cell, brd))
{
return acc + 1;
}
else
{
return acc;
}
}, board));
}
public void ProcessCellFill(int x, int y, int z, CellCallback action, CellPredicate predicate)
{
if (!IsValidCell(x, y, z))
{
return;
}
bool[,,] closed = new bool[CellsPerXAxis, CellsPerYAxis, CellsPerZAxis];
var baseCell = GetCastInfo(x, y, z);
var open = new Queue <CellCastInfo>();
open.Enqueue(baseCell);
closed[x, y, z] = true;
CellCastInfo cell = baseCell;
if (!predicate(cell.X, cell.Y, cell.Z, cell.Cell))
{
return;
}
action(cell.X, cell.Y, cell.Z, cell.Cell);
while (open.Count > 0)
{
CellCastInfo next = open.Dequeue();
int west, east;
bool match;
// Find west
x = next.X;
y = next.Y;
z = next.Z;
match = true;
while (match)
{
++x;
if (IsValidCell(x, y, z))
{
cell = GetCastInfo(x, y, z);
match = predicate(cell.X, cell.Y, cell.Z, cell.Cell);
}
else
{
match = false;
}
}
west = x;
//
// Find east
x = next.X;
y = next.Y;
z = next.Z;
match = true;
while (match)
{
--x;
if (IsValidCell(x, y, z))
{
cell = GetCastInfo(x, y, z);
match = predicate(cell.X, cell.Y, cell.Z, cell.Cell);
}
else
{
match = false;
}
}
east = x;
//
for (x = east + 1; x < west; ++x)
{
if (closed[x, y, z])
{
continue;
}
cell = GetCastInfo(x, y, z);
match = predicate(cell.X, cell.Y, cell.Z, cell.Cell);
closed[x, y, z] = true;
if (IsValidCell(x, y - 1, z))
{
cell = GetCastInfo(x, y - 1, z);
if (predicate(cell.X, cell.Y, cell.Z, cell.Cell))
{
open.Enqueue(cell);
}
}
if (IsValidCell(x, y + 1, z))
{
cell = GetCastInfo(x, y + 1, z);
if (predicate(cell.X, cell.Y, cell.Z, cell.Cell))
{
open.Enqueue(cell);
}
}
}
}
}
