public void Remove(Polyominoe poly)
{
foreach (Squarie square in poly.Squaries)
{
Occupied[square.Row, square.Col] = poly.Color;
}
}
public bool IsValid(Polyominoe poly)
{
bool isValid = true;
foreach (Squarie square in poly.Squaries)
{
if (Occupied[square.Row, square.Col] != Colors.NONE)
{
isValid = false;
break;
}
}
return(isValid);
}
private bool Solve(int colorIx)
{
if (colorIx == allPermutations.Count)
{
return(true);
}
foreach (Polyominoe permutation in allPermutations[colorIx])
{
optionStack.Push(permutation);
}
Polyominoe current = optionStack.Pop();
Colors currentColor = current.Color;
int layersChanged = 0;
while (!board.IsValid(current))
{
if (optionStack.Count == 0)
{
return(false);
}
current = optionStack.Pop();
if (current.Color != currentColor)
{
layersChanged++;
currentColor = current.Color;
board.Remove(lastAdded);
}
}
board.Add(current);
lastAdded = current;
return(Solve(colorIx - layersChanged + 1));
}