void MainWindow::addRandomDir(CellList& list)
{
Cell* cell = list.first();
Cell* ucell = uCell(cell);
Cell* rcell = rCell(cell);
Cell* dcell = dCell(cell);
Cell* lcell = lCell(cell);
typedef QMap<Cell::Dirs, Cell*> CellMap;
CellMap freecells;
if(ucell && ucell->dirs() == Cell::Free)
freecells[Cell::U] = ucell;
if(rcell && rcell->dirs() == Cell::Free)
freecells[Cell::R] = rcell;
if(dcell && dcell->dirs() == Cell::Free)
freecells[Cell::D] = dcell;
if(lcell && lcell->dirs() == Cell::Free)
freecells[Cell::L] = lcell;
if(freecells.isEmpty())
return;
CellMap::ConstIterator it = freecells.constBegin();
for(int i = rand() % freecells.count(); i > 0; --i)
++it;
cell->setDirs(Cell::Dirs(cell->dirs() | it.key()));
it.value()->setDirs(contrdirs[it.key()]);
list.append(it.value());
}
SparseMap::SparseMap(const SparseMap &other)
{
document_ = other.document_;
const CellMap &cells = other.cells();
for (CellMap::ConstIterator it = cells.begin(); it != cells.end(); ++it) {
cells_[it.key()] = new Cell(*it.value());
}
}