[Nero_3D]

foreach uses the values as indexes, so I think this could work

pawn Код:

new rand = Iter_Random(Frontier[0]));

if(Iter_Next(Frontier[0], rand) == Iter_Size(Frontier[0])) {
    rand = Iter_First(Frontier[0]);
}
RandomCell[0] = Iter_Next(Frontier[0], rand);
RandomCell[1] = Iter_Next(Frontier[1], rand);