public static State4 RunNStates4(string initial, int cycles)
{
var state = new State4(initial);
for (int i = 0; i < cycles; i++)
{
state = new State4(state);
}
return(state);
}
public State4(State4 prevState)
{
var activeCells = new HashSet <IVec4>();
foreach (var cur in prevState.PotentialNextCells)
{
int neighbors = prevState.NeighborsAt(cur);
bool wasActive = prevState.ActiveCells.Contains(cur);
if ((wasActive && neighbors >= 2 && neighbors <= 3) ||
(!wasActive && neighbors == 3))
{
activeCells.Add(cur);
}
}
ActiveCells = activeCells;
}