public CellState? Get(NeighborhoodState pattern)
{
CellState result;
if (Rules.TryGetValue(pattern, out result))
return result;
return null;
}
public static NeighborhoodState GetRandom()
{
byte[] bytes = Random.NextBytes(9);
NeighborhoodState next = new NeighborhoodState(
(byte)(bytes[0] % CellState.StateCount), (byte)(bytes[1] % CellState.StateCount), (byte)(bytes[2] % CellState.StateCount),
(byte)(bytes[3] % CellState.StateCount), (byte)(bytes[4] % CellState.StateCount), (byte)(bytes[5] % CellState.StateCount),
(byte)(bytes[6] % CellState.StateCount), (byte)(bytes[7] % CellState.StateCount), (byte)(bytes[8] % CellState.StateCount));
if (2573485501887179 == next.Value)
Console.WriteLine("HERE IS ONE");
return next;
}
static void TestNumberOfStates()
{
Func<int, Tuple<int, int>> test = new Func<int, Tuple<int, int>>(m =>
{
int[] powers = Enumerable.Range(0, 10).Select(p => (int)Math.Pow(m, p)).ToArray();
int states = powers[9];
ISet<ulong> distinct = new HashSet<ulong>();
for (int i = 0; i < states; i++)
{
int state = i;
var ns = new NeighborhoodState(
(byte)((state % powers[0 + 1]) / powers[0]),
(byte)((state % powers[1 + 1]) / powers[1]),
(byte)((state % powers[2 + 1]) / powers[2]),
(byte)((state % powers[3 + 1]) / powers[3]),
(byte)((state % powers[4 + 1]) / powers[4]),
(byte)((state % powers[5 + 1]) / powers[5]),
(byte)((state % powers[6 + 1]) / powers[6]),
(byte)((state % powers[7 + 1]) / powers[7]),
(byte)((state % powers[8 + 1]) / powers[8])
);
distinct.Add(ns.Value);
}
return new Tuple<int, int>(states, distinct.Count);
});
Enumerable.Range(1, 7)
.Select(test)
.ToList()
.ForEach(t => Console.Out.WriteLine("Expected: " + t.Item1 + "\tActual: " + t.Item2));
}
public void Remove(NeighborhoodState pattern)
{
if (Rules.ContainsKey(pattern))
Rules.Remove(pattern);
}