public static int[] GetRuleOrderArray(NeighborhoodOrder orderEnum)
{
switch (orderEnum)
{
case NeighborhoodOrder.Moore:
case NeighborhoodOrder.MooreRuleTree:
return(RuleTreeMoore);
case NeighborhoodOrder.MooreRuleTable:
return(RuleTableMoore);
case NeighborhoodOrder.VonNeumann:
case NeighborhoodOrder.VonNeumannRuleTree:
return(RuleTreeVonNeumann);
case NeighborhoodOrder.VonNeumannRuleTable:
return(RuleTableVonNeumann);
default:
throw new NotImplementedException();
}
}
public static IEnumerable <Point> GetAdjacentPointsToroid(this Point centerPoint, PieceGrid grid, NeighborhoodOrder neighborhoodOrder)
{
int[] order = GetRuleOrderArray(neighborhoodOrder);
Point next;
for (int i = 0; i < order.Length; i++)
{
next = centerPoint;
next.Add(AdjacentPointDeltas[order[i]]);
if (grid.IsOutOfBounds(next))
{
if (next.X < 0)
{
next.X = grid.Size - 1;
}
if (next.Y < 0)
{
next.Y = grid.Size - 1;
}
if (next.X > grid.Size - 1)
{
next.X = 0;
}
if (next.Y > grid.Size - 1)
{
next.Y = 0;
}
}
yield return(next);
}
}
public static IEnumerable <Point> GetAdjacentPointsNotOutOfBounds(this Point centerPoint, PieceGrid grid, NeighborhoodOrder neighborhoodOrder)
{
int[] order = GetRuleOrderArray(neighborhoodOrder);
Point next;
for (int i = 0; i < order.Length; i++)
{
next = centerPoint;
next.Add(AdjacentPointDeltas[order[i]]);
if (grid.IsOutOfBounds(next))
{
continue;
}
yield return(next);
}
}
