public void Evolve()
{
CellsNeighborhood cellsNeighborhood = new CellsNeighborhood();
CopyCurrentStateToPreviousStates();
foreach (var evolvingCell in PreviousState)
{
if (IsCellBoundary(evolvingCell))
{
cellsNeighborhood = GetCellsNeighborhoodForNotBoundaryCell(evolvingCell);
}
else
{
switch (BoundaryCondition)
{
case BoundaryConditionModel.Absorbing:
cellsNeighborhood = GetCellsNeighborhoodForFalseOutsideBc(evolvingCell);
break;
case BoundaryConditionModel.CounterAbsorbing:
cellsNeighborhood = GetCellsNeighborhoodForTrueOutsideBc(evolvingCell);
break;
case BoundaryConditionModel.Periodic:
cellsNeighborhood = GetCellsNeighborhoodForPeriodicalBc(evolvingCell);
break;
}
}
CurrentState[evolvingCell.Id].IsAlive = Rule.Table[cellsNeighborhood];
}
GenerationCount++;
}
private CellsNeighborhood GetCellsNeighborhoodForPeriodicalBc(CellModel cell)
{
CellsNeighborhood cellsNeighborhood = new CellsNeighborhood();
if (cell.Id == FirstCellId)
{
cellsNeighborhood.Left = PreviousState[LastCellId].IsAlive;
cellsNeighborhood.Center = PreviousState[cell.Id].IsAlive;
cellsNeighborhood.Right = PreviousState[cell.Id + 1].IsAlive;
}
if (cell.Id == LastCellId)
{
cellsNeighborhood.Left = PreviousState[cell.Id - 1].IsAlive;
cellsNeighborhood.Center = PreviousState[cell.Id].IsAlive;
cellsNeighborhood.Right = PreviousState[FirstCellId].IsAlive;
}
return(cellsNeighborhood);
}
private CellsNeighborhood GetCellsNeighborhoodForTrueOrFalseOutsideBc(CellModel cell, bool isOutsideAlive)
{
CellsNeighborhood cellsNeighborhood = new CellsNeighborhood();
if (cell.Id == FirstCellId)
{
cellsNeighborhood.Left = isOutsideAlive;
cellsNeighborhood.Center = PreviousState[cell.Id].IsAlive;
cellsNeighborhood.Right = PreviousState[cell.Id + 1].IsAlive;
}
if (cell.Id == LastCellId)
{
cellsNeighborhood.Left = PreviousState[cell.Id - 1].IsAlive;
cellsNeighborhood.Center = PreviousState[cell.Id].IsAlive;
cellsNeighborhood.Right = isOutsideAlive;
}
return(cellsNeighborhood);
}