private static int SimulateFrom(SeatLayout startState)
{
Console.WriteLine($"start: \n\n{startState}\n\n");
while (startState.GetNextState(out startState))
{
Console.WriteLine($"{startState}\n\n");
}
Console.WriteLine($"end: \n\n{startState}");
return(startState.CountAllOccupied());
}
/// <summary>
/// Get next state of the seat layout based on the rules.
/// </summary>
/// <param name="nextLayout">out param for next state</param>
/// <returns>if next state is different from this</returns>
public bool GetNextState(out SeatLayout nextLayout)
{
bool isChanged = false;
nextLayout = new SeatLayout(this);
for (var i = 0; i < _grid.Count; i++)
{
var newRow = new List <char>();
for (var j = 0; j < _grid[0].Count; j++)
{
newRow.Add(NewSeat(i, j, ref isChanged));
}
nextLayout._grid.Add(newRow);
}
return(isChanged);
}
public static int Part2(IEnumerable <string> lines)
{
var state = new SeatLayout(lines, 5, SeatLayout.NeighborMode.FirstToSee);
return(SimulateFrom(state));
}
public static int Part1(IEnumerable <string> lines)
{
var state = new SeatLayout(lines);
return(SimulateFrom(state));
}
private SeatLayout(SeatLayout otherLayout)
{
_grid = new List <List <char> >(); // !!! :/
_occupiedToEmptyMin = otherLayout._occupiedToEmptyMin;
_neighborMode = otherLayout._neighborMode;
}