private Status CheckCurrentPoint(DroidPoint currentPoint, Droid droid)
{
var statusResult = droid.Move(currentPoint);
droid.ReturnHome();
return(statusResult);
}
public string CalculatePart1(string inputFile)
{
var program = GetProgram(inputFile);
var droid = new Droid(program);
var startPoint = new DroidPoint(0, 0, null);
var map = new Dictionary <DroidPoint, Status>();
map.Add(startPoint, Status.Empty);
var queue = new Queue <DroidPoint>();
EnqueuePoints(startPoint, Movement.East);
EnqueuePoints(startPoint, Movement.West);
EnqueuePoints(startPoint, Movement.North);
EnqueuePoints(startPoint, Movement.South);
while (queue.Any())
{
var currentPoint = queue.Dequeue();
if (map.ContainsKey(currentPoint))
{
continue;
}
var status = CheckCurrentPoint(currentPoint, droid);
map.Add(currentPoint, status);
if (status == Status.Empty)
{
EnqueuePoints(currentPoint, Movement.East);
EnqueuePoints(currentPoint, Movement.West);
EnqueuePoints(currentPoint, Movement.North);
EnqueuePoints(currentPoint, Movement.South);
}
else if (status == Status.Oxygen)
{
return((currentPoint.HomePath.GetPathToHome().Count() + 1).ToString());
}
}
return(0.ToString());
void EnqueuePoints(DroidPoint currentPoint, Movement movement)
{
var newPoint = currentPoint.GetPoint(movement);
if (!map.ContainsKey(newPoint))
{
queue.Enqueue(newPoint);
}
}
}