private static (CharMap, int) BuildMapAndFindOxygen(string intcode)
{
var map = new CharMap();
var movements = new MoveGenerator();
map[movements.Current.Position] = MapSpace;
var stepsToOxygen = 0;
var debug = false;
var engine2 = new Engine()
.WithMemory(intcode)
.OnInput(engine =>
{
var movement = movements.NextProposal(map);
if (movement == MoveNone)
{
engine.Halt = true;
}
if (debug)
{
Console.Clear();
Console.WriteLine($"Moves: {movements}");
foreach (var line in map.Render(MapOverlay))
{
Console.WriteLine(line);
}
Console.ReadKey();
}
engine.Input.Add(movement);
})
.OnOutput(engine =>
{
var status = engine.Output.Take();
switch (status)
{
case StatusHitTheWall:
map[movements.ProposedPosition] = MapWall;
break;
case StatusMoved:
movements.ApproveMove();
map[movements.Current.Position] = MapSpace;
break;
case StatusFoundOxygen:
movements.ApproveMove();
map[movements.Current.Position] = MapOxygen;
stepsToOxygen = movements.Moves;
break;
}
})
.Execute();
return(map, stepsToOxygen);
// Draw Droid on top of map
char MapOverlay(Point p, char val)
{
var droid = movements.Current?.Position;
return(p == droid ? MapDroid : val);
}
}