public static void Step1()
{
var machine = new IntCodeMachine(Input.ToLongArray());
var grid = new InfiniteGrid <Color>(Color.Black);
var painted = new HashSet <Point>();
var facing = new Vector(0, -1);
machine.Drive(
inputHandler: () => Convert.ToInt32(grid.CurrentColor),
outputHandler: outputs =>
{
if (outputs.Count != 2)
{
throw new ApplicationException();
}
grid.CurrentColor = outputs[0] switch
{
0 => Color.Black,
1 => Color.White,
_ => throw new ApplicationException()
};
painted.Add(grid.CurrentPosition);
facing = outputs[1] switch
{
0 => facing.TurnLeft(),
1 => facing.TurnRight(),
_ => throw new ApplicationException()
};
grid.Move(facing.dX, facing.dY);
}
);
painted.Count.Should().Be(2088);
}
public static void Step2()
{
var machine = new IntCodeMachine(Input.ToLongArray());
var grid = new InfiniteGrid <Color>(Color.Black);
var facing = new Vector(0, -1);
grid.CurrentColor = Color.White;
machine.Drive(
inputHandler: () => Convert.ToInt32(grid.CurrentColor),
outputHandler: outputs =>
{
if (outputs.Count != 2)
{
throw new ApplicationException();
}
grid.CurrentColor = outputs[0] switch
{
0 => Color.Black,
1 => Color.White,
_ => throw new ApplicationException()
};
facing = outputs[1] switch
{
0 => facing.TurnLeft(),
1 => facing.TurnRight(),
_ => throw new ApplicationException()
};
grid.Move(facing.dX, facing.dY);
}
);
grid.Rows().ForEach(row =>
{
row.ForEach(color => Console.Write(color == Color.Black ? " " : "*"));
Console.WriteLine();
});
}