/// <inheritdoc />
public string Part2()
{
int lowestCombinedSteps = int.MaxValue;
for (int i = 0; i < lines1.Count; i++)
{
for (int j = 0; j < lines2.Count; j++)
{
Vector2Int intersection = LineInt.Intersects(lines1[i], lines2[j]);
if (intersection != null)
{
int distance = Vector2Int.DistanceManhattan(Vector2Int.Zero, intersection);
if (distance > 0)
{
int steps = Steps(i, j);
steps += Vector2Int.DistanceManhattan(intersection, lines1[i].PointA);
steps += Vector2Int.DistanceManhattan(intersection, lines2[j].PointA);
if (steps != 0 && steps < lowestCombinedSteps)
{
lowestCombinedSteps = steps;
Console.WriteLine($"new lowest: {lowestCombinedSteps}");
}
}
}
}
}
return($"{lowestCombinedSteps}");
}
/// <inheritdoc />
public string Part1()
{
int lowestDistance = int.MaxValue;
foreach (LineInt line1 in lines1)
{
foreach (LineInt line2 in lines2)
{
Vector2Int intersection = LineInt.Intersects(line1, line2);
if (intersection != null)
{
int distance = Vector2Int.DistanceManhattan(Vector2Int.Zero, intersection);
if (distance > 0 && distance < lowestDistance)
{
lowestDistance = distance;
}
}
}
}
return($"{lowestDistance}");
}