public void SolvePart1()
{
Coord coord = new Coord(0, 0);
string[] directions = InputParser.ReadToStringArr(Day);
char orientation = 'E';
foreach (string direction in directions)
{
(char dir, int val) = DirUtils.ParseDir(direction);
if (DirUtils.CardinalKeys.Contains(dir))
{
CardinalDir step = DirUtils.dirLkup[dir];
coord.X += (val * step.dx);
coord.Y += (val * step.dy);
}
else if (DirUtils.Turns.Contains(dir))
{
for (int i = 0; i < (val / 90); i++)
{
orientation = DirUtils.turnLkp[dir][orientation];
}
}
else if (dir == 'F')
{
CardinalDir step = DirUtils.dirLkup[orientation];
coord.X += (val * step.dx);
coord.Y += (val * step.dy);
}
}
int solution = Math.Abs(coord.X) + Math.Abs(coord.Y);
Console.WriteLine($"Manhattan Distance: {solution}");
}
public void SolveTest()
{
Coord shipLoc = new Coord(0, 0);
Coord waypoint = new Coord(1, 10);
string[] directions = InputParser.ReadToStringArr(Day, "Test");
char orientation = 'E';
foreach (string direction in directions)
{
(char dir, int val) = DirUtils.ParseDir(direction);
if (DirUtils.CardinalKeys.Contains(dir))
{
CardinalDir step = DirUtils.dirLkup[dir];
waypoint.X += (val * step.dx);
waypoint.Y += (val * step.dy);
}
else if (DirUtils.Turns.Contains(dir))
{
for (int i = 0; i < (val / 90); i++)
{
if (dir == 'R')
{
int x = waypoint.X;
int y = waypoint.Y;
waypoint.X = y;
waypoint.Y = -x;
}
if (dir == 'L')
{
int x = waypoint.X;
int y = waypoint.Y;
waypoint.X = -y;
waypoint.Y = x;
}
}
}
else if (dir == 'F')
{
CardinalDir step = DirUtils.dirLkup[orientation];
for (int i = 0; i < val; i++)
{
shipLoc.X += waypoint.X;
shipLoc.Y += waypoint.Y;
}
}
}
int solution = Math.Abs(shipLoc.X) + Math.Abs(shipLoc.Y);
Console.WriteLine($"Manhattan Distance: {solution}");
}
