public static int Part1()
{
bool draw = true;
int infectedCount = 0;
Tools.Vector2 currentNode = new Tools.Vector2(0, 0);
Direction currentDir = Direction.up;
Dictionary <Tools.Vector2, bool> map = new Dictionary <Tools.Vector2, bool>();
ReadInput(Properties.Resources.input_D22, ref map, ref currentNode);
if (draw)
{
WriteToConsole(ref map, currentNode);
}
for (int i = 0; i < 10000; ++i)
{
Move(ref currentDir, ref currentNode, ref map, ref infectedCount);
if (draw)
{
WriteToConsole(ref map, currentNode);
System.Threading.Thread.Sleep(500);
}
}
return(infectedCount);
}
private static void Move(ref Direction d, ref Tools.Vector2 pos, ref Dictionary <Tools.Vector2, bool> map, ref int infected)
{
// Turn
bool success = map.ContainsKey(pos);
if (success)
{
if (map[pos])
{
d = TurnRight(d);
}
else
{
d = TurnLeft(d);
}
}
else
{
map.Add(new Tools.Vector2(pos.x, pos.y), false);
d = TurnLeft(d);
}
// Toggle node
map[pos] = !map[pos];
if (map[pos])
{
infected++;
}
// Move
switch (d)
{
case Direction.up:
pos.y--;
break;
case Direction.right:
pos.x++;
break;
case Direction.down:
pos.y++;
break;
case Direction.left:
pos.x--;
break;
default:
throw new Exception("erm wut?");
}
}
public static int Part2()
{
int infectedCount = 0;
Tools.Vector2 currentNode = new Tools.Vector2(0, 0);
Direction currentDir = Direction.up;
Dictionary <Tools.Vector2, Infection> map = new Dictionary <Tools.Vector2, Infection>();
ReadInput2(Properties.Resources.input_D22, ref map, ref currentNode);
for (int i = 0; i < 10000000; ++i)
{
Move2(ref currentDir, ref currentNode, ref map, ref infectedCount);
}
return(infectedCount);
}
private static void ReadInput2(string input, ref Dictionary <Tools.Vector2, Infection> map, ref Tools.Vector2 middle)
{
string[] inputs = Properties.Resources.input_D22.Split(new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < inputs.Length; ++i)
{
for (int j = 0; j < inputs[i].Length; ++j)
{
if (inputs[i][j] == '.')
{
map.Add(new Tools.Vector2(j, i), Infection.clean);
}
else if (inputs[i][j] == '#')
{
map.Add(new Tools.Vector2(j, i), Infection.infected);
}
}
}
middle = new Tools.Vector2(inputs[0].Length / 2, inputs.Length / 2);
}
private static void WriteToConsole(ref Dictionary <Tools.Vector2, bool> map, Tools.Vector2 pos)
{
Console.Clear();
// find bounds
int lowestX = int.MaxValue;
int highestX = int.MinValue;
int lowestY = int.MaxValue;
int highestY = int.MinValue;
foreach (KeyValuePair <Tools.Vector2, bool> key in map)
{
if (key.Key.x < lowestX)
{
lowestX = key.Key.x;
}
if (key.Key.x > highestX)
{
highestX = key.Key.x;
}
if (key.Key.y < lowestY)
{
lowestY = key.Key.y;
}
if (key.Key.y > highestY)
{
highestY = key.Key.y;
}
}
for (int y = lowestY; y <= highestY; ++y)
{
for (int x = lowestX; x <= highestX; ++x)
{
if (map.ContainsKey(new Tools.Vector2(x, y)))
{
if (map[new Tools.Vector2(x, y)])
{
if (pos.x == x && pos.y == y)
{
Console.ForegroundColor = ConsoleColor.Red;
}
else
{
Console.ForegroundColor = ConsoleColor.DarkGreen;
}
Console.Write("#");
}
else
{
if (pos.x == x && pos.y == y)
{
Console.ForegroundColor = ConsoleColor.Red;
}
else
{
Console.ForegroundColor = ConsoleColor.White;
}
Console.Write(".");
}
}
else
{
Console.Write(".");
}
}
Console.WriteLine();
}
}
private static void Move2(ref Direction d, ref Tools.Vector2 pos, ref Dictionary <Tools.Vector2, Infection> map, ref int infected)
{
// Turn
bool success = map.ContainsKey(pos);
if (success)
{
switch (map[pos])
{
case Infection.clean:
d = TurnLeft(d);
break;
case Infection.weak:
// do not turn
break;
case Infection.infected:
d = TurnRight(d);
break;
case Infection.flagged:
d = TurnAround(d);
break;
default:
throw new Exception("SHUT DOWN EVERYTHING");
}
}
else
{
map.Add(new Tools.Vector2(pos.x, pos.y), 0);
d = TurnLeft(d);
}
// Increase Node
map[pos] = IncInfection(map[pos]);
if (map[pos] == Infection.infected)
{
infected++;
}
// Move
switch (d)
{
case Direction.up:
pos.y--;
break;
case Direction.right:
pos.x++;
break;
case Direction.down:
pos.y++;
break;
case Direction.left:
pos.x--;
break;
default:
throw new Exception("erm wut?");
}
}
