private static Part1.Direction Reverse(Part1.Direction virusDirection)
{
if (virusDirection == Part1.Direction.Down)
{
return(Part1.Direction.Up);
}
else if (virusDirection == Part1.Direction.Up)
{
return(Part1.Direction.Down);
}
else if (virusDirection == Part1.Direction.Left)
{
return(Part1.Direction.Right);
}
else
{
return(Part1.Direction.Left);
}
}
static void Main()
{
string[] input = File.ReadAllLines("Day22\\Input\\input.txt");
char[,] inputMap = Part1.ReadInput(input);
char[,] worldMap = Part1.CreateWorldMap(inputMap, inputMap.GetLength(1) * 243);
int burst = 1;
int infected = 0;
int virusX = (worldMap.GetLength(1) - 1) / 2;
int virusY = (worldMap.GetLength(0) - 1) / 2;
Part1.Direction virusDirection = Part1.Direction.Up;
for (; burst <= 10000000; burst++)
{
if (worldMap[virusY, virusX] == '.') /* node is clean */
{
virusDirection = Part1.TurnLeft(virusDirection);
worldMap[virusY, virusX] = 'W'; /* weakened */
}
else if (worldMap[virusY, virusX] == 'W') /* weekened */
{
worldMap[virusY, virusX] = '#'; /* infected */
infected++;
}
else if (worldMap[virusY, virusX] == '#') /* infected */
{
virusDirection = Part1.TurnRight(virusDirection);
worldMap[virusY, virusX] = 'F'; /* flag */
}
else if (worldMap[virusY, virusX] == 'F') /* flagged */
{
virusDirection = Reverse(virusDirection);
worldMap[virusY, virusX] = '.'; /* clean */
}
else
{
Console.WriteLine("Unknown node state!");
}
//Part1.PrintMap(worldMap);
//Console.ReadLine();
switch (virusDirection)
{
case Part1.Direction.Up:
virusY--;
break;
case Part1.Direction.Down:
virusY++;
break;
case Part1.Direction.Left:
virusX--;
break;
case Part1.Direction.Right:
virusX++;
break;
default:
Console.WriteLine("Something bad happend...");
break;
}
}
Console.WriteLine(infected);
Console.ReadLine();
}
static void Main()
{
string[] input = File.ReadAllLines("Day19\\Input\\input.txt");
string[,] map = new string[input.Length, input[0].Length];
int currentPositionX = 0;
int currentPositionY = 0;
Part1.Direction currentDirection = Part1.Direction.Down;
for (int i = 0; i < input.Length; i++)
{
for (int j = 0; j < input[i].Length; j++)
{
string part = input[i].Substring(j, 1);
if (i == 0 && part == "|")
{
currentPositionX = j;
currentPositionY = i;
}
if (part == " ")
{
map[i, j] = "@";
}
else
{
map[i, j] = part;
}
}
}
string passedLetters = "";
int steps = 0;
while (true)
{
if (map[currentPositionY, currentPositionX] == "@") /* we are at the end */
{
break;
}
if (map[currentPositionY, currentPositionX] == "+") /* intersection */
{
if (currentDirection == Part1.Direction.Up || currentDirection == Part1.Direction.Down)
{
/* Must go left or right */
if (map[currentPositionY, currentPositionX - 1] == "-" ||
Regex.IsMatch(map[currentPositionY - 1, currentPositionX], @"^[A-Z]+$"))
{
currentDirection = Part1.Direction.Left;
}
else
{
currentDirection = Part1.Direction.Right;
}
}
else
{
/* Must go up or down */
if (map[currentPositionY - 1, currentPositionX] == "|" ||
Regex.IsMatch(map[currentPositionY - 1, currentPositionX], @"^[A-Z]+$"))
{
currentDirection = Part1.Direction.Up;
}
else
{
currentDirection = Part1.Direction.Down;
}
}
}
if (Regex.IsMatch(map[currentPositionY, currentPositionX], @"^[A-Z]+$"))
{
passedLetters += map[currentPositionY, currentPositionX];
}
switch (currentDirection)
{
case Part1.Direction.Up:
currentPositionY -= 1;
break;
case Part1.Direction.Down:
currentPositionY += 1;
break;
case Part1.Direction.Left:
currentPositionX -= 1;
break;
case Part1.Direction.Right:
currentPositionX += 1;
break;
default:
Console.WriteLine("Unkown direction!");
break;
}
steps++;
}
Console.WriteLine(passedLetters);
Console.WriteLine(steps);
Console.ReadLine();
}
