static bool[,] LoadPaper(string filename)
{
var width = 0;
var height = 0;
var reader = FileIterator.CreateLineReader(filename);
for (var line = reader(); line != ""; line = reader())
{
var parts = line.Split(",");
var x = int.Parse(parts[0]);
var y = int.Parse(parts[1]);
if (width < x)
{
width = x;
}
if (height < y)
{
height = y;
}
}
var paper = new bool[width + 1, height + 1];
reader = FileIterator.CreateLineReader(filename);
for (var line = reader(); line != ""; line = reader())
{
var parts = line.Split(",");
var x = int.Parse(parts[0]);
var y = int.Parse(parts[1]);
paper[x, y] = true;
}
return(paper);
}
public Game(string filename)
{
var reader = FileIterator.CreateLineReader(filename);
players[0] = int.Parse(reader().Groups(@"position: (\d)")[0]) - 1;
players[1] = int.Parse(reader().Groups(@"position: (\d)")[0]) - 1;
}
static (string template, Dictionary <(char, char), char> rules) LoadData(string filename)
{
Dictionary <(char, char), char> rules = new();
var reader = FileIterator.CreateLineReader(filename);
var template = reader();
reader();
foreach (var mapping in FileIterator.Lines(reader))
{
var groups = mapping.Groups("(.)(.) -> (.)");
rules.Add((groups[0][0], groups[1][0]), groups[2][0]);
}
return(template, rules);
}
public Image(string filename)
{
var reader = FileIterator.CreateLineReader(filename);
var rulesLine = reader();
for (var i = 0; i < rulesLine.Length; i++)
{
rules[i] = rulesLine[i] == '#';
}
reader();
var y = 0;
foreach (var line in FileIterator.Lines(reader))
{
for (var x = 0; x < line.Length; x++)
{
if (line[x] == '#')
{
points.Add((x, y));
if (x < minX)
{
minX = x;
}
else if (x > maxX)
{
maxX = x;
}
if (y < minY)
{
minY = y;
}
else if (y > maxY)
{
maxY = y;
}
}
}
y++;
}
}
static List <int> LoadFolds(string filename)
{
var reader = FileIterator.CreateLineReader(filename);
while (reader() != "")
{
}
var folds = new List <int>();
for (var line = reader(); line != null; line = reader())
{
var parts = line.Groups("fold along (.)=(\\d+)");
var axis = int.Parse(parts[1]);
if (parts[0] == "y")
{
axis = -axis;
}
folds.Add(axis);
}
return(folds);
}