Algos directory is setup.

src/pathing.hpp

@@ -1,40 +0,0 @@
-#pragma once
-#include "point.hpp"
-#include "algos/matrix.hpp"
-#include <functional>
-
-using matrix::Matrix;
-
-constexpr const int PATHING_TOWARD=1;
-constexpr const int PATHING_AWAY=-1;
-
-enum class PathingResult {
-  FAIL=0,
-  FOUND=1,
-  CONTINUE=2
-};
-
-class Pathing {
-public:
-  size_t $width;
-  size_t $height;
-  Matrix $paths;
-  Matrix $input;
-
-  Pathing(size_t width, size_t height) :
-    $width(width),
-    $height(height),
-    $paths(height, matrix::Row(width, 1)),
-    $input(height, matrix::Row(width, 1))
-  {}
-
-  void compute_paths(Matrix &walls);
-  void set_target(const Point &at, int value=0);
-  void clear_target(const Point &at);
-  Matrix &paths() { return $paths; }
-  Matrix &input() { return $input; }
-  int distance(Point to) { return $paths[to.y][to.x];}
-  PathingResult find_path(Point &out, int direction, bool diag);
-
-  bool INVARIANT();
-};