Matrix now just does the dumping but I need to make this more formal I think.

matrix.cpp

@@ -0,0 +1,25 @@
+#include "matrix.hpp"
+#include "constants.hpp"
+#include <fmt/core.h>
+
+using namespace fmt;
+
+void matrix_dump(const std::string &msg, Matrix &map, int show_x, int show_y) {
+  println("----------------- {}", msg);
+  for(size_t y = 0; y < map.size(); y++) {
+    for(size_t x = 0; x < map[y].size(); x++) {
+      int col = map[y][x];
+
+      if(int(x) == show_x && int(y) == show_y) {
+        print("{:x}<", col);
+      } else if(col == WALL_PATH_LIMIT) {
+        print("# ");
+      } else if(col > 15) {
+        print("* ");
+      } else {
+        print("{:x} ", col);
+      }
+    }
+    print("\n");
+  }
+}