diff --git a/map.cpp b/map.cpp
index 5a34da2..656ae8e 100644
--- a/map.cpp
+++ b/map.cpp
@@ -26,6 +26,15 @@ Map::Map(size_t width, size_t height) :
   $paths(height, width, 1000)
 {}
 
+Map::Map(Matrix &walls, Pathing &paths, int limit) :
+  $limit(limit),
+  $walls(walls),
+  $paths(paths)
+{
+  $width = walls[0].size();
+  $height = walls.size();
+}
+
 void Map::make_paths() {
   $paths.compute_paths($walls);
 }
@@ -34,7 +43,6 @@ bool Map::inmap(size_t x, size_t y) {
   return x < $width && y < $height;
 }
 
-
 void Map::set_target(const Point &at, int value) {
   $paths.set_target(at, value);
 }
diff --git a/map.hpp b/map.hpp
index 9ede0b4..34a0ed0 100644
--- a/map.hpp
+++ b/map.hpp
@@ -42,6 +42,8 @@ public:
 
   Map(size_t width, size_t height);
 
+  Map(Matrix &walls, Pathing &paths, int limit);
+
   // disable copying
   Map(Map &map) = delete;
 
diff --git a/meson.build b/meson.build
index 194c589..a567e33 100644
--- a/meson.build
+++ b/meson.build
@@ -46,6 +46,7 @@ runtests = executable('runtests', [
   'tests/panel.cpp',
   'tests/sound.cpp',
   'tests/pathing.cpp',
+  'tests/lighting.cpp',
   'tests/worldbuilder.cpp',
   ],
   dependencies: dependencies)
diff --git a/save.cpp b/save.cpp
index e43c54f..386adb1 100644
--- a/save.cpp
+++ b/save.cpp
@@ -17,12 +17,11 @@ inline void extract(DinkyECS::World &world, std::map<DinkyECS::Entity, CompT> &i
 }
 
 void save::to_file(fs::path path, DinkyECS::World &world, Map &map) {
-  /*
   SaveData save_data;
   tser::BinaryArchive archive;
 
   save_data.facts.player = world.get_the<Player>();
-  save_data.map = MapData{map.$rooms, map.$input_map, map.$walls, map.$limit};
+  save_data.map = MapData{map.$rooms, map.$walls, map.$limit};
 
   extract<Position>(world, save_data.position);
   extract<Combat>(world, save_data.combat);
@@ -36,7 +35,6 @@ void save::to_file(fs::path path, DinkyECS::World &world, Map &map) {
   std::ofstream out(path, std::ios::binary);
   out << archive_view;
   out.flush();
-  */
 }
 
 template<typename CompT>
@@ -73,10 +71,12 @@ void save::from_file(fs::path path, DinkyECS::World &world_out, Map &map_out) {
   inject<Tile>(world_out, save_data.tile);
   inject<Inventory>(world_out, save_data.inventory);
 
-  /*
-  map_out = Map(save_data.map.input_map,
-      save_data.map.walls, save_data.map.limit);
-      */
+  size_t width = save_data.map.walls[0].size();
+  size_t height = save_data.map.walls.size();
+  int limit = save_data.map.limit;
+
+  Pathing paths(width, height, limit);
+  map_out = Map(save_data.map.walls, paths, limit);
 
   save::load_configs(world_out);
 }
diff --git a/save.hpp b/save.hpp
index e73f3d6..1309833 100644
--- a/save.hpp
+++ b/save.hpp
@@ -12,11 +12,10 @@ namespace save {
 
   struct MapData {
     std::vector<Room> rooms;
-    Matrix input_map;
     Matrix walls;
     int limit;
 
-    DEFINE_SERIALIZABLE(MapData, rooms, input_map, walls);
+    DEFINE_SERIALIZABLE(MapData, rooms, walls);
   };
 
   struct Facts {
diff --git a/tests/lighting.cpp b/tests/lighting.cpp
index 9f9b12d..d64e474 100644
--- a/tests/lighting.cpp
+++ b/tests/lighting.cpp
@@ -3,6 +3,7 @@
 #include <nlohmann/json.hpp>
 #include <fstream>
 #include "map.hpp"
+#include "worldbuilder.hpp"
 #include "lights.hpp"
 #include "point.hpp"
 
@@ -10,7 +11,8 @@ using namespace lighting;
 
 TEST_CASE("lighting a map works", "[lighting]") {
   Map map(20,20);
-  map.generate();
+  WorldBuilder builder(map);
+  builder.generate();
 
   Point light1 = map.place_entity(0);
   Point light2 = map.place_entity(1);
diff --git a/tests/map.cpp b/tests/map.cpp
index cee1e23..bb959d4 100644
--- a/tests/map.cpp
+++ b/tests/map.cpp
@@ -3,6 +3,7 @@
 #include <nlohmann/json.hpp>
 #include <fstream>
 #include "map.hpp"
+#include "worldbuilder.hpp"
 
 using namespace fmt;
 using namespace nlohmann;
@@ -13,6 +14,22 @@ json load_test_data(const string &fname) {
   return json::parse(infile);
 }
 
+TEST_CASE("camera control", "[map]") {
+  Map map(20, 20);
+  WorldBuilder builder(map);
+  builder.generate();
+
+  Point center = map.center_camera({10,10}, 5, 5);
+
+  REQUIRE(center.x == 8);
+  REQUIRE(center.y == 8);
+
+  Point translation = map.map_to_camera({10,10}, center);
+
+  REQUIRE(translation.x == 2);
+  REQUIRE(translation.y == 2);
+}
+
 TEST_CASE("dijkstra algo test", "[map]") {
   json data = load_test_data("./tests/dijkstra.json");
 
diff --git a/tests/save.cpp b/tests/save.cpp
index abde54a..3ec1996 100644
--- a/tests/save.cpp
+++ b/tests/save.cpp
@@ -7,6 +7,7 @@
 #include <optional>
 #include <iostream>
 #include "map.hpp"
+#include "worldbuilder.hpp"
 #include "tser.hpp"
 
 using namespace fmt;
@@ -54,10 +55,10 @@ TEST_CASE("test using tser for serialization", "[config]") {
 }
 
 TEST_CASE("basic save a world", "[save]") {
-  /*
   DinkyECS::World world;
   Map map(20, 20);
-  map.generate();
+  WorldBuilder builder(map);
+  builder.generate();
 
   // configure a player as a fact of the world
   Player player{world.entity()};
@@ -99,5 +100,4 @@ TEST_CASE("basic save a world", "[save]") {
 
   Inventory &inv = world.get<Inventory>(player.entity);
   REQUIRE(inv.gold == 102);
-  */
 }
diff --git a/tests/worldbuilder.cpp b/tests/worldbuilder.cpp
index 83c5a98..fb5fa41 100644
--- a/tests/worldbuilder.cpp
+++ b/tests/worldbuilder.cpp
@@ -24,23 +24,6 @@ TEST_CASE("dumping and debugging", "[map]") {
   map.dump();
 }
 
-
-TEST_CASE("camera control", "[map]") {
-  Map map(20, 20);
-  WorldBuilder builder(map);
-  builder.generate();
-
-  Point center = map.center_camera({10,10}, 5, 5);
-
-  REQUIRE(center.x == 8);
-  REQUIRE(center.y == 8);
-
-  Point translation = map.map_to_camera({10,10}, center);
-
-  REQUIRE(translation.x == 2);
-  REQUIRE(translation.y == 2);
-}
-
 TEST_CASE("pathing", "[map]") {
   Map map(20, 20);
   WorldBuilder builder(map);