feat: saving/loading resource entries

src/world/World.cpp

@@ -52,13 +52,30 @@ void World::updateTimers(float delta) {
     totalTime += delta;
 }
 
+void World::writeResources(const Content* content) {
+    auto root = dynamic::Map();
+    for (size_t typeIndex = 0; typeIndex < RESOURCE_TYPES_COUNT; typeIndex++) {
+        auto typeName = to_string(static_cast<ResourceType>(typeIndex));
+        auto& list = root.putList(typeName);
+        auto& indices = content->resourceIndices[typeIndex];
+        for (size_t i = 0; i < indices.size(); i++) {
+            auto& map = list.putMap();
+            map.put("name", indices.getName(i));
+            if (auto data = indices.getSavedData(i)) {
+                map.put("saved", data);
+            }
+        }
+    }
+    files::write_json(wfile->getResourcesFile(), &root);
+}
+
 void World::write(Level* level) {
     const Content* content = level->content;
     level->chunks->saveAll();
     nextEntityId = level->entities->peekNextID();
     wfile->write(this, content);
+    
     auto playerFile = dynamic::Map();
-
     auto& players = playerFile.putList("players");
     for (const auto& object : level->objects) {
         if (auto player = std::dynamic_pointer_cast<Player>(object)) {
@@ -66,6 +83,8 @@ void World::write(Level* level) {
         }
     }
     files::write_json(wfile->getPlayerFile(), &playerFile);
+
+    writeResources(content);
 }
 
 std::unique_ptr<Level> World::create(