fix

src/engine.hpp

@@ -18,7 +18,6 @@
 #include <vector>
 #include <mutex>
 
-class Level;
 class Screen;
 class EnginePaths;
 class ResPaths;

src/objects/Players.cpp

@@ -42,7 +42,7 @@ dv::value Players::serialize() const {
     for (const auto& [id, player] : players) {
         list.add(player->serialize());
     }
-    return list;
+    return root;
 }
 
 void Players::deserialize(const dv::value& src) {