serialization fixing world unit test and missing serialize for inert.

Game/Entity/EntityManager.cpp

@@ -140,4 +140,6 @@ Entity* deserialize_entity(Archive& ar, EntityManager& manager)
     }
 
     entity_base->is_dirty = false;
+
+    return entity_base;
 }

Game/Entity/entity_types.cpp

@@ -1,4 +1,9 @@
 #include <Entity/entity_types.h>
 
+#include <Core/Common/serialization.h>
+
 DEFINE_ENTITY_VERSIONED(Inert, 1)
-internal void serialize(Archive& /*ar*/, uint16 /*version*/, Inert& /*inert*/) {}
+internal void serialize(Archive& ar, uint16 /*version*/, Inert& inert) 
+{
+    SERIALIZE(ar, MeshInstance, inert.MeshInstance);
+}

Game/UnitTest/WorldUnitTest.cpp

@@ -11,6 +11,7 @@
 #include <Core/Thread/ThreadContext.h>
 #include <Data/World.h>
 #include <Entity/entity_types.h>
+#include <game.h>
 
 namespace UnitTest
 {
@@ -20,7 +21,9 @@ namespace UnitTest
 
         TempArena tempArena = scratch_begin(nullptr, 0);
 
-        World testWorld{};
+        GameState* gameState = GetGameState();
+        World      testWorld{};
+        gameState->World = &testWorld;
         InitWorld(&testWorld, tempArena.Arena);
 
         InitEntityManager(&testWorld);
@@ -53,7 +56,10 @@ namespace UnitTest
         ShutdownEntityManager();
         ShutdownWorld(&testWorld);
 
+        gameState->World = nullptr;
+
         scratch_end(tempArena);
+
         Log(LogLevel::Message, LogCategory::Game, "[UnitTest] PASSED: TestEntityAllocationAndWiring");
     }
 
@@ -61,12 +67,16 @@ namespace UnitTest
     {
         Log(LogLevel::Message, LogCategory::Game, "[UnitTest] Running TestInPlaceDeserialization...");
         TempArena tempArena = scratch_begin(nullptr, 0);
-        World     testWorld{};
+
+        GameState* gameState = GetGameState();
+        World      testWorld{};
+        gameState->World = &testWorld;
         InitWorld(&testWorld, tempArena.Arena);
+
         InitEntityManager(&testWorld);
         EntityManager& manager = *testWorld.EntityManager;
         // 1. In-memory .jasset text fixture (no streams or files needed)
-        String     asset_content = ConstString("; class\n"
+        String     asset_content = ConstString("; Class\n"
                                                    "Inert\n"
                                                    "; version\n"
                                                    "1\n"
@@ -100,6 +110,9 @@ namespace UnitTest
         Assert(loaded_inert->MeshInstance == 42);
         ShutdownEntityManager();
         ShutdownWorld(&testWorld);
+
+        gameState->World = nullptr;
+
         scratch_end(tempArena);
         Log(LogLevel::Message, LogCategory::Game, "[UnitTest] PASSED: TestInPlaceDeserialization");
     }
@@ -110,14 +123,18 @@ namespace UnitTest
 
         TempArena tempArena = scratch_begin(nullptr, 0);
 
-        World testWorld{};
+        GameState* gameState = GetGameState();
+        World      testWorld{};
+        gameState->World = &testWorld;
         InitWorld(&testWorld, tempArena.Arena);
+
         InitEntityManager(&testWorld);
         EntityManager& manager = *testWorld.EntityManager;
 
         Entity* entity = allocate_entity(manager, Inert::kind);
         Assert(entity->is_dirty == true);
 
+        // TODO : proper save and mutation
         // Simulate save
         entity->is_dirty = false;
         Assert(entity->is_dirty == false);
@@ -130,6 +147,8 @@ namespace UnitTest
         ShutdownEntityManager();
         ShutdownWorld(&testWorld);
 
+        gameState->World = nullptr;
+
         scratch_end(tempArena);
         Log(LogLevel::Message, LogCategory::Game, "[UnitTest] PASSED: TestDirtyTrackingLifecycle");
     }

Game/game.cpp

@@ -20,17 +20,6 @@
 #include <UnitTest/WorldUnitTest.h>
 #endif
 
-// namespace
-// {
-//     void serialize_test(Archive* ar, void* payload)
-//     {
-//         SerializedEntityTest* test = reinterpret_cast<SerializedEntityTest*>(payload);
-//         serialize_elem(ar, test->A);
-//     }
-// } // namespace
-//
-// DEFINE_ENTITY_SERIALIZED(SerializedEntityTest, serialize_test)
-
 namespace
 {
     GameState* gGameState = nullptr;
@@ -71,16 +60,16 @@ extern "C" JULIET_API void __cdecl GameUpdate(GameData* params, [[maybe_unused]]
         // Reserve cameras. Lets go with 4 for now
         ReserveCamera(4);
 
+#if JULIET_DEBUG
+        UnitTest::WorldUnitTest();
+#endif
+
         // Bootstrap world
         auto*  worldArena = ArenaAllocate({ .ReserveSize = Megabytes(1), .Name = "World Arena" });
         World* world      = ArenaPushStruct<World>(worldArena JULIET_DEBUG_PARAM("World"));
         gameState->World  = world;
         InitWorld(gameState->World, worldArena);
 
-#if JULIET_DEBUG
-        UnitTest::WorldUnitTest();
-#endif
-
         // Entity Use case
         InitEntityManager(gameState->World);
         auto& manager = GetEntityManager();