conversion to c by gemini 4 argon

Game/Data/World.h

@@ -1,38 +1,39 @@
 #pragma once
 
-#include <Core/Common/NonNullPtr.h>
 #include <Core/Common/String.h>
 #include <Core/Container/Vector.h>
 #include <Core/Memory/MemoryArena.h>
 #include <Entity/Entity.h>
 
-struct Archive;
-struct EntityManager;
+typedef struct Archive       Archive;
+typedef struct EntityManager EntityManager;
 
 #pragma pack(push, 1)
+typedef struct WorldFileHeader WorldFileHeader;
 struct WorldFileHeader
 {
-    uint32 Magic = 0x444C574A; // 'JWLD' in little-endian
+    uint32 Magic; // 0x444C574A ('JWLD' in little-endian)
 };
 #pragma pack(pop)
 
-constexpr uint32 kWorldMagic   = 0x444C574A; // 'JWLD'
-constexpr uint32 kWorldVersion = 1;
+#define kWorldMagic   ((uint32)0x444C574A) // 'JWLD'
+#define kWorldVersion ((uint32)1)
 
+typedef struct World World;
 struct World
 {
-    Arena*         WorldArena    = nullptr;
-    EntityManager* EntityManager = nullptr;
+    Arena*         WorldArena;
+    EntityManager* EntityManager;
 };
 
-void InitWorld(NonNullPtr<World> world, NonNullPtr<Arena> arena);
-void ShutdownWorld(NonNullPtr<World> world);
+void InitWorld(World* world, Arena* arena);
+void ShutdownWorld(World* world);
 
-void AddToWorld(NonNullPtr<World> world, NonNullPtr<Entity> entity);
-void RemoveWorldEntity(World& world, size_t index);
+void AddToWorld(World* world, Entity* entity);
+void RemoveWorldEntity(World* world, size_t index);
 
-void Serialize(Archive& data, World& world, String filename);
+void SerializeWorld(Archive* data, World* world, String filename);
 
 #if JULIET_EDITOR
-void RenderWorldEditorUI(World& world);
+void RenderWorldEditorUI(World* world);
 #endif