entity per world

Game/Entity/EntityManager.cpp

@@ -7,6 +7,7 @@
 #include <Entity/entity_types.h>
 #include <game.h>
 #include <Graphics/MeshRenderer.h>
+#include "Engine/user.h"
 
 EntityID EntityManager::ID = 0;
 
@@ -45,6 +46,17 @@ EntityManager& GetEntityManager()
     return *entityManager;
 }
 
+EntityID generate_next_entity_id(EntityManager& manager)
+{
+    UserID user = get_local_user_id();
+    Assert(user != kInvalid_user_id);
+    Assert(manager.next_local_counter != kEntityID_user_id_mask);
+
+    EntityID new_id = make_entity_id(user, manager.next_local_counter);
+    manager.next_local_counter += 1ULL;
+    return new_id;
+}
+
 EntityTemplate* RegisterEntity(EntityManager& manager, Entity* base, DerivedType entity)
 {
     base->ID      = EntityManager::ID++;
@@ -143,3 +155,16 @@ Entity* deserialize_entity(Archive& ar, EntityManager& manager)
 
     return entity_base;
 }
+
+void update_local_counter(EntityManager& manager, EntityID entity_id)
+{
+    uint8 user_id = get_local_user_id();
+    if (get_user_id(entity_id) == user_id)
+    {
+        uint64 counter = get_local_counter(entity_id);
+        if (counter >= manager.next_local_counter)
+        {
+            manager.next_local_counter = counter + 1ULL;
+        }
+    }
+}