wip entity deserialization phase 1. Unit test not passing because of globals that assume only one entity manager / game state.

Game/Entity/Entity.cpp

@@ -15,9 +15,36 @@ void serialize(Archive& ar, NonNullPtr<Entity> entity)
 }
 
 DEFINE_CLASS_VERSIONED(Entity, 1, nullptr)
-
 internal void serialize(Archive& ar, uint16 /*version*/, Entity& entity)
 {
     SERIALIZE(ar, id, entity.ID);
     SERIALIZE(ar, position, entity.position);
 }
+
+const Class* resolve_entity_class(uint8 kind, uint32 crc)
+{
+    Assert(kind <= ENTITY(Count));
+
+    NonNullPtr<const Class> class_ptr = kEntity_type_class_ptr[kind];
+    Assert(class_ptr->CRC == crc);
+
+    return class_ptr.Get();
+}
+
+const Class* find_class_by_name(String name)
+{
+    Assert(IsValid(name));
+
+    const Class* result   = nullptr;
+    const uint32 name_crc = crc32(name.Str, name.Size);
+    for (uint8 kind = 0; kind < ENTITY(Count); ++kind)
+    {
+        const Class* class_ptr = resolve_entity_class(kind, name_crc);
+        if (class_ptr != nullptr)
+        {
+            result = class_ptr;
+            break;
+        }
+    }
+    return result;
+}