Allow re-creation of object manager

Removing lazy initialisation of it.

src/openrct2/Context.cpp

@@ -28,6 +28,7 @@
 #include "core/String.hpp"
 #include "FileClassifier.h"
 #include "network/network.h"
+#include "object/ObjectManager.h"
 #include "object/ObjectRepository.h"
 #include "OpenRCT2.h"
 #include "ParkImporter.h"
@@ -77,6 +78,7 @@ namespace OpenRCT2
 
         // Services
         IObjectRepository *         _objectRepository       = nullptr;
+        IObjectManager *            _objectManager          = nullptr;
         ITrackDesignRepository *    _trackDesignRepository  = nullptr;
         IScenarioRepository *       _scenarioRepository     = nullptr;
 
@@ -188,6 +190,7 @@ namespace OpenRCT2
             // }
 
             _objectRepository = CreateObjectRepository(_env);
+            _objectManager = CreateObjectManager(_objectRepository);
             _trackDesignRepository = CreateTrackDesignRepository(_env);
             _scenarioRepository = CreateScenarioRepository(_env);
 

src/openrct2/object/ObjectManager.cpp

@@ -547,16 +547,14 @@ private:
 
 static std::unique_ptr<ObjectManager> _objectManager;
 
-IObjectManager * GetObjectManager()
+IObjectManager * CreateObjectManager(IObjectRepository * objectRepository)
-{
-    if (_objectManager == nullptr)
-    {
-        IObjectRepository * objectRepository = GetObjectRepository();
-        if (objectRepository != nullptr)
 {
     _objectManager = std::unique_ptr<ObjectManager>(new ObjectManager(objectRepository));
+    return _objectManager.get();
 }
-    }
+
+IObjectManager * GetObjectManager()
+{
     return _objectManager.get();
 }
 

src/openrct2/object/ObjectManager.h

@@ -33,6 +33,7 @@ extern "C"
 
 #ifdef __cplusplus
 
+interface   IObjectRepository;
 class       Object;
 struct      ObjectRepositoryItem;
 
@@ -54,6 +55,7 @@ interface IObjectManager
     virtual std::vector<const ObjectRepositoryItem *> GetPackableObjects() abstract;
 };
 
+IObjectManager * CreateObjectManager(IObjectRepository * objectRepository);
 IObjectManager * GetObjectManager();
 
 #endif