refacto: don't use RenderingEngine singleton on CAO

* we don't need on CAO side more than SceneManager, and temporary. Pass only required SceneManager as a parameter to build CAO and add them to the current scene
* Use temporary the RenderingEngine singleton from ClientEnvironment, waitfor for better solution
* Make ClientActiveObject::addToScene virtual function mandatory to be defined by children to ensure we don't forget to properly define it

1 files changed, 5 insertions, 1 deletions

diff --git a/src/client/clientobject.h b/src/client/clientobject.h
index ecd8059ef..dbc2f22cf 100644
--- a/src/client/clientobject.h
+++ b/src/client/clientobject.h
@@ -33,13 +33,17 @@ class LocalPlayer;
 struct ItemStack;
 class WieldMeshSceneNode;
 
+namespace irr { namespace scene {
+	class ISceneManager;
+}}
+
 class ClientActiveObject : public ActiveObject
 {
 public:
 	ClientActiveObject(u16 id, Client *client, ClientEnvironment *env);
 	virtual ~ClientActiveObject();
 
-	virtual void addToScene(ITextureSource *tsrc) {}
+	virtual void addToScene(ITextureSource *tsrc, irr::scene::ISceneManager *smgr) = 0;
 	virtual void removeFromScene(bool permanent) {}
 
 	virtual void updateLight(u32 day_night_ratio) {}