恢复Duplication(SceneNode *)，并实现MeshComponent::Duplication...下一步Component::Duplication()改成由基类实现.

inc/hgl/component/MeshComponent.h

@@ -61,31 +61,33 @@ class MeshComponent:public RenderComponent
 {
     MeshComponentData *sm_data;
 
+public:
+
+    COMPONENT_CLASS_BODY(Mesh)
+
 public:
 
     MeshComponent(MeshComponentData *cd,MeshComponentManager *cm):RenderComponent(cd,cm){sm_data=cd;}
 
     virtual ~MeshComponent()=default;
 
-    static MeshComponentManager *GetDefaultManager()
-    {
-        return MeshComponentManager::GetDefaultManager();
-    }
-
-    static constexpr const size_t StaticHashCode()
-    {
-        return hgl::GetTypeHash<MeshComponent>();
-    }
-
-    const size_t    GetHashCode()const override
-    {
-        return MeshComponent::StaticHashCode();
-    }
-
             MeshComponentData &GetData()      {return *sm_data;}
     const   MeshComponentData &GetData()const {return *sm_data;}
 
     Mesh *GetMesh() const{return sm_data->mesh;}
+
+public:
+
+    virtual Component *Duplication() override
+    {
+        MeshComponentManager *manager=GetManager();
+
+        MeshComponent *mc=manager->CreateComponent(sm_data->mesh);
+
+        mc->SetLocalMatrix(GetLocalMatrix());
+
+        return mc;
+    }
 };//class MeshComponent
 
 COMPONENT_NAMESPACE_END