Adds external dep dtentity

external/dtEntity/include/dtEntityOSG/layerattachpointcomponent.h

@@ -0,0 +1,128 @@
+#pragma once
+
+/* -*-c++-*-
+* dtEntity Game and Simulation Engine
+*
+* This library is free software; you can redistribute it and/or modify it under
+* the terms of the GNU Lesser General Public License as published by the Free
+* Software Foundation; either version 2.1 of the License, or (at your option)
+* any later version.
+*
+* This library is distributed in the hope that it will be useful, but WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+* details.
+*
+* You should have received a copy of the GNU Lesser General Public License
+* along with this library; if not, write to the Free Software Foundation, Inc.,
+* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*
+* Martin Scheffler
+*/
+
+#include <osg/ref_ptr>
+#include <dtEntity/defaultentitysystem.h>
+#include <dtEntityOSG/export.h>
+#include <dtEntityOSG/groupcomponent.h>
+#include <dtEntity/scriptaccessor.h>
+#include <dtEntity/stringid.h>
+#include <osg/Group>
+
+namespace dtEntityOSG
+{
+
+   class DTENTITY_OSG_EXPORT LayerAttachPointComponent
+      : public GroupComponent
+   {  
+    typedef GroupComponent BaseClass;
+
+   public:
+
+      static const dtEntity::ComponentType TYPE;
+      static const dtEntity::StringId NameId;
+      
+      LayerAttachPointComponent();
+      virtual ~LayerAttachPointComponent();
+      virtual void Finished();
+      void OnAddedToEntity(dtEntity::Entity& entity);
+      void OnRemovedFromEntity(dtEntity::Entity& entity);
+
+      /**
+        * Set osg group node that will hold layer component nodes
+        * as children. When this is set, all layer components are
+        * traversed and their nodes are attached to this group node
+        * if the layer name fits
+        */
+      virtual void SetNode(osg::Group* node);
+
+
+      /**
+        * Get name SID identifying this layer attach point
+        */
+      dtEntity::StringId GetName() const { return mName.Get(); }
+
+      /**
+        * Set name SID identifying this layer attach point.
+        * When the name is changed all layer components are
+        * traversed and their nodes are attached to this group node
+        * if the layer name fits
+        */
+      void SetName(dtEntity::StringId name);
+
+      virtual dtEntity::ComponentType GetType() const
+      {
+         return TYPE; 
+      }
+
+   private:
+      dtEntity::EntityManager* mEntityManager;
+      dtEntity::StringIdProperty mName;
+      dtEntity::StringId mCurrentName;
+   };
+
+   
+   ////////////////////////////////////////////////////////////////////////////////
+
+   class DTENTITY_OSG_EXPORT LayerAttachPointSystem
+      : public dtEntity::DefaultEntitySystem<LayerAttachPointComponent>
+      , public dtEntity::ScriptAccessor
+   {
+      friend class LayerAttachPointComponent;
+
+      typedef dtEntity::DefaultEntitySystem<LayerAttachPointComponent> BaseClass;
+
+   public:
+    
+      static const dtEntity::ComponentType TYPE;
+      static const dtEntity::StringId DefaultLayerId;
+      static const dtEntity::StringId RootId;
+
+      LayerAttachPointSystem(dtEntity::EntityManager& em);
+
+      virtual bool DeleteComponent(dtEntity::EntityId eid);
+
+      bool GetByName(dtEntity::StringId name, LayerAttachPointComponent*& recipient);
+
+      LayerAttachPointComponent* GetDefaultLayer();
+      LayerAttachPointComponent* GetRootLayer();
+
+      osg::Group* GetSceneGraphRoot()
+      {
+         return mSceneGraphRoot.get();
+      }
+
+      void CreateSceneGraphRootEntity(osg::Group* root);
+      
+      dtEntity::Property* ScriptGetByName(const dtEntity::PropertyArgs& args);
+      
+   private:
+
+      void RegisterByName(dtEntity::StringId, LayerAttachPointComponent*);
+      typedef std::map<dtEntity::StringId, LayerAttachPointComponent*> LayerByNameMap;
+      LayerByNameMap mLayerByNameMap;
+      osg::ref_ptr<osg::Group> mSceneGraphRoot;
+      dtEntity::EntityId mBaseEntityId;
+   };
+
+  
+}