Adds external dep dtentity

external/dtEntity/include/dtEntityOSG/groupcomponent.h

@@ -0,0 +1,105 @@
+#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 <dtEntityOSG/export.h>
+#include <dtEntity/defaultentitysystem.h>
+#include <dtEntity/dynamicproperty.h>
+#include <dtEntityOSG/nodecomponent.h>
+#include <dtEntity/property.h>
+#include <dtEntity/stringid.h>
+
+namespace osg
+{
+   class Group;
+}
+
+namespace dtEntityOSG
+{
+   /**
+    * Holds a single OSG group.
+    */
+   class DTENTITY_OSG_EXPORT GroupComponent : public NodeComponent
+   {
+   public:
+
+      typedef NodeComponent BaseClass;
+
+      static const dtEntity::ComponentType TYPE;
+      static const dtEntity::StringId ChildrenId;
+   
+      /**
+       * CTor, creates a new group component
+       */
+      GroupComponent();
+
+      /**
+       * CTor, uses passed group component
+       */
+      GroupComponent(osg::Group* group);
+
+      virtual ~GroupComponent();
+
+      virtual dtEntity::ComponentType GetType() const
+      { 
+         return TYPE; 
+      }
+
+      virtual osg::Group* GetGroup() const;
+      
+      // return group to attach children to
+      virtual osg::Group* GetAttachmentGroup() const { return GetGroup(); }
+
+      bool AddChildComponent(dtEntity::ComponentType c);
+      bool RemoveChildComponent(dtEntity::ComponentType c);
+
+      /**
+       * Expects an array of stringid properties containing component types
+       * of children. These will be attached.
+       */
+      void SetChildren(const dtEntity::PropertyArray& arr);
+      dtEntity::PropertyArray GetChildren() const { return mChildrenVal.Get(); }
+
+   private:
+
+      // to prevent redundant code in constructors
+      void Init();
+
+      dtEntity::DynamicArrayProperty mChildren;
+      dtEntity::ArrayProperty mChildrenVal;
+   };
+
+
+   ///////////////////////////////////////////////////////////////////////////
+   // storage only
+   class DTENTITY_OSG_EXPORT GroupSystem
+      : public dtEntity::DefaultEntitySystem<GroupComponent>
+   {
+   public:
+      GroupSystem(dtEntity::EntityManager& em)
+         : dtEntity::DefaultEntitySystem<GroupComponent>(em, NodeComponent::TYPE)
+      {
+
+      }
+   };
+   
+
+}