Adds external dep dtentity

external/dtEntity/include/dtEntityOSG/nodemaskvisitor.h

@@ -0,0 +1,49 @@
+#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/Group>
+#include <osg/NodeVisitor>
+
+namespace dtEntityOSG
+{
+   class NodeMaskVisitor : public osg::NodeVisitor
+   {
+   public:
+
+      NodeMaskVisitor(unsigned int mask) : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN)
+      {
+         mMask = mask;
+      }
+      
+      virtual void apply(osg::Group& node)
+      {
+        node.setNodeMask(mMask);
+        this->traverse(node);
+      }
+      
+   private:
+
+      unsigned int mMask;
+   };
+}
+