Added new shell of new class ConnectedParticleSystem, which will be used

for managing connect particle system for the purpose of doing missile trails etc.

src/osgParticle/ConnectedParticleSystem.cpp

@@ -0,0 +1,57 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2005 Robert Osfield 
+ *
+ * This library is open source and may be redistributed and/or modified under  
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ * 
+ * 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 
+ * OpenSceneGraph Public License for more details.
+*/
+
+#include <osg/Notify>
+#include <osgParticle/ConnectedParticleSystem>
+
+using namespace osgParticle;
+
+ConnectedParticleSystem::ConnectedParticleSystem():
+    _startParticle(0),
+    _lastParticleCreated(0)
+{
+}
+
+ConnectedParticleSystem::ConnectedParticleSystem(const ConnectedParticleSystem& copy, const osg::CopyOp& copyop):
+    ParticleSystem(copy,copyop),
+    _startParticle(0),
+    _lastParticleCreated(0)
+{
+    // need to think about how to copy _startParticle and _lastParticleCreated...
+    // should we just use indices?  Should we compute offsets into the particle system?
+    osg::notify(osg::NOTICE)<<"Warning: ConnectedParticleSystem copy constructor incomplete."<<std::endl;
+}
+
+ConnectedParticleSystem::~ConnectedParticleSystem()
+{
+}
+
+Particle* ConnectedParticleSystem::createParticle(const Particle* ptemplate)
+{
+    return ParticleSystem::createParticle(ptemplate);
+}
+        
+void ConnectedParticleSystem::destroyParticle(int i)
+{
+    return ParticleSystem::destroyParticle(i);
+}
+        
+void ConnectedParticleSystem::update(double dt)
+{
+    ParticleSystem::update(dt);
+}
+
+void ConnectedParticleSystem::drawImplementation(osg::State& state) const
+{
+    ParticleSystem::drawImplementation(state);
+}