From 7ec5673a7ecd3dcb48c9d7185a53be55588d0c36 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 17 Mar 2008 10:29:23 +0000
Subject: [PATCH] Added fire effect, enabled by --fire command line option. The
 new fire effect has been introduced to reproduce the scaling of paricle
 effects

---
 examples/osgsimulation/CMakeLists.txt    |  7 +++----
 examples/osgsimulation/osgsimulation.cpp | 14 +++++++++++++-
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/examples/osgsimulation/CMakeLists.txt b/examples/osgsimulation/CMakeLists.txt
index 02c3828d0..a8b293171 100644
--- a/examples/osgsimulation/CMakeLists.txt
+++ b/examples/osgsimulation/CMakeLists.txt
@@ -1,7 +1,6 @@
-#this file is automatically generated 
-
-
 SET(TARGET_SRC osgsimulation.cpp )
-SET(TARGET_ADDED_LIBRARIES osgSim osgGA )
+
+SET(TARGET_ADDED_LIBRARIES osgParticle osgSim osgGA )
+
 #### end var setup  ###
 SETUP_EXAMPLE(osgsimulation)
diff --git a/examples/osgsimulation/osgsimulation.cpp b/examples/osgsimulation/osgsimulation.cpp
index 93a736caf..a1458990a 100644
--- a/examples/osgsimulation/osgsimulation.cpp
+++ b/examples/osgsimulation/osgsimulation.cpp
@@ -64,6 +64,8 @@
 #include <osgGA/AnimationPathManipulator>
 #include <osgGA/TerrainManipulator>
 
+#include <osgParticle/FireEffect>
+
 #include <iostream>
 
 osg::Node* createEarth()
@@ -293,6 +295,7 @@ int main(int argc, char **argv)
     std::string pathfile;
     while (arguments.read("-p",pathfile)) {}
 
+    bool addFireEffect = arguments.read("--fire");
 
     // if user request help write it out to cout.
     if (arguments.read("-h") || arguments.read("--help"))
@@ -401,7 +404,16 @@ int main(int argc, char **argv)
                 osg::MatrixTransform* scaler = new osg::MatrixTransform;
                 scaler->addChild(cessna);
                 scaler->setMatrix(osg::Matrixd::scale(s,s,s)*osg::Matrixd::rotate(rotation));
-                scaler->getOrCreateStateSet()->setMode(GL_RESCALE_NORMAL,osg::StateAttribute::ON);        
+                scaler->getOrCreateStateSet()->setMode(GL_RESCALE_NORMAL,osg::StateAttribute::ON);
+                
+                if (addFireEffect)
+                {                
+                    osg::Vec3d center = cessna->getBound().center();
+                    
+                    osgParticle::FireEffect* fire = new osgParticle::FireEffect(center, 10.0f);
+                    scaler->addChild(fire);
+                }
+                
 
                 if (false)
                 {