Fix fog wrt LOD nodes

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@8633 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/tracks/track.cpp

@@ -1274,9 +1274,11 @@ void Track::loadTrackModel(World* parent, unsigned int mode_id)
     {
         const unsigned int count = m_all_nodes.size();
         for(unsigned int i=0; i<count; i++)
-            m_all_nodes[i]->setMaterialFlag(video::EMF_FOG_ENABLE, true);
+        {
+            adjustForFog(m_all_nodes[i]);
+        }
     }
-    
+    m_track_object_manager->enableFog(m_use_fog);
     
     // Sky dome and boxes support
     // --------------------------
@@ -1365,6 +1367,15 @@ void Track::loadTrackModel(World* parent, unsigned int mode_id)
 void Track::adjustForFog(scene::ISceneNode *node)
 {
     node->setMaterialFlag(video::EMF_FOG_ENABLE, m_use_fog);
+    
+    if (node->getType() == scene::ESNT_LOD_NODE)
+    {
+        std::vector<scene::ISceneNode*>& subnodes = ((LODNode*)node)->getAllNodes();
+        for (unsigned int n=0; n<subnodes.size(); n++)
+        {
+            subnodes[n]->setMaterialFlag(video::EMF_FOG_ENABLE, true);
+        }
+    }
 }   // adjustForFog
 
 //-----------------------------------------------------------------------------

src/tracks/track_object.hpp

@@ -86,6 +86,8 @@ public:
      *  e.g. be overwritten by physical objects etc. */
     virtual void handleExplosion(const Vec3& pos, bool directHit) {};
     void         setEnable(bool mode);
+    
+    scene::ISceneNode* getNode() { return m_node; }
 };   // TrackObject
 
 #endif

src/tracks/track_object_manager.cpp

@@ -22,6 +22,7 @@
 #include "config/user_config.hpp"
 #include "animations/billboard_animation.hpp"
 #include "animations/three_d_animation.hpp"
+#include "graphics/lod_node.hpp"
 #include "io/xml_node.hpp"
 #include "physics/physical_object.hpp"
 #include "tracks/track_object.hpp"
@@ -120,3 +121,21 @@ void TrackObjectManager::update(float dt)
 }   // update
 
 // ----------------------------------------------------------------------------
+
+void TrackObjectManager::enableFog(bool enable)
+{
+    const unsigned int count = m_all_objects.size();
+    for(unsigned int i=0; i<count; i++)
+    {
+        m_all_objects[i]->getNode()->setMaterialFlag(video::EMF_FOG_ENABLE, true);
+                
+        if (m_all_objects[i]->getNode()->getType() == scene::ESNT_LOD_NODE)
+        {
+            std::vector<scene::ISceneNode*>& nodes = ((LODNode*)m_all_objects[i]->getNode())->getAllNodes();
+            for (unsigned int n=0; n<nodes.size(); n++)
+            {
+                nodes[n]->setMaterialFlag(video::EMF_FOG_ENABLE, enable);
+            }
+        }
+    }
+}

src/tracks/track_object_manager.hpp

@@ -49,6 +49,10 @@ public:
     void handleExplosion(const Vec3 &pos, const PhysicalObject *mp) const;
     void reset();
     void init();
+    
+    /** Enable or disable fog on objects */
+    void enableFog(bool enable);
+
 };   // class TrackObjectManager
 
 #endif