fixed the physics debug rendering now activates/deactivates properly

apps/openmw/mwrender/debugging.cpp

@@ -27,11 +27,7 @@ bool Debugging::toggleRenderMode (int mode){
 	 switch (mode)
     {
         case MWWorld::World::Render_CollisionDebug:
-
-            // TODO use a proper function instead of accessing the member variable
-            // directly.
-            eng->setDebugRenderingMode (!eng->isDebugCreated);
-            return eng->isDebugCreated;
+            return eng->toggleDebugRendering();
     }
 
     return false;

libs/openengine/bullet/physic.cpp

@@ -151,7 +151,8 @@ namespace Physic
 
 
 
-    PhysicEngine::PhysicEngine(BulletShapeLoader* shapeLoader)
+    PhysicEngine::PhysicEngine(BulletShapeLoader* shapeLoader) :
+        mDebugActive(0)
     {
         // Set up the collision configuration and dispatcher
         collisionConfiguration = new btDefaultCollisionConfiguration();
@@ -203,6 +204,13 @@ namespace Physic
             createDebugRendering();
         }
         mDebugDrawer->setDebugMode(mode);
+        mDebugActive = mode;
+    }
+
+    bool  PhysicEngine::toggleDebugRendering()
+    {
+        setDebugRenderingMode(!mDebugActive);
+        return mDebugActive;
     }
 
     PhysicEngine::~PhysicEngine()

libs/openengine/bullet/physic.hpp

@@ -199,6 +199,8 @@ namespace Physic
          */
         void setDebugRenderingMode(int mode);
 
+        bool toggleDebugRendering();
+
         /**
          * Return the closest object hit by a ray. If there are no objects, it will return ("",-1).
          */
@@ -230,6 +232,7 @@ namespace Physic
         //debug rendering
         BtOgre::DebugDrawer* mDebugDrawer;
         bool isDebugCreated;
+        bool mDebugActive;
     };
 
 }}