diff --git a/ag.cc b/ag.cc
index b3c9a59..86106ae 100644
--- a/ag.cc
+++ b/ag.cc
@@ -223,9 +223,7 @@ namespace ag
             {
                 Engine::Object * obj = getObject(L, -1);
                 if (obj != NULL)
-                {
                     obj->draw();
-                }
             }
             return 0;
         }
@@ -236,13 +234,17 @@ namespace ag
 
             if (argc == 4)
             {
-                double position[3];
-                for (int i = 0; i < 3; i++)
+                Engine::Object * obj = getObject(L, 1);
+                if (obj != NULL)
                 {
-                    int type = lua_type(L, i);
-                    if (type == LUA_TNUMBER  || type == LUA_TSTRING)
+                    double position[3];
+                    for (int i = 0; i < 3; i++)
                     {
-                        position[i] = lua_tonumber(L, i + 2);
+                        int type = lua_type(L, i);
+                        if (type == LUA_TNUMBER  || type == LUA_TSTRING)
+                        {
+                            position[i] = lua_tonumber(L, i + 2);
+                        }
                     }
                 }
             }
@@ -252,6 +254,14 @@ namespace ag
 
         int getPosition(lua_State * L)
         {
+            int argc = lua_gettop(L);
+            if (argc == 1)
+            {
+                Engine::Object * obj = getObject(L, 1);
+                if (obj != NULL)
+                {
+                }
+            }
             return 3;
         }
     }
diff --git a/anaglym.cc b/anaglym.cc
index 257c6ab..04546b1 100644
--- a/anaglym.cc
+++ b/anaglym.cc
@@ -237,5 +237,5 @@ void Engine::run()
 
 void Engine::Object::loadPhy(const std::string & path, bool static_data)
 {
-    m_geoms = g_engine->m_world.loadPhy(path, static_data);
+    geoms = g_engine->m_world.loadPhy(path, &body, static_data);
 }
diff --git a/anaglym.h b/anaglym.h
index 16427e2..2c77364 100644
--- a/anaglym.h
+++ b/anaglym.h
@@ -17,9 +17,11 @@ class Engine
         class Object
         {
             public:
+                Object() { body = 0; }
                 WFObj * wfobj;
                 GLuint display_list;
-                std::vector<dGeomID> m_geoms;
+                std::vector<dGeomID> geoms;
+                dBodyID body;
 
                 void draw() { glCallList(display_list); }
                 void loadPhy(const std::string & path,