Index: trunk/src/game/Object.cpp
===================================================================
--- trunk/src/game/Object.cpp (revision 102)
+++ trunk/src/game/Object.cpp (revision 119)
@@ -1489,6 +1489,16 @@
     GetNearPoint2D(x,y,distance2d+searcher_size,absAngle);
     
-    z = GetPositionZ();
-    
-    UpdateGroundPositionZ(x,y,z);
-}
+	z = GetPositionZ();
+
+	UpdateGroundPositionZ(x,y,z);
+}
+
+void WorldObject::GetRandomContactPoint( const WorldObject* obj, float &x, float &y, float &z, float distance2dMin, float distance2dMax ) const
+{
+	float object_size = obj->GetObjectSize();//here we use object_size to determine the angle offset, the bigger object the smaller angle offset, then this makes mob move naturally in visual.
+	//let assume 12.0f is the max size for object to have 0 angle offset.
+	float angle_offset_ratio = 1 - object_size/12.0f;
+	if (angle_offset_ratio < 0.05) angle_offset_ratio = 0.05;
+	// angle to face `obj` to `this`plus a random angle offset(from -90 degree to 90 degree)*angle_offset_ratio using distance from distance2dMin to distance2dMax includes size of `obj`
+	GetNearPoint(obj,x,y,z,object_size,distance2dMin+(distance2dMax-distance2dMin)*rand_norm(), GetAngle( obj ) + (M_PI_2 - M_PI * rand_norm()) * angle_offset_ratio);
+}
Index: trunk/src/game/Object.h
===================================================================
--- trunk/src/game/Object.h (revision 118)
+++ trunk/src/game/Object.h (revision 119)
@@ -373,13 +373,5 @@
             GetNearPoint(obj,x,y,z,obj->GetObjectSize(),distance2d,GetAngle( obj ));
         }
-        void GetRandomContactPoint( const WorldObject* obj, float &x, float &y, float &z, float distance2dMin, float distance2dMax ) const
-        {
-            float object_size = obj->GetObjectSize();//here we use object_size to determine the angle offset, the bigger object the smaller angle offset, then this makes mob move naturally in visual.
-            //let assume 12.0f is the max size for object to have 0 angle offset.
-            float angle_offset_ratio = 1 - object_size/12.0f;
-            if (angle_offset_ratio < 0.05) angle_offset_ratio = 0.05;
-            // angle to face `obj` to `this`plus a random angle offset(from -90 degree to 90 degree)*angle_offset_ratio using distance from distance2dMin to distance2dMax includes size of `obj`
-            GetNearPoint(obj,x,y,z,object_size,distance2dMin+(distance2dMax-distance2dMin)*rand_norm(), GetAngle( obj ) + (M_PI_2 - M_PI * rand_norm()) * angle_offset_ratio);
-        }
+        void GetRandomContactPoint( const WorldObject* obj, float &x, float &y, float &z, float distance2dMin, float distance2dMax ) const;
 
         float GetObjectSize() const