--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/mobility/mobility-model.h	Mon Jul 23 15:53:54 2007 +0200
@@ -0,0 +1,93 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2006,2007 INRIA
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#ifndef MOBILITY_MODEL_H
+#define MOBILITY_MODEL_H
+
+#include "ns3/object.h"
+#include "position.h"
+#include "speed.h"
+
+namespace ns3 {
+
+/**
+ * \brief keep track of the current position of an object
+ *
+ * All space coordinates in this class and its subclasses are
+ * understood to be meters or meters/s. i.e., they are all
+ * metric international units.
+ */
+class MobilityModel : public Object
+{
+public:
+  static const InterfaceId iid;
+  MobilityModel ();
+  virtual ~MobilityModel () = 0;
+
+  /**
+   * \returns the current position
+   */
+  Position Get (void) const;
+  /**
+   * \param position the position to set.
+   */
+  void Set (const Position &position);
+  /**
+   * \returns the current position.
+   */
+  Speed GetSpeed (void) const;
+  /**
+   * \param position a reference to another mobility model
+   * \returns the distance between the two objects. Unit is meters.
+   */
+  double GetDistanceFrom (const MobilityModel &position) const;
+protected:
+  /**
+   * Must be invoked by subclasses when the course of the
+   * position changes to notify course change listeners.
+   */
+  void NotifyCourseChange (void) const;
+private:
+  /**
+   * \returns the current position.
+   *
+   * Concrete subclasses of this base class must 
+   * implement this method.
+   */
+  virtual Position DoGet (void) const = 0;
+  /**
+   * \param position the position to set.
+   *
+   * Concrete subclasses of this base class must 
+   * implement this method.
+   */
+  virtual void DoSet (const Position &position) = 0;
+  /**
+   * \returns the current speed.
+   *
+   * Concrete subclasses of this base class must 
+   * implement this method.
+   */
+  virtual Speed DoGetSpeed (void) const = 0;
+};
+
+}; // namespace ns3
+
+#endif /* MOBILITY_MODEL_H */