--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/mobility/box.h	Wed Mar 03 10:58:27 2010 -0500
@@ -0,0 +1,113 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 Dan Broyles
+ *
+ * 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: Dan Broyles <dbroyl01@ku.edu>
+ */
+#ifndef BOX_H
+#define BOX_H
+
+#include "ns3/attribute.h"
+#include "ns3/attribute-helper.h"
+#include "ns3/vector.h"
+
+namespace ns3 {
+
+/**
+ * \brief a 3d box
+ */
+class Box
+{
+public:
+  enum Side {
+    RIGHT,
+    LEFT,
+    TOP,
+    BOTTOM,
+    UP,
+    DOWN
+  };
+  /**
+   * \param _xMin x coordinates of left boundary.
+   * \param _xMax x coordinates of right boundary.
+   * \param _yMin y coordinates of bottom boundary.
+   * \param _yMax y coordinates of top boundary.
+   * \param _zMin z coordinates of down boundary.
+   * \param _zMax z coordinates of up boundary.
+   *
+   * Create a box.
+   */
+  Box (double _xMin, double _xMax,
+       double _yMin, double _yMax,
+       double _zMin, double _zMax);
+  /**
+   * Create a zero-sized box located at coordinates (0.0,0.0,0.0)
+   */
+  Box ();
+  /**
+   * \param position the position to test.
+   * \returns true if the input position is located within the box, 
+   *          false otherwise.
+   *
+   * This method compares the x, y, and z coordinates of the input position.
+   */
+  bool IsInside (const Vector &position) const;
+  /**
+   * \param position the position to test.
+   * \returns the side of the cube the input position is closest to.
+   *
+   * This method compares the x, y, and z coordinates of the input position.
+   */
+  Side GetClosestSide (const Vector &position) const;
+  /**
+   * \param current the current position
+   * \param speed the current speed
+   * \returns the intersection point between the rectangle and the current+speed vector.
+   *
+   * This method assumes that the current position is located _inside_
+   * the cube and checks for this with an assert.
+   * This method compares only the x and y coordinates of the input position
+   * and speed. It ignores the z coordinate.
+   */
+  Vector CalculateIntersection (const Vector &current, const Vector &speed) const;
+
+  /* The x coordinate of the left bound of the box */
+  double xMin;
+  /* The x coordinate of the right bound of the box */
+  double xMax;
+  /* The y coordinate of the bottom bound of the box */
+  double yMin;
+  /* The y coordinate of the top bound of the box */
+  double yMax;
+  /* The z coordinate of the down bound of the box */
+  double zMin;
+  /* The z coordinate of the up bound of the box */
+  double zMax;
+};
+
+std::ostream &operator << (std::ostream &os, const Box &box);
+std::istream &operator >> (std::istream &is, Box &box);
+
+/**
+ * \class ns3::BoxValue
+ * \brief hold objects of type ns3::Box
+ */
+
+ATTRIBUTE_HELPER_HEADER (Box);
+
+} // namespace ns3
+
+#endif /* BOX_H */