discsensormodel.java

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// $Id: DiscSensorModel.java,v 1.1 2004/04/14 18:24:29 mikedemmer Exp $

/*									tab:2
 *
 *
 * "Copyright (c) 2004 and The Regents of the University 
 * of California.  All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation for any purpose, without fee, and without written
 * agreement is hereby granted, provided that the above copyright
 * notice and the following two paragraphs appear in all copies of
 * this software.
 * 
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY
 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
 * DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
 * DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE
 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
 * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
 * UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
 *
 * Authors:	Michael Demmer
 * Date:        March 4 2004
 * Desc:        Disc sensor model
 *
 */

package net.tinyos.sim;

import net.tinyos.sim.*;

/*
 * Akin to the disc propagation model, this one returns the object's
 * value if the distance is within the disc limit and returns zero if
 * outside the disc.
 */
public class DiscSensorModel extends AdditiveSensorModel {
  private double limit;

  public DiscSensorModel(double limit) {
    this.limit = limit;
  }

  public int getValue(double distance, int sensor) {
    if (distance >= limit) return 0;
    return sensor;
  }
}