selectiveone2onewiring.h

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/***************************************************************************
 *   Copyright (C) 2005 by Robot Group Leipzig                             *
 *    martius@informatik.uni-leipzig.de                                    *
 *    fhesse@informatik.uni-leipzig.de                                     *
 *    der@informatik.uni-leipzig.de                                        *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   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.             *
 *                                                                         *
 *   $Log: selectiveone2onewiring.h,v $
 *   Revision 1.4  2008/04/17 14:54:45  martius
 *   randomGen added, which is a random generator with long period and an
 *    internal state. Each Agent has an instance and passed it to the controller
 *    and the wiring. This is good for
 *   a) repeatability on agent basis,
 *   b) parallel execution as done in ode_robots
 *
 *   Revision 1.3  2006/12/21 11:44:17  martius
 *   commenting style for doxygen //< -> ///<
 *   FOREACH and FOREACHC are macros for collection iteration
 *
 *   Revision 1.2  2006/07/14 12:24:02  martius
 *   selforg becomes HEAD
 *
 *   Revision 1.1.2.1  2005/11/16 11:24:28  martius
 *   moved to selforg
 *
 *   Revision 1.2  2005/10/24 13:32:07  fhesse
 *   comments adjusted and in doxygen style
 *
 *   Revision 1.1  2005/08/22 17:28:13  martius
 *   a 1 to 1 wiring that supports the selection of some sensors only
 *
 *                                                                         *
 ***************************************************************************/
#ifndef __SELECTIVEONE2ONEWIRING_H
#define __SELECTIVEONE2ONEWIRING_H

#include "one2onewiring.h"
#include <functional>

/** predicate to select sensors. 
    First parameter is the index 
    and the second parameter is the length (or number of sensors).
*/
struct select_predicate : public std::binary_function< int,  int, bool> { 
  virtual ~select_predicate(){}
  virtual bool operator()( int index,  int len) { return true; }
};

struct select_all : public  select_predicate { };

struct select_firsthalf : public  select_predicate {  
  virtual ~select_firsthalf(){}
  virtual bool operator()( int index,  int len) { return index < len/2; }
};

/// select sensors in the range \f[ [from, to] \f] (inclusively)
struct select_from_to : public  select_predicate {   
  virtual ~select_from_to(){}
  select_from_to( int from,  int to) : from(from), to(to) {}
  virtual bool operator()( int index,  int len) { return (index >= from) && (index <= to); }
  int from;
  int to;
};

/** 
 *   Implements a selective one to one wireing of robot sensors to inputs of the controller 
 *   and controller outputs to robot motors. 
 */
class SelectiveOne2OneWiring : public One2OneWiring{
public:
  /** constructor
      @param noise NoiseGenerator that is used for adding noise to sensor values  
      @param sel_sensor binary predicate taking the index and the length (number of sensors) 
             and decides which sensor to select
  */
  SelectiveOne2OneWiring(NoiseGenerator* noise, select_predicate* sel_sensor);
  virtual ~SelectiveOne2OneWiring();

  /** initializes the number of sensors and motors on robot side, calculate
      number of sensors and motors on controller side
  */
  virtual bool init(int robotsensornumber, int robotmotornumber, RandGen* randGen=0);

  /// Realizes one to one wiring from robot sensors to controller sensors. 
  //   @param rsensors pointer to array of sensorvalues from robot 
  //   @param rsensornumber number of sensors from robot
  //   @param csensors pointer to array of sensorvalues for controller  
  //   @param csensornumber number of sensors to controller
  //   @param noise size of the noise added to the sensors
  virtual bool wireSensors(const sensor* rsensors, int rsensornumber, 
                           sensor* csensors, int csensornumber,
                           double noise);

protected:  
  select_predicate* sel_sensor;

};

#endif

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