FGSwitch.h

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

 Header:       FGSwitch.h
 Author:       Jon S. Berndt
 Date started: 12/23/2002

 ------------- Copyright (C) 2002 jon@jsbsim.org  -------------

 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU Lesser 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 Lesser General Public License for more
 details.

 You should have received a copy of the GNU Lesser 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.

 Further information about the GNU Lesser General Public License can also be found on
 the world wide web at http://www.gnu.org.

HISTORY
--------------------------------------------------------------------------------

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
SENTRY
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/

#ifndef FGSWITCH_H
#define FGSWITCH_H

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
INCLUDES
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/

#include <iostream>
#include <cstdlib>

#include "FGFCSComponent.h"
#include "math/FGCondition.h"
#include "math/FGPropertyValue.h"

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
DEFINITIONS
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/

#define ID_SWITCH "$Id: FGSwitch.h,v 1.18 2013/11/24 11:40:57 bcoconni Exp $"

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
FORWARD DECLARATIONS
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/

namespace JSBSim {

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
CLASS DOCUMENTATION
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
CLASS DECLARATION
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/

class FGSwitch  : public FGFCSComponent
{
public:
  FGSwitch(FGFCS* fcs, Element* element);

  ~FGSwitch();

  bool Run(void);

private:

  struct test {
    FGCondition* condition;
    bool Default;
    double OutputVal;
    FGPropertyValue *OutputProp;
    float sign;

    double GetValue(void) {
      if (OutputProp == 0L) return OutputVal;
      else                  return OutputProp->GetValue()*sign;
    }

    test(void) { // constructor for the test structure
      Default    = false;
      OutputVal  = 0.0;
      OutputProp = 0L;
      sign       = 1.0;
    }

    void setTestValue(std::string value, std::string Name,
                      FGPropertyManager* propMan)
    {
      if (value.empty()) {
        std::cerr << "No VALUE supplied for switch component: " << Name << std::endl;
      } else {
        if (is_number(value)) {
          OutputVal = atof(value.c_str());
        } else {
          // "value" must be a property if execution passes to here.
          if (value[0] == '-') {
            sign = -1.0;
            value.erase(0,1);
          } else {
            sign = 1.0;
          }
          FGPropertyNode *node = propMan->GetNode(value, false);
          if (node) {
            OutputProp = new FGPropertyValue(node);
          } else {
            OutputProp = new FGPropertyValue(value, propMan);
          }
        }
      }
    }

  };

  std::vector <test*> tests;

  void Debug(int from);
};
}
#endif