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flightgear/JSBsim/FGModel.cpp

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/*******************************************************************************
Module: FGModel.cpp
Author: Jon Berndt
Date started: 11/11/98
Purpose: Base class for all models
Called by: FGSimExec, et. al.
------------- Copyright (C) 1999 Jon S. Berndt (jsb@hal-pc.org) -------------
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.
Further information about the GNU General Public License can also be found on
the world wide web at http://www.gnu.org.
FUNCTIONAL DESCRIPTION
--------------------------------------------------------------------------------
This base class for the FGAero, FGRotational, etc. classes defines methods
common to all models.
HISTORY
--------------------------------------------------------------------------------
11/11/98 JSB Created
********************************************************************************
INCLUDES
*******************************************************************************/
#include "FGModel.h"
#include "FGState.h"
#include "FGFDMExec.h"
#include "FGAtmosphere.h"
#include "FGFCS.h"
#include "FGAircraft.h"
#include "FGTranslation.h"
#include "FGRotation.h"
#include "FGPosition.h"
#include "FGAuxiliary.h"
#include "FGOutput.h"
/*******************************************************************************
************************************ CODE **************************************
*******************************************************************************/
FGModel::FGModel(FGFDMExec* fdmex)
{
FDMExec = fdmex;
NextModel = 0L;
State = 0;
Atmosphere = 0;
FCS = 0;
Aircraft = 0;
Translation = 0;
Rotation = 0;
Position = 0;
Auxiliary = 0;
Output = 0;
exe_ctr = 1;
}
FGModel::~FGModel()
{
}
bool FGModel::InitModel(void)
{
State = FDMExec->GetState();
Atmosphere = FDMExec->GetAtmosphere();
FCS = FDMExec->GetFCS();
Aircraft = FDMExec->GetAircraft();
Translation = FDMExec->GetTranslation();
Rotation = FDMExec->GetRotation();
Position = FDMExec->GetPosition();
Auxiliary = FDMExec->GetAuxiliary();
Output = FDMExec->GetOutput();
if (!State ||
!Atmosphere ||
!FCS ||
!Aircraft ||
!Translation ||
!Rotation ||
!Position ||
!Auxiliary ||
!Output) return(false);
else return(true);
}
bool FGModel::Run()
{
if (exe_ctr == 1) {
if (exe_ctr++ >= rate) exe_ctr = 1;
return false;
} else {
if (exe_ctr++ >= rate) exe_ctr = 1;
return true;
}
}