]> git.mxchange.org Git - flightgear.git/blob - src/FDM/JSBSim/FGTank.cpp
Sync the JSBSim code with the Jon & Tony's devel version.
[flightgear.git] / src / FDM / JSBSim / FGTank.cpp
1 /*******************************************************************************
2
3  Module:       FGTank.cpp
4  Author:       Jon Berndt
5  Date started: 01/21/99
6  Called by:    FGAircraft
7
8  ------------- Copyright (C) 1999  Jon S. Berndt (jsb@hal-pc.org) -------------
9
10  This program is free software; you can redistribute it and/or modify it under
11  the terms of the GNU General Public License as published by the Free Software
12  Foundation; either version 2 of the License, or (at your option) any later
13  version.
14
15  This program is distributed in the hope that it will be useful, but WITHOUT
16  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
18  details.
19
20  You should have received a copy of the GNU General Public License along with
21  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
22  Place - Suite 330, Boston, MA  02111-1307, USA.
23
24  Further information about the GNU General Public License can also be found on
25  the world wide web at http://www.gnu.org.
26
27 FUNCTIONAL DESCRIPTION
28 --------------------------------------------------------------------------------
29 See header file.
30
31 HISTORY
32 --------------------------------------------------------------------------------
33 01/21/99   JSB   Created
34
35 ********************************************************************************
36 INCLUDES
37 *******************************************************************************/
38 #include "FGTank.h"
39
40 /*******************************************************************************
41 ************************************ CODE **************************************
42 *******************************************************************************/
43
44
45 FGTank::FGTank(FGConfigFile* AC_cfg)
46 {
47   string type;
48
49   *AC_cfg >> type;                              // Type = 0: fuel, 1: oxidizer
50
51   if (type == "FUEL") Type = ttFUEL;
52   else if (type == "OXIDIZER") Type = ttOXIDIZER;
53   else Type = ttUNKNOWN;
54   *AC_cfg >> X;                                 // inches
55   *AC_cfg >> Y;                                 // "
56   *AC_cfg >> Z;                                 // "
57   *AC_cfg >> Radius;                            // "
58   *AC_cfg >> Capacity;                          // pounds (amount it can hold)
59   *AC_cfg >> Contents;                          // pounds  (amount it is holding)
60   Selected = true;
61   if(Capacity != 0)
62     PctFull = 100.0*Contents/Capacity;            // percent full; 0 to 100.0
63   else {
64     Contents=0;
65     PctFull=0;
66   }     
67 }
68
69
70 FGTank::~FGTank(void)
71 {
72 }
73
74
75 float FGTank::Reduce(float used)
76 {
77   float shortage;
78
79   if (used < Contents) {
80     Contents -= used;
81     PctFull = 100.0*Contents/Capacity;
82     return Contents;
83   } else {
84     shortage = Contents - used;
85     Contents = 0.0;
86     PctFull = 0.0;
87     Selected = false;
88     return shortage;
89   }
90 }
91