1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 Module: FGCondition.cpp
7 -------------- Copyright (C) 2003 Jon S. Berndt (jsb@hal-pc.org) --------------
9 This program is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free Software
11 Foundation; either version 2 of the License, or (at your option) any later
14 This program is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
19 You should have received a copy of the GNU General Public License along with
20 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21 Place - Suite 330, Boston, MA 02111-1307, USA.
23 Further information about the GNU General Public License can also be found on
24 the world wide web at http://www.gnu.org.
27 --------------------------------------------------------------------------------
29 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
30 COMMENTS, REFERENCES, and NOTES
31 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
33 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
37 #include "FGCondition.h"
41 static const char *IdSrc = "$Id$";
42 static const char *IdHdr = ID_CONDITION;
44 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
46 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
48 string FGCondition::indent = " ";
51 FGCondition::FGCondition(FGConfigFile* AC_cfg, FGPropertyManager* PropertyManager) :
52 PropertyManager(PropertyManager)
54 mComparison["EQ"] = eEQ;
55 mComparison["NE"] = eNE;
56 mComparison["GT"] = eGT;
57 mComparison["GE"] = eGE;
58 mComparison["LT"] = eLT;
59 mComparison["LE"] = eLE;
60 mComparison["=="] = eEQ;
61 mComparison["!="] = eNE;
62 mComparison[">"] = eGT;
63 mComparison[">="] = eGE;
64 mComparison["<"] = eLT;
65 mComparison["<="] = eLE;
67 TestParam1 = TestParam2 = 0L;
73 if (AC_cfg->GetValue("CONDITION_GROUP").empty()) { // define a condition
75 *AC_cfg >> property1 >> conditional >> property2;
76 TestParam1 = PropertyManager->GetNode(property1, true);
77 Comparison = mComparison[conditional];
79 if (property2.find_first_not_of("-.0123456789eE") == string::npos) {
80 TestValue = atof(property2.c_str());
82 TestParam2 = PropertyManager->GetNode(property2, true);
87 } else { // define a condition group
89 if (AC_cfg->GetValue("LOGIC") == "OR") Logic = eOR;
90 else if (AC_cfg->GetValue("LOGIC") == "AND") Logic = eAND;
92 AC_cfg->GetNextConfigLine();
93 while (AC_cfg->GetValue() != string("/CONDITION_GROUP")) {
94 conditions.push_back(FGCondition(AC_cfg, PropertyManager));
97 AC_cfg->GetNextConfigLine();
103 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
105 FGCondition::~FGCondition(void)
110 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
112 bool FGCondition::Evaluate(void )
114 vector <FGCondition>::iterator iConditions;
120 iConditions = conditions.begin();
122 while (iConditions < conditions.end()) {
123 if (!iConditions->Evaluate()) pass = false;
127 } else if (Logic == eOR) {
130 while (iConditions < conditions.end()) {
131 if (iConditions->Evaluate()) pass = true;
137 if (TestParam2 != 0L) compareValue = TestParam2->getDoubleValue();
138 else compareValue = TestValue;
140 switch (Comparison) {
142 cerr << "Undefined comparison operator." << endl;
145 pass = TestParam1->getDoubleValue() == compareValue;
148 pass = TestParam1->getDoubleValue() != compareValue;
151 pass = TestParam1->getDoubleValue() > compareValue;
154 pass = TestParam1->getDoubleValue() >= compareValue;
157 pass = TestParam1->getDoubleValue() < compareValue;
160 pass = TestParam1->getDoubleValue() <= compareValue;
163 cerr << "Unknown comparison operator." << endl;
170 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
172 void FGCondition::PrintCondition(void )
174 vector <FGCondition>::iterator iConditions;
181 cerr << "unset logic for test condition" << endl;
184 scratch = " if all of the following are true";
187 scratch = " if any of the following are true:";
190 scratch = " UNKNOWN";
191 cerr << "Unknown logic for test condition" << endl;
194 iConditions = conditions.begin();
195 cout << scratch << endl;
196 while (iConditions < conditions.end()) {
197 iConditions->PrintCondition();
201 if (TestParam2 != 0L)
202 cout << TestParam1->GetName() << " " << conditional << " " << TestParam2->GetName();
204 cout << TestParam1->GetName() << " " << conditional << " " << TestValue;
208 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
210 void FGCondition::convert(void)
212 if (conditions.empty())
213 cout << " " << property1 << " " << conditional << " " << property2 << endl;
215 for (int i; i<conditions.size(); i++) conditions[i].convert();
218 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
219 // The bitmasked value choices are as follows:
220 // unset: In this case (the default) JSBSim would only print
221 // out the normally expected messages, essentially echoing
222 // the config files as they are read. If the environment
223 // variable is not set, debug_lvl is set to 1 internally
224 // 0: This requests JSBSim not to output any messages
226 // 1: This value explicity requests the normal JSBSim
228 // 2: This value asks for a message to be printed out when
229 // a class is instantiated
230 // 4: When this value is set, a message is displayed when a
231 // FGModel object executes its Run() method
232 // 8: When this value is set, various runtime state variables
233 // are printed out periodically
234 // 16: When set various parameters are sanity checked and
235 // a message is printed out when they go out of bounds
237 void FGCondition::Debug(int from)
239 if (debug_lvl <= 0) return;
241 if (debug_lvl & 1) { // Standard console startup message output
242 if (from == 0) { // Constructor
246 if (debug_lvl & 2 ) { // Instantiation/Destruction notification
247 if (from == 0) cout << "Instantiated: FGCondition" << endl;
248 if (from == 1) cout << "Destroyed: FGCondition" << endl;
250 if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
252 if (debug_lvl & 8 ) { // Runtime state variables
254 if (debug_lvl & 16) { // Sanity checking
256 if (debug_lvl & 64) {
257 if (from == 0) { // Constructor
258 cout << IdSrc << endl;
259 cout << IdHdr << endl;