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flightgear/src/AIModel/AIScenario.cxx

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David Culp: Here's the newest AI stuff. The AIManager at init() creates a new scenario. Right now the default_scenario is hard coded in, but eventually the AIManager should get the scenario filename from preferences.xml. The scenario defines which AI objects will be created. Right now it only creates AIAircraft, but this is easily extended. The scenario also defines which flightplan will be assigned to the airplane. Scenario config files go in data/Data/AI. The Airplane gets a pointer to a FlightPlan object. Each airplane should get its own flightplan object, even if two airplanes have the same flight plan. This is because the flightplan maintains the iterator pointing to the current waypoint, and two airplanes might be at different locations (for instance if they were created at different times). The flight plan files go in data/Data/AI/FlightPlans. When the airplane gets to the waypoint named "END" it vanishes. The AIAircraft destructor deletes its flight plan (if it has one). The last waypoint is a place holder only. I called mine <WPT><NAME>"EOF"</NAME></WPT>.
2004-05-15 09:07:55 +00:00
// FGAIScenario - class for loading an AI scenario
// Written by David Culp, started May 2004
// - davidculp2@comcast.net
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#include "AIScenario.hxx"
#include <simgear/misc/sg_path.hxx>
#include <simgear/debug/logstream.hxx>
#include <simgear/structure/exception.hxx>
#include <simgear/constants.h>
#ifdef __BORLANDC__
# define exception c_exception
#endif
#include <simgear/props/props.hxx>
#include <Main/globals.hxx>
#include <Main/fg_props.hxx>
FGAIScenario::FGAIScenario(string filename)
{
int i;
SGPath path( globals->get_fg_root() );
path.append( ("/Data/AI/" + filename + ".xml").c_str() );
SGPropertyNode root;
try {
readProperties(path.str(), &root);
} catch (const sg_exception &e) {
SG_LOG(SG_GENERAL, SG_ALERT,
"Incorrect path specified for AI scenario: ");
cout << path.str() << endl;
return;
}
Use lower case letters instead.
2004-05-15 12:46:25 +00:00
SGPropertyNode * node = root.getNode("scenario");
David Culp: Here's the newest AI stuff. The AIManager at init() creates a new scenario. Right now the default_scenario is hard coded in, but eventually the AIManager should get the scenario filename from preferences.xml. The scenario defines which AI objects will be created. Right now it only creates AIAircraft, but this is easily extended. The scenario also defines which flightplan will be assigned to the airplane. Scenario config files go in data/Data/AI. The Airplane gets a pointer to a FlightPlan object. Each airplane should get its own flightplan object, even if two airplanes have the same flight plan. This is because the flightplan maintains the iterator pointing to the current waypoint, and two airplanes might be at different locations (for instance if they were created at different times). The flight plan files go in data/Data/AI/FlightPlans. When the airplane gets to the waypoint named "END" it vanishes. The AIAircraft destructor deletes its flight plan (if it has one). The last waypoint is a place holder only. I called mine <WPT><NAME>"EOF"</NAME></WPT>.
2004-05-15 09:07:55 +00:00
for (i = 0; i < node->nChildren(); i++) {
//cout << "Reading entry " << i << endl;
entry* en = new entry;
entries.push_back( en );
SGPropertyNode * entry_node = node->getChild(i);
Use lower case letters instead.
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en->callsign = entry_node->getStringValue("callsign", "none");
en->aircraft_class = entry_node->getStringValue("class", "jet_transport");
en->model_path = entry_node->getStringValue("model", "Models/Geometry/glider.ac");
en->flightplan = entry_node->getStringValue("flightplan", "");
David Culp: Here's the newest AI stuff. The AIManager at init() creates a new scenario. Right now the default_scenario is hard coded in, but eventually the AIManager should get the scenario filename from preferences.xml. The scenario defines which AI objects will be created. Right now it only creates AIAircraft, but this is easily extended. The scenario also defines which flightplan will be assigned to the airplane. Scenario config files go in data/Data/AI. The Airplane gets a pointer to a FlightPlan object. Each airplane should get its own flightplan object, even if two airplanes have the same flight plan. This is because the flightplan maintains the iterator pointing to the current waypoint, and two airplanes might be at different locations (for instance if they were created at different times). The flight plan files go in data/Data/AI/FlightPlans. When the airplane gets to the waypoint named "END" it vanishes. The AIAircraft destructor deletes its flight plan (if it has one). The last waypoint is a place holder only. I called mine <WPT><NAME>"EOF"</NAME></WPT>.
2004-05-15 09:07:55 +00:00
}
entry_iterator = entries.begin();
//cout << entries.size() << " entries read." << endl;
}
FGAIScenario::~FGAIScenario()
{
entries.clear();
}
FGAIScenario::entry*
FGAIScenario::getNextEntry( void )
{
return *entry_iterator;
}
int FGAIScenario::nEntries( void )
{
return entries.size();
}
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