4 #include <simgear/xml/easyxml.hxx>
5 #include <simgear/misc/props.hxx>
7 #include "Airplane.hpp"
14 // This class forms the "glue" to the FlightGear codebase. It handles
15 // parsing of XML airplane files, interfacing to the properties
16 // system, and providing data for the use of the FGInterface object.
17 class FGFDM : public XMLVisitor {
22 void iterate(float dt);
23 void getExternalInput(float dt=1e6);
25 Airplane* getAirplane();
27 // XML parsing callback from XMLVisitor
28 virtual void startElement(const char* name, const XMLAttributes &atts);
31 struct AxisRec { char* name; int handle; };
32 struct EngRec { char* prefix; Thruster* eng; };
33 struct WeightRec { char* prop; float size; int handle; };
34 struct PropOut { SGPropertyNode* prop; int handle, type; bool left;
37 void setOutputProperties();
39 Wing* parseWing(XMLAttributes* a, const char* name);
40 int parseAxis(const char* name);
41 int parseOutput(const char* name);
42 void parseWeight(XMLAttributes* a);
43 void parsePropeller(XMLAttributes* a);
44 bool eq(const char* a, const char* b);
45 char* dup(const char* s);
46 int attri(XMLAttributes* atts, char* attr);
47 int attri(XMLAttributes* atts, char* attr, int def);
48 float attrf(XMLAttributes* atts, char* attr);
49 float attrf(XMLAttributes* atts, char* attr, float def);
51 // The core Airplane object we manage.
54 // The list of "axes" that we expect to find as input. These are
55 // typically property names.
61 // Engine types. Contains an EngRec structure.
64 // Output properties for the ControlMap
67 // Parsing temporaries