#include <simgear/misc/sg_path.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/nasal/nasal.h>
+#include <simgear/scene/model/modellib.hxx>
+#include <simgear/xml/easyxml.hxx>
+
+#include <map>
+using std::map;
+
class FGNasalScript;
+class FGNasalListener;
class FGNasalSys : public SGSubsystem
{
FGNasalSys();
virtual ~FGNasalSys();
virtual void init();
- virtual void update(double dt) { /* noop */ }
+ virtual void update(double dt);
// Loads a nasal script from an external file and inserts it as a
// global module of the specified name.
FGNasalScript* parseScript(const char* src, const char* name=0);
// Implementation of the settimer extension function
- void setTimer(int argc, naRef* args);
+ void setTimer(naContext c, int argc, naRef* args);
// Implementation of the setlistener extension function
- void setListener(int argc, naRef* args);
+ naRef setListener(naContext c, int argc, naRef* args);
+ naRef removeListener(naContext c, int argc, naRef* args);
// Returns a ghost wrapper for the current _cmdArg
naRef cmdArgGhost();
-
+
// Callbacks for command and timer bindings
virtual bool handleCommand(const SGPropertyNode* arg);
void createModule(const char* moduleName, const char* fileName,
- const char* src, int len);
-
- void screenPrint(const char* src);
-
+ const char* src, int len, const SGPropertyNode* cmdarg=0,
+ int argc=0, naRef*args=0);
+
+ void deleteModule(const char* moduleName);
+
+ naRef call(naRef code, int argc, naRef* args, naRef locals);
+ naRef propNodeGhost(SGPropertyNode* handle);
+
private:
friend class FGNasalScript;
friend class FGNasalListener;
//
struct NasalTimer {
virtual void timerExpired();
+ virtual ~NasalTimer() {}
naRef handler;
int gcKey;
FGNasalSys* nasal;
};
+ // Listener
+ map<int, FGNasalListener *> _listener;
+ vector<FGNasalListener *> _dead_listener;
+ static int _listenerId;
+
void loadPropertyScripts();
void hashset(naRef hash, const char* key, naRef val);
- void logError();
+ void logError(naContext);
naRef parse(const char* filename, const char* buf, int len);
naRef genPropsModule();
- naRef propNodeGhost(SGPropertyNode* handle);
// This mechanism is here to allow naRefs to be passed to
// locations "outside" the interpreter. Normally, such a
naContext _context;
naRef _globals;
- SGPropertyNode* _cmdArg;
+ SGPropertyNode_ptr _cmdArg;
int _nextGCKey;
naRef _gcHash;
+ int _callCount;
public: void handleTimer(NasalTimer* t);
};
+
class FGNasalScript {
public:
~FGNasalScript() { _nas->gcRelease(_gcKey); }
FGNasalSys* _nas;
};
+
class FGNasalListener : public SGPropertyChangeListener {
public:
- FGNasalListener(naRef handler, FGNasalSys* nasal, int gcKey)
- : _handler(handler), _gcKey(gcKey), _nas(nasal) {}
-
- void valueChanged(SGPropertyNode* node) {
- _nas->_cmdArg = node;
- naCall(_nas->_context, _handler, 0, 0, naNil(), naNil());
- if(naGetError(_nas->_context))
- _nas->logError();
- }
+ FGNasalListener(SGPropertyNode* node, naRef code, FGNasalSys* nasal,
+ int key, int id, int type);
+
+ virtual ~FGNasalListener();
+ virtual void valueChanged(SGPropertyNode* node);
+ virtual void childAdded(SGPropertyNode* parent, SGPropertyNode* child);
+ virtual void childRemoved(SGPropertyNode* parent, SGPropertyNode* child);
private:
+ bool changed(SGPropertyNode* node);
+ void call(SGPropertyNode* which, naRef mode);
+
friend class FGNasalSys;
- naRef _handler;
+ SGPropertyNode_ptr _node;
+ naRef _code;
int _gcKey;
+ int _id;
FGNasalSys* _nas;
+ int _type;
+ unsigned int _active;
+ bool _dead;
+ bool _first_call;
+ long _last_int;
+ double _last_float;
+ string _last_string;
+};
+
+
+class FGNasalModelData : public simgear::SGModelData {
+public:
+ FGNasalModelData(SGPropertyNode *root = 0) : _root(root), _unload(0) {}
+ ~FGNasalModelData();
+ void modelLoaded(const string& path, SGPropertyNode *prop, osg::Node *);
+
+private:
+ string _module;
+ SGPropertyNode_ptr _root;
+ SGConstPropertyNode_ptr _unload;
+};
+
+
+class NasalXMLVisitor : public XMLVisitor {
+public:
+ NasalXMLVisitor(naContext c, int argc, naRef* args);
+ virtual ~NasalXMLVisitor() { naFreeContext(_c); }
+
+ virtual void startElement(const char* tag, const XMLAttributes& a);
+ virtual void endElement(const char* tag);
+ virtual void data(const char* str, int len);
+ virtual void pi(const char* target, const char* data);
+
+private:
+ void call(naRef func, int num, naRef a = naNil(), naRef b = naNil());
+ naRef make_string(const char* s, int n = -1);
+
+ naContext _c;
+ naRef _start_element, _end_element, _data, _pi;
};
#endif // __NASALSYS_HXX