FsaHelper.H

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#ifndef FSAHELPER_H
#define FSAHELPER_H

#include "IS3DCommon.H"
#include "Event.H"

namespace IS3D {

typedef ReferenceCountedPointer<class FsaArc> FsaArcRef;
class FsaArc : public ReferenceCountedObject
{
public:
  FsaArc(const std::string &arcName, 
     const int &toState, 
     const Array<std::string> &triggerEvents);
  FsaArc();  
  virtual ~FsaArc();

  void addCallback(EventCallbackFunctor *f);
  void callCallbacks(EventRef event);

  std::string getName()         const { return _name; }
  int         getTo()           const { return _to; }
  int         getNumTriggers()  const { return _triggers.size(); }
  std::string getTrigger(int i) const { return _triggers[i]; }

protected:
  Array<EventCallbackFunctor*> _callbacks;
  Array<std::string>           _triggers;
  std::string                  _name;
  int                          _to;
};


class FsaState
{
public:
  FsaState(const std::string &stateName);  
  FsaState();  
  virtual ~FsaState();
  
  void addArcRef(FsaArcRef a);

  void addEnterCallback(EventCallbackFunctor *f);
  void addExitCallback(EventCallbackFunctor *f);
  
  void callEnterCallbacks();
  void callExitCallbacks();

  FsaArcRef   getArcRef(int i)       { return _arcs[i]; }
  int         getNumArcs()     const { return _arcs.size(); }
  std::string getName()        const { return _name; }

protected:
  std::string      _name;
  Array<FsaArcRef> _arcs;
  Array<EventCallbackFunctor*>  _enterCallbacks;
  Array<EventCallbackFunctor*>  _exitCallbacks;
};


} // end namespace

#endif

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