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ViewpointNav.H

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#ifndef VIEWPOINTNAV_H
#define VIEWPOINTNAV_H

#include "WorldTranslate.H"

// Gluebase includes
#define OUTSIDE_GLUE_CORE
#include <fsa/fsa.H>
#include <mlib/points.H>
#include <dev/room6d.H>
#include <dev/buttons.H>
#include <config/config.H>
#include <std/list.H>

class ViewpointNav :  public Interactor<ViewpointNav>
{
public:
  ViewpointNav() : Interactor<ViewpointNav>("ViewpointNav") {

    int numviews = CONFIGval("NUM_STORED_VIEWPOINTS",0);
    for (int i=0;i<numviews;i++) {
      _views += CONFIGval(str_ptr("STORED_VIEWPOINT_") + i, Wtransf());
    }

    _cviewbtn = new EVENTbtn(CONFIGval("CYCLE_VIEW_BTN"),true);
    _entry += Arc(this, Gd(_cviewbtn), &ViewpointNav::cycle_view);
    EVENTmgr::add_handler(new FSA(&_entry));
  }
  virtual ~ViewpointNav() {}

  void addView(Wtransf m) { _views += m; }

  int  numViews() { return _views.num(); }
  void setView(int i) {
    if (!_views.num()) {
      cerr << "Error: no stored viewpoints." << endl;
      return;
    }

    _curview = i;
    if (_curview >= _views.num())
      _curview = 0;
    WorldTranslate::instance()->setROOM_TO_WORLD(_views[_curview]);
    cout << "Setting viewpoint #" << _curview << endl;
  }

protected:

  void cycle_view(cEVENTbtnptr &evt, STATE *&) {
    setView(_curview + 1);
  }

  EVENTbtnptr _cviewbtn;

  int _curview;
  ARRAY<Wtransf> _views;

};

#endif

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