UtilityFactory.H

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#ifndef UTILITYFACTORY_H
#define UTILITYFACTORY_H

// Gluebase includes
#define OUTSIDE_GLUE_CORE
#include <mlib/points.H>
#include <std/hash.H>
#include <std/strings.H>

#include "Interpolator.H"

namespace InSpace {

#define TWOPI (M_PI*2)

class UTILITYFACTORY{
public:
  static Interpolator* getLinearInterpolator(){
    if (!_interpolator){
      _interpolator=new LinearInterpolator();
    }
    return _interpolator;
  }

  static Wpt_list& getCircle(){
    if (_baseRing.num()==0){
      int nfaces = CONFIGval("TUBE_NFACES",8,false);
      for (double angle=0; angle<TWOPI; angle += TWOPI/(double)nfaces) {
    _baseRing += Wpt(cos(angle),0,sin(angle));
      }
    }
    return _baseRing;
  }
  
  static double* getCircleTexCoord(){
    if (!_texcoord){
      int nfaces = CONFIGval("TUBE_NFACES",8,false);
      _texcoord=new double[nfaces];
      int count=0;
      for (double angle=0; angle<TWOPI; angle += TWOPI/(double)nfaces) {
    _texcoord[count++]=(sin(angle)+1.0)/2.0;
      }
    }
    return _texcoord;
  }
protected:
  static Wpt_list _baseRing;
  static Interpolator *_interpolator;
  static double* _texcoord;
};

}
#endif

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