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// -*- C++ -*-
/*
* Simple MultimEdia LiTerator(SMELT)
* by Chris Xiong 2015
* Path/Curve header & implementation
*
* WARNING: This library is in development and interfaces would be very
* unstable.
*
*/
#ifndef SMPATH_H
#define SMPATH_H
#include "smmath.hpp"
class smPathBase
{
public:
virtual smvec2d getPointOnPath(double rt){return smvec2d(0,0);}
virtual double getPathLength()//default lowres length calculator
{
double ret=0;
for(int i=0;i<63;++i)
ret+=(getPointOnPath(i/64.)-getPointOnPath((i+1)/64.)).l();
return ret;
}
virtual ~smPathBase(){}
};
class smPathSegment:public smPathBase
{
private:
smvec2d a,b;
public:
smPathSegment(smvec2d _a,smvec2d _b);
smvec2d getPointOnPath(double rt)override;
double getPathLength()override;
};
class smPathCircular:public smPathBase
{
private:
smvec2d ctr;
double a,b,r;
public:
smPathCircular(smvec2d _ctr,double _a,double _b,double _r);
smvec2d getPointOnPath(double rt)override;
double getPathLength()override;
};
class smPathCollection
{
private:
smPathBase* paths[16];
int cpaths;
public:
int pushPath(smPathBase *p);
smPathBase* getPath(int pid);
smvec2d getPointOnCollection(double rt);
};
#endif
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