1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/common/curves.h	Thu Oct 23 01:46:07 2014 +0300
     1.3 @@ -0,0 +1,50 @@
     1.4 +#ifndef _CURVES_H_
     1.5 +#define _CURVES_H_
     1.6 +
     1.7 +#include <string>
     1.8 +#include "n3dmath.h"
     1.9 +#include "linkedlist.h"
    1.10 +
    1.11 +class Curve {
    1.12 +protected:
    1.13 +	LinkedList<Vector3> ControlPoints;
    1.14 +	Vector2 *Samples;	// used for parametrizing by arc length
    1.15 +	int SampleCount;
    1.16 +	bool ArcParametrize;
    1.17 +
    1.18 +	Curve *ease_curve;	// ease in/out curve (1D, x&z discarded)
    1.19 +	int ease_sample_count, ease_step;
    1.20 +	
    1.21 +	void SampleArcLengths();
    1.22 +	float Parametrize(float t);
    1.23 +	float Ease(float t);
    1.24 +
    1.25 +public:
    1.26 +	std::string name;
    1.27 +
    1.28 +	Curve();
    1.29 +	~Curve();
    1.30 +	virtual void AddControlPoint(const Vector3 &cp);
    1.31 +
    1.32 +	virtual int GetSegmentCount() const = 0;
    1.33 +	virtual void SetArcParametrization(bool state);
    1.34 +	virtual void SetEaseCurve(Curve *curve);
    1.35 +	virtual void SetEaseSampleCount(int count);
    1.36 +
    1.37 +	virtual Vector3 Interpolate(float t) = 0;
    1.38 +};
    1.39 +
    1.40 +class BSpline : public Curve {
    1.41 +public:
    1.42 +	virtual int GetSegmentCount() const;
    1.43 +	virtual Vector3 Interpolate(float t);	
    1.44 +};
    1.45 +
    1.46 +class CatmullRomSpline : public Curve {
    1.47 +public:
    1.48 +	virtual int GetSegmentCount() const;
    1.49 +	virtual Vector3 Interpolate(float t);
    1.50 +};
    1.51 +
    1.52 +
    1.53 +#endif	// _CURVES_H_
    1.54 \ No newline at end of file