#pragma once
#include "./Curve.hpp"

enum class NURBSType {
	BASIC,
	CLAMPED,
	CYCLIC
};

class NURBS : public Curve {
private:
	unsigned int order;
	vector<float>* weights;
	vector<unsigned int>* multiplicities;
	vector<float>* derivativeBoundaries;
	vector<glm::vec3>* derivativePoints;
	vector<float>* derivativeWeghts;
	glm::vec3 deBoor( float at, int index);
	void preliminaryChecks();
public:
	NURBS( unsigned int order, vector<glm::vec3>* points, vector<float>* weights, vector<float>* boundaries, vector<unsigned int>* multiplicities);
	unsigned int getOrder();
	vector<float>* getWeights();
	glm::vec3 evaluate(float at);
	glm::vec3 derivate(float at);
	float getLeftBound();
	float getRightBound();
};