#include <vector>
#include <cmath>
#include "lin_alg.h"
#include "entity.h"
#include "color.h"
#include "light.h"

struct IntersectInfo
{
	double param_t;
	vector3d pt;
	vector3d norm;
	Color col;
	Entity * E;
};

class world_objects
{
public:
	std::vector<Entity*> objects;
	std::vector<Light> lights;
	void Insert(Entity*E) {objects.push_back(E);}
	void PathCompress();
	IntersectInfo CalcRayIntersect(Ray ray);
	int IntersectionTest(Ray ray);
};