/
hittable_list.h
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/
hittable_list.h
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#ifndef HITTABLE_LIST_H
#define HITTABLE_LIST_H
#include "hittable.h"
#include<memory>
#include<vector>
using std::shared_ptr;
using std::make_shared;
class hittable_list : public hittable{
public:
hittable_list(){}
hittable_list(shared_ptr<hittable> object) { add(object); };
void clear() { objects.clear(); };
void add(shared_ptr<hittable> object){ objects.push_back(object);}
virtual bool hit (const ray& r, double t_min, double t_max, hit_record& rec) const override;
public:
std::vector<shared_ptr<hittable> > objects;
};
bool hittable_list::hit(const ray &r, double t_min, double t_max, hit_record &rec) const{
hit_record temp_rec;
bool hit_anything = false;
auto closest_so_far = t_max;
for (const auto& object: objects){
if (object->hit(r, t_min, closest_so_far, temp_rec)){
hit_anything = true;
closest_so_far = temp_rec.t;
rec = temp_rec;
}
}
return hit_anything;
}
#endif // HITTABLE_LIST_H