41 lines
964 B
C++
41 lines
964 B
C++
#pragma once
|
|
|
|
#include "hittable.h"
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
class hittable_list : public hittable
|
|
{
|
|
public:
|
|
hittable_list() {}
|
|
hittable_list(std::shared_ptr<hittable> object) { add(object); }
|
|
|
|
void clear() { objects_.clear(); }
|
|
void add (std::shared_ptr<hittable> object) { objects_.push_back(object); }
|
|
|
|
virtual bool hit(const ray& r, double t_min, double t_max,hit_record& rec) const;
|
|
|
|
private:
|
|
std::vector<std::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;
|
|
}
|