41 lines
964 B
C
41 lines
964 B
C
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#pragma once
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#include "hittable.h"
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#include <memory>
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#include <vector>
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class hittable_list : public hittable
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{
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public:
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hittable_list() {}
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hittable_list(std::shared_ptr<hittable> object) { add(object); }
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void clear() { objects_.clear(); }
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void add (std::shared_ptr<hittable> object) { objects_.push_back(object); }
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virtual bool hit(const ray& r, double t_min, double t_max,hit_record& rec) const;
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private:
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std::vector<std::shared_ptr<hittable>> objects_;
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};
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bool hittable_list::hit(const ray& r, double t_min, double t_max, hit_record& rec) const
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{
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hit_record temp_rec;
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bool hit_anything = false;
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auto closest_so_far = t_max;
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for (const auto& object : objects_)
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{
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if (object->hit(r, t_min, closest_so_far, temp_rec))
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{
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hit_anything = true;
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closest_so_far = temp_rec.t;
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rec = temp_rec;
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}
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}
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return hit_anything;
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}
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