42 lines
992 B
C++
42 lines
992 B
C++
#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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using std::shared_ptr;
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using std::make_shared;
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class hittable_list : public hittable{
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public:
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hittable_list() {}
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hittable_list(shared_ptr<hittable> object) {objects.push_back(object);}
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void clear(){objects.clear();}
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void add(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 override;
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public:
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std::vector<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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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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if(object->hit(r, t_min,closest_so_far, temp_rec)){
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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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