hittableList.h

/*
 * Copyright (c) 2023~Now Margoo
 *
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/**
 * \file HittableList.h
 * \brief 一个 Hittable 类的列表
 */

#pragma once

#include <hittable.h>

#include <memory>
#include <vector>

class HittableList : public Hittable {
public:
	HittableList() = default;
	explicit HittableList(const std::shared_ptr<Hittable>& Object) {
		Add(Object);
	}

public:
	void Clear() {
		Objects.clear();
	}
	void Add(const std::shared_ptr<Hittable>& Object) {
		Objects.push_back(Object);
	}
	bool Hit(const Ray& Light, const Interval& RayRange, HitRecord& Record) const override {
		HitRecord Temp;
		auto	  HitFlag = false;
		auto	  Closet  = RayRange.Maximum;

		for (const auto& Object : Objects) {
			if (Object->Hit(Light, Interval(RayRange.Minimum, Closet), Temp)) {
				HitFlag = true;
				Closet	= Temp.TValue;
				Record	= Temp;
			}
		}

		return HitFlag;
	}

public:
	std::vector<std::shared_ptr<Hittable>> Objects;
};