#pragma once

#ifdef _WIN32
#ifdef WIREROUTINGDLL_EXPORTS // VisualStudio DLL 项目模板会将 <PROJECTNAME>_EXPORTS 添加到定义预处理器宏。
#define BVH_API __declspec(dllexport)  // _WIN32
#else
#define BVH_API __declspec(dllimport)
#endif
#else
#define BVH_API
#endif 

#include"ReadXML.h"
#include<cmath>
#include<vector>
#include<queue>
#include<map>
#include<iostream>
#include<fstream>
#include<sstream>
using namespace std;


extern bool BVH_API PointInTri(Point3& P, Point3& P0, Point3& P1, Point3& P2);

struct BVH_API Triangle{
	P p[3];


	void getbox(P& _min, P& _max);
	void print();
};

extern bool BVH_API cmpt0(const Triangle& a, const Triangle& b);
extern bool BVH_API cmpt1(const Triangle& a, const Triangle& b);
extern bool BVH_API cmpt2(const Triangle& a, const Triangle& b);


struct BVH_API O_AABB {
	P _min; 
	P _max; 
	int l,r;


	O_AABB();
	O_AABB(const P& min, const P& max);
	
	bool insig(double x, double a, double b);

	bool inbox(const P& p);

	bool hit(P& p1, P& p2);

};
		


struct BVH_API BVH{
	int trinum,tot,root;
	Triangle tri[MaxSTL];
	O_AABB ab[400010];


	BVH();

	void update(int x);

	void build(int &x,int l,int r,int k);

	bool TriSegIntersection(Point3& P0, Point3& P1, Point3& P2, Point3& A, Point3& B);

	bool TriSegIntersection(Triangle& t, Point3& A, Point3& B);

	bool query(int x,int l,int r,P &A,P &B);

	bool iscollect(P& A, P& B);

	void read_stl(string filename);

};