#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 KD_TREE_API __declspec(dllexport)  // _WIN32
#else
#define KD_TREE_API __declspec(dllimport)
#endif
#else
#define KD_TREE_API
#endif 

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


struct KD_TREE_API point{
	double x[3];
	int id;
	point();
};

extern bool KD_TREE_API cmp0(const point& a, const point& b);
extern bool KD_TREE_API cmp1(const point& a, const point& b);
extern bool KD_TREE_API cmp2(const point& a, const point& b);


struct KD_TREE_API node{
	double dis;
	int id;
	bool operator < (node b)const ;
	node();
	node(int id1,double dis1);
};

struct KD_TREE_API tree{
	point p;
	double mx[3],mn[3];
	int ls,rs,id;
	tree();
};

struct KD_TREE_API KDtree{
	int n,tot,root;
	double X,Y,Z;
	
	priority_queue<node> q;
	vector<int> vec;

	
	point p[MAXPointNum];
	tree t[MAXPointNum];

	KDtree();

	double dis(tree& x);

	double mndis(tree& x);

	void update(int x);

	void query(int x);

	void queryd(int x,double d);

	void add(P& s);

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

	void build();

	vector<int> search_by_k(P& s, int k);

	//返回距离s点d以内的所有点的编号
	vector<int> search_by_dis(P& s, double d);

};