main.cpp

#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include "check_dot.h"
#include <cmath>
#include "check_error.h"

/*
const double PI = 3.141592653589793;
int point(std::vector<double>& masx, std::vector<double>& masy, double& x, double& y)
{
	double anglesum = 0;
	double eps = 1e-7;
	for (int i = 0; i < masx.size() - 1; ++i)
	{

		double x1 = masx[i];
		double x2 = masx[i + 1];
		double y1 = masy[i];
		double y2 = masy[i + 1];
		double vax = x1 - x;
		double vay = y1 - y;
		double vbx = x2 - x;
		double vby = y2 - y;
		//double vbz = 0;
		//double vaz = 0;
		//std::cout << "y2 = " << y2 << std::endl;
		//std::cout << " point" << vax <<" " <<" "<<vay << " "<<vbx <<" " <<vby;
		//double zcor = 1, ycor = 0, xcor = 0;
		double len_a = std::sqrt(pow(vax, 2) + pow(vay, 2));
		double len_b = std::sqrt(pow(vbx, 2) + pow(vby, 2));
		//std::cout << "len_a" << len_a << std::endl;
		//std::cout << "len_b" << len_b << std::endl;
		double det = (vax * vby - vbx * vay);
		//double det = vax * vby * zcor + vay *vbz  * xcor + vbx * ycor * vaz -
		//vaz* vby* xcor - vbx * vay * zcor - vax * ycor * vbz;
		//std::cout << "det" << det << std::endl;
		double direction = (det >= 0) ? 1 : -1;
		//std::cout << i << ":    " << "len a:" << len_a << "  len b:" << len_b;

		if ((len_a < eps) or (len_b < eps))
		{
			std::cout << i << ":    " << "len a:" << len_a << "  len b:" << len_b;
			return 0;
		}
		double norm = (len_a * len_b);
		//std::cout << "norma" << norm << std::endl;

		double  sk = ((vax * vbx) + (vay * vby));
		//std::cout << "skalayr" << sk << std::endl;

		double cosangle = ((vax * vbx) + (vay * vby)) / (len_a * len_b);
		//std::cout << "cos" << cosangle << std::endl;
		double angle = std::acos(cosangle);
		if (fabs(fabs(angle) - PI) < eps)
		{
			return 1;
		}


		anglesum = anglesum + angle * direction;
		//std::cout << "acos" << angle << std::endl;

	}
	//std::cout << "SUM = " << anglesum << std::endl;
	if (fabs(fabs(anglesum) - 2 * PI) < eps)
	{
		return 2;
	}
}
*/


int processing(int argc, char** argv, std::string& path, double& x, double& y, std::vector <double>& vx, std::vector <double>& vy)
{ 
    auto err_info = check_error(argc, argv, path, vx, vy, x,y );

    if (int(err_info) < 0)
    {
        std::cerr << "Error parsing command line arguments: " << get_error_name(err_info) << std::endl;
        return -1;
    }
    else
    {
        std::cout << "Successfully parsed command line, filename = "
            << path << ", x = " << x << ", y = " << y << std::endl;
    }
    return 0;
}
int main(int argc, char** argv)
{
    std::string path;
    double x, y;
    /*try {
        path = argv[1];
        x = std::stod(argv[2]);
        y = std::stod(argv[3]);
    }
    catch (std::logic_error){
        std::cerr << "Вы не подали достаточно аргументов!" << std::endl;
        return -1;
    }*/

    std::vector <double> vx;
    std::vector <double> vy;
    //std::string x0, y0;
    //std::ifstream f;
    //f.open(path);
    //if (!f.is_open()) // считывания файла
    //{
    //    std::cerr << "error open file" << std::endl;
    //    return -1;
    //}

    //    std::cout << "file open" << std::endl;
    //        try
    //        { 
    //            while (!f.eof())
    //            {
    //                f >> x0 >> y0;
    //                vx.push_back(std::stod(x0));
    //                vy.push_back(std::stod(y0));
    //            }
    //            f.close();
    //        }
    //        catch (std::invalid_argument)
    //        {
    //            std::cerr << "Вы подали неверные точки!" << std::endl;
    //            return -1;
    //        }
    //        vx.push_back(vx[0]);
    //        vy.push_back(vy[0]);

    if (processing(argc, argv, path, x, y, vx, vy) < 0) 
    {
        return -1;
    }
  /*  for (int i = 0; i < vx.size() + 1; i++)
    {
        std::cout << i << " " << vx[i] << std::endl;
        std::cout << i << " " << vy[i] << std::endl;

    }*/

    vx.push_back(vx[0]);
    vy.push_back(vy[0]);


    int res = point(vx, vy, x, y);
    if (res == 0)
    {
        std::cout << "dot at the top" << std::endl;
    }
    else if (res == 1)
    {
         std::cout << "dot on the edge" << std::endl;
    }
    else if (res == 2)
    {
        std::cout << "dot in polygon" << std::endl;
    }
    else
    {
        std::cout << "dot outside the polygon" << std::endl;
    }
        
    return 0;
}