// File: ex4-12p.cpp � Point class source file

#include <cmath>
#include <iostream>
using namespace std;

#include "ex4-12p.h"
#include "ex4-12l.h"

Point::Point(void)
{
    x = 0.0;
    y = 0.0;
}

Point::Point(double x1, double y1)
{
    x = x1;
    y = y1;
}

Point::Point(const Point& p)
{
    x = p.x;
    y = p.y;
}

Point::Point(const Point& p, const Point& q)
{
    x = (p.x + q.x) / 2.;
    y = (p.y + q.y) / 2.;
}

Point::Point(const Line& l, const Line &m)
{
    if (l.slope() == m.slope()) // parallel or coincident Lines
    {
        x = HUGE_VAL;
        y = HUGE_VAL;
    }
    else {
        x = (m.get_b() * l.get_c() - m.get_c() * l.get_b()) /
            (l.get_b() * m.get_a() - m.get_b() * l.get_a());
        y = (l.get_a() * m.get_c() - m.get_a() * l.get_c()) /
            (l.get_b() * m.get_a() - m.get_b() * l.get_a());
    }
}

void Point::print(void) const
{
    cout << '(' << x << ',' << y << ')';
}

void Point::set_x(double x1)
{
    x = x1;
}

void Point::set_y(double y1)
{
    y = y1;
}

double Point::get_x(void) const
{
    return x;
}

double Point::get_y(void) const
{
    return y;
}

double Point::distance_to_Point(const Point& p) const
{
    return sqrt(square(p.x - x) + square(p.y - y));
}