// point class implementation

#include <iostream>
#include <sstream>
#include <cmath>
#include "point.h"

using namespace std;

point::point(int init_x, int init_y) {
    set_location(init_x, init_y);
    // the following line of code would not normally be included in a
    // constructor, but it allowed us to see what point objects were being
    // constructed
    cout << "constructing " << to_string() << endl;
}

string point::to_string() const {
    ostringstream out;
    out << "(" << x << ", " << y << ")";
    return out.str();
}

void point::translate(int dx, int dy) {
    x += dx;
    y += dy;
}

double point::distance_from_origin() const {
    return sqrt(x * x + y * y);
}

int point::get_x() const {
    return x;
}

int point::get_y() const {
    return y;
}

void point::set_location(int newX, int newY) {
    x = newX;
    y = newY;
}

ostream & operator<<(ostream & out, const point & p) {
    out << p.to_string();
    return out;
}

bool operator<(const point & lhs, const point & rhs) {
    return lhs.distance_from_origin() < rhs.distance_from_origin();
}