cppPointFriendQuadrantDistance

#include <iostream>

enum Quadrants { ZeroPoint, First, Second, Third, Fourth, XPositive, XNegative, YPositive, YNegative };

class Point
{
    int x;
    int y;
public:
    Point() = default;
    Point(int pX, int pY) : x{ pX }, y{ pY } {}
    Point& setX(int pX) { x = pX; return *this; }
    Point& setY(int pY) { y = pY; return *this; }
    int getX()const { return x; }
    int getY()const { return y; }
    void show() const
    {
        std::cout << '(' << x << ',' << y << ')';
    }
    friend double distance(const Point& p1, const Point& p2);
    friend int quadrant(const Point& p)
    {
        if ((!p.y and !p.x)) { return Quadrants::ZeroPoint; }
        if (!p.y) { return p.x > 0 ? Quadrants::XPositive : Quadrants::XNegative; }
        if (!p.x) { return p.y > 0 ? Quadrants::YPositive : Quadrants::YNegative; }
        if (p.y > 0)
        {
            return p.x > 0 ? Quadrants::First : Quadrants::Second;
        }
        return p.x > 0 ? Quadrants::Fourth : Quadrants::Third;
    }
};

double distance(const Point& p1, const Point& p2)
{
    auto xLength{ p2.x - p1.x };
    auto yLength{ p2.y - p1.y };
    return sqrt(xLength * xLength + yLength * yLength);
}

void quadrantDecode(int quadrant)
{
    if (quadrant == Quadrants::ZeroPoint) { std::cout << "Zero point"; }
    else if (quadrant == Quadrants::First) { std::cout << "First quadrant"; }
    else if (quadrant == Quadrants::Second) { std::cout << "Second quadrant"; }
    else if (quadrant == Quadrants::Third) { std::cout << "Third quadrant"; }
    else if (quadrant == Quadrants::Fourth) { std::cout << "Fourth quadrant"; }
    else if (quadrant == Quadrants::XPositive) { std::cout << "X axis positive"; }
    else if (quadrant == Quadrants::XNegative) { std::cout << "X axis negative"; }
    else if (quadrant == Quadrants::YPositive) { std::cout << "Y axis positive"; }
    else if (quadrant == Quadrants::YNegative) { std::cout << "Y axis negative"; }
}

int main()
{
    Point p1{ 5,5 };
    Point p2{ 10,10 };

    std::cout << "Distance between p1 and p2 is: " << distance(p1, p2) << '\n';

    const int testCases{ 9 };
    Point points[testCases]{
        {0,0},
        {1,1},
        {-1,1},
        {-1,-1},
        {1,-1},
        {1,0},
        {-1,0},
        {0,1},
        {0,-1}
    };

    for (int i{ 0 }; i < testCases; ++i)
    {
        points[i].show();
        std::cout << ' ';
        quadrantDecode(quadrant(points[i]));
        std::cout << '\n';
    }

    return 0;
}