#include "simple-classes.hpp"

#include <iostream>


// implementation for the default constructor
// math::vec3i::vec3i() {
//     x = 0;
//     y = 0;
//     z = 0;
// }

// here is a modern implementation that 
// uses a C++11 feature called `member initializers'
math::vec3i::vec3i() : x(0), y(0), z(0) {
    // does nothing special
}

// implementation for the copy constructor, that
// copies the other object
math::vec3i::vec3i(const math::vec3i& other) {
    // in this case we copy only the components
    x = other.x;
    y = other.y;
    z = other.z;
}

// impl for a custom constructor
math::vec3i::vec3i(int x_, int y_, int z_) {
    x = x_;
    y = y_;
    z = z_;
}


void math::vec3i::zero() {
    x = 0;
    y = 0;
    z = 0;
}

int math::vec3i::dot(const vec3i& other) const {
    return x * other.x + y * other.y + z * other.z;
}


int main(int argc, char *argv[]) {
    
    // a vector with zeroes
    math::vec3i v;
    // a copy of v
    const math::vec3i u(v);
    // a vector initialized 
    math::vec3i w(1, 2, 3);

    std::cout << u.dot(w) << std::endl;

    return 0;
}