vec3.h

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#pragma once

#include <iostream>
#include <math.h>

namespace fireworks { namespace maths {

    // TODO: Template the vec3 to take any data type and also it's operators
    struct vec3
    {
        float x, y, z;

        vec3();
        vec3(const float& x, const float& y, const float& z);

        static vec3 crossProduct(const vec3& a, const vec3& b);
        static vec3 normalize(const vec3& v);

        vec3& add(const vec3& other);
        vec3& subtract(const vec3& other);
        vec3& mutiply(const vec3& other);
        vec3& divide(const vec3& other);

        /*
         * 'friend' because we are passing the left and right explicitly and not using
         * this pointer we don't want to pass in the this pointer to the function hence
         * we mark them as non-member friend and still give it access to the private members
         */
        friend vec3 operator+(vec3 left, const vec3& right);
        friend vec3 operator-(vec3 left, const vec3& right);
        friend vec3 operator*(vec3 left, const vec3& right);
        friend vec3 operator/(vec3 left, const vec3& right);

        bool operator==(const vec3& other);
        bool operator!=(const vec3& other);

        vec3& operator+=(const vec3& other);
        vec3& operator-=(const vec3& other);
        vec3& operator*=(const vec3& other);
        vec3& operator/=(const vec3& other);

        // TODO: Template these to work with integers as well
        friend vec3 operator+(vec3 left, const float& right);
        friend vec3 operator-(vec3 left, const float& right);
        friend vec3 operator*(vec3 left, const float& right);
        friend vec3 operator/(vec3 left, const float& right);

        friend std::ostream& operator<<(std::ostream& stream, const vec3& vector);
    };

} }