path: root/src/Vector.hpp

#pragma once

#include <ostream>
#include <cmath>

#include <glm/vec3.hpp>

template<class T>
struct Vector3 {
	T x, y, z;

	Vector3(T X = 0, T Y = 0, T Z = 0) : x(X), y(Y), z(Z) {}

	Vector3(const Vector3 &rhs) : x(rhs.x), y(rhs.y), z(rhs.z) {}

	~Vector3() = default;

	double GetLength() const { return std::sqrt(std::pow(x, 2) + std::pow(y, 2) + std::pow(z, 2)); }

	operator glm::vec3() const {
		return glm::vec3(x, y, z);
	}

    glm::vec3 glm() const {
        return (glm::vec3)(*this);
    }

	void swap(Vector3 &rhs) noexcept {
		std::swap(x, rhs.x);
		std::swap(y, rhs.y);
		std::swap(z, rhs.z);
	}

	T dot(const Vector3 &rhs) const {
		return x*rhs.x + y*rhs.y + z*rhs.z;
	}

	double cosBetween(const Vector3<T> &rhs) const {
		return dot(rhs) / GetLength() / rhs.GetLength();
	}

	Vector3<double> normalize() {
		auto length = GetLength();

		return Vector3<double> (
				x / length,
				y / length,
				z / length
		);
	}

	Vector3 &operator=(Vector3 rhs) noexcept {
		rhs.swap(*this);
		return *this;
	}

	Vector3 operator*(T rhs) const {
		return Vector3<T>(
				x * rhs,
				y * rhs,
				z * rhs
		);
	}

	Vector3 operator/(T rhs) const {
		return Vector3<T>(
				x / rhs,
				y / rhs,
				z / rhs
		);
	}

	Vector3 operator+(const Vector3 &rhs) const {
		return Vector3<T>(
				x + rhs.x,
				y + rhs.y,
				z + rhs.z
		);
	}

	Vector3 operator-(const Vector3 &rhs) const {
		return Vector3<T>(
				x - rhs.x,
				y - rhs.y,
				z - rhs.z
		);
	}

	Vector3 operator-() const {
		return Vector3<T> (
				-x,
				-y,
				-z
		);
	}

	Vector3 operator*(const Vector3 &rhs) const {
		return Vector3<T>(
				x * rhs.x,
				y * rhs.y,
				z * rhs.z
		);
	}

	Vector3 operator/(const Vector3 &rhs) const {
		return Vector3<T>(
				x / rhs.x,
				y / rhs.y,
				z / rhs.z
		);
	}

	bool operator==(const Vector3 &rhs) const {
		return (x == rhs.x && y == rhs.y && z == rhs.z);
	}

	bool operator!=(const Vector3 &rhs) const {
		return !(*this == rhs);
	}

	bool operator<(const Vector3 &rhs) const {
		if (x < rhs.x)
			return true;
		if (rhs.x < x)
			return false;
		if (y < rhs.y)
			return true;
		if (rhs.y < y)
			return false;
		return z < rhs.z;
	}


	friend std::ostream &operator<<(std::ostream &os, const Vector3 &vector3) {
		os << vector3.x << ", " << vector3.y << ", " << vector3.z;
		return os;
	}
};

using VectorF = Vector3<double>;
using Vector = Vector3<signed long long>;