diff --git a/src/clara.cpp b/src/clara.cpp
index fe52cc066fc16ebdeb241621d4349f27cca6adf2..809a4312839be84ccecd442845b2d86e0e703a0c 100644
--- a/src/clara.cpp
+++ b/src/clara.cpp
@@ -89,23 +89,23 @@ double dot(Vector a, Vector b) {
 	return a.x * b.x + a.y * b.y;
 }
 
-Vector Ray::get_dir() {
+Vector LightRay::get_dir() {
 	return dir;
 }
 
-Point Ray::get_point() {
+Point LightRay::get_point() {
 	return p;
 }
 
-void Ray::set_dir(Vector v) {
+void LightRay::set_dir(Vector v) {
 	dir = v;
 }
 
-void Ray::set_point(Point pt) {
+void LightRay::set_point(Point pt) {
 	p = pt;
 }
 
-std::optional<Point> Ray::collision_point(Line l) {
+std::optional<Point> LightRay::collision_point(Line l) {
 	Vector dir = get_dir();
 	Point p = get_point();
 
@@ -137,7 +137,7 @@ std::optional<Point> Ray::collision_point(Line l) {
 	return std::nullopt;
 }
 
-void Ray::collide(Object o) {
+void LightRay::collide(Object o) {
 	for (auto it = o.lines_begin(); it != o.lines_end(); it++) {
 		std::optional<Point> collision = collision_point(*it);
 		if (collision != std::nullopt) { // leiti punkt
diff --git a/src/clara.h b/src/clara.h
index 5c569efcd8d6218888a0ec32a27f76879cb3976e..ba4bbfef54f941e735daa0d30e781f67522eb927 100644
--- a/src/clara.h
+++ b/src/clara.h
@@ -7,7 +7,7 @@
 struct Vector;
 struct Point;
 struct Line;
-class Ray;
+class LightRay;
 class Object; // todo
 
 struct Point {
@@ -18,6 +18,8 @@ struct Point {
 	Point(double ix, double iy) : x{ix}, y{iy} {};
 	Point(const Point &p) : x{p.x}, y{p.y} {};
 
+	Point& operator=(const Point&) = default;
+
 	Point operator+(Vector);
 };
 
@@ -49,7 +51,7 @@ struct Vector {
 };
 double dot(Vector, Vector);
 
-class Ray {
+class LightRay {
 	private:
 	Point p;
 	Vector dir;
@@ -57,7 +59,7 @@ class Ray {
 	double refraction_index;
 
 	public:
-	Ray(Point ip, Vector idir, double iwavelength) : p{ip}, dir{idir}, wavelength{iwavelength} {};
+	LightRay(Point ip, Vector idir, double iwavelength) : p{ip}, dir{idir}, wavelength{iwavelength} {};
 	Vector get_dir();
 	Point get_point();
 	void set_dir(Vector);
diff --git a/src/main.cpp b/src/main.cpp
index 2c220607efdc23bf6321663e5b6f63fccfe88d87..ede9a8d85ff7bca68dedc7ad1bfd20b2c683b878 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,7 +1,7 @@
 #include <iostream>
+#include <cassert>
 
 #include "clara.h"
-#include <cassert>
 
 int main() {
 	Point p1{};