moved velocityInDirection() to util.h/.cpp

include/util.h

@@ -1,6 +1,8 @@
 #pragma once
 
 #include <SFML/Graphics.hpp>
+#include <cmath>
 
 
 sf::Vector2f getOverlap(const sf::FloatRect first, const sf::FloatRect second);
+sf::Vector2f velocityInDirection(const float speed_in, const sf::Angle angle_in);

src/Game.cpp

@@ -3,14 +3,9 @@
 #include <iostream>
 #include <thread>
 #include <chrono>
-#include <cmath>
 
 #include "util.h"
 
-sf::Vector2f velocityInDirection(const float speed_in, const sf::Angle angle_in)
-{
-    return sf::Vector2f{speed_in * std::cos(angle_in.asRadians()), speed_in * std::sin(angle_in.asRadians())};
-}
 
 void Game::init()
 {

src/util.cpp

@@ -10,3 +10,8 @@ sf::Vector2f getOverlap(const sf::FloatRect first, const sf::FloatRect second)
     const float resultY = (first.size.y + second.size.y) - deltaY;
     return {resultX, resultY};
 }
+
+sf::Vector2f velocityInDirection(const float speed_in, const sf::Angle angle_in)
+{
+    return sf::Vector2f{speed_in * std::cos(angle_in.asRadians()), speed_in * std::sin(angle_in.asRadians())};
+}