text: #pragma once
  
  class InputSystem;
  class RenderSystem;
  class CollisionSystem;
  class PhysicsSystem;
  class BulletSystem;
  
  class Game
  {
  public:
  	Game(int screenWidth, int screenHeight);
  	void Run();
  	~Game();
  private:
  	void SetUp();
  
  	int screenWidth;
  	int screenHeight;
  	bool quit = false;
  
  	InputSystem* inputSystem;
  	RenderSystem* renderSystem;
  	CollisionSystem* collisionSystem;
  	PhysicsSystem* physicsSystem;
  	BulletSystem* bulletSystem;
  };
  
  