SFML Game Development By Example

Incorporating the state manager

While it's not quite time for fanfare, excitement is definitely in order because we can finally put our brand new StateManager class to work! The Game class header modification is a good start:

...
#include "StateManager.h"
...
class Game{
public:
    ...
    void LateUpdate();
private:
    ...
    StateManager m_stateManager;
};

Sticking a new data member to the Game class and adding a new method for late updating are all the adjustments that need to be made in the header. Let's adjust the Game constructor to initialize the state manager:

Game::Game(): m_window("Chapter 5", sf::Vector2u(800, 600)), m_stateManager(&m_context) { ... m_context.m_wind = &m_window; m_context.m_eventManager = m_window.GetEventManager(); m_stateManager.SwitchTo(StateType::Intro); ...