game_manager.hpp

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#pragma once
#include <unordered_map>
#include <vector>
#include <cstdint>
#include <functional>
#include "Game.hpp"
#include "message.hpp"
#include "memory"
 
struct GameInstance {
    uint32_t gameId;
    std::unique_ptr<Game> game;
    std::vector<uint32_t> clients;
};
 
class GameManager {
public:
    using BroadcastFunc = std::function<void(uint32_t, const Message&)>;
 
    explicit GameManager(BroadcastFunc broadcastFunc);
 
    std::forward_list<std::string> syncClientToGame(uint32_t clientId);
 
    uint32_t assignClientToGame(uint32_t clientId);
 
    void removeClientFromGame(uint32_t clientId);
 
    uint32_t getGameIdForClient(uint32_t clientId) const;
 
    void updateAllGames(float dt);
 
    void handleGameMessage(uint32_t gameId, uint32_t clientId, const Message& msg);
 
private:
    uint32_t findOrCreateGame();
 
    // The broadcast function to call: broadcastFunc_(clientId, msg).
    BroadcastFunc broadcastFunc_;
 
    std::unordered_map<uint32_t, GameInstance> games_;
    std::unordered_map<uint32_t, uint32_t> clientToGame_;
    uint32_t nextGameId_ = 1;
 
    static const size_t MAX_PLAYERS_PER_GAME = 4; // Example capacity
};