source/game/director.h

   1 #ifndef MSP_GAME_DIRECTOR_H_
   2 #define MSP_GAME_DIRECTOR_H_
   3
   4 #include <memory>
   5 #include <vector>
   6 #include <msp/time/timedelta.h>
   7 #include <msp/time/timestamp.h>
   8 #include "eventbus.h"
   9 #include "events.h"
  10 #include "eventsource.h"
  11
  12 namespace Msp::Game {
  13
  14 class Stage;
  15
  16 class Director
  17 {
  18 public:
  19         using EventSource = Game::EventSource<Events::StageCreated, Events::StageActivated, Events::StageDeactivated>;
  20
  21 private:
  22         EventBus event_bus;
  23         EventSource event_source;
  24         std::vector<std::unique_ptr<Stage>> stages;
  25         Stage *active_stage = nullptr;
  26         Time::TimeStamp last_tick;
  27         Time::TimeDelta stepsize = Time::sec/60;
  28         Time::TimeDelta backlog;
  29         unsigned max_steps_per_frame = 5;
  30         unsigned max_backlog_steps = 600;
  31
  32 public:
  33         Director();
  34
  35         EventBus &get_event_bus() { return event_bus; }
  36         EventSource &get_event_source() { return event_source; }
  37         const std::vector<std::unique_ptr<Stage>> &get_stages() const { return stages; }
  38
  39         Stage &create_stage();
  40         void activate_stage(Stage &);
  41         Stage *get_active_stage() const { return active_stage; }
  42
  43         void tick();
  44 };
  45
  46 } // namespace Msp::Game
  47
  48 #endif