source/gameview/playerinput.h

   1 #ifndef MSP_GAMEVIEW_PLAYERINPUT_H_
   2 #define MSP_GAMEVIEW_PLAYERINPUT_H_
   3
   4 #include <memory>
   5 #include <msp/input/bindings.h>
   6 #include <msp/input/controlscheme.h>
   7 #include <msp/input/hub.h>
   8 #include <msp/input/keyboard.h>
   9 #include <msp/input/mouse.h>
  10 #include <msp/game/director.h>
  11 #include "events.h"
  12
  13 namespace Msp::GameView {
  14
  15 class PlayerInput: public NonCopyable
  16 {
  17 public:
  18         using EventSource = Game::EventSource<Events::PlayerArrived, Events::PlayerDeparted>;
  19
  20         enum Mode
  21         {
  22                 ONE_LOCAL_PLAYER,
  23                 LOCAL_MULTIPLAYER
  24         };
  25
  26 private:
  27         struct Player
  28         {
  29                 Input::Device *device = nullptr;
  30                 std::unique_ptr<Input::ControlScheme> controls = nullptr;
  31         };
  32
  33         using SchemeFactoryFunc = std::unique_ptr<Input::ControlScheme>();
  34
  35         EventSource event_source;
  36         Input::Keyboard keyboard;
  37         Input::Mouse mouse;
  38         Input::Hub kbm_hub;
  39         std::vector<Input::Bindings *> bindings;
  40         SchemeFactoryFunc *scheme_factory = nullptr;
  41         std::vector<Player> players;
  42         Mode mode = ONE_LOCAL_PLAYER;
  43
  44 public:
  45         PlayerInput(Game::Director &, Graphics::Window &);
  46
  47         template<typename T>
  48                 requires std::is_base_of_v<Input::ControlScheme, T>
  49         void set_control_scheme_type(Mode = ONE_LOCAL_PLAYER);
  50
  51 private:
  52         void init_players();
  53         void add_player(Input::Device &);
  54
  55 public:
  56         void synthesize_initial_events(Game::EventObserver &);
  57 };
  58
  59
  60 template<typename T>
  61         requires std::is_base_of_v<Input::ControlScheme, T>
  62 void PlayerInput::set_control_scheme_type(Mode m)
  63 {
  64         if(scheme_factory)
  65                 throw std::logic_error("scheme type already set");
  66
  67         mode = m;
  68         scheme_factory = +[]() -> std::unique_ptr<Input::ControlScheme> { return std::make_unique<T>(); };
  69         init_players();
  70 }
  71
  72 } // namespace Msp::GameView
  73
  74 #endif