src/app/Application.h

   1 /*
   2  * Application.h
   3  *
   4  *  Created on: Apr 8, 2012
   5  *      Author: holy
   6  */
   7
   8 #ifndef APP_APPLICATION_H_
   9 #define APP_APPLICATION_H_
  10
  11 #include "Input.h"
  12 #include "Timer.h"
  13 #include "../sdl/InitScreen.h"
  14
  15 #include <stack>
  16 #include <queue>
  17 #include <SDL.h>
  18
  19
  20 namespace app {
  21
  22 class State;
  23
  24 class Application {
  25
  26 public:
  27         Application(sdl::InitScreen *screen, State *initialState);
  28         ~Application();
  29 private:
  30         Application(const Application &);
  31         Application &operator =(const Application &);
  32
  33 public:
  34         void Run();
  35         void Loop();
  36
  37 public:
  38         void ChangeState(State *);
  39         void PushState(State *);
  40         void PopState();
  41         void Quit();
  42         Input &Buttons() { return input; }
  43         const Input &Buttons() const { return input; }
  44         Timers<Uint32> &GlobalTimers() { return globalTimers; }
  45
  46 private:
  47         struct StateCommand {
  48                 enum Type {
  49                         PUSH, POP, CHANGE
  50                 } type;
  51                 State *state;
  52         };
  53
  54 private:
  55         State *CurrentState();
  56         bool StateChangePending() const { return !stateChanges.empty(); }
  57         void UpdateState();
  58         void RealChangeState(State *);
  59         void RealPushState(State *);
  60         void RealPopState();
  61         void PopAllStates();
  62
  63 private:
  64         void HandleEvents();
  65         void UpdateWorld(Uint32 deltaT);
  66         void Render();
  67
  68 private:
  69         sdl::InitScreen *screen;
  70         std::stack<State *> states;
  71         std::queue<StateCommand> stateChanges;
  72         Timers<Uint32> globalTimers;
  73         Input input;
  74         Uint32 last;
  75
  76 };
  77
  78 }
  79
  80 #endif /* APP_APPLICATION_H_ */