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