15.2 Menu

The code above also mentions another state: ‘stateMenu’:

 
   if(StateActive.time()>3 || Kb.bp(KB_ESC)) { 
      StateMenu.set(1.0); 
   }
 

In other words: we will wait 3 seconds in this state, or until the user presses escape. At that time, another application state will become active, with a crossfade of 1 second between them. The menu state could be something like this:

Deze nieuwe state zou er zo kunnen uitzien:

 
bool InitMenu() {return true;} 
void ShutMenu() {} 
 
bool UpdateMenu() 
5{ 
   if(Kb.bp(KB_ESC))return false; 
   if(Kb.bp(KB_ENTER))StateGame.set(0.5); 
   return true; 
} 
10 
void DrawMenu() 
{ 
   D.clear(GREY); 
   D.text (0,  0  , ”Menu”); 
15   D.text (0, -0.3, ”Press Enter to start the game”); 
   D.text (0, -0.5, ”Press Escape to exit”); 
} 
 
State StateMenu(UpdateMenu, DrawMenu, InitMenu, ShutMenu);
 
20

This state is very similar to the previous one. But this time we can use the Enter key to enter the actual game.