replaced hooks_startmenu and hooks_mainmenu with a general hooks_display_dialog

dialogs.cpp

@@ -371,7 +371,10 @@ EX namespace dialog {
     valuex = dcenter - fwidth / 2 + leftwidth + innerwidth + dfsize/2;
     }
 
+  EX purehookset hooks_display_dialog;
+  
   EX void display() {
+    callhooks(hooks_display_dialog);
     int N = items.size();
     dfsize = vid.fsize;
     #if ISMOBILE || ISPANDORA

graph.cpp

@@ -7772,8 +7772,15 @@ EX vector< function<void()> > screens = { normalscreen };
 template<class T> void pushScreen(const T& x) { screens.push_back(x); } 
 inline void popScreen() { if(isize(screens)>1) screens.pop_back(); }
 inline void popScreenAll() { while(isize(screens)>1) popScreen(); }
+typedef void (*cfunction)();
 #endif
 
+EX cfunction current_screen_cfunction() {
+  auto tgt = screens.back().target<cfunction>();
+  if(!tgt) return nullptr;
+  return *tgt;
+  }
+
 #if HDR
 namespace sm {
   static const int NORMAL = 1;

hyper_function.h

@@ -59,6 +59,12 @@ public:
     explicit operator bool() const noexcept {
         return ptr_ != nullptr;
     }
+
+    template<class T> T* target() { 
+      auto ptr = dynamic_cast<function_state<T, R, Args...>*> (ptr_);
+      if(!ptr) return nullptr;
+      return &ptr->t_;
+      }
 };
 
 } // namespace hr

menus.cpp

@@ -206,8 +206,6 @@ EX void showOverview() {
 
 // -- main menu --
 
-EX purehookset hooks_mainmenu;
-
 EX void showMainMenu() {
   gamescreen(2);
 
@@ -259,8 +257,6 @@ EX void showMainMenu() {
   dialog::addItem("SHARE", 's'-96);
 #endif
 
-  callhooks(hooks_mainmenu);
-  
   if(!canmove) q = "review the scene";
   else if(turncount > 0) q = "continue game";
   else q = "play the game!";
@@ -643,8 +639,6 @@ EX bool showHalloween() {
 
 int daily_mode;
 
-EX purehookset hooks_startmenu;
-
 EX void showStartMenu() {
   if(!daily_mode) {
     daily_mode = hrand(10) + 1;
@@ -743,8 +737,6 @@ EX void showStartMenu() {
       break;
     }
 
-  callhooks(hooks_startmenu);
-
   if(have_current_settings()) {
     dialog::addBreak(100);
     dialog::addBigItem(XLAT1("use current/saved settings"), SDLK_ESCAPE);