Improve quit-to-menu menu handling

This stabilizes the code that handles the menu that you land on if you
press Esc and quit to the menu.

Instead of using Game::returnmenu(), we now use the new function
Game::returntomenu() to clearly express intent that we want to return to
a specific menu. So I've added another kludge variable
Game::wasinintermission for the was-in-intermission case.

Also, I made it so that if you didn't have a main game telesave or
quicksave, you just get brought back to the main menu. Because you
shouldn't be able to go to the play menu without a quicksave or
telesave.

desktop_version/src/Game.cpp

@@ -1345,11 +1345,28 @@ void Game::updatestate()
             //or "who do you want to play the level with?"
             //or "do you want cutscenes?"
             //or the confirm-load-quicksave menu
-            if ((!wasintimetrial && !wasincustommode) || currentmenuname == Menu::quickloadlevel)
+            if (wasintimetrial)
             {
-                returnmenu();
+                returntomenu(Menu::timetrials);
+            }
+            else if (wasinintermission)
+            {
+                returntomenu(Menu::intermissionmenu);
+            }
+            else if (wasincustommode)
+            {
+                returntomenu(Menu::levellist);
+            }
+            else if (game.telesummary != "" || game.quicksummary != "")
+            {
+                returntomenu(Menu::play);
+            }
+            else
+            {
+                createmenu(Menu::mainmenu);
             }
             wasintimetrial = false;
+            wasinintermission = false;
             wasincustommode = false;
             state = 0;
             break;

desktop_version/src/Game.h

@@ -236,6 +236,7 @@ public:
 
     //Menu kludge...
     bool wasintimetrial;
+    bool wasinintermission;
     bool wasincustommode;
 
 

desktop_version/src/Input.cpp

@@ -1961,6 +1961,7 @@ void mapinput()
                 FillRect(graphics.tempBuffer, 0x000000);
                 if (game.intimetrial || game.insecretlab || game.nodeathmode) game.menukludge = true;
                 game.wasintimetrial = game.intimetrial;
+                game.wasinintermission = game.inintermission;
                 game.wasincustommode = map.custommode;
                 script.hardreset();
                 if(graphics.setflipmode) graphics.flipmode = true;

desktop_version/src/editor.cpp

@@ -3471,10 +3471,7 @@ void editorlogic()
         map.nexttowercolour();
         ed.settingsmod=false;
         graphics.backgrounddrawn=false;
-        //Do returnmenu twice because we have two menus:
-        //the main editor menu and the confirm save&quit menu
-        game.returnmenu();
-        game.returnmenu();
+        game.returntomenu(Menu::playerworlds);
     }
 }