Show classic puzzles button in menu after player has opened it from community site

src/main.cc

@@ -930,16 +930,10 @@ tproject_step(void)
                     G->state.modified = true;
                 } break;
 
-                case ACTION_MAIN_MENU_PKG: {
-                    int type = VOID_TO_INT(data);
-                    if (type == 0) {
-                        P.s_menu_pkg->set_pkg(LEVEL_MAIN, 7);
-                    } else {
-                        P.s_menu_pkg->set_pkg(LEVEL_MAIN, 9);
-                    }
-
+                case ACTION_MAIN_MENU_PKG:
+                    P.s_menu_pkg->set_pkg(LEVEL_MAIN, 7);
                     tms::set_screen(P.s_menu_pkg);
-                } break;
+                    break;
 
                 case ACTION_SET_MODE:
                     G->set_mode(VOID_TO_INT(data));

src/menu-play.cc

@@ -7,6 +7,7 @@
 #include "widget_manager.hh"
 #include "text.hh"
 #include "game-message.hh"
+#include "settings.hh"
 
 #define MAX_X 8.f
 #define MIN_X -8.f
@@ -68,7 +69,7 @@ menu_play::menu_play()
     this->wdg_browse_community->add();
 
     this->wdg_browse_community->resize_percentage(
-            _tms.window_width,  0.45,
+            _tms.window_width,  0.50,
             _tms.window_height, 0.20);
 
     this->wdg_open = this->wm->create_widget(
@@ -209,7 +210,22 @@ menu_play::render()
 void
 menu_play::refresh_widgets()
 {
+    this->wm->remove_all();
+
     menu_base::refresh_widgets();
 
+    this->wdg_back->add();
+    this->wdg_version->add();
+    this->wdg_username->add();
+    this->wdg_message->add();
+    this->wdg_bithack->add();
+    this->wdg_settings->add();
+
+    this->wdg_browse_community->add();
+    this->wdg_open->add();
+    this->wdg_open_latest_state->add();
+    if (settings["has_opened_classic_puzzles"]->v.b)
+        this->wdg_puzzles->add();
+
     this->wm->rearrange();
 }

src/menu_pkg.cc

@@ -7,6 +7,7 @@
 #include "ui.hh"
 #include "misc.hh"
 #include "widget_manager.hh"
+#include "settings.hh"
 
 #include <unistd.h>
 
@@ -145,6 +146,10 @@ menu_pkg::menu_pkg()
 bool
 menu_pkg::set_pkg(int type, uint32_t id)
 {
+    if (type == LEVEL_MAIN && id == 7) {
+        settings["has_opened_classic_puzzles"]->v.b = true;
+    }
+
     tms_infof("set pkg");
     if (!(this->pkg.open(type,id))) {
         tms_errorf("could not open package!");

src/settings.cc

@@ -121,6 +121,8 @@ _settings::init()
     this->add("score_ask_before_submitting", S_BOOL, false);
     this->add("score_automatically_submit", S_BOOL, true);
 
+    this->add("has_opened_classic_puzzles", S_BOOL, false);
+
     sprintf(this->filename, "%s/settings.ini", tms_storage_path());
     FILE *fh;