Minor refactor

src/content/ContentPack.cpp

@@ -78,3 +78,12 @@ fs::path ContentPack::findPack(const EnginePaths* paths, std::string name) {
     }
     return folder;
 }
+
+void ContentPack::readPacks(const EnginePaths* paths,
+                            std::vector<ContentPack>& packs, 
+                            const std::vector<std::string>& packnames) {
+    for (const auto& name : packnames) {
+        fs::path packfolder = ContentPack::findPack(paths, name);
+        packs.push_back(ContentPack::read(packfolder));
+    }
+}

src/content/ContentPack.h

@@ -36,6 +36,9 @@ struct ContentPack {
                      std::vector<ContentPack>& packs);
     static std::vector<std::string> worldPacksList(std::filesystem::path folder);
     static std::filesystem::path findPack(const EnginePaths* paths, std::string name);
+    static void readPacks(const EnginePaths* paths,
+                          std::vector<ContentPack>& packs, 
+                          const std::vector<std::string>& names);
 };
 
 #endif // CONTENT_CONTENT_PACK_H_

src/frontend/menu.cpp

@@ -147,25 +147,19 @@ void create_languages_panel(Engine* engine, PagesControl* menu) {
 }
 
 void open_world(std::string name, Engine* engine) {
-    // TODO: complete and move somewhere
     auto paths = engine->getPaths();
-    auto resdir = paths->getResources();
     auto folder = paths->getWorldsFolder()/fs::u8path(name);
-    
     auto& packs = engine->getContentPacks();
     packs.clear();
-    auto packnames = ContentPack::worldPacksList(folder);
+    try {
-    for (auto name : packnames) {
+        auto packNames = ContentPack::worldPacksList(folder);
-        try {
+        ContentPack::readPacks(paths, packs, packNames);
-            fs::path packfolder = ContentPack::findPack(paths, name);
+    } catch (contentpack_error& error) {
-            packs.push_back(ContentPack::read(packfolder));
+        // could not to find or read pack
-        } catch (contentpack_error& error) {
+        guiutil::alert(engine->getGUI(), 
-            // could not to find or read pack
+                        langs::get(L"error.pack-not-found")+
-            guiutil::alert(engine->getGUI(), 
+                        L": "+util::str2wstr_utf8(error.getPackId()));
-                           langs::get(L"error.pack-not-found")+
+        return;
-                           L": "+util::str2wstr_utf8(error.getPackId()));
-            return;
-        }
     }
     engine->loadContent();