feat: nameless worlds

src/logic/LevelController.cpp

@@ -108,6 +108,10 @@ void LevelController::update(float delta, bool pause) {
 
 void LevelController::saveWorld() {
     auto world = level->getWorld();
+    if (world->isNameless()) {
+        logger.info() << "nameless world will not be saved";
+        return;
+    }
     logger.info() << "writing world '" << world->getName() << "'";
     world->wfile->createDirectories();
     scripting::on_world_save();

src/world/World.cpp

@@ -94,7 +94,12 @@ std::unique_ptr<Level> World::create(
         content,
         packs
     );
-    logger.info() << "created world '" << name << "' (" << directory.u8string() << ")";
+    if (name.empty()) {
+        logger.info() << "created nameless world";
+    } else {
+        logger.info() << "created world '" << name << "' ("
+                      << directory.u8string() << ")";
+    }
     logger.info() << "world seed: " << seed << " generator: " << generator;
     return std::make_unique<Level>(std::move(world), content, settings);
 }

src/world/World.hpp

@@ -140,6 +140,10 @@ public:
     /// @brief Get world generator id
     std::string getGenerator() const;
 
+    bool isNameless() const {
+        return info.name.empty();
+    }
+
     WorldInfo& getInfo() {
         return info;
     }