working on campaign

src/GameState.h

@@ -32,9 +32,13 @@ struct StoredChatMessage {
 	bool incoming;
 };
 
+using LocationMap = std::unordered_map<std::string, std::shared_ptr<Location>>;
+
 struct GameState : public ISaveable {
 	// --- World ---
-	std::unordered_map<std::string, std::shared_ptr<Location>> locations;
+	// Campaign being played (see CampaignRegistry); `locations` holds that campaign's locations.
+	std::string campaignId = "main";
+	LocationMap locations;
 	std::string currentLocationName;
 	bool isDarklands = false;
 	bool isNight     = false;