Adapting music to web, fixing scripts, fixing bug in initial state

src/MenuManager.h

@@ -130,7 +130,20 @@ namespace FRG {
 		std::shared_ptr<Texture> languageLoadingEn;
 
 		bool shadowsEnabled = true;
+		std::string lastMusicTrack;
 
+#ifdef __EMSCRIPTEN__
+		static void onMusicZipLoaded(unsigned /*handle*/, void* /*userData*/, const char* /*filename*/);
+		static void onMusicZipError(unsigned /*handle*/, void* /*userData*/, int httpStatus);
+		static void onMusicZipProgress(unsigned /*handle*/, void* /*userData*/, int percentComplete);
+
+		float musicDownloadProgress = 0.0f;
+
+		bool musicDownloadStarted = false;
+		bool musicDownloadError = false;
+		bool playerInSettingsNoMusic = false;
+		bool playerInSettingsNoMusicGraphics = false;
+#endif
 
 	protected:
 		Renderer& renderer;
@@ -176,6 +189,10 @@ namespace FRG {
 		void showCreditsScreen();
 		void showSettingsScreen();
 		void showSettingsGraphicsScreen();
+
+#ifdef __EMSCRIPTEN__
+		void showSettingsNoMusicWebScreen();
+#endif
 		void showLanguageScreen();
 		void showLoadGameScreen();
 		void showSaveGameScreen();
@@ -268,6 +285,9 @@ namespace FRG {
 		std::shared_ptr<UiNode> creditsScreenRoot;
 		std::shared_ptr<UiNode> portraitCreditsScreenRoot;
 
+#ifdef __EMSCRIPTEN__
+		std::shared_ptr<UiNode> settingsScreenNoMusicWebRoot;
+#endif
 		std::shared_ptr<UiNode> settingsScreenRoot;
 		std::shared_ptr<UiNode> settingsGraphicsScreenRoot;
 		std::shared_ptr<UiNode> languageScreenRoot;
@@ -343,6 +363,7 @@ namespace FRG {
 		std::string fullScreenToggleOff;
 		std::string shadowToggleOn;
 		std::string shadowToggleOff;
+		std::string musicDownloadProgressPrefix;
 
 	};