Fixed demo mode

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/minecraft/auth/AuthSession.cpp

@@ -30,8 +30,13 @@ bool AuthSession::MakeOffline(QString offline_playername)
     return true;
 }
 
-void AuthSession::MakeDemo()
+void AuthSession::MakeDemo(QString name, QString u)
 {
-    player_name = "Player";
+    wants_online = false;
     demo = true;
-}
+    uuid = u;
+    session = "-";
+    access_token = "0";
+    player_name = name;
+    status = PlayableOnline;  // needs online to download the assets
+};

launcher/minecraft/auth/AuthSession.h

@@ -10,7 +10,7 @@ class QNetworkAccessManager;
 
 struct AuthSession {
     bool MakeOffline(QString offline_playername);
-    void MakeDemo();
+    void MakeDemo(QString name, QString uuid);
 
     QString serializeUserProperties();
 

launcher/minecraft/auth/MinecraftAccount.cpp

@@ -269,6 +269,8 @@ void MinecraftAccount::fillSession(AuthSessionPtr session)
     session->player_name = data.profileName();
     // profile ID
     session->uuid = data.profileId();
+    if (session->uuid.isEmpty())
+        session->uuid = uuidFromUsername(session->player_name).toString().remove(QRegularExpression("[{}-]"));
     // 'legacy' or 'mojang', depending on account type
     session->user_type = typeString();
     if (!session->access_token.isEmpty()) {