More work on the login system, especially 'tangible.redirect'

luprex/core/cpp/textgame.cpp

@@ -149,7 +149,7 @@ void TextGame::do_quit_command(const StringVec &cmd) {
         std::cerr << "q command (quit) takes no arguments" << std::endl;
         return;
     }
-    exit(0);
+    actor_id_ = 0;
 }
 
 void TextGame::do_command(const StringVec &words) {
@@ -184,6 +184,7 @@ void TextGame::run()
     console_.clear();
     while (true) {
         check_redirects();
+        if (actor_id_ == 0) break;
         console_.add_stdin();
         int action = console_.action();
         if (action == LuaConsole::DO_LUA) {