fix random generated mp maps.

fix https://gna.org/bugs/?22410

src/create_engine.cpp

@@ -430,6 +430,7 @@ void create_engine::prepare_for_new_level()
 {
 	DBG_MP << "preparing mp_game_settings for new level\n";
 	state_.expand_scenario();
+	state_.expand_random_scenario();
 }
 
 void create_engine::prepare_for_era_and_mods()
@@ -563,6 +564,12 @@ void create_engine::prepare_for_saved_game()
 	state_.mp_settings().name = vgettext("$login|’s game", i18n_symbols);
 }
 
+void create_engine::prepare_for_other()
+{
+	state_.set_scenario(current_level().data());
+	state_.mp_settings().hash = current_level().data().hash();
+}
+
 void create_engine::apply_level_filter(const std::string &name)
 {
 	level_name_filter_ = name;

src/create_engine.hpp

@@ -186,6 +186,8 @@ public:
 	void prepare_for_scenario();
 	void prepare_for_campaign(const std::string& difficulty);
 	void prepare_for_saved_game();
+	//random maps, user maps
+	void prepare_for_other();
 	
 	std::string select_campaign_difficulty(int set_value = -1);
 

src/multiplayer_create.cpp

@@ -235,9 +235,16 @@ void create::process_event()
 				}
 
 				engine_.prepare_for_campaign(difficulty);
-			} else {
+			}
+			else if (engine_.current_level_type() == ng::level::SCENARIO)
+			{
 				engine_.prepare_for_scenario();
 			}
+			else
+			{
+				//This means define= doesn't work for random generated scenarios
+				engine_.prepare_for_other();
+			}
 
 			engine_.prepare_for_new_level();