From 5100956baed640d48f4b0a277af226826ab927ef Mon Sep 17 00:00:00 2001
From: Joonas Rikkonen <poe.regalis@gmail.com>
Date: Wed, 8 Aug 2018 15:30:32 +0300
Subject: [PATCH] Levels are mirrored when traveling backwards through a
 connection in the campaign mode. Closes #519

---
 .../BarotraumaClient/Source/Networking/GameClient.cs  |  5 ++++-
 .../BarotraumaClient/Source/Screens/LobbyScreen.cs    |  5 ++++-
 .../Source/GameSession/GameSession.cs                 | 11 +++++------
 .../BarotraumaShared/Source/Map/Levels/Level.cs       |  2 +-
 .../BarotraumaShared/Source/Networking/GameServer.cs  |  5 ++++-
 5 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/Barotrauma/BarotraumaClient/Source/Networking/GameClient.cs b/Barotrauma/BarotraumaClient/Source/Networking/GameClient.cs
index c794bd446..47bc41491 100644
--- a/Barotrauma/BarotraumaClient/Source/Networking/GameClient.cs
+++ b/Barotrauma/BarotraumaClient/Source/Networking/GameClient.cs
@@ -761,7 +761,10 @@ namespace Barotrauma.Networking
             else
             {
                 if (GameMain.GameSession?.CrewManager != null) GameMain.GameSession.CrewManager.Reset();
-                GameMain.GameSession.StartRound(campaign.Map.SelectedConnection.Level, true, false);
+                GameMain.GameSession.StartRound(campaign.Map.SelectedConnection.Level, 
+                    reloadSub: true, 
+                    loadSecondSub: false,
+                    mirrorLevel: campaign.Map.CurrentLocation != campaign.Map.SelectedConnection.Locations[0]);
             }
             
             if (respawnAllowed) respawnManager = new RespawnManager(this, GameMain.NetLobbyScreen.UsingShuttle ? GameMain.NetLobbyScreen.SelectedShuttle : null);
diff --git a/Barotrauma/BarotraumaClient/Source/Screens/LobbyScreen.cs b/Barotrauma/BarotraumaClient/Source/Screens/LobbyScreen.cs
index a8df21efa..8bd432931 100644
--- a/Barotrauma/BarotraumaClient/Source/Screens/LobbyScreen.cs
+++ b/Barotrauma/BarotraumaClient/Source/Screens/LobbyScreen.cs
@@ -190,7 +190,10 @@ namespace Barotrauma
 
         private IEnumerable<object> LoadRound()
         {
-            GameMain.GameSession.StartRound(campaignUI.SelectedLevel, true);
+            GameMain.GameSession.StartRound(campaignUI.SelectedLevel, 
+                reloadSub: true, 
+                loadSecondSub: false,
+                mirrorLevel: GameMain.GameSession.Map.CurrentLocation != GameMain.GameSession.Map.SelectedConnection.Locations[0]);
             GameMain.GameScreen.Select();
 
             yield return CoroutineStatus.Success;
diff --git a/Barotrauma/BarotraumaShared/Source/GameSession/GameSession.cs b/Barotrauma/BarotraumaShared/Source/GameSession/GameSession.cs
index 91ded070f..2c8b94a96 100644
--- a/Barotrauma/BarotraumaShared/Source/GameSession/GameSession.cs
+++ b/Barotrauma/BarotraumaShared/Source/GameSession/GameSession.cs
@@ -182,7 +182,7 @@ namespace Barotrauma
             StartRound(randomLevel, true, loadSecondSub);
         }
 
-        public void StartRound(Level level, bool reloadSub = true, bool loadSecondSub = false)
+        public void StartRound(Level level, bool reloadSub = true, bool loadSecondSub = false, bool mirrorLevel = false)
         {
 #if CLIENT
             GameMain.LightManager.LosEnabled = GameMain.NetworkMember == null || GameMain.NetworkMember.CharacterInfo != null;
@@ -210,11 +210,10 @@ namespace Barotrauma
                     Submarine.MainSubs[1].Load(false);
                 }
             }
-            
+                        
             if (level != null)
             {
-                level.Generate();
-
+                level.Generate(mirrorLevel);
                 submarine.SetPosition(submarine.FindSpawnPos(level.StartPosition - new Vector2(0.0f, 2000.0f)));
             }
 
@@ -229,9 +228,9 @@ namespace Barotrauma
             if (GameMode != null)
             {
                 GameMode.MsgBox();
-                if (GameMode is MultiPlayerCampaign campaign && GameMain.Server != null)
+                if (GameMode is MultiPlayerCampaign mpCampaign && GameMain.Server != null)
                 {
-                    campaign.CargoManager.CreateItems();
+                    mpCampaign.CargoManager.CreateItems();
                 }
             }
             
diff --git a/Barotrauma/BarotraumaShared/Source/Map/Levels/Level.cs b/Barotrauma/BarotraumaShared/Source/Map/Levels/Level.cs
index 8c243c52e..3137b9385 100644
--- a/Barotrauma/BarotraumaShared/Source/Map/Levels/Level.cs
+++ b/Barotrauma/BarotraumaShared/Source/Map/Levels/Level.cs
@@ -199,7 +199,7 @@ namespace Barotrauma
             return new Level(seed, Rand.Range(30.0f, 80.0f, Rand.RandSync.Server), LevelGenerationParams.GetRandom(seed));
         }
 
-        public void Generate(bool mirror = true)
+        public void Generate(bool mirror)
         {
             Mirrored = mirror;
 
diff --git a/Barotrauma/BarotraumaShared/Source/Networking/GameServer.cs b/Barotrauma/BarotraumaShared/Source/Networking/GameServer.cs
index 6cd095e1a..30e6cc5be 100644
--- a/Barotrauma/BarotraumaShared/Source/Networking/GameServer.cs
+++ b/Barotrauma/BarotraumaShared/Source/Networking/GameServer.cs
@@ -1243,7 +1243,10 @@ namespace Barotrauma.Networking
 #if CLIENT
                 if (GameMain.GameSession?.CrewManager != null) GameMain.GameSession.CrewManager.Reset();
 #endif
-                GameMain.GameSession.StartRound(campaign.Map.SelectedConnection.Level, true, teamCount > 1);
+                GameMain.GameSession.StartRound(campaign.Map.SelectedConnection.Level, 
+                    reloadSub: true, 
+                    loadSecondSub: teamCount > 1,
+                    mirrorLevel: campaign.Map.CurrentLocation != campaign.Map.SelectedConnection.Locations[0]);
             }
             else
             {