Added error overlay which is used to display errors in a more user friendly way, currently only used if the CSharp compilation fails

Barotrauma/BarotraumaClient/ClientSource/GameMain.cs

@@ -862,6 +862,8 @@ namespace Barotrauma
 
                     Screen.Selected.AddToGUIUpdateList();
 
+                    LuaCsLogger.AddToGUIUpdateList();
+
                     Client?.AddToGUIUpdateList();
 
                     SubmarinePreview.AddToGUIUpdateList();

Barotrauma/BarotraumaClient/ClientSource/LuaCs/LuaCsLogger.cs

@@ -0,0 +1,50 @@
+using Microsoft.Xna.Framework;
+
+namespace Barotrauma
+{
+    partial class LuaCsLogger
+    {
+        private static GUIFrame overlayFrame;
+        private static GUITextBlock textBlock;
+        private static double showTimer = 0;
+
+        private static void CreateOverlay(string message)
+        {
+            overlayFrame = new GUIFrame(new RectTransform(new Vector2(0.4f, 0.03f), null), null, new Color(50, 50, 50, 100))
+            {
+                CanBeFocused = false
+            };
+
+            GUILayoutGroup layout = new GUILayoutGroup(new RectTransform(new Vector2(0.8f, 0.8f), overlayFrame.RectTransform, Anchor.CenterLeft), false, Anchor.Center)
+            {
+
+            };
+
+            textBlock = new GUITextBlock(new RectTransform(new Vector2(1f, 0f), layout.RectTransform), message);
+            overlayFrame.RectTransform.MinSize = new Point((int)(textBlock.TextSize.X * 1.2), 0);
+
+            layout.Recalculate();
+        }
+
+        public static void AddToGUIUpdateList()
+        {
+            if (overlayFrame != null && Timing.TotalTime <= showTimer)
+            {
+                overlayFrame.AddToGUIUpdateList();
+            }
+        }
+
+        public static void ShowErrorOverlay(string message, float time = 5f, float duration = 1.5f)
+        {
+            if (Timing.TotalTime <= showTimer)
+            {
+                return;
+            }
+
+            CreateOverlay(message);
+
+            overlayFrame.Flash(Color.Red, duration, true);
+            showTimer = Timing.TotalTime + time;
+        }
+    }
+}

Barotrauma/BarotraumaClient/ClientSource/LuaCs/LuaCsSettingsMenu.cs

@@ -56,6 +56,19 @@ namespace Barotrauma
                 }
             };
 
+            new GUITickBox(new RectTransform(new Vector2(0.8f, 0.1f), list.Content.RectTransform), "Disalbe Error GUI Overlay")
+            {
+                Selected = GameMain.LuaCs.Config.DisableErrorGUIOverlay,
+                ToolTip = "",
+                OnSelected = (GUITickBox tick) =>
+                {
+                    GameMain.LuaCs.Config.DisableErrorGUIOverlay = tick.Selected;
+                    GameMain.LuaCs.UpdateConfig();
+
+                    return true;
+                }
+            };
+
             new GUIButton(new RectTransform(new Vector2(1f, 0.1f), list.Content.RectTransform), $"Remove Client-Side LuaCs", style: "GUIButtonSmall")
             {
                 ToolTip = "Remove Client-Side LuaCs.",

Barotrauma/BarotraumaClient/ClientSource/LuaCs/LuaCsSetup.cs

@@ -6,6 +6,14 @@ namespace Barotrauma
 {
     partial class LuaCsSetup
     {
+        public void AddToGUIUpdateList()
+        {
+            if (!GameMain.LuaCs.Config.DisableErrorGUIOverlay)
+            {
+                LuaCsLogger.AddToGUIUpdateList();
+            }
+        }
+
         public void CheckInitialize()
         {
             List<ContentPackage> csharpMods = new List<ContentPackage>();