Add Disable Tile Culling Option

Patch/Game/scnGamePatch.cs

@@ -30,8 +30,19 @@ public static class scnGamePatch
     [HarmonyPatch("Play")]
     public static void ProcessFloors()
     {
-        var nonTile = RenderManager.Instance.stage >= RenderStage.Load &&
-                      RenderManager.Instance.Configuration.AdvancedConfig.NonTile;
+        if (RenderManager.Instance &&
+            RenderManager.Instance.stage >= RenderStage.Load &&
+            RenderManager.Instance.Configuration?.AdvancedConfig?.DisableTileCulling == true)
+        {
+            foreach (var floor in scrLevelMaker.instance.listFloors)
+            {
+                if (floor) floor.enabled = true;
+            }
+        }
+
+        var nonTile = RenderManager.Instance &&
+                      RenderManager.Instance.stage >= RenderStage.Load &&
+                      RenderManager.Instance.Configuration?.AdvancedConfig?.NonTile == true;
 
         if (!nonTile) return;
         foreach (var floor in scrLevelMaker.instance.listFloors)

Patch/Game/scrFloorPatch.cs

@@ -33,4 +33,41 @@ public class scrFloorPatch
                       RenderManager.Instance.Configuration.AdvancedConfig.NonTile;
         return !nonTile;
     }
+
+    /// <summary>
+    /// Postfix of <c>scrFloor.Start</c>.
+    /// The game sets <c>enabled = isVisible</c> in Start(), which disables all off-screen tiles right at spawn.
+    /// When <c>DisableTileCulling</c> is enabled, force every floor to remain enabled.
+    /// </summary>
+    [HarmonyPostfix]
+    [HarmonyPatch("Start")]
+    public static void ForceEnableOnStart(scrFloor __instance)
+    {
+        if (RenderManager.Instance &&
+            RenderManager.Instance.stage >= RenderStage.Load &&
+            RenderManager.Instance.Configuration.AdvancedConfig.DisableTileCulling)
+        {
+            __instance.enabled = true;
+        }
+    }
+
+    /// <summary>
+    /// Prefix of <c>scrFloor.OnBecameInvisible</c>.
+    /// Skips disabling the floor component (<c>enabled = false</c>) while rendering with
+    /// <c>AdvancedConfig.DisableTileCulling</c> enabled, preventing the 1-frame update lag/glitch
+    /// when tiles enter the camera view.
+    /// </summary>
+    [HarmonyPrefix]
+    [HarmonyPatch("OnBecameInvisible")]
+    // ReSharper disable once InconsistentNaming
+    public static bool PreventTileCulling(scrFloor __instance)
+    {
+        if (RenderManager.Instance &&
+            RenderManager.Instance.stage >= RenderStage.Load &&
+            RenderManager.Instance.Configuration.AdvancedConfig.DisableTileCulling)
+        {
+            return false;
+        }
+        return true;
+    }
 }