From c3d665fda600d887075c1ac686170e6a3d41b635 Mon Sep 17 00:00:00 2001
From: Brad Harding <brad@doomretro.com>
Date: Fri, 6 Dec 2024 08:33:13 +1100
Subject: [PATCH] Improve traversing adjacent liquid sectors at different
 heights

---
 src/p_map.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/p_map.c b/src/p_map.c
index 7654bc0fc..21c9bce28 100644
--- a/src/p_map.c
+++ b/src/p_map.c
@@ -1001,7 +1001,7 @@ bool P_IsInLiquid(mobj_t *thing)
         {
             const sector_t  *sector = seclist->m_sector;
 
-            if (sector->terraintype < LIQUID || sector->isselfreferencing)
+            if ((sector->terraintype < LIQUID && thing->z == sector->floorheight) || sector->isselfreferencing)
                 return false;
         }
     }
@@ -1018,7 +1018,7 @@ bool P_IsInLiquid(mobj_t *thing)
             {
                 const sector_t *sector = seclist->m_sector;
 
-                if (sector->terraintype < LIQUID || sector->isselfreferencing)
+                if ((sector->terraintype < LIQUID && thing->z == sector->floorheight) || sector->isselfreferencing)
                     return false;
             }
         }