From 40e3447805d80ff20f30e343a23c179c474c6a08 Mon Sep 17 00:00:00 2001
From: Fabian Greffrath <fabian@greffrath.com>
Date: Tue, 6 May 2025 10:34:58 +0200
Subject: [PATCH] simplify check for PL_FLATMAPPING in do_draw_plane()

---
 src/r_plane.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/src/r_plane.c b/src/r_plane.c
index e27a5eb6..8f932f05 100644
--- a/src/r_plane.c
+++ b/src/r_plane.c
@@ -619,19 +619,10 @@ static void do_draw_plane(visplane_t *pl)
 
     // sky flat
 
-    if (sky)
+    if (pl->picnum == skyflatnum && sky)
     {
-        if ((pl->picnum & PL_FLATMAPPING) == PL_FLATMAPPING)
-        {
-            do_draw_mbf_sky(pl);
-            return;
-        }
-
-        if (pl->picnum == skyflatnum)
-        {
-            DrawSkyDef(pl);
-            return;
-        }
+        DrawSkyDef(pl);
+        return;
     }
 
     if (pl->picnum == skyflatnum || pl->picnum & PL_SKYFLAT)