From 9fb7ba77e4247303900b548b43adef6397d161f1 Mon Sep 17 00:00:00 2001
From: James R <justsomejames2@gmail.com>
Date: Thu, 15 Oct 2020 14:47:10 -0700
Subject: [PATCH] Midtexture step up/down

---
 src/p_maputl.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/p_maputl.c b/src/p_maputl.c
index 733adc6ad3..ee1fb5a421 100644
--- a/src/p_maputl.c
+++ b/src/p_maputl.c
@@ -437,8 +437,8 @@ void P_LineOpening(line_t *linedef, mobj_t *mobj)
 	fixed_t topedge[2] = {0};
 	fixed_t botedge[2] = {0};
 
-	int hi;
-	int lo;
+	int hi = 0;
+	int lo = 0;
 
 	if (linedef->sidenum[1] == 0xffff)
 	{
@@ -580,12 +580,20 @@ void P_LineOpening(line_t *linedef, mobj_t *mobj)
 				if (delta1 > delta2) { // Below
 					if (opentop > texbottom)
 					{
+						topedge[lo] -= ( opentop - texbottom );
+
 						opentop = texbottom;
+						openceilingstep = ( thingtop    - topedge[lo] );
+						openceilingdrop = ( topedge[hi] - topedge[lo] );
 					}
 				} else { // Above
 					if (openbottom < textop)
 					{
+						botedge[hi] += ( textop - openbottom );
+
 						openbottom = textop;
+						openfloorstep = ( botedge[hi] - mobj->z );
+						openfloordrop = ( botedge[hi] - botedge[lo] );
 					}
 				}
 			}
-- 
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