From d4d44777f43297f398247f8db81302d493f25763 Mon Sep 17 00:00:00 2001
From: toasterbabe <rollerorbital@gmail.com>
Date: Tue, 31 May 2016 17:43:27 +0100
Subject: [PATCH] Okay, now vertex slopes aren't placement-order-dependent any
 more. Hopefully this is the best way to handle things.

---
 src/p_slopes.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/p_slopes.c b/src/p_slopes.c
index 659f8b33..d9e2cef6 100644
--- a/src/p_slopes.c
+++ b/src/p_slopes.c
@@ -546,9 +546,17 @@ static pslope_t *P_NewVertexSlope(INT16 tag1, INT16 tag2, INT16 tag3, UINT8 flag
 			continue;
 
 		if (!ret->vertices[0] && mt->angle == tag1)
+		{
 			ret->vertices[0] = mt;
+			mt = mapthings;
+			i = 0;
+		}
 		else if (!ret->vertices[1] && mt->angle == tag2)
+		{
 			ret->vertices[1] = mt;
+			mt = mapthings;
+			i = 0;
+		}
 		else if (!ret->vertices[2] && mt->angle == tag3)
 			ret->vertices[2] = mt;
 	}