From 5f44bc4d5fada75fcd6449c5f947fd083f61c0b0 Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Mon, 27 Mar 2017 10:55:51 +0300
Subject: [PATCH] Fixed crash in line portal setup

https://mantis.zdoom.org/view.php?id=488
---
 src/portal.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/portal.cpp b/src/portal.cpp
index 1ec92799f4..acf6e022de 100644
--- a/src/portal.cpp
+++ b/src/portal.cpp
@@ -167,7 +167,7 @@ static void BuildBlockmap()
 
 void FLinePortalTraverse::AddLineIntercepts(int bx, int by)
 {
-	if (by < 0 || by >= PortalBlockmap.dx || bx < 0 || bx >= PortalBlockmap.dy) return;
+	if (by < 0 || by >= PortalBlockmap.dy || bx < 0 || bx >= PortalBlockmap.dx) return;
 
 	FPortalBlock &block = PortalBlockmap(bx, by);