From d62d345a7bbe3baa583a034e1e2af90760ff92f2 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <c.oelckers@zdoom.fake>
Date: Mon, 8 Aug 2016 13:06:29 +0200
Subject: [PATCH] =?UTF-8?q?-=20fixed:=20The=20cosine=20of=200=C2=B0=20is?=
 =?UTF-8?q?=201,=20not=200,=20as=20the=20portal=20code=20assumed=20for=20l?=
 =?UTF-8?q?inked=20portals.?=
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---
 src/portal.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/portal.cpp b/src/portal.cpp
index bf919f09a4..d7dad220ee 100644
--- a/src/portal.cpp
+++ b/src/portal.cpp
@@ -294,7 +294,8 @@ static void SetRotation(FLinePortal *port)
 		else
 		{
 			// Linked portals have no angular difference.
-			port->mSinRot = port->mCosRot = 0.;
+			port->mSinRot = 0.;
+			port->mCosRot = 1.;
 			port->mAngleDiff = 0.;
 		}
 	}