From b7be04a9a9968f61a5772a3e0eb4eea7d3a905a4 Mon Sep 17 00:00:00 2001
From: div0 <div0@f962a42d-fe04-0410-a3ab-8c8b0445ebaa>
Date: Sun, 21 Sep 2008 12:35:38 +0000
Subject: [PATCH] add a misisng portal side check

git-svn-id: svn://svn.icculus.org/nexuiz/trunk@4476 f962a42d-fe04-0410-a3ab-8c8b0445ebaa
---
 data/qcsrc/server/portals.qc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/data/qcsrc/server/portals.qc b/data/qcsrc/server/portals.qc
index 156abb3f1..b98bf4173 100644
--- a/data/qcsrc/server/portals.qc
+++ b/data/qcsrc/server/portals.qc
@@ -422,6 +422,9 @@ void Portal_Think()
 	o = self.owner;
 	self.solid = SOLID_BBOX;
 	self.owner = world;
+
+	fixedmakevectors(self.angles);
+
 	FOR_EACH_PLAYER(e)
 	{
 		if(time < self.portal_activatetime)
@@ -430,6 +433,9 @@ void Portal_Think()
 		if(e != o)
 			if(IS_INDEPENDENT_PLAYER(e) || IS_INDEPENDENT_PLAYER(o))
 				continue; // cannot go through someone else's portal
+		if((e.origin - self.origin) * v_forward < 0) // wrong side of the plane? no teleport
+			continue;
+
 		// if e would hit the portal in a frame...
 		// already teleport him
 		tracebox(e.origin, e.mins, e.maxs, e.origin + e.velocity * 2 * frametime, MOVE_NORMAL, e);
-- 
2.39.2