From 5ee552ea5ba69b945a2e34c034b0bd4a51dddf2f Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Sun, 27 Nov 2011 17:41:32 +0900
Subject: [PATCH] Don't normalize the portal edge vectors.

This simplifies the collision handling code.
---
 include/QF/winding.h  | 5 +++--
 libs/models/portal.c  | 2 +-
 libs/models/winding.c | 5 +++--
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/include/QF/winding.h b/include/QF/winding.h
index 0696aa678..a467b2daa 100644
--- a/include/QF/winding.h
+++ b/include/QF/winding.h
@@ -90,10 +90,11 @@ winding_t *CopyWindingReverse (const winding_t *w);
 	given winding.
 
 	\param w		The winding to convert.
-	\return			The "winding" holding the unit vectors.
+	\param unit		If true, normalize the vectors.
+	\return			The "winding" holding the (unit) vectors.
 	\note It is the caller's responsibiltiy to free the new winding.
 */
-winding_t *WindingVectors (const winding_t *w);
+winding_t *WindingVectors (const winding_t *w, int unit);
 
 /**	Clip the winding to the plain.
 
diff --git a/libs/models/portal.c b/libs/models/portal.c
index f6d312ff9..d7170b0d1 100644
--- a/libs/models/portal.c
+++ b/libs/models/portal.c
@@ -189,7 +189,7 @@ MOD_BuildBrushes (hull_t *hull)
 				side = p->leafs[1] == leaf;
 				if (p->edges)
 					continue;
-				p->edges = WindingVectors (p->winding);
+				p->edges = WindingVectors (p->winding, 0);
 			}
 		}
 	}
diff --git a/libs/models/winding.c b/libs/models/winding.c
index e75be9731..455707a36 100644
--- a/libs/models/winding.c
+++ b/libs/models/winding.c
@@ -141,7 +141,7 @@ CopyWindingReverse (const winding_t *w)
 }
 
 winding_t *
-WindingVectors (const winding_t *w)
+WindingVectors (const winding_t *w, int unit)
 {
 	int         i;
 	size_t      size;
@@ -153,7 +153,8 @@ WindingVectors (const winding_t *w)
 	for (i = 0; i < w->numpoints; i++) {
 		VectorSubtract (w->points[(i + 1) % w->numpoints], w->points[i],
 						c->points[i]);
-		VectorNormalize (c->points[i]);
+		if (unit)
+			VectorNormalize (c->points[i]);
 	}
 	return c;
 }