From 34d45e210f74edf0690df413b45cc7630d91bd01 Mon Sep 17 00:00:00 2001
From: Rudolf Polzer <divverent@xonotic.org>
Date: Wed, 23 Nov 2011 12:01:02 +0100
Subject: [PATCH] _farplanedist now ignores C_SKY leafs

---
 tools/quake3/q3map2/prtfile.c | 14 ++++++++++----
 tools/quake3/q3map2/q3map2.h  |  1 +
 tools/quake3/q3map2/vis.c     |  9 +++++----
 tools/quake3/q3map2/visflow.c |  1 +
 4 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/tools/quake3/q3map2/prtfile.c b/tools/quake3/q3map2/prtfile.c
index 2f10c7c0..e3759c0c 100644
--- a/tools/quake3/q3map2/prtfile.c
+++ b/tools/quake3/q3map2/prtfile.c
@@ -102,7 +102,7 @@ WritePortalFile_r
 */
 void WritePortalFile_r (node_t *node)
 {
-	int			i, s;	
+	int			i, s, flags;
 	portal_t	*p;
 	winding_t	*w;
 	vec3_t		normal;
@@ -144,12 +144,18 @@ void WritePortalFile_r (node_t *node)
 			}
 			else
 				fprintf (pf,"%i %i %i ",w->numpoints, p->nodes[0]->cluster, p->nodes[1]->cluster);
+
+			flags = 0;
 			
 			/* ydnar: added this change to make antiportals work */
 			if( p->compileFlags & C_HINT )
-				fprintf( pf, "1 " );
-			else
-				fprintf( pf, "0 " );
+				flags |= 1;
+
+			/* divVerent: I want farplanedist to not kill skybox. So... */
+			if( p->compileFlags & C_SKY )
+				flags |= 2;
+
+			fprintf( pf, "%d ", flags );
 			
 			/* write the winding */
 			for (i=0 ; i<w->numpoints ; i++)
diff --git a/tools/quake3/q3map2/q3map2.h b/tools/quake3/q3map2/q3map2.h
index 8c240ea8..427c0279 100644
--- a/tools/quake3/q3map2/q3map2.h
+++ b/tools/quake3/q3map2/q3map2.h
@@ -1236,6 +1236,7 @@ typedef struct
 {
 	int					num;
 	qboolean			hint;			/* true if this portal was created from a hint splitter */
+	qboolean			sky;			/* true if this portal belongs to a sky leaf */
 	qboolean			removed;
 	visPlane_t			plane;			/* normal pointing into neighbor */
 	int					leaf;			/* neighbor */
diff --git a/tools/quake3/q3map2/vis.c b/tools/quake3/q3map2/vis.c
index b9291922..87fb3a31 100644
--- a/tools/quake3/q3map2/vis.c
+++ b/tools/quake3/q3map2/vis.c
@@ -870,7 +870,7 @@ LoadPortals
 */
 void LoadPortals (char *name)
 {
-	int			i, j, hint;
+	int			i, j, flags;
 	vportal_t	*p;
 	leaf_t		*l;
 	char		magic[80];
@@ -935,8 +935,8 @@ void LoadPortals (char *name)
 		if (leafnums[0] > portalclusters
 		|| leafnums[1] > portalclusters)
 			Error ("LoadPortals: reading portal %i", i);
-		if (fscanf (f, "%i ", &hint) != 1)
-			Error ("LoadPortals: reading hint state");
+		if (fscanf (f, "%i ", &flags) != 1)
+			Error ("LoadPortals: reading flags");
 		
 		w = p->winding = NewFixedWinding (numpoints);
 		w->numpoints = numpoints;
@@ -970,7 +970,8 @@ void LoadPortals (char *name)
 		l->numportals++;
 		
 		p->num = i+1;
-		p->hint = hint;
+		p->hint = ((flags & 1) != 0);
+		p->sky = ((flags & 2) != 0);
 		p->winding = w;
 		VectorSubtract (vec3_origin, plane.normal, p->plane.normal);
 		p->plane.dist = -plane.dist;
diff --git a/tools/quake3/q3map2/visflow.c b/tools/quake3/q3map2/visflow.c
index c3bdfdda..672b91a5 100644
--- a/tools/quake3/q3map2/visflow.c
+++ b/tools/quake3/q3map2/visflow.c
@@ -1583,6 +1583,7 @@ void BasePortalVis( int portalnum )
 		*/
 		
 		/* ydnar: this is known-to-be-working farplane code */
+		if( !p->sky && !tp->sky )
 		if( farPlaneDist > 0.0f )
 		{
 			VectorSubtract( p->origin, tp->origin, dir );
-- 
2.39.2