From 76dd045925622ea3b35204df18f7fbd179b2ec51 Mon Sep 17 00:00:00 2001
From: Rudolf Polzer <divverent@alientrap.org>
Date: Thu, 1 Dec 2011 16:47:35 +0100
Subject: [PATCH] properly support -keeplights option. Current implementation
 never worked.

---
 tools/quake3/q3map2/bsp.c      |  5 +++++
 tools/quake3/q3map2/light.c    | 11 -----------
 tools/quake3/q3map2/writebsp.c |  4 ++++
 3 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/tools/quake3/q3map2/bsp.c b/tools/quake3/q3map2/bsp.c
index f9fe902..e1b1e2f 100644
--- a/tools/quake3/q3map2/bsp.c
+++ b/tools/quake3/q3map2/bsp.c
@@ -702,6 +702,11 @@ int BSPMain( int argc, char **argv )
 			Sys_Printf( "Disabling water\n" );
 			nowater = qtrue;
 		}
+		else if( !strcmp( argv[ i ], "-keeplights" ))
+		{
+			keepLights = qtrue;
+			Sys_Printf( "Leaving light entities on map after compile\n" );
+		}
 		else if( !strcmp( argv[ i ],  "-nodetail" ) )
 		{
 			Sys_Printf( "Ignoring detail brushes\n") ;
diff --git a/tools/quake3/q3map2/light.c b/tools/quake3/q3map2/light.c
index c7f1e72..f4a735c 100644
--- a/tools/quake3/q3map2/light.c
+++ b/tools/quake3/q3map2/light.c
@@ -2105,12 +2105,6 @@ int LightMain( int argc, char **argv )
 	else
 		Sys_Printf( " shader lightstyles hack: enabled\n" );
 
-	keepLights = game->keepLights;
-	if (keepLights == qtrue)
-		Sys_Printf( " keep lights: enabled\n" );
-	else
-		Sys_Printf( " keep lights: disabled\n" );
-
 	patchShadows = game->patchShadows;
 	if (patchShadows == qtrue)
 		Sys_Printf( " patch shadows: enabled\n" );
@@ -2730,11 +2724,6 @@ int LightMain( int argc, char **argv )
 			noStyles = qfalse;
 			Sys_Printf( "Enabling lightstyles\n" );
 		}
-		else if( !strcmp( argv[ i ], "-keeplights" ))
-		{
-			keepLights = qtrue;
-			Sys_Printf( "Leaving light entities on map after compile\n" );
-		}
 		else if( !strcmp( argv[ i ], "-cpma" ) )
 		{
 			cpmaHack = qtrue;
diff --git a/tools/quake3/q3map2/writebsp.c b/tools/quake3/q3map2/writebsp.c
index 2e6e67a..106e618 100644
--- a/tools/quake3/q3map2/writebsp.c
+++ b/tools/quake3/q3map2/writebsp.c
@@ -287,6 +287,10 @@ void SetLightStyles( void )
 	char		lightTargets[ MAX_SWITCHED_LIGHTS ][ 64 ];
 	int			lightStyles[ MAX_SWITCHED_LIGHTS ];
 
+	/* -keeplights option: force lights to be kept and ignore what the map file says */
+	if (keepLights)
+		SetKeyValue(&entities[0], "_keepLights", "1");
+
 	/* ydnar: determine if we keep lights in the bsp */
 	if (KeyExists(&entities[ 0 ], "_keepLights") == qtrue)
 	{
-- 
2.39.2