From c442eb684d0a4584fcc1aad76433bd601a0412a4 Mon Sep 17 00:00:00 2001
From: Michael Levin <risujin@fastmail.fm>
Date: Sat, 3 Oct 2009 11:25:14 +0000
Subject: Goodbye wall-walking on entities, we hardly knew ye. On a related
 note, if you'd like to try it uncomment ALIEN_WALLWALK_ENTITIES in
 tremulous.h.

---
 src/game/bg_pmove.c  | 7 ++++++-
 src/game/tremulous.h | 3 +++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/game/bg_pmove.c b/src/game/bg_pmove.c
index ed39a1a3..51e1415c 100644
--- a/src/game/bg_pmove.c
+++ b/src/game/bg_pmove.c
@@ -1911,7 +1911,12 @@ static void PM_GroundClimbTrace( void )
     }
 
     //if we hit something
-    if( trace.fraction < 1.0f && !( trace.surfaceFlags & ( SURF_SKY | SURF_SLICK ) ) )
+    if( trace.fraction < 1.0f && !( trace.surfaceFlags & ( SURF_SKY | SURF_SLICK ) )
+#ifdef ALIEN_WALLWALK_ENTITIES
+      )
+#else
+      && !( trace.entityNum != ENTITYNUM_WORLD && i != 4 ) )
+#endif
     {
       if( i == 2 || i == 3 )
       {
diff --git a/src/game/tremulous.h b/src/game/tremulous.h
index 9dfd7b9a..77275db8 100644
--- a/src/game/tremulous.h
+++ b/src/game/tremulous.h
@@ -358,6 +358,9 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #define ALIEN_CREDITS_PER_FRAG      400
 #define ALIEN_TK_SUICIDE_PENALTY    350
 
+// Uncomment to allow Aliens to wallwalk on any entity (buildables, players, etc)
+//#define ALIEN_WALLWALK_ENTITIES
+
 /*
  * HUMAN weapons
  *
-- 
cgit