commit 708b04f172ad3be7ff409c2dc22e396d7fcb6add
Author: devhc <devhc@.(none)>
Date:   Thu Apr 21 21:08:42 2011 +0200

    relax the in-power-range condition a bit for repeaters, to help unstable/imprecise physics

diff --git a/src/game/g_buildable.c b/src/game/g_buildable.c
index 6ae822f..cdd528e 100644
--- a/src/game/g_buildable.c
+++ b/src/game/g_buildable.c
@@ -411,9 +411,10 @@ Return pointer to provider if so.
 It's different from G_FindPower because FindPower for
 providers will find themselves.
 (This doesn't check if power zones overlap)
+The 2nd parameter allows power range seaches to be relaxed/restricted.
 ==================
 */
-gentity_t *G_InPowerZone( gentity_t *self )
+gentity_t *G_InPowerZone( gentity_t *self, float rangeIncr )
 {
   int         i;
   gentity_t   *ent;
@@ -441,9 +442,9 @@ gentity_t *G_InPowerZone( gentity_t *self )
       VectorSubtract( self->s.origin, ent->s.origin, temp_v );
       distance = VectorLength( temp_v );
 
-      if( ent->s.modelindex == BA_H_REACTOR && distance <= REACTOR_BASESIZE )
+      if( ent->s.modelindex == BA_H_REACTOR && distance <= REACTOR_BASESIZE + rangeIncr )
         return ent;
-      else if( ent->s.modelindex == BA_H_REPEATER && distance <= REPEATER_BASESIZE )
+      else if( ent->s.modelindex == BA_H_REPEATER && distance <= REPEATER_BASESIZE + rangeIncr )
         return ent;
     }
   }
@@ -1774,7 +1775,8 @@ void HRepeater_Think( gentity_t *self )
 
   self->powered = G_FindPower( self, qfalse );
 
-  powerEnt = G_InPowerZone( self );
+  // relax the in-range condition a bit to help unstable/imprecise physics
+  powerEnt = G_InPowerZone( self, -1.0f );
   if( powerEnt != NULL )
   {
     // If the repeater is inside of another power zone then suicide
diff --git a/src/game/g_local.h b/src/game/g_local.h
index 1497402..87283d8 100644
--- a/src/game/g_local.h
+++ b/src/game/g_local.h
@@ -808,7 +808,7 @@ qboolean          G_FindPower( gentity_t *self, qboolean searchUnspawned );
 gentity_t         *G_PowerEntityForPoint( const vec3_t origin );
 gentity_t         *G_PowerEntityForEntity( gentity_t *ent );
 gentity_t         *G_RepeaterEntityForPoint( vec3_t origin );
-gentity_t         *G_InPowerZone( gentity_t *self );
+gentity_t         *G_InPowerZone( gentity_t *self, float rangeIncr );
 buildLog_t        *G_BuildLogNew( gentity_t *actor, buildFate_t fate );
 void              G_BuildLogSet( buildLog_t *log, gentity_t *ent );
 void              G_BuildLogAuto( gentity_t *actor, gentity_t *buildable, buildFate_t fate );