client: add a check for qbsp2 extensions

Author: a1batross

source_code/cl_dll/cl_util.h

@@ -187,5 +187,5 @@ void	QuaternionMatrix( vec4_t quaternion, float (*matrix)[4] );
 void	QuaternionSlerp( vec4_t p, vec4_t q, float t, vec4_t qt );
 void	AngleQuaternion( float *angles, vec4_t quaternion );
 
-struct mleaf_s *Mod_PointInLeaf( Vector p, struct mnode_s *node );
+struct mleaf_s *Mod_PointInLeaf( Vector p, struct mnode_s *node, struct model_s *mod );
 bool IsXashFWGS();

source_code/cl_dll/util.cpp

@@ -418,13 +418,13 @@ Mod_PointInLeaf
 
 ==================
 */
-mleaf_t *Mod_PointInLeaf( Vector p, mnode_t *node )
+mleaf_t *Mod_PointInLeaf( Vector p, mnode_t *node, model_t *mod )
 {
 	while( 1 )
 	{
 		if( node->contents < 0 )
 			return (mleaf_t *)node;
-		node = node->children[PlaneDiff( p, node->plane ) < 0];
+		node = node_child( node, PlaneDiff( p, node->plane ) < 0, mod );
 	}
 
 	// never reached

source_code/cl_dll/view.cpp

@@ -480,7 +480,7 @@ void V_UpdatePalette (struct ref_params_s *pparams)
 	// set contents color
 	if (world != NULL && world->model != NULL)
 	{
-		mleaf_t *viewleaf = Mod_PointInLeaf( pparams->vieworg, world->model->nodes );
+		mleaf_t *viewleaf = Mod_PointInLeaf( pparams->vieworg, world->model->nodes, world->model );
 
 		if (viewleaf != NULL)
 			V_SetContentsColor (viewleaf->contents);