1 files changed, 17 insertions, 0 deletions
diff --git a/src/game/world/bsp.h b/src/game/world/bsp.h
index 457bcb9..50e8764 100644
--- a/src/game/world/bsp.h
+++ b/src/game/world/bsp.h
@@ -38,10 +38,20 @@ struct BSP_NODE {
   I32 back;
 };
 
+struct BSP_EDGE {
+  BSP_PLANE plane;
+  U32 face;
+  U8 avgc;
+
+  VEC3 v1, v2;
+};
+
 struct BSP_LEAF {
   U32 first;
   U32 count;
   I32 cluster;
+
+  LIST<BSP_EDGE> edges;
 };
 
 struct BSP_WINDING {
@@ -106,3 +116,10 @@ inline SURF_PROPS* bsp_face_get_props( WORLD_MAP* w, BSP_FACE* s ) {
     map_props_get_special( w, s->propid ) :
     &w->props[s->propid];
 }
+
+inline VEC3 bsp_face_get_normal( const BSP_FACE* f ){
+  const VEC3 v0 = f->verts.data[0].pos;
+  const VEC3 v1 = f->verts.data[1].pos;
+  const VEC3 v2 = f->verts.data[2].pos;
+  return vec_normalize( vec_cross( v1 - v0, v2 - v0 ) );
+}