more collision improv

1 files changed, 10 insertions, 0 deletions

diff --git a/src/game/world/bsp.h b/src/game/world/bsp.h
index 8892108..3b84e07 100644
--- a/src/game/world/bsp.h
+++ b/src/game/world/bsp.h
@@ -125,6 +125,16 @@ inline VEC3 bsp_face_get_normal( BSP_FACE* f ){
   return vec_normalize( vec_cross( v1 - v0, v2 - v0 ) );
 }
 
+inline U8 bsp_face_is_axis_aligned( BSP_FACE* f ) {
+  VEC3 n = bsp_face_get_normal( f );
+  for( U32 i = 0; i < 3; ++i ) {
+    if( n[i] && fabsf( n[i] ) != 1.f )
+      return 0;
+  }
+
+  return 1;
+}
+
 inline void bsp_face_calc_extents( BSP_FACE* f ) {
   VEC3 mins{ +INFINITY, +INFINITY, +INFINITY }, maxs{ -INFINITY, -INFINITY, -INFINITY };
   for( U32 i = 0; i < f->verts.size; ++i ) {