Mostly working spatical map with 2 level collision/space structure. Not the best implementation but this is the idea.

gui/main_ui.cpp

@@ -31,7 +31,8 @@ namespace gui {
   }
 
   DinkyECS::Entity MainUI::camera_aim() {
-    if($level.collision->occupied($rayview.aiming_at)) {
+    // what happens if there's two things at that spot
+    if($level.collision->something_there($rayview.aiming_at)) {
       return $level.collision->get($rayview.aiming_at);
     } else {
       return 0;