anchor.diff:      str: String;
   
       passable, active: Boolean;
  -    mask_conf: TJSONArray;
  +    mask_conf, visit_conf: TJSONArray;
       //anim: TDef;
       width_tiles: Integer;
       height_tiles: Integer;
  
positive.code: 
  { TLegacyObjTemplate }
  
  constructor TLegacyObjTemplate.Create;
  begin
    inherited;
  
negative.code: 
      property IsOverlay: uint8 read FIsOverlay;
  
      property VisitableFromTop: Boolean read IsVisitableFromTop;
    end;
  
    { TMaskResource }
  