• creatures layer required hardcode check...
• player start/entities placed VALID POSITION!
  (check @ add to world -> issue )

** map coords & other ones are y-down and y-up reversed !!
(error code reversed movement property undefined knows about it )

=> check map y-up or down settings.

** also movement property layers -- visible ! ...

• check every used tile has properties set properly ?
  => movement 'all', 'air', 'all'
  => assert schema on map load?

• positions-with-property only returns non undefined ...but for creatures/entities layer make every set (non-undefined, non-cell )
  have a proper set attributes

• check also each layer only stuff from the specific tileset .... name the tilesets as of the layers ...
  and add from winlu the details I want to use .... also buy other winlu stuff (dungeon? )

• also check walls are placed properly !!! ??? like right alignment up from that and proper corners etc. ?
  (make tests for that ? e.g. test tiledmap shows error on x,y, position )

• entities getting stuck on 1 wide corridors -> use only 2 wide corridors.

• don't use lots of water as flyings dont fly yet and wakeup checks only z-order/ground potential field distance