Changed the way to do loading at overworld frame.
Some adjustment around cylinder movement.
Ship door now closes when Pexer leaves from there. I hope it helps the player to realise where he/she came from at first.
Also, overworld's 'lazy control' (pexer keeps going to the direction once the player touched the space around him) is implemented in the ship frame too. The control is still problematic but I don't know how I can improve it.