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these parts seems reliable enough for now

from lobby, always
from game, if game is empty

since resize and bounds checks work (for a whole while) now
it is not necessary anymore to assume an arbitrary default size

clear to erase names of no longer present players

Update iterates the player map -> needs lock

avoid artifacts when switching contexts

use to keep track of:
present players and order in lobby
connection status in game

windowSizeLoop does not access any variables that are altered during a
reconnect. therefore it can continue to run uninterrupted

keepalive takes care of terminating stale connections so we do not have to
implement a ping loop.

inputloop now accesses player reference. no input loop for a player
must be running when that player is being modified

artifact from previous Place -> *Place refactor

coordinates rotations and pieces are now taken from
the place or state parameters. this fixes an issue of
tokens on a board place being shown on the currently
to-be-placed piece.

prepare for render getting an optional *Place parameter.
optional parameter must be pointer to be able to detect
whether it is present.
for consistency make everything take pointers

bounds check must be done inside the lock.. duh

read the variable after assigning, not before...

farm require neighboorhood information between farms and cities,
which is not yet encoded.
end game scoring is not yet implemented

pennants, inns, cathedrals

detecting adjacent parts of a structure and lack thereof will be used
to tell whether a structure is completed

use breaks instead of weird empty if blocks

impossible means the piece can not be placed on the
current board due to collisions in all free places

free means adjacent to another piece but not containing a piece

tokens are t if possible, not i

actually remove start piece from pieceOrder