c2s:
ppos {x,y}
	this player has moved to position x,y

settile {q,r,tile}
	set tile at H(q,r) to tile (currently boolean)

s2c:
playerinfopart:: {id,x,y,color:[r,g,b]}

join {pl=playerinfopart}
 a player has joined. also sent on connection for each existing player

you {pl=playerinfopart}
	sent on connection to tell client about its own player

leave {id}
	player with id id has left

move {id,x,y}
	player with id id has moved to (x,y)

chunk {tiles=[array of 128*128 booleans]}
 chunk has data d. one day changes will exist and also multiple chunks will exist and also more than 2 tile types will exist

settile {q,r,tile} 
	tile at H(q,r) was set to tile (currently boolean)