MAZE_MAGIC     0x6D7A
  
  ADD_PLAYER     0x4E45
  
  HUNTER         0x4855
  
  ILLEGAL_MOV    0xF000
  PLAYER_MOV     0x4D4F
  PLAYER_DC      0x4443
  PLAYER_DIE     0x4B4F
  PLAYER_WIN     0x5749

  SRV_BUSY       0xEEEE

  MAX_PLAYERNUM  32

  all the magic numbers will be uint16_t...

  TYPES
  unsigned short    magical instruction things
  short             Maze player locations (x, y)
  unsigned char     Player number

  char              Player name, SHOULD BE 32 BYTES (pad with zeroes)

  unsigned int      sizes of things

  
  Server: is TCP

  handles 32 players max

  - If the game already started and someone tries to connect, send SRV_BUSY
    and close the connection...

  send the maze for the client.
  * send MAZE_MAGIC

  * send unsigned int, data width of maze (in unsigned chars) (MAZE.w)

  * send unsigned int, size of maze in bytes
  * send the whole maze byte by byte
  * wait for MAZE_MAGIC packet
  
  expect player name right after sending the maze (the player chooses name
  before connecting)
  * receive null terminated string

  send current client player's number

  
  add players to the connecting pre-game screen as they connect (as well as

  the ones connected before this player, if any, AND the current player)

  * send ADD_PLAYER
  * send unsigned char player number

  * send short X, Y in maze

  * send null-terminated string for the name
  
  Choose hunter (which means the game begins)
  * send HUNTER
  * send the unsigned char value of the hunter player
  
  Player updates
  ==============

  from server - other players to the client:

  
  A player MOVES on the maze
  * PLAYER_MOV
  * unsigned char pnum, short x, short y

  > Allow players to walk through each other???

  
  A player wins
  * send PLAYER_WIN
  * send unsigned char pnum
  
  Player disconnects/loses/get hunted

  * send PLAYER_DC for disconnect
  * send PLAYER_DIE for lose

  * send unsigned char pnum

  > clear the player from the screen

  
  from the client to the server:
  
  Move
  * PLAYER_MOV
  * short x, short y
  * if the move is illegal, send ILLEGAL_MOV and don't send move update to
    players