Undergraduate Team Project
4003-420-02
Data Communications and Networks I
Erik Corwin
James Loomis
Winter Quarter 2009
Team Awesome
Our Project is an adaptation of the classic board game, Sorry!
Application Protocol
The network protocol used by our application uses the TCP protocol. We used DataInputStream
and DataOutputStream Java classes, and a Network Proxy pattern, just as we did with the in-class
examples. A character encoded as a byte is used to determine the command. What follows is
determined by the command.
Client to Server Messages
Update 'U' Game State * Update the client with a new game state.
Error 'E' String Report an error to the client. For example, a player
has already been chosen.
Message 'M' String Display a message on the client. For example, the
move the user attempted was invalid, or it is not
their turn.
Server to Client Messages
Join 'J' String, Int Join a named session (or create, if it does not
already exist) as a specific player ID.
Discard 'D' Int, Int Discard a card from a specific hand position
Play 'M' Play ** Display a message on the client. For example, the
move the user attempted was invalid, or it is not
their turn.
List
Sessions
'L'
* The game state is represented as a 2D array of pawns (4x4, integers), an array of cards
(5, integers), and an integer defining which player's turn it currently is.
** A play is represented as a player ID, a card index, and a 2D array, (2x2) consisting of a
pair of { START, END } board spaces.
