Designing 
- Consider perspectives. 
Example of taking a turn: Monopoly
1. Pre-turn activities
   a. If in Jail, post bail?  
   b If has monopolies, build?
2. Roll the dice
   a. If in jail
        If it is doubles, move # spaces
        Otherwise, if third roll, Pay $50, move # spaces
   b. Else, move # spaces   
3. Act according to the landing space
    if property
      if not owned, consider purchase
        if bought, get deed
        else bank auctions
      else pay rent
... etc.

This is a Player activity, takeTurn(). 
  Where it differs is in implementation between a human and a computer.


Game Controller:

To start game: 
- Game Pieces  assigned
- Money distributed
- Play order established. (Roll die for order)
  
ActivePlayers  0  1  2  3
               Y  N  Y  Y
- While not end of game
   CurrentPlayer=getNextPlayer
   Bankrupt=CurrentPlayer.takeTurn()
     set their indicator to N
   if only one indicator is Y, that player wins


Internet Interaction

Rule: Send as little data as possible.

Each terminal already has complete info on the game environment.

In Monopoly, some initial data must be sent
- Game Pieces
- Die roll for order
- Final player order

What does the player send through the server when they take a turn?
Build string (what, how many, where)
Jail status
Roll value + doubles flag

What gets received when someone else is taking a turn?
If string starts with build code, 
 e.g. 0 means they built, 
      1 means they paid to get out of jail, 
      2 means a die roll follows, that should be followed by a code for whether the roll was doubles 
If it was a 0, then another string will be coming



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AJAX XML Processing
- open command for a request object takes 
   *method (i.e. get or post), 
   *url
   *bool that, if true, means to make the request asynchronously
     > Synchronous requests are dangerous because they cause the main thread to wait for the response.

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Data base

Statements
- Ordinary
- Prepared - has place holders to allow queries with varying parameters

Java-SQL
- executeUpdate
- executeQuery

SQL
- CREATE
- INSERT
- UPDATE
- DROP
Others...