diff -r 428a194e3e59 -r a59acc683080 Source/Game.h
--- a/Source/Game.h	Sun Mar 16 15:06:47 2008 -0700
+++ b/Source/Game.h	Thu May 29 15:04:06 2008 -0700
@@ -27,6 +27,7 @@
 /** Abstract superclass. Keeps track of the rules and turns of a game. */
 @interface Game : NSObject
 {
+    NSString *_uniqueID;
     GGBLayer *_board;
     NSArray *_players;
     Player *_currentPlayer, *_winner;
@@ -35,6 +36,10 @@
     unsigned _currentTurn;
 }
 
+/** Returns the name used to identify this game in URLs.
+     (By default it just returns the class name with the "Game" suffix removed.) */
++ (NSString*) identifier;
+
 /** Returns the human-readable name of this game.
     (By default it just returns the class name with the "Game" suffix removed.) */
 + (NSString*) displayName;
@@ -49,9 +54,17 @@
 @property unsigned currentTurn;
 @property (readonly) BOOL isLatestTurn;
 
+
+/** A globally-unique string assigned to this game instance, to help networked players identify it. */
+@property (readonly) NSString* uniqueID;
+
 - (BOOL) animateMoveFrom: (BitHolder*)src to: (BitHolder*)dst;
 
 
+- (id) initWithUniqueID: (NSString*)uniqueID;
+- (id) init;
+
+
 // Methods for subclasses to implement:
 
 /** Designated initializer. After calling the superclass implementation,
@@ -87,8 +100,11 @@
     Default implementation returns nil. */
 - (Player*) checkForWinner;
 
+/** A string describing the current state of the game (the positions of all pieces,
+    orderings of cards, player scores, ... */
+@property (copy) NSString* stateString;
 
-@property (copy) NSString* stateString;
+/** Add a move to the game based on the contents of the string. */
 - (BOOL) applyMoveString: (NSString*)move;
 
 
@@ -111,7 +127,7 @@
 
 
 /** A mostly-passive object used to represent a player. */
-@interface Player : NSObject
+@interface Player : NSObject <NSCoding>
 {
     Game *_game;
     NSString *_name;