Thanks a million Mike, that works perfectly. I now have a chance of getting this game up and running by the morning.
One question though. I commented out the super(); after reading the following: The super() call in the constructor class is not required because Flash handles this for you in AS2, and it is handled properly. In AS1 you had to call super() to make sure the superclass' constructor was called. The order for class initialization tended to be a bit odd. That is not the case in AS2. I am fairly new to AS2 so I do not really understand what super() does but its all working fine so far as far as I can see. Can you comment on whether the super() is required? Thanks Paul -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Keesey Sent: 02 November 2006 22:53 To: 'Flashcoders mailing list' Subject: RE: [Flashcoders] Copy Constructor I might do it like this: class mypackage.Connect4State extends Object { public function Connect4State(state:Connect4State) { super(); if (state instanceof Connect4State) { copy(state); } else { board = new Array(); score = new Array(); // Default initialization code. } } public function copy(state:Connect4State):Void { board = state.board.concat(); score = state.score.concat(); } public var board:Array; public var score:Array; } Then you could call the construct with or without a parameter. (Actually, I would never use public variables, but that's another topic....) ― Mike Keesey > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:flashcoders- > [EMAIL PROTECTED] On Behalf Of Paul Steven > Sent: Thursday, November 02, 2006 2:31 PM > To: 'Flashcoders mailing list' > Subject: RE: [Flashcoders] Copy Constructor > > Perhaps it is easier if I explain what I need: > > I am rewriting some Java code into AS2. > > Basically I have a class called Connect4State > > class Connect4State { > > public function Connect4State() { > > // ------------------------- > // Initialize the board array > // -------------------------- > > board = new Array(); > > code goes here > > > // -------------------------- > // Initialize the score array > // -------------------------- > > score = new Array(); > > code goes here > } > > public var board:Array; // A 7 by 6 two dimensional array of > integers representing the state of game > > public var score:Array; // A 2 dimensional array of integers > representing the "score" for the players > > } > > The Java code has a function called a "Copy Constructor" that enables you > to > create new objects that are copies of existing objects. The copy > constructor > for Connect4State just copies the contents of each member variable. It is > necessary to have a copy constructor for Connect4State because the AI > algorithms use temporary state objects a great deal > > This is the "copy constructor" code translated to AS2 > > public function Connect4State(state:Connect4State) { > > // -------------- > // Copy the board > // -------------- > > board = new Array(); > > for (var i:Number = 0; i < 7; i++) { > > board[i] = new Array(); > > for (j:Number = 0; j < 6; j++) { > > board[i][j] = state.board[i][j]; > > } > > } > > > // --------------- > // Copy the scores > // --------------- > > for (var i:Number = 0; i < 2; i++) { > > score = new Array(); > > for (var j:Number = 0; j < winPlaces; j++) { > > score[i][j] = state.score[i][j]; > numPieces = state.numPieces; > } > > } > > > } > > AS2 seems not to like this as I get the following error > > A class must have only one constructor. > public function Connect4State(state:Connect4State) > > Anyone suggest an alternative to this "Copy Constructor"? > > > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Paul > Steven > Sent: 02 November 2006 20:01 > To: 'Flashcoders mailing list' > Subject: [Flashcoders] Copy Constructor > > Hi there > > Is there an equivalent of the Java Copy constructor in Flash AS2? > > Thanks > > Paul > > _______________________________________________ > Flashcoders@chattyfig.figleaf.com > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com > > _______________________________________________ > Flashcoders@chattyfig.figleaf.com > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com _______________________________________________ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com _______________________________________________ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
