Hi Jim,
It sounds like you have given this some thought. I think almost any chess
related project is a good candidate for object oriented design. I tend to
favor a simulation approach that tries to model real world objects with
electronic objects. this needs some thought, but some natural objects that
seem to fall out of the problem are Board, Piece with subclasses for King,
Queen etc. and the game record just a list and then some sort of procedural
control or game management function.
Richard
-----Original Message-----
From: Jim
Sent: Monday, June 01, 2015 4:21 AM
To: pythonvis@xxxxxxxxxxxxx
Subject: [pythonvis] Re: possible project for a chess player
Hi,
I have two thoughts here.
First, In past thinking about something like this, I thought about how to
represent the game record and the board. In my mind, the game record was a
list of dictionaries, where entry 0 is the top of the listing, and entries 1
through the last move is white move, black move, white comment and black
comment. If the game would be timed, then I would add entries for white time
and black time.
In my mind, the board was represented as a dictionary with 64 entries. Each
entry was a square designation, and either null or a letter designation for
a pawn or piece. I think I would also have needed to add a square color.
Also, I was doing some preliminary thinking about how to do simple move
validation.
I was considering using the cmd module to make a command line interface for
moves. There would be a move command with starting and ending square.
Parsing algebraic notation was going to come in a second version of the
program.
For example, someone would type move e2e4, and the program would do some
simple checking like Is there a piece on e2? Which piece is it? Whose turn
is it? Is there a piece on e4? Is the piect on e2 a pawn, and is it the
right color?
I was going to use upper case letters as the pieces for white, and lower
case letters as the pieces for black.
In my thinking about how to calculate moves, I was thinking along these
lines. If the person moved along a file, I would simply add two. For
example, e2 e4. If they move to another
rank, I would use the ord function to convert the letter to a number, add 2,
then convert the result back to a letter, then make the move. I think I got
files and ranks mixed up, but you probably get the idea.
When it came to storing the entire game on disk, I was unsure which library
module to use, but I was thinking that it would be the slheelve module.
I was gooing to add the clock as another feature, and exchange the command
line interface for a GUI interface, or simply choose to add a GUI or even
web interface and let the game mechanics be used by the front end.
Thanks.
Jim
If building your own website is holding you back, I can help.
On May 30, 2015, at 6:36 PM, Richard Dinger <rrdinger@xxxxxxxxxx> wrote:List web page is
Hi all,
At the chess group meeting yesterday the subject of space came up.
Write a program that reads a game record, optionally writes a FEN and determines space on either side
Richard
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