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rewrote chess display engine in custom tags!
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Tom Ritchford
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May 28, 2001 02:38 PDT
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<http://www.solvechess.com/boardTest.jsp?name=0/1/2>
compare this with the servlet:
<http://www.solvechess.com/chess>
I stuck to my original plan and it came out well.
There was a little random logic, which I hope to hide
in the <chess:represent> tag that I ran out of energy
to write tonight/this morning.
Here's the source to the page... it's very short.
The custom tags are pretty easy too...
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boardTest.jsp
<%@ taglib uri="/editEverything" prefix="ee" %>
<%@ taglib uri="/chess" prefix="chess" %>
<%@ page import="com.editev.chess.*" %>
<html>
<head>
<title>The complete game of chess.</title>
<link rel="stylesheet" type="text/css" href="chess.css">
</head>
<body>
<ee:parameter id="positionName" name="name">
<% Move move = new Move(); %>
<chess:position id="position" name="positionName">
<!-- now we make a format-independent table. -->
<ee:table pad="4">
<ee:for id="row" count="8">
<ee:row>
<ee:for id="column" count="8">
<%
move.row = (byte) row.intValue();
move.column = (byte) column.intValue();
byte pieceIndex = position.getPieceIndex( move );
String piece = GameHTML.PIECE_HTML[ pieceIndex ];
boolean pieceIsWhite = Chess.White.is( pieceIndex );
boolean squareIsWhite = (move.row + move.column)%2 == 0;
String style = (pieceIsWhite ? "white" : "black") +
"On" + (squareIsWhite ? "White" : "Black");
%>
<ee:entry class="<%= style %>">
<%= piece %>
</ee:entry>
</ee:for>
</ee:row>
</ee:for>
</ee:table>
</chess:position>
</ee:parameter>
</body>
off to a well-deserved sleep, I think!
/t
...electronic a cappella madness <http://volectrix.com>.........
...extreme internet radio <http://extremeNY.com/radio>...
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