[Michael Jacobson] ~ 2003/04/03

[WikiDbImage ChessOnJornada.jpg]

After reading a Microsoft case study on [.NET] on the [PocketPc] with a chess game (that could also be run on the PC with no code changes - WOW! ;)[http://www.microsoft.com/resources/casestudies/CaseStudy.asp?CaseStudyID=13778].  I remembered [Chess in Tcl] on the Wiki and figured out how to resize and color it, in '''9 lines of Tcl code''', so it looked better on the [PocketPC].  Then I saw in the article, that the author uses a web service to implement online play against a computer.  So I found the service on http://www.xmethods.net [http://www.xmethods.net/ve2/ViewListing.po?key=uuid:D48B0254-670B-E876-FDBC-2D3DBB330E5D] and wrote my first [TclSOAP] interface code ever (took a hour ~ most of the time to read the docs - only '''4 line of Tcl code''').  Then with another couple of lines of code I added online play to [Chess in Tcl]. ''I do so like this language Sam I Am!!!''

There are a couple of problems because Chess in Tcl does not support all the valid moves but this is my first crack at the code.  Please feel free to make changes...
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[LV] so after I add this code, how do I activate it?

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[George Peter Staplin] This code is interesting. Thanks for sharing. :)  

A somewhat related chess RPC project is in the [Tequila] cvs tree.  See: [http://www.equi4.com/cgi-bin/cvsweb/tequila/tequila.vfs/chess.tcl?rev=1.2&content-type=text/x-cvsweb-markup]
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 ### Mike's Add for Smart Network Opponent to Chess in Tcl
 ###  put at the bottom of the Chess in Tcl code ... http://mini.net/tcl/4070
 proc InitChessServer {} {
    package require SOAP
    set uri "urn:BorlandChess-IBorlandChess#XML_GetNextMove"
    set proxy "http://www.danmarinescu.com/WebServices/ChessCGIServer.exe/soap/IBorlandChess"
    #SOAP::configure \
    #    -transport http -proxy host:port \
    #    -headers { "Proxy-Authorization" "Basic XXYYZZ" } 
    SOAP::create XML_GetNextMove \
        -uri $uri -proxy $proxy \
        -params {"Position" "string" "WhiteMovesNext" "boolean" "SearchDepth" "integer"}
    # example from the danmainescu site
    #set a "rnbqkbnrpppppppp[string repeat { } 32]PPPPPPPPRNBQKBNR"
    #XML_GetNextMove $a true 3  ;# returns "e2e4 OK"
 }

 proc GetNextMove {} {
    global game
    set board {}
    foreach row {8 7 6 5 4 3 2 1} {
        foreach col {A B C D E F G H} {
            if {$game($col$row) == "."} {
                append board " "
            } else {
                append board $game($col$row)
            }
        }
    }
    set result [string toupper [XML_GetNextMove $board false 3]]
    return "[string range [lindex $result 0] 0 1]-[string range [lindex $result 0] 2 3]"
 }
 InitChessServer
 after 1000 CheckBoard
 set game(autoMove) 1
 proc CheckBoard {} {
    global game
    if {$game(toMove) == "black" && $game(autoMove)} {
        set ::game(results) [GetNextMove]
        if {$::game(results) != "A1-A1"} {
            puts [uplevel {chess::move game $::game(results)}]
            game drawBoard .c
        } else {
            #some prompt that game is over so you want to play somemore
        }
        set game(autoMove) 0
    }
    return [after 1000 CheckBoard]
 }
 proc MoveInfo {- - -} {
    set ::info "$::game(toMove) to move - [chess::values ::game]"
    set ::game(autoMove) 1
 }


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[Category Games] | [Category Application]