#!/usr/bin/perl -w
#
# Announce a move from Crafty using some soundfiles
#

# The program used for Sound Output
my $playprg   = "/usr/bin/esdplay";

# Where the sound files are located
my $soundpath = "/usr/share/crafty/sound";
# Which language to use (each supported language is in a separate
# subdir of $soundpath)
my $language  = "english";

# The move sent by crafty
my $move      = $ARGV[0];

# Set soundpath to the correct language
$soundpath = $soundpath . "/" . $language;

# First check some specials
if (($move =~ /O-O/) || ($move eq "Stalemate") ||
    ($move eq "Drawaccept") || ($move eq "Drawoffer") ||
    ($move eq "Resign") || ($move eq "Checkmate")) {
  system("$playprg $soundpath/$move.wav");
}
# Handle all normal moves. All that needs to be done is announce
# each character sent by crafty alone. Set some pause beteween each
# char for clearer understanding.
#
# NOTE 1: Crafty uses short notation, so short notation is
# announced. For long notation announcements the crafty engine has
# to be hacked and pgn output as well as logging would get broken.
#
# NOTE 2: There has to exist a sound file named for each row,
# column and piece. That is there has to be sound files like a.wav,
# 1.wav, R.wav and so on. One can easily rename the files
# distributed for free eg. at the "Arena" Website
# (http://www.playwitharena.com). Soundfiles from Fritz are not
# suitable, at the moment, but the script can easily be rewritten
# to handle them as well.
else {
  for (my $i=0; $i<length($move); $i++) {
    my $char = substr $move, $i, 1;
    if ($char =~ /[^=]/) {
      if ($char =~ /x/) {
        system("$playprg $soundpath/x.wav");
        system("usleep 400000");
      }
      elsif ($char =~ /#/) {
        system("$playprg $soundpath/Checkmate.wav");
      }
      elsif ($char =~ /\+/) {
        system("$playprg $soundpath/Check.wav");
      }
      else {
        system("$playprg $soundpath/$char".".wav");
      }
    }
  }
}