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Added file - script will split png images. MSW 2000-1-15 

git-svn-id: svn+ssh://svn.code.sf.net/p/crossfire/code/trunk/arch@715 282e977c-c81d-0410-88c4-b93c2d0d6712
master
cvs 2001-01-16 05:35:49 +00:00
parent ab290a316b
commit b2725867ea
1 changed files with 69 additions and 0 deletions
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dev/splitter-png.pl 100755
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#!/usr/bin/perl
# File by mwedel@scruz.net to deal with splitting png's.
# Takes any number of files on the command line, but all the split images
# are dumped in the current directory.
# does preserve alpha channel. Tested on skree images.
$PNGSIZE=32;
for ($i=0; $i <= $#ARGV; $i++) {
@name = split(m#/#, $ARGV[$i]);
$source = $name[$#name];
$#name--;
$destdir=join(m#/#, @name);
if ($source =~ /(\w+)\.(\d)(\d)(\d)\.png/ ) {
$base = $1;
$facing = $3;
$animation = $4;
} else {
print STDERR "filename $source does not follow proper naming conventions - don't know how to name files - skipping\n";
next;
}
if (!open(DESC,"pngtopnm $ARGV[$i] | pnmfile |")) {
print STDERR "Could not run pngtopnm $source | pnmfile\n";
next;
}
$desc = <DESC>;
close(DESC);
$desc =~ /(\d+) by (\d+)/;
if ($1 == 0 || $2 == 0) {
print STDERR "File $ARGV[$i] - file not described properly\n";
next;
}
if (($1 % 32) || ($2 % 32)) {
print STDERR "File $ARGV[$i] not an increment of 32x32 size - size is $1x$2\n";
next;
}
$destx = $1/32;
$desty = $2/32;
print "File $ARGV[$i] will be split into $destx X $desty pieces\n";
$piece = 0;
# The order of the for loops of x and y seem non intuitive, but believe
# me, this does left to right, top to bottom (ie, as you read and
# english language book) in terms of part numbering.
for ($y=0; $y < $desty; $y++) {
for ($x=0; $x < $destx; $x++) {
$piece ++;
# Deal with naming convention. piece 10 should be A, A ascii
# code starts at 65.
if ($piece > 9 ) {
$np = chr($piece + 55);
} else {
$np = $piece;
}
$cutx = $x * 32;
$cuty = $y * 32;
system("pngtopnm -alpha $ARGV[$i] | pnmcut -left $cutx -top $cuty -width 32 -height 32 > /tmp/alpha.$$");
system("pngtopnm $ARGV[$i] | pnmcut -left $cutx -top $cuty -width 32 -height 32 > /tmp/png.$$");
system("pnmtopng -alpha /tmp/alpha.$$ /tmp/png.$$ > $base.$np$facing$animation.png");
}
}
# do a little cleanup
unlink("/tmp/alpha.$$");
unlink("/tmp/png.$$");
}