Just assign the split data to a hash:

my %hash=split /\\/, $line;
print $hash{mesh_0};
[download]

That won't quite work with the above line, because it has a prepending '\' so your keys and values are out of sync, but it's a start...

If you really want the variable named like $player_0, $mesh_0 etc., then you can mess around with symbolic references (but only if you know why they are bad...) I think that a hash ought to do fine though!

Cheerio!
Osfameron