zip a wc3 map? w3x file

[Pyro7778]

I tried doing that with 7-zip and the files were the same size, and I even had a few cases where they were bigger lol

[Dekar]

wc3 maps already have a really high entropy, you can't condense the data further without removing information.

edit:
actually it's just a theory that entropy limits the maximum compression... though it seems to be right since no one has proven it wrong so far!

[initialD]

I extract J file from a map and then zip it. The J file became smaller. Since a particular part from a wc3 can be compressed. I think we could actually make the wc3 map smaller, if only we have a software designed for that.
Or
the J file are already compressed when we put it into w3x file?

[Dekar]

the J file are already compressed when we put it into w3x file?

As I told you, MPQ compresses... the entropy increases.
Putting stuff inside a wc3 map is like zipping them.

[risker]

Whats entropy mean?

[Ozzapoo]

CUT THE SPAM.

the J file are already compressed when we put it into w3x file?

Think of it like this. A w3x file is just a fancy type of 'zip' file. And (as you know) a zip file can't be compressed much more when it's already been compressed.

[Dekar]

Entropy is the level of randomness. You can only compress files with low entropy, which will result in a file with high entropy.
As you might now, text files are easy to compress, that's a result of the fact that ascii uses only 7 of 8bit.
So the resulting entropy is really really low. If you compress them you get a file with high entropy using all 8bit.

You may think of entropy as the density of information.