Please Explain This Code

I don't know what this even means?! Ashley rexrainbow do you know? Where i can learn to program like that? Source: Construct2 Physics Plugin

Code in javascript & use google closure compiler service : http://closure-compiler.appspot.com/home

You're looking at the asm.js compiled version of the Box2d physics engine, which was machine-compiled from the source C++ code, so it's not going to make much sense.

You're looking at the asm.js compiled version of the Box2d physics engine, which was machine-compiled from the source C++ code, so it's not going to make much sense.

Oh , then this was written in C++ and then compiled to JavaScript? If so can I do that in Java too?

Naji - unless you already have some files in java and want them in javascript... I would recommend just writing the scripts you need in javascript. Emscripten doesn't work perfectly and tracking down bugs is a pain. Also, you have to spend alot of time familiarizing yourself to the way the results are outputed. Also, I have no clue if it works on java to javascript.

TLDR - it probably isn't worth your time, unless you have a file that = box2d in complexity and need a performance boost.

Naji - Also, unbeknownst to most here is that the file you are looking at is broken in a small but huge way, thanks to emscripten. The construct 2 implementation of box2d is far from feature complete and so avoids the bugs...