Can someone help me? How do I make an element a liquid? Like, what's the code?

WHOA NECRO

Well, go to the wiki. You should know Lua, or, if you want to make a mod, C++.

It should be easy to learn if you know another programming language (if not, it'll be hard).

Try https://powdertoy.co.uk/Wiki/W/Coding-tutorial.html

That's in C++.

For Lua, it's easier, and you don't have to go through compiling and Code::Blocks and all that freaky stuff.

I have no idea how to, or where to direct you to, though.

Try asking around (not me, I don't know Lua-- or C++), everyone's a nerd here.

Well, this is a nice way... >.>