are you using LUA or are you compiling the source

First, that's compiling the source. 

Second, in the update function, maybe if its neighbor elements include OXYG or LOXY or SLTW, it has a 1/100 chance to turn the tmp of the particle up for each frame, and a 1/25 chance to raise its tmp by 1 if the copper particle's tmp next to it is bigger. And in the graphics function, if the ctype is not wax, if the tmp is 1, change the color to the first level of oxidation, for a tmp of 2, change it to the second color of oxidation, etc. And then when it's at 1353K, just change the tmp to 0.

It's not hard to do if you know what you're doing. If you don't, I recommend first learning how to use C++, compile C++, and use TPT's functions.

@IlikeUssr (View Post)

 I'll do what I can, but it might not be too efficient. I *very* rarely use C++ for TPT mods, simply because of the compiling time and how hard it is to distribute and store.

1/13/21 (Editing so that I don't add an unneeded piece): Looks like your mod idea and my lua script used the same color!