Oh man. Okay, so str_cpy still works. But! Lite-c is case sensitive. Perhaps you wrote "Str_cpy", or "str_Cpy", or any such things? Basically, make sure that "str_cpy" is all small letters.

Possible other thing: If you use the string of a text-object ("mytext.string", that kinda stuff), then please note that the structure of texts changed when we went from C-Script to Lite-C, and you'd have to replace that with "(mytext.pstring)[0]".

Or perhaps it's something entirely different!
But this is as far as we can help you given the rather cryptic original post. "seems to not work" is, sadly, rather difficult to pin down. What's the error message, and what's your code?



I'll just assume that your assumption is true and 2) will solve itself after we took care of 1). As far as 3) is concerned, I cannot help - haven't used the physics engines.