Hello! I have participated in the last 2 Trijams, and the experience has been amazing!
I use Pico-8 to develop games, and in TriJam #118 I completed all the code from scratch even though a few portions of code were similar to my TriJam #117 submission. However, Pico-8 development can be quite a bit time intensive when doing everything from scratch since, unlike a standard engine, there is a lot of functionality and sort of "tool" functions you need to manually code in every time for most games. So, to help meet the 3 hour recommended deadline, I am wondering what is the policy on using snippets of code from a previous submission, when it would save a bit of time (e.g., a collision function I coded that basically stays the same between games).
If it is allowed for me to use bits of code I created previously, then I will also set my own policy to only use code that I have used in previous TriJams, as opposed to using bits of code I have written generally in the past but not submitted as part of a TriJam game (this self-policy just feels like it will be more fun). However, if using snippets of code I wrote in previous TriJams is not allowed, then I will continue to write all code from scratch even if it adds quite a bit to the time.
Thank you in advance for answering this question, and I look forward to taking part in every TriJam for the foreseeable future!