You can create your own cats, but if you don't want to do that, you can just leave your clan by itself and see what happens. Sometimes elders die, and sometimes apprentices are made into warriors. The story line IS on a loop, so don't complain to me about how the same things keep happening. Anyway, have fun and keep coding!
Forest backdrop from google. All code by me, @tabbycat81 Fun fact: This project contains 512 blocks of code. I THINK i fixed all the bugs. Tell me in the comments. I know about the bug where the deputy doesn't become leader, and I went through the code lots of times without finding the problem, so if you know, please tell me.