update star rating

[Arlind-dev]

the star rating is still outdated, could you update it?

[tybug]

I’d rather not have to keep our sr and pp calc constantly up to date, so I’m thinking of using pyttanko for them instead. Our current methods would remain as a thin wrapper around pyttanko with no breaking changes from a consumer standpoint.

@llllllllll I’m curious if there’s any particular reason you chose to roll your own pp and sr calc instead of using an existing library?

[llllllllll]

The reason I wrote it myself was so that I could do it in a vectorized way, instead of throwing away all the intermediate calculations for each run, you can pass vectors of hit counts and get a vector of results, which is useful for sampling to create score distributions.