playing-cards

A Rust library for playing cards and poker hand evaluation

Playing Cards is a Rust library that implements playing cards, primarily focussing on hand evaluation for games like poker.

Features

Core

Here is a list of types included within the Core package:

• Card
• Carddeck

Poker

Here is a list of type included within the Poker feature:

• Evaluators
  • High Evaluator
  • Low Evaluator (TODO)
  • Omaha Evaluator (TODO)
  • Omaha Hi-Lo Evaluator (TODO)
  • Drawmaha Evaluator (TODO)
  • Drawmaha 0 Evaluator (TODO)
  • Drawmaha 49 Evaluator (TODO)
  • Shortdeck High Evaluator (TODO)

All the evaluators run on the ever-popular 2+2 evalautor, which can evaluate 5 card hands from a given set of 5-7 cards.

Other Things Still TODO

• Create build script to generate 2+2 table (dump the struct into a file using Abomination) (use bincode to encode and decode the Vec table)
• Improve loading the 2+2 table into static memory
  • Issues regarding this involve reading the table for the first time (since that is when lazy_static initializes the lookup table)
  • Right now bincode is a safe approach, but might reconsider to use Abomination if it significantly reduces lazy static runtime.
  • The golden standard would be for the build script to generate a phf Hashmap during compile time, however in practice, this makes compile time unbearably slow due to the size of the Hashmap that gets generated. (Reason is due to the runtime of calcualting perfect hashes.)
• Build the rest of the evaluators
• Documentation