MonteCarlo evBot

[tostercx]

I have discovered a truly marvelous solution for this, which this margin is too narrow to contain! :D

Seriously tho, I don't think I can/should get it running on Travis as it eats a lot of resources, but my winning algorithm was incredibly simple:

wager = pot * odds * aggression;

// where:
// pot = sum(current wagers),
// odds = odds of winning (0.0-1.0),
// aggression = tweakable constant (1.5 seems stable)

So basically pot*odds = EV, or what I expect to win, surprisingly betting more than that was A LOT more effective (aggression 1.1-4) than betting under (0.5-0.9).

The hard part was calculating the odds. Got the 2+2 evaluator running from:
https://web.archive.org/web/20140625212722/http://codingthewheel.com/archives/poker-hand-evaluator-roundup/#2p2
https://github.com/christophschmalhofer/poker/tree/master/XPokerEval/XPokerEval.TwoPlusTwo

Then I did a bunch of Monte-Carlo simulations - basically dealt every player and the community random cards (except the cards I know ofc) over and over again and counted the win/loose ratio (1k iterations per move seem to be enough). And ta-dah!

Player Standings

1. evBot $161249
2. Wittgenstein $72170
3. edi9999 $39935
4. status3Bot $35575
5. SneakyCharlie $27337
6. FlopASetBot $10068
7. whistle_tips $3666

But, yeah, multiple problems to submit it

• the lookup table for the evaluator is ~130 megs, Travis could probably still pull this tho
• it eats a lot of CPU as it needs ~1k simulations each move
• the Monte-Carlo simulator is currently written in C++ and acts as a TCP server to communicate with the bot, would require some work to compile/run on Travis in the background... also it has windows sockets.
• it obviously breaks the "no-modules" and "one file edit per pull" rules atm

Just wanted to share my solution. Someone might be able to do a similar/simpler version in just JS. Feel free to close this if needed.

[tostercx]

I managed to port it with horrible speed and accuracy! #26
Now I'm just not sure if I'm breaking the rules or not since:

• it still loads a module - hoyle, which is already in the game engine
• I wasn't sure how to get require working properly on the outdated version of node it's running, so I ended up making a tweak in the Travis config

[tostercx]

Did some hackery do get it running on node 0.10. The only remaining problem is if the submission counts although it requires hoyle or should I just copy-paste hoyle's code within my bot to get it submitted?