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2
README.md
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@ -3,6 +3,8 @@
## Installation & Usage
npm i
npm run build
cp config.example.json config.json
edit config.json

BIN
data/generate_table Executable file
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6
package-lock.json generated
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@ -12,15 +12,9 @@
],
"license": "ISC",
"dependencies": {
"@xpressit/winning-poker-hand-rank": "^0.1.6",
"cuffeo": "^1.2.2"
}
},
"node_modules/@xpressit/winning-poker-hand-rank": {
"version": "0.1.6",
"resolved": "https://registry.npmjs.org/@xpressit/winning-poker-hand-rank/-/winning-poker-hand-rank-0.1.6.tgz",
"integrity": "sha512-l7b8GAKOT6k79qKF/SesCgQLvCjHZkhihf5QhgcL9w3hiya2JeCVyg07TVayoyO8PzDq56MH+yKk5rcbDMYScw=="
},
"node_modules/cuffeo": {
"version": "1.2.2",
"resolved": "https://registry.npmjs.org/cuffeo/-/cuffeo-1.2.2.tgz",

3
package.json
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@ -7,7 +7,8 @@
"x64"
],
"scripts": {
"start": "node ./src/index.mjs"
"start": "node ./src/index.mjs",
"build": "cd ./data && ./generate_table"
},
"author": "Flummi",
"license": "ISC",

1410
src/inc/constants.mjs
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112
src/inc/handranker.mjs
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@ -1,84 +1,44 @@
import constants from './constants.mjs';
import fs from 'node:fs';
export default new class handranker {
rankHands(board, hand) {
let bestHand = this.calcBestHand([...board, ...hand].map(c => this.toCard(c)));
#ranks;
if(bestHand > 6000) bestHand += 2000;
constructor() {
this.#ranks = fs.readFileSync('./data/HandRanks.dat');
this.handtypes = [
"InvalidHand", "HighCard", "Pair",
"TwoPairs", "ThreeOfAKind", "Straight",
"Flush", "FullHouse", "FourOfAKind",
"StraightFlush"
];
this.cards = [''];
for(const cv of [..."23456789TJQKA"])
for(const cs of [..."CDHS"])
this.cards.push(cv + cs);
};
evalHand(cards) {
if(!this.#ranks)
throw new Error("HandRanks.dat not loaded, run 'npm run build' first!");
if(![7,6,5,3].includes(cards.length))
throw new Error("Hand must be 3, 5, 6, or 7 cards");
cards = cards.map(c => this.cards.indexOf(c));
let p = 53;
for(let i = 0; i < cards.length; i++)
p = this.#ranks.readUInt32LE((p + cards[i]) * 4);
if(cards.length == 5 || cards.length == 6)
p = this.#ranks.readUInt32LE(p * 4);
return {
rank: bestHand,
percentage: (9999 - bestHand) / 100,
combination: this.toCombination(bestHand)
handType: p >> 12,
handRank: p & 0x00000fff,
value: p,
handName: this.handtypes[p >> 12]
};
};
toCombination(r) {
if(r > 6185) return 'HighCard';
if(r > 3325) return 'Pair';
if(r > 2467) return 'TwoPairs';
if(r > 1609) return 'ThreeOfAKind';
if(r > 1599) return 'Straight';
if(r > 322) return 'Flush';
if(r > 166) return 'FullHouse';
if(r > 10) return 'FourOfAKind';
return 'StraightFlush';
};
cactusFastRankHand(hand) {
const [c0, c1, c2, c3, c4] = hand;
if((c0 & c1 & c2 & c3 & c4 & 0xf000) !== 0)
return constants.fastFlushes[(c0 | c1 | c2 | c3 | c4) >>> 16];
const r = constants.fastUnique5[(c0 | c1 | c2 | c3 | c4) >>> 16];
if(r)
return r;
let u = 0xe91aaa35 + (((c0 & 0xff) * (c1 & 0xff) * (c2 & 0xff) * (c3 & 0xff) * (c4 & 0xff)) | 0);
u = u ^ (u >>> 16);
u += u << 8;
u ^= u >>> 4;
return constants.hash[((u + (u << 2)) >>> 19) ^ (constants.hashAdjust[(u >>> 8) & 0x1ff] | 0)];
};
calcBestHand(hand) {
if(hand.length === 5)
return this.cactusFastRankHand([hand[0], hand[1], hand[2], hand[3], hand[4]])
if(hand.length === 6) {
const possibleHands = [
[hand[0], hand[1], hand[2], hand[3], hand[4]],
[hand[0], hand[1], hand[2], hand[3], hand[5]],
[hand[0], hand[1], hand[2], hand[4], hand[5]],
[hand[0], hand[1], hand[3], hand[4], hand[5]],
[hand[0], hand[2], hand[3], hand[4], hand[5]],
[hand[1], hand[2], hand[3], hand[4], hand[5]],
];
const sortedHands = possibleHands.map(h => this.cactusFastRankHand(h)).sort();
return sortedHands[0];
}
if(hand.length === 7) {
let r = 0;
let rank = 9999;
for(let i = 0; i < 21; i++) {
const inputHand = [
hand[constants.t7c5[i][0]],
hand[constants.t7c5[i][1]],
hand[constants.t7c5[i][2]],
hand[constants.t7c5[i][3]],
hand[constants.t7c5[i][4]],
];
r = this.cactusFastRankHand(inputHand);
if(r < rank)
rank = r;
}
return rank;
}
throw `Hand ranker doesn't support ${hand.length} cards`;
};
toCard(playingCard) {
const rank = constants.runeToRank[playingCard[0]];
const suit = constants.runeToSuit[playingCard[1]];
if(!suit || rank === undefined)
throw `Invalid playing card: ${playingCard}`;
return ((1 << rank) << 16) | (suit << 12) | (rank << 8) | constants.PRIMES[rank];
};
};

53
src/index.mjs
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@ -6,10 +6,10 @@ const cfg = helper.config;
export const bot = await new cuffeo(cfg.getFull().clients);
export const env = {
gamestate: 'not started, ' + (cfg.get('autojoin') ? 'autojoin' : 'no autojoin'),
gamestate: 'notstarted, ' + (cfg.get('autojoin') ? 'autojoin' : 'no autojoin'), // [notstarted,preflop,flop,turn,river]
hand: false,
board: false,
odds: false,
winchance: false,
joined: false,
callamount: 0,
pot: 0,
@ -28,29 +28,6 @@ bot.on("notice", msg => {
bot.on("message", async e => {
if(e.channel !== cfg.get('channel'))
return;
if(e.message.startsWith(".cards ")) {
let cards = [];
try {
cards = JSON.parse(e.message.slice(7));
} catch(err) {
return e.reply('das ist kein Array du Pflaumennase');
}
const hand = cards.slice(0, 2);
const board = cards.slice(2);
let rank;
try {
rank = handranker.rankHands(board, hand);
} catch(err) {
return e.reply(err);
}
e.reply(JSON.stringify(rank));
return;
}
if(e.message === `.${e.self.me.nickname} help`) {
await e.write(`PRIVMSG ${e.user.nick} I always say hirc schmirc, available commands are:`);
const commands = [
@ -160,7 +137,7 @@ bot.on("message", async e => {
// bot's turn
if(e.message.match(new RegExp(`Current player: ${e.self.me.nickname}( |$)`))) {
let action = 'c'; // default
if(env.gamestate === 'preflop' || !env.odds) { // preflop
if(env.gamestate === 'preflop' || !env.winchance) { // preflop
env.lastaction = action;
return e.reply(action); // checkcall
}
@ -171,40 +148,40 @@ bot.on("message", async e => {
if(env.callamount > env.bank) // not enough money lol
return e.reply(['huan!', 'f']);
if(env.odds < 6500) {
if(helper.rand(5) === 1 && env.callamount < (helper.rand(2, 6) * 10)) { // bad hand, call anyway
if(env.winchance < 6500) {
if(helper.rand(5) === 1 && env.callamount < (helper.rand(6,10) * 10)) { // bad hand, call anyway
action = 'c';
}
else { // bad hand, fold
action = 'f';
}
}
else if(env.odds > 55) { // decent hand, raise
else if(env.winchance > 7000) { // decent hand, raise
if(helper.rand(5) === 1) { // 20%
action = 'r ' + (env.callamount + helper.rand(5) * 10);
}
}
else if(env.odds > 70) { // good hand lol
else if(env.winchance > 15000) { // good hand lol
if(helper.rand(2) === 1) { // 50%
action = 'r ' + (env.callamount + helper.rand(6) * 10);
}
}
else if(env.odds > 85) { // fuck them all
else if(env.winchance > 20000) { // fuck them all
action = 'r ' + (env.callamount + helper.rand(7) * 10);
}
}
else { // checkphase
if(env.odds > 55) { // decend hand, raise
if(env.winchance > 7000) { // decend hand, raise
if(helper.rand(5) === 1) { // 20%
action = 'r ' + (env.callamount + helper.rand(5) * 10);
}
}
else if(env.odds > 70) { // good hand lol
else if(env.winchance > 15000) { // good hand lol
if(helper.rand(2) === 1) { // 50%
action = 'r ' + (env.callamount + helper.rand(6) * 10);
}
}
else if(env.odds > 85) { // fuck them all
else if(env.winchance > 20000) { // fuck them all
action = 'r ' + (env.callamount + helper.rand(7) * 10);
}
}
@ -224,8 +201,8 @@ bot.on("message", async e => {
if(cfg.get('debug'))
e.reply(`${oldstate} -> ${env.gamestate}`);
const rank = handranker.rankHands(env.board, env.hand);
env.odds = rank.percentage;
const rank = handranker.evalHand([...env.board, ...env.hand]);
env.winchance = rank.value;
}
// end of game
@ -244,13 +221,13 @@ bot.on("message", async e => {
}
const oldstate = env.gamestate;
env.gamestate = 'not started, ' + (cfg.get('autojoin') ? 'autojoin' : 'no autojoin');
env.gamestate = 'notstarted, ' + (cfg.get('autojoin') ? 'autojoin' : 'no autojoin');
if(cfg.get('debug'))
e.reply(`${oldstate} -> ${env.gamestate}`);
env.hand = false;
env.board = false;
env.odds = false;
env.winchance = false;
env.joined = false;
env.pot = 0;
env.lastaction = false;