| /* |
| * Copyright (C) 2017 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| "use strict"; |
| |
| |
| class CardDeck |
| { |
| constructor() |
| { |
| this.newDeck(); |
| } |
| |
| newDeck() |
| { |
| // Make a shallow copy of a new deck |
| this._cards = CardDeck._newDeck.slice(0); |
| } |
| |
| shuffle() |
| { |
| this.newDeck(); |
| |
| for (let index = 52; index !== 0;) { |
| // Select a random card |
| let randomIndex = Math.floor(Math.random() * index); |
| index--; |
| |
| // Swap the current card with the random card |
| let tempCard = this._cards[index]; |
| this._cards[index] = this._cards[randomIndex]; |
| this._cards[randomIndex] = tempCard; |
| } |
| } |
| |
| dealOneCard() |
| { |
| return this._cards.shift(); |
| } |
| |
| static cardRank(card) |
| { |
| // This returns a numeric value for a card. |
| // Ace is highest. |
| |
| let rankOfCard = card.codePointAt(0) & 0xf; |
| if (rankOfCard == 0x1) // Make Aces higher than Kings |
| rankOfCard = 0xf; |
| |
| return rankOfCard; |
| } |
| |
| static cardName(card) |
| { |
| if (typeof(card) == "string") |
| card = card.codePointAt(0); |
| return this._rankNames[card & 0xf]; |
| } |
| } |
| |
| CardDeck._rankNames = [ |
| "", "Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "", "Queen", "King" |
| ]; |
| |
| CardDeck._newDeck = [ |
| // Spades |
| "\u{1f0a1}", "\u{1f0a2}", "\u{1f0a3}", "\u{1f0a4}", "\u{1f0a5}", |
| "\u{1f0a6}", "\u{1f0a7}", "\u{1f0a8}", "\u{1f0a9}", "\u{1f0aa}", |
| "\u{1f0ab}", "\u{1f0ad}", "\u{1f0ae}", |
| // Hearts |
| "\u{1f0b1}", "\u{1f0b2}", "\u{1f0b3}", "\u{1f0b4}", "\u{1f0b5}", |
| "\u{1f0b6}", "\u{1f0b7}", "\u{1f0b8}", "\u{1f0b9}", "\u{1f0ba}", |
| "\u{1f0bb}", "\u{1f0bd}", "\u{1f0be}", |
| // Clubs |
| "\u{1f0d1}", "\u{1f0d2}", "\u{1f0d3}", "\u{1f0d4}", "\u{1f0d5}", |
| "\u{1f0d6}", "\u{1f0d7}", "\u{1f0d8}", "\u{1f0d9}", "\u{1f0da}", |
| "\u{1f0db}", "\u{1f0dd}", "\u{1f0de}", |
| // Diamonds |
| "\u{1f0c1}", "\u{1f0c2}", "\u{1f0c3}", "\u{1f0c4}", "\u{1f0c5}", |
| "\u{1f0c6}", "\u{1f0c7}", "\u{1f0c8}", "\u{1f0c9}", "\u{1f0ca}", |
| "\u{1f0cb}", "\u{1f0cd}", "\u{1f0ce}" |
| ]; |
| |
| class Hand |
| { |
| constructor() |
| { |
| this.clear(); |
| } |
| |
| clear() |
| { |
| this._cards = []; |
| this._rank = 0; |
| } |
| |
| takeCard(card) |
| { |
| this._cards.push(card); |
| } |
| |
| score() |
| { |
| // Sort highest rank to lowest |
| this._cards.sort((a, b) => { |
| return CardDeck.cardRank(b) - CardDeck.cardRank(a); |
| }); |
| |
| let handString = this._cards.join(""); |
| |
| let flushResult = handString.match(Hand.FlushRegExp); |
| let straightResult = handString.match(Hand.StraightRegExp); |
| let ofAKindResult = handString.match(Hand.OfAKindRegExp); |
| |
| if (flushResult) { |
| if (straightResult) { |
| if (straightResult[1]) |
| this._rank = Hand.RoyalFlush; |
| else |
| this._rank = Hand.StraightFlush |
| } else |
| this._rank = Hand.Flush; |
| |
| this._rank |= CardDeck.cardRank(this._cards[0]) << 16 | CardDeck.cardRank(this._cards[1]) << 12; |
| } else if (straightResult) |
| this._rank = Hand.Straight | CardDeck.cardRank(this._cards[0]) << 16 | CardDeck.cardRank(this._cards[1]) << 12; |
| else if (ofAKindResult) { |
| // When comparing lengths, a matched unicode character has a length of 2. |
| // Therefore expected lengths are doubled, e.g a pair will have a match length of 4. |
| if (ofAKindResult[0].length == 8) |
| this._rank = Hand.FourOfAKind | CardDeck.cardRank(this._cards[0]); |
| else { |
| // Found pair or three of a kind. Check for two pair or full house. |
| let firstOfAKind = ofAKindResult[0]; |
| let remainingCardsIndex = handString.indexOf(firstOfAKind) + firstOfAKind.length; |
| let secondOfAKindResult; |
| if (remainingCardsIndex <= 6 |
| && (secondOfAKindResult = handString.slice(remainingCardsIndex).match(Hand.OfAKindRegExp))) { |
| if ((firstOfAKind.length == 6 && secondOfAKindResult[0].length == 4) |
| || (firstOfAKind.length == 4 && secondOfAKindResult[0].length == 6)) { |
| let threeOfAKindCardRank; |
| let twoOfAKindCardRank; |
| if (firstOfAKind.length == 6) { |
| threeOfAKindCardRank = CardDeck.cardRank(firstOfAKind.slice(0,2)); |
| twoOfAKindCardRank = CardDeck.cardRank(secondOfAKindResult[0].slice(0,2)); |
| } else { |
| threeOfAKindCardRank = CardDeck.cardRank(secondOfAKindResult[0].slice(0,2)); |
| twoOfAKindCardRank = CardDeck.cardRank(firstOfAKind.slice(0,2)); |
| } |
| this._rank = Hand.FullHouse | threeOfAKindCardRank << 16 | threeOfAKindCardRank < 12 | threeOfAKindCardRank << 8 | twoOfAKindCardRank << 4 | twoOfAKindCardRank; |
| } else if (firstOfAKind.length == 4 && secondOfAKindResult[0].length == 4) { |
| let firstPairCardRank = CardDeck.cardRank(firstOfAKind.slice(0,2)); |
| let SecondPairCardRank = CardDeck.cardRank(secondOfAKindResult[0].slice(0,2)); |
| let otherCardRank; |
| // Due to sorting, the other card is at index 0, 4 or 8 |
| if (firstOfAKind.codePointAt(0) == handString.codePointAt(0)) { |
| if (secondOfAKindResult[0].codePointAt(0) == handString.codePointAt(4)) |
| otherCardRank = CardDeck.cardRank(handString.slice(8,10)); |
| else |
| otherCardRank = CardDeck.cardRank(handString.slice(4,6)); |
| } else |
| otherCardRank = CardDeck.cardRank(handString.slice(0,2)); |
| |
| this._rank = Hand.TwoPair | firstPairCardRank << 16 | firstPairCardRank << 12 | SecondPairCardRank << 8 | SecondPairCardRank << 4 | otherCardRank; |
| } |
| } else { |
| let ofAKindCardRank = CardDeck.cardRank(firstOfAKind.slice(0,2)); |
| let otherCardsRank = 0; |
| for (let card of this._cards) { |
| let cardRank = CardDeck.cardRank(card); |
| if (cardRank != ofAKindCardRank) |
| otherCardsRank = (otherCardsRank << 4) | cardRank; |
| } |
| |
| if (firstOfAKind.length == 6) |
| this._rank = Hand.ThreeOfAKind | ofAKindCardRank << 16 | ofAKindCardRank << 12 | ofAKindCardRank << 8 | otherCardsRank; |
| else |
| this._rank = Hand.Pair | ofAKindCardRank << 16 | ofAKindCardRank << 12 | otherCardsRank; |
| } |
| } |
| } else { |
| this._rank = 0; |
| for (let card of this._cards) { |
| let cardRank = CardDeck.cardRank(card); |
| this._rank = (this._rank << 4) | cardRank; |
| } |
| } |
| } |
| |
| get rank() |
| { |
| return this._rank; |
| } |
| |
| toString() |
| { |
| return this._cards.join(""); |
| } |
| } |
| |
| Hand.FlushRegExp = new RegExp("([\u{1f0a1}-\u{1f0ae}]{5})|([\u{1f0b1}-\u{1f0be}]{5})|([\u{1f0c1}-\u{1f0ce}]{5})|([\u{1f0d1}-\u{1f0de}]{5})", "u"); |
| |
| Hand.StraightRegExp = new RegExp("([\u{1f0a1}\u{1f0b1}\u{1f0d1}\u{1f0c1}][\u{1f0ae}\u{1f0be}\u{1f0de}\u{1f0ce}][\u{1f0ad}\u{1f0bd}\u{1f0dd}\u{1f0cd}][\u{1f0ab}\u{1f0bb}\u{1f0db}\u{1f0cb}][\u{1f0aa}\u{1f0ba}\u{1f0da}\u{1f0ca}])|[\u{1f0ae}\u{1f0be}\u{1f0de}\u{1f0ce}][\u{1f0ad}\u{1f0bd}\u{1f0dd}\u{1f0cd}][\u{1f0ab}\u{1f0bb}\u{1f0db}\u{1f0cb}][\u{1f0aa}\u{1f0ba}\u{1f0da}\u{1f0ca}][\u{1f0a9}\u{1f0b9}\u{1f0d9}\u{1f0c9}]|[\u{1f0ad}\u{1f0bd}\u{1f0dd}\u{1f0cd}][\u{1f0ab}\u{1f0bb}\u{1f0db}\u{1f0cb}][\u{1f0aa}\u{1f0ba}\u{1f0da}\u{1f0ca}][\u{1f0a9}\u{1f0b9}\u{1f0d9}\u{1f0c9}][\u{1f0a8}\u{1f0b8}\u{1f0d8}\u{1f0c8}]|[\u{1f0ab}\u{1f0bb}\u{1f0db}\u{1f0cb}][\u{1f0aa}\u{1f0ba}\u{1f0da}\u{1f0ca}][\u{1f0a9}\u{1f0b9}\u{1f0d9}\u{1f0c9}][\u{1f0a8}\u{1f0b8}\u{1f0d8}\u{1f0c8}][\u{1f0a7}\u{1f0b7}\u{1f0d7}\u{1f0c7}]|[\u{1f0aa}\u{1f0ba}\u{1f0da}\u{1f0ca}][\u{1f0a9}\u{1f0b9}\u{1f0d9}\u{1f0c9}][\u{1f0a8}\u{1f0b8}\u{1f0d8}\u{1f0c8}][\u{1f0a7}\u{1f0b7}\u{1f0d7}\u{1f0c7}][\u{1f0a6}\u{1f0b6}\u{1f0d6}\u{1f0c6}]|[\u{1f0a9}\u{1f0b9}\u{1f0d9}\u{1f0c9}][\u{1f0a8}\u{1f0b8}\u{1f0d8}\u{1f0c8}][\u{1f0a7}\u{1f0b7}\u{1f0d7}\u{1f0c7}][\u{1f0a6}\u{1f0b6}\u{1f0d6}\u{1f0c6}][\u{1f0a5}\u{1f0b5}\u{1f0d5}\u{1f0c5}]|[\u{1f0a8}\u{1f0b8}\u{1f0d8}\u{1f0c8}][\u{1f0a7}\u{1f0b7}\u{1f0d7}\u{1f0c7}][\u{1f0a6}\u{1f0b6}\u{1f0d6}\u{1f0c6}][\u{1f0a5}\u{1f0b5}\u{1f0d5}\u{1f0c5}][\u{1f0a4}\u{1f0b4}\u{1f0d4}\u{1f0c4}]|[\u{1f0a7}\u{1f0b7}\u{1f0d7}\u{1f0c7}][\u{1f0a6}\u{1f0b6}\u{1f0d6}\u{1f0c6}][\u{1f0a5}\u{1f0b5}\u{1f0d5}\u{1f0c5}][\u{1f0a4}\u{1f0b4}\u{1f0d4}\u{1f0c4}][\u{1f0a3}\u{1f0b3}\u{1f0d3}\u{1f0c3}]|[\u{1f0a6}\u{1f0b6}\u{1f0d6}\u{1f0c6}][\u{1f0a5}\u{1f0b5}\u{1f0d5}\u{1f0c5}][\u{1f0a4}\u{1f0b4}\u{1f0d4}\u{1f0c4}][\u{1f0a3}\u{1f0b3}\u{1f0d3}\u{1f0c3}][\u{1f0a2}\u{1f0b2}\u{1f0d2}\u{1f0c2}]|[\u{1f0a1}\u{1f0b1}\u{1f0d1}\u{1f0c1}][\u{1f0a5}\u{1f0b5}\u{1f0d5}\u{1f0c5}][\u{1f0a4}\u{1f0b4}\u{1f0d4}\u{1f0c4}][\u{1f0a3}\u{1f0b3}\u{1f0d3}\u{1f0c3}][\u{1f0a2}\u{1f0b2}\u{1f0d2}\u{1f0c2}]", "u"); |
| |
| Hand.OfAKindRegExp = new RegExp("(?:[\u{1f0a1}\u{1f0b1}\u{1f0d1}\u{1f0c1}]{2,4})|(?:[\u{1f0ae}\u{1f0be}\u{1f0de}\u{1f0ce}]{2,4})|(?:[\u{1f0ad}\u{1f0bd}\u{1f0dd}\u{1f0cd}]{2,4})|(?:[\u{1f0ab}\u{1f0bb}\u{1f0db}\u{1f0cb}]{2,4})|(?:[\u{1f0aa}\u{1f0ba}\u{1f0da}\u{1f0ca}]{2,4})|(?:[\u{1f0a9}\u{1f0b9}\u{1f0d9}\u{1f0c9}]{2,4})|(?:[\u{1f0a8}\u{1f0b8}\u{1f0d8}\u{1f0c8}]{2,4})|(?:[\u{1f0a7}\u{1f0b7}\u{1f0d7}\u{1f0c7}]{2,4})|(?:[\u{1f0a6}\u{1f0b6}\u{1f0d6}\u{1f0c6}]{2,4})|(?:[\u{1f0a5}\u{1f0b5}\u{1f0d5}\u{1f0c5}]{2,4})|(?:[\u{1f0a4}\u{1f0b4}\u{1f0d4}\u{1f0c4}]{2,4})|(?:[\u{1f0a3}\u{1f0b3}\u{1f0d3}\u{1f0c3}]{2,4})|(?:[\u{1f0a2}\u{1f0b2}\u{1f0d2}\u{1f0c2}]{2,4})", "u"); |
| |
| Hand.RoyalFlush = 0x900000; |
| Hand.StraightFlush = 0x800000; |
| Hand.FourOfAKind = 0x700000; |
| Hand.FullHouse = 0x600000; |
| Hand.Flush = 0x500000; |
| Hand.Straight = 0x400000; |
| Hand.ThreeOfAKind = 0x300000; |
| Hand.TwoPair = 0x200000; |
| Hand.Pair = 0x100000; |
| |
| class Player extends Hand |
| { |
| constructor(name) |
| { |
| super(); |
| this._name = name; |
| this._wins = 0; |
| this._handTypeCounts = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; |
| } |
| |
| scoreHand() |
| { |
| this.score(); |
| let handType = this.rank >> 20; |
| this._handTypeCounts[handType]++; |
| } |
| |
| wonHand() |
| { |
| this._wins++ |
| } |
| |
| get name() |
| { |
| return this._name; |
| } |
| |
| get hand() |
| { |
| return super.toString(); |
| } |
| |
| get wins() |
| { |
| return this._wins; |
| } |
| |
| get handTypeCounts() |
| { |
| return this._handTypeCounts; |
| } |
| } |
| |
| function playHands(players) |
| { |
| let cardDeck = new CardDeck(); |
| let handsPlayed = 0; |
| let highestRank = 0; |
| |
| do { |
| cardDeck.shuffle(); |
| |
| for (let player of players) |
| player.clear(); |
| |
| for (let i = 0; i < 5; i++) { |
| for (let player of players) |
| player.takeCard(cardDeck.dealOneCard()); |
| } |
| |
| for (let player of players) |
| player.scoreHand(); |
| |
| handsPlayed++; |
| |
| highestRank = 0; |
| |
| for (let player of players) { |
| if (player.rank > highestRank) |
| highestRank = player.rank; |
| } |
| |
| for (let player of players) { |
| // We count ties as wins for each player. |
| if (player.rank == highestRank) |
| player.wonHand(); |
| } |
| } while (handsPlayed < 2000); |
| } |
