nyx/commands/Economy/blackjack.js

const Discord = require("discord.js");
module.exports = {
  name: "blackjack",
  aliases: ["bj"],
  usage: "(Number)",
  description: "Play a blackjack game to win money",
  category: "Economy",
  //timeout: 10000,
  run: async (client, message, args) => {
    const money = parseInt(args[0]);
    const author = message.author;
    if (isNaN(money) || !money) {
      return client.err(message, "Economy", "blackjack", 101);
    }
    if ((await client.bal(author.id)) < bet) {
      client.err(message, "Economy", "blackjack", 20);
    }
    var numCardsPulled = 0;
    var gameOver = false;
    var player = {
      cards: [],
      score: 0,
    };
    var dealer = {
      cards: [],
      score: 0,
    };
    function getCardsValue(a) {
      var cardArray = [],
        sum = 0,
        i = 0,
        dk = 10.5,
        doubleking = "QQ",
        aceCount = 0;
      cardArray = a;
      for (i; i < cardArray.length; i += 1) {
        if (
          cardArray[i].rank === "J" ||
          cardArray[i].rank === "Q" ||
          cardArray[i].rank === "K"
        ) {
          sum += 10;
        } else if (cardArray[i].rank === "A") {
          sum += 11;
          aceCount += 1;
        } else if (cardArray[i].rank === doubleking) {
          sum += dk;
        } else {
          sum += cardArray[i].rank;
        }
      }
      while (aceCount > 0 && sum > 21) {
        sum -= 10;
        aceCount -= 1;
      }
      return sum;
    }

    var deck = {
      deckArray: [],
      initialize: function () {
        var suitArray, rankArray, s, r, n;
        suitArray = ["b", "d", "g", "s"];
        rankArray = [2, 3, 4, 5, 6, 7, 8, 9, 10, "J", "Q", "K", "A"];
        n = 13;

        for (s = 0; s < suitArray.length; s += 1) {
          for (r = 0; r < rankArray.length; r += 1) {
            this.deckArray[s * n + r] = {
              rank: rankArray[r],
              suit: suitArray[s],
            };
          }
        }
      },
      shuffle: function () {
        var temp, i, rnd;
        for (i = 0; i < this.deckArray.length; i += 1) {
          rnd = Math.floor(Math.random() * this.deckArray.length);
          temp = this.deckArray[i];
          this.deckArray[i] = this.deckArray[rnd];
          this.deckArray[rnd] = temp;
        }
      },
    };
    deck.initialize();
    deck.shuffle();
    async function bet(outcome) {
      if (outcome === "win") {
        await client.add(author.id, money, message);
        await client.ADDBJWin(message.author.id);
      }
      if (outcome === "lose") {
        await client.rmv(author.id, money);
      }
    }

    function endMsg(f, msg, cl, dealerC) {
      let cardsMsg = "";
      player.cards.forEach(function (card) {
        var emAR = ["♥", "♦", "♠", "♣"];
        var t = emAR[Math.floor(Math.random() * emAR.length)];
        cardsMsg += "[`" + t + card.rank.toString();
        if (card.suit == "d1") cardsMsg += "♥";
        if (card.suit == "d2") cardsMsg += "♦";
        if (card.suit == "d3") cardsMsg += "♠";
        if (card.suit == "d4") cardsMsg += "♣";
        cardsMsg += "`](https://cath.gq/) ";
      });
      cardsMsg += " > " + player.score.toString();

      var dealerMsg = "";
      if (!dealerC) {
        var emAR = ["♥", "♦", "♠", "♣"];
        var t = emAR[Math.floor(Math.random() * emAR.length)];
        dealerMsg = "[`" + t + dealer.cards[0].rank.toString();
        if (dealer.cards[0].suit == "d1") dealerMsg += "♥";
        if (dealer.cards[0].suit == "d2") dealerMsg += "♦";
        if (dealer.cards[0].suit == "d3") dealerMsg += "♠";
        if (dealer.cards[0].suit == "d4") dealerMsg += "♣";
        dealerMsg += " ? ?`](https://cath.gq/)";
      } else {
        dealerMsg = "";
        dealer.cards.forEach(function (card) {
          var emAR = ["♥", "♦", "♠", "♣"];
          var t = emAR[Math.floor(Math.random() * emAR.length)];
          dealerMsg += "[`" + t + card.rank.toString();
          if (card.suit == "d1") dealerMsg += "♥";
          if (card.suit == "d2") dealerMsg += "♦";
          if (card.suit == "d3") dealerMsg += "♠";
          if (card.suit == "d4") dealerMsg += "♣";
          dealerMsg += "`](https://cath.gq/) ";
        });
        dealerMsg += " > " + dealer.score.toString();
      }

      const gambleEmbed = new Discord.MessageEmbed()
        .setColor(cl || client.color)
        .setTitle(message.author.username + `'s Blackjack game`)
        .addField("You", cardsMsg, true)
        .addField("cath.exe", dealerMsg, true)
        .addField(f, msg);
      message.channel.send(gambleEmbed);
    }

    async function endGame() {
      if (player.score === 21) {
        bet("win");
        gameOver = true;
        await endMsg(
          `Win! You got 21!`,
          `cath.exe had ${dealer.score.toString()}`,
          `GREEN`
        );
      }
      if (player.score > 21) {
        bet("lose");
        gameOver = true;
        await endMsg(
          `Lost! You reached over 21!`,
          `cath.exe had ${dealer.score.toString()}`,
          `RED`
        );
      }
      if (dealer.score === 21) {
        bet("lose");
        gameOver = true;
        await endMsg(
          `Lost! The dealer got 21!`,
          `cath.exe had ${dealer.score.toString()}`,
          `RED`
        );
      }
      if (dealer.score > 21) {
        bet("win");
        gameOver = true;
        await endMsg(
          `Win! cath.exe reached over 21!`,
          `cath.exe had ${dealer.score.toString()}`,
          `GREEN`
        );
      }
      if (
        dealer.score >= 17 &&
        player.score > dealer.score &&
        player.score < 21
      ) {
        bet("win");
        gameOver = true;
        await endMsg(
          `Win! You defeated cath.exe!`,
          `cath.exe had ${dealer.score.toString()}`,
          `GREEN`
        );
      }
      if (
        dealer.score >= 17 &&
        player.score < dealer.score &&
        dealer.score < 21
      ) {
        bet("lose");
        gameOver = true;
        await endMsg(
          `Lost! cath.exe won!`,
          `cath.exe had ${dealer.score.toString()}`,
          `RED`
        );
      }
      if (
        dealer.score >= 17 &&
        player.score === dealer.score &&
        dealer.score < 21
      ) {
        gameOver = true;
        await endMsg(`Tie!`, `cath.exe had ${dealer.score.toString()}`, `RED`);
      }
    }

    function dealerDraw() {
      dealer.cards.push(deck.deckArray[numCardsPulled]);
      dealer.score = getCardsValue(dealer.cards);
      numCardsPulled += 1;
    }

    function newGame() {
      hit();
      hit();
      dealerDraw();
      endGame();
    }

    function hit() {
      player.cards.push(deck.deckArray[numCardsPulled]);
      player.score = getCardsValue(player.cards);

      numCardsPulled += 1;
      if (numCardsPulled > 2) {
        endGame();
      }
    }

    function stand() {
      while (dealer.score < 17) {
        dealerDraw();
      }
      endGame();
    }
    newGame();
    async function loop() {
      if (gameOver) return;

      endMsg(
        "To hit type `h`, for stand type `s`",
        `GoodLuck ;)`,
        client.color
      );

      let filter = m => m.author.id === message.author.id;
      message.channel
        .awaitMessages(filter, {
          max: 1,
          time: 1200000,
          errors: ["time"],
        })
        .then(message => {
          message = message.first();
          if (
            message.content.toLowerCase() === "h" ||
            message.content.toLowerCase() === "hit"
          ) {
            hit();
            loop();
            return;
          } else if (
            message.content.toLowerCase() === "s" ||
            message.content.toLowerCase() === "stand"
          ) {
            stand();
            loop();
            return;
          } else {
            bet("lose");
            endMsg("Invalid response", `You lost ${money}`, "RED");
            return;
          }
        })
        .catch(_ => {
          message.channel.send("Lost!!");
          bet("lose");
          return;
        });
    }
    await loop();
  },
};