package com.stealeconomy.commands; import com.stealeconomy.StealEconomy; import com.stealeconomy.economy.EconomyManager; import org.bukkit.ChatColor; import org.bukkit.command.Command; import org.bukkit.command.CommandExecutor; import org.bukkit.command.CommandSender; import org.bukkit.entity.Player; import java.util.*; public class BlackjackCommand implements CommandExecutor { private final Map activeGames = new HashMap<>(); private final StealEconomy plugin; public BlackjackCommand(StealEconomy plugin) { this.plugin = plugin; } @Override public boolean onCommand(CommandSender sender, Command command, String label, String[] args) { if (!(sender instanceof Player)) { sender.sendMessage(ChatColor.RED + "Only players can use this command."); return true; } Player player = (Player) sender; UUID uuid = player.getUniqueId(); EconomyManager eco = plugin.getEconomyManager(); if (args.length == 0 || (args.length == 1 && args[0].equalsIgnoreCase("help"))) { sendHelp(player); return true; } if (args.length == 1 && args[0].equalsIgnoreCase("hit")) { handleHit(player, uuid, eco); return true; } if (args.length == 1 && args[0].equalsIgnoreCase("stand")) { handleStand(player, uuid, eco); return true; } // Starting a new game: /blackjack if (args.length == 1) { if (activeGames.containsKey(uuid)) { player.sendMessage(ChatColor.RED + "You already have an active game! Use " + ChatColor.YELLOW + "/bj hit" + ChatColor.RED + " or " + ChatColor.YELLOW + "/bj stand" + ChatColor.RED + "."); return true; } double bet; try { bet = Double.parseDouble(args[0]); } catch (NumberFormatException e) { player.sendMessage(ChatColor.RED + "Invalid bet amount. Usage: /blackjack "); return true; } if (bet <= 0) { player.sendMessage(ChatColor.RED + "Bet must be greater than zero."); return true; } double chips = eco.getChips(uuid); if (chips < bet) { player.sendMessage(ChatColor.RED + "You don't have enough chips. You have " + ChatColor.AQUA + String.format("%.2f", chips) + " chips" + ChatColor.RED + "."); return true; } eco.addChips(uuid, -bet); BlackjackGame game = new BlackjackGame(bet); activeGames.put(uuid, game); // Check for natural blackjack if (handValue(game.playerHand) == 21) { double winnings = Math.round(bet * 2.5 * 100.0) / 100.0; eco.addChips(uuid, winnings); activeGames.remove(uuid); sendGameState(player, game, true); player.sendMessage(ChatColor.GOLD + "" + ChatColor.BOLD + "BLACKJACK! Natural 21!"); player.sendMessage(ChatColor.GREEN + "You win " + ChatColor.AQUA + String.format("%.2f", winnings) + " chips" + ChatColor.GREEN + "! (2.5x multiplier)"); player.sendMessage(ChatColor.GRAY + "Chips: " + ChatColor.AQUA + String.format("%.2f", eco.getChips(uuid))); return true; } sendGameState(player, game, false); player.sendMessage(ChatColor.YELLOW + "Type " + ChatColor.WHITE + "/bj hit" + ChatColor.YELLOW + " to draw a card, or " + ChatColor.WHITE + "/bj stand" + ChatColor.YELLOW + " to hold."); return true; } sendHelp(player); return true; } private void sendHelp(Player player) { player.sendMessage(ChatColor.GOLD + "" + ChatColor.BOLD + "--- Blackjack Help ---"); player.sendMessage(ChatColor.YELLOW + "/blackjack " + ChatColor.GRAY + " - Start a new game by betting chips."); player.sendMessage(ChatColor.YELLOW + "/bj hit" + ChatColor.GRAY + " - Draw another card."); player.sendMessage(ChatColor.YELLOW + "/bj stand" + ChatColor.GRAY + " - Hold your hand and let the dealer play."); player.sendMessage(ChatColor.GOLD + "Payouts:"); player.sendMessage(ChatColor.GRAY + " Natural 21 (first 2 cards): " + ChatColor.GREEN + "2.5x your bet"); player.sendMessage(ChatColor.GRAY + " Win: " + ChatColor.GREEN + "2x your bet"); player.sendMessage(ChatColor.GRAY + " Push (tie): " + ChatColor.YELLOW + "bet returned"); player.sendMessage(ChatColor.GRAY + " Bust / dealer wins: " + ChatColor.RED + "lose your bet"); player.sendMessage(ChatColor.GOLD + "Rules:"); player.sendMessage(ChatColor.GRAY + " Dealer draws until 17+. Chips only."); } private void handleHit(Player player, UUID uuid, EconomyManager eco) { BlackjackGame game = activeGames.get(uuid); if (game == null) { player.sendMessage(ChatColor.RED + "You don't have an active game. Start one with " + ChatColor.YELLOW + "/blackjack " + ChatColor.RED + "."); return; } game.playerHand.add(drawCard(game.deck)); int playerVal = handValue(game.playerHand); if (playerVal > 21) { sendGameState(player, game, true); player.sendMessage(ChatColor.RED + "" + ChatColor.BOLD + "BUST! You went over 21."); player.sendMessage(ChatColor.RED + "You lost " + ChatColor.AQUA + String.format("%.2f", game.bet) + " chips" + ChatColor.RED + "."); player.sendMessage(ChatColor.GRAY + "Chips: " + ChatColor.AQUA + String.format("%.2f", eco.getChips(uuid))); activeGames.remove(uuid); return; } if (playerVal == 21) { handleStand(player, uuid, eco); return; } sendGameState(player, game, false); player.sendMessage(ChatColor.YELLOW + "Type " + ChatColor.WHITE + "/bj hit" + ChatColor.YELLOW + " to draw, or " + ChatColor.WHITE + "/bj stand" + ChatColor.YELLOW + " to hold."); } private void handleStand(Player player, UUID uuid, EconomyManager eco) { BlackjackGame game = activeGames.get(uuid); if (game == null) { player.sendMessage(ChatColor.RED + "You don't have an active game. Start one with " + ChatColor.YELLOW + "/blackjack " + ChatColor.RED + "."); return; } while (handValue(game.dealerHand) < 17) { game.dealerHand.add(drawCard(game.deck)); } int playerVal = handValue(game.playerHand); int dealerVal = handValue(game.dealerHand); sendGameState(player, game, true); player.sendMessage(ChatColor.GRAY + "Your hand: " + ChatColor.WHITE + playerVal + ChatColor.GRAY + " | Dealer hand: " + ChatColor.WHITE + dealerVal); if (dealerVal > 21 || playerVal > dealerVal) { double winnings = Math.round(game.bet * 2.0 * 100.0) / 100.0; eco.addChips(uuid, winnings); player.sendMessage(ChatColor.GREEN + "" + ChatColor.BOLD + "You win!"); player.sendMessage(ChatColor.GREEN + "You earned " + ChatColor.AQUA + String.format("%.2f", winnings) + " chips" + ChatColor.GREEN + "! (2x multiplier)"); } else if (playerVal == dealerVal) { eco.addChips(uuid, game.bet); player.sendMessage(ChatColor.YELLOW + "" + ChatColor.BOLD + "Push! It's a tie."); player.sendMessage(ChatColor.YELLOW + "Your bet of " + ChatColor.AQUA + String.format("%.2f", game.bet) + " chips" + ChatColor.YELLOW + " has been returned."); } else { player.sendMessage(ChatColor.RED + "" + ChatColor.BOLD + "Dealer wins!"); player.sendMessage(ChatColor.RED + "You lost " + ChatColor.AQUA + String.format("%.2f", game.bet) + " chips" + ChatColor.RED + "."); } player.sendMessage(ChatColor.GRAY + "Chips: " + ChatColor.AQUA + String.format("%.2f", eco.getChips(uuid))); activeGames.remove(uuid); } public void refundAllActiveBets() { EconomyManager eco = plugin.getEconomyManager(); for (Map.Entry entry : activeGames.entrySet()) { eco.addChips(entry.getKey(), entry.getValue().bet); } activeGames.clear(); } private void sendGameState(Player player, BlackjackGame game, boolean revealDealer) { player.sendMessage(ChatColor.GOLD + "--- Blackjack ---"); if (revealDealer) { player.sendMessage(ChatColor.RED + "Dealer: " + ChatColor.WHITE + formatHand(game.dealerHand) + ChatColor.GRAY + " (" + handValue(game.dealerHand) + ")"); } else { player.sendMessage(ChatColor.RED + "Dealer: " + ChatColor.WHITE + formatCard(game.dealerHand.get(0)) + ChatColor.GRAY + " [hidden]"); } player.sendMessage(ChatColor.AQUA + "You: " + ChatColor.WHITE + formatHand(game.playerHand) + ChatColor.GRAY + " (" + handValue(game.playerHand) + ")"); player.sendMessage(ChatColor.GRAY + "Bet: " + ChatColor.AQUA + String.format("%.2f", game.bet) + " chips"); } private String formatHand(List hand) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < hand.size(); i++) { if (i > 0) sb.append(ChatColor.GRAY + ", " + ChatColor.WHITE); sb.append(hand.get(i)); } return sb.toString(); } private String formatCard(String card) { return card; } private int handValue(List hand) { int total = 0; int aces = 0; for (String card : hand) { String rank = card.replaceAll("[♠♥♦♣]", ""); if (rank.equals("A")) { aces++; total += 11; } else if (rank.equals("K") || rank.equals("Q") || rank.equals("J")) { total += 10; } else { total += Integer.parseInt(rank); } } while (total > 21 && aces > 0) { total -= 10; aces--; } return total; } private String drawCard(List deck) { return deck.remove(deck.size() - 1); } private static class BlackjackGame { private static final String[] RANKS = {"2","3","4","5","6","7","8","9","10","J","Q","K","A"}; private static final String[] SUITS = {"♠","♥","♦","♣"}; final double bet; final List deck; final List playerHand = new ArrayList<>(); final List dealerHand = new ArrayList<>(); BlackjackGame(double bet) { this.bet = bet; this.deck = buildDeck(); playerHand.add(drawFrom(deck)); dealerHand.add(drawFrom(deck)); playerHand.add(drawFrom(deck)); dealerHand.add(drawFrom(deck)); } private String drawFrom(List d) { return d.remove(d.size() - 1); } private static List buildDeck() { List deck = new ArrayList<>(); for (String suit : SUITS) { for (String rank : RANKS) { deck.add(rank + suit); } } Collections.shuffle(deck); return deck; } } }