added dice game. added random double generator.

2026-05-02 04:22:04 -04:00 · 2025-12-07 19:51:17 +01:00
parent ccf26d24a2
commit bdeb2acdf8
2 changed files with 136 additions and 0 deletions
--- a/KfChatDotNetBot/Commands/Kasino/DiceCommand.cs
+++ b/KfChatDotNetBot/Commands/Kasino/DiceCommand.cs
@@ -0,0 +1,114 @@
+using System.Text.RegularExpressions;
+using KfChatDotNetBot.Extensions;
+using KfChatDotNetBot.Models;
+using KfChatDotNetBot.Models.DbModels;
+using KfChatDotNetBot.Services;
+using KfChatDotNetBot.Settings;
+using KfChatDotNetWsClient.Models.Events;
+
+namespace KfChatDotNetBot.Commands.Kasino;
+
+[KasinoCommand]
+[WagerCommand]
+public class DiceCommand : ICommand
+{
+    public List<Regex> Patterns => [
+        new Regex(@"dice (?<amount>\d+)$", RegexOptions.IgnoreCase),
+        new Regex(@"^dice (?<amount>\d+\.\d+)$", RegexOptions.IgnoreCase)
+    ];
+
+    public string? HelpText => "!dice, roll the dice (not really, you roll between 0 - 100)";
+    public UserRight RequiredRight => UserRight.Loser;
+    public TimeSpan Timeout => TimeSpan.FromSeconds(5);
+    public RateLimitOptionsModel? RateLimitOptions => null;
+    
+    private static double _houseEdge = 0.05; // house edge hack? are we doing perfect 50/50 games?
+
+    public async Task RunCommand(ChatBot botInstance, MessageModel messagen, UserDbModel user, GroupCollection arguments,
+        CancellationToken ctx)
+    {
+        var cleanupDelay = TimeSpan.FromMilliseconds((await SettingsProvider.GetValueAsync(BuiltIn.Keys.KasinoKenoCleanupDelay)).ToType<int>());
+        if (!arguments.TryGetValue("amount", out var amount))
+        {
+            await botInstance.SendChatMessageAsync(
+                $"{user.FormatUsername()}, not enough arguments. !dice <wager>",
+                true, autoDeleteAfter: cleanupDelay);
+            return;
+        }
+        var wager = Convert.ToDecimal(amount.Value);
+        var gambler = await Money.GetGamblerEntityAsync(user.Id, ct: ctx);
+        if (gambler == null)
+            throw new InvalidOperationException($"Caught a null when retrieving gambler for {user.KfUsername}");
+        if (gambler.Balance < wager)
+        {
+            await botInstance.SendChatMessageAsync(
+                $"{user.FormatUsername()}, your balance of {await gambler.Balance.FormatKasinoCurrencyAsync()} isn't enough for this wager.",
+                true, autoDeleteAfter: cleanupDelay);
+            return;
+        }
+        var rolled = Money.GetRandomDouble(gambler);
+        decimal newBalance;
+        var colors =
+            await SettingsProvider.GetMultipleValuesAsync([
+                BuiltIn.Keys.KiwiFarmsGreenColor, BuiltIn.Keys.KiwiFarmsRedColor
+            ]);
+        if (rolled > 0.5 + _houseEdge)
+        {
+            // you win dice
+            var effect = wager;
+            await Money.NewWagerAsync(gambler.Id, wager, effect, WagerGame.Dice, ct: ctx);
+            newBalance = gambler.Balance + effect;
+            await botInstance.SendChatMessageAsync(
+                $"{user.FormatUsername()}, you rolled a {rolled * 100:N2} and [B][COLOR={colors[BuiltIn.Keys.KiwiFarmsGreenColor].Value}]WON![/COLOR][/B] " +
+                $"You won {await effect.FormatKasinoCurrencyAsync()} and your balance is now {await newBalance.FormatKasinoCurrencyAsync()}",
+                true, autoDeleteAfter: cleanupDelay);
+        }
+        else
+        {
+            // you lose dice
+            await Money.NewWagerAsync(gambler.Id, wager, -wager, WagerGame.Dice, ct: ctx);
+            newBalance = gambler.Balance - wager;
+            await botInstance.SendChatMessageAsync(
+                $"{user.FormatUsername()}, you rolled a {rolled:0:00} and [B][COLOR={colors[BuiltIn.Keys.KiwiFarmsRedColor].Value}]LOST![/COLOR][/B] " +
+                $"Your balance is now {await newBalance.FormatKasinoCurrencyAsync()}",
+                true, autoDeleteAfter: cleanupDelay);
+        }
+    }
+
+    private static string ConstructDiceGameOutput(double rolled)
+    {
+        // returns two rows as one string
+        // row one has dice emoji shifted usisng spaces by appropriate ammount accourding to rolled
+        // second row constructs the dice "meter" according to game specs
+        var diceEmoji = "🎲";
+        var invisibleAsciiSpace = "⠀";  //U+2800
+        // 21 asciispaces fills the display, 20 dashes and one | fills the meter
+        // rolled * 21 * invisible ascii space creates the illusion of dice being alligned with rolled number
+        var toShift = (int)Math.Round(21 * rolled);
+        string diceDisplayShifted = String.Concat(Enumerable.Repeat(invisibleAsciiSpace, toShift));
+        diceDisplayShifted += diceEmoji;
+
+        const int DICE_METER_LENGTH = 20; // uhh this should influence how much the dice emoji is shifted as declared before just leave at 20 for now
+        const string DICE_METER_LEFT = "─";
+        const string DICE_METER_LEFT_COLOR = "#f1323e"; // red for lose
+        const string DICE_METER_MIDDLE = "┃";
+        const string DICE_METER_MIDDLE_COLOR = "#886cff"; // I forgot what this color is
+        const string DICE_METER_RIGHT = "─";
+        const string DICE_METER_RIGHT_COLOR = "#3dd179"; // green for win
+
+        string diceMeter = "";
+        
+        // TODO: construct rigged dice display here
+        
+        // no rig scenario
+        diceMeter += $"[B][COLOR={DICE_METER_LEFT_COLOR}]";
+        diceMeter += String.Concat(Enumerable.Repeat(DICE_METER_LEFT, DICE_METER_LENGTH / 2)); // ---------
+        diceMeter += "[/COLOR]";
+        diceMeter += $"[COLOR={DICE_METER_MIDDLE_COLOR}]{DICE_METER_MIDDLE}[/COLOR]"; // |
+        diceMeter += $"[COLOR={DICE_METER_RIGHT_COLOR}]";
+        diceMeter += String.Concat(Enumerable.Repeat(DICE_METER_RIGHT, DICE_METER_LENGTH / 2)); // --------
+        diceMeter += "[/COLOR][/B]";
+
+        return $"{diceDisplayShifted}\n{diceMeter}";
+    }
+}
--- a/KfChatDotNetBot/Services/Money.cs
+++ b/KfChatDotNetBot/Services/Money.cs
@@ -439,6 +439,28 @@ public static class Money
        return result;
    }
    
+    /// <summary>
+    /// Get random number double [0, 1]
+    /// </summary>
+    /// <param name="gambler">Gambler entity to reference their random seed</param>
+    /// <param name="iterations">Number of random number generator iterations to run before returning a result</param>
+    /// <returns>A random number based on the given parameters</returns>
+    /// <exception cref="ArgumentException"></exception>
+    public static double GetRandomDouble(GamblerDbModel gambler, int iterations = 10)
+    {
+        var rng = StandardRng.Create();
+        var random = RandomShim.Create(rng);
+        var result = 0.0;
+        var i = 0;
+        if (iterations <= 0) throw new ArgumentException("Iterations cannot be 0 or lower");
+        while (i < iterations)
+        {
+            i++;
+            result = random.NextDouble();
+        }
+        return result;
+    }
+    
    /// <summary>
    /// Get the user's current VIP level
    /// </summary>