Holiday System (#3122)

Content.Client/Jobs/JanitorSpecial.cs

@@ -0,0 +1,12 @@
+using Content.Shared.Roles;
+using JetBrains.Annotations;
+
+namespace Content.Client.Jobs
+{
+    [UsedImplicitly]
+    public class JanitorSpecial : JobSpecial
+    {
+        // Dummy class that exists solely to avoid an exception on the client,
+        // but allow the server-side counterpart to exist.
+    }
+}

Content.Client/UserInterface/GhostRoleWindow.cs

@@ -1,6 +1,4 @@
-using Content.Client.GameObjects.EntitySystems;
 using Robust.Client.UserInterface.CustomControls;
-using Robust.Shared.GameObjects.Systems;
 
 namespace Content.Client.UserInterface
 {

Content.IntegrationTests/ContentIntegrationTest.cs

@@ -79,6 +79,9 @@ namespace Content.IntegrationTests
             // Avoid funny race conditions with the database.
             options.CVarOverrides[CCVars.DatabaseSynchronous.Name] = "true";
 
+            // Disable holidays as some of them might mess with the map at round start.
+            options.CVarOverrides[CCVars.HolidaysEnabled.Name] = "false";
+
             // Avoid loading a large map by default for integration tests.
             options.CVarOverrides[CCVars.GameMap.Name] = "Maps/Test/empty.yml";
 

Content.IntegrationTests/Tests/ContainerOcclusionTest.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Linq;
 using System.Threading.Tasks;
 using Content.Server.GameObjects.Components.Items.Storage;

Content.Server/Chat/ChatManager.cs

@@ -17,6 +17,7 @@ using Robust.Server.Player;
 using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Localization;
+using Robust.Shared.Log;
 using Robust.Shared.Network;
 using static Content.Server.Interfaces.Chat.IChatManager;
 
@@ -67,6 +68,7 @@ namespace Content.Server.Chat
             msg.Message = message;
             msg.MessageWrap = "SERVER: {0}";
             _netManager.ServerSendToAll(msg);
+            Logger.InfoS("SERVER", message);
         }
 
         public void DispatchStationAnnouncement(string message, string sender = "CentComm")

Content.Server/EntryPoint.cs

@@ -5,6 +5,7 @@ using Content.Server.Database;
 using Content.Server.Eui;
 using Content.Server.GameObjects.Components.Mobs.Speech;
 using Content.Server.GameObjects.Components.NodeContainer.NodeGroups;
+using Content.Server.Holiday.Interfaces;
 using Content.Server.Interfaces;
 using Content.Server.Interfaces.Chat;
 using Content.Server.Interfaces.GameTicking;
@@ -78,6 +79,7 @@ namespace Content.Server
         {
             base.PostInit();
 
+            IoCManager.Resolve<IHolidayManager>().Initialize();
             _gameTicker.Initialize();
             IoCManager.Resolve<RecipeManager>().Initialize();
             IoCManager.Resolve<AlertManager>().Initialize();

Content.Server/GameObjects/Components/Observer/GhostRoleComponent.cs

@@ -1,7 +1,6 @@
 using Content.Server.GameObjects.EntitySystems;
-using Robust.Server.Interfaces.Player;
+using Robust.Server.Player;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Systems;
 using Robust.Shared.Serialization;
 using Robust.Shared.ViewVariables;
 

Content.Server/GameObjects/Components/Observer/GhostRoleMobSpawnerComponent.cs

@@ -2,11 +2,8 @@
 using Content.Server.GameObjects.Components.Mobs;
 using Content.Server.Players;
 using JetBrains.Annotations;
-using Robust.Server.Interfaces.GameObjects;
-using Robust.Server.Interfaces.Player;
+using Robust.Server.Player;
 using Robust.Shared.GameObjects;
-using Robust.Shared.IoC;
-using Robust.Shared.Prototypes;
 using Robust.Shared.Serialization;
 using Robust.Shared.ViewVariables;
 

Content.Server/GameObjects/Components/Observer/GhostRolesEui.cs

@@ -2,7 +2,7 @@ using Content.Server.Eui;
 using Content.Server.GameObjects.EntitySystems;
 using Content.Shared.Eui;
 using Content.Shared.GameObjects.Components.Observer;
-using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.GameObjects;
 
 namespace Content.Server.GameObjects.Components.Observer
 {

Content.Server/GameObjects/Components/Observer/GhostTakeoverAvailableComponent.cs

@@ -2,9 +2,8 @@ using System;
 using Content.Server.GameObjects.Components.Mobs;
 using Content.Server.GameObjects.EntitySystems;
 using Content.Server.Players;
-using Robust.Server.Interfaces.Player;
+using Robust.Server.Player;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Systems;
 
 namespace Content.Server.GameObjects.Components.Observer
 {

Content.Server/GameObjects/EntitySystems/GhostRoleSystem.cs

@@ -1,18 +1,15 @@
 using System.Collections.Generic;
-using System.Drawing;
 using Content.Server.Administration;
 using Content.Server.Eui;
 using Content.Server.GameObjects.Components.Observer;
 using Content.Shared.GameObjects.Components.Observer;
-using Content.Shared.GameObjects.EntitySystemMessages;
 using Content.Shared.GameTicking;
 using JetBrains.Annotations;
 using Robust.Server.GameObjects;
-using Robust.Server.Interfaces.Player;
+using Robust.Server.Player;
 using Robust.Shared.Console;
-using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
-using Robust.Shared.Utility;
 using Robust.Shared.ViewVariables;
 
 namespace Content.Server.GameObjects.EntitySystems

Content.Server/GameTicking/GameTicker.cs

@@ -11,6 +11,8 @@ using Content.Server.GameObjects.Components.Mobs.Speech;
 using Content.Server.GameObjects.Components.Observer;
 using Content.Server.GameObjects.Components.PDA;
 using Content.Server.GameTicking.GamePresets;
+using Content.Server.Holiday;
+using Content.Server.Holiday.Interfaces;
 using Content.Server.Interfaces;
 using Content.Server.Interfaces.Chat;
 using Content.Server.Interfaces.GameTicking;

Content.Server/Holiday/Celebrate/DefaultHolidayCelebrate.cs

@@ -0,0 +1,12 @@
+using Content.Server.Holiday.Interfaces;
+
+namespace Content.Server.Holiday.Celebrate
+{
+    public class DefaultHolidayCelebrate : IHolidayCelebrate
+    {
+        public void Celebrate(HolidayPrototype holiday)
+        {
+            // Nada.
+        }
+    }
+}

Content.Server/Holiday/Greet/Custom.cs

@@ -0,0 +1,22 @@
+using Content.Server.Holiday.Interfaces;
+using JetBrains.Annotations;
+using Robust.Shared.Serialization;
+
+namespace Content.Server.Holiday.Greet
+{
+    [UsedImplicitly]
+    public class Custom : IHolidayGreet
+    {
+        private string _greet;
+
+        void IExposeData.ExposeData(ObjectSerializer serializer)
+        {
+            serializer.DataField(ref _greet, "text", string.Empty);
+        }
+
+        public string Greet(HolidayPrototype holiday)
+        {
+            return _greet;
+        }
+    }
+}

Content.Server/Holiday/Greet/DefaultHolidayGreet.cs

@@ -0,0 +1,13 @@
+using Content.Server.Holiday.Interfaces;
+using Robust.Shared.Localization;
+
+namespace Content.Server.Holiday.Greet
+{
+    public class DefaultHolidayGreet : IHolidayGreet
+    {
+        public string Greet(HolidayPrototype holiday)
+        {
+            return Loc.GetString("Have a happy {0}!", holiday.Name);
+        }
+    }
+}

Content.Server/Holiday/HolidayManager.cs

@@ -0,0 +1,105 @@
+using System;
+using System.Collections.Generic;
+using Content.Server.GameTicking;
+using Content.Server.Holiday.Interfaces;
+using Content.Server.Interfaces.Chat;
+using Content.Server.Interfaces.GameTicking;
+using Content.Shared;
+using Robust.Shared.Configuration;
+using Robust.Shared.IoC;
+using Robust.Shared.Prototypes;
+using Robust.Shared.ViewVariables;
+
+namespace Content.Server.Holiday
+{
+    // ReSharper disable once ClassNeverInstantiated.Global
+    public class HolidayManager : IHolidayManager
+    {
+        [Dependency] private readonly IConfigurationManager _configManager = default!;
+        [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+        [Dependency] private readonly IGameTicker _gameTicker = default!;
+        [Dependency] private readonly IChatManager _chatManager = default!;
+
+        [ViewVariables]
+        private readonly List<HolidayPrototype> _currentHolidays = new();
+
+        [ViewVariables]
+        private bool _enabled = true;
+
+        public void RefreshCurrentHolidays()
+        {
+            _currentHolidays.Clear();
+
+            if (!_enabled) return;
+
+            var now = DateTime.Now;
+
+            foreach (var holiday in _prototypeManager.EnumeratePrototypes<HolidayPrototype>())
+            {
+                if(holiday.ShouldCelebrate(now))
+                    _currentHolidays.Add(holiday);
+            }
+        }
+
+        public void DoGreet()
+        {
+            foreach (var holiday in _currentHolidays)
+            {
+                _chatManager.DispatchServerAnnouncement(holiday.Greet());
+            }
+        }
+
+        public void DoCelebrate()
+        {
+            foreach (var holiday in _currentHolidays)
+            {
+                holiday.Celebrate();
+            }
+        }
+
+        public IEnumerable<HolidayPrototype> GetCurrentHolidays()
+        {
+            return _currentHolidays;
+        }
+
+        public bool IsCurrentlyHoliday(string holiday)
+        {
+            if (!_prototypeManager.TryIndex(holiday, out HolidayPrototype prototype))
+                return false;
+
+            return _currentHolidays.Contains(prototype);
+        }
+
+        public void Initialize()
+        {
+            _configManager.OnValueChanged(CCVars.HolidaysEnabled, OnHolidaysEnableChange, true);
+
+            _gameTicker.OnRunLevelChanged += OnRunLevelChanged;
+        }
+
+        private void OnHolidaysEnableChange(bool enabled)
+        {
+            _enabled = enabled;
+
+            RefreshCurrentHolidays();
+        }
+
+        private void OnRunLevelChanged(GameRunLevelChangedEventArgs eventArgs)
+        {
+            if (!_enabled) return;
+
+            switch (eventArgs.NewRunLevel)
+            {
+                case GameRunLevel.PreRoundLobby:
+                    RefreshCurrentHolidays();
+                    break;
+                case GameRunLevel.InRound:
+                    DoGreet();
+                    DoCelebrate();
+                    break;
+                case GameRunLevel.PostRound:
+                    break;
+            }
+        }
+    }
+}

Content.Server/Holiday/HolidayPrototype.cs

@@ -0,0 +1,78 @@
+#nullable enable
+using System;
+using Content.Server.Holiday.Celebrate;
+using Content.Server.Holiday.Greet;
+using Content.Server.Holiday.Interfaces;
+using Content.Server.Holiday.ShouldCelebrate;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization;
+using Robust.Shared.ViewVariables;
+using YamlDotNet.RepresentationModel;
+
+namespace Content.Server.Holiday
+{
+    [Prototype("holiday")]
+    public class HolidayPrototype : IPrototype, IIndexedPrototype, IExposeData
+    {
+        [ViewVariables] public string Name { get; private set; } = string.Empty;
+        [ViewVariables] public string ID { get; private set; } = string.Empty;
+        [ViewVariables] public byte BeginDay { get; set; } = 1;
+        [ViewVariables] public Month BeginMonth { get; set; } = Month.Invalid;
+
+        /// <summary>
+        ///     Day this holiday will end. Zero means it lasts a single day.
+        /// </summary>
+        [ViewVariables] public byte EndDay { get; set; } = 0;
+
+        /// <summary>
+        ///     Month this holiday will end in. Invalid means it lasts a single month.
+        /// </summary>
+        [ViewVariables] public Month EndMonth { get; set; } = Month.Invalid;
+
+        [ViewVariables]
+        private IHolidayShouldCelebrate _shouldCelebrate = new DefaultHolidayShouldCelebrate();
+
+        [ViewVariables]
+        private IHolidayGreet _greet = new DefaultHolidayGreet();
+
+        [ViewVariables]
+        private IHolidayCelebrate _celebrate = new DefaultHolidayCelebrate();
+
+        public void LoadFrom(YamlMappingNode mapping)
+        {
+            var serializer = YamlObjectSerializer.NewReader(mapping);
+            ExposeData(serializer);
+        }
+
+        public void ExposeData(ObjectSerializer serializer)
+        {
+            serializer.DataField(this, x => x.ID, "id", string.Empty);
+            serializer.DataField(this, x => x.Name, "name", string.Empty);
+            serializer.DataField(this, x => x.BeginDay, "beginDay", (byte)1);
+            serializer.DataField(this, x => x.BeginMonth, "beginMonth", Month.Invalid);
+            serializer.DataField(this, x => x.EndDay, "endDay", (byte)0);
+            serializer.DataField(this, x => x.EndMonth, "endMonth", Month.Invalid);
+            serializer.DataField(ref _shouldCelebrate, "shouldCelebrate", new DefaultHolidayShouldCelebrate());
+            serializer.DataField(ref _greet, "greet", new DefaultHolidayGreet());
+            serializer.DataField(ref _celebrate, "celebrate", new DefaultHolidayCelebrate());
+        }
+
+        public bool ShouldCelebrate(DateTime date)
+        {
+            return _shouldCelebrate.ShouldCelebrate(date, this);
+        }
+
+        public string Greet()
+        {
+            return _greet.Greet(this);
+        }
+
+        /// <summary>
+        ///     Called before the round starts to set up any festive shenanigans.
+        /// </summary>
+        public void Celebrate()
+        {
+            _celebrate.Celebrate(this);
+        }
+    }
+}

Content.Server/Holiday/Interfaces/IHolidayCelebrate.cs

@@ -0,0 +1,15 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Server.Holiday.Interfaces
+{
+    public interface IHolidayCelebrate : IExposeData
+    {
+        void IExposeData.ExposeData(ObjectSerializer serializer) {}
+
+        /// <summary>
+        ///     This method is called before a round starts.
+        ///     Use it to do any fun festive modifications.
+        /// </summary>
+        void Celebrate(HolidayPrototype holiday);
+    }
+}

Content.Server/Holiday/Interfaces/IHolidayGreet.cs

@@ -0,0 +1,10 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Server.Holiday.Interfaces
+{
+    public interface IHolidayGreet : IExposeData
+    {
+        void IExposeData.ExposeData(ObjectSerializer serializer) { }
+        string Greet(HolidayPrototype holiday);
+    }
+}

Content.Server/Holiday/Interfaces/IHolidayManager.cs

@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+
+namespace Content.Server.Holiday.Interfaces
+{
+    public interface IHolidayManager
+    {
+        void Initialize();
+        void RefreshCurrentHolidays();
+        void DoGreet();
+        void DoCelebrate();
+        IEnumerable<HolidayPrototype> GetCurrentHolidays();
+        bool IsCurrentlyHoliday(string holiday);
+    }
+}

Content.Server/Holiday/Interfaces/IHolidayShouldCelebrate.cs

@@ -0,0 +1,11 @@
+using System;
+using Robust.Shared.Serialization;
+
+namespace Content.Server.Holiday.Interfaces
+{
+    public interface IHolidayShouldCelebrate : IExposeData
+    {
+        void IExposeData.ExposeData(ObjectSerializer serializer) {}
+        bool ShouldCelebrate(DateTime date, HolidayPrototype holiday);
+    }
+}

Content.Server/Holiday/MonthEnum.cs

@@ -0,0 +1,19 @@
+namespace Content.Server.Holiday
+{
+    public enum Month : byte
+    {
+        Invalid   = 0,
+        January   = 1,
+        February  = 2,
+        March     = 3,
+        April     = 4,
+        May       = 5,
+        June      = 6,
+        July      = 7,
+        August    = 8,
+        September = 9,
+        October   = 10,
+        November  = 11,
+        December  = 12
+    }
+}

Content.Server/Holiday/ShouldCelebrate/ChineseNewYear.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Globalization;
+using Content.Server.Holiday.Interfaces;
+
+namespace Content.Server.Holiday.ShouldCelebrate
+{
+    public class ChineseNewYear : IHolidayShouldCelebrate
+    {
+        public bool ShouldCelebrate(DateTime date, HolidayPrototype holiday)
+        {
+            var chinese = new ChineseLunisolarCalendar();
+            var gregorian = new GregorianCalendar();
+
+            var chineseNewYear = chinese.ToDateTime(date.Year, 1, 1, 0, 0, 0, 0);
+
+            return date.Day == chineseNewYear.Day && date.Month == chineseNewYear.Month;
+        }
+    }
+}

Content.Server/Holiday/ShouldCelebrate/Computus.cs

@@ -0,0 +1,117 @@
+using System;
+using System.IO;
+using JetBrains.Annotations;
+using Robust.Shared.Serialization;
+
+namespace Content.Server.Holiday.ShouldCelebrate
+{
+    /// <summary>
+    ///     Computus for easter calculation.
+    /// </summary>
+    [UsedImplicitly]
+    public class Computus : DefaultHolidayShouldCelebrate, IExposeData
+    {
+        private byte _daysEarly = 1;
+        private byte _daysExtra = 1;
+
+        void IExposeData.ExposeData(ObjectSerializer serializer)
+        {
+            serializer.DataField(ref _daysEarly, "daysEarly", (byte) 1);
+            serializer.DataField(ref _daysExtra, "daysExtra", (byte) 1);
+        }
+
+        public (int day, int month) DoComputus(DateTime date)
+        {
+            var currentYear = date.Year;
+            var m = 0;
+            var n = 0;
+
+            switch (currentYear)
+            {
+                case var i when i >= 1900 && i <= 2099:
+                    m = 24;
+                    n = 5;
+                    break;
+
+                case var i when i >= 2100 && i <= 2199:
+                    m = 24;
+                    n = 6;
+                    break;
+
+                case var i when i >= 2200 && i <= 2299:
+                    m = 25;
+                    n = 0;
+                    break;
+
+                // Hello, future person! If you're living in the year >=2300, you might want to fix this method.
+                // t. earth coder living in 2021
+                default:
+                    throw new InvalidDataException("Easter machine broke.");
+            }
+
+            var a = currentYear % 19;
+            var b = currentYear % 4;
+            var c = currentYear % 7;
+            var d = (19 * a + m) % 30;
+            var e = (2 * b + 4 * c + 6 * d + n) % 7;
+
+            (int day, int month) easterDate = (0, 0);
+
+            if (d + e < 10)
+            {
+                easterDate.month = 3;
+                easterDate.day = (d + e + 22);
+            } else if (d + e > 9)
+            {
+                easterDate.month = 4;
+                easterDate.day = (d + e - 9);
+            }
+
+            if (easterDate.month == 4 && easterDate.day == 26)
+                easterDate.day = 19;
+
+            if (easterDate.month == 4 && easterDate.day == 25 && d == 28 && e == 6 && a > 10)
+                easterDate.day = 18;
+
+            return easterDate;
+        }
+
+        public override bool ShouldCelebrate(DateTime date, HolidayPrototype holiday)
+        {
+            if (holiday.BeginMonth == Month.Invalid)
+            {
+                var (day, month) = DoComputus(date);
+
+                holiday.BeginDay = (byte) day;
+                holiday.BeginMonth = (Month) month;
+
+                holiday.EndDay = (byte) (holiday.BeginDay + _daysExtra);
+                holiday.EndMonth = holiday.BeginMonth;
+
+                // Begins in march, ends in april
+                if (holiday.EndDay >= 32 && holiday.EndMonth == Month.March)
+                {
+                    holiday.EndDay -= 31;
+                    holiday.EndMonth++;
+                }
+
+                // Begins in april, ends in june.
+                if (holiday.EndDay >= 31 && holiday.EndMonth == Month.April)
+                {
+                    holiday.EndDay -= 30;
+                    holiday.EndMonth++;
+                }
+
+                holiday.BeginDay -= _daysEarly;
+                // Begins in march, ends in april.
+                if (holiday.BeginDay <= 0 && holiday.BeginMonth == Month.April)
+                {
+                    holiday.BeginDay += 31;
+                    holiday.BeginMonth--;
+                }
+            }
+
+            return base.ShouldCelebrate(date, holiday);
+        }
+    }
+}

Content.Server/Holiday/ShouldCelebrate/DayOfYear.cs

@@ -0,0 +1,26 @@
+using System;
+using Content.Server.Holiday.Interfaces;
+using JetBrains.Annotations;
+using Robust.Shared.Serialization;
+
+namespace Content.Server.Holiday.ShouldCelebrate
+{
+    /// <summary>
+    ///     For a holiday that occurs on a certain day of the year.
+    /// </summary>
+    [UsedImplicitly]
+    public class DayOfYear : IHolidayShouldCelebrate
+    {
+        private uint _dayOfYear;
+
+        void IExposeData.ExposeData(ObjectSerializer serializer)
+        {
+            serializer.DataField(ref _dayOfYear, "dayOfYear", 1u);
+        }
+
+        public bool ShouldCelebrate(DateTime date, HolidayPrototype holiday)
+        {
+            return date.DayOfYear == _dayOfYear;
+        }
+    }
+}

Content.Server/Holiday/ShouldCelebrate/DefaultHolidayShouldCelebrate.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Globalization;
+using Content.Server.Holiday.Interfaces;
+
+namespace Content.Server.Holiday.ShouldCelebrate
+{
+    public class DefaultHolidayShouldCelebrate : IHolidayShouldCelebrate
+    {
+        public virtual bool ShouldCelebrate(DateTime date, HolidayPrototype holiday)
+        {
+            if (holiday.EndDay == 0)
+                holiday.EndDay = holiday.BeginDay;
+
+            if (holiday.EndMonth == Month.Invalid)
+                holiday.EndMonth = holiday.BeginMonth;
+
+            // Holiday spans multiple months in one year.
+            if(holiday.EndMonth > holiday.BeginMonth)
+            {
+                // In final month.
+                if (date.Month == (int) holiday.EndMonth && date.Day <= holiday.EndDay)
+                    return true;
+
+                // In first month.
+                if (date.Month == (int) holiday.BeginMonth && date.Day >= holiday.BeginDay)
+                    return true;
+
+                // Holiday spans more than 2 months, and we're in the middle.
+                if (date.Month > (int) holiday.BeginMonth && date.Month < (int) holiday.EndMonth)
+                    return true;
+            }
+
+            // Holiday starts and stops in the same month.
+            else if (holiday.EndMonth == holiday.BeginMonth)
+            {
+                if (date.Month == (int) holiday.BeginMonth && date.Day >= holiday.BeginDay && date.Day <= holiday.EndDay)
+                    return true;
+            }
+
+            // Holiday starts in one year and ends in the next.
+            else
+            {
+                // Holiday ends next year.
+                if (date.Month >= (int) holiday.BeginMonth && date.Day >= holiday.BeginDay)
+                    return true;
+
+                // Holiday started last year.
+                if (date.Month <= (int) holiday.EndMonth && date.Day <= holiday.EndDay)
+                    return true;
+            }
+
+            return false;
+        }
+    }
+}

Content.Server/Holiday/ShouldCelebrate/FridayThirteenth.cs

@@ -0,0 +1,18 @@
+using System;
+using Content.Server.Holiday.Interfaces;
+using JetBrains.Annotations;
+
+namespace Content.Server.Holiday.ShouldCelebrate
+{
+    /// <summary>
+    ///     For Friday the 13th. Spooky!
+    /// </summary>
+    [UsedImplicitly]
+    public class FridayThirteenth : IHolidayShouldCelebrate
+    {
+        public bool ShouldCelebrate(DateTime date, HolidayPrototype holiday)
+        {
+            return date.Day == 13 && date.DayOfWeek == DayOfWeek.Friday;
+        }
+    }
+}

Content.Server/Holiday/ShouldCelebrate/WeekdayInMonth.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Globalization;
+using JetBrains.Annotations;
+using Robust.Shared.Serialization;
+
+namespace Content.Server.Holiday.ShouldCelebrate
+{
+    /// <summary>
+    ///     For a holiday that happens the first instance of a weekday on a month.
+    /// </summary>
+    [UsedImplicitly]
+    public class WeekdayInMonth : DefaultHolidayShouldCelebrate, IExposeData
+    {
+        private DayOfWeek _weekday;
+        private uint _occurrence;
+
+        void IExposeData.ExposeData(ObjectSerializer serializer)
+        {
+            serializer.DataField(ref _weekday, "weekday", DayOfWeek.Monday);
+            serializer.DataField(ref _occurrence, "occurrence", 1u);
+        }
+
+        public override bool ShouldCelebrate(DateTime date, HolidayPrototype holiday)
+        {
+            // Occurrence NEEDS to be between 1 and 4.
+            _occurrence = Math.Max(1, Math.Min(_occurrence, 4));
+
+            var calendar = new GregorianCalendar();
+
+            var d = new DateTime(date.Year, date.Month, 1, calendar);
+            for (var i = 1; i <= 7; i++)
+            {
+                if (d.DayOfWeek != _weekday)
+                {
+                    d = d.AddDays(1);
+                    continue;
+                }
+
+                d = d.AddDays(7 * (_occurrence-1));
+
+                return date.Day == d.Day;
+            }
+
+            return false;
+        }
+    }
+}

Content.Server/Jobs/JanitorSpecial.cs

@@ -0,0 +1,40 @@
+#nullable enable
+using Content.Server.GameObjects.Components.GUI;
+using Content.Server.GameObjects.Components.Items.Storage;
+using Content.Server.Holiday.Interfaces;
+using Content.Shared.Roles;
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Serialization;
+
+namespace Content.Server.Jobs
+{
+    [UsedImplicitly]
+    public class JanitorSpecial : JobSpecial
+    {
+        private string _holiday = string.Empty;
+        private string _prototype = string.Empty;
+
+        protected override void ExposeData(ObjectSerializer serializer)
+        {
+            base.ExposeData(serializer);
+
+            serializer.DataField(ref _holiday, "holiday", string.Empty);
+            serializer.DataField(ref _prototype, "prototype", string.Empty);
+        }
+
+        public override void AfterEquip(IEntity mob)
+        {
+            base.AfterEquip(mob);
+
+            if (string.IsNullOrEmpty(_holiday) || string.IsNullOrEmpty(_prototype)) return;
+            if (!IoCManager.Resolve<IHolidayManager>().IsCurrentlyHoliday(_holiday)) return;
+
+            var item = mob.EntityManager.SpawnEntity(_prototype, mob.Transform.Coordinates);
+            if (!item.TryGetComponent(out ItemComponent? itemComp)) return;
+            if (!mob.TryGetComponent(out HandsComponent? handsComponent)) return;
+            handsComponent.PutInHand(itemComp, false);
+        }
+    }
+}

Content.Server/ServerContentIoC.cs

@@ -9,6 +9,8 @@ using Content.Server.GameObjects.Components.NodeContainer.NodeGroups;
 using Content.Server.GameObjects.Components.Power.PowerNetComponents;
 using Content.Server.GameObjects.EntitySystems.DeviceNetwork;
 using Content.Server.GameTicking;
+using Content.Server.Holiday;
+using Content.Server.Holiday.Interfaces;
 using Content.Server.Interfaces;
 using Content.Server.Interfaces.Chat;
 using Content.Server.Interfaces.GameTicking;
@@ -55,6 +57,7 @@ namespace Content.Server
             IoCManager.Register<IAdminManager, AdminManager>();
             IoCManager.Register<IDeviceNetwork, DeviceNetwork>();
             IoCManager.Register<EuiManager, EuiManager>();
+            IoCManager.Register<IHolidayManager, HolidayManager>();
         }
     }
 }

Content.Server/StationEvents/GasLeak.cs

@@ -1,13 +1,8 @@
 using Content.Server.GameObjects.Components.Atmos;
 using Content.Server.Interfaces.GameTicking;
 using Content.Shared.Atmos;
-using Robust.Server.GameObjects.EntitySystems;
+using Robust.Server.GameObjects;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Map;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Map;
-using Robust.Shared.Interfaces.Random;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Map;
@@ -30,7 +25,7 @@ namespace Content.Server.StationEvents
         protected override string? EndAnnouncement => "The source of the gas leak has been fixed. Please be cautious around areas with gas remaining.";
 
         private static readonly Gas[] LeakableGases = {
-            Gas.Phoron,
+            Gas.Plasma,
             Gas.Tritium,
         };
 

Content.Shared/CCVars.cs

@@ -241,6 +241,12 @@ namespace Content.Shared
         public static readonly CVarDef<int> MaxMidiLaggedBatches =
             CVarDef.Create("midi.max_lagged_batches", 8, CVar.SERVERONLY);
 
+        /*
+         * Holidays
+         */
+
+        public static readonly CVarDef<bool> HolidaysEnabled = CVarDef.Create("holidays.enabled", true, CVar.SERVERONLY);
+
         /*
          * Branding stuff
          */

Content.Shared/GameObjects/EntitySystems/SharedGhostRoleSystem.cs

@@ -1,6 +1,5 @@
 using System;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Systems;
 using Robust.Shared.Serialization;
 
 namespace Content.Shared.GameObjects.EntitySystems

Resources/Prototypes/Roles/Jobs/Civilian/janitor.yml

@@ -9,6 +9,10 @@
   access:
   - Janitor
   - Maintenance
+  special:
+    !type:JanitorSpecial
+    holiday: GarbageDay
+    prototype: RevolverInspector
 
 - type: startingGear
   id: JanitorGear

Resources/Prototypes/holidays.yml

@@ -0,0 +1,421 @@
+- type: holiday
+  id: NewYear
+  name: New Year
+  beginDay: 30
+  beginMonth: December
+  endDay: 2
+  endMonth: January
+
+- type: holiday
+  id: MisterLizard
+  name: Mister Lizard's Birthday
+  beginDay: 15
+  beginMonth: January
+
+- type: holiday
+  id: ChineseNewYear
+  name: Chinese New Year
+  shouldCelebrate:
+    !type:ChineseNewYear {}
+
+- type: holiday
+  id: GroundhogDay
+  name: Groundhog Day
+  beginDay: 2
+  beginMonth: February
+
+- type: holiday
+  id: ValentinesDay
+  name: Valentine's Day
+  beginDay: 13
+  endDay: 15
+  beginMonth: February
+
+- type: holiday
+  id: Birthday13
+  name: Birthday of Space Station 13
+  beginDay: 16
+  beginMonth: February
+
+- type: holiday
+  id: RandomKindness
+  name: Random Acts of Kindness Day
+  beginDay: 17
+  beginMonth: February
+
+- type: holiday
+  id: LeapDay
+  name: Leap Day
+  beginDay: 29
+  beginMonth: February
+
+- type: holiday
+  id: PiDay
+  name: Pi Day
+  beginDay: 14
+  beginMonth: March
+
+- type: holiday
+  id: StPatricksDay
+  name: St. Patrick's Day
+  beginDay: 17
+  beginMonth: March
+
+- type: holiday
+  id: Easter
+  name: Easter
+  shouldCelebrate:
+    !type:Computus { }
+
+- type: holiday
+  id: AprilFoolDay
+  name: April Fools Day
+  beginDay: 1
+  beginMonth: April
+
+- type: holiday
+  id: AutismAwarenessDay
+  name: Autism Awareness Day
+  beginDay: 2
+  beginMonth: April
+
+- type: holiday
+  id: CosmonauticsDay
+  name: Cosmonautics Day
+  beginDay: 12
+  beginMonth: April
+  greet:
+    !type:Custom
+    text: On this day over 600 years ago, Comrade Yuri Gagarin first ventured into space!
+
+- type: holiday
+  id: FourTwenty
+  name: Four-Twenty
+  beginDay: 20
+  beginMonth: April
+
+- type: holiday
+  id: TeaDay
+  name: National Tea Day
+  beginDay: 21
+  beginMonth: April
+
+- type: holiday
+  id: EarthDay
+  name: Earth Day
+  beginDay: 22
+  beginMonth: April
+
+- type: holiday
+  id: AnzacDay
+  name: Anzac Day
+  beginDay: 25
+  beginMonth: April
+
+- type: holiday
+  id: Birthday14
+  name: Birthday of Space Station 14
+  beginDay: 26
+  beginMonth: April
+
+- type: holiday
+  id: LaborDay
+  name: Labor Day
+  beginDay: 1
+  beginMonth: May
+
+- type: holiday
+  id: FirefighterDay
+  name: Firefighter's Day
+  beginDay: 4
+  beginMonth: May
+
+- type: holiday
+  id: MothersDay
+  name: Mother's Day
+  beginMonth: May
+  shouldCelebrate:
+    !type:WeekdayInMonth
+    weekday: Sunday
+    occurrence: 2
+  greet:
+    !type:Custom
+    text: "Happy Mother's Day in most of the Americas, Asia, and Oceania!"
+
+- type: holiday
+  id: OwlAndPussycatDay
+  name: Owl and Pussycat Day
+  beginDay: 12
+  beginMonth: May
+
+- type: holiday
+  id: MoMMIDay
+  name: MoMMI Day
+  beginDay: 30
+  beginMonth: May
+
+- type: holiday
+  id: GarbageDay
+  name: Garbage Day
+  beginDay: 17
+  beginMonth: June
+
+- type: holiday
+  id: InternationalPicnicDay
+  name: International Picnic Day
+  beginDay: 18
+  beginMonth: June
+
+- type: holiday
+  id: FathersDay
+  name: Father's Day
+  beginMonth: August
+  shouldCelebrate:
+    !type:WeekdayInMonth
+    weekday: Sunday
+    occurrence: 3
+
+- type: holiday
+  id: SummerSolstice
+  name: Summer Solstice
+  beginDay: 21
+  beginMonth: June
+
+- type: holiday
+  id: StonewallRiotsAnniversary
+  name: Stonewall Riots Anniversary
+  beginDay: 28
+  beginMonth: June
+
+- type: holiday
+  id: DoctorDay
+  name: Doctor's Day
+  beginDay: 1
+  beginMonth: July
+
+- type: holiday
+  id: UFODay
+  name: UFO Day
+  beginDay: 2
+  beginMonth: July
+
+- type: holiday
+  id: USIndependenceDay
+  name: US Independence Day
+  beginDay: 4
+  beginMonth: July
+
+- type: holiday
+  id: WritersDay
+  name: Writer's Day
+  beginDay: 8
+  beginMonth: July
+
+- type: holiday
+  id: BastilleDay
+  name: Bastille Day
+  beginDay: 14
+  beginMonth: July
+  greet:
+    !type:Custom
+    text: Do you hear the people sing?
+
+- type: holiday
+  id: FriendshipDay
+  name: Friendship Day
+  beginDay: 30
+  beginMonth: July
+  greet:
+    !type:Custom
+    text: Have a magical Friendship Day!
+
+- type: holiday
+  id: BeerDay
+  name: Beer Day
+  shouldCelebrate:
+    !type:WeekdayInMonth
+    weekday: Friday
+  beginMonth: August
+
+- type: holiday
+  id: TalkLikeAPirateDay
+  name: Talk-Like-a-Pirate Day
+  beginDay: 19
+  beginMonth: September
+  greet:
+    !type:Custom
+    text: "Ye be talkin' like a pirate today or else ye'r walkin' tha plank, matey!"
+
+- type: holiday
+  id: ProgrammersDay
+  name: Programmers' Day
+  shouldCelebrate:
+    !type:DayOfYear
+    dayOfYear: 256
+
+- type: holiday
+  id: BisexualPrideDay
+  name: Bisexual Pride Day
+  beginDay: 23
+  beginMonth: September
+
+- type: holiday
+  id: StupidQuestionsDay
+  name: Stupid-Questions Day
+  beginDay: 28
+  beginMonth: September
+
+- type: holiday
+  id: AnimalsDay
+  name: Animal's Day
+  beginDay: 4
+  beginMonth: October
+
+- type: holiday
+  id: SmilingDay
+  name: Smiling Day
+  beginDay: 7
+  beginMonth: October
+
+- type: holiday
+  id: LesbianDay
+  name: Lesbian Day
+  beginDay: 8
+  beginMonth: October
+
+- type: holiday
+  id: CanadianThanksgiving
+  name: Thanksgiving in Canada
+  beginMonth: October
+  shouldCelebrate:
+    !type:WeekdayInMonth
+    occurrence: 2
+    weekday: Monday
+
+- type: holiday
+  id: SpiritDay
+  name: Spirit Day
+  beginMonth: October
+  shouldCelebrate:
+    !type:WeekdayInMonth
+    occurrence: 3
+    weekday: Thursday
+
+- type: holiday
+  id: Halloween
+  name: Halloween
+  beginDay: 31
+  beginMonth: October
+  greet:
+    !type:Custom
+    text: Have a spooky Halloween!
+
+- type: holiday
+  id: VeganDay
+  name: Vegan Day
+  beginDay: 1
+  beginMonth: November
+
+- type: holiday
+  id: ArmisticeDay
+  name: Armistice Day
+  beginDay: 11
+  beginMonth: November
+
+- type: holiday
+  id: KindnessDay
+  name: Kindness Day
+  beginDay: 13
+  beginMonth: November
+  greet:
+    !type:Custom
+    text: Go do some random acts of kindness for a stranger!
+
+- type: holiday
+  id: LifeDay
+  name: Life Day
+  beginDay: 17
+  beginMonth: November
+
+- type: holiday
+  id: FlowersDay
+  name: Flower's Day
+  beginDay: 19
+  beginMonth: November
+
+- type: holiday
+  id: TransgenderRemembranceDay
+  name: Transgender Day of Remembrance
+  beginDay: 20
+  beginMonth: November
+
+- type: holiday
+  id: SayingHelloDay
+  name: Saying Hello Day
+  beginDay: 21
+  beginMonth: November
+
+- type: holiday
+  id: Thanksgiving
+  name: Thanksgiving in the United States
+  beginMonth: November
+  shouldCelebrate:
+    !type:WeekdayInMonth
+    occurrence: 4
+    weekday: Thursday
+
+- type: holiday
+  id: Sinterklaas
+  name: Sinterklaas
+  beginDay: 5
+  beginMonth: December
+
+- type: holiday
+  id: HumanRightsDay
+  name: Human-Rights Day
+  beginDay: 10
+  beginMonth: December
+
+- type: holiday
+  id: MonkeyDay
+  name: Monkey Day
+  beginDay: 14
+  beginMonth: December
+
+- type: holiday
+  id: MayanDoomsday
+  name: Mayan Doomsday Anniversary
+  beginDay: 21
+  beginMonth: December
+
+- type: holiday
+  id: Christmas
+  name: Christmas
+  beginDay: 24
+  endDay: 26
+  beginMonth: December
+  greet:
+    !type:Custom
+    text: Have a merry Christmas!
+
+- type: holiday
+  id: FestiveSeason
+  name: Festive Season
+  beginDay: 1
+  endDay: 31
+  beginMonth: December
+  greet:
+    !type:Custom
+    text: Have a nice festive season!
+
+- type: holiday
+  id: BoxingDay
+  name: Boxing Day
+  beginDay: 26
+  beginMonth: December
+
+- type: holiday
+  id: FridayThirteenth
+  name: Friday the 13th
+  shouldCelebrate:
+    !type:FridayThirteenth { }

SpaceStation14.sln.DotSettings

@@ -86,6 +86,7 @@
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Collidable/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Collidables/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=comms/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Computus/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Constructible/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Cooldowns/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Diethylamine/@EntryIndexedValue">True</s:Boolean>