From 07e11dda25dd1324f864c43b56e0416017bf9a8c Mon Sep 17 00:00:00 2001
From: pathetic meowmeow <uhhadd@gmail.com>
Date: Mon, 24 Feb 2025 01:33:22 -0500
Subject: [PATCH] Port respawning from Frontierstation/Corvax (#3021)

---
 .../Systems/Ghost/GhostUIController.cs        |  50 ++++++
 .../Systems/Ghost/Widgets/GhostGui.xaml       |   1 +
 .../Systems/Ghost/Widgets/GhostGui.xaml.cs    |  37 +++++
 .../_Corvax/Respawn/RespawnSystem.cs          |  22 +++
 .../Controls/GhostRespawnRulesWindow.xaml     |  25 +++
 .../Controls/GhostRespawnRulesWindow.xaml.cs  |  29 ++++
 .../_Corvax/Respawn/RespawnSystem.cs          | 151 ++++++++++++++++++
 .../_NF/Commands/GhostRespawnCommand.cs       |  71 ++++++++
 .../_Corvax/Respawn/RespawnResetEvent.cs      |   9 ++
 Content.Shared/_NF/CCVar/NFCCVars.cs          |  28 ++++
 .../en-US/_NF/respawn/respawn-system.ftl      |  16 ++
 11 files changed, 439 insertions(+)
 create mode 100644 Content.Client/_Corvax/Respawn/RespawnSystem.cs
 create mode 100644 Content.Client/_NF/UserInterface/Systems/Ghost/Controls/GhostRespawnRulesWindow.xaml
 create mode 100644 Content.Client/_NF/UserInterface/Systems/Ghost/Controls/GhostRespawnRulesWindow.xaml.cs
 create mode 100644 Content.Server/_Corvax/Respawn/RespawnSystem.cs
 create mode 100644 Content.Server/_NF/Commands/GhostRespawnCommand.cs
 create mode 100644 Content.Shared/_Corvax/Respawn/RespawnResetEvent.cs
 create mode 100644 Content.Shared/_NF/CCVar/NFCCVars.cs
 create mode 100644 Resources/Locale/en-US/_NF/respawn/respawn-system.ftl

diff --git a/Content.Client/UserInterface/Systems/Ghost/GhostUIController.cs b/Content.Client/UserInterface/Systems/Ghost/GhostUIController.cs
index 53779ea41c..04eb6018c4 100644
--- a/Content.Client/UserInterface/Systems/Ghost/GhostUIController.cs
+++ b/Content.Client/UserInterface/Systems/Ghost/GhostUIController.cs
@@ -3,8 +3,13 @@ using Content.Client.Ghost;
 using Content.Client.UserInterface.Systems.Gameplay;
 using Content.Client.UserInterface.Systems.Ghost.Widgets;
 using Content.Shared.Ghost;
+using Robust.Client.Console; // Frontier
+using Robust.Shared.Console; // Frontier
 using Robust.Client.UserInterface;
 using Robust.Client.UserInterface.Controllers;
+using Content.Client._Corvax.Respawn; // Frontier
+using Content.Shared._NF.CCVar; // Frontier
+using Robust.Shared.Configuration; // Frontier
 
 namespace Content.Client.UserInterface.Systems.Ghost;
 
@@ -12,8 +17,11 @@ namespace Content.Client.UserInterface.Systems.Ghost;
 public sealed class GhostUIController : UIController, IOnSystemChanged<GhostSystem>
 {
     [Dependency] private readonly IEntityNetworkManager _net = default!;
+    [Dependency] private readonly IConsoleHost _consoleHost = default!; // Frontier
+    [Dependency] private readonly IConfigurationManager _cfg = default!; // Frontier
 
     [UISystemDependency] private readonly GhostSystem? _system = default;
+    [UISystemDependency] private readonly RespawnSystem? _respawn = default; // Frontier
 
     private GhostGui? Gui => UIManager.GetActiveUIWidgetOrNull<GhostGui>();
 
@@ -56,6 +64,24 @@ public sealed class GhostUIController : UIController, IOnSystemChanged<GhostSyst
         system.GhostRoleCountUpdated -= OnRoleCountUpdated;
     }
 
+    // Begin Frontier
+    public void OnSystemLoaded(RespawnSystem system)
+    {
+        system.RespawnReseted += OnRespawnReseted;
+    }
+
+    public void OnSystemUnloaded(RespawnSystem system)
+    {
+        system.RespawnReseted -= OnRespawnReseted;
+    }
+
+    private void OnRespawnReseted()
+    {
+        UpdateGui();
+        UpdateRespawn(_respawn?.RespawnResetTime);
+    }
+    // End Frontier
+
     public void UpdateGui()
     {
         if (Gui == null)
@@ -67,6 +93,13 @@ public sealed class GhostUIController : UIController, IOnSystemChanged<GhostSyst
         Gui.Update(_system?.AvailableGhostRoleCount, _system?.Player?.CanReturnToBody);
     }
 
+    // Begin Frontier
+    private void UpdateRespawn(TimeSpan? timeOfDeath)
+    {
+        Gui?.UpdateRespawn(timeOfDeath);
+    }
+    // End Frontier
+
     private void OnPlayerRemoved(GhostComponent component)
     {
         Gui?.Hide();
@@ -83,6 +116,7 @@ public sealed class GhostUIController : UIController, IOnSystemChanged<GhostSyst
             return;
 
         Gui.Visible = true;
+        UpdateRespawn(_respawn?.RespawnResetTime); // Frontier
         UpdateGui();
     }
 
@@ -127,10 +161,18 @@ public sealed class GhostUIController : UIController, IOnSystemChanged<GhostSyst
         Gui.GhostRolesPressed += GhostRolesPressed;
         Gui.TargetWindow.WarpClicked += OnWarpClicked;
         Gui.TargetWindow.OnGhostnadoClicked += OnGhostnadoClicked;
+        Gui.GhostRespawnPressed += GuiOnGhostRespawnPressed; // Frontier
 
         UpdateGui();
     }
 
+    // Begin Frontier
+    private void GuiOnGhostRespawnPressed()
+    {
+        _consoleHost.ExecuteCommand("ghostrespawn");
+    }
+    // End Frontier
+
     public void UnloadGui()
     {
         if (Gui == null)
@@ -140,6 +182,7 @@ public sealed class GhostUIController : UIController, IOnSystemChanged<GhostSyst
         Gui.ReturnToBodyPressed -= ReturnToBody;
         Gui.GhostRolesPressed -= GhostRolesPressed;
         Gui.TargetWindow.WarpClicked -= OnWarpClicked;
+        Gui.GhostRespawnPressed -= GuiOnGhostRespawnPressed; // Frontier
 
         Gui.Hide();
     }
@@ -160,4 +203,11 @@ public sealed class GhostUIController : UIController, IOnSystemChanged<GhostSyst
     {
         _system?.OpenGhostRoles();
     }
+
+    // Begin Frontier
+    private void RespawnPressed()
+    {
+        IoCManager.Resolve<IClientConsoleHost>().RemoteExecuteCommand(null, "ghostrespawn");
+    }
+    // End Frontier
 }
diff --git a/Content.Client/UserInterface/Systems/Ghost/Widgets/GhostGui.xaml b/Content.Client/UserInterface/Systems/Ghost/Widgets/GhostGui.xaml
index 0f65debb4e..3f111264ee 100644
--- a/Content.Client/UserInterface/Systems/Ghost/Widgets/GhostGui.xaml
+++ b/Content.Client/UserInterface/Systems/Ghost/Widgets/GhostGui.xaml
@@ -5,5 +5,6 @@
         <Button Name="ReturnToBodyButton" Text="{Loc ghost-gui-return-to-body-button}" />
         <Button Name="GhostWarpButton" Text="{Loc ghost-gui-ghost-warp-button}" />
         <Button Name="GhostRolesButton" />
+        <Button Name="GhostRespawnButton" Text="{Loc ghost-gui-respawn}" /> <!-- Frontier -->
     </BoxContainer>
 </widgets:GhostGui>
diff --git a/Content.Client/UserInterface/Systems/Ghost/Widgets/GhostGui.xaml.cs b/Content.Client/UserInterface/Systems/Ghost/Widgets/GhostGui.xaml.cs
index 0f64e8a275..401e23ebbd 100644
--- a/Content.Client/UserInterface/Systems/Ghost/Widgets/GhostGui.xaml.cs
+++ b/Content.Client/UserInterface/Systems/Ghost/Widgets/GhostGui.xaml.cs
@@ -3,29 +3,42 @@ using Content.Client.UserInterface.Systems.Ghost.Controls;
 using Robust.Client.AutoGenerated;
 using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Timing; // Frontier
+using Robust.Shared.Configuration; // Frontier
+using Content.Client._NF.UserInterface.Systems.Ghost.Controls; // Frontier
 
 namespace Content.Client.UserInterface.Systems.Ghost.Widgets;
 
 [GenerateTypedNameReferences]
 public sealed partial class GhostGui : UIWidget
 {
+    [Dependency] private readonly IGameTiming _gameTiming = default!; // Frontier
+    [Dependency] private readonly IConfigurationManager _configurationManager = default!; // Frontier
+
+    private TimeSpan? _respawnTime; // Frontier
+
     public GhostTargetWindow TargetWindow { get; }
+    public GhostRespawnRulesWindow RulesWindow { get; } // Frontier
 
     public event Action? RequestWarpsPressed;
     public event Action? ReturnToBodyPressed;
     public event Action? GhostRolesPressed;
+    public event Action? GhostRespawnPressed; // Frontier
 
     public GhostGui()
     {
         RobustXamlLoader.Load(this);
 
         TargetWindow = new GhostTargetWindow();
+        RulesWindow = new GhostRespawnRulesWindow(); // Frontier
+        RulesWindow.RespawnButton.OnPressed += _ => GhostRespawnPressed?.Invoke(); // Frontier
 
         MouseFilter = MouseFilterMode.Ignore;
 
         GhostWarpButton.OnPressed += _ => RequestWarpsPressed?.Invoke();
         ReturnToBodyButton.OnPressed += _ => ReturnToBodyPressed?.Invoke();
         GhostRolesButton.OnPressed += _ => GhostRolesPressed?.Invoke();
+        GhostRespawnButton.OnPressed += _ => RulesWindow.OpenCentered(); // Frontier
     }
 
     public void Hide()
@@ -34,6 +47,13 @@ public sealed partial class GhostGui : UIWidget
         Visible = false;
     }
 
+    // Begin Frontier
+    public void UpdateRespawn(TimeSpan? respawnTime)
+    {
+        _respawnTime = respawnTime;
+    }
+    // End Frontier
+
     public void Update(int? roles, bool? canReturnToBody)
     {
         ReturnToBodyButton.Disabled = !canReturnToBody ?? true;
@@ -54,6 +74,23 @@ public sealed partial class GhostGui : UIWidget
         TargetWindow.Populate();
     }
 
+    // Begin Frontier
+    protected override void FrameUpdate(FrameEventArgs args)
+    {
+        if (_respawnTime is null || _gameTiming.CurTime > _respawnTime)
+        {
+            GhostRespawnButton.Text = Loc.GetString("ghost-gui-respawn-button-allowed");
+            GhostRespawnButton.Disabled = false;
+        }
+        else
+        {
+            double delta = (_respawnTime.Value - _gameTiming.CurTime).TotalSeconds;
+            GhostRespawnButton.Text = Loc.GetString("ghost-gui-respawn-button-denied", ("time", $"{delta:f1}"));
+            GhostRespawnButton.Disabled = true;
+        }
+    }
+    // End Frontier
+
     protected override void Dispose(bool disposing)
     {
         base.Dispose(disposing);
diff --git a/Content.Client/_Corvax/Respawn/RespawnSystem.cs b/Content.Client/_Corvax/Respawn/RespawnSystem.cs
new file mode 100644
index 0000000000..6eb31028c6
--- /dev/null
+++ b/Content.Client/_Corvax/Respawn/RespawnSystem.cs
@@ -0,0 +1,22 @@
+using Content.Shared._Corvax.Respawn;
+
+namespace Content.Client._Corvax.Respawn;
+
+public sealed class RespawnSystem : EntitySystem
+{
+    public TimeSpan? RespawnResetTime { get; private set; }
+
+    public event Action? RespawnReseted;
+
+    public override void Initialize()
+    {
+        SubscribeNetworkEvent<RespawnResetEvent>(OnRespawnReset);
+    }
+
+    private void OnRespawnReset(RespawnResetEvent e)
+    {
+        RespawnResetTime = e.Time;
+
+        RespawnReseted?.Invoke();
+    }
+}
diff --git a/Content.Client/_NF/UserInterface/Systems/Ghost/Controls/GhostRespawnRulesWindow.xaml b/Content.Client/_NF/UserInterface/Systems/Ghost/Controls/GhostRespawnRulesWindow.xaml
new file mode 100644
index 0000000000..cead7c3b54
--- /dev/null
+++ b/Content.Client/_NF/UserInterface/Systems/Ghost/Controls/GhostRespawnRulesWindow.xaml
@@ -0,0 +1,25 @@
+<controls:FancyWindow xmlns="https://spacestation14.io"
+    xmlns:controls="clr-namespace:Content.Client.UserInterface.Controls"
+    xmlns:graphics="clr-namespace:Robust.Client.Graphics;assembly=Robust.Client"
+    Title="{Loc 'ghost-respawn-rules-window-title'}"
+    MinSize="500 350">
+    <ScrollContainer VerticalExpand="True" HorizontalExpand="True" HScrollEnabled="False" Margin="5">
+        <PanelContainer StyleClasses="Inset">
+            <PanelContainer.PanelOverride>
+                <graphics:StyleBoxFlat BackgroundColor="#303133"/>
+            </PanelContainer.PanelOverride>
+
+            <BoxContainer Orientation="Vertical" VerticalExpand="True" SeparationOverride="5">
+                <PanelContainer Name="TextContainer" StyleClasses="Inset" Margin="5">
+                    <PanelContainer.PanelOverride>
+                        <!-- <graphics:StyleBoxFlat BackgroundColor="#464950"/> -->
+                        <graphics:StyleBoxFlat BackgroundColor="#303133"/>
+                    </PanelContainer.PanelOverride>
+                </PanelContainer>
+
+                <Control VerticalExpand="True" VerticalAlignment="Stretch" />
+                <Button Name="ConfirmRespawnButton" Text="{Loc 'ghost-respawn-rules-window-confirm-button'}" Margin="5" />
+            </BoxContainer>
+        </PanelContainer>
+    </ScrollContainer>
+</controls:FancyWindow>
diff --git a/Content.Client/_NF/UserInterface/Systems/Ghost/Controls/GhostRespawnRulesWindow.xaml.cs b/Content.Client/_NF/UserInterface/Systems/Ghost/Controls/GhostRespawnRulesWindow.xaml.cs
new file mode 100644
index 0000000000..2241e7bfc5
--- /dev/null
+++ b/Content.Client/_NF/UserInterface/Systems/Ghost/Controls/GhostRespawnRulesWindow.xaml.cs
@@ -0,0 +1,29 @@
+using Content.Client.UserInterface.Controls;
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Utility;
+
+namespace Content.Client._NF.UserInterface.Systems.Ghost.Controls
+{
+    [GenerateTypedNameReferences]
+    public sealed partial class GhostRespawnRulesWindow : FancyWindow
+    {
+        public PanelContainer RulesContainer => TextContainer;
+        public RichTextLabel RulesLabel = new() { Margin = new Thickness(5, 5, 5, 5) };
+        public Button RespawnButton => ConfirmRespawnButton;
+
+        public GhostRespawnRulesWindow()
+        {
+            RobustXamlLoader.Load(this);
+
+            var message = new FormattedMessage();
+            message.AddMarkup(Loc.GetString("ghost-respawn-rules-window-rules"));
+            RulesLabel.SetMessage(message);
+            RulesContainer.AddChild(RulesLabel);
+            RulesLabel.SetPositionFirst();
+
+            RespawnButton.OnPressed += _ => Close();
+        }
+    }
+}
diff --git a/Content.Server/_Corvax/Respawn/RespawnSystem.cs b/Content.Server/_Corvax/Respawn/RespawnSystem.cs
new file mode 100644
index 0000000000..19736de2c5
--- /dev/null
+++ b/Content.Server/_Corvax/Respawn/RespawnSystem.cs
@@ -0,0 +1,151 @@
+using System.Runtime.InteropServices;
+using Content.Server.Ghost.Roles.Components;
+using Content.Shared._Corvax.Respawn;
+using Content.Shared.Mind.Components;
+using Content.Shared.Mobs;
+using Content.Shared.Mobs.Components;
+using Robust.Server.Player;
+using Robust.Shared.Network;
+using Robust.Shared.Timing;
+using Content.Shared._NF.CCVar; // Frontier
+using Robust.Shared.Configuration; // Frontier
+using Robust.Shared.Player; // Frontier
+using Content.Shared.Ghost; // Frontier
+using Content.Server.Administration.Managers; // Frontier
+using Content.Server.Administration; // Frontier
+using Content.Shared.GameTicking; // Frontier
+
+namespace Content.Server._Corvax.Respawn;
+
+public sealed class RespawnSystem : EntitySystem
+{
+    [Dependency] private readonly IPlayerManager _player = default!;
+    [Dependency] private readonly IGameTiming _timing = default!;
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
+    [Dependency] private readonly IAdminManager _admin = default!;
+
+    private float _respawnTime = 0f;
+
+    // Frontier: struct for respawn lookup
+    private sealed class RespawnData
+    {
+        public TimeSpan RespawnTime; // The next time the user can respawn.
+    }
+    // End Frontier
+
+    [ViewVariables]
+    private Dictionary<NetUserId, RespawnData> _respawnInfo = new(); // Frontier: struct for complete respawn info
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<MindContainerComponent, MobStateChangedEvent>(OnMobStateChanged);
+        SubscribeLocalEvent<MindContainerComponent, MindRemovedMessage>(OnMindRemoved);
+        SubscribeLocalEvent<RoundRestartCleanupEvent>(OnRoundRestart); // Frontier
+
+        _admin.OnPermsChanged += OnAdminPermsChanged; // Frontier
+        _player.PlayerStatusChanged += PlayerStatusChanged; // Frontier
+
+        Subs.CVar(_cfg, NFCCVars.RespawnTime, OnRespawnCryoTimeChanged, true); // Frontier
+    }
+
+    // Frontier: CVar setters
+    private void OnRespawnCryoTimeChanged(float value)
+    {
+        _respawnTime = value;
+    }
+    // End Frontier
+
+    private void OnMobStateChanged(EntityUid entity, MindContainerComponent component, MobStateChangedEvent e)
+    {
+        if (e.NewMobState != MobState.Dead)
+            return;
+
+        if (!_player.TryGetSessionByEntity(entity, out var session))
+            return;
+
+        var respawnData = GetRespawnData(session.UserId);
+        SetRespawnTime(session.UserId, ref respawnData, _timing.CurTime + TimeSpan.FromSeconds(_respawnTime));
+    }
+
+    private void OnMindRemoved(EntityUid entity, MindContainerComponent _, MindRemovedMessage e)
+    {
+        if (e.Mind.Comp.UserId is null)
+            return;
+
+        // Mob is dead, don't reset spawn timer twice
+        if (TryComp<MobStateComponent>(entity, out var state) && state.CurrentState == MobState.Dead)
+            return;
+
+        // Frontier: extra conditions for respawn lenience
+        if (HasComp<GhostRoleComponent>(entity)) // Don't penalize user for exiting ghost roles
+            return; // Frontier: don't penalize user for exiting ghost roles
+
+        if (HasComp<GhostComponent>(entity)) // Don't penalize user for reobserving
+            return;
+
+        if (e.Mind.Comp.Session != null && _admin.IsAdmin(e.Mind.Comp.Session)) // Admins get free respawns
+            return;
+
+        // Get respawn info
+        var userId = e.Mind.Comp.UserId.Value;
+        var respawnInfo = GetRespawnData(userId);
+        // End Frontier
+
+        SetRespawnTime(userId, ref respawnInfo, _timing.CurTime + TimeSpan.FromSeconds(_respawnTime));
+    }
+
+    // Frontier: admin permissions handler: clear respawn data for admins
+    private void OnAdminPermsChanged(AdminPermsChangedEventArgs args)
+    {
+        if (args.IsAdmin)
+        {
+            var respawnData = GetRespawnData(args.Player.UserId);
+            SetRespawnTime(args.Player.UserId, ref respawnData, TimeSpan.Zero);
+        }
+    }
+
+    // Frontier: respawn handler: adjusts respawn and cryo timers.
+    public void Respawn(ICommonSession session)
+    {
+        var respawnData = GetRespawnData(session.UserId);
+    }
+
+    private void SetRespawnTime(NetUserId user, ref RespawnData data, TimeSpan nextSpawn, TimeSpan? cryoTime = null) // Frontier: Reset<Set, added cryoTime, time changed to be time of next respawn, not time of death
+    {
+        data.RespawnTime = nextSpawn;
+
+        if (_player.TryGetSessionById(user, out var session)) // Frontier: try first, if no valid session, nothing to do.
+            RaiseNetworkEvent(new RespawnResetEvent(nextSpawn), session);
+    }
+
+    public TimeSpan? GetRespawnTime(NetUserId user) // Frontier: GetRespawnResetTime<GetRespawnTime
+    {
+        return _respawnInfo.TryGetValue(user, out var data) ? data.RespawnTime : null;
+    }
+
+    // Frontier: return a writable reference
+    private ref RespawnData GetRespawnData(NetUserId player)
+    {
+        if (!_respawnInfo.ContainsKey(player))
+            _respawnInfo[player] = new RespawnData();
+        return ref CollectionsMarshal.GetValueRefOrNullRef(_respawnInfo, player);
+    }
+
+    // Frontier: send ghost timer on player connection
+    private void PlayerStatusChanged(object? _, SessionStatusEventArgs args)
+    {
+        var session = args.Session;
+
+        if (args.NewStatus == Robust.Shared.Enums.SessionStatus.InGame &&
+            _respawnInfo.ContainsKey(session.UserId))
+        {
+            RaiseNetworkEvent(new RespawnResetEvent(_respawnInfo[session.UserId].RespawnTime), session);
+        }
+    }
+
+    // Frontier: reset game state, we have a new round.
+    private void OnRoundRestart(RoundRestartCleanupEvent ev)
+    {
+        _respawnInfo.Clear();
+    }
+    // End Frontier
+}
diff --git a/Content.Server/_NF/Commands/GhostRespawnCommand.cs b/Content.Server/_NF/Commands/GhostRespawnCommand.cs
new file mode 100644
index 0000000000..7a7aeed1fd
--- /dev/null
+++ b/Content.Server/_NF/Commands/GhostRespawnCommand.cs
@@ -0,0 +1,71 @@
+using Content.Server._Corvax.Respawn;
+using Content.Server.GameTicking;
+using Content.Server.Mind;
+using Content.Shared.Administration;
+using Content.Shared.CCVar;
+using Content.Shared.Ghost;
+using Content.Shared.Mind;
+using Content.Shared._NF.CCVar;
+using Content.Shared.Roles;
+using Robust.Server.Player;
+using Robust.Shared.Configuration;
+using Robust.Shared.Console;
+using Robust.Shared.Player;
+using Robust.Shared.Timing;
+
+namespace Content.Server._NF.Commands;
+
+[AnyCommand()]
+public sealed class GhostRespawnCommand : IConsoleCommand
+{
+    [Dependency] private readonly IGameTiming _gameTiming = default!;
+    [Dependency] private readonly IEntityManager _entityManager = default!;
+    [Dependency] private readonly IConfigurationManager _configurationManager = default!;
+    [Dependency] private readonly IEntitySystemManager _entity = default!;
+
+    public string Command => "ghostrespawn";
+    public string Description => "Allows the player to return to the lobby if they've been dead long enough, allowing re-entering the round AS ANOTHER CHARACTER.";
+    public string Help => $"{Command}";
+
+    public void Execute(IConsoleShell shell, string argStr, string[] args)
+    {
+        if (!_configurationManager.GetCVar(NFCCVars.RespawnEnabled))
+        {
+            shell.WriteLine("Respawning is disabled, ask an admin to respawn you.");
+            return;
+        }
+
+        if (shell.Player is null)
+        {
+            shell.WriteLine("You cannot run this from the console!");
+            return;
+        }
+
+        if (shell.Player.AttachedEntity is null)
+        {
+            shell.WriteLine("You cannot run this in the lobby, or without an entity.");
+            return;
+        }
+
+        if (!_entityManager.TryGetComponent<GhostComponent>(shell.Player.AttachedEntity, out var ghost))
+        {
+            shell.WriteLine("You are not a ghost.");
+            return;
+        }
+
+        var respawnResetTime = _entity.GetEntitySystem<RespawnSystem>().GetRespawnTime(shell.Player.UserId);
+
+        if (respawnResetTime is not null)
+        {
+            if (_gameTiming.CurTime < respawnResetTime.Value)
+            {
+                var timeLeft = (respawnResetTime.Value - _gameTiming.CurTime).TotalSeconds;
+                shell.WriteLine($"You haven't been dead long enough. You can respawn in {timeLeft} seconds.");
+                return;
+            }
+        }
+
+        var gameTicker = _entityManager.EntitySysManager.GetEntitySystem<GameTicker>();
+        gameTicker.Respawn(shell.Player);
+    }
+}
diff --git a/Content.Shared/_Corvax/Respawn/RespawnResetEvent.cs b/Content.Shared/_Corvax/Respawn/RespawnResetEvent.cs
new file mode 100644
index 0000000000..ee090458e4
--- /dev/null
+++ b/Content.Shared/_Corvax/Respawn/RespawnResetEvent.cs
@@ -0,0 +1,9 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared._Corvax.Respawn;
+
+[Serializable, NetSerializable]
+public sealed class RespawnResetEvent(TimeSpan? time) : EntityEventArgs
+{
+    public readonly TimeSpan? Time = time;
+}
diff --git a/Content.Shared/_NF/CCVar/NFCCVars.cs b/Content.Shared/_NF/CCVar/NFCCVars.cs
new file mode 100644
index 0000000000..fa48fe9536
--- /dev/null
+++ b/Content.Shared/_NF/CCVar/NFCCVars.cs
@@ -0,0 +1,28 @@
+using Robust.Shared.Configuration;
+
+namespace Content.Shared._NF.CCVar;
+
+[CVarDefs]
+public sealed class NFCCVars
+{
+    /*
+     *  Respawn
+    */
+    /// <summary>
+    /// Whether or not respawning is enabled.
+    /// </summary>
+    public static readonly CVarDef<bool> RespawnEnabled =
+        CVarDef.Create("nf14.respawn.enabled", true, CVar.SERVER | CVar.REPLICATED);
+
+    /// <summary>
+    /// Respawn time, how long the player has to wait in seconds after going into cryosleep. Should be small, misclicks happen.
+    /// </summary>
+    public static readonly CVarDef<float> RespawnCryoFirstTime =
+        CVarDef.Create("nf14.respawn.cryo_first_time", 20.0f, CVar.SERVER | CVar.REPLICATED);
+
+    /// <summary>
+    /// Respawn time, how long the player has to wait in seconds after death, or on subsequent cryo attempts.
+    /// </summary>
+    public static readonly CVarDef<float> RespawnTime =
+        CVarDef.Create("nf14.respawn.time", 1200.0f, CVar.SERVER | CVar.REPLICATED);
+}
diff --git a/Resources/Locale/en-US/_NF/respawn/respawn-system.ftl b/Resources/Locale/en-US/_NF/respawn/respawn-system.ftl
new file mode 100644
index 0000000000..96277c9467
--- /dev/null
+++ b/Resources/Locale/en-US/_NF/respawn/respawn-system.ftl
@@ -0,0 +1,16 @@
+## UI
+ghost-respawn-rules-window-title = Ghost Respawn Rules
+ghost-respawn-rules-window-confirm-button = I understand, respawn me
+ghost-gui-respawn-button-denied = Respawn ({$time}s)
+ghost-gui-respawn-button-allowed = Respawn
+# DeltaV - we have our own rules for respawning
+ghost-respawn-rules-window-rules = Respawning follows our rule B1.3: Follow the new life 
+
+    You MAY NOT respawn as a character who has died this round. This applies to variants of that same character; the character you choose must be entirely new to the station's shift.
+
+    Your newly spawned character is treated as if they are a fresh arrival to the station.
+
+## COMMMANDS
+ghost-respawn-command-desc = Respawns you if you're an eligible ghost.
+ghost-respawn-not-a-ghost = You're not currently ghosted.
+ghost-respawn-ineligible = You're not currently eligible