Add command to toggle ghost visibility on the client (#27314)

* Add command to toggle ghost visibility on the client

* Fix description

* Fix index of arg parsing

* Allow setting GhostVisibility directly

(cherry picked from commit cf45005471)

Content.Client/Ghost/Commands/ToggleGhostVisibilityCommand.cs

@@ -0,0 +1,26 @@
+using Robust.Shared.Console;
+
+namespace Content.Client.Ghost.Commands;
+
+public sealed class ToggleGhostVisibilityCommand : IConsoleCommand
+{
+    [Dependency] private readonly IEntitySystemManager _entSysMan = default!;
+
+    public string Command => "toggleghostvisibility";
+    public string Description => "Toggles ghost visibility on the client.";
+    public string Help => "toggleghostvisibility [bool]";
+
+    public void Execute(IConsoleShell shell, string argStr, string[] args)
+    {
+        var ghostSystem = _entSysMan.GetEntitySystem<GhostSystem>();
+
+        if (args.Length != 0 && bool.TryParse(args[0], out var visibility))
+        {
+            ghostSystem.ToggleGhostVisibility(visibility);
+        }
+        else
+        {
+            ghostSystem.ToggleGhostVisibility();
+        }
+    }
+}

Content.Client/Ghost/GhostSystem.cs

@@ -3,7 +3,6 @@ using Content.Shared.Actions;
 using Content.Shared.Ghost;
 using Robust.Client.Console;
 using Robust.Client.GameObjects;
-using Robust.Client.Graphics;
 using Robust.Client.Player;
 using Robust.Shared.Player;
 
@@ -177,9 +176,9 @@ namespace Content.Client.Ghost
             _console.RemoteExecuteCommand(null, "ghostroles");
         }
 
-        public void ToggleGhostVisibility()
+        public void ToggleGhostVisibility(bool? visibility = null)
         {
-            GhostVisibility = !GhostVisibility;
+            GhostVisibility = visibility ?? !GhostVisibility;
         }
     }
 }