Pow3r: stage 1 (#4208)

Co-authored-by: 20kdc <asdd2808@gmail.com>

Content.Client/NodeContainer/NodeVisCommand.cs

@@ -0,0 +1,56 @@
+using Content.Client.Administration.Managers;
+using Content.Shared.Administration;
+using Robust.Shared.Console;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+
+namespace Content.Client.NodeContainer
+{
+    public sealed class NodeVisCommand : IConsoleCommand
+    {
+        public string Command => "nodevis";
+        public string Description => "Toggles node group visualization";
+        public string Help => "";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            var adminMan = IoCManager.Resolve<IClientAdminManager>();
+            if (!adminMan.HasFlag(AdminFlags.Debug))
+            {
+                shell.WriteError("You need +DEBUG for this command");
+                return;
+            }
+
+            var sys = EntitySystem.Get<NodeGroupSystem>();
+            sys.SetVisEnabled(!sys.VisEnabled);
+        }
+    }
+
+    public sealed class NodeVisFilterCommand : IConsoleCommand
+    {
+        public string Command => "nodevisfilter";
+        public string Description => "Toggles showing a specific group on nodevis";
+        public string Help => "Usage: nodevis [filter]\nOmit filter to list currently masked-off";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            var sys = EntitySystem.Get<NodeGroupSystem>();
+
+            if (args.Length == 0)
+            {
+                foreach (var filtered in sys.Filtered)
+                {
+                    shell.WriteLine(filtered);
+                }
+            }
+            else
+            {
+                var filter = args[0];
+                if (!sys.Filtered.Add(filter))
+                {
+                    sys.Filtered.Remove(filter);
+                }
+            }
+        }
+    }
+}