Re-organize all projects (#4166)

Content.Client/Inventory/ClientInventorySystem.cs

@@ -0,0 +1,38 @@
+using Content.Client.HUD;
+using Content.Shared.Input;
+using JetBrains.Annotations;
+using Robust.Client.Player;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Input.Binding;
+using Robust.Shared.IoC;
+
+namespace Content.Client.Inventory
+{
+    [UsedImplicitly]
+    public sealed class ClientInventorySystem : EntitySystem
+    {
+        [Dependency] private readonly IGameHud _gameHud = default!;
+        [Dependency] private readonly IPlayerManager _playerManager = default!;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            CommandBinds.Builder
+                .Bind(ContentKeyFunctions.OpenInventoryMenu,
+                    InputCmdHandler.FromDelegate(_ => HandleOpenInventoryMenu()))
+                .Register<ClientInventorySystem>();
+        }
+
+        public override void Shutdown()
+        {
+            CommandBinds.Unregister<ClientInventorySystem>();
+            base.Shutdown();
+        }
+
+        private void HandleOpenInventoryMenu()
+        {
+            _gameHud.InventoryButtonDown = !_gameHud.InventoryButtonDown;
+        }
+    }
+}