upd

Code/Inventory/Usable/AmmoUseableBase.cs

@@ -6,8 +6,7 @@ public abstract class AmmoUseableBase : UseableBase
 
 	private InventoryItem FindAmmoItem()
 	{
-		// var ammoDefinition = new InventoryItemDefinition();
-
+		//По типу патрон поиск + енум типа патрон
 		return Dedugan.Local.Inventory.Items.FirstOrDefault( i => i.Definition.Name == "Pistol Ammo" );
 	}
 
@@ -28,7 +27,6 @@ public abstract class AmmoUseableBase : UseableBase
 		if ( ammo != null )
 		{
 			ammo.Count--;
-			Log.Info( $"[AmmoUseableBase] Ammo left: {ammo.Count}" );
 
 			if ( ammo.Count <= 0 )
 			{

Code/Inventory/Usable/PickupItem.cs

@@ -0,0 +1,29 @@
+using Sandbox.Gravity;
+using Sasalka;
+
+namespace Sandbox.UI;
+
+[Icon( "skip_next" )]
+public sealed class PickupItem : InteractionButton
+{
+	[Property] public override string Label { get; set; } = "E";
+
+	public override bool Press( IPressable.Event e )
+	{
+		base.Press( e );
+
+		if ( e.Source.Components.TryGet<Dedugan>( out var dedugan ) )
+		{
+			dedugan.Inventory.AddItem( Components.Get<InventoryItem>() );
+			RpcDestroy();
+		}
+
+		return true;
+	}
+
+	[Rpc.Broadcast]
+	void RpcDestroy()
+	{
+		GameObject.Destroy();
+	}
+}

Code/Inventory/Usable/UseSystem.cs

@@ -2,14 +2,17 @@
 
 public static class UseSystem
 {
-	public static void TryUse( IUseContext context )
+	public static bool TryUse( IUseContext context )
 	{
 		foreach ( var useable in context.GetUsables() )
 		{
 			if ( useable.CanUse() )
 			{
 				useable.Use();
+				return true;
 			}
 		}
+
+		return false;
 	}
 }

Code/Inventory/Usable/UseableBase.cs

@@ -6,11 +6,38 @@ public abstract class UseableBase : Component, IUseable
 {
 	[Property] public float Cooldown { get; set; } = 0.5f;
 
-	private TimeSince _timeSinceUsed;
+	private bool _equipped;
 
-	protected override void OnStart()
+	[Property]
+	public bool Equipped
+	{
+		get => _equipped;
+		set
+		{
+			if ( _equipped != value )
+			{
+				_equipped = value;
+				if ( _equipped )
+				{
+					OnEquip?.Invoke();
+				}
+			}
+		}
+	}
+
+	private TimeSince _timeSinceUsed;
+	public Action OnEquip { get; set; }
+
+	protected override void OnAwake()
 	{
 		_timeSinceUsed = Cooldown;
+
+		OnEquip += OnEquipped;
+	}
+
+	public virtual void OnEquipped()
+	{
+		Log.Info( $"OnEquip {this}" );
 	}
 
 	public virtual bool CanUse()