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Assets/Artists/Scripts/Entities/Inventory/PlayerInventorySwap.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using BITFALL.Entities.Inventory;
+using BITFALL.Items;
+using BITKit;
+using BITKit.Entities;
+using BITKit.Selection;
+using UnityEngine;
+
+namespace BITFALL.Player.Inventory
+{
+	[CustomType(typeof(IEntitySwapItem))]
+	public class PlayerInventorySwap : EntityComponent,IEntitySwapItem
+	{
+		public bool TryGetCurrentContainer(out IBasicItemContainer container)
+		{
+			container = _currentContainer;
+			return container is not null;
+		}
+
+		public event Func<IBasicItemContainer, bool> OpenSwapFactory;
+		public event Action<IBasicItemContainer> OnSwapOpened;
+		public event Action<IBasicItemContainer> OnSwapClosed;
+
+		[Inject] private ISelector _selector;
+		[Inject] private IHealth _health;
+		[Inject] private IEntityInventory _inventory;
+ 
+        private IBasicItemContainer _currentContainer;
+
+		public override void OnStart()
+		{
+			base.OnStart();
+			_selector.OnActive += OnActive;
+			_health.OnSetAlive += OnSetAlive;
+		}
+
+		private void OnSetAlive(bool obj)
+		{
+			if (obj is false)
+			{
+				Close();
+			}
+		}
+
+		private void OnActive(ISelectable obj)
+		{
+			if (_currentContainer is not null) return;
+			if (obj.Transform.TryGetComponent<IBasicItemContainer>(out var container) is false) return;
+			Open(container);
+		}
+
+		public bool Add(IBasicItem item)
+		{
+			if (_currentContainer is null) return false;
+			return _inventory.Add(item) && _currentContainer.Remove(item);
+		}
+		public bool Remove(IBasicItem item)
+		{
+			if (_currentContainer is null) return false;
+			return _currentContainer.Add(item) && _inventory.Remove(item);
+		}
+
+		public bool Open(IBasicItemContainer container)
+		{
+			if (_currentContainer is not null) return false;
+			if (OpenSwapFactory.CastAsFunc().Any(x=>x.Invoke(container) is false)) return false;
+			_currentContainer = container;
+			OnSwapOpened?.Invoke(_currentContainer);
+			return true;
+		}
+
+		public bool Close()
+		{
+			if (_currentContainer is null) return false;
+			OnSwapClosed?.Invoke(_currentContainer);
+			_currentContainer = null;
+			return true;
+		}
+	}
+
+}