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Assets/Artists/Scripts/UX/UXGunModify.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BITFALL.Entities.Equipment;
+using BITFALL.Entities.Inventory;
+using BITFALL.Guns.Modify;
+using BITFALL.Items;
+using BITFALL.Player.Equip;
+using BITKit;
+using BITKit.Entities;
+using BITKit.Entities.Player;
+using BITKit.UX;
+using UnityEngine;
+using UnityEngine.UIElements;
+
+namespace BITFALL.UX
+{
+	public class UXGunModify : MonoBehaviour
+	{
+		[SerializeReference, SubclassSelector] private IPlayerService playerService;
+		private VisualElement _container => UXInventoryInspector.Container;
+
+		[Inject] private IEntityInventory _inventory;
+		[Inject] private IEntityEquipment _equipment;
+		[Inject] private IEquipService _equipService;
+		[Inject] private IUXPopup _popup;
+		private void Start()
+		{
+			UXInventoryInspector.OnInspect += OnInspect;
+			
+			playerService.OnPlayerInitialized += OnPlayerInitialized;
+			destroyCancellationToken.Register(() =>
+			{
+				UXInventoryInspector.OnInspect -= OnInspect;
+				playerService.OnPlayerInitialized -= OnPlayerInitialized;
+			});
+		}
+
+		private void OnPlayerInitialized(Entity obj)
+		{
+			obj.Inject(this);
+		}
+
+		private void OnInspect(IBasicItem obj)
+		{
+			if (_inventory is null)
+			{
+				Debug.LogWarning("Inventory is null");
+				return;
+			}
+			if (obj is null) return;
+			var assetable = obj.GetAssetable();
+			if (obj.TryGetProperty<GunModify>(out var modify) is false) return;
+			
+			var playerItems = _inventory.GetItems();
+
+			foreach (var pair in modify.Modifies)
+			{
+				var container = _container.Create<VisualElement>();
+				var dropdown = container.Create<DropdownField>();
+				
+				container.style.flexDirection = FlexDirection.Row;
+				dropdown.style.flexGrow = 1;
+				
+				dropdown.label = pair.Key.GetType().Name;
+				
+				if (pair.Value is AssetableItem modifyItem)
+				{
+					dropdown.SetValueWithoutNotify(modifyItem.Name);
+				}
+				
+				if (pair.Value is not null)
+				{
+					dropdown.SetEnabled(false);
+					var button = container.Create<Button>();
+					button.text = "卸下";
+					button.clicked += () =>
+					{
+						modify.Remove(pair.Key, out var value);
+						var copy = value.As<ICloneable>().Clone().As<IBasicItem>();
+						if (_inventory.Add(copy))
+						{
+							_popup.Popup("配件已返回背包");
+						}
+						else if (_inventory.DropOrSpawn(copy))
+						{
+							_popup.Popup("背包可能已满,配件已掉落");
+						}
+						
+						UXInventoryInspector.Entry(obj);
+						RebuildPlayerLayout();
+					};
+				}
+				else
+				{
+					
+
+					var attachments = (
+						from item in playerItems
+						where item.GetAssetable() is AssetableAttachment attachment &&
+						      attachment.Type.GetType().IsInstanceOfType(pair.Key)
+						select item
+					).ToArray();
+
+					if (attachments.Length is 0 && pair.Value is null)
+					{
+						dropdown.SetValueWithoutNotify("无可用配件");
+						dropdown.SetEnabled(false);
+					}
+
+					dropdown.choices = attachments.Select(item => item.Name).ToList();
+
+					var nextAttachmentList = attachments.ToList();
+
+					dropdown.RegisterValueChangedCallback(x =>
+					{
+						var next = nextAttachmentList[dropdown.index];
+						if (_inventory.Remove(next))
+						{
+							var nextAsset = next.GetAssetable();
+							modify.Add(pair.Key, nextAsset);
+							_popup.Popup($"配件{nextAsset.name}已装备在{obj.Name}");
+						}
+					
+						UXInventoryInspector.Entry(obj);
+						RebuildPlayerLayout();
+					});
+				}
+			}
+		}
+		private async void RebuildPlayerLayout()
+		{
+			_equipService.AllowEquip.AddDisableElements(this);
+			await Task.Delay(100, destroyCancellationToken);
+			_equipService.AllowEquip.RemoveDisableElements(this);
+		}
+	}
+
+}