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BITKit/Scripts/ECS/GodotEntitiesService.cs

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+using Godot;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using BITKit.Core.Entites;
+// ReSharper disable All
+
+namespace BITKit;
+/// <summary>
+/// 基于Godot.Node的IEntitiesService实现
+/// </summary>
+public partial class GodotEntitiesService : Node,IEntitiesService
+{
+    public GodotEntitiesService()
+    {
+        DI.Register<IEntitiesService>(this);
+    }
+    private readonly Dictionary<ulong,IEntity> _entities=new ();
+    private CancellationTokenSource _cancellationTokenSource;
+    public IEntity[] Entities => _entities.Values.ToArray();
+    public bool Register(IEntity entity)
+    {
+        return _entities.TryAdd(entity.Id, entity);
+    }
+    public bool UnRegister(IEntity entity)
+    {
+        return _entities.TryRemove(entity.Id);
+    }
+
+    public override void _Ready()
+    {
+        _cancellationTokenSource = new();
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        if(disposing)_cancellationTokenSource.Cancel();
+    }
+
+    public CancellationToken CancellationToken => _cancellationTokenSource.Token;
+
+    public IEntity[] Query<T>() where T : IEntityComponent
+    {
+        return _entities.Values.Where(x => x.TryGetComponent<T>(out _)).ToArray();
+    }
+}