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BITKit/Scripts/Camera/CameraService.cs

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+using System.Collections.Generic;
+using System.Linq;
+using Godot;
+
+namespace BITKit;
+/// <summary>
+/// 摄像头服务，该服务需要加载到Camera3D节点中
+/// </summary>
+public partial class CameraService:Camera3D
+{
+    public static CameraService Singleton { get; private set; }
+    /// <summary>
+    /// 场景中所有的摄像头
+    /// </summary>
+    private static readonly List<IVirtualCamera> _cameras=new();
+    /// <summary>
+    /// 当前已激活的摄像头
+    /// </summary>
+    public static IVirtualCamera ActiveCamera { get; private set; }
+    /// <summary>
+    /// 注册摄像头
+    /// </summary>
+    /// <param name="camera">摄像头</param>
+    /// <returns></returns>
+    public static bool Register(IVirtualCamera camera) => _cameras.TryAdd(camera);
+    /// <summary>
+    /// 注销摄像头
+    /// </summary>
+    /// <param name="camera">摄像头</param>
+    /// <returns></returns>
+    public static bool UnRegister(IVirtualCamera camera) => _cameras.TryRemove(camera);
+
+    public override void _Ready()
+    {
+        Singleton = this;
+    }
+
+    /// <summary>
+    /// 处理摄像头的位置
+    /// </summary>
+    /// <param name="delta"></param>
+    public override void _Process(double delta)
+    {
+        //获取所有已启用的相机并加载一个虚拟相机的数据
+        foreach (var x in _cameras.Where(x => x.IsEnabled))
+        {
+            //应用相机坐标
+            Position = x.Position;
+            //应用相机角度
+            Rotation = x.Rotation;
+            //已加载相机位置,退出循环
+            break;
+        }
+    }
+}