基础内容

必要插件安装
缓动曲线和动画基础
ElementFolder，Track与其次级模块，PathNode重构

Assets/Scripts/GameElements/Track/TrackSubmodules/TrackPathSubmodule.cs

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+using System.Collections;
+using System.Collections.Generic;
+using Dreamteck.Splines;
+using Unity.VisualScripting;
+using UnityEngine;
+
+namespace Ichni.RhythmGame
+{
+    public partial class TrackPathSubmodule : TrackSubmodule
+    {
+        public SplineComputer path;
+        public List<PathNode> pathNodeList;
+
+        public Track.TrackSpaceType trackSpaceType;
+        public Track.TrackSamplingType trackSamplingType;
+        public bool isClosed;
+
+        public void NewInitialize(Track track, bool isClosed, Track.TrackSpaceType trackSpaceType,
+            Track.TrackSamplingType trackSamplingType)
+        {
+            this.track = track;
+            this.path = track.AddComponent<SplineComputer>();
+            track.trackPathSubmodule = this;
+            this.pathNodeList = new List<PathNode>();
+            this.trackSpaceType = trackSpaceType;
+            this.trackSamplingType = trackSamplingType;
+            this.isClosed = isClosed;
+
+            SetUpSplineComputer(trackSpaceType, trackSamplingType);
+        }
+    }
+
+    public partial class TrackPathSubmodule
+    {
+        private void SetUpSplineComputer(Track.TrackSpaceType trackSpaceType, Track.TrackSamplingType trackSamplingType)
+        {
+            path.type = (Spline.Type)(int)trackSpaceType;
+            path.sampleMode = (SplineComputer.SampleMode)(int)trackSamplingType;
+            path.space = SplineComputer.Space.Local;
+        }
+
+        public void ClosePath(bool close)
+        {
+            if (close)
+            {
+                path.Close();
+            }
+            else
+            {
+                path.Break();
+            }
+
+            isClosed = close;
+        }
+
+        public void SetTrackSpaceType(int spaceType)
+        {
+            trackSpaceType = (Track.TrackSpaceType)spaceType;
+            path.type = (Spline.Type)spaceType;
+        }
+
+        public void AddPathNode(PathNode point)
+        {
+            path.SetPoint(pathNodeList.Count, point.node, SplineComputer.Space.Local);
+
+            pathNodeList.Add(point);
+        }
+
+        public void SetPathNode(PathNode point)
+        {
+            path.SetPoint(point.index, point.node, SplineComputer.Space.Local);
+        }
+    }
+}