ichni_Creator_Studio/Assets/Scripts/GameElements/Track/TrackSubmodules/TrackTimeSubmodule.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Ichni.RhythmGame
{
    public class TrackTimeSubmodule : TrackSubmodule
    {
        public float headPercent, tailPercent;
        
        public TrackTimeSubmodule(Track track) : base(track)
        {
            this.track = track;
            this.track.trackTimeSubmodule = this;
        }
    }
    
    public class TrackTimeSubmoduleMovable : TrackTimeSubmodule
    {
        public float trackStartTime;
        public float trackEndTime;
        public float trackTotalTime;
        public float visibleTrackTimeLength;
        public AnimationCurveType animationCurveType;

        public TrackTimeSubmoduleMovable(Track track, float trackStartTime, float trackEndTime,
            float visibleTrackTimeLength, AnimationCurveType animationCurveType) : base(track)
        {
            this.track.trackTimeSubmodule = this;
            this.trackStartTime = trackStartTime;
            this.trackEndTime = trackEndTime;
            this.trackTotalTime = trackEndTime - trackStartTime;
            this.visibleTrackTimeLength = visibleTrackTimeLength;
            this.animationCurveType = animationCurveType;

            track.timeDurationSubmodule.startTime = trackStartTime;
            track.timeDurationSubmodule.endTime = trackEndTime + visibleTrackTimeLength;
        }

        public void UpdateTrackPart()
        {
            float songTime = EditorManager.instance.songModule.songTime;
            
            headPercent = GetTrackPercent(songTime);
            tailPercent = GetTrackPercent(songTime - visibleTrackTimeLength);
            
            if (track.trackRendererSubmodule != null)
            {
                track.trackRendererSubmodule.meshGenerator.clipFrom = tailPercent;
                track.trackRendererSubmodule.meshGenerator.clipTo = headPercent;
            }
        }
        
        public float GetTrackPercent(float songTimeInTime)
        {
            float per = AnimationCurveEvaluator.Evaluate(animationCurveType, (songTimeInTime - trackStartTime) / trackTotalTime);
            return Mathf.Clamp01(per);
        }
    }
    
    public class TrackTimeSubmoduleStatic : TrackTimeSubmodule
    {
        public float trackTotalTime;
        public AnimationCurveType animationCurveType;

        public TrackTimeSubmoduleStatic(Track track, float trackTotalTime, AnimationCurveType animationCurveType) : base(track)
        {
            this.trackTotalTime = trackTotalTime;
            this.animationCurveType = animationCurveType;
            this.headPercent = 0;
            this.tailPercent = 1;
            
            track.timeDurationSubmodule.startTime = -999;
            track.timeDurationSubmodule.endTime = 999;
            //timeDurationSubmodule 根据下辖Note的时间来设置
        }
    }

}