NoteStar.cs

using SmfNoteTiming;
using System;
using UnityEngine;

namespace Idol
{
    public class NoteStar : MonoBehaviour
    {
        [SerializeField]
        public float seconds;
        [SerializeField]
        public int id;

        public event Action<int, bool, bool> Judged;

        public void SetNote(int id, NoteTiming note)
        {
            this.id = id;
            seconds = note.Seconds;
        }

        void Awake()
        {
            transform.localPosition = Vector3.forward * 10f;
        }

        public void UpdateTime(float t)
        {
            transform.localPosition = Vector3.Lerp(Vector3.forward * 10f, Vector3.zero, t);
        }

        public void Judge()
        {
            const float judgeDistance = 0.3f;

            var success = false;
            var isLeft = false;

            var leftDist = CameraRig.Current.left.transform.position - transform.position;
            var rightDist = CameraRig.Current.right.transform.position - transform.position;

            isLeft = leftDist.sqrMagnitude < rightDist.sqrMagnitude;
            success = Mathf.Min(leftDist.sqrMagnitude, rightDist.sqrMagnitude) < judgeDistance * judgeDistance;

            if (Judged != null) Judged(id, success, isLeft);
        }
    }
}