Convention-Unity-Demo/Assets/Scripts/LookAtAnchor.cs

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

namespace Demo.Game
{
    public class LookAtAnchor : Updatement<ScriptableObject>
    {
        public static LookAtAnchor Make()
        {
            return new GameObject().AddComponent<LookAtAnchor>();
        }

        protected override ScriptableObject Lerp(ScriptableObject begin, ScriptableObject end, float t)
        {
            return begin;
        }

        [Content] public ScriptableObject LookAtObject;
        [Content] public bool IsEnableUpdateEveryTick = false;

        protected override void UpdateData(ScriptableObject data)
        {
            if (data != LookAtObject)
            {
                LookAtObject = data;
                transform.LookAt(LookAtObject.transform);
            }
            else if (IsEnableUpdateEveryTick)
            {
                if (LookAtObject != null)
                    transform.LookAt(LookAtObject.transform);
            }
        }

        /// <summary>
        /// 在指定时刻切换面向的物体，并尝试一次更新
        /// </summary>
        [Convention.RScript.Variable.Attr.Method]
        public void Add(float time, ScriptableObject target)
        {
            ManualAddEntry(time, target, default);
        }

        /// <summary>
        /// 启动自动更新，将持续锁定面向的物体并更新
        /// </summary>
        [Convention.RScript.Variable.Attr.Method]
        public void EnableUpdateEveryTick()
        {
            IsEnableUpdateEveryTick = true;
        }
    }
}