Alex教程每一P的教程原代码加上我自己的理解初步理解写的注释，可供学习Alex教程的人参考
此代码仅为较上一P有所改变的代码

【Unity教程】从0编程制作类银河恶魔城游戏_哔哩哔哩_bilibili

ThurderStrike_Controller.cs

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

public class ThurderStrike_Controller : MonoBehaviour
{
    protected virtual void OnTriggerEnter2D(Collider2D collision)
    {
        if(collision.GetComponent<Enemy>()!= null)
        {
            PlayerStats playerStats = PlayerManager.instance.player.GetComponent<PlayerStats>();
            EnemyStats enemyTarget = collision.GetComponent<EnemyStats>(); 
            playerStats.DoDamage(enemyTarget);
        }
    }
}

ItemEffect.cs

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

[CreateAssetMenu(fileName ="New Item Data",menuName = "Data/Item effect")]
public class ItemEffect : ScriptableObject
{
    public virtual void ExecuteEffect(Transform _enemyPosition)
    {
        Debug.Log("Effect executed");
    }
}

ThurderStrike_Effect.cs

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

[CreateAssetMenu(fileName = "Thurder strike effect", menuName = "Data/Item effect/Thurder strike")]
public class ThurderStrike_Effect : ItemEffect
{
    [SerializeField] private GameObject thurderStrikePrefab;
    public override void ExecuteEffect(Transform _enemyPosition)
    {
        GameObject newThurderStrike = Instantiate(thurderStrikePrefab,_enemyPosition.position,Quaternion.identity);

        Destroy(newThurderStrike, 1);
    }
}

ItemData_Equipment.cs

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

public enum EquipmentType
{
    Weapon,
    Armor,
    Amulet,
    Flask

}

[CreateAssetMenu(fileName = "New Item Data", menuName = "Data/Equipment")]
public class ItemData_Equipment : ItemData
{
    public EquipmentType equipmentType;

    public ItemEffect[] itemEffects;

    [Header("Major stats")]
    public int strength; // 力量 增伤1点 爆伤增加 1% 物抗
    public int agility;// 敏捷 闪避 1% 闪避几率增加 1%
    public int intelligence;// 1 点 魔法伤害 1点魔抗 
    public int vitality;//加血的

    [Header("Offensive stats")]
    public int damage;
    public int critChance;      // 暴击率
    public int critPower;       //150% 爆伤

    [Header("Defensive stats")]
    public int maxHealth;
    public int armor;
    public int evasion;//闪避值
    public int magicResistance;

    [Header("Magic stats")]
    public int fireDamage;
    public int iceDamage;
    public int lightingDamage;

    public void AddModifiers()
    {
        PlayerStats playerStats = PlayerManager.instance.player.GetComponent<PlayerStats>();
        playerStats.strength.AddModifier(strength);
        playerStats.agility.AddModifier(agility);
        playerStats.intelligence.AddModifier(intelligence);
        playerStats.vitality.AddModifier(vitality);

        playerStats.damage.AddModifier(damage);
        playerStats.critChance.AddModifier(critChance);
        playerStats.critPower.AddModifier(critPower);

        playerStats.maxHealth.AddModifier(maxHealth);
        playerStats.armor.AddModifier(armor);
        playerStats.evasion.AddModifier(evasion);
        playerStats.magicResistance.AddModifier(magicResistance);

        playerStats.fireDamage.AddModifier(fireDamage);
        playerStats.iceDamage.AddModifier(iceDamage);
        playerStats.lightingDamage.AddModifier(lightingDamage);
    }

    public void RemoveModifiers()
    {
        PlayerStats playerStats = PlayerManager.instance.player.GetComponent<PlayerStats>();
        playerStats.strength.RemoveModifier(strength);
        playerStats.agility.RemoveModifier(agility);
        playerStats.intelligence.RemoveModifier(intelligence);
        playerStats.vitality.RemoveModifier(vitality);

        playerStats.damage.RemoveModifier(damage);
        playerStats.critChance.RemoveModifier(critChance);
        playerStats.critPower.RemoveModifier(critPower);

        playerStats.maxHealth.RemoveModifier(maxHealth);
        playerStats.armor.RemoveModifier(armor);
        playerStats.evasion.RemoveModifier(evasion);
        playerStats.magicResistance.RemoveModifier(magicResistance);

        playerStats.fireDamage.RemoveModifier(fireDamage);
        playerStats.iceDamage.RemoveModifier(iceDamage);
        playerStats.lightingDamage.RemoveModifier(lightingDamage);

    }

    public void Effect(Transform _enemyPosition)//循环调用Effect类里的Effect的函数
    {
        foreach(var item in itemEffects)
        {
            item.ExecuteEffect(_enemyPosition);
        }
    }
}

PlayerAnimationTrigger.cs

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

public class playerAnimationTriggers : MonoBehaviour
{
    private Player player => GetComponentInParent<Player>();//获得夫组件上的实际存在的Player组件
    private void AnimationTrigger()
    {
        player.AnimationTrigger();
    }
    private void AttackTrigger()
    {
        Collider2D[] colliders = Physics2D.OverlapCircleAll(player.attackCheck.position, player.attackCheckRadius);//创建一个碰撞器组，保存所有圈所碰到的碰撞器
        //https://docs.unity3d.com/2022.3/Documentation/ScriptReference/Physics2D.OverlapCircleAll.html
        foreach(var hit in colliders)//https://blog.csdn.net/m0_52358030/article/details/121722077
        {
            if(hit.GetComponent<Enemy>()!=null)
            {
                EnemyStats _target = hit.GetComponent<EnemyStats>();

                player.stats.DoDamage(_target);//提供一个可以从player调用敌人受伤函数的入口，通过传入受伤敌人的组件

                if(Inventory.instance.GetEquipment(EquipmentType.Weapon) != null)
                Inventory.instance.GetEquipment(EquipmentType.Weapon).Effect(_target.transform);

                // hit.GetComponent<Enemy>().DamageImpact();

            }
        }
    }

    private void ThrowSword()
    {
        SkillManager.instance.sword.CreateSword();
    }
}