在Unity2D中实现人物攻击（代码）

1.为Player添加一个子对象并为子对象添加Polygon Collider 2D，在Polygon Collider 2D中选中Is Trigger，根据攻击动画调整Collider大小。
2.添加PlayerAttack脚本，拖到添加的子对象上
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerAttack : MonoBehaviour
{
public int damage;
public float time;
public float startTime;
private Animator anim;
private PolygonCollider2D collider2D;
// Start is called before the first frame update
void Start()
{
anim = GameObject.FindGameObjectWithTag(“Player”).GetComponent();
collider2D = GetComponent();
}

// Update is called once per frame
void Update()
{
    Attack();
}

void Attack()
{
    if (Input.GetButtonDown("Attack"))
    {
        collider2D.enabled = true;
        anim.SetTrigger("Attack");
        StartCoroutine(DisableHitBox());
    }
}


IEnumerator StartAttack()
{
    yield return new WaitForSeconds(startTime);
    collider2D.enabled = true;
    StartCoroutine(DisableHitBox());
}
IEnumerator DisableHitBox()
{
    yield return new WaitForSeconds(time);
    collider2D.enabled = false;
}

}`
3.在inspector页面，根据动画调整开始和结束时间，以及伤害。