Unity角色点击鼠标无攻击反应问题求助（附代码）

问题描述 #

我是Unity和编程新手，完全不清楚问题所在。为制作连击攻击，参考了相关教程视频，但左键点击时角色毫无攻击动作（配图：角色攻击无动作截图）。几乎完全跟着教程操作，为何角色仍不攻击？

以下是我的PlayerCombat脚本代码：

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

public class PlayerCombat : MonoBehaviour
{
    public static PlayerCombat instance;
    public Animator animator;

    public Transform AttackPoint;
    public float AttackRange = 0.5f;
    public LayerMask enemyLayers;

    public int attackDamage = 40;
    public bool canReceiveInput;
    public bool inputReceived;

    private void Awake()
    {
        instance = this;
    }

    void Start()
    {
      
    }
    
    // Update is called once per frame
    void Update()
    {
        Attack();
    }
    public void Attack() 
    {
        if (Input.GetButtonDown("Fire1")) 
        {
           if (canReceiveInput) 
            {
                inputReceived = true;
                canReceiveInput = false;
            }
            else 
            {
                return;
            }
        }
    }

    public void InputManager()
    {
        if (!canReceiveInput) 
        {
            canReceiveInput = true;
        }
        else
        {
            canReceiveInput = false;
        }
    }
}

问题排查与修复 #

• 初始输入权限未开启：canReceiveInput是bool类型，默认值为false，导致第一次点击左键直接跳过逻辑。在Start()方法中添加canReceiveInput = true;，确保游戏启动时允许接收攻击输入。
• 未触发攻击核心逻辑：代码仅标记了inputReceived，但没有调用动画播放、敌人检测与伤害逻辑。在Attack()方法的有效分支中添加：
  • 播放攻击动画：animator.SetTrigger("Attack");（需确保Animator控制器中存在同名触发器）
  • 敌人检测与伤害：使用Physics2D.OverlapCircleAll检测攻击范围内的敌人并调用伤害方法
• InputManager方法未执行：该方法用于切换输入权限以实现连击，但从未被调用。需要在攻击动画的帧事件中绑定此方法，确保攻击动作结束后重新允许输入。
• 简化冗余逻辑：将Attack()中的嵌套判断简化，提升代码可读性：

  public void Attack() 
  {
      if (Input.GetButtonDown("Fire1") && canReceiveInput) 
      {
          inputReceived = true;
          canReceiveInput = false;
          // 攻击核心逻辑写在这里
      }
  }
  

修复后完整代码示例 #

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

public class PlayerCombat : MonoBehaviour
{
    public static PlayerCombat instance;
    public Animator animator;

    public Transform AttackPoint;
    public float AttackRange = 0.5f;
    public LayerMask enemyLayers;

    public int attackDamage = 40;
    public bool canReceiveInput;
    public bool inputReceived;

    private void Awake()
    {
        instance = this;
    }

    void Start()
    {
        // 初始允许接收攻击输入
        canReceiveInput = true;
    }
    
    void Update()
    {
        Attack();
    }
    
    public void Attack() 
    {
        if (Input.GetButtonDown("Fire1") && canReceiveInput) 
        {
            inputReceived = true;
            canReceiveInput = false;
            // 触发攻击动画
            animator.SetTrigger("Attack");
            // 检测并攻击范围内的敌人
            Collider2D[] hitEnemies = Physics2D.OverlapCircleAll(AttackPoint.position, AttackRange, enemyLayers);
            foreach(Collider2D enemy in hitEnemies)
            {
                // 注意：Enemy脚本和TakeDamage方法需自行实现
                enemy.GetComponent<Enemy>().TakeDamage(attackDamage);
            }
        }
    }

    public void InputManager()
    {
        // 简化权限切换逻辑
        canReceiveInput = !canReceiveInput;
    }
}

内容的提问来源于stack exchange，提问作者abnormal