适合2D游戏怪物自动寻路,不会攻击人

①首先创建怪物到面板,并添加左右移动坐标点

所谓的左右点就是创建两个空对象,拖到需要移动的位置,当怪物的子物体

②创建脚本拖到怪物上,将左右移动坐标点物体拖入对应位置

效果

代码部分

 1 using System.Collections;
 2 using System.Collections.Generic;
 3 using UnityEngine;
 4 
 5 public class monster_frog : MonoBehaviour
 6 {
 7     public Rigidbody2D rb;                //怪物刚体
 8     public Transform pos_left, pos_right; //怪物移动左右坐标
 9     public float speed;                   //移动速速
10     public bool faceLeft = true;          //脸朝向
11     public float leftx, rightx;           //存储怪物移动左右坐标点
12 
13     // Start is called before the first frame update
14     void Start()
15     {
16         rb = GetComponent<Rigidbody2D>();
17         //断绝当前对象的子父级关系,这样做是为了让子物体的坐标不跟随父物体一起移动
18         transform.DetachChildren();
19         //获取坐标
20         leftx = pos_left.position.x;
21         rightx = pos_right.position.x;
22         //卸磨杀驴,节省资源
23         Destroy(pos_left.gameObject);
24         Destroy(pos_right.gameObject);
25     }
26 
27     // Update is called once per frame
28     void Update()
29     {
30         move();
31     }
32 
33     //移动
34     void move()
35     {
36         //如果脸朝左
37         if (faceLeft)
38         {
39             //就朝左移动,y轴不变
40             rb.velocity = new Vector2(-speed, rb.velocity.y);
41 
42             //如果当前坐标小于左侧坐标
43             if (transform.position.x < leftx)
44             {
45                 //掉头 -1是往右看
46                 transform.localScale = new Vector3(-1, 1, 1);
47                 faceLeft = false;
48             }
49         }
50         //如果脸朝右
51         else
52         {
53             //则向右移动
54             rb.velocity = new Vector2(speed, rb.velocity.y);
55 
56             //掉头,往左
57             if (transform.position.x > rightx)
58             {
59                 transform.localScale = new Vector3(1, 1, 1);
60                 faceLeft = true;
61             }
62         }
63     }
64 }

补充:

怪物需要的组件有:

Rigidbody2D

Circle Collider 2D 圆形碰撞器 目的是不让怪物摔倒

剩下就可以添加对应的动画效果

实现后的效果