unity3D 2D简单的怪物自动寻路

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

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

public class monster_frog : MonoBehaviour
{
    public Rigidbody2D rb;                //怪物刚体
    public Transform pos_left, pos_right; //怪物移动左右坐标
    public float speed;                   //移动速速
    public bool faceLeft = true;          //脸朝向
    public float leftx, rightx;           //存储怪物移动左右坐标点

    // Start is called before the first frame update
    void Start()
    {
        rb = GetComponent<Rigidbody2D>();
        //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
        transform.DetachChildren();
        //获取坐标
        leftx = pos_left.position.x;
        rightx = pos_right.position.x;
        //卸磨杀驴,节省资源
        Destroy(pos_left.gameObject);
        Destroy(pos_right.gameObject);
    }

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

    //移动
    void move()
    {
        //如果脸朝左
        if (faceLeft)
        {
            //就朝左移动,y轴不变
            rb.velocity = new Vector2(-speed, rb.velocity.y);

            //如果当前坐标小于左侧坐标
            if (transform.position.x < leftx)
            {
                //掉头 -1是往右看
                transform.localScale = new Vector3(-1, 1, 1);
                faceLeft = false;
            }
        }
        //如果脸朝右
        else
        {
            //则向右移动
            rb.velocity = new Vector2(speed, rb.velocity.y);

            //掉头,往左
            if (transform.position.x > rightx)
            {
                transform.localScale = new Vector3(1, 1, 1);
                faceLeft = true;
            }
        }
    }
}

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