00|学到的内容

01|素材引入

02|地图配置

03|脚本编写

Man.cs

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

public class Man : MonoBehaviour
{
    Vector2 man_direction;
    // 自定义只在本脚本临时生效的名字，需要在编辑器选择具体生效层
    public LayerMask Man_Layermask;

    void Update()
    {
        if (Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.UpArrow))
        {
            man_direction = Vector2.up;
        }
        if (Input.GetKeyDown(KeyCode.S) || Input.GetKeyDown(KeyCode.DownArrow))
        {
            man_direction = Vector2.down;
        }
        if (Input.GetKeyDown(KeyCode.A) || Input.GetKeyDown(KeyCode.LeftArrow))
        {
            man_direction = Vector2.left;
        }
        if (Input.GetKeyDown(KeyCode.D) || Input.GetKeyDown(KeyCode.RightArrow))
        {
            man_direction = Vector2.right;
        }
        if (man_direction != Vector2.zero && IsManMovable(man_direction))
        {
            MoveMan(man_direction);
        }
        man_direction = Vector2.zero;
    }
    public void MoveMan(Vector2 man_direction)
    {
        transform.Translate(man_direction);
    }
    // 如果碰到箱子，箱子能动人才能动
    public bool IsManMovable(Vector2 man_direction)
    {
        RaycastHit2D hit = Physics2D.Raycast(transform.position, man_direction, 1f, Man_Layermask);
        if (!hit)
        {
            return true;
        }
        else
        {
            // 需要确定到每一个实体
            if (hit.collider.gameObject.GetComponent<Box>() != null)
            {
                // 箱子动了人才能动，是哪个箱子动在MoveBox选择
                return hit.collider.GetComponent<Box>().MoveBox(man_direction);
            }
        }
        return false;
    }
}

Box.cs

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

public class Box : MonoBehaviour
{
    public LayerMask Box_Layermask;

    public bool MoveBox(Vector2 box_direction)
    {
        // 箱子是否撞墙，每个箱子都有这个脚本，transform就是相应箱子的
        RaycastHit2D hit = Physics2D.Raycast(transform.position, box_direction, 1f, Box_Layermask);
        if (!hit)
        {
            transform.Translate(box_direction);
            return true;
        }
        else 
        { 
            return false; 
        }
    }
    private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.CompareTag("target"))
        {
            this.GetComponent<SpriteRenderer>().color = Color.black;
            ////this.gameObject.SetActive(false);
        }
    }
}

04|出现的问题