小游戏＜别让箱子掉下来＞-优快云博客

本文链接：https://blog.youkuaiyun.com/xuxinyu100200/article/details/107707831

一些无关紧要的话:

最近心血来潮,想研究下LayaBox,因为我感觉H5是将来的趋势.而Unity对网页的支持始终不那么理想.

于是我变身小白从头开始,网上各种查资料,下载安装包,搭建环境,很顺利的就让LayaBox的案例小游戏运行起来了.

是的,就是我下面要讲的这个游戏<别让箱子掉下来>;研究了几天LayaBox,发现它很多地方其实和Unity有类似的地方,然后我突然发现

这个小游戏有点意思,决定用Unity实现一次,于是就有了这篇文章

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上面的都是废话,入正题,先看游戏效果=====>

大致分析下这个游戏==>主要功能可以分为3个模块

1.箱子下落; 2.发射子弹; 3.碰撞检测; 至于其他比如击中显示粒子,不必在意,我也是胡乱做的,没有美感

好,先上代码

//箱子代码

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

public class Box : MonoBehaviour
{
    private GamePlay gp;
    //粒子
    private ParticleSystem ps;

    // Start is called before the first frame update
    void Start()
    {
        gp = GameObject.Find("Canvas").GetComponent<GamePlay>();

        ps = transform.GetChild(0).GetComponent<ParticleSystem>();
        ps.gameObject.SetActive(false);
    }

    private void OnCollisionEnter2D(Collision2D collision)
    {
        //检测到是底部
        if (collision.gameObject.name == "DownCheck")
        {
            OnDownCheck();
        }
        //检测到是子弹
        else if (collision.gameObject.name == "bullet")
        {
            Destroy(collision.gameObject);
            OnHitBullet();
        }
    }

    void OnDownCheck()
    {
        Destroy(gameObject);
        gp.UpdateMiss();
    }

    void OnHitBullet()
    {
        Rigidbody2D r2d = transform.GetComponent<Rigidbody2D>();

        int r = Random.Range(0, 5);
        //给box一个向上的力
        if (r < 2)//五分之二的几率箱子向上弹
        {
            r2d.AddForce(Vector2.up * 500);
        }
        else//击碎箱子
        {
            r2d.gravityScale = 0;
            ps.transform.SetParent(transform.parent);
            ps.gameObject.SetActive(true);
            ps.Play();
            transform.GetComponent<Image>().color = new Color(1, 1, 1, 0);
            gp.UpdateScore();
            Destroy(gameObject, 1.25f);
        }
                   
        
    }
}

子弹代码

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

public class Bullet : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        //添加一个2d刚体
        Rigidbody2D rig = gameObject.AddComponent<Rigidbody2D>();
        //去掉重力
        rig.gravityScale = 0;
        //添加一个向上的力*系数
        rig.AddForce(Vector2.up * 500);

        
    }

    private void Update()
    {
        //子弹超出屏幕自动销毁
        if (transform.localPosition.y > Screen.height + 200)
        {
            Destroy(this.gameObject);
        }
    }




}

主逻辑

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

public class GamePlay : MonoBehaviour
{
    //文本显示
    public Text Txt_score, Txt_miss, Txt_begin;
    //预制体
    public Box box;
    public Bullet bullet;
    //节点由于存放生成的子弹和箱子
    public Transform bulletRoot, boxRoot;

    //箱子下落时差标志
    float _boxCreateFps = 0;
    //得分,错过记录
    int _scroe, _miss;


    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        //鼠标左键发射
        if (Input.GetMouseButtonDown(0))
        {
            Txt_begin.text = "";

            Vector3 pos = Input.mousePosition;
            pos = Camera.main.ScreenToWorldPoint(pos);
            CreateBullet(pos);
        }

        //每隔1.25秒生成一个箱子
        _boxCreateFps += Time.deltaTime;
        if (_boxCreateFps >= 1.25f)
        {
            _boxCreateFps = 0;
            //随机箱子的x坐标
            float rand_x = Random.Range((Screen.width / -2) + 250, (Screen.width / 2) - 250);
            Vector3 pos = new Vector3(rand_x, Screen.height + 110, 0);
            CreateBox(pos);
        }
    }

    //创建子弹
    void CreateBullet(Vector3 pos)
    {
        GameObject go = Instantiate(bullet.gameObject) as GameObject;
        go.transform.SetParent(bulletRoot);
        go.transform.position = pos;
        go.transform.localPosition = new Vector3(go.transform.localPosition.x, go.transform.localPosition.y, 0);
        go.transform.localScale = Vector3.one;
        go.name = "bullet";
    }

    //创建箱子
    void CreateBox(Vector3 pos)
    {
        GameObject go = Instantiate(box.gameObject) as GameObject;
        go.transform.SetParent(boxRoot);
        go.transform.localPosition = pos;
        go.transform.localPosition = new Vector3(go.transform.localPosition.x, go.transform.localPosition.y, 0);
        float r = Random.Range(1, 2.5f);
        go.transform.localScale = new Vector3(r, r, 1);
    }

    //更新得分
    public void UpdateScore()
    {
        _scroe += 1;
        Txt_score.text = "击中:" + _scroe;
    }

    //更新错过
    public void UpdateMiss()
    {
        _miss += 1;
        Txt_miss.text = "错过:" + _miss;
    }


}

//场景和资源