c#语言使用Unity粒子系统制作手雷爆炸

目录

• 一、创建地形
• 二、应用资源包
• 三、制作手雷

一、创建地形

1、GameObject ->3D Object-> Terrain，创建带有地形属性的平面

2、Terrain-〉最后一个工具(Terrain Settings)->Set Resolution-〉SetHeightmap resolution ，把地形设置为500*500

3、调整视图

• Hierarchy->Camera，选择默认的摄像机
• Hierarchy->Camera->Inspector->Position->X=250,Y=100,Z=-250, Game中能看到一个梯形状的平面(以后随时调整XYZ值得到最佳效果)

4、设置地形高度

SetHeight

Height->200

5、设置地形背景

二、应用资源包

1、下载资源

从unity官网中下载好所需要的资源包

“Third Person Controller - Basic Locomotion FREE.unitypackage”

“Environment Pack Free Forest Sample.unitypackage”

2、导入资源

Assets->Import Package->Custom Package->依次选中Package包

3、Project ->All Prefabs->将显示人像的ThirdPersonController_LITE预制件拖拉到Scene窗口中的地面上（参数可以选用默认值），同时将与ThirdPersonController_LITE相隔3个的vThirdPersonCamera_LITE预制件拖拉到Scene窗口中(该预制件能跟踪人体的运动，替代默认的Camera）。

4、选中Hierarchy-〉Untitled->Main Camera，在Inspector下的Main Camera左边的小框中的勾选去掉，让Main Camera失效。

三、制作手雷

1、导入SceneShot.unitypackage

2、将Grenade置入场景中

3、Collisions.cs脚本程序(1) //拖拽到ThirdPersonController_LITE上

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Collisions : MonoBehaviour
{
    public static int GRENADE_AMMO = 0;
    // Start is called before the first frame update
    void Start()
    {
    }
    // Update is called once per frame
    void Update()
    { 
        RaycastHit hit;
        //check if we are collidering
        float rayCastLength = 5;
        Vector3 offset = new Vector3(0,0.5f,0);
        if (Physics.Raycast(transform.position+offset, transform.forward,out hit ,rayCastLength ))
        {
            //...with a door
            if (hit.collider.gameObject.tag == "Door")
            {
                //open the door
                hit.collider.gameObject.GetComponent<Animation>().Play("Door-open");    
            }
        }
        Debug.DrawRay(transform.position + offset, transform.forward, Color.red);
    }
    void OnTriggerEnter(Collider hit)
    {
        if (hit.gameObject.tag == "CrateGrenades")
        {
            Debug.Log("hit");
            //destory the ammo box
            Destroy(hit.gameObject);
            //add ammo to inventory
            GRENADE_AMMO += 200;
            print("YOU NOW HAVE " + GRENADE_AMMO + " GRENADES");
        }
    }
}

4、Shooting.cs脚本程序 //拖拽到ThirdPersonController_LITE上

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Shooting : MonoBehaviour
{
    // Start is called before the first frame update
    float  speed = 3;
    Vector3 offset = new Vector3(0, 1.0f, 0f);
    [Tooltip("gp")]
    public GameObject GrenadePrefab;
    void Start()
    {
    }
    // Update is called once per frame
    void Update()
    {
        Screen.lockCursor = true;
        //find out if a fire button is pressed
        if (Input.GetMouseButtonDown(0))
        {
            Debug.Log("shoot");
            if (Collisions.GRENADE_AMMO > 0)
            {
                //create the prefab
                    GameObject grenade = Instantiate(GrenadePrefab, this.transform.localPosition+ offset+ transform.forward, Quaternion.identity);
                //add force to the prefab
                grenade.GetComponent<Rigidbody>().AddForce(transform.forward * 20, ForceMode.Impulse);
                Collisions.GRENADE_AMMO--;
                print("YOU NOW HAVE " + Collisions.GRENADE_AMMO + " GRENADES");
            }
        }
    }
}

5、GrenadeScript.cs脚本程序 //将脚本拖拽到grenade预制体上

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class GrenadeScript:MonoBehaviour
{
    private float creationTime;
    public GameObject explosionPrefab;
    int lifetime = 3;
    // Start is called before the first frame update
    void Start()
    {
    }
    void Awake()
    {
        Debug.Log("count");
        creationTime = Time.time;
    }
    // Update is called once per frame
    void Update()
    {
        if (Time.time > (creationTime + lifetime))
        {
            //Destroy(this.gameObject);
            Instantiate(explosionPrefab, transform.position, Quaternion.identity);
        }
    }
}

6、在当前工程文件的Assets目录下，建一个Audio文件夹，将手榴弹爆炸音效文件Grenade.mp3，拷贝到Audio文件夹中

点击Project->Assets->Audio->Grenade音乐文件，在Inspector面板最下方有一个运行按钮（右下方的Grenade栏右边的箭头），可以倾听音效

Project-〉Prefabs-〉explosion- >在Inspector中点击Add Component ->Audio->Audio Source，在Inspector中的Audio Source下有AudioClip，

选Grenade音乐组件单击Hierarchy-〉vThirdPersonCamera_LITE，查看Inspector面板上的组件属性，Audio Listener起到在游戏运行时侦听场景中的音乐效果

运行，按键盘的左健，发射手榴弹，手榴弹落地后消失，在产生火焰爆炸特效的同时，可以侦听到手榴弹爆炸的声音特效

7、最终效果

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