Unity production shooting game case 01 (control character + launch bullets + camera tracking)

 Organize logical ideas:

//[Business Logic] This script is used to 1. control the movement and rotation of objects (WASD), 2. launch bullets (space bar)

//[Program logic 2]

First, detect that the user has not pressed the space bar. 2. If pressed, execute the bullet firing function. 3. Clone the bullet. 4. Let the cloned bullet run forward.

Build the scene

Add a rigid body to the bullet template and limit the rotation

Script:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using UnityEngine.UI;
using System.IO;
public class RoleControl : MonoBehaviour
{
    //【业务逻辑】这个脚本用来控制物体移动旋转（WASD）、发射子弹（空格键）
    //【程序逻辑】1.首先检测用户是否按下空格键 2.如果按下就执行发射子弹的函数 
    // 3.发射子弹的函数：创建一个子弹 (克隆函数)4.然后让子弹往枪口前方Z轴移动 

    public GameObject Zidanmuban;//用来存储子弹模板物体
    public GameObject ZidanBorn;//用来存储子弹的出生地空物体
    public GameObject ZidanParent;//将来用于存储场景中克隆出来的子弹的父物体
    public float Forcedaxiao = 10f;
    //---------------------------------------------
    GameObject tempZidan;//用来存储克隆出来的临时子弹物体

    public float Movespeed = 10f;//主角移动速度控制
    public float Rotatepeed = 10f;//主角旋转速度控制

    void Start()
    {
        Zidanmuban = GameObject.Find("Zidanmuban"); //从场景中查找到并存储子弹模板物体
        ZidanBorn = GameObject.Find("ZidanBorn");//从场景中查找到并存储子弹出生地物体
        ZidanParent = GameObject.Find("ZidanParent");//从场景中查找到并存储子弹父亲物体
    }
    
    void Update()
    {
        ControlMove();//用来控制主角移动旋转
        if (Input.GetKeyDown(KeyCode.Space))
        {
            Debug.Log("用户按下空格键");
            FPSShot();
        }

        GameObject.Destroy(tempZidan, 2f);//两秒后销毁物体
    }

    void FPSShot()
    {
        Debug.Log("用户开始发射子弹");
        tempZidan = GameObject.Instantiate(Zidanmuban, ZidanBorn.transform.position, Quaternion.Euler(0, 0, 0), ZidanParent.transform);//克隆子弹
        tempZidan.GetComponent<Rigidbody>().AddForce(ZidanBorn.transform.forward*Forcedaxiao, ForceMode.Impulse);
        
        tempZidan.transform.Rotate(ZidanBorn.transform.TransformDirection(new Vector3(90,0,0)));


    }

    void ControlMove()//用来控制主角移动旋转
    {

        //获取WS\AD的数值返回-1 - 1用来移动主角物体方向
        float MoveX = Input.GetAxis("Horizontal");
        float MoveY = Input.GetAxis("Vertical");
        this.transform.Translate(new Vector3 (MoveX, 0,MoveY)*Movespeed*Time.deltaTime);
        //接下来获取鼠标平移返回-1 - 1用来旋转主角物体
        float RotateDir = Input.GetAxis("Mouse X");
        this.transform.Rotate(new Vector3(0,1,0)* Rotatepeed*RotateDir * Time.deltaTime);
    }

    
}

Camera tracking and scripting

This script needs to be hung on the camera. The target object mentioned in it is an empty object added to the protagonist in the scene and placed behind the protagonist. This variable needs to be given externally.

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

public class CameraFollow : MonoBehaviour
{
    // 用来控制摄像机平滑跟踪
    [SerializeField]
    public GameObject oneTarget;//摄像机跟踪目标点,外部赋值
    public float Followspeed = 1f;
    
    void Update()
    {
        if (oneTarget != null)
        {
            Vector3 FinllTargetPos = oneTarget.transform.TransformPoint(0, 5, -5);
            this.transform.position = Vector3.Lerp(this.transform.position, FinllTargetPos, Followspeed * Time.deltaTime);
            transform.LookAt(oneTarget.transform);
        }
    }
}