【Unity开发】飞机大战项目实现总结

零、最终效果

一、需求分析

二、技术路线确定

UI面板->UGUI实现
数据存储->xml实现
核心逻辑功能->空间坐标转换、碰撞检测、资源加载等

三、关键功能实现

1、将玩家限制在屏幕内活动

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

public class PlayerControl : MonoBehaviour
{
    public float speed = 10f;
    //移动前位置信息
    private Vector3 frontPos;
    //当前位置信息
    private Vector3 nowPos;
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        Move();
    }
    
    void Move()
    {
        frontPos = this.gameObject.transform.position;
        this.gameObject.transform.Translate(Vector3.forward * Input.GetAxis("Vertical") * speed * Time.deltaTime, Space.World);
        this.gameObject.transform.Translate(Vector3.right * Input.GetAxis("Horizontal") * speed * Time.deltaTime, Space.World);
        //将当前位置信息转为屏幕坐标位置信息
        nowPos = Camera.main.WorldToScreenPoint(this.transform.position);
        //左右超出判断
        if (nowPos.x<=0|| nowPos.x >=Screen.width)
        {
            this.transform.position = new Vector3(frontPos.x, this.transform.position.y, this.transform.position.z);
        }
        //上下超出判断
        if (nowPos.y <= 0 || nowPos.y >= Screen.height)
        {
            this.transform.position = new Vector3(this.transform.position.x, this.transform.position.y, frontPos.z);
        }

    }
}

2、子弹的不同运动方式

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

public class BulletControl : MonoBehaviour
{
    public GameObject player;
    private float speed = 10f;
    private float time;
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        //1、面朝向运动
        if (Input.GetKey(KeyCode.Keypad0))
        {
            this.gameObject.transform.Translate(Vector3.forward * speed * Time.deltaTime);
        }

        //2、曲线运动
        if (Input.GetKey(KeyCode.Keypad1))
        {
            //通过sin函数实现
            time += Time.deltaTime;
            this.gameObject.transform.Translate(Vector3.right * Mathf.Sin(time) * speed * Time.deltaTime);
            this.gameObject.transform.Translate(Vector3.forward * speed * Time.deltaTime);
        }

        //3、右抛物线运动
        if (Input.GetKey(KeyCode.Keypad2))
        {
            //改变旋转角度
            this.gameObject.transform.rotation *= Quaternion.AngleAxis(speed * 10 * Time.deltaTime, Vector3.up);
            this.gameObject.transform.Translate(Vector3.forward * speed * Time.deltaTime);

        }
        //4、左抛物线运动
        if (Input.GetKey(KeyCode.Keypad3))
        {
            this.gameObject.transform.rotation *= Quaternion.AngleAxis(-speed * 10 * Time.deltaTime, Vector3.up);
            this.gameObject.transform.Translate(Vector3.forward * speed * Time.deltaTime);

        }
        //5、跟踪目标运动
        if (Input.GetKey(KeyCode.Keypad4))
        {
            //不停计算与玩家之间的方向向量 然后得到四元数，自己的角度不断朝目标四元数进行变换
            this.gameObject.transform.rotation = Quaternion.Slerp(this.gameObject.transform.rotation, 
                                                    Quaternion.LookRotation(player.transform.position - this.gameObject.transform.position),
                                                    speed*Time.deltaTime);
            this.gameObject.transform.Translate(Vector3.forward * speed * Time.deltaTime);
        }
    }
}

3、鼠标射线检测销毁物体

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

public class MouseDestory : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetMouseButton(0))
        {
            RaycastHit hitInfo;
            if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out hitInfo, 1000))
            {
                print(hitInfo.transform.gameObject.layer);
                if (hitInfo.transform.gameObject.layer==3)
                {
                    Destroy(hitInfo.transform.gameObject);
                }    
            }
            
        }
        
        
    }
}

4、XML配置文件的读取与存储

XML配置文件的读取与存储学习