暑假学习记录

1.地图制作

通过在windows=>2D=>Tilemap中把想要的贴图放入这个框中，可以点击画笔等给世界地图中添加贴图。并且需要先创建游戏物体Tilemap。
再在地图中加入需要的游戏物体。

2. 敌人制作

制作敌人的动画，并制作相应的动画状态机操控。

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

public class Enemy : MonoBehaviour
{
    
    public float speed = 1f; //移动速度
    Animator animator;
    Rigidbody2D rigBody;
    public Vector2 movePlay; //移动向量
    public float moveTimer; //移动计时器
    public float moveTime = 1; // 移动时间
    bool IsMove = false;
    Vector3 originPos;
    Vector3 endPos;
    float timers = 0;
    int direction = 1;
    public int Bloodvalue;
    //一定要在FixedUpdate里
    IEnumerator TestIfTurn()
    {
    
        originPos = transform.position;
        yield return new WaitForSeconds(0.05f);
        endPos = transform.position;
        if (Vector3.Distance(originPos, endPos) <= 0.001f)
        {
    
            direction = direction * (-1);
        }
    }
    void Start()
    {
    
        rigBody = GetComponent<Rigidbody2D>();
        animator = GetComponent<Animator>();
        //使用切换方向向量的函数
        moveAuto();
    }

    // Update is called once per frame
    void Update()
    {
    
        moveTimer -= Time.deltaTime;
        //判断计时器完毕没有
        if (moveTimer >= 2)
        {
    
            Vector3 thisScale = this.transform.localScale;
            Vector2 position = rigBody.position;
            position += movePlay * speed * Time.deltaTime;
            rigBody.MovePosition(position); //调用刚体的位置赋值的方法

        }
        else if (moveTimer <= 2 && moveTimer >= 0)
        {
    
            animator.SetFloat("TransformX", 0);
            animator.SetFloat("TransformY", 0);
        }
        else if (moveTimer <= 0)
        {
    
            //完毕了就重新调用，重新获取方向
            moveAuto();
            //计时器重新赋值
            moveTimer = moveTime;
        }

    }


    void moveAuto()
    {
    
        //随机生成-1，0，1的数字，因为随机数的Next不取最大值，此处用（-1，2）
        //此处随机生成移动向量
        System.Random rd = new System.Random();
        float x = rd.Next(-1, 2);
        float y = rd.Next(-1, 2);
        movePlay = new Vector2(x, y);
        //切换方向
        Vector3 thisScale = this.transform.localScale;
        if (x != 0)
        {
    
            thisScale.x = Math.Abs(thisScale.x) * x;
            transform.localScale = thisScale;
        }
        animator.SetFloat("TransformX", x);
        animator.SetFloat("TransformY", y);
    }
    private void OnTriggerEnter(Collider other)
    {
    
        if (other.CompareTag("Bullet"))
        {
    
            Destroy(other.gameObject);
        }
    }
    void Blood(int value)
    {
    
        Bloodvalue -= value;
    }
}

3. 主角制作

与敌人制作类似，先制作好动画，在将动画加入到动画状态机中

代码如下

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

public class Player : MonoBehaviour
{
    
    public Animator anim;
    public float runSpeed;
    public bool run;
    private float stopX,stopY;
    private Rigidbody2D rigidbody;
    void Start()
    {
    
        rigidbody = GetComponent<Rigidbody2D>();
        anim = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update()
    {
    
        Run();
    }
    void Run()
    {
    
       
        float moveDir = Input.GetAxis("Horizontal");
        float moveDer = Input.GetAxis("Vertical");
        Vector2 platerVel = new Vector2(moveDir * runSpeed, moveDer * runSpeed);
        rigidbody.velocity = platerVel;
        if (platerVel != Vector2.zero)
        {
    
            anim.SetBool("Run", true);
            stopX = moveDir;
            stopY = moveDer;
        }
        else
        {
    
            anim.SetBool("Run", false);
        }
        anim.SetFloat("InputX", stopX);
        anim.SetFloat("InputY", stopY);
    }
}

枪的代码

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

public class Gun : MonoBehaviour
{
    
    public GameObject Prefab;
    public Transform Shoottransform;
    public GameObject Player;
    private float m_nextFire;

    /// <summary>
    /// 开火速率
    /// </summary>
    public float FireRate = 2.0f;

    /// <summary>
    /// 子弹对象
    /// </summary>
    public GameObject Bullet;

    /// <summary>
    /// 子弹速度
    /// </summary>
    public float BulletSpeed;
    void FixedUpdate()
    {
    
        Shoot();
        // 获取鼠标坐标并转换成世界坐标
        Vector3 m_mousePosition = Input.mousePosition;
        m_mousePosition = Camera.main.ScreenToWorldPoint(m_mousePosition);
        // 因为是2D，用不到z轴。使将z轴的值为0，这样鼠标的坐标就在(x,y)平面上了
        m_mousePosition.z = 0;

        // 武器朝向角度
        float m_weaponAngle = Vector2.Angle(m_mousePosition - this.transform.position, Vector2.right);
        if (transform.position.x < m_mousePosition.x)
        {
    
            m_weaponAngle = -m_weaponAngle;
        }

        //判断武器正反
        if ( transform.localScale.x > 0)
        {
    
            transform.localScale = new Vector3(-transform.localScale.x, transform.localScale.y, transform.localScale.z);
        }
        else if ( transform.localScale.x < 0)
        {
    
            transform.localScale = new Vector3(-transform.localScale.x, transform.localScale.y, transform.localScale.z);
        }

        // 变换最终角度
        transform.eulerAngles = new Vector3(0, 0, m_weaponAngle);
    }
    void Shoot()
    {
    
        m_nextFire = m_nextFire + Time.fixedDeltaTime;
 
        if(Input.GetMouseButton(0) && m_nextFire>FireRate)
        {
    
            // 获取鼠标坐标并转换成世界坐标
            Vector3 m_mousePosition = Input.mousePosition;
            m_mousePosition = Camera.main.ScreenToWorldPoint(m_mousePosition);
            // 因为是2D，用不到z轴。使将z轴的值为0，这样鼠标的坐标就在(x,y)平面上了
            m_mousePosition.z = 0;
 
            // 子弹角度
            float m_fireAngle = Vector2.Angle(m_mousePosition - this.transform.position, Vector2.up);
 
            if(m_mousePosition.x>this.transform.position.x)
            {
    
                m_fireAngle = -m_fireAngle;
            }
 
            // 计时器归零
            m_nextFire = 0;
 
            // 生成子弹
            GameObject m_bullet = Instantiate(Bullet, transform.position, Quaternion.identity) as GameObject;
 
            // 速度
            m_bullet.GetComponent<Rigidbody2D>().velocity = ((m_mousePosition-transform.position).normalized * BulletSpeed);
 
            // 角度
            m_bullet.transform.eulerAngles = new Vector3(0, 0, m_fireAngle);
 
        }
    }
}

摄像机跟随代码

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

public class MainCamera : MonoBehaviour
{
    
    public Transform target;
    public float smoothing;
    internal static readonly object main;

    //定义两个位置进行限制相机移动
    // Start is called before the first frame update
    void Start()
    {
    

    }
    void Update()
    {
    

    }
    void LateUpdate()
    {
    
        if (target != null)
        {
    
            Vector3 targetPos = target.position;
            transform.position = Vector3.Lerp(transform.position, targetPos, smoothing);
        }
    }
}