又又一天的unity学习总结

野性酷女 2022-07-20 16:23 154阅读 0赞

~~~又看了一下午加晚上的教程，还是siki老师的坦克大战  
做了下总结

**1、通过刚体来施加力来使物体移动**  
先定义个初速度，用的GetAxis（）；这个的参数是轴，检测对应的轴，会返回值-1~1；默认是wasd和方向键都可以控制，再让刚体的`velocity = transform.forward*返回值*速度;` transform.forward就是坐标前。前后的轴是Vertical 左右旋转的轴是 Horizontal 同样的。如果是两个相同的但是控制不同的，可以在轴那里复制个轴然后分别改名字。在edit中Project Setting 中Input ~。用GetAxis（）来获取那个轴，返回值。根据坐标名称，返回虚拟坐标系中的值。  
**2、实现子弹**  
就是对子弹先进行设置，然后把子弹作为预制体，再创建一个空物体，在空物体上实例子弹就可以了。

GameObject.Instantiate(shellprefab,firePosition.position,firePosition.rotation)

并给一个初速度

go.GetComponent<Rigidbody>().velocity =go.transform.forward*shellSpeed;

**3、Update与FixedUpdate的区别**  
FixedUpdate是会在每个固定的时间间隔被调用，FixeduPdate不受帧率的变化。Update是一帧一帧来的。

**4、Transform.Find()**  
参数是一个对象的名字，这个可以通过写想要的对象的名字来获取，会返回对应的对象。

firePosition = transform.Find ("FirePosition");

**5、触发器发消息**  
collider.sendMessage();  
可以在触发检测到了后给触发的对象发消息，也就是调用那个消息也就是函数的名字。

collider.SendMessage("TankDamage");

void TankDamage(){
            if (hp <= 0)
                return;
                hp -= Random.Range(10,20);
            if(hp<=0){
                AudioSource.PlayClipAtPoint(siwang,transform.position);
                GameObject.Instantiate (TankSile, transform.position + Vector3.up, transform.rotation);
                Destroy (this.gameObject);
            }

**6、摄像头的视野跟随**

对于两个物体的，可以以他们距离的中心来跟随。  
先计算出现在设定好的摄像头与他们两个物体之间中心的距离，然后在此基础上，摄像头也就是去改变坐标。设置摄像头的视野大小。先找出比例，可以是两个物体之间的距离与现在摄像头视野大小做比例，然后让摄像头的视野大小一直是这个比例就可以了。

public Transform play1;
        public Transform play2;
        private Vector3 cha;
        private Camera camera;
        // Use this for initialization
        void Start () {
             cha = transform.position-(play1.position+play2.position)/2;
            camera = this.GetComponent<Camera> ();
        }
    
        // Update is called once per frame
        void Update () {
            if (play1 == null || play2 == null)
                return;
            transform.position =  cha+(play1.position+play2.position)/2;
            float distance = Vector3.Distance (play1.position,play2.position);
            float size = distance * 1.09f;
            camera.orthographicSize = size;
        }

分享下各个脚本的代码

**Tankovement**

public class Tankovement : MonoBehaviour {
        public float angularSpeed = 1;
        public float speed =2.0f;
        public Rigidbody rigidbody;
        public int number =1;
    
        public AudioSource audio;
        // Use this for initialization
        void Start () {
            rigidbody = this.GetComponent<Rigidbody> ();
            audio = this.GetComponent<AudioSource>();
        }
    
        void FixedUpdate()
        {
    
            float v = Input.GetAxis ("VerticalPlayer"+number);
            rigidbody.velocity = transform.forward * v * speed;
            float h = Input.GetAxis ("HorizontalPlayer"+number);
            rigidbody.angularVelocity = transform.up * h * angularSpeed;
    
        }
    }

**shiyegensui**

public class shiyegensui : MonoBehaviour {
    
        public Transform play1;
        public Transform play2;
        private Vector3 cha;
        private Camera camera;
        // Use this for initialization
        void Start () {
             cha = transform.position-(play1.position+play2.position)/2;
            camera = this.GetComponent<Camera> ();
        }
    
        // Update is called once per frame
        void Update () {
            if (play1 == null || play2 == null)
                return;
            transform.position =  cha+(play1.position+play2.position)/2;
            float distance = Vector3.Distance (play1.position,play2.position);
            float size = distance * 1.09f;
            camera.orthographicSize = size;
        }
    }

**TankAttack**

public class TankAttack : MonoBehaviour {
    
        private Transform firePosition;
        public GameObject shellprefab;
        public KeyCode fireKey = KeyCode.Space;
        public float shellSpeed=15;
        public  AudioClip fashe;
        // Use this for initialization
        void Start () {
    
            firePosition = transform.Find ("FirePosition");
        }
    
        // Update is called once per frame
        void Update () {
           if (Input.GetKeyDown (fireKey)) {
                AudioSource.PlayClipAtPoint(fashe,transform.position);
            GameObject go=  GameObject.Instantiate(shellprefab,firePosition.position,firePosition.rotation)as GameObject ;
                go.GetComponent<Rigidbody>().velocity =go.transform.forward*shellSpeed;
            }
    
    
        }
    }

**TankHealth**

public class TankHealth : MonoBehaviour {
    
        public float hp =100;
        public GameObject TankSile;
        public AudioClip  siwang;
    
    
        // Use this for initialization
        void Start () {
    
        }
    
        // Update is called once per frame
        void Update () {
    
        }
    
        void TankDamage(){
            if (hp <= 0)
                return;
                hp -= Random.Range(10,20);
            if(hp<=0){
                AudioSource.PlayClipAtPoint(siwang,transform.position);
                GameObject.Instantiate (TankSile, transform.position + Vector3.up, transform.rotation);
                Destroy (this.gameObject);
            }
    
        }
    }

**Shell**

public class Shell : MonoBehaviour {
        public GameObject shellexprafab;
        private AudioSource audio;
        public AudioClip baozha;
    
        void Start(){
    
    
        }
    
    
        public void OnTriggerEnter(Collider collider){
            AudioSource.PlayClipAtPoint (baozha,transform.position);
            GameObject.Instantiate (shellexprafab,this.transform.position,this.transform.rotation);
            GameObject.Destroy (this.gameObject);
            if(collider.tag=="Tank"){
    
                collider.SendMessage("TankDamage");
            }
        }
    }

还好C\#不是很难，而且我这几天接触的都还是比较简单的。这几天unity就先学习到这，我也发现了unity真的很好用，但是api好多…….很多还是现用现百度谷歌把。这几天收获很大。  
今天是乌云白帽大会啊，看会直播~~