Unity3D如何實現(xiàn)飛機大戰(zhàn)游戲？

public float moveSpeed = 3f;//指的是在unity里的移動速度
  // Update is called once per frame
  void Update()
  {
    this.transform.Translate(Vector3.down * moveSpeed *Time.deltaTime);
    Vector3 vector3 = this.transform.position;
    //表示背景已經(jīng)出了游戲相機的邊框
    if (vector3.y <= -8.52f)
    {
      //將其移到上面的游戲背景區(qū),如果是-vector3.y會導(dǎo)致兩張圖片之間有空隙無法達到輪播的效果
      this.transform.position = new Vector3(vector3.x, vector3.y+8.52f*2, vector3.z);
    }

//判斷動畫是否繼續(xù)，因為如果暫停了游戲，就可以不進行動畫
public bool animation = true;
//每秒播放幾幀
public int frameCountPreSeconds = 10;
 //計時器
  public float timer = 0;                                    
  //播放幀的數(shù)組
  public Sprite[] sprites;
  private SpriteRenderer SpriteRenderer;
  // Start is called before the first frame update
  void Start()
  {
    SpriteRenderer = this.GetComponent<SpriteRenderer>();
  }

  // Update is called once per frame
  void Update()
  {
    if (animation) {
      timer += Time.deltaTime;
      //1f/frameCountPreSeconds 每一幀的時間間隔          
      int frameIndex =(int) (timer /(1f/ frameCountPreSeconds));
      //當(dāng)前應(yīng)當(dāng)播放的是哪一幀
      int frame = frameIndex % 2;
      //首先先獲取組件SpriteRenderer，再獲取組件里的sprite
      SpriteRenderer.sprite=sprites[frame];
    }
  }