using system.collections;
using system.collections.generic;
using unityengine;

public class rotateself : monobehaviour {
  //每秒旋转90度
  public float speed = 90;

  // update is called once per frame
  void update () {
   //绕z轴顺针旋转
    transform.rotate(new vector3(0, 0, -speed * time.deltatime));
  }
}

using system.collections;
using system.collections.generic;
using unityengine;

public class pinhead : monobehaviour {

  private void ontriggerenter2d(collider2d collision)
  {
    if (collision.tag == "pinhead")
    {
      gameobject.find("gamemanager").getcomponent<gamemanager>().gameover();
    }
  }
}

using system.collections;
using system.collections.generic;
using unityengine;

public class pin : monobehaviour {

  public float speed = 5;
  private bool isfly = false;
  private bool isreach = false;
  private transform startpoint;
  private vector3 targetcirclepos;
  private transform circle;

  // use this for initialization
  void start () {
    startpoint = gameobject.find("startpoint").transform;
    circle = gameobject.findgameobjectwithtag("circle").transform;
    targetcirclepos = circle.position;
    targetcirclepos.y -= 1.55f;
  }

  // update is called once per frame
  void update () {
    if (isfly == false)
    {
      if (isreach == false)
      {
        transform.position = vector3.movetowards(transform.position, startpoint.position, speed * time.deltatime);
        if (vector3.distance(transform.position, startpoint.position) < 0.05f)
        {
          isreach = true;
        }
      }
    }
    else
    {
      transform.position = vector3.movetowards(transform.position, targetcirclepos, speed * time.deltatime);
      if(vector3.distance( transform.position,targetcirclepos) < 0.05f)
      {
        transform.position = targetcirclepos;
        transform.parent = circle;
        isfly = false;
      }
    }
  }

  public void startfly()
  {
    isfly = true;
    isreach = true;
  }
}

using system.collections;
using system.collections.generic;
using unityengine;
using unityengine.ui;
using unityengine.scenemanagement;

public class gamemanager : monobehaviour {

  private transform startpoint;
  private transform spawnpoint;
  private pin currentpin;
  private bool isgameover = false;
  private int score = 0;
  private camera maincamera;
  public text scoretext;
  public gameobject pinprefab;
  public float speed = 3;

  // use this for initialization
  void start () {
    startpoint = gameobject.find("startpoint").transform;
    spawnpoint = gameobject.find("spawnpoint").transform;
    maincamera = camera.main;
    spawnpin();
  }

  private void update()
  {
    if (isgameover) return;
    if (input.getmousebuttondown(0))
    {
      score++;
      scoretext.text = score.tostring();
      currentpin.startfly();
      spawnpin();
    }
  }

  void spawnpin()
  {
     //针的实例化
    currentpin = gameobject.instantiate(pinprefab, spawnpoint.position, pinprefab.transform.rotation).getcomponent<pin>();
  }

  public void gameover()
  {
    if (isgameover) return;
    gameobject.find("circle").getcomponent<rotateself>().enabled = false;
    startcoroutine(gameoveranimation());
    isgameover = true;
  }

  ienumerator gameoveranimation()
  {
    while (true)
    {
      maincamera.backgroundcolor = color.lerp(maincamera.backgroundcolor, color.red, speed * time.deltatime);
      maincamera.orthographicsize = mathf.lerp(maincamera.orthographicsize, 4, speed * time.deltatime);
      if( mathf.abs( maincamera.orthographicsize-4 )<0.01f)
      {
        break;
      }
      yield return 0;
    }
    yield return new waitforseconds(0.2f);
    //重新加载场景
    scenemanager.loadscene(scenemanager.getactivescene().buildindex);
  }
}