unity中C#跟随和射线

usingUnityEngine;

usingSystem.Collections;

publicclassgensui:MonoBehaviour{

   publicTransforma;//a是主物体被跟随物体

   publicTransformb;//b是跟随主物体的物体

   // public Animator ani;

   publicNavMeshAgentagint;//是跟随主物体的物体,获取组件

   publicLineRendererlr;//射线渲染

   // Use this for initialization

   voidStart () {

       

       //射线长度

        lr.SetVertexCount(2);

       //跟随移动

       /*

        1.选中plane--选择属性列表里的Static

        2.选中plane--Windows--Navigation--右下角Back烘焙一下

        3.建白Cube，建黑Cube

        */

    }

   // Update is called once per frame

   voidUpdate () {

       //跟随

        agint.SetDestination(a.position);

       //射线的两种方法

       ////1.1.屏幕发出，是摄像机射出的绿色线

       ////实例化射线

       //Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

       ////检测射线碰撞

       //RaycastHit hit;

       //if (Physics.Raycast(ray,out hit))

       //{

       //    Debug.Log(hit.point);

       //}

       //Debug.DrawLine(ray.origin,hit.point,Color.green);

       ////2.指定射线，是被跟随物体射出来的线

       //Ray ray2 = new Ray(a.position,b.position-a.position);

       //RaycastHit hit2;

       //if (Physics.Raycast(ray2,out hit2))

       //{

       //    Debug.Log(hit2.point);

       //    Debug.Log(hit2.collider.gameObject.name);

       //}

       ////画射线

       //Debug.DrawLine(ray2.origin, ray2.direction*20, Color.red);

       //Move();

        look();

        Fire();

    }

   voidlook() {

       Rayray =Camera.main.ScreenPointToRay(Input.mousePosition);

 //射线命中检测

       RaycastHithit;

//物理方法检测射线

       if(Physics.Raycast(ray,outhit))

        {

           //射线朝向跟随鼠标

            a.LookAt(newVector3(hit.point.x,0.1f,hit.point.z));

        }

    }

   voidFire() {

       Rayray2 =newRay(a.position, a.forward);

 //射线命中检测

       RaycastHithit2;

       if(Input.GetMouseButtonDown(0))

        {

           //再次点击出射线

            lr.enabled =true;

//传射线坐标  起始点位置靠上

            lr.SetPosition(0，newVector3(A.position.x,1,A.position.z));

                //             终点朝向，玩家位置

            lr.SetPosition(1,a.position+a.forward*15);

 //开启时间间隔协程

            StartCoroutine("startTime");

           if(Physics.Raycast(ray2,outhit2))

            {

                Destroy(hit2.collider.gameObject);

            }

        }

    }

   IEnumeratorstartTime() {

       yieldreturnnewWaitForSeconds(0.1f);

        lr.enabled =false;

    }

}

做记录用，不喜勿喷！！！谢谢