[Unity3d]第一人称和第三人称视角完美切换

void Update()  { 	 if (Input.GetKey(KeyCode.H)) 	// Lock the cursor inside gameview 	 Screen.lockCursor = true; 	// Hide mouse cursor 	Screen.showCursor = false; 	 	if(Input.GetKey(KeyCode.U)) 	 // Lock the cursor inside gameview 	Screen.lockCursor = false; 	//Show mouse cursor 	Screen.showCursor = true; }

using UnityEngine; using System.Collections;  public class ViewpointSwitch : MonoBehaviour {     //从场景中拖入的object     public GameObject Obj_3rd;     public GameObject cam_3rd;     public GameObject gobj_3rd;      public GameObject Obj_1fs;     public GameObject cam_1fs;     public GameObject gobj_1fs;      //记录刚进入第一人称视角时候的欧拉角和离开第一视角时候的欧拉角(Y方向)     float pre1fsAngle = 0;     float cur1fsAngle = 0;  	// Update is called once per frame 	void Update ()     {         //切换至第一人称视角         if (Input.GetKey(KeyCode.F1))         {             //记录一开始             //pre1fsAngle = cam_1fs.transform.eulerAngles.y;             pre1fsAngle = cam_3rd.transform.eulerAngles.y;  //记录的第一人称(这里取的是第三人称,其实是一样的)一开始的y方向欧拉角，这里没用上面注释掉的写法是防止重复按f1键切换然后覆盖初始值导致旋转角度差值缩小             if (!Obj_1fs.activeSelf)             {                 Obj_1fs.SetActive(true);                 GameObject.Find("Main Character Controller").transform.localPosition = GameObject.Find("3rd Person Controller").transform.localPosition;                 GameObject.Find("Main Character Controller").transform.localRotation = GameObject.Find("3rd Person Controller").transform.localRotation;                 Obj_3rd.SetActive(false);             }         }         //切换至第三人称视角         if (Input.GetKey(KeyCode.F2))         {             cur1fsAngle = cam_1fs.transform.eulerAngles.y;  //记录             if (!Obj_3rd.activeSelf)             {                 Obj_3rd.SetActive(true);                 GameObject.Find("3rd Person Controller").transform.localPosition = GameObject.Find("Main Character Controller").transform.localPosition;                 //注意这里Mathf里面的方法是幅度，我这里就进行了一个角度转幅度的计算:幅度=角度*pi/180                 float angle = (cur1fsAngle - pre1fsAngle) * Mathf.PI / 180;                 gobj_3rd.GetComponent<ThirdPersonController>().v = Mathf.Cos(angle);                 gobj_3rd.GetComponent<ThirdPersonController>().h = Mathf.Sin(angle);                 print("旋转角度:" + (cur1fsAngle-pre1fsAngle));                 gobj_3rd.GetComponent<ThirdPersonController>().flag = true;  //这个flag标志是让ThirdPersonController的update方法执行改变上面的v,h一次，然后第二帧的时候就执行v=Input.GetAxisRaw("Vertical")和h=Input.GetAxisRaw("Horizontal")                 Obj_1fs.SetActive(false);             }         } 	} }