1 using UnityEngine;
2 using System.Collections;
3
4 public class CameraFllow : MonoBehaviour {
5
6 private Transform player;
7 public float speed = 3;
8
9 void Start()
10 {
11 //向服务器实时更新数据的时候 将Player信息也更新
12 player = GameDataUtil.playerModel.transform;
13 }
14
15 void Update()
16 {
17 //由 摄像机 和 玩家固定距离偏量 构建插值
18 Vector3 targetPos = player.position + new Vector3(0.28f,20.56f,60f);
19 //移动
20 transform.position = Vector3.Lerp(transform.position , targetPos , speed * Time.deltaTime);
21 //角度的移动 lookRotation 是按向量变换时的长度 来变的 ,相减 是由相机位置指向玩家
22 Quaternion targetRotation = Quaternion.LookRotation(player.position - transform.position);
23 // Slerp是根据 变换过程中角度的变化 插值的
24 transform.rotation = Quaternion.Slerp(transform.rotation , targetRotation , speed * Time.deltaTime);
25 }
26 }
1 using UnityEngine;
2 using System.Collections;
3
4 public class FollowPlayer : MonoBehaviour {
5
6 private Transform player;
7 private Vector3 offsetPosition;//位置偏移
8 private bool isRotating = false;
9
10
11 public float distance = 0;
12 public float scrollSpeed = 10;
13 public float rotateSpeed = 2;
14
15 // Use this for initialization
16 void Start () {
17 player = GameObject.FindGameObjectWithTag(Tags.player).transform;
18 transform.LookAt(player.position);
19 offsetPosition = transform.position - player.position;
20 }
21
22 // Update is called once per frame
23 void Update () {
24 transform.position = offsetPosition + player.position;
25 //处理视野的旋转
26 RotateView();
27 //处理视野的拉近和拉远效果
28 ScrollView();
29 }
30
31 void ScrollView() {
32 //print(Input.GetAxis("Mouse ScrollWheel"));//向后 返回负值 (拉近视野) 向前滑动 返回正值(拉远视野)
33 distance = offsetPosition.magnitude;
34 distance += Input.GetAxis("Mouse ScrollWheel")*scrollSpeed;
35 distance = Mathf.Clamp(distance, 2, 18);
36 offsetPosition = offsetPosition.normalized * distance;
37 }
38
39 void RotateView() {
40 //Input.GetAxis("Mouse X");//得到鼠标在水平方向的滑动
41 //Input.GetAxis("Mouse Y");//得到鼠标在垂直方向的滑动
42 if (Input.GetMouseButtonDown(1)) {
43 isRotating = true;
44 }
45 if (Input.GetMouseButtonUp(1)) {
46 isRotating = false;
47 }
48
49 if (isRotating) {
50 transform.RotateAround(player.position,player.up, rotateSpeed * Input.GetAxis("Mouse X"));
51
52 Vector3 originalPos = transform.position;
53 Quaternion originalRotation = transform.rotation;
54
55 transform.RotateAround(player.position,transform.right, -rotateSpeed * Input.GetAxis("Mouse Y"));//影响的属性有两个 一个是position 一个是rotation
56 float x = transform.eulerAngles.x;
57 if (x < 10 || x > 80) {//当超出范围之后，我们将属性归位原来的，就是让旋转无效
58 transform.position = originalPos;
59 transform.rotation = originalRotation;
60 }
61
62 }
63
64 offsetPosition = transform.position - player.position;
65 }
66 }
