Unity3D实现鼠标控制视角转动

using System.Collections;using System.Collections.Generic;using UnityEngine;public class MouseView : MonoBehaviour { public enum RotationAxes { MouseXAndY = 0, MouseX = 1, MouseY = 2 } public RotationAxes m_axes = RotationAxes.MouseXAndY; public float m_sensitivityX = 10f; public float m_sensitivityY = 10f; // 水平方向的 镜头转向 public float m_minimumX = -360f; public float m_maximumX = 360f; // 垂直方向的 镜头转向 (这里给个限度 最大仰角为45°) public float m_minimumY = -45f; public float m_maximumY = 45f; float m_rotationY = 0f; // Use this for initialization void Start () { // 防止 刚体影响 镜头旋转 if (GetComponent<Rigidbody>()) {  GetComponent<Rigidbody> ().freezeRotation = true; } } // Update is called once per frame void Update () { if (m_axes == RotationAxes.MouseXAndY) {  float m_rotationX = transform.localEulerAngles.y + Input.GetAxis ("Mouse X") * m_sensitivityX;  m_rotationY += Input.GetAxis ("Mouse Y") * m_sensitivityY;  m_rotationY = Mathf.Clamp (m_rotationY, m_minimumY, m_maximumY);  transform.localEulerAngles = new Vector3 (-m_rotationY, m_rotationX, 0); } else if (m_axes == RotationAxes.MouseX) {  transform.Rotate (0, Input.GetAxis ("Mouse X") * m_sensitivityX, 0); } else {  m_rotationY += Input.GetAxis ("Mouse Y") * m_sensitivityY;  m_rotationY = Mathf.Clamp (m_rotationY, m_minimumY, m_maximumY);  transform.localEulerAngles = new Vector3 (-m_rotationY, transform.localEulerAngles.y, 0); } }}