unity3d 常用代码

1、新建一个球、一个摄像机，把球和摄像机放在一个位置。

2、把下面代码托付给球。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Move3 : MonoBehaviour
{
    public float sensitivityX = 5f;
    public float sensitivityY = 5f;

    public float sensitivetyKeyBoard = 0.1f;
    public float sensitivetyMouseWheel = 10f;

    private GameObject Playercamera;
    public Rigidbody rigidbody;
    public float speed = 5;

    void Start()
    {
       // undefined
       Playercamera = GameObject.Find("PlayerCamera");
    }

    void Update()
    {
      //  undefined
    　　//滚轮实现镜头缩进和拉远
　　if (Input.GetAxis("Mouse ScrollWheel") != 0)
        {
           // undefined

Playercamera.GetComponent().fieldOfView = Playercamera.GetComponent().fieldOfView - Input.GetAxis("Mouse ScrollWheel") * sensitivetyMouseWheel;
        }
        //鼠标右键实现视角转动，类似第一人称视角  
        if (Input.GetMouseButton(0))
        {
           // undefined
      
float rotationX = Input.GetAxis("Mouse X") * sensitivityX;
            transform.Rotate(0, rotationX, 0);

            float rotationY = Input.GetAxis("Mouse Y") * sensitivityY;
            Playercamera.transform.Rotate(-rotationY, 0, 0);
        }

    }
    void FixedUpdate()
    {
       // undefined
    　　//控制移动
　　float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");

        //朝一个方向移动 new Vector3(h, 0, v) * speed * Time.deltaTime是个向量
        transform.Translate(new Vector3(h, 0, v) * speed * Time.deltaTime);
        //移动到一个位置
        //rigidbody.MovePosition(transform.position + new Vector3(h, 0, v) * speed * Time.deltaTime);
    }
}