首先搭建好太阳系以及飞机的场景

需要用到3个脚本

1.控制飞机移动旋转

2.控制摄像机LookAt朝向飞机和差值平滑跟踪飞机

3.控制各个星球自转以及围绕太阳旋转（rotate()和RotateAround()）

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1.控制飞机移动旋转的脚本

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class MovePlan : MonoBehaviour
{// 这个脚本是用户用WASD键盘控制飞机移动public float MoveSpeed = 0.5f;public float RotateSpeed = 2f;float mOUSESPEED;void Update(){if (Input.GetKey(KeyCode.W)){this.transform.Translate(new Vector3(0, 0, 1 * MoveSpeed * Time.deltaTime));}if (Input.GetKey(KeyCode.S)){this.transform.Translate(new Vector3(0, 0, -1 * MoveSpeed * Time.deltaTime));}if (Input.GetKey(KeyCode.A)){this.transform.Translate(new Vector3(-1 * MoveSpeed * Time.deltaTime,0, 0 ));}if (Input.GetKey(KeyCode.D)){this.transform.Translate(new Vector3(1 * MoveSpeed * Time.deltaTime, 0, 0));}//控制物体旋转mOUSESPEED = Input.GetAxis("Mouse X");this.transform.Rotate(new Vector3(0, mOUSESPEED * RotateSpeed*Time.deltaTime, 0));}
}

 

 2.控制摄像机LookAt朝向飞机和差值平滑跟踪飞机 的脚本

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class ControlCamera : MonoBehaviour
{// 这个脚本是用来让摄像机跟踪目标，并且一直看向目标public Transform onetarget;//这是飞机的变换组件public GameObject OnePoint;public float Movespeed = 1f;void Update(){           this.transform.position = Vector3.Lerp(this.transform.position, OnePoint.transform.position, Movespeed * Time.deltaTime);this.transform.LookAt(onetarget);}}

使用方法：

分别挂在到摄像机和飞机上