描述

实现摄像机根据鼠标移动跟随物体旋转，以摄像机前物体为中心，摄像机围绕物体旋转，并使摄像机时刻指向物体

实现效果

Unity 组件设置

Camera 组件设置

Body 组件设置

实现代码

CameraRotateMove.cs 摄像机跟随和旋转

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class CameraMoveRotate : MonoBehaviour
{public float LerpPar;public Transform FollowTrans;public Vector3 Offset;public Transform CameraTransform1;Vector3 ForwardDirec;// Start is called before the first frame updatevoid Start(){Offset = transform.position - FollowTrans.position;}// Update is called once per framevoid Update(){float dx = Input.GetAxis("Mouse X");Offset = Quaternion.AngleAxis(dx * 10, Vector3.up) * Offset;transform.position = Vector3.Lerp(transform.position, (FollowTrans.position + Offset), LerpPar * Time.deltaTime);transform.rotation = Quaternion.LookRotation(-1 * Offset);}
}

move_better.cs 物体根据按键移动

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class move_better : MonoBehaviour
{public float speed = 3.0f;private Rigidbody mRigidbody;public Transform FollowTrans;public Vector3 Offset;public Transform CameraTrans;float Offset_x, Offset_z;// Start is called before the first frame updatevoid Start(){mRigidbody = GetComponent();Offset = FollowTrans.position - CameraTrans.position;}// Update is called once per framevoid Update(){Offset = FollowTrans.position - CameraTrans.position;Vector3 direction_forward = new Vector3(0, 0, Offset_z);Vector3 direction_left = new Vector3(Offset_x, 0, 0);if (Input.GetKeyDown("w")){mRigidbody.velocity = CameraTrans.forward * speed;}if (Input.GetKeyDown("s")){mRigidbody.velocity = -1 * CameraTrans.forward * speed;}if (Input.GetKeyDown("a")){mRigidbody.velocity = -1 * CameraTrans.right * speed;}if (Input.GetKeyDown("d")){mRigidbody.velocity = CameraTrans.right * speed;}if (Input.GetKeyDown("space")){mRigidbody.velocity = 2 * Vector3.up * speed;}}
}