Unity3D学习_摄像机跟随脚本(及进阶版)_2018Oct

当目标点移动后,摄像机稍晚一步跟随移动,并在目标点停止时出现"平缓制动"效果.

脚本实现: 

    public float Speed;           //跟随速度
    public Transform TargetPos;   //目标点信息

    private Vector3 _distance;    //距离
    void Start()
    {
        _distance = transform.position - TargetPos.position;
        Speed = 5;
    }

    void LateUpdate()
    {
        Vector3 newPos = TargetPos.position + _distance;      
        transform.position = Vector3.Lerp(transform.position, newPos, Speed * Time.deltaTime);
    }

 进阶版本:(实现了更多功能)

public class MouseFollow_ForRPG_CSharp : MonoBehaviour
{
    public GameObject target;
    public float ZoomSpeed = 30;//镜头缩放速率
    public float MovingSpeed = 1;//镜头移动速率
    public float RotateSpeed = 1;  //镜头旋转速率
    public float distance = 20;//设置距离角色的距离
    public float ViewAngle = 30;//设置镜头斜视的角度
    void Start()
    {
        if (target)
        {
            transform.rotation = Quaternion.Euler(ViewAngle, target.transform.rotation.eulerAngles.y, 0);
            transform.position = transform.rotation * new Vector3(0, 0, -distance) + target.transform.position;
        }
    }
    void Update()
    {
        Quaternion rotation;
        Vector3 position;
        float delta_x, delta_y;
        float delta_rotation_x, delta_rotation_y;
        if (target)
        {
            if (Input.GetMouseButton(0))
            {
                delta_x = Input.GetAxis("Mouse X") * MovingSpeed;
                delta_y = Input.GetAxis("Mouse Y") * MovingSpeed;
                rotation = Quaternion.Euler(0, transform.rotation.eulerAngles.y, 0);
                transform.position = rotation * new Vector3(-delta_x, 0, -delta_y) + transform.position;
                Debug.Log(-delta_x+"  "+-delta_y);
            }
            else
            {
                if (Input.GetAxis("Mouse ScrollWheel") != 0)
                {
                    distance += -Input.GetAxis("Mouse ScrollWheel") * ZoomSpeed;
                }
                if (Input.GetMouseButton(1))
                {
                    delta_rotation_x = Input.GetAxis("Mouse X") * RotateSpeed;
                    delta_rotation_y = -Input.GetAxis("Mouse Y") * RotateSpeed;
                    transform.Rotate(0, delta_rotation_x, 0, Space.World);
                    transform.Rotate(delta_rotation_y, 0, 0);
                }
                else
                {
                    transform.rotation = Quaternion.Slerp(transform.rotation,
                    Quaternion.Euler(transform.rotation.eulerAngles.x, target.transform.rotation.eulerAngles.y, 0
                    ), Time.deltaTime * 2);
                }
                transform.position = transform.rotation * new Vector3(0, 0, -distance) + target.transform.position;
            }
        }
    }
}

相关知识:(网页截图)