Exploration and analysis of automatic pathfinding and follow-up in Unity 3D

Here are the main three functions, an auto-follow function and two point rotation functions, these three functions are often used during the creation of a game character:

This is the follow function and the Euler angle rotation function.

public class Gensuizhixiang:monobehaviour {//Common Properties//define Transform Transform M_transform following the subject;    Defines the Transform public Transform target that is followed (pointed) to the object;    Follow the class//define the moving speed of the following body float m_speed = 10f;               Point to class//define the steering angle of the following body float m_rotspeed = 120f; Use the This for Initializationvoid Start () {//get itself transform M_transform = this.transform;}        Update is called once per framevoid Update () {//call following function follow ();    Call to function LookAt ();}        Follow function void Follow () {//define the original position following the principal (not yet followed by the move) Vector3 oldposition = m_transform.position;        Define the position of the object to be followed Vector3 targetposition = target.position;        Get the vector on the xyz axis float x = mathf.movetowards (oldposition.x, targetposition.x, M_speed * time.deltatime);        Float y = mathf.movetowards (OLDPOSITION.Y, TARGETPOSITION.Y, M_speed * time.deltatime);     float z = mathf.movetowards (oldposition.z, Targetposition.z, M_speed * time.deltatime);   The obtained vectors are assigned to follow the subject implementation following m_transform.position = new Vector3 (x, y, z);                    }//Point function void LookAt () {//define the original angle to the body (not yet rotated) Vector3 Oldoeuler = M_transform.eulerangles; Pointing to the body coordinates the steering is pointed to the object m_transform.        LookAt (Target.transform);  Obtain an object-oriented Euler angle (only XY can be achieved pointing to) float Eulerx = Mathf.movetowardsangle (oldoeuler.x, m_transform.eulerangles.x, M_rotspeed        * time.deltatime);        float eulery = Mathf.movetowardsangle (Oldoeuler.y, M_transform.eulerangles.y, M_rotspeed * time.deltatime);    The resulting rotational amount is assigned to the main realization point m_transform.eulerangles = new Vector3 (Eulerx, eulery, 0); }}

This is a four-dollar rotation function.

public class Quaternionlookat:monobehaviour {    //define Transform Transform M_transform that are directed to the subject    ;    Defines the Transform public Transform target;//of the object to be directed to    , Initializationvoid Start ()     {        // Initialize to the principal transform        m_transform = this.transform;} Update is called once per framevoid Update ()     {        //Call rotation function        Quaterlook ();}    Four dollar rotation function    void Quaterlook ()    {        //define a three-dimensional variable to represent the vector from the body to the object        Vector3 pos = target.position-m_ transform.position;        Four Yuan Lookrotation () to get the four yuan of the steering        quaternion m_rotation = quaternion.lookrotation (POS);        The resulting rotational amount is assigned to the rotating body to achieve a point rotation  (note here. Localrotation instead of. Rotation because the former can achieve rotation the latter cannot)        m_transform.localrotation = m_ rotation;    }    }

The Euler angular rotation function and the four-tuple rotation function both can achieve real-time point rotation but the four-dollar effect is better and finer

Exploration and analysis of automatic pathfinding and follow-up in Unity 3D