unity3d：保持V字型队形，按路径点移动

约定不等于承诺〃 2022-02-26 01:20 136阅读 0赞

思路：  
1.分为领导者，追随者，追随点。  
2.先创建领导者。根据剩下人数的多少，再在左右创建追随者和追随点，成v字排列。追随点是领导者的子物体  
3.领导者按照路径点移动  
4.追随者追的追随点移动，如果距离过远，要提高速度

创建队形脚本

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    
    public class SanJiao : MonoBehaviour {
    
        public GameObject m_tmp;
        public List<Transform> m_listPos;
        public Transform m_pointPar;
        public int m_tankCnt;
        public Dictionary<int, List<Vector3>> m_dicPos = new Dictionary<int, List<Vector3>>();
        public List<Transform> m_listTank;
    	// Use this for initialization
    	void Start () {
            m_dicPos[0] = new List<Vector3>();
            for (int i = 0; i < m_pointPar.childCount; i++)
            {
                m_listPos.Add(m_pointPar.GetChild(i));
    
               
            }
    
            for (int i = 0; i < m_listPos.Count; i++)
            {
                m_dicPos[0].Add(m_listPos[i].transform.position);
    
    
                GameObject objPos = Instantiate(m_tmp);
                objPos.transform.position = m_listPos[i].transform.position;
    
                if (i < m_listPos.Count - 1)
                {
    
                    Vector3 dir = m_listPos[i + 1].transform.position - m_listPos[i].transform.position;
                    objPos.transform.rotation = Quaternion.LookRotation(dir.normalized);
                }
    
                if (i == m_listPos.Count - 1)
                {
                    Vector3 dir = m_listPos[i].transform.position - m_listPos[i-1].transform.position;
                    objPos.transform.rotation = Quaternion.LookRotation(dir.normalized);
                }
    
                if (m_tankCnt > 1)
                {
                    Sector(objPos.transform, objPos.transform.position, 60, 5, m_tankCnt-1);
                }
            }
    
            CreateTank();
        }
    	
    	// Update is called once per frame
    	void Update () {
    		
    	}
    
        void CreateTank()
        {
            Transform par = null;
            Quaternion qua = Quaternion.identity;
            for (int i = 0; i < m_tankCnt; i++)
            {
                GameObject tank;
                //m_listTank.Add(tank.transform);
    
                if (i == 0)
                {
                    tank = Instantiate(m_tmp);
                    tank.transform.position = m_dicPos[i][0];
                    tank.transform.GetComponent<FollowPath>().SetLeader(m_dicPos[i]);
    
                    Vector3 dir = m_dicPos[i][1] - m_dicPos[i][0];
                    tank.transform.rotation = Quaternion.LookRotation(dir.normalized); // 一开始就要确定leader 的方向
                    qua = tank.transform.rotation;
                    par = tank.transform;
                }
                else {
                    GameObject follow = new GameObject();
                    follow.transform.position = m_dicPos[i][0];
                    follow.transform.SetParent(par, true);
    
                    tank = Instantiate(m_tmp);
                    tank.transform.position = m_dicPos[i][0];
                    tank.transform.GetComponent<FollowPath>().SetFollow(follow.transform);
                    tank.transform.rotation = qua;
                    //tank.transform.SetParent(par, false);
                }
            }
        }
    
    
        public void Sector(Transform t, Vector3 center, float angle, float radius,int cnt)
        {
            Vector3 forward = -t.forward;
    
            int sign = -1;
            for (int i = 0; i < cnt; i++)
            {
    
                if (i % 2 == 0)
                {
                    sign = -1; 
                }
                else
                {
                    sign = 1;
                }
    
                Vector3 pos = Quaternion.Euler(0f, sign * angle / 2, 0f) * forward * radius * (1 + i / 2) + center;
    
                //GameObject obj = Instantiate(m_tmp);
                //obj.transform.position = pos;
    
                if (m_dicPos.ContainsKey(i+1) == false)
                {
                    m_dicPos[1 + i] = new List<Vector3>();
                }
                m_dicPos[1 + i].Add(pos);
            }
    
           
    
        }
    
    
        void OnDrawGizmos()
        {
            Gizmos.color = Color.white;
    
            for (int i = 0; i < m_pointPar.transform.childCount; i++)
            {
                Vector3 position = m_pointPar.transform.GetChild(i).position;
                if (i > 0)
                {
                    Vector3 previous = m_pointPar.transform.GetChild(i-1).position;
                    Gizmos.DrawLine(previous, position);
                    Gizmos.DrawWireSphere(position, 0.3f);
                }
            }
    
        }
    
    }

追随脚本

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    
    public class FollowPath : MonoBehaviour {
    
        public int CurrentWayPointID = 0;
        public float Speed;//移动速度
        public float reachDistance = 0.01f;//里路径点的最大范围
    
        public List<Vector3> m_listPos = new List<Vector3>();
        public bool m_isCanFollow = false;
    
        public bool m_isLeader = false;
    
        public Transform m_followTrans;
        public Transform m_leaderTrans;
        void Start()
        {
    
        }
    
        public void SetLeader(List<Vector3> listPos)
        {
            m_isLeader = true;
            m_listPos = listPos;
            m_isCanFollow = true;
            CurrentWayPointID = 0;
    
        }
    
        public void SetFollow(Transform trans)
        {
            m_isLeader = false;
            m_followTrans = trans;
    
            m_isCanFollow = true;
            CurrentWayPointID = 0;
    
        }
    
        void Update()
        {
            if (!m_isCanFollow)
                return;
    
            if (m_isLeader == true)
            {
                if (CurrentWayPointID >= m_listPos.Count)
                {
                    return;
                }
                float distance = Vector3.Distance(m_listPos[CurrentWayPointID], transform.position);
                transform.position = Vector3.MoveTowards(transform.position, m_listPos[CurrentWayPointID], Time.deltaTime * Speed);
    
                Vector3 LookDirection = m_listPos[CurrentWayPointID] - transform.position;
                Quaternion targetlook = Quaternion.LookRotation(LookDirection);
    
                if (distance <= reachDistance)
                {
                    CurrentWayPointID++;
                    if (CurrentWayPointID < m_listPos.Count)
                    {
                        playerRotate(m_listPos[CurrentWayPointID], gameObject/*transform.Find("Tank").gameObject*/);
                    }
    
                }
            }
    
            else if (m_isLeader == false)
            {
                float distance = Vector3.Distance(m_followTrans.position, transform.position);
    
                if (distance > 3)
                {
                    transform.position = Vector3.MoveTowards(transform.position, m_followTrans.position, Time.deltaTime * Speed * 1.25f);
                }
                else {
                    transform.position = Vector3.MoveTowards(transform.position, m_followTrans.position, Time.deltaTime * Speed );
                }
    
                //Vector3 LookDirection = m_listPos[CurrentWayPointID] - transform.position;
                //Quaternion targetlook = Quaternion.LookRotation(LookDirection);
                //playerRotate(m_followTrans.position, gameObject/*transform.Find("Tank").gameObject*/);
                transform.LookAt(m_followTrans);
            }
        }
    
    
        void playerRotate(Vector3 target, GameObject rot)
        {
            //向量的叉乘
            if (Vector3.Cross(rot.transform.forward, target - this.transform.position).y > 0)
            {
                //计算角度
                rot.transform.Rotate(Vector3.up * Vector3.Angle(rot.transform.forward, target - this.transform.position));
            }
            else
            {
                rot.transform.Rotate(Vector3.down * Vector3.Angle(rot.transform.forward, target - this.transform.position));
            }
        }
    
    }

效果  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_16_color_FFFFFF_t_70 2]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_16_color_FFFFFF_t_70]: /images/20220226/d433ba0b0dda4c1683a35287ac82c054.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_16_color_FFFFFF_t_70 1]: /images/20220226/0101745adc1347739ce96d75e3be02b2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_16_color_FFFFFF_t_70 2]: /images/20220226/955d1fd7416b4fb5861cd92ce7d7f1d8.png