unity3d：路径点移动，使用dotween（模拟蝴蝶飞舞）

素颜马尾好姑娘i 2022-04-23 14:26 428阅读 0赞

设置路径点

using UnityEngine;
    using System.Collections;
    using System.Collections.Generic;
    
    public class WaypointsManager : MonoBehaviour {
    
        Transform[] waypoints;
    
    	// Use this for initialization
    	void Start () {
            waypoints = new Transform[transform.childCount];
            int index = 0;
            foreach (Transform t in transform)
            {
                waypoints[index] = t;
                index++;
            }
        }
    
        public Transform getNextWayPt()
        {
            if (waypoints != null && waypoints.Length > 0)
            {
                int index = Random.Range(0, waypoints.Length);
                Debug.Log("index:" + index);
                if(index == waypoints.Length)
                {
                    index--;
                }
                return waypoints[index];
            }
            else
            {
                return null;
            }
        }
        
    }

![在这里插入图片描述][20190315180618140.png]

目标上挂脚本

using UnityEngine;
    using System.Collections;
    using DG.Tweening;
    
    public class ButterFlyController : MonoBehaviour {
    
        public Transform selfObj;
        public Transform target;
        Rigidbody rigid;
        ButterFlyAnimationController bfAnimController;
        float turningFactor = 0.6f;
        //float movingSpeed = 1f;
        float landingDist = 1f;
    
        float step = 0.3f;
        float movingDuration = 0.1f;
        float turningDuration = 0.1f;
    
        public SphereCollider myCollider;
        public WaypointsManager wayPtsManager;
        float staticRadius = 1.3f;
        float flyingRadius = 2.2f;
        int castLayerMask;
        int handLayerIndex;
        Sequence currentSeq;
        Vector3 avoidDir = Vector3.zero;
        int landingSpotsLayer;
        const int subseqCycle = 3;
        int randSubseqCount = subseqCycle;
        bool isTakingOff = false;
    
        public bool testFly;
    
        // Use this for initialization
        void Start () {
            myCollider.radius = staticRadius;
            bfAnimController = GetComponent<ButterFlyAnimationController>();
            rigid = GetComponent<Rigidbody>();
            landingSpotsLayer = LayerMask.NameToLayer("landingSpots");
            handLayerIndex = LayerMask.NameToLayer("Hands");
            castLayerMask = ~(1 << landingSpotsLayer);
            bfAnimController.idle();
    
            if (testFly)
                Invoke("chooseTargetAndTakeOff", 3);
    
        }
    
        // Update is called once per frame
        void Update() {
            //random Idle behaviour
            if(!bfAnimController.isFlying() && !bfAnimController.isPrepareToIdle())
            {
                if (Random.Range(0, 10000) > 9900)
                {
                    if (randSubseqCount == 0) {
                        randSubseqCount = subseqCycle;
                        bfAnimController.idle();
                    }
    
                    randSubseqCount--;
                }
            }
    
            if(bfAnimController.isFlying())
                myCollider.radius = flyingRadius;
            else
                myCollider.radius = staticRadius;
    
            //if (!bfAnimController.isFlying())
            //{
            //    chooseTargetAndTakeOff();
            //}
    
        }
    
        public void takeOff() {
            bfAnimController.stopIdling();
            bfAnimController.takeOff();
            Invoke("flyToTarget", 1.7f);
            isTakingOff = false;
        }
    
    
        public void flyToTarget() {
            Vector3 targetDir = (target.position - selfObj.position);
            if (targetDir.magnitude < landingDist)
            {
                if(target.gameObject.layer == landingSpotsLayer)
                {
                    Debug.Log("Landing!!");
                    landing();
                    return;
                }
            }
            
            targetDir = targetDir.normalized;
            currentSeq = DOTween.Sequence();
            float avoidTendency = 0.65f;
            Vector3 nextDir = Vector3.Slerp(selfObj.forward,  (1- avoidTendency) * targetDir + avoidTendency * avoidDir, turningFactor).normalized;
            float forwardDampingFactor = Mathf.Max(Vector3.Dot(nextDir, selfObj.forward), 0);
            Vector3 nextPos = selfObj.position + nextDir * forwardDampingFactor * step;
            currentSeq.Append(selfObj.DOMove(nextPos, movingDuration))
                      .Join(selfObj.DOLookAt(nextPos, turningDuration))
                      .AppendCallback(flyToTarget);
        }
    
        float landingDuration = 0.2f;
    
        public void landing() {
            Sequence mySequence = DOTween.Sequence();
            Vector3 nextDir = selfObj.forward - Vector3.Dot(selfObj.forward, target.up) * target.up; 
            mySequence.Append(selfObj.DOMove(target.position + target.up * 0f, landingDuration))
                     .Join(selfObj.DOLookAt(selfObj.position + nextDir, landingDuration))
                     .AppendCallback(landed);
            Invoke("playLandingAnimation", 0.7f);
        }
    
        public void playLandingAnimation()
        {
            bfAnimController.land();
        }
    
        public void landed()
        {
            Invoke("chooseTargetAndTakeOff", Random.Range(7f, 30f));
        }
    
        void OnCollisionEnter(Collision collision)
        {
            //Debug.Log("Collision!" + collision.gameObject.name);
            if (!bfAnimController.isFlying())
            {
                if (collision.gameObject.layer == handLayerIndex)
                {
                    chooseTargetAndTakeOff();
                }
            }
            else
            {
                if (currentSeq != null && currentSeq.IsPlaying())
                {
                    avoidDir = (selfObj.position - collision.contacts[0].point).normalized;
                    currentSeq.Kill();
                    currentSeq = null;
                    flyToTarget();
                }
            }
    
    
        }
    
        void OnCollisionExit(Collision collision)
        {
            avoidDir = Vector3.zero;
        }
    
    
        void chooseTargetAndTakeOff()
        {
            if (!bfAnimController.isFlying() && !isTakingOff)
            {
                isTakingOff = true;
                target = wayPtsManager.getNextWayPt();
                while(Vector3.Distance(target.position,selfObj.position) < landingDist)
                {
                    target = wayPtsManager.getNextWayPt();
                }
                takeOff();
            }
        }
    
    }

动画控制

using UnityEngine;
    using System.Collections;
    
    public class ButterFlyAnimationController : MonoBehaviour {
    
        Animator animator;
        string flyingStateName = "Flying";
        string takeOffTriggerName = "TakeOff";
        string idleTriggerName = "toIdle";
    
        // Use this for initialization
        void Awake()
        {
            animator = GetComponent<Animator>();
        }
    
        public void takeOff()
        {
            animator.SetBool(flyingStateName, true);
            animator.SetTrigger(takeOffTriggerName);
        }
    
        public void land()
        {
            animator.SetBool(flyingStateName, false);
        }
    
        public void idle()
        {
            animator.SetTrigger(idleTriggerName);
        }
    
        public void stopIdling()
        {
            animator.SetBool(idleTriggerName, false);
        }
    
        public bool isPrepareToIdle()
        {
            return animator.GetBool(idleTriggerName);
        }
    
        public bool isFlying()
        {
            return animator.GetBool(flyingStateName);
        }
    
    
    
    }

[20190315180618140.png]: /images/20220308/c99ef1c313f34cf7a23c0d9732e5b2dd.png