Unity——Animaor动画系统

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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;

public class Animatortest : MonoBehaviour
{
    class SkillDate {
        public bool cd;
        public float attackDis;
    }


    private Animator myAnimator;
    private float h, v;
    private NavMeshAgent myNavMesh;
    private GameObject target;
    private SkillDate mySkillData;

    // Start is called before the first frame update
    void Start()
    {
        myAnimator = this.gameObject.GetComponent<Animator>();
        myNavMesh = this.gameObject.GetComponent<NavMeshAgent>();
        mySkillData = new SkillDate();
        mySkillData.attackDis = 5;
        mySkillData.cd = false;
    }

    
    // Update is called once per frame
    void Update()
    {
        //v = Input.GetAxis("Vertical");
        //if (v != 0)
        //{            
        //    myAnimator.SetBool("Move", true);
        //    transform.Translate(Vector3.forward * v *0.02f);
        //}

        //如果target为空就去寻找要寻路的目标
        if (!target)
        {
            target = FindEnum();
            Debug.Log(target);
        }

        //如果获取到了目标，就要开始进行尝试攻击或者自动寻路
        if (target)
        {
            //定义一个是否在移动的标志
            bool moveToTarget = false;
            //这个函数返回的是moveToTarget
            TryAttack(out moveToTarget);
            
            if (moveToTarget)
            {
                //移动到目标位置
                myNavMesh.SetDestination(target.transform.position);
                //播放移动动画
                MoveAnimator();
            }
        }
    }

    /// <summary>
    /// 播放移动动画
    /// </summary>
    void MoveAnimator()
    {
        myAnimator.SetBool("Move", true);
    }

    /// <summary>
    /// 检测周围有没有需要攻击的物体
    /// </summary>
    /// <returns></returns>
    GameObject FindEnum()
    {
        //返回半径100圆心是本物体，且图层为NPC的物体
        Collider[] colliders = Physics.OverlapSphere(transform.position, 100, 1<<LayerMask.NameToLayer("NPC"));
        if(colliders.Length > 0)
        {
            return colliders[0].gameObject;
        }
        return null;
    }

    /// <summary>
    /// 尝试进行攻击
    /// </summary>
    /// <param name="moveToTarget"></param>
    void TryAttack(out bool moveToTarget)
    {
        moveToTarget = false;
        if (!mySkillData.cd)
        {
            if (Vector3.Distance(transform.position, target.transform.position) > mySkillData.attackDis)
            {
                //不在攻击范围内，需要移动至攻击目标
                moveToTarget = true;
                return;
            }
            else
            {
                PrepareAttack();
            }

            //进行攻击
            AnimatorStateInfo info = myAnimator.GetCurrentAnimatorStateInfo(0);
            if (info.IsName("Base Layer.idle"))
            {
                myAnimator.SetInteger("SkillId", 1012);
            }

        }
    }

    /// <summary>
    /// 准备攻击
    /// </summary>
    void PrepareAttack()
    {
        //1.面朝向攻击目标
        Vector3 pos = new Vector3(target.transform.position.x, transform.position.y, target.transform.position.z);
        Vector3 dir = pos - transform.position;
        transform.rotation = Quaternion.LookRotation(dir);

        //2.让自身停止移动
        myNavMesh.SetDestination(transform.position);
        //停止播放移动动画
        myAnimator.SetBool("Move", false);
    }

}