rg1/client/Battle/BehaviorTree/Action/ChaseAction.cs

using System.Collections.Generic;
using BehaviorDesigner.Runtime.Tasks;
using UnityEngine;

namespace CoreGame.Render
{
    public class ChaseAction : Action
    {
        [SerializeField] private float distance;
        [SerializeField] private float waitTime;

        [BehaviorDesigner.Runtime.Tasks.Tooltip("如果为true，追逐范围则为手中的武器攻击范围减去distance")] [SerializeField]
        private bool useWeaponRangeDistance;

        private float m_StartTime;
        private List<CombatEntity> m_TargetList;
        private CombatEntity m_OwnerEnt;
        private int m_TargetId;

        private Vector2 m_TargetPos;

        public override void OnStart()
        {
            m_StartTime = Time.time;
            m_OwnerEnt = Owner.GetEntity<CombatEntity>();
            var ac = m_OwnerEnt.aI;
            var maxSqrDis = float.MaxValue;
            m_TargetId = 0;
            for (var index = 0; index < ac.targetList.Count; index++)
            {
                var target1 = Contexts.Combat.GetEntity(ac.targetList[index]);
                if (target1.IsValid() == false)
                {
                    continue;
                }
                var sqrDis = (m_OwnerEnt.transformProxy.position - target1.transformProxy.position).sqrMagnitude;
                if (sqrDis < maxSqrDis)
                {
                    maxSqrDis = sqrDis;
                    m_TargetId = target1.creationIndex;
                }
            }

            // var target = Contexts.Combat.GetEntity(m_TargetId);
            // var tc = target.transformProxy;
            // float monsterSpeed = m_OwnerEnt.property.MoveSpeed;
            //
            // float playerSpeed = tc.renderSpeed; //���ڵ��õ���ʱ��ұ������������Ҫ�ij�ʵʱ��;

            //if (playerSpeed * 1.05f < monsterSpeed) //速度足够大才会追击 防止速度相近时预测距离过大
            //{
            //    Vector2 monsterPosition = m_OwnerEnt.transformProxy.position;
            //    Vector2 playerPosition = target.transformProxy.position;

            //    Vector2 playerMoveDirection = target.transformProxy.direction;
            //    Vector2 monster2Player = (playerPosition - monsterPosition).normalized;

            //    float alphaAngle = Vector2.Angle(playerMoveDirection, monster2Player);
            //    float cosAlpha = Mathf.Cos(alphaAngle * Mathf.Deg2Rad);

            //    float sinBeta = Mathf.Min(Mathf.Sin(alphaAngle * Mathf.Deg2Rad) * playerSpeed / monsterSpeed, 1f);//��ֹ�����ٶ�С�������ٶ�ʱ���쳣ֵ����
            //    float cosBeta = Mathf.Sqrt(1 - sinBeta * sinBeta); //������

            //    float temp = monsterSpeed * cosBeta - playerSpeed * cosAlpha;
            //    float cutDis = Mathf.Sqrt((target.transformProxy.position - m_OwnerEnt.transformProxy.position).sqrMagnitude);
            //    float predictTime = cutDis / temp;

            //    if (predictTime < 100) //每秒缩短的距离小于1%当前距离时直接追放弃预判
            //    {
            //        Vector2 posPredict = playerMoveDirection * playerSpeed * predictTime;

            //        if (cutDis <= 3f)
            //        {
            //            posPredict = new Vector2(0, 0);
            //        }

            //        Vector2 posRandomOffset = monster2Player * (-1) * 0.5f;
            //        Vector2 posRandom = Random.insideUnitCircle * 0.2f;
            //        m_TargetPos = posPredict + posRandomOffset + posRandom + target.transformProxy.position;
            //    }
            //    else
            //    {
            //        m_TargetPos = target.transformProxy.position;
            //    }

            //    //Debug.Log(Contexts.Combat.input.dir);


            //}
            //else {
            //    m_TargetPos = target.transformProxy.position;
            //}

            //m_TargetPos = target.transformProxy.position;
        }

        public override TaskStatus OnUpdate()
        {
            var target = Contexts.Combat.GetEntity(m_TargetId);

            if (target == null || target.IsValid == false)
                return TaskStatus.Failure;

            //var speed = m_OwnerEnt.property.MoveSpeed;
            //m_OwnerEnt.ReplaceNav(target.transformProxy.position, speed);

            //Debug.Log((target.transformProxy.position - m_OwnerEnt.transformProxy.position).sqrMagnitude);
            //Debug.Log(Mathf.Sqrt(this.distance));

            //if ((target.transformProxy.position - m_OwnerEnt.transformProxy.position).sqrMagnitude <
            //    Mathf.Sqrt(this.distance) || m_StartTime + waitTime < Time.time)
            //{
            //    m_OwnerEnt.RemoveNav();
            //    return TaskStatus.Success;
            //}
            //return TaskStatus.Running;


            m_TargetPos = target.transformProxy.position;
            //if ((target.transformProxy.position - m_OwnerEnt.transformProxy.position).sqrMagnitude < (4.0f))
            //{
            //    m_TargetPos = target.transformProxy.position;
            //}

            var tempDis = distance;
            if (useWeaponRangeDistance && m_OwnerEnt.hasEquips)
            {
                var equipData = m_OwnerEnt.equips.GetHoldSlotData();
                var tbGun = WeaponDescMgr.Instance.GetConfig(equipData.gunCfgId);
                if (tbGun != null)
                {
                    var orDefault = TalentDescMgr.Instance.GetConfig(tbGun.FireSkill);
                    if (orDefault != null)
                    {
                        var skillDesc = SkillDescMgr.Instance.GetConfig(orDefault.skillId[0]);
                        if (skillDesc != null)
                        {
                            var tbGaCastCondition =
                                GACastConditionDescMgr.Instance.GetConfig(skillDesc.GACastConditionID);
                            // tempDis = tbGaCastCondition.skillConditionDistance * BattleConst.TenThousandReverse -
                            //           distance;
                        }
                    }
                }
            }

            if ((m_TargetPos - m_OwnerEnt.transformProxy.position).sqrMagnitude < tempDis * tempDis)
            {
                m_OwnerEnt.navAgentProxy.StopNav();
                return TaskStatus.Success;
            }

            //if (m_StartTime + waitTime < Time.time)
            //{
            //    m_OwnerEnt.navAgentProxy.StopNav();
            //    return TaskStatus.Failure;
            //}

            var speed = m_OwnerEnt.property.MoveSpeed;
            m_OwnerEnt.navAgentProxy.SetDestination(m_TargetPos, speed);
            return TaskStatus.Running;
        }
    }
}