using UnityEngine;
using UnityEngine.AI;

namespace GameLogic.Combat.Hero.State
{
    public class CombatHeroMoveState : CombatHeroStateBasic
    {
        protected Vector3 lasetTaregtPoint;

        protected Vector3 lastMovePoint;
        public CombatHeroMoveState(CombatHeroEntity combatHeroEntity) : base(combatHeroEntity)
        {
        }

        protected override void ProEnter()
        {
            lasetTaregtPoint = Vector3.zero;
            combatHeroEntity.combatHeroAnimtion.Play("run");
            combatHeroEntity.CombatAIBasic.NavMeshAgent.updateRotation = false;
            combatHeroEntity.CombatAIBasic.NavMeshAgent.isStopped = true;
            // SetNewPath();
        }

        protected override void ProExit()
        {
            combatHeroEntity.CombatAIBasic.NavMeshAgent.isStopped = true;
            combatHeroEntity.CombatAIBasic.NavMeshAgent.velocity = Vector3.zero;

            // combatHeroEntity.CombatAIBasic.NavMeshAgent.acceleration = 0;
        }

        protected void SetNewPath(Vector3 taregtPos)
        {
            lastMovePoint = combatHeroEntity.dotPos;
            lasetTaregtPoint = taregtPos;
            combatHeroEntity.CombatAIBasic.NavMeshAgent.isStopped = false;
            // combatHeroEntity.CombatAIBasic.NavMeshAgent.acceleration = 8;
            combatHeroEntity.CombatAIBasic.NavMeshAgent.SetDestination(taregtPos);
        }

        protected override void ProUpdate(float t)
        {
            if (combatHeroEntity.CombatAIBasic.currFocusTarget == null)
            {
                combatHeroEntity.CombatAIBasic.ChangeState(CombatHeroStateType.idle);
                return;
            }

            Vector3 targetPos = combatHeroEntity.CombatAIBasic.currFocusTarget.dotPos;
            Vector3 myPos = combatHeroEntity.dotPos;
            if (Vector3.SqrMagnitude(targetPos - myPos) >
                combatHeroEntity.CurrCombatHeroInfo.maxDisTo)
            {
                if (Vector3.SqrMagnitude(lasetTaregtPoint - targetPos) > 1)
                {
                    SetNewPath(targetPos);
                }
            }
            else
            {
                combatHeroEntity.CombatAIBasic.ChangeState(CombatHeroStateType.idle);
                return;
            }

            if (!combatHeroEntity.CombatAIBasic.NavMeshAgent.isStopped)
            {
                
                Vector3 nextPos = combatHeroEntity.CombatAIBasic.NavMeshAgent.nextPosition;
                Vector3 p = nextPos - lastMovePoint;
                lastMovePoint= myPos;
                if (p.sqrMagnitude > 0.00001)
                {
                    combatHeroEntity.combatHeroGameObject.rotation= Quaternion.Lerp(combatHeroEntity.combatHeroGameObject.rotation, Quaternion.LookRotation(p.normalized), 0.5f);
                }
            }
        }
    }
}