using System.Collections.Generic;
using Entitas;
using UnityEngine;

namespace CoreGame.Render
{
    // 只对LocalPlayer起效
    public class RandomMoveSys : IExecuteSystem
    {
        private readonly IGroup<CombatEntity> m_ConfuseMoveGroup;
        private readonly IGroup<CombatEntity> m_ScareMoveGroup;
        private readonly List<CombatEntity> m_CacheEntities = new();

        public RandomMoveSys(CombatContext contexts)
        {
            var confuseMoveMatcher = (Matcher<CombatEntity>)Matcher<CombatEntity>
                .AllOf(CombatComponentsLookup.ConfuseMove)
                .NoneOf(CombatComponentsLookup.Dead);
            m_ConfuseMoveGroup = contexts.GetGroup(confuseMoveMatcher);

            var scareMoveMatcher = (Matcher<CombatEntity>)Matcher<CombatEntity>.AllOf(CombatComponentsLookup.ScareMove)
                .NoneOf(CombatComponentsLookup.Dead,  CombatComponentsLookup.ForceNav);
            m_ScareMoveGroup = contexts.GetGroup(scareMoveMatcher);
        }

        public void Execute(float deltaTime)
        {
            m_ConfuseMoveGroup.GetEntities(m_CacheEntities);
            for (int i = 0; i < m_CacheEntities.Count; i++)
            {
                var entity = m_CacheEntities[i];
                var confuseMove = entity.confuseMove;
                confuseMove.cdAcc += deltaTime;
                if (confuseMove.cdAcc >= confuseMove.cd)
                {
                    confuseMove.cdAcc = 0f;
                    confuseMove.randomAngle = RandomSrv.Range(-0.75f * 180f, 0.75f * 180f);
                }
                if (entity.hasMovement)
                {
                    entity.movement.direction += confuseMove.randomAngle;
                }
            }

            m_ScareMoveGroup.GetEntities(m_CacheEntities);
            for (int i = 0; i < m_CacheEntities.Count; i++)
            {
                var entity = m_CacheEntities[i];
                var scareMove = entity.scareMove;
                scareMove.cdAcc += deltaTime;
                if (scareMove.cdAcc >= scareMove.cd)
                {
                    scareMove.cdAcc = 0f;
                    scareMove.randomAngle = RandomSrv.Range(0f, 360f);
                }
                entity.ReplaceMovement(BattleConst.JoySpeed, scareMove.randomAngle);
            }
        }
    }
}