using UnityEngine;
using System.Collections;

namespace YLBattle
{
    /// <summary>
    /// 
    /// </summary>
    public class FightingMapState
    {
        private FightingMap mOwner = null;

        /// <summary>
        /// 当前状态
        /// </summary>
        private MapBaseState mCurrentState = null;

        /// <summary>
        /// 上一个状态
        /// </summary>
        private MapBaseState mPreviousState = null;

        #region(行为状态)
        private MapBaseState mLoading = null;
        private MapBaseState mIdle = null;
        private MapBaseState mReady = null;
        private MapBaseState mArrival = null;
        private MapBaseState mRotate = null;
        private MapBaseState mMove = null;
        private MapBaseState mDrag = null;
        private MapBaseState mOver = null;
        private MapBaseState mBoss = null;
        private MapBaseState mBeHit = null;
        private MapBaseState mPVP = null;

        /// <summary>
        /// 打断当前状态
        /// </summary>
        public void BreakCurrentState()
        {
            this.ChangeState(EMapState.Idle, null);
        }

        /// <summary>
        /// 获取上一次状态
        /// </summary>
        /// <returns>状态对象</returns>
        public MapBaseState GetPreviousState()
        {
            return this.mPreviousState;
        }
        #endregion

        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="param">所有者</param>
        public void Initialize(FightingMap param)
        {
            this.mOwner = param;
            this.mLoading = new MapLoading(this.mOwner);
            this.mIdle = new MapIdle(this.mOwner);
            this.mReady = new MapReady(this.mOwner);
            this.mBoss = new MapBoss(this.mOwner);
            this.mArrival = new MapArrival(this.mOwner);
            this.mRotate = new MapRotate(this.mOwner);
            this.mMove = new MapMove(this.mOwner);
            this.mDrag = new MapDrag(this.mOwner);
            this.mOver = new MapOver(this.mOwner);
            this.mBeHit = new MapBeHit(this.mOwner);
            this.mPVP = new MapPVP(this.mOwner);
            this.SetCurrentState(this.mReady, null);
        }

        /// <summary>
        /// 设置当前状态
        /// </summary>
        /// <param name="current">状态</param>
        /// <param name="param">参数</param>
        public void SetCurrentState(MapBaseState current, object param)
        {
            this.mCurrentState = current;
            this.mCurrentState.OnEnter(param);
        }

        /// <summary>
        /// 获取当前行为状态
        /// </summary>
        /// <returns>状态对象</returns>
        public MapBaseState GetCurrentState()
        {
            return this.mCurrentState;
        }

        /// <summary>
        /// 状态周期调度
        /// </summary>
        /// <param name="now">当前逻辑时间</param>
        public void OnUpdateState()
        {
            if (null != this.mCurrentState)
            {
                this.mCurrentState.OnUpdate();
            }
        }

        /// <summary>
        /// 切换到指定状态
        /// </summary>
        /// <param name="newState">新的状态</param>
        /// <param name="param">状态初始化参数</param>
        public void ChangeState(EMapState newState, object param)
        {
            if (this.mOwner.PlatAnimatorName == "0LaYuan")
            {
                return;
            }

            MapBaseState st = null;
            switch (newState)
            {
                case EMapState.Loading:
                    st = this.mLoading;
                    break;

                case EMapState.Idle:
                    st = this.mIdle;
                    break;

                case EMapState.Arrival:
                    st = this.mArrival;
                    break;

                case EMapState.Rotate:
                    st = this.mRotate;
                    break;

                case EMapState.Move:
                    st = this.mMove;
                    break;

                case EMapState.Over:
                    st = this.mOver;
                    break;

                case EMapState.Drag:
                    st = this.mDrag;
                    break;

                case EMapState.Ready:
                    st = this.mReady;
                    break;

                case EMapState.Boss:
                    st = this.mBoss;
                    break;

                case EMapState.BeHit:
                    st = this.mBeHit;
                    break;

                default:
                    st = null;
                    break;
            }

            if (null == st)
            {
                return;
            }

            this.mCurrentState.OnLeave();
            this.mPreviousState = this.mCurrentState;
            this.mCurrentState = st;
            this.mCurrentState.OnEnter(param);
        }
    }
}