using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System;

namespace DisComputer
{
    /// <summary>
    /// 置顶箭头控制器
    /// </summary>
    public class TopProgressArrow : MonoBehaviour
    {

        //左起点 -570 右七点 570
        //间距 100
        //单位长度 135

        [SerializeField]
        private TopCenterItem left_top_item;

        [SerializeField]
        private TopCenterItem right_top_item;

        //条件指令调整箭头
        [SerializeField]
        private TopCenterItem jz_top_item;

        //无条件指令调整箭头
        [SerializeField]
        private TopCenterItem jmp_top_item;

        // Start is called before the first frame update
        void Start()
        {

        }


        public void RewindTopArrow()
        {
            left_top_item.Reset();
            right_top_item.Reset();
            if(jz_top_item!=null)
                jz_top_item.Reset();

            if(jmp_top_item!=null)
                jmp_top_item.Reset();

        }


        /// <summary>
        ///  启动箭头动画
        /// </summary>
        /// <param name="reg_index">寄存单元下标</param>
        /// <param name="end_index">指向终点单元下标</param>
        /// <param name="dir_id">箭头方向 -1向左 1向右</param>
        /// <param name="finish">完成事件</param>
        public void PlayTopCenter(int reg_index, int end_index,int dir_id, Action finish = null)
        {
            left_top_item.Reset();
            right_top_item.Reset();

            float start_x = -570 * dir_id;

            TopCenterItem centerItem = dir_id == 1 ? left_top_item : right_top_item;

            int start_index = dir_id == 1 ? reg_index : 11 - end_index;

            int offset = Mathf.Abs(end_index - reg_index) ;

            int distance = 35 + 100 * offset;

            start_x = start_x + (100 * dir_id) * start_index;

            if(reg_index == 0 && dir_id == 1)
            {
                start_x = -624;
                distance = distance + 55 ;
            }

            if(dir_id == -1)
            {
                distance = distance + 55;
            }

            if(dir_id == -1 && end_index == 10)
            {
                distance = distance - 55;
            }

            if(dir_id == -1 && end_index == 11)
            {
                start_x = 530;
                distance = distance - 100 + 5;
            }


            if(dir_id == 1 && end_index == 10)
            {
                distance = distance + 1;
            }

            if(dir_id ==1 && end_index == 11)
            {
                distance = distance - 35;
            }

            Debug.LogFormat("reg_index {0} end_index {1} dir_id {2} start_index {3} offset {4}  distance {5} start_x {6}"
                , reg_index, end_index, dir_id, start_index, offset, distance, start_x);

            centerItem.Play(start_x, distance, finish);

        }



        /// <summary>
        /// 播放指令跳转箭头
        /// </summary>
        /// <param name="finish"></param>
        public void PlayCmdJmpTopCenter(Action finish = null)
        {
            if(VonNeumann.data.command == CommandType.Jmp)
            {
                jmp_top_item.Play(568.3f, finish);
            }
            else if(VonNeumann .data.command == CommandType.Jz)
            {
                jz_top_item.Play(921.33f, finish);
            }
           
        }

    }
}