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

/// <summary>
/// 连线两端点
/// </summary>
public class Line_end : PermanentTriggerBase
{
    public Line_group line_Group;
    /// <summary>
    /// 所属线
    /// </summary>
    private Line_item currentLine_Item;
    public void Init(Line_group line_group)
    {
        this.line_Group = line_group;
        if(!line_group.line_Ends.Contains(this))
            line_group.line_Ends.Add(this);
    }

    public void MyOnMDown()
    {
        if(line_Group.currentLine_Item == null)
        {
            BeginDraw();
        }
        else
        {
            //当前正在连线
            if (currentLine_Item == null)
            {
                //无所属线，结束当前连线
                if (line_Group.currentLine_Item.line_Ends[1] == null)
                {
                    if (GameManager.ProcessMgr == null || GameManager.ProcessMgr?.IsRightSubProcessStepsTriggerID(triggerName, true) == 0)
                    {
                        currentLine_Item = line_Group.currentLine_Item;
                        currentLine_Item.AddPoint(this);
                    }
                }
                else
                {
                    //画新线
                    BeginDraw();
                }
            }
            else
            {
                //已画线，不响应
            }
        }
    }

    /// <summary>
    /// 画新的线
    /// </summary>
    private void BeginDraw()
    {
        //当前无连线，则连新的线
        Material mat = line_Group.GetCurrentLineMaterial();
        if (mat != null)
        {
            if (GameManager.ProcessMgr == null || GameManager.ProcessMgr?.IsRightSubProcessStepsTriggerID(triggerName, true) == 0)
            {
                GameObject obj = Instantiate<GameObject>(Resources.Load<GameObject>("Prefabs/Objects/Line/线"));
                currentLine_Item = obj.GetComponent<Line_item>();
                currentLine_Item.Init(mat, line_Group, this);
                //取消线的选中
                line_Group.ChoseLine(null);
                line_Group.currentLine_Item = currentLine_Item;
            }
        }
    }

    protected override void OnDestroy()
    {
        base.OnDestroy();
    }
}