一：世界空间下绘制

挂载到任意游戏物体身上

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

/// <summary>
/// 画线控制器
/// </summary>
public class DrawLineController : MonoSingleton<DrawLineController>
{
    private bool m_EnableDraw = true;//是否开启绘制
    public bool EnableDraw
    {
        get { return m_EnableDraw; }
        set { m_EnableDraw = value; }
    }

    public bool openOptimize;//是否开启优化（顶点数增加会带来性能消耗）
    public int optimizeAddVertexCount;//优化后两个点之间添加的顶点数

    private bool m_IsMouseDown;//鼠标是否按下

    private Vector2 m_LastMousePos;//上一次的鼠标位置
    private List<LineRenderer> m_LineRendererList = new List<LineRenderer>();//存储所有的LineRenderer
    private LineRenderer m_CurLineRe