Unity3d 根据布线，自动生成碰撞墙

在自己制作项目的时候，限制玩家可移动范围，需要手动去摆一个一个collider，感觉好麻烦，于是写了一个工具，画好路径后，就可以一键生成碰撞体了：  先看效果：  这是绘制路径： 

这是生成碰撞墙的效果： 

看着感觉还不错，比用手去摆方便，下面是代码：

using UnityEngine;
using System;

public class FenceWall : MonoBehaviour {

    ////// 尺寸 x:宽度 y高度
    ///public Vector2 Size = new Vector2(1, 10);

    ////// 补漏
    ///public float BareSize = 0.5f;

    ////// 路径
    ///public Transform PathParent;

    ////// 是否闭合路径
    ///public bool IsClose = false;

    ////// 是否绘制路径
    ///public bool IsGizmos = false;

    ////// 创建碰撞墙
    ///public void CreateFenceWall()
    {
        if (PathParent == null) return;
        //查找已生成碰撞墙
        Transform target = transform.Find("FenceWall");
        if (target != null)
        {
            DestroyImmediate(target.gameObject);
        }
        //生成新的碰撞墙
        GameObject parent = new GameObject("FenceWall");

        parent.transform.localPosition = Vector3.zero;
        parent.transform.localScale = Vector3.one;

        //遍历路径
        TraversePath(delegate(Transform trans1,Transform trans2) {
            CreateWall(trans1, trans2, delegate (GameObject go) {
                go.transform.parent = parent.transform;
            });
        });

        parent.transform.parent = transform;
    }

    ////// 生成碰撞墙
    ////////////private void CreateWall(Transform pos1, Transform pos2,ActiononCreate)
    {
        GameObject go = new GameObject(pos1.name+"->"+pos2.name);
        float dis = Vector3.Distance(pos1.position, pos2.position);
        BoxCollider bc =go.AddComponent();
        bc.size = new Vector3(dis+ BareSize, Size.y , Size.x);
        bc.center = new Vector3(0,Size.y/2,0);
        go.transform.parent = transform;
        go.layer = 1< 0 ? -1 : 1;
        go.transform.rotation = Quaternion.Euler(new Vector3(0,angle* dir, 0));
        if (onCreate != null)
            onCreate(go);
    }

    ////// 遍历路径
    //////void TraversePath(Action onTraverse)
    {
        int childCount = PathParent.childCount;
        if (childCount > 2)
        {
            for (int i = 0; i < childCount; i++)
            {
                Transform child1 = PathParent.GetChild(i);
                Transform child2 = null;
                if (i == childCount - 1)
                {
                    if (IsClose)
                        child2 = PathParent.GetChild(0);
                    else
                        break;
                }

                else
                    child2 = PathParent.GetChild(i + 1);
                if (onTraverse != null)
                    onTraverse(child1,child2);
            }
        }
    }
    ////// 绘制路径
    ///void OnDrawGizmos()
    {
        if (!IsGizmos) return;
        if (PathParent == null) return;
        TraversePath(delegate (Transform trans1, Transform trans2)
        {
            Gizmos.DrawLine(trans1.position, trans1.position);
        });
    }
}

编辑器类（就是加了一个按钮）：

using UnityEngine;
using UnityEditor;

[CustomEditor(typeof(FenceWall))]
public class FenceWallInspector : Editor {

    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();
        FenceWall fw = (FenceWall)target;
        if (GUILayout.Button("Create Wall"))
        {
            fw.CreateFenceWall();
        }
    }

}

面板属性： 

将此脚本挂载到GameObject上，设置路径，最后点击CreateWall按钮即可。

最后看看我的场景中的应用： 

省事还规整