<em>Physics</em> <em>2</em><em>D</em> Manager
<em>2</em><em>D</em>物理学管理器
The <em>Physics</em> Manager lets you provide global settings for <em>2</em><em>D</em> physics (menu: Edit > Project Settings > <em>Physics</em> <em>2</em><em>D</em>). There is also a corresponding manager for 3<em>D</em> physics, de
3<em>D</em>物体检测：
if (Input.GetMouseButtonUp(0))
{
// 点击鼠标左键抬起时发射一条射线
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
if...
//3<em>D</em>射线 if (Input.GetMouseButton(0))
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);//从摄像机发出到点击坐标的射线
RaycastHit hitInfo;
if (<em>Physics</em>.Raycast(r
Collider<em>2</em><em>D</em>[] enemies = <em>Physics</em><em>2</em><em>D</em>.<em>OverlapCircle</em>All(transform.position, bombRadius, 1
// For each collider...
foreach(Collider<em>2</em><em>D</em> en in enemies)
{
// Check if it has a rigidbody (since there is on
这几天逛CS<em>D</em>N论坛，发现在一些前端模块发的问题大都是因为var、let和const搞不清楚导致的，今天我来浅析下，希望对看到这篇博客的童鞋有所帮助~
What we know is that…（英语作文万能开头） :在JavaScript中有三种声明变量的方式：var、let、const。
目录1.var<em>2</em>. let3. const
1.var
（1）var定义的变量在之后可以修改，如果不初始...
