how 2 imgui in source engine

tutorial.md

1. https://github.com/Source-SDK-Resources/source-2013-imgui get this

2. get imgui source code
   the path must look like this:
   imgui/thirdparty/imgui
imgui/imgui
   2.1 include the vpc in client_base.vpc
   like this:
   $include "$SRCDIR\imgui\imgui\imgui_system.vpc"

3. comment out these lines in imconfig_source.h:

#include "mathlib/vector2d.h"
#include "mathlib/vector4d.h"
#define IM_VEC2_CLASS_EXTRA												\
	ImVec2( const Vector2D& f ) : x( f.x ), y( f.y ) {}		\
	operator Vector2D() const { return Vector2D( x, y ); }

#define IM_VEC4_CLASS_EXTRA																\
	ImVec4( const Vector4D& f ) : x( f.x ), y( f.y ), z( f.z ), w( f.w ) {}	\
	operator Vector4D() const { return Vector4D( x, y, z, w ); }
  
  ...
  #define IMGUI_DISABLE_OBSOLETE_KEYIO

4. use visual studio 2022 to compile, not the 2013 one
   4.1: mapbase: in vpc_scripts/newer_vs_toolsets.vpc set VS2022 to 1
   4.2: others: idk

5. imgui_toggle_menu in console

6. imgui_show_demo in console

if it wont work comment and ill try to remember how to fix it