#include <irrlicht.h>
extern "C" {
  #include <lua.h>
  #include <lauxlib.h>
  #include <lualib.h>
}

// {{startx, starty},{endx,endy}}
lua_torecti(lua_State* L, int number, int* sx, int* sy, int* ex, int* ey){
	lua_pushnumber(L,1);// ...,{},...,1
	lua_gettable(L,number);// ...,{{sx,sy},{ex,ey}},...,{sx,sy}
	
	lua_pushnumber(L,1);// ...,{{sx,sy},{ex,ey}},...,{sx,sy},1
	lua_gettable(L,-2);// ...,{{sx,sy},{ex,ey}},...,{sx,sy},sx
	*sx = lua_tonumber(L,-1);// ...,{{sx,sy},{ex,ey}},...,{sx,sy},sx
	
	lua_pop(1);// ...,{{sx,sy},{ex,ey}},...,{sx,sy}
	
	lua_pushnumber(L,2);// ...,{{sx,sy},{ex,ey}},...,{sx,sy},2
	lua_gettable(L,-2);// ...,{{sx,sy},{ex,ey}},...,{sx,sy},sy
	*sy = lua_tonumber(L,-1);
	
	lua_pop(2);// ...,{{sx,sy},{ex,ey}},...
	
	
	lua_pushnumber(L,2);// ...,{{sx,sy},{ex,ey}},...,2
	lua_gettable(L,number);// ...,{{sx,sy},{ex,ey}},...,{ex,ey}
	lua_pushnumber(L,1);// ...,{{sx,sy},{ex,ey}},...,{ex,ey},1

	lua_gettable(L,-2);// ...,{{sx,sy},{ex,ey}},...,{ex,ey},ex
	*ex = lua_tonumber(L,-1);// ...,{{sx,sy},{ex,ey}},...,{ex,ey},ex
	lua_pop(L,1);// ...,{{sx,sy},{ex,ey}},...,{ex,ey}
	
	lua_pushnumber(L,2);// ...,{{sx,sy},{ex,ey}},...,{ex,ey},2
	lua_gettable(L,-2);// ...,{{sx,sy},{ex,ey}},...,{ex,ey},ey
	*ey = lua_tonumber(L,-1);// ...,{{sx,sy},{ex,ey}},...,{ex,ey},ey

	lua_pop(L,2);// ...,{{sx,sy},{ex,ey}},...
}

int addIGUIButton(lua_State* L){
	IGUIEnvironment env = lua_touserdata(L,1);
	IGUIElement parent = lua_touserdata(L,2);
	s32 id = lua_tonumber(L,3);
	s32 sx,sy,ex,ey;
	lua_torecti(L,4,&sx,&sy,&ex,&ey);
	core::rect<s32> rect = core::rect<s32>(sx,sy,ex,ey);
	IGUIElement* button = env->addButton(rect,parent,id,

}

void add_gui(lua_State* L){

}