Using Lua For a Battle System

Im looking at a few methods for battle systems in my rpg and was wondering if anybody had used LUA for this type of process ?. Any feedback welcomed thanks :)

Strict

Import axe.lua

Global Player:Char=Char.Create(["Bobby","100","10","5","2"])
Global Enemy:Char=Char.Create(["PurpleDragon","100","10","5","2"])

Type Char
	Global Stat$[]=["Name","HP","STR","DEF","Skill"]
	Field Stat_Val$[]	
	Function Create:Char(_Val$[])
		Local I:Char=New Char
			i.Stat_Val=_Val
		Return I
	End Function
	
	Function Player_Stat$(_Stat$)
		For Local i=0 To Stat$.length-1
			If Stat$[i]=_Stat$ Then
				Return Player.Stat_Val$[i]
			EndIf
		Next
	End Function

	Function Enemy_Stat$(_Stat$)
		For Local i=0 To Stat$.length-1
			If Stat$[i]=_Stat$ Then
				Return Enemy.Stat_Val$[i]
			EndIf
		Next
	End Function
End Type

I want to set up a Simple combat system

I want the LUA to
Do this Sum

a= Player Str+ (Rnd(10-Player Skill)+Player Skill)
b= Enemy Def+ Rnd(5)
c= b-a
if c>0 then Enemy Hp:-c
Print "hit Enemy for "+c+" Damage"
else
Print "You Missed him ninni"
endif


how would i go about that

Import axe.lua

'In C:
'lua_State* luaVM = lua_open(0);
Local luaVM:Byte Ptr = lua_open( )

'In C:
'lua_baselibopen(luaVM);
'lua_iolibopen(luaVM);
'lua_strlibopen(luaVM);
'lua_mathlibopen(luaVM);

luaopen_base(luaVM)
luaopen_table(luaVM)
luaopen_io(luaVM)
luaopen_string(luaVM)
luaopen_math(luaVM)

Print "Enter Lua commands below.  Enter a blank line to quit."
Local outfile:TStream
Local cmd:String
Repeat
	outfile = WriteFile("temp.lua")
	cmd = Input ("> ")
	WriteLine outfile, cmd
	CloseFile(outfile)
	lua_dofile(luaVM,"temp.lua".ToCString())
	FlushMem
Until cmd=""

DeleteFile("temp.lua")

'In C:
'lua_close(luaVM);
lua_close(luaVM)

What needs to be changed to get this to work with current axe.Lua

Wish I could help. Unfortunately it'll be a while before I need (and have the time) to get up to speed on Lua. :/