Re: Forward Declaration
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- Subject: Re: Forward Declaration
- From: "Leandro Candido" <enclle@...>
- Date: 2003年10月14日 21:59:25 -0300
----- Original Message -----
From: "Speight.Marcus" <marcus.speight@vivid-gaming.com>
To: "LUA (E-mail)" <lua@bazar2.conectiva.com.br>
Sent: Tuesday, October 14, 2003 7:51 AM
Subject: Forward Declaration
> Hi,
>
> I'm fairly new to LUA and hoped someone could answer a problem for me.
>
> I have a menu system that loads an lua script. But I need a menu to back
> reference.
Hello,
I made the following script based on the answer of others as an exercize
to me:
updateMenus is a function that resolves references of strings to tables.
you need create the menus as:
[atable].[menutable]
and then pass [atable] to updateMenus.
Each time you need a reference to a fowarded table you write as a string.
I imagine this can help you.
Thanx,
Leandro.
teste.lua:
function updateMenus(menustbl)
function updateMenu(tbl)
for k, v in tbl do
if type(v) == type("") then
tbl[k] = menustbl[v]
end
print("=====")
print("K: ",k,"V: ",v)
print("K: ",k,"tbl[k]: ",tbl[k])
end
end
for k, v in menustbl do
updateMenu(v)
_G[k]=v
end
end
ID_CAMPAIGN = 1
ID_RANDOMMAP = 2
ID_LOADGAME = 3
ID_EXIT = 4
__menus = {}
__menus.SubMenu1 =
{
["New Campaign"] = ID_CAMPAIGN,
["New Random Map"] = ID_RANDOMMAP,
["Back"] = "Menu" --< [NO MORE] Problem
};
__menus.Menu =
{
["New"] = "SubMenu1",
["Load Game"] = ID_LOADGAME,
["Exit"] = ID_EXIT
};
updateMenus(__menus)
print()
print("SubMenu1: ", SubMenu1 )
print("=========")
for k,v in SubMenu1 do
print("K: ",k," V: ",v)
end
print()
print("Menu: ", Menu )
print("=====")
for k,v in Menu do
print("K: ",k," V: ",v)
end