[Lua]Menu API. Includes submenus. Need help.

-- Jazzas Menu API V 0.0_1

--functionList--
--menu.setMenu(subMenuName,subMenuParent,numOfOptions,option1,function1)
--menu.setPointer(point)
--menu.menu(name)

function setPointer(point)
pointer = point
end

function printCentered(str, ypos)
term.setCursorPos(w/2 - #str/2, ypos)
print(str)
end

function clear()
term.clear()
term.setCursorPos(1,1)
end

function Menu(name)
while true do
w,y = term.getSize()
menuSelected = 1
clear()
term.setCursorPos(15,9)
write(pointer)

startline = 9 - menuSelected + 8 -#tArgs/2-1
printCentered(menuOptions[1],startline)
for c = 1,#tArgs-1, 2 do
printCentered(MenuID[name .. c],startline])
startline = startline+1
end

a,keys = os.pullEvent("key")

if  keys == 200 and menuSelected > 1 then
menuSelected = menuSelected - 1
elseif keys == 208 and menuSelected < 8 then
menuSelected = menuSelected + 1
elseif keys == 28 and menuSelected == 1 then
MenuID[name .. 4]()
elseif keys == 208 and menuSelected == 2 then
MenuID[name .. 6]()
elseif keys == 208 and menuSelected == 3 then
MenuID[name .. 8]()
elseif keys == 208 and menuSelected == 4 then
MenuID[name .. 10]()
elseif keys == 208 and menuSelected == 5 then
MenuID[name .. 12]()
elseif keys == 208 and menuSelected == 6 then
MenuID[name .. 14]()
elseif keys == 208 and menuSelected == 7 then
MenuID[name .. 16]()
elseif keys == 208 and menuSelected == 8 then
MenuID[name .. 2]()
end
end
end

function setMenu(...)
tArgs = {...}
name = tArgs[1]
MenuID[name .. 1] = {tArgs[2]} --parent
MenuID[name .. 2] = {tArgs[3]} --num
MenuID[name .. 3] = {tArgs[4]}
MenuID[name .. 4] = {tArgs[5]}
MenuID[name .. 5] = {tArgs[6]}
MenuID[name .. 6] = {tArgs[7]}
MenuID[name .. 7] = {tArgs[8]}
MenuID[name .. 8] = {tArgs[9]}
MenuID[name .. 9] = {tArgs[10]}
MenuID[name .. 10] = {tArgs[11]}
MenuID[name .. 11] = {tArgs[12]}
MenuID[name .. 12] = {tArgs[13]}
MenuID[name .. 13] = {tArgs[14]}
MenuID[name .. 14] = {tArgs[15]}
MenuID[name .. 15] = {tArgs[16]}
MenuID[name .. 16] = {tArgs[17]}
table.insert(MenuID,"Back")
end

menu.setMenu(main,"",6,"Hello","hello","Startup","startup","Goodbye","goodbye")
menu.setPointer("=>")
menu.menu(main)

function hello()
end

function startup()
end

function goodbye()
end

Jazza, on 12 July 2012 - 06:40 AM said:

Alright, I've got, well most of the API done. But Uh, I'm not even sure if the code is legit.
If someone could tell me what doesn't work, and or fix it, I'd be happy to give you credit.

API:

SNIP

Thanks, Jazza

MenuID[name .. 1] = {tArgs[2]}

MenuID[name .. "1"] = {tArgs[2]}

1lann, on 12 July 2012 - 04:49 PM said:

Not sure if this is a problem for you, but lua hates mixing numbers with strings

Lua provides automatic conversion between string and number values at run time. Any arithmetic operation applied to a string tries to convert this string to a number, following the usual conversion rules. Conversely, whenever a number is used where a string is expected, the number is converted to a string, in a reasonable format. For complete control over how numbers are converted to strings, use the format function from the string library (see string.format).

Hello = {"1","2"}
Jazza[1] = "Goodbye"
Main = { Jazza, Hello }
Jazza = { Main[1] }
print("Jazza[1]")

Main[1] = {}

Teraminer, on 12 July 2012 - 11:32 AM said:

You are trying to use a nill (0, null) vaule. But your code is a bit advanced for me (cause I don't get how args work) so I can't help more that this B)/>/>

tArgs = ...

function foo(...)
tArgs = ...
end

MysticT, on 12 July 2012 - 04:59 PM said:

1lann, on 12 July 2012 - 04:49 PM said:

Not sure if this is a problem for you, but lua hates mixing numbers with strings

Not at all, from the lua manual:

Lua provides automatic conversion between string and number values at run time. Any arithmetic operation applied to a string tries to convert this string to a number, following the usual conversion rules. Conversely, whenever a number is used where a string is expected, the number is converted to a string, in a reasonable format. For complete control over how numbers are converted to strings, use the format function from the string library (see string.format).