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➜ MUSHclient
➜ Lua
➜ alias If statement check for argument
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alias If statement check for argument
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| Posted by
| Errigour
USA (32 posts) Bio
|
| Date
| Fri 19 Jan 2024 04:11 AM (UTC) Amended on Fri 19 Jan 2024 04:46 AM (UTC) by Errigour
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| Message
| I'm trying to make this simple program that casts a spell only if there is no argument passed. i cant figure it out it keeps saying args[1] is indexing a nil value.
if args[1] ~= nil then
Send("cast 'invis'" .. args[1])
end
and while im asking might as well ask how to use the arg in Send to if i'm not right.
Here's the alias:
[string "Alias: "]:1: attempt to index global 'args' (a nil value)
stack traceback:
[string "Alias: "]:1: in main chunk
Alright i think i just figured out a solution still if you want to add anything to this please do.
Send("cast 'invis'%1")
if "%1" == "" then
Send("cast 'detect invis'")
Send("cast 'protection evil'")
Send("cast 'detect evil'")
Send("cast 'detect magic'")
Send("cast 'detect alignment'")
end
Send("cast 'bless'%1")
Send("cast 'armor'%1")
Send("cast 'holy armor'%1")
Send("cast 'frenzy'%1")
| | Top |
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| Posted by
| Fiendish
USA (2,533 posts) Bio
Global Moderator |
| Date
| Reply #1 on Fri 19 Jan 2024 05:04 AM (UTC) Amended on Fri 19 Jan 2024 05:05 AM (UTC) by Fiendish
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| Message
|
Quote:
it keeps saying args[1] is indexing a nil value
This means that your "args" variable is nil, not a table like you expected. Where is args coming from?
Quote:
Send("cast 'invis'%1")
Yes, "%1" is indeed how you get that first (and only) capture from your alias. Glad you figured it out! |
https://github.com/fiendish/aardwolfclientpackage | | Top |
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| Posted by
| Errigour
USA (32 posts) Bio
|
| Date
| Reply #2 on Fri 19 Jan 2024 06:13 PM (UTC) |
| Message
| | oh i thought args[1] was a variable in mushclient. idk then i guess %1 is the only way to get the argument? | | Top |
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| Posted by
| Nick Gammon
Australia (23,120 posts) Bio
Forum Administrator |
| Date
| Reply #3 on Fri 19 Jan 2024 08:02 PM (UTC) |
| Message
| | It depends if you use "send to script" (in which case you use %1) or make a function in a script file, in which case you use args [1]. |
- Nick Gammon
www.gammon.com.au, www.mushclient.com | | Top |
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