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Arrays and Calculation.

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Posted by Jerm   (2 posts)  [Biography] bio
Date Sun 31 Jul 2005 08:45 PM (UTC)
I'm trying to make on key in my table(of numerical values) be a specific number less than another. Here's what I wrote..(doesn't work).

function calculate_stats()
ArraySet ("stats", "siphp", "(ArrayGet ("stats", "truemaxhp) -350)")
note (ArrayGet ("stats", "siphp"))

What I want is to make the siphp key 350 less than the truemaxhp key.

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Posted by Nick Gammon   Australia  (21,609 posts)  [Biography] bio   Forum Administrator
Date Reply #1 on Mon 01 Aug 2005 07:29 AM (UTC)

Amended on Mon 01 Aug 2005 07:31 AM (UTC) by Nick Gammon

Your quotes are a bit strange. You have quoted "(ArrayGet ..." which means it is just a string, not a function that will be called. Also you don't close the quotes for "truemaxhp) .

Last, the function is Note not note (note capitals).

This will work better:

ArraySet ("stats", "siphp", ArrayGet ("stats", "truemaxhp") - 350)
Note (ArrayGet ("stats", "siphp"))

However even this will fail with "attempt to perform arithmetic on a nil value" if you don't put a numeric value into the "stats" array item initially (to say nothing of having to create the array before you do that).

My full test, which worked for me was:

ArrayCreate ("stats")
ArraySet ("stats", "truemaxhp", 10)
ArraySet ("stats", "siphp", ArrayGet ("stats", "truemaxhp") - 350)
Note (ArrayGet ("stats", "siphp"))

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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Posted by Jerm   (2 posts)  [Biography] bio
Date Reply #2 on Mon 01 Aug 2005 11:11 AM (UTC)
Thanks a bunch!
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