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add to variable

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Posted by Kurapiira   (25 posts)  [Biography] bio
Date Fri 30 Apr 2010 05:32 AM (UTC)
Message
sorry...

folks on my mud use Mush because it is free.
they want to figure percentages.
Trying to do this..

swings at you...(add one to swings variable)
you parry...(add one to parry variable)

..and eventually...

ttl swings...ttl parry...ttl percent of parries

and a way to clear both variables.

Thanx for any ideas,

Kura
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Posted by Daniel P   USA  (97 posts)  [Biography] bio
Date Reply #1 on Sat 01 May 2010 05:30 AM (UTC)

Amended on Sat 01 May 2010 05:33 AM (UTC) by Daniel P

Message
For starters take a look at the help files for GetVariable("name") and SetVariable("name",value).

Also note that you'll get errors if you try and add a blank variable to a number, so your clear script should initialise them to 0 rather than simply blank them out.

All you need do to set the addition of a variable to 1 is:

SetVariable("VarName",(GetVariable("VarName") + 1))

Then to display, you could use the Note() and GetVariable() functions:

Note("Parry: " .. GetVariable("parryTotal"))
Note("Swing: " .. GetVariable("swingTotal"))

And for your percentage, if I'm guessing right, you will:

Note("Percentage parried: " .. ((GetVariable("parryTotal")/GetVariable("swingTotal"))*100) .. "%")

Clearing is probably the easiest thing, as you will:

SetVariable("varName","0")

Hope that helps!
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Posted by Kurapiira   (25 posts)  [Biography] bio
Date Reply #2 on Tue 04 May 2010 06:03 AM (UTC)

Amended on Tue 04 May 2010 06:28 AM (UTC) by Kurapiira

Message
Many many thanks..this worked great...here is what i got..
__________________
<triggers>
<trigger
enabled="y"
expand_variables="y"
match="^The (.*?) attacks you with (.*?)$"
regexp="y"
send_to="12"
sequence="100"
>
<send>SetVariable("Attacks",(GetVariable("Attacks") + 1))
Note("ttl-Attacks: " .. GetVariable("Attacks"))</send>
</trigger>
</triggers>
___________________

<triggers>
<trigger
enabled="y"
expand_variables="y"
match="^(.*?), but you parry the blow with your (.*?)$"
regexp="y"
send_to="12"
sequence="100"
>
<send>SetVariable("Parries",(GetVariable("Parries") + 1))
SetVariable("Attacks",(GetVariable("Attacks") + 1))
Note("ttl-Attacks: " .. GetVariable("Attacks"))
Note("Parries: " .. GetVariable("Parries"))
Note("Percentage parried: " .. ((GetVariable("parries")/GetVariable("Attacks"))*100) .. "%")</send>
</trigger>
</triggers>

____________________-

and aliases....sc (show counter) and zc..(zero counter)

<aliases>
<alias
match="sc"
enabled="y"
expand_variables="y"
send_to="12"
sequence="100"
>
<send>Note("Attacks: " .. GetVariable("Attacks"))
Note("Parries: " .. GetVariable("Parries"))
Note("Percentage parried: " .. ((GetVariable("parries")/GetVariable("Attacks"))*100) .. "%")</send>
</alias>
</aliases>
_______________-

<aliases>
<alias
match="zc"
enabled="y"
expand_variables="y"
send_to="12"
sequence="100"
>
<send>Note("Zeroing counters")
SetVariable("Attacks","0")
SetVariable("Parries","0")
Note("Attacks: " .. GetVariable("Attacks"))
Note("Parries: " .. GetVariable("Parries"))

</send>
</alias>
</aliases>


________________

Thanks again!...:)
K.

p.s. is there any way to limit the percent thyng to just
3 numbers...i.e. ...

12.53333333
to 12.5

thanx again!
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Posted by Garrion   (21 posts)  [Biography] bio
Date Reply #3 on Tue 04 May 2010 08:13 AM (UTC)
Message
I would use the string.format function.


parry_text = string.format("%4.1f", GetVariable("parryTotal"))
Note("Parry: " .. parry_text)


This should show the variable to 1 decimal place. Not sure if it is the best way to do it but it should work.

Garrion.
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Posted by Larkin   (278 posts)  [Biography] bio
Date Reply #4 on Tue 04 May 2010 02:54 PM (UTC)
Message
GetVariable returns a string, so you should convert the result to a number before you do the math...

SetVariable("name", tonumber(GetVariable("name") or "0") + 1)
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Posted by Daniel P   USA  (97 posts)  [Biography] bio
Date Reply #5 on Wed 05 May 2010 05:39 PM (UTC)

Amended on Wed 05 May 2010 05:40 PM (UTC) by Daniel P

Message
In addition to string.format() you can also use math.floor() and math.ceil() which will round the number either up or down to the nearest integer.

Example in the help file is:

Note(math.floor(5.5))
-->5

Note(math.ceil(5.5))
-->6

But to get the decimal values, yes it is best to use string.format(). The help file on that will have a few examples which should explain all the options.
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Posted by Nick Gammon   Australia  (22,973 posts)  [Biography] bio   Forum Administrator
Date Reply #6 on Wed 05 May 2010 08:57 PM (UTC)
Message
Daniel Powell said:

In addition to string.format() you can also use math.floor() and math.ceil() which will round the number either up or down to the nearest integer.



Also see commas.lua.

Template:post=8608 Please see the forum thread: http://gammon.com.au/forum/?id=8608.


There is a "round" function in that which actually rounds (math.floor and math.ceil truncate up or down, whereas round goes up or down depending on which integer it is closer to).

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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