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Apprentice Joined: 09 Apr 2008 Posts: 168

#MATH is depreciated you can just use () to eval

try

$AABB = (100/50)

#SHOW $AABB

Beginner Joined: 17 May 2024 Posts: 17

I cannot get #MATH to work, curious as to what I'm doing wrong.

I have a spell's duration which is 2 times your current wisdom + 200 (so the total = X seconds)

I made a trigger to capture my wisdom in the @WIS variable
then I made a IWDUR variable (the spells duration) which contains this:

#MATH (200+@WIS+@WIS)

Let us say for this example that my wisdom is 150, so that the WIS variable is 150 - the math becomes 200+150+150=500 seconds duration

However, when I type #SHOW @IWDUR, the output in the mud is this:

"#MATH (200+150 +150 )"

So it is not doing math on it at all..

Apprentice Joined: 03 Jul 2006 Posts: 110

No, #MATH doesn't do math in cMud - it isn't actually a command any more, so the parser is treating it as just a string of text. It is expanding your variables, but not doing anything with them as the expression is considered a line of text.

Get rid of the #MATH command and just leave the expression (200+@WIS+@WIS) and it should evaluate it.

ETA: It is still in the list of commands, so it *SHOULD* work, but it doesn't seem to in your example and isn't needed in any case, so just leave it off.

Beginner Joined: 17 May 2024 Posts: 17

Beginner Joined: 17 May 2024 Posts: 17

Big oooof

The problem was that the trigger capturing my wisdom also captured one blankspace :3

Works as it should now

Edit:
Changed a %1 to "%s(%n)%s" in the capture trigger to avoid getting the blankspace in the variable, this fixed the problem

Posted: Sun Jul 07, 2024 11:43 pm

The #MATH command has been officially deprecated and made redundant, any equation in parentheses will try to evaluate itself, use nested parenthesis when you need to force order of operations.

using %1 as a wildcard is bad form to begin with, that is a captured variable reference
if you just want a numeric value use the %d wildcard, %n is specifically for signed +/- numbers.

P.S. %trim will remove trailing spaces from both sides

Beginner Joined: 17 May 2024 Posts: 17

Posted: Mon Jul 08, 2024 10:10 am

General speaking, there is no real 'best' way to do things, just a bunch of tools in the toolbox

The #HELP command can be used with any command or function to read the help files

#HELP #MATH
#HELP %clip

Beginner Joined: 17 May 2024 Posts: 17

Posted: Mon Jul 08, 2024 11:37 pm

There is a link to all the wildcard characters in #HELP #TRIGGER

Newbie Joined: 09 Nov 2024 Posts: 2 Location: Phoenix

This sounds amazing as I found it very much useful and informative to be honest. Also, I have gone through this post which definitely helped me out a lot as a new member I am looking forward for more such discussions.