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omniwing
Beginner
Joined: 02 Jun 2006
Posts: 19
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 Posted: Thu Apr 10, 2008 11:09 pm
How do I say 'If not, then do this'
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I am new to coding, and am trying to write scripts for my mud that I play. Eventually I would like to write a combat bot for it. Something I am having trouble with is how how to say 'check this. If something isn't present, do this'.
so, I know how to do the opposite...a trigger! For instance, if I type AFF, it shows my affects. So I could set up a trigger that did something when it saw 'sanctuary' after I type AFF. However, how do I make a trigger, that when it types AFF and it doesn't see sanctuary, to cast it?
Also, if I wanted a script that would run to a monster, look at the monster, and if the monster wasn't wearing anything, it would recall...I obviously know how to make a trigger that when it sees an item, to stop a script and alert me.
So, basically, how do I check for states of something that have no value? I suppose maybe something like 'For 2 seconds after you type AFF if you don't see the word sanctuary, then do this". But that seems very roundabout and incorrect.
Thank you for your time.
Omniwing |
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Fang Xianfu
GURU
Joined: 26 Jan 2004
Posts: 5155
Location: United Kingdom
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Posted: Thu Apr 10, 2008 11:32 pm
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Without example text, it's difficult to give you something that'll work out of the box. But here's the technique I use. I'll assume that your text looks like this:
| Quote: |
aff
You are affected by the following:
sanctuary, 500 minutes
protection from evil, 30 minutes
brian blessed impressions, 999999999 minutes
You are affected by 3 spells. |
To capture this, you first need to know when the list of affects begins and ends. That's pretty easy:
#trig {You are affected by the following:} {}
#cond {You are affected by %d spells.} {}
You need a variable to keep your affects in, and you need to set it to blank when the list begins:
#trig {You are affected by the following:} {MyAffs=""}
#cond {You are affected by %d spells.} {}
Now you need a separate trigger that you turn on when the list starts and turn off again when it ends, to capture your affects.
#trig {You are affected by the following:} {MyAffs="";#t+ AffCap}
#cond {You are affected by %d spells.} {#t- Affcap}
#trig "AffCap" {^([%w ]), %d minutes} {} "" {disable}
The AffCap trigger needs to add your affects to a list so you know which affects you've got:
#trig "AffCap" {^([%w ]), %d minutes} {#additem MyAffs %1} "" {disable}
Finally, when your list finishes, you can check to see if something's part of the list with %ismember. Your final script will look something like this:
#trig {You are affected by the following:} {MyAffs="";#t+ AffCap}
#cond {You are affected by %d spells.} {#t- Affcap;#if (!%ismember("sanctuary",@MyAffs)) {cast sanctuary}}
#trig "AffCap" {^([%w ]), %d minutes} {#additem MyAffs %1} "" {disable}
You can add more checks very easily:
#trig {You are affected by the following:} {MyAffs="";#t+ AffCap}
#cond {You are affected by %d spells.} {#t- Affcap;#if (!%ismember("sanctuary",@MyAffs)) {cast sanctuary};#if (%ismember("brian blessed impressions",@MyAffs)) {shout Gordon's Alive!?}}
#trig "AffCap" {^([%w ]), %d minutes} {#additem MyAffs %1} "" {disable}
but remember that you can't always use a spell immediately after using another one. If you didn't have sanctuary but did have brian blessed impressions, you'd perform both actions when you typed AFF. |
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omniwing
Beginner
Joined: 02 Jun 2006
Posts: 19
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Posted: Fri Apr 11, 2008 12:21 am
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Thank you so much, Fang. I will study this! This is exactly what I needed to help me learn how to write code myself.
Much obliged sir!
Omni |
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