Question from a begginer scripter

Desmond

I know this is simple, but I've been teaching myself scripting and cant seem to get it correct. I want a trigger to fire a certain command if a variable equals a certain string. What I'm doing now is making myself auto-swim back the way I came if I get pulled in while fishing. I know how to do it if the variable matches a number, that is with the ==, but how does one get a conditional statement to be true when the variable matches a string? for instance

if fishdir = e or east then swim w

that's obviously not the correct syntax but I'm just trying to clarify what I'm trying to do in the simplest terms.

Kryss

if apple == "green" then send("eat apple") end

In the case of Mudlet. Though having mass stops you from being pulled along while fishing I think.

Desmond

aha! So I need to put it in quotes. There we go. Thanks, Kryss! :P

Desmond

I have another question!! This time about multi-line triggers.

How does one get something to happen, when ONE line of a multi-line trigger is there and another is not? As in a bait check after a failed hook. I have something set up to probe my pole after every failed attempt to hook, and I have the last two lines of the pole description (Bears the mark of, this pole is baited with) now how do I get myself to re-bait if the second line is not there? Do I need to do something else and not use a multi-line trigger?

Lionas

To also clarify, if you're checking a single variable against two things, you still have to reference that variable twice.

This line is wrong:
if fishdir=="e" or "east" then

It is wrong, because what it means is "if fishdir is equal to e, or if east". Since "east" isn't false, that line will always be true. The correct way to do the conditional is:

if fishdir=="e" or fishdir=="east" then

EDIT: And even that is ambiguous to read. It will work, because of order of operations (== is evaluated before or), but just reading it with your eyes it's not entirely clear what parts are executed when. For readability's sake, I'd write it as

if ((fishdir=="e") or (fishdir=="east")) then

Desmond

Lionas said:

To also clarify, if you're checking a single variable against two things, you still have to reference that variable twice.

This line is wrong:
if fishdir=="e" or "east" then

It is wrong, because what it means is "if fishdir is equal to e, or if east". Since "east" isn't false, that line will always be true. The correct way to do the conditional is:

if fishdir=="e" or fishdir=="east" then

EDIT: And even that is ambiguous to read. It will work, because of order of operations (== is evaluated before or), but just reading it with your eyes it's not entirely clear what parts are executed when. For readability's sake, I'd write it as

if ((fishdir=="e") or (fishdir=="east")) then

thanks, but I already figured this out well enough for my own purposes, heh. My second question is giving me a headache now, about the conditional trigger.

Desmond said:

I have another question!! This time about multi-line triggers.

How does one get something to happen, when ONE line of a multi-line trigger is there and another is not? As in a bait check after a failed hook. I have something set up to probe my pole after every failed attempt to hook, and I have the last two lines of the pole description (Bears the mark of, this pole is baited with) now how do I get myself to re-bait if the second line is not there? Do I need to do something else and not use a multi-line trigger?

any idea what to do in this scenario?

Lionas

I don't use mudlet, and haven't in a very long time. In CMUD I'd make a withinlines trigger, but I don't think that's an option in mudlet, so instead I'd do something with multiple triggers, like this:

it bears the mark of - it has the mark I care about, yay! --- set a flag indicating that I'm checking for bait

trigger for line two - it's baited, unset the flag

trigger for prompt - If I'm still checking for bait, that means the bait line never showed up, so I need to reel, bait, cast

Mathiaus

Have an alias do:

send("probe pole")
bait = false

When it checks, you'll see if you have it or not, and have the bait line send:

bait = true

Then have you're prompt right after the bait check line have:

if not bait then
send("bait pole with whatever")
bait = true
end

Lionas

Probably better, cuts out one of the intermediate triggers.

Desmond

I dunno how to set my prompt as a trigger

Lionas

Just like any other trigger. I'd use perl regex.

EDIT:
Here's mine, converted from CMUD pattern matching to regex
^<(\d+)/(\d+)h\(\d+\) (\d+)/(\d+)m\(\d+\) (.*)x <([e-])([b-])>(?: (<.*>)?) (\d+)E (\d+)b$

My prompt looks like this:
<550/550h(100) 488/490m(99) 70.13x <eb> <db> 78E 0b

Akumu

In Mudlet you can use the pattern "return isPrompt()" and set the type to "Lua function". That'd match any prompt, whatever it looks like.

Desmond

thanks, Akumu! I ended up setting the bait check to that line you get when nothing is happening, you know the 'Your line floats motionless' one, but I think I'll change it. That is, if my script doesn't get deemed too automated.

Iniar

Desmond said:

thanks, Akumu! I ended up setting the bait check to that line you get when nothing is happening, you know the 'Your line floats motionless' one, but I think I'll change it. That is, if my script doesn't get deemed too automated.

E: statement retracted.