Mudlet Scripting

Nyoka

p, li { white-space: pre-wrap; }

string.match(gmcp.Char.Status.level, "^%d+")

Seems to capture the 'level' how would I go about capturing the XP of what's in that GMCP??

Iniar

string.match(gmcp.Char.Status.level, "%d+%.%d+%%")

works, kinda

this: string.match(gmcp.Char.Status.level, "[.%d]+%%")

Nyoka

thanks, I figured that part out but wanted it just the number and not the % on the end, :P Thank tho

Nyoka

Does anyone happen to be good with 'Alignment' and formatting, Im having issues and would love help if anyone is? Design UI stuff is my weak point

Iniar

http://pastebin.com/gcZL843P

Code needs cleaning but lazy/should go do work.

Mathiaus

I use a lot of string.len(variable length) and string.rep(repetition with spaces) within functions to line stuff up.

Iniar

these snippets avoids a lot hard coding lengths

string.lpad = function(str, len, char)

if char == nil then char = ' ' end

return str .. string.rep(char, len - #str)

end

width, height = getMainWindowSize()

local fontSize = 11 

local fontWidth, fontHeight = calcFontSize( fontSize )

local main = ui_main * width / fontWidth -- here ui_main is percentage of width actual game content display, this calculation is the number of characters in the main window (unsure if there's a faster way to do it)

local main_offset = 16 - string.len(name)

local str = string.format( "%s%"..main_offset.."s ", name, "::" )

Iriaen

I've forgotten, like, all of my lua and other scripting skills.

Is there a primer on...
1.  Syntax for sending commands and using embedded variables and so-on.
2.  Structure of if statements in lua.
3.  The syntax for setting variables, including default variables.
4.  A good summary of how to use tables.
5.  Regex!!

Thanks guys!

Kryss

http://wiki.mudlet.org/w/Main_Page
http://www.mudlet.org/asciidoc/manual.html
http://www.regular-expressions.info/tutorial.html

Lots of information gathered here.

Iniar

Is there a primer on...
1.  Syntax for sending commands and using embedded variables and so-on.
2.  Structure of if statements in lua.
3.  The syntax for setting variables, including default variables.
4.  A good summary of how to use tables.
5.  Regex!!

Variables

======

Global assignment is simply done as such:

my_variable = "Iriaen"

For a dynamically named variable, do as such:

targeted_limb = "right leg"

_G[targeted_limb.."_count"] = _G[targeted_limb.."_count"] + 1

Alternatively, I believe you can do (but always hazy on the details):

assert([["right_leg_count" = 3]])

One practice I find useful is doing this:

my_taint = my_taint or 0

This ensures every time I modify my script, I don't re-assign my_taint to 0.

Avoid assigning variable names like 'table', 'string' that are used by the global table.

_G is the global table (if it wasn't clear already).

Tables

====

this_table = {}

this_table = {

pet = 49130,

["right leg"] = 3,

gurrenlagaan = "legendary",

} 

(don't ignore the commas)

table.insert( this_table, "apple" )

table.remove( this_table, 1 ) <- removes element 1

table.remove( this_table, table.index_of( this_table, "apple" ) )

this can be syntaxially shortened to:

this_table:remove( 1 )

You can retrieve values by:

short = my_table.target

Table assignment and retrieval syntax is funny;

my_table.target (is exactly the same as) 

my_table["target"] (but)

my_table["target"] (is not the same as) 

my_table[target]

Tables can be dictionary (key-value) or list (indexed)

Key-Value example

my_table = {

Iriaen = "awesome",

["Iniar"] = "scrub",

}

my_table["Iriaen"] yields "awesome", (as does my_table.Iriaen)

my_table[1] yields nothing

Indexed table,

my_table = {

"Iriaen",

"Iniar",

}

my_table[1] yields "Iriaen"

my_table[2] yields "Iniar"

Sending commands

============

send("rt Iriaen is awesome")

or

local str, target = "rt ", "Iriaen"

str = str..target.." is awesome"

send(str)

yields the exact same thing

Concatenation:

The above is a sample of concatenation.

Most wordy variables are string.

stringn = "Apple juice is sweeter than orange juice"

can be constituted like so,

juice_one = "Apple"

juice_two = "orange"

stringn = juice_one.." juice is sweeter than "..juice_two.." juice"

Handy tip,

function p_send( arg )

if pause == 1 then

-- do nothing

else

send( arg )

end

end

creates a function p_send("stuff") that lets you pause it, then simply use send("stuff") for things you don't wish to ever pause

The IF statement

===========

if true then execute else do_other end

if target == "Iriaen" then send("kick Iriaen") end

Useful comparators

auto_redef = true, (or even auto_redef = 1)

if auto_redef then send("touch owl") end

will work.

if type(target) == "string" then ...

if target_hp > 100 then ...

if table.contains( my_table, target ) then ... or syntaxially,

if my_table:contains( target ) then...

Iterators

=====

For key-value tables, we loop like this;

for k, v in pairs(my_table) do

display(tostring(k))

display(v)

end

For indexed tables, we loop like this;

for i=1, #my_table do

echo( i..": "..my_table[i] )

if i > 5 then break end

end

Regex

====

My two/three favourite capture patterns

(.*) <- everything

(\w+) <- single word

(\d+) <- digit

remember if you capture (\d+), you'll want to do, 

tonumber( thecapture )

before doing

if thecapture > 100 then ...

as it -can- sometimes run as a string (well, it shouldn't but don't let it f you over)

to use the captures, do..

example:

pattern: ^(\w+) kisses (\w+) gently on the lips\.$

matches[1] will be:

Hastati kisses Svorai gently on the lips.

matches[2] will be:

"Hastati"

matches[3] will be:

"Svorai"

For a multiline capture;

Pattern:

^(\w+) kisses (\w+) gently on the lips\.

^(\w+) slaps (\w+) with some vim and vigour\.

multimatches[2][3] will match the fourth (\w+), that is if the second line 'Svorai slaps Iniar with some vim and vigour', then multimatches[2][3] == "Iniar"

Hope that helps.

Iniar

Two of the most useful pieces of code:

This next alias lets you test trigger;

Alias: 

`echo (.*)$

Code:

matches[2] = string.gsub( matches[2], "+n", "\n" )

feedTriggers("\n" .. matches[2] .. "\n")

echo("\n")

Invoked like so;

`echo A pleasant warmth soothes your body and mind.

Secondly, this piece of code lets you run Lua code from the command line;

Alias: 

^lua (.*)$

Code:

local f,e = loadstring("return "..matches[2])

if not f then

f,e = assert(loadstring(matches[2]))

end

local r = f()

if r ~= nil then display(r) end

To invoke it, type into your command line;

lua local str = "Iriaen is awesome" display(str) local tablen = {"Apples","Oranges"} display(tablen)

will run the code as you have it written

Zoroaster

Iriaen here (this is going to be my new character, avatar could use some work), I want to say thank you very much Iniar! I remember that I used to get by doing some fairly complex things in mudlet or IMTS despite knowing only a small number of core scripting techniques, so your posts are exactly the kind of thing I was looking for.  I'm sure I will be referring back to these posts of yours many times ^:)^

Iniar

Excited to see your code!

Svorai

@Iniar, I'm not sure how I feel about your examples.

Iniar

Me neither.

Mathiaus

One of my favorite things is table.contains (table_name, variable) for checking certain lines.

Line: ^(\w+) raises a (.+) high above (?:his|her) head.$

Script: if not table.contains(allies, matches[2]) then send("sweep "..matches[2]) end

Nyoka

you know table.isMember works better then contaains right?

Juran

Mathiaus said:

One of my favorite things is table.contains (table_name, variable) for checking certain lines. Line: ^(\w+) raises a (.+) high above (?:his|her) head.$ Script: if not table.contains(allies, matches[2]) then send("sweep "..matches[2]) end

You people and your complicated and unnecessary lua meta functions.

if (not allies[variable]) then is so much easier, and doesn't require a for loop.

Iniar

That's generally faster except when say:

tablen = {

   open = { "source" },

   afflictions = { "numbness", "asthma" },

   likely_cured = { "hemotoxin", "metrazol" },

   giga = { meter = { "earthquake" }, "orange" },

}

you can do table.contains( tablen, "hemotoxin" ) or even table.contains( tablen, "earthquake" )

and it will traverse all elements of the parent table, even keys

so even table.contains( tablen, "meter" ) would return true

E:Also, my _G table doesn't contain a table.isMember, Nyoka.

Juran

That's useful, to do something like that in stock lua you'd need to write a nested for loop.

It does make me curious though - in what possible situation in Imperian would your code be so disorganized that you would need to search through multiple nested tables for a variable?

Khizan

Why on earth would you want so many nested tables? Why on earth would you want to traverse every element of every table searching for something? 

Iniar

Was just trying to think of a practical example and most things are readily handled with a static declaration! :P

I guess the only instance of a useful table.contains in my scripts is:

if table.contains( gmcp.Char.Skills.Groups, "Shamanism" ) then...

So searching through an indexed table (of tables) would be handy.

E: Also, my code is like my brain -> disorganized!

Mathiaus

Both get the job done, either or.

Mathiaus

Is there a better way to do something like: if affliction == ("anorexia" or "clumsiness" or "stupidity") then send("something") end So I don't have to do that in separate clauses, such as affliction == "anorexia" or affliction == "clumsiness", since the prior doesn't work it seems.

Mathiaus

Is there a better way to do something like: if affliction == ("anorexia" or "clumsiness" or "stupidity") then send("something") end So I don't have to do that in separate clauses, such as affliction == "anorexia" or affliction == "clumsiness", since the prior doesn't work it seems.

Iniar

Local exclude = { "anorexia", "clumsiness", "stupidity" }

If table.contains( exclude, affliction ) then
-- do awesome
end

Saitou

7 hours of trying to code something in Mudlet and I have been defeated.

Iniar

Sorry Saitou, cousins crashed the house so was busy

Kalon

Iniar said:

Sorry Saitou, cousins crashed the house so was busy

Did you try telling them to turn it off and back on again?

Yurii

Hey all, just wanted to say I bought a clan and am inviting anyone who wishes to join it for mudlet related questions/talk. You can hit me up in game if you want an invite, and like I said, everyone is welcome.