Manual:Mudlet Object Functions

Mudlet Object Functions

Collection of functions to manipulate Mudlet's scripting objects - triggers, aliases, and so forth.

addCmdLineSuggestion

addCmdLineSuggestion([name], suggestion)

Add suggestion for tab completion for specified command line.

For example, start typing he and hit TAB until help appears in command line.

Non-word characters are skipped (this is the reason why they can't be added at start of suggestion), therefore it's also possible to type: /he and hit TAB.

See also: clearCmdLineSuggestions(), removeCmdLineSuggestion()

Available in Mudlet4.11+

Parameters

• name: optional command line name, if skipped main command line will be used
• suggestion - suggestion as a single word to add to tab completion (only the following are allowed: 0-9A-Za-z_)

Example:

addCmdLineSuggestion("help")

local suggestions = {"Pneumonoultramicroscopicsilicovolcanoconiosis", "supercalifragilisticexpialidocious", "serendipitous"}
for _, suggestion in ipairs(suggestions) do
  addCmdLineSuggestion(suggestion)
end

adjustStopWatch

adjustStopWatch(watchID/watchName, amount)

Adjusts the elapsed time on the stopwatch forward or backwards by the amount of time. It will work even on stopwatches that are not running, and thus can be used to preset a newly created stopwatch with a negative amount so that it runs down from a negative time towards zero at the preset time.

Parameters

• watchID (number) / watchName (string): The stopwatch ID you get with createStopWatch() or the name given to that function or later set with setStopWatchName().
• amount (decimal number): An amount in seconds to adjust the stopwatch by, positive amounts increase the recorded elapsed time.

Returns

• true on success if the stopwatch was found and thus adjusted, or nil and an error message if not.

Example

-- demo of a persistent stopWatch used to real time a mission
-- called with a positive number of seconds it will start a "missionStopWatch"
-- unless there already is one in which case it will instead report on
-- the deadline. use 'stopStopWatch("missionStopWatch")' when the mission
-- is done and 'deleteStopWatch("missionStopWatch")' when the existing mission
-- is to be disposed of. Until then repeated use of 'mission(interval)' will
-- just give updates...
function mission(time)
  local missionTimeTable = missionTimeTable or {}

  if createStopWatch("missionStopWatch") then
    adjustStopWatch("missionStopWatch", -tonumber(time))
    setStopWatchPersistence("missionStopWatch", true)
    missionTimeTable = getStopWatchBrokenDownTime("missionStopWatch")

    echo(string.format("Get cracking, you have %02i:%02i:%02i hg:m:s left.\n", missionTimeTable.hours, missionTimeTable.minutes, missionTimeTable.seconds))
    startStopWatch("missionStopWatch")
  else
    -- it already exists, so instead report what is/was the time on it
    --[=[ We know that the stop watch exists - we just need to find the ID
      so we can get the running detail which is only available from the getStopWatches()
      table and that is indexed by ID]=]
    for k,v in pairs(getStopWatches()) do
      if v.name == "missionStopWatch" then
        missionTimeTable = v
      end
    end
    if missionTimeTable.isRunning then
      if missionTimeTable.elapsedTime.negative then
        echo(string.format("Better hurry up, the clock is ticking on an existing mission and you only have %02i:%02i:%02i h:m:s left.\n", missionTimeTable.elapsedTime.hours, missionTimeTable.elapsedTime.minutes, missionTimeTable.elapsedTime.seconds))
      else
        echo(string.format("Bad news, you are past the deadline on an existing mission by %02i:%02i:%02i h:m:s !\n", missionTimeTable.elapsedTime.hours, missionTimeTable.elapsedTime.minutes, missionTimeTable.elapsedTime.seconds))
      end
    else
      if missionTimeTable.elapsedTime.negative then
        echo(string.format("Well done! You have already completed a mission %02i:%02i:%02i h:m:s before the deadline ...\n", missionTimeTable.elapsedTime.hours, missionTimeTable.elapsedTime.minutes, missionTimeTable.elapsedTime.seconds))
      else
        echo(string.format("Uh oh! You failed to meet the deadline on an existing mission by %02i:%02i:%02i h:m:s !\n", missionTimeTable.elapsedTime.hours, missionTimeTable.elapsedTime.minutes, missionTimeTable.elapsedTime.seconds))
      end
    end
  end
end


-- in use:
lua mission(60*60)
Get cracking, you have 01:00:00 h:m:s left.

lua mission(60*60)
Better hurry up, the clock is ticking on an existing mission and you only have 00:59:52 h:m:s left.

Available in Mudlet4.4+

appendScript

appendScript(scriptName, luaCode, [occurrence])

Appends Lua code to the script "scriptName". If no occurrence given it sets the code of the first found script.

See also: permScript(), enableScript(), disableScript(), getScript(), setScript()

Returns

• a unique id number for that script.

Parameters

• scriptName: name of the script
• luaCode: scripts luaCode to append
• occurence: (optional) the occurrence of the script in case you have many with the same name

Example

-- an example of appending the script lua code to the first occurrence of "testscript"
appendScript("testscript", [[echo("This is a test\n")]], 1)

Available in Mudlet4.8+

appendCmdLine

appendCmdLine([name], text)

Appends text to the main input line.

See also: printCmdLine(), clearCmdLine()

Parameters

• name: (optional) name of the command line. If not given, the text will be appended to the main commandline.
• text: text to append

Example

-- adds the text "55 backpacks" to whatever is currently in the input line
appendCmdLine("55 backpacks")

-- makes a link, that when clicked, will add "55 backpacks" to the input line
echoLink("press me", "appendCmdLine'55 backpack'", "Press me!")

clearCmdLine

clearCmdLine([name])

Clears the input line of any text that's been entered.

See also: printCmdLine()

Parameters

• name: (optional) name of the command line. If not given, the main commandline's text will be cleared.

Example

-- don't be evil with this!
clearCmdLine()

clearCmdLineSuggestions

clearCmdLineSuggestions([name])

Clears all suggestions for command line.

See also: addCmdLineSuggestion(), removeCmdLineSuggestion()

Parameter

• name: (optional) name of the command line. If not given the main commandline's suggestions will be cleared.

clearCmdLineSuggestions()

createStopWatch

createStopWatch([name], [start immediately])

createStopWatch([start immediately])

Before Mudlet 4.4.0:

createStopWatch()

This function creates a stopwatch, a high resolution time measurement tool. Stopwatches can be started, stopped, reset, asked how much time has passed since the stop watch has been started and, following an update for Mudlet 4.4.0: be adjusted, given a name and be made persistent between sessions (so can time real-life things). Prior to 4.4.0 the function took no parameters and the stopwatch would start automatically when it was created.

Parameters

• start immediately (bool) used to override the behaviour prior to Mudlet 4.4.0 so that if it is the only argument then a false value will cause the stopwatch to be created but be in a stopped state, however if a name parameter is provided then this behaviour is assumed and then a true value is required should it be desired for the stopwatch to be started on creation. This difference between the cases with and without a name argument is to allow for older scripts to continue to work with 4.4.0 or later versions of Mudlet without change, yet to allow for more functionality - such as presetting a time when the stopwatch is created but not to start it counting down until some time afterwards - to be performed as well with a named stopwatch.

• name (string) a unique text to use to identify the stopwatch.

Returns

• the ID (number) of a stopwatch; or, from 4.4.0: a nil + error message if the name has already been used.

See also: startStopWatch(), stopStopWatch(), resetStopWatch(), getStopWatchTime() or, from 4.4.0: adjustStopWatch(), deleteStopWatch(), getStopWatches(), getStopWatchBrokenDownTime(), setStopWatchName(), setStopWatchPersistence()

Example

(Prior to Mudlet 4.4.0) in a global script you can create all stop watches that you need in your system and store the respective stopWatch-IDs in global variables:

fightStopWatch = fightStopWatch or createStopWatch() -- create, or re-use a stopwatch, and store the watchID in a global variable to access it from anywhere

-- then you can start the stop watch in some trigger/alias/script with:
startStopWatch(fightStopWatch)

-- to stop the watch and measure its time in e.g. a trigger script you can write:
fightTime = stopStopWatch(fightStopWatch)
echo("The fight lasted for " .. fightTime .. " seconds.")
resetStopWatch(fightStopWatch)

(From Mudlet 4.4.0) in a global script you can create all stop watches that you need in your system with unique names:

createStopWatch("fightStopWatch") -- creates the stopwatch or returns nil+msg if it already exists

-- then you can start the stop watch (if it is not already started) in some trigger/alias/script with:
startStopWatch("fightStopWatch")

-- to stop the watch and measure its time in e.g. a trigger script you can write:
fightTime = stopStopWatch("fightStopWatch")
echo("The fight lasted for " .. fightTime .. " seconds.")
resetStopWatch("fightStopWatch")

You can also measure the elapsed time without having to stop the stop watch (equivalent to getting a lap-time) with getStopWatchTime().

Note: it's best to re-use stopwatch IDs if you can for Mudlet prior to 4.4.0 as they cannot be deleted, so creating more and more would use more memory. From 4.4.0 the revised internal design has been changed such that there are no internal timers created for each stopwatch - instead either a timestamp or a fixed elapsed time record is used depending on whether the stopwatches is running or stopped so that there are no "moving parts" in the later design and less resources are used - and they can be removed if no longer required.

deleteAllNamedTimers

deleteAllNamedTimers(userName)

Deletes all named timers and prevents them from firing any more. Information is deleted and cannot be retrieved.

See also

registerNamedTimer(), stopNamedTimer()

Available in Mudlet4.14+

Parameters

• userName:

The user name the event handler was registered under.

Example

deleteAllNamedTimers("Demonnic") -- emergency stop or debugging situation, most likely.

deleteNamedTimer

success = deleteNamedTimer(userName, handlerName)

Deletes a named timer with name handlerName and prevents it from firing any more. Information is deleted and cannot be retrieved.

See also

registerNamedTimer(), stopNamedTimer()

Available in Mudlet4.14+

Parameters

• userName:

The user name the event handler was registered under.

• handlerName:

The name of the handler to stop. Same as used when you called registerNamedTimer()

Returns

• true if successful, false if it didn't exist

Example

local deleted = deleteNamedTimer("Demonnic", "DemonVitals")
if deleted then
  cecho("DemonVitals deleted forever!!")
else
  cecho("DemonVitals doesn't exist and so could not be deleted.")
end

deleteStopWatch

deleteStopWatch(watchID/watchName)

This function removes an existing stopwatch, whether it only exists for this session or is set to be otherwise saved between sessions by using setStopWatchPersistence() with a true argument.

Parameters

• watchID (number) / watchName (string): The stopwatch ID you get with createStopWatch() or the name given to that function or later set with setStopWatchName().

Returns

• true if the stopwatch was found and thus deleted, or nil and an error message if not - obviously using it twice with the same argument will fail the second time unless another one with the same name or ID was recreated before the second use. Note that an empty string as a name will find the lowest ID numbered unnamed stopwatch and that will then find the next lowest ID number of unnamed ones until there are none left, if used repetitively!

lua MyStopWatch = createStopWatch("stopwatch_mine")
true

lua display(MyStopWatch)
4

lua deleteStopWatch(MyStopWatch)
true

lua deleteStopWatch(MyStopWatch)
nil

"stopwatch with id 4 not found"

lua deleteStopWatch("stopwatch_mine")
nil

"stopwatch with name "stopwatch_mine" not found"

See also: createStopWatch(),

Available in Mudlet4.4+

Note: Stopwatches that are not set to be persistent will be deleted automatically at the end of a session (or if resetProfile() is called).

removeCmdLineSuggestion

removeCmdLineSuggestion([name], suggestion)

Remove a suggestion for tab completion for specified command line.

See also: addCmdLineSuggestion(), clearCmdLineSuggestions()

Available in Mudlet4.11+

Parameters

• name: optional command line name, if skipped main command line will be used
• suggestion - text to add to tab completion, non words characters at start and end of word should not be used (all characters except: `0-9A-Za-z_`)

Example:

removeCmdLineSuggestion("help")

disableAlias

disableAlias(name)

Disables/deactivates the alias by its name. If several aliases have this name, they'll all be disabled. If you disable an alias group, all the aliases inside the group will be disabled as well.

See also: enableAlias(), disableTrigger(), disableTimer(), disableKey(), disableScript().

Parameters

• name:

The name of the alias. Passed as a string.

Examples

--Disables the alias called 'my alias'
disableAlias("my alias")

disableKey

disableKey(name)

Disables key a key (macro) or a key group. When you disable a key group, all keys within the group will be implicitly disabled as well.

See also: enableKey()

Parameters

• name:

The name of the key or group to identify what you'd like to disable.

Examples

-- you could set multiple keys on the F1 key and swap their use as you wish by disabling and enabling them
disableKey("attack macro")
disableKey("jump macro")
enableKey("greet macro")

disableScript

disableScript(name)

Disables a script that was previously enabled. Note that disabling a script only stops it from running in the future - it won't "undo" anything the script has made, such as labels on the screen.

See also: permScript(), appendScript(), enableScript(), getScript(), setScript()

Parameters

• name: name of the script.

Example

--Disables the script called 'my script'
disableScript("my script")

Available in Mudlet4.8+

disableTimer

disableTimer(name)

Disables a timer from running it’s script when it fires - so the timer cycles will still be happening, just no action on them. If you’d like to permanently delete it, use killTrigger instead.

See also: enableTimer(), disableTrigger(), disableAlias(), disableKey(), disableScript().

Parameters

• name:

Expects the timer ID that was returned by tempTimer on creation of the timer or the name of the timer in case of a GUI timer.

Example

--Disables the timer called 'my timer'
disableTimer("my timer")

disableTrigger

disableTrigger(name)

Disables a permanent (one in the trigger editor) or a temporary trigger. When you disable a group, all triggers inside the group are disabled as well

See also: enableTrigger(), disableAlias(), disableTimer(), disableKey(), disableScript().

Parameters

• name:

Expects the trigger ID that was returned by tempTrigger or other temp*Trigger variants, or the name of the trigger in case of a GUI trigger.

Example

-- Disables the trigger called 'my trigger'
disableTrigger("my trigger")

enableAlias

enableAlias(name)

Enables/activates the alias by it’s name. If several aliases have this name, they’ll all be enabled.

See also: disableAlias()

Parameters

• name:

Expects the alias ID that was returned by tempAlias on creation of the alias or the name of the alias in case of a GUI alias.

Example

--Enables the alias called 'my alias'
enableAlias("my alias")

enableKey

enableKey(name)

Enables a key (macro) or a group of keys (and thus all keys within it that aren't explicitly deactivated).

Parameters

• name:

The name of the group that identifies the key.

-- you could use this to disable one key set for the numpad and activate another
disableKey("fighting keys")
enableKey("walking keys")

Note:' From Version 3.10 returns true if one or more keys or groups of keys were found that matched the name given or false if not; prior to then it returns true if there were any keys - whether they matched the name or not!

enableScript

enableScript(name)

Enables / activates a script that was previously disabled.

See also: permScript(), appendScript(), disableScript(), getScript(), setScript()

Parameters

• name: name of the script.

-- enable the script called 'my script' that you created in Mudlet's script section
enableScript("my script")

Available in Mudlet4.8+

enableTimer

enableTimer(name)

Enables or activates a timer that was previously disabled.

Parameters

• name:

Expects the timer ID that was returned by tempTimer on creation of the timer or the name of the timer in case of a GUI timer.

-- enable the timer called 'my timer' that you created in Mudlets timers section
enableTimer("my timer")

-- or disable & enable a tempTimer you've made
timerID = tempTimer(10, [[echo("hi!")]])

-- it won't go off now
disableTimer(timerID)
-- it will continue going off again
enableTimer(timerID)

enableTrigger

enableTrigger(name)

Enables or activates a trigger that was previously disabled.

Parameters

• name:

Expects the trigger ID that was returned by tempTrigger or by any other temp*Trigger variants, or the name of the trigger in case of a GUI trigger.

-- enable the trigger called 'my trigger' that you created in Mudlets triggers section
enableTrigger("my trigger")

-- or disable & enable a tempTrigger you've made
triggerID = tempTrigger("some text that will match in a line", [[echo("hi!")]])

-- it won't go off now when a line with matching text comes by
disableTrigger(triggerID)

-- and now it will continue going off again
enableTrigger(triggerID)

exists

exists(name/IDnumber, type)

Returns the number of things with the given name or number of the given type - and 0 if none are present. Beware that all numbers are true in Lua, including zero.

Parameters

• name:

The name (as a string) or, from Mudlet 4.17.0, the ID number of a single item, (which will be that returned by a temp* or perm* function to create such an item to identify the item).

• type:

The type can be 'alias', 'button' (Mudlet 4.10+), 'trigger', 'timer', 'keybind' (Mudlet 3.2+), or 'script' (Mudlet 3.17+).

See also: isActive(...)

Example

echo("I have " .. exists("my trigger", "trigger") .. " triggers called 'my trigger'!")

You can also use this alias to avoid creating duplicate things, for example:

-- this code doesn't check if an alias already exists and will keep creating new aliases
permAlias("Attack", "General", "^aa$", [[send ("kick rat")]])

-- while this code will make sure that such an alias doesn't exist first
-- we do == 0 instead of 'not exists' because 0 is considered true in Lua
if exists("Attack", "alias") == 0 then
    permAlias("Attack", "General", "^aa$", [[send ("kick rat")]])
end

Especially helpful when working with permTimer:

if not exists("My animation timer", "timer") then
  vdragtimer = permTimer("My animation timer", "", .016, onVDragTimer) -- 60fps timer!
end
 
enableTimer("My animation timer")

Note: A positive ID number will return either a 1 or 0 value and not a lua boolean true or false as might otherwise be expected, this is for constancy with the way the function behaves for a name.

getButtonState

getButtonState([ButtonNameOrID])

This function can be used within checkbox button scripts (2-state buttons) to determine the current state of the checkbox.

See also: setButtonState().

Note: Function can be used in any Mudlet script outside of a button's own script with parameter ButtonNameOrID available from Mudlet version 4.13.0+

Parameters

• ButtonNameOrID:

a numerical ID or string name to identify the checkbox button.

Returns

• 2 if the button has "checked" state, or 1 if the button is not checked. (or a nil and an error message if ButtonNameOrID did not identify a check-able button)

Example

-- check from within the script of a check-able button:
local checked = getButtonState()
if checked == 1 then
    hideExits()
else
    showExits()
end

-- check from anywhere in another Lua script of the same profile (available from Mudlet 4.13.0)
local checked, errMsg = getButtonState("Sleep")
if checked then
    shouldBeMounted = shouldBeMounted or false
    sendAll("wake", "stand")
    if shouldBeMounted then
        send("mount horse")
    end
else
    -- Global used to record if we were on a horse before our nap:
    shouldBeMounted = mounted or false
    if shouldBeMounted then
        send("dismount")
    end
    sendAll("sit", "sleep")
end

getCmdLine

getCmdLine([name])

Returns the current content of the given command line.

See also: printCmdLine()

Available in Mudlet3.1+

Parameters

• name: (optional) name of the command line. If not given, it returns the text of the main commandline.

Example

-- replaces whatever is currently in the input line by "55 backpacks"
printCmdLine("55 backpacks")

--prints the text "55 backpacks" to the main console
echo(getCmdLine())

getConsoleBufferSize

local lineLimit, sizeOfBatchDeletion = getConsoleBufferSize([consoleName])

Returns, on success, the maximum number of lines a buffer (main window or a miniconsole) can hold and how many will be removed at a time when that limit is exceeded; returns a nil and an error message on failure.

See also: setConsoleBufferSize()

Parameters

• consoleName:

(optional) The name of the window. If omitted, uses the main console.

Example

-- sets the main window's size and how many lines will be deleted
-- when it gets to that size to be as small as possible:
setConsoleBufferSize("main", 1, 1)
true

-- find out what the numbers are:
local lineLimit, sizeOfBatchDeletion = getConsoleBufferSize()
echo("\nWhen the main console gets to " .. lineLimit .. " lines long, the first " .. sizeOfBatchDeletion .. " lines will be removed.\n")
When the main console gets to 100 lines long, the first 1 lines will be removed.

Available in Mudlet4.17+

getNamedTimers

timers = getNamedTimers(userName)

Returns a list of all the named timers' names as a table.

See also

registerNamedTimer()

Available in Mudlet4.14+

Parameters

• userName:

The user name the event handler was registered under.

Returns

• a table of handler names. { "DemonVitals", "DemonInv" } for example. {} if none are registered

Example

  local timers = getNamedTimers("Demonnic")
  display(timers)
  -- {}
  registerNamedTimer("Test1", "testEvent", "testFunction")
  registerNamedTimer("Test2", "someOtherEvent", myHandlerFunction)
  timers = getNamedTimers("Demonnic")
  display(timers)
  -- { "Test1", "Test2" }

getProfileStats

getProfileStats()

Returns a table with profile statistics for how many triggers, patterns within them, aliases, keys, timers, and scripts the profile has. Similar to the Statistics button in the script editor, accessible to Lua scripting.

Available in Mudlet4.15+

Example

-- show all stats
display(getProfileStats())

-- check how many active triggers there are
activetriggers = getProfileStats().triggers.active
cecho(f"<PaleGreen>We have <SlateGrey>{activetriggers}<PaleGreen> active triggers!\n")

-- triggers can have many patterns, so let's check that as well
patterns = getProfileStats().triggers.patterns.active
triggers = getProfileStats().triggers.active
cecho(f"<PaleGreen>We have <SlateGrey>{patterns}<PaleGreen> active patterns within <SlateGrey>{triggers}<PaleGreen> triggers!\n")

getStopWatches

table = getStopWatches()

Returns a table of the details for each stopwatch in existence, the keys are the watch IDs but since there can be gaps in the ID number allocated for the stopwatches it will be necessary to use the pairs(...) rather than the ipairs(...) method to iterate through all of them in for loops!

Each stopwatch's details will list the following items: name (string), isRunning (boolean), isPersistent (boolean), elapsedTime (table). The last of these contains the same data as is returned by the results table from the getStopWatchBrokenDownTime() function - namely days (positive integer), hours (integer, 0 to 23), minutes (integer, 0 to 59), second (integer, 0 to 59), milliSeconds (integer, 0 to 999), negative (boolean) with an additional decimalSeconds (number of seconds, with a decimal portion for the milli-seconds and possibly a negative sign, representing the whole elapsed time recorded on the stopwatch) - as would also be returned by the getStopWatchTime() function.

Example

-- on the command line:
lua getStopWatches()
-- could return something like:
{
  {
    isPersistent = true,
    elapsedTime = {
      minutes = 15,
      seconds = 2,
      negative = false,
      milliSeconds = 66,
      hours = 0,
      days = 18,
      decimalSeconds = 1556102.066
    },
    name = "Playing time",
    isRunning = true
  },
  {
    isPersistent = true,
    elapsedTime = {
      minutes = 47,
      seconds = 1,
      negative = true,
      milliSeconds = 657,
      hours = 23,
      days = 2,
      decimalSeconds = -258421.657
    },
    name = "TMC Vote",
    isRunning = true
  },
  {
    isPersistent = false,
    elapsedTime = {
      minutes = 26,
      seconds = 36,
      negative = false,
      milliSeconds = 899,
      hours = 3,
      days = 0,
      decimalSeconds = 12396.899
    },
    name = "",
    isRunning = false
  },
  [5] = {
    isPersistent = false,
    elapsedTime = {
      minutes = 0,
      seconds = 38,
      negative = false,
      milliSeconds = 763,
      hours = 0,
      days = 0,
      decimalSeconds = 38.763
    },
    name = "",
    isRunning = true
  }
}

Available in Mudlet4.4+

getStopWatchTime

time = getStopWatchTime(watchID [or watchName from Mudlet 4.4.0])

Returns the time as a decimal number of seconds with up to three decimal places to give a milli-seconds (thousandths of a second) resolution.

Please note that, prior to 4.4.0 it was not possible to retrieve the elapsed time after the stopwatch had been stopped, retrieving the time was not possible as the returned value then was an indeterminate, meaningless time; from the 4.4.0 release, however, the elapsed value can be retrieved at any time, even if the stopwatch has not been started since creation or modified with the adjustStopWatch() function introduced in that release.

See also: createStopWatch(), startStopWatch(), stopStopWatch(), deleteStopWatch(), getStopWatches(), getStopWatchBrokenDownTime().

Returns a number

Parameters

• watchID

The ID number of the watch.

Example

-- an example of showing the time left on the stopwatch
teststopwatch = teststopwatch or createStopWatch()
startStopWatch(teststopwatch)
echo("Time on stopwatch: "..getStopWatchTime(teststopwatch))
tempTimer(1, [[echo("Time on stopwatch: "..getStopWatchTime(teststopwatch))]])
tempTimer(2, [[echo("Time on stopwatch: "..getStopWatchTime(teststopwatch))]])
stopStopWatch(teststopwatch)

getStopWatchBrokenDownTime

brokenDownTimeTable = getStopWatchBrokenDownTime(watchID or watchName)

Returns the current stopwatch time, whether the stopwatch is running or is stopped, as a table, broken down into:

• "days" (integer)
• "hours" (integer, 0 to 23)
• "minutes" (integer, 0 to 59)
• "seconds" (integer, 0 to 59)
• "milliSeconds" (integer, 0 to 999)
• "negative" (boolean, true if value is less than zero)

See also: startStopWatch(), stopStopWatch(), deleteStopWatch(), getStopWatches(), getStopWatchTime().

Parameters

• watchID / watchName

The ID number or the name of the watch.

Example

--an example, showing the presetting of a stopwatch.

--This will fail if the stopwatch with the given name
-- already exists, but then we can use the existing one:
local watchId = createStopWatch("TopMudSiteVoteStopWatch")
if watchId ~= nil then
  -- so we have just created the stopwatch, we want it
  -- to be saved for future sessions:
  setStopWatchPersistence("TopMudSiteVoteStopWatch", true)
  -- and set it to count down the 12 hours until we can
  -- revote:
  adjustStopWatch("TopMudSiteVoteStopWatch", -60*60*12)
  -- and start it running
  startStopWatch("TopMudSiteVoteStopWatch")

  openWebPage("http://www.topmudsites.com/vote-wotmud.html")
end

--[[ now I can check when it is time to vote again, even when
I stop the session and restart later by running the following
from a perm timer - perhaps on a 15 minute interval. Note that
when loaded in a new session the Id it gets is unlikely to be
the same as that when it was created - but that is not a
problem as the name is preserved and, if the timer is running
when the profile is saved at the end of the session then the
elapsed time will continue to increase to reflect the real-life
passage of time:]]

local voteTimeTable = getStopWatchBrokenDownTime("TopMudSiteVoteStopWatch")

if voteTimeTable["negative"] then
  if voteTimeTable["hours"] == 0 and voteTimeTable["minutes"] < 30 then
    echo("Voting for WotMUD on Top Mud Site in " .. voteTimeTable["minutes"] .. " minutes...")
  end
else
  echo("Oooh, it is " .. voteTimeTable["days"] .. " days, " .. voteTimeTable["hours"] .. " hours and " .. voteTimeTable["minutes"] .. " minutes past the time to Vote on Top Mud Site - doing it now!")
  openWebPage("http://www.topmudsites.com/vote-wotmud.html")
  resetStopWatch("TopMudSiteVoteStopWatch")
  adjustStopWatch("TopMudSiteVoteStopWatch", -60*60*12)
end

Available in Mudlet4.7+

getScript

getScript(scriptName, [occurrence])

Returns the script with the given name. If you have more than one script with the same name, specify the occurrence to pick a different one. Returns -1 if the script doesn't exist.

See also: permScript(), enableScript(), disableScript(), setScript(), appendScript()

Parameters

• scriptName: name of the script.
• occurrence: (optional) occurence of the script in case you have many with the same name.

Example

-- show the "New script" on screen
print(getScript("New script"))

-- an example of returning the script Lua code from the second occurrence of "testscript"
test_script_code = getScript("testscript", 2)

Available in Mudlet4.8+

invokeFileDialog

invokeFileDialog(fileOrFolder, dialogTitle)

Opens a file chooser dialog, allowing the user to select a file or a folder visually. The function returns the selected path or "" if there was none chosen.

Parameters

• fileOrFolder: true for file selection, false for folder selection.
• dialogTitle: what to say in the window title.

Examples

function whereisit()
  local path = invokeFileDialog(false, "Where should we save the file? Select a folder and click Open")

  if path == "" then return nil else return path end
end

isActive

isActive(name/IDnumber, type)

You can use this function to check if something, or somethings, are active.

Returns the number of active things - and 0 if none are active. Beware that all numbers are true in Lua, including zero.

Parameters

• name:

The name (as a string) or, from Mudlet 4.17.0, the ID number of a single item, (which will be that returned by a temp* function to create such an item to identify the item).

• type:

The type can be 'alias', 'button' (Mudlet 4.10+), 'trigger', 'timer', 'keybind' (Mudlet 3.2+), or 'script' (Mudlet 3.17+).

See also: exists(...)

Example

echo("I have " .. isActive("my trigger", "trigger") .. " currently active trigger(s) called 'my trigger'!")

-- Can also be used to check if a specific item is enabled or not.
if isActive("spellname", "trigger") > 0 then
  -- the spellname trigger is active
else
  -- it is not active
end

Note: A positive ID number that does not exist will still return a 0 value, this is for constancy with the way the function behaves for a name that does not refer to any item either. If necessary the existence of an item should be confirmed with exists(...) first.

isPrompt

isPrompt()

Returns true or false depending on if the line at the cursor position is a prompt. This infallible feature is available for games that supply GA events (to check if yours is one, look to bottom-right of the main window - if it doesn’t say <No GA>, then it supplies them).

Example use could be as a Lua function, making closing gates on a prompt real easy.

Example

-- make a trigger pattern with 'Lua function', and this will trigger on every prompt!
-- note that this is deprecated as we now have the prompt trigger type which does the same thing
-- the function can still be useful for detecting if you're running code on a prompt for other reasons
-- but you should be using a prompt trigger for this rather than a Lua function trigger.
return isPrompt()

killAlias

killAlias(aliasID)

Deletes a temporary alias with the given ID.

Parameters

• aliasID:

The id returned by tempAlias to identify the alias.

-- deletes the alias with ID 5
killAlias(5)

killKey

killKey(name)

Deletes a keybinding with the given name. If several keybindings have this name, they'll all be deleted.

Parameters

• name:

The name or the id returned by tempKey to identify the key.

Available in Mudlet3.2+

-- make a temp key
local keyid = tempKey(mudlet.key.F8, [[echo("hi!")]])

-- delete the said temp key
killKey(keyid)

killTimer

killTimer(id)

Deletes a tempTimer.

Note: Non-temporary timers that you have set up in the GUI or by using permTimer cannot be deleted with this function. Use disableTimer() and enableTimer() to turn them on or off.

Parameters

• id: the ID returned by tempTimer.

Returns true on success and false if the timer id doesn’t exist anymore (timer has already fired) or the timer is not a temp timer.

Example

-- create the timer and remember the timer ID
timerID = tempTimer(10, [[echo("hello!")]])

-- delete the timer
killTimer(timerID)
-- reset the reference to it
timerID = nil

killTrigger

killTrigger(id)

Deletes a tempTrigger, or a trigger made with one of the temp<type>Trigger() functions.

Note: When used in out of trigger contexts, the triggers are disabled and deleted upon the next line received from the game - so if you are testing trigger deletion within an alias, the 'statistics' window will be reporting trigger counts that are disabled and pending removal, and thus are no cause for concern.

Parameters

• id:

The ID returned by a temp<type>Trigger to identify the item. ID is a string and not a number.

Returns true on success and false if the trigger id doesn’t exist anymore (trigger has already fired) or the trigger is not a temp trigger.

Note: As of Mudlet version 4.16.0, triggers created with tempComplexRegexTrigger can only be killed using the name string specified during creation.

permAlias

permAlias(name, parent, regex, lua code)

Creates a persistent alias that stays after Mudlet is restarted and shows up in the Script Editor.

Parameters

• name:

The name you’d like the alias to have.

• parent:

The name of the group, or another alias you want the trigger to go in - however if such a group/alias doesn’t exist, it won’t do anything. Use "" to make it not go into any groups.

• regex:

The pattern that you’d like the alias to use.

• lua code:

The script the alias will do when it matches.

Example

-- creates an alias called "new alias" in a group called "my group"
permAlias("new alias", "my group", "^test$", [[echo ("say it works! This alias will show up in the script editor too.")]])

Note: Mudlet by design allows duplicate names - so calling permAlias with the same name will keep creating new aliases. You can check if an alias already exists with the exists function.

permGroup

permGroup(name, itemtype, [parent])

Creates a new group of a given type. This group will persist through Mudlet restarts.

Parameters

• name:

The name of the new group item you want to create.

• itemtype :

The type of the item, can be one of the following:

trigger

alias

timer

script (available in Mudlet 4.7+)

key (available in Mudlet 4.11+)

• parent (available in Mudlet 3.1+):

(optional) Name of existing item which the new item will be created as a child of. If none is given, item will be at the root level (not nested in any other groups)

Example

--create a new trigger group
permGroup("Combat triggers", "trigger")

--create a new alias group only if one doesn't exist already
if exists("Defensive aliases", "alias") == 0 then
  permGroup("Defensive aliases", "alias")
end

permPromptTrigger

permPromptTrigger(name, parent, lua code)

Creates a persistent trigger for the in-game prompt that stays after Mudlet is restarted and shows up in the Script Editor.

Note: If the trigger is not working, check that the N: bottom-right has a number. This feature requires telnet Go-Ahead (GA) or End-of-Record (EOR) to be enabled in your game. Available in Mudlet 3.6+

Parameters

• name is the name you’d like the trigger to have.
• parent is the name of the group, or another trigger you want the trigger to go in - however if such a group/trigger doesn’t exist, it won’t do anything. Use "" to make it not go into any groups.
• lua code is the script the trigger will do when it matches.

Example

permPromptTrigger("echo on prompt", "", [[echo("hey! this thing is working!\n")]])

permRegexTrigger

permRegexTrigger(name, parent, pattern table, lua code)

Creates a persistent trigger with one or more regex patterns that stays after Mudlet is restarted and shows up in the Script Editor.

Parameters

• name is the name you’d like the trigger to have.
• parent is the name of the group, or another trigger you want the trigger to go in - however if such a group/trigger doesn’t exist, it won’t do anything. Use "" to make it not go into any groups.
• pattern table is a table of patterns that you’d like the trigger to use - it can be one or many.
• lua code is the script the trigger will do when it matches.

Example

-- Create a regex trigger that will match on the prompt to record your status
permRegexTrigger("Prompt", "", {"^(\\d+)h, (\\d+)m"}, [[health = tonumber(matches[2]); mana = tonumber(matches[3])]])

Note: Mudlet by design allows duplicate names - so calling permRegexTrigger with the same name will keep creating new triggers. You can check if a trigger already exists with the exists() function.

permBeginOfLineStringTrigger

permBeginOfLineStringTrigger(name, parent, pattern table, lua code)

Creates a persistent trigger that stays after Mudlet is restarted and shows up in the Script Editor. The trigger will go off whenever one of the regex patterns it's provided with matches. The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls.

Parameters

• name is the name you’d like the trigger to have.
• parent is the name of the group, or another trigger you want the trigger to go in - however if such a group/trigger doesn’t exist, it won’t do anything. Use "" to make it not go into any groups.
• pattern table is a table of patterns that you’d like the trigger to use - it can be one or many.
• lua code is the script the trigger will do when it matches.

Examples

-- Create a trigger that will match on anything that starts with "You sit" and do "stand".
-- It will not go into any groups, so it'll be on the top.
permBeginOfLineStringTrigger("Stand up", "", {"You sit"}, [[send ("stand")]])

-- Another example - lets put our trigger into a "General" folder and give it several patterns.
permBeginOfLineStringTrigger("Stand up", "General", {"You sit", "You fall", "You are knocked over by"}, [[send ("stand")]])

Note: Mudlet by design allows duplicate names - so calling permBeginOfLineStringTrigger with the same name will keep creating new triggers. You can check if a trigger already exists with the exists() function.

permSubstringTrigger

permSubstringTrigger( name, parent, pattern table, lua code )

Creates a persistent trigger with one or more substring patterns that stays after Mudlet is restarted and shows up in the Script Editor.

Parameters

• name is the name you’d like the trigger to have.
• parent is the name of the group, or another trigger you want the trigger to go in - however if such a group/trigger doesn’t exist, it won’t do anything. Use "" to make it not go into any groups.
• pattern table is a table of patterns that you’d like the trigger to use - it can be one or many.
• lua code is the script the trigger will do when it matches.

Example

-- Create a trigger to highlight the word "pixie" for us
permSubstringTrigger("Highlight stuff", "General", {"pixie"},
[[selectString(line, 1) bg("yellow") resetFormat()]])

-- Or another trigger to highlight several different things
permSubstringTrigger("Highlight stuff", "General", {"pixie", "cat", "dog", "rabbit"},
[[selectString(line, 1) fg ("blue") bg("yellow") resetFormat()]])

Note: Mudlet by design allows duplicate names - so calling permSubstringTrigger with the same name will keep creating new triggers. You can check if a trigger already exists with the exists() function.

permScript

permScript(name, parent, lua code)

Creates a new script in the Script Editor that stays after Mudlet is restarted.

Parameters

• name: name of the script.
• parent: name of the script group you want the script to go in.
• lua code: is the code with string you are putting in your script.

Returns

• a unique id number for that script.

See also: enableScript(), exists(), appendScript(), disableScript(), getScript(), setScript()

Example

-- create a script in the "first script group" group
permScript("my script", "first script group", [[send ("my script that's in my first script group fired!")]])
-- create a script that's not in any group; just at the top
permScript("my script", "", [[send ("my script that's in my first script group fired!")]])

-- enable Script - a script element is disabled at creation
enableScript("my script")

Note: The script is called once but NOT active after creation, it will need to be enabled by enableScript().

Note: Mudlet by design allows duplicate names - so calling permScript with the same name will keep creating new script elements. You can check if a script already exists with the exists() function.

Note: If the lua code parameter is an empty string, then the function will create a script group instead.

Available in Mudlet4.8+

permTimer

permTimer(name, parent, seconds, lua code)

Creates a persistent timer that stays after Mudlet is restarted and shows up in the Script Editor.

Parameters

• name

name of the timer.

• parent

name of the timer group you want the timer to go in.

• seconds

a floating point number specifying a delay in seconds after which the timer will do the lua code (stored as the timer's "script") you give it as a string.

• lua code is the code with string you are doing this to.

Returns

• a unique id number for that timer.

Example

-- create a timer in the "first timer group" group
permTimer("my timer", "first timer group", 4.5, [[send ("my timer that's in my first timer group fired!")]])
-- create a timer that's not in any group; just at the top
permTimer("my timer", "", 4.5, [[send ("my timer that's in my first timer group fired!")]])

-- enable timer - they start off disabled until you're ready
enableTimer("my timer")

Note: The timer is NOT active after creation, it will need to be enabled by a call to enableTimer() before it starts.

Note: Mudlet by design allows duplicate names - so calling permTimer with the same name will keep creating new timers. You can check if a timer already exists with the exists() function.

permKey

permKey(name, parent, [modifier], key code, lua code)

Creates a persistent key that stays after Mudlet is restarted and shows up in the Script Editor.

Parameters

• name

name of the key.

• parent

name of the timer group you want the timer to go in or "" for the top level.

• modifier

(optional) modifier to use - can be one of mudlet.keymodifier.Control, mudlet.keymodifier.Alt, mudlet.keymodifier.Shift, mudlet.keymodifier.Meta, mudlet.keymodifier.Keypad, or mudlet.keymodifier.GroupSwitch or the default value of mudlet.keymodifier.None which is used if the argument is omitted. To use multiple modifiers, add them together: (mudlet.keymodifier.Shift + mudlet.keymodifier.Control)

• key code

actual key to use - one of the values available in mudlet.key, e.g. mudlet.key.Escape, mudlet.key.Tab, mudlet.key.F1, mudlet.key.A, and so on. The list is a bit long to list out in full so it is available here.

set to -1 if you want to create a key folder instead.

• lua code'

code you would like the key to run.

Returns

• a unique id number for that key.

Available in Mudlet3.2+, creating key folders in Mudlet 4.10+

Example

-- create a key at the top level for F8
permKey("my key", "", mudlet.key.F8, [[echo("hey this thing actually works!\n")]])

-- or Ctrl+F8
permKey("my key", "", mudlet.keymodifier.Control, mudlet.key.F8, [[echo("hey this thing actually works!\n")]])

-- Ctrl+Shift+W
permKey("jump keybinding", "", mudlet.keymodifier.Control + mudlet.keymodifier.Shift, mudlet.key.W, [[send("jump")]])

Note: Mudlet by design allows duplicate names - so calling permKey with the same name will keep creating new keys. You can check if a key already exists with the exists() function. The key will be created even if the lua code does not compile correctly - but this will be apparent as it will be seen in the Editor.

printCmdLine

printCmdLine([name], text)

Replaces the current text in the input line, and sets it to the given text.

See also: clearCmdLine(), appendCmdLine()

Parameters

• name: (optional) name of the command line. If not given, main commandline's text will be set.
• text: text to set

printCmdLine("say I'd like to buy ")

raiseEvent

raiseEvent(event_name, arg-1, … arg-n)

Raises the event event_name. The event system will call the main function (the one that is called exactly like the script name) of all such scripts in this profile that have registered event handlers. If an event is raised, but no event handler scripts have been registered with the event system, the event is ignored and nothing happens. This is convenient as you can raise events in your triggers, timers, scripts etc. without having to care if the actual event handling has been implemented yet - or more specifically how it is implemented. Your triggers raise an event to tell the system that they have detected a certain condition to be true or that a certain event has happened. How - and if - the system is going to respond to this event is up to the system and your trigger scripts don’t have to care about such details. For small systems it will be more convenient to use regular function calls instead of events, however, the more complicated your system will get, the more important events will become because they help reduce complexity very much.

The corresponding event handlers that listen to the events raised with raiseEvent() need to use the script name as function name and take the correct number of arguments.

See also: raiseGlobalEvent

Note: possible arguments can be string, number, boolean, table, function, or nil.

Example

raiseEvent("fight") a correct event handler function would be: myScript( event_name ). In this example raiseEvent uses minimal arguments, name the event name. There can only be one event handler function per script, but a script can still handle multiple events as the first argument is always the event name - so you can call your own special handlers for individual events. The reason behind this is that you should rather use many individual scripts instead of one huge script that has all your function code etc. Scripts can be organized very well in trees and thus help reduce complexity on large systems.

Where the number of arguments that your event may receive is not fixed you can use ... as the last argument in the function declaration to handle any number of arguments. For example:

-- try this function out with "lua myscripthandler(1,2,3,4)"
function myscripthandler(a, b, ...)
  print("Arguments a and b are: ", a,b)
  -- save the rest of the arguments into a table
  local otherarguments = {...}
  print("Rest of the arguments are:")
  display(otherarguments)

  -- access specific otherarguments:
  print("First and second otherarguments are: ", otherarguments[1], otherarguments[2])
end

raiseGlobalEvent

raiseGlobalEvent(event_name, arg-1, … arg-n)

Like raiseEvent() this raises the event "event_name", but this event is sent to all other opened profiles instead. The profiles receive the event in circular alphabetical order (if profile "C" raised this event and we have profiles "A", "C", and "E", the order is "E" -> "A", but if "E" raised the event the order would be "A" -> "C"); execution control is handed to the receiving profiles so that means that long running events may lock up the profile that raised the event.

The sending profile's name is automatically appended as the last argument to the event.

Note: possible arguments can be string, number, boolean, or nil, but not table or function.

Example

-- from profile called "My game" this raises an event "my event" with additional arguments 1, 2, 3, "My game" to all profiles except the original one
raiseGlobalEvent("my event", 1, 2, 3)

-- want the current profile to receive it as well? Use raiseEvent
raiseEvent("my event", 1, 2, 3)

-- example of calling functions in one profile from another:
-- profile B:
control = control or {}
function control.updateStatus()
  disableTrigger("test triggers")
  print("disabling triggers worked!")
end

-- this handles calling the right function in the control table
function control.marshaller(_, callfunction)
  if control[callfunction] then control[callfunction]()
  else
    cecho("<red>Asked to call an unknown function: "..callfunction)
  end
end

registerAnonymousEventHandler("sysSendAllProfiles", "control.marshaller")

-- profile A:
raiseGlobalEvent("sysSendAllProfiles", "updateStatus")
raiseGlobalEvent("sysSendAllProfiles", "invalidfunction")

Available in Mudlet3.1.0+

Tip: you might want to add the profile name to your plain raiseEvent() arguments. This'll help you tell which profile your event came from similar to raiseGlobalEvent().

registerNamedTimer

success = registerNamedTimer(userName, timerName, time, functionReference, [repeating])

Registers a named timer with name timerName. Named timers are protected from duplication and can be stopped and resumed, unlike normal tempTimers. A separate list is kept for each userName, to enforce name spacing and avoid collisions

See also

tempTimer(), stopNamedTimer(), resumeNamedTimer(), deleteNamedTimer(), registerNamedEventHandler()

Available in Mudlet4.14+

Parameters

• userName:

The user name the event handler was registered under.

• timerName:

The name of the handler. Used to reference the handler in other functions and prevent duplicates. Recommended you use descriptive names, "hp" is likely to collide with something else, "DemonVitals" less so.

• time:

The amount of time in seconds to wait before firing.

• functionReference:

The function reference to run when the event comes in. Can be the name of a function, "handlerFunction", or the lua function itself.

• repeating:

(optional) if true, the timer continue to fire until the stop it using stopNamedTimer()

Returns

• true if successful, otherwise errors.

Example

-- establish a named timer called "Check balance" which runs balanceChecker() after 1 second
-- it is started automatically when registered, and fires only once despite being run twice
-- you wouldn't do this intentionally, but illustrates the duplicate protection
registerNamedTimer("Demonnic", "Check Balance", 1, balanceChecker)
registerNamedTimer("Demonnic", "Check Balance", 1, balanceChecker)

-- then the next time you want to make/use the same timer, you can shortcut it with
resumeNamedTimer("Demonnic", "Check Balance")

remainingTime

remainingTime(timer id number or name)

Returns the remaining time in floating point form in seconds (if it is active) for the timer (temporary or permanent) with the id number or the (first) one found with the name.

If the timer is inactive or has expired or is not found it will return a nil and an error message. It, theoretically could also return 0 if the timer is overdue, i.e. it has expired but the internal code has not yet been run but that has not been seen in during testing. Permanent offset timers will only show as active during the period when they are running after their parent has expired and started them.

Available in Mudlet3.20+

Example

tid = tempTimer(600, [[echo("\nYour ten minutes are up.\n")]])
echo("\nYou have " .. remainingTime(tid) .. " seconds left, use it wisely... \n")

-- Will produce something like:

You have 599.923 seconds left, use it wisely... 

-- Then ten minutes time later:

Your ten minutes are up.

resetProfileIcon

resetProfileIcon()

Resets the profile's icon in the connection screen to default.

See also: setProfileIcon().

Available in Mudlet4.0+

Example

resetProfileIcon()

resetStopWatch

resetStopWatch(watchID)

This function resets the time to 0:0:0.0, but does not stop or start the stop watch. You can stop it with stopStopWatch or start it with startStopWatch → createStopWatch

resumeNamedTimer

success = resumeNamedTimer(userName, handlerName)

Resumes a named timer with name handlerName and causes it to fire again. One time unless it was registered as repeating.

See also

registerNamedTimer(), stopNamedTimer()

Available in Mudlet4.14+

Parameter

• userName:

The user name the event handler was registered under.s

• handlerName:

The name of the handler to resume. Same as used when you called registerNamedTimer()

Returns

• true if successful, false if it didn't exist. If the timer is waiting to fire it will be restarted at 0.

Example

local resumed = resumeNamedTimer("Demonnic", "DemonVitals")
if resumed then
  cecho("DemonVitals resumed!")
else
  cecho("DemonVitals doesn't exist, so cannot resume it.")
end

setButtonState

setButtonState(ButtonNameOrID, checked)

Sets the state of a check-able ("push-down") type button from any Mudlet item's script - but does not cause the script or one of the commands associated with that button to be run/sent.

See also: getButtonState().

Available in Mudlet4.13+

Parameters

• ButtonNameOrID:

The name of the button as a string or a unique ID (positive) integer number {for a name only one matching one will be affected - it will be the same one that the matching getButtonState() reports upon}.

• checked:

boolean value that indicated whether the state required is down (true) or up (false).

Returns

• A boolean value indicating true if the visible state was actually changed, i.e. had any effect. This function will return a nil and a suitable error message if the identifying name or ID was not found or was not a check-able (push-down) button item (i.e. was a non-checkable button or a menu or a toolbar instead).

Example

-- inside, for example, an initialization script for a GUI package:
setButtonState("Sleep", false)
setButtonState("Sit", false)
-- these are going to be used as "radio" buttons where setting one
-- of them will unset all the others, they will each need something
-- similar in their own scripts to unset all the others in the set
-- and also something to prevent them from being unset by clicking
-- on themselves:
setButtonState("Wimpy", true)
setButtonState("Defensive", false)
setButtonState("Normal", false)
setButtonState("Brave", false)
if character.type == "Warrior" then
    -- Only one type has this mode - and it can only be reset by
    -- something dying (though that could be us!)
    setButtonState("Beserk!!!", false)
end

setConsoleBufferSize

setConsoleBufferSize([consoleName], linesLimit, sizeOfBatchDeletion)

Sets the maximum number of lines a buffer (main window or a miniconsole) can hold. Default is 10,000.

Returns nothing on success (up to Mudlet 4.16) or true (from Mudlet 4.17); nil and an error message on failure.

Parameters

• consoleName:

(optional) The name of the window. If omitted, uses the main console.

• linesLimit:

Sets the amount of lines the buffer should have.

Note: Mudlet performs extremely efficiently with even huge numbers, but there is of course a limit to your computer's memory. As of Mudlet 4.7+, this amount will be capped to that limit on macOS and Linux (on Windows, it's capped lower as Mudlet on Windows is 32bit).

• sizeOfBatchDeletion:

Specifies how many lines should Mudlet delete at once when you go over the limit - it does it in bulk because it's efficient to do so.

Example

-- sets the main windows size to 1 million lines maximum - which is more than enough!
setConsoleBufferSize("main", 1000000, 1000)

setProfileIcon

setProfileIcon(iconPath)

Set a custom icon for this profile in the connection screen.

Returns true if successful, or nil+error message if not.

See also: resetProfileIcon().

Available in Mudlet4.0+

Parameters

• iconPath:

Full location of the icon - can be .png or .jpg with ideal dimensions of 120x30.

Example

-- set a custom icon that is located in an installed package called "mypackage"
setProfileIcon(getMudletHomeDir().."/mypackage/icon.png")

setScript

setScript(scriptName, luaCode, [occurrence])

Sets the script's Lua code, replacing existing code. If you have many scripts with the same name, use the 'occurrence' parameter to choose between them.

If you'd like to add code instead of replacing it, have a look at appendScript().

Returns -1 if the script isn't found - to create a script, use permScript().

See also: permScript(), enableScript(), disableScript(), getScript(), appendScript()

Returns

• a unique id number for that script.

Parameters

• scriptName: name of the script to change the code.
• luaCode: new Lua code to set.
• occurrence: The position of the script. Optional, defaults to 1 (first).

Example

-- make sure a script named "testscript" exists first, then do:
setScript("testscript", [[echo("This is a test\n")]], 1)

Available in Mudlet4.8+

setStopWatchName

setStopWatchName(watchID/currentStopWatchName, newStopWatchName)

Parameters

• watchID (number) / currentStopWatchName (string): The stopwatch ID you get from createStopWatch() or the name supplied to that function at that time, or previously applied with this function.
• newStopWatchName (string): The name to use for this stopwatch from now on.

Returns

• true on success, nil and an error message if no matching stopwatch is found.

Note: Either currentStopWatchName or newStopWatchName may be empty strings: if the first of these is so then the lowest ID numbered stopwatch without a name is chosen; if the second is so then an existing name is removed from the chosen stopwatch.

setStopWatchPersistence

setStopWatchPersistence(watchID/watchName, state)

Parameters

• watchID (number) / watchName (string): The stopwatch ID you get from createStopWatch() or the name supplied to that function or applied later with setStopWatchName()
• state (boolean): if true the stopWatch will be saved.

Returns

• true on success, nil and an error message if no matching stopwatch is found.

Sets or resets the flag so that the stopwatch is saved between sessions or after a resetProfile() call. If set then, if stopped the elapsed time recorded will be unchanged when the stopwatch is reloaded in the next session; if running the elapsed time will continue to increment and it will include the time that the profile was not loaded, therefore it can be used to measure events in real-time, outside of the profile!

Note: When a persistent stopwatch is reloaded in a later session (or after a use of resetProfile()) the stopwatch may not be allocated the same ID number as before - therefore it is advisable to assign any persistent stopwatches a name, either when it is created or before the session is ended.

setTriggerStayOpen

setTriggerStayOpen(name, number of lines)

Sets for how many more lines a trigger script should fire or a chain should stay open after the trigger has matched - so this allows you to extend or shorten the fire length of a trigger. The main use of this function is to close a chain when a certain condition has been met.

Parameters

• name: The name of the trigger which has a fire length set (and which opens the chain).
• number of lines: 0 to close the chain, or a positive number to keep the chain open that much longer.

Examples

-- if you have a trigger that opens a chain (has some fire length) and you'd like it to be closed 
-- on the next prompt, you could make a prompt trigger inside the chain with a script of:
setTriggerStayOpen("Parent trigger name", 0)
-- to close it on the prompt!

startStopWatch

startStopWatch(watchName or watchID, [resetAndRestart])

Stopwatches can be stopped (with stopStopWatch()) and then re-started any number of times. To ensure backwards compatibility, if the stopwatch is identified by a numeric argument then, unless a second argument of false is supplied as well this function will also reset the stopwatch to zero and restart it - whether it is running or not; otherwise only a stopped watch can be started and only a started watch may be stopped. Trying to repeat either will produce a nil and an error message instead; also the recorded time is no longer reset so that they can now be used to record a total of isolated periods of time like a real stopwatch.

See also: createStopWatch(), stopStopWatch()

Parameters

• watchID/watchName: The stopwatch ID you get with createStopWatch(), or from 4.4.0 the name assigned with that function or setStopWatchName().
• resetAndRestart: Boolean flag needed (as false) to make the function from 4.4.0, when supplied with a numeric watch ID, to not reset the stopwatch and only start a previously stopped stopwatch. This behavior is automatic when a string watch name is used to identify the stopwatch but differs from how the function behaved prior to that version.

Returns

• true on success, nil and an error message if no matching stopwatch is found or if it cannot be started (because the later style behavior was indicated and it was already running).

Examples

-- this is a common pattern for re-using stopwatches prior to 4.4.0 and starting them:
watch = watch or createStopWatch()
startStopWatch(watch)

After 4.4.0 the above code will work the same as it does not provide a second argument to the startStopWatch() function - if a false was used there it would be necessary to call stopStopWatch(...) and then resetStopWatch(...) before using startStopWatch(...) to re-use the stopwatch if the ID form is used, this is thus not quite the same behavior but it is more consistent with the model of how a real stopwatch would act.

stopAllNamedTimers

stopAllNamedTimers(userName)

Stops all named timers for userName and prevents them from firing any more. Information is retained and timers can be resumed.

See also

registerNamedTimer(), stopNamedTimer(), resumeNamedTimer()

Available in Mudlet4.14+

Example

stopAllNamedTimers("Demonnic") -- emergency stop situation, most likely.

stopNamedTimer

success = stopNamedTimer(userName, handlerName)

Stops a named timer with name handlerName and prevents it from firing any more. Information is stored so it can be resumed later if desired.

See also

registerNamedTimer(), resumeNamedTimer()

Available in Mudlet4.14+

Parameters

• userName:

The user name the event handler was registered under.

• handlerName:

The name of the handler to stop. Same as used when you called registerNamedTimer()

Returns

• true if successful, false if it didn't exist or was already stopped

Example

local stopped = stopNamedTimer("Demonnic", "DemonVitals")
if stopped then
  cecho("DemonVitals stopped!")
else
  cecho("DemonVitals doesn't exist or already stopped; either way it won't fire any more.")
end

stopStopWatch

stopStopWatch(watchID or watchName)

"Stops" (though see the note below) the stop watch and returns (only the first time it is called after the stopwatch has been set running with startStopWatch()) the elapsed time as a number of seconds, with a decimal portion give a resolution in milliseconds (thousandths of a second). You can also retrieve the current time without stopping the stopwatch with getStopWatchTime(), getBrokenDownStopWatchTime().

See also: createStopWatch()

Parameters

• watchID: The stopwatch ID you get with createStopWatch() or from Mudlet 4.4.0 the name given to that function or later set with setStopWatchName().

Returns

• the elapsed time as a floating-point number of seconds - it may be negative if the time was previously adjusted/preset to a negative amount (with adjustStopWatch()) and that period has not yet elapsed.

Examples

-- this is a common pattern for re-using stopwatches and starting them:
watch = watch or createStopWatch()
startStopWatch(watch)

-- do some long-running code here ...

print("The code took: "..stopStopWatch(watch).."s to run.")

tempAnsiColorTrigger

tempAnsiColorTrigger(foregroundColor[, backgroundColor], code[, expireAfter])

This is an alternative to tempColorTrigger() which supports the full set of 256 ANSI color codes directly and makes a color trigger that triggers on the specified foreground and background color. The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls. The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter.

Parameters

• foregroundColor: The foreground color you'd like to trigger on.
• backgroundColor: The background color you'd like to trigger on.
• code to do: The code to do when the trigger runs - wrap it in [[ ]], or give it a Lua function.
• expireAfter: Delete trigger after a specified number of matches. You can make a trigger match not count towards expiration by returning true after it fires.

BackgroundColor and/or expireAfter may be omitted.

Color codes (note that the values greater than or equal to zero are the actual number codes that ANSI and the game server uses for the 8/16/256 color modes)

Special codes (may be extended in the future):

-2 = default text color (what is used after an ANSI SGR 0 m code that resets the foreground and background colors to those set in the preferences)

-1 = ignore (only one of the foreground or background codes can have this value - otherwise it would not be a color trigger!)

ANSI 8-color set:

0 = (dark) black

1 = (dark) red

2 = (dark) green

3 = (dark) yellow

4 = (dark) blue

5 = (dark) magenta

6 = (dark) cyan

7 = (dark) white {a.k.a. light gray}

Additional colors in 16-color set:

8 = light black {a.k.a. dark gray}

9 = light red

10 = light green

11 = light yellow

12 = light blue

13 = light magenta

14 = light cyan

15 = light white

6 x 6 x 6 RGB (216) colors, shown as a 3x2-digit hex code

16 = #000000

17 = #000033

18 = #000066

...

229 = #FFFF99

230 = #FFFFCC

231 = #FFFFFF

24 gray-scale, also show as a 3x2-digit hex code

232 = #000000

233 = #0A0A0A

234 = #151515

...

253 = #E9E9E9

254 = #F4F4F4

255 = #FFFFFF

Examples

-- This script will re-highlight all text in a light cyan foreground color on any background with a red foreground color
-- until another foreground color in the current line is being met. temporary color triggers do not offer match_all
-- or filter options like the GUI color triggers because this is rarely necessary for scripting.
-- A common usage for temporary color triggers is to schedule actions on the basis of forthcoming text colors in a particular context.
tempAnsiColorTrigger(14, -1, [[selectString(matches[1],1) fg("red")]])
-- or:
tempAnsiColorTrigger(14, -1, function()
  selectString(matches[1], 1)
  fg("red")
end)

-- match the trigger only 4 times
tempColorTrigger(14, -1, [[selectString(matches[1],1) fg("red")]], 4)

Available in Mudlet3.17+

tempAlias

aliasID = tempAlias(regex, code to do)

Creates a temporary alias - temporary in the sense that it won't be saved when Mudlet restarts (unless you re-create it). The alias will go off as many times as it matches, it is not a one-shot alias. The function returns an ID for subsequent enableAlias(), disableAlias() and killAlias() calls.

Parameters

• regex: Alias pattern in regex.
• code to do: The code to do when the alias fires - wrap it in [[ ]].

Examples

myaliasID = tempAlias("^hi$", [[send ("hi") echo ("we said hi!")]])

-- you can also delete the alias later with:
killAlias(myaliasID)

-- tempAlias also accepts functions (and thus closures) - which can be an easier way to embed variables and make the code for an alias look less messy:

local variable = matches[2]
tempAlias("^hi$", function () send("hello, " .. variable) end)

tempBeginOfLineTrigger

tempBeginOfLineTrigger(part of line, code, expireAfter)

Creates a trigger that will go off whenever the part of line it's provided with matches the line right from the start (doesn't matter what the line ends with). The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter. The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls.

Parameters

• part of line: start of the line that you'd like to match. This can also be regex.
• code to do: code to do when the trigger runs - wrap it in [[ ]], or give it a Lua function (since Mudlet 3.5.0).
• expireAfter: Delete trigger after a specified number of matches (since Mudlet 3.11). You can make a trigger match not count towards expiration by returning true after it fires.

Examples

mytriggerID = tempBeginOfLineTrigger("Hello", [[echo("We matched!")]])

--[[ now this trigger will match on any of these lines:
Hello
Hello!
Hello, Bob!

but not on:
Oh, Hello
Oh, Hello!
]]

-- or as a function:
mytriggerID = tempBeginOfLineTrigger("Hello", function() echo("We matched!") end)

-- you can make the trigger match only a certain amount of times as well, 5 in this example:
tempBeginOfLineTrigger("This is the start of the line", function() echo("We matched!") end, 5)

-- if you want a trigger match not to count towards expiration, return true. In this example it'll match 5 times unless the line is "Start of line and this is the end."
tempBeginOfLineTrigger("Start of line", 
function()
  if line == "Start of line and this is the end." then
    return true
  else
    return false
  end
end, 5)

tempButton

tempButton(toolbar name, button text, orientation)

Creates a temporary button. Temporary means, it will disappear when Mudlet is closed.

Parameters

• toolbar name: The name of the toolbar to place the button into.
• button text: The text to display on the button.
• orientation: a number 0 or 1 where 0 means horizontal orientation for the button and 1 means vertical orientation for the button. This becomes important when you want to have more than one button in the same toolbar.

Example

-- makes a temporary toolbar with two buttons at the top of the main Mudlet window 
lua tempButtonToolbar("topToolbar", 0, 0)
lua tempButton("topToolbar", "leftButton", 0)
lua tempButton("topToolbar", "rightButton", 0)

Note: This function is not that useful as there is no function yet to assign a Lua script or command to such a temporary button - though it may have some use to flag a status indication!

tempButtonToolbar

tempButtonToolbar(name, location, orientation)

Creates a temporary button toolbar. Temporary means, it will disappear when Mudlet is closed.

Parameters

• name: The name of the toolbar.
• location: a number from 0 to 3, where 0 means "at the top of the screen", 1 means "left side", 2 means "right side" and 3 means "in a window of its own" which can be dragged and attached to the main Mudlet window if needed.
• orientation: a number 0 or 1, where 0 means horizontal orientation for the toolbar and 1 means vertical orientation for the toolbar. This becomes important when you want to have more than one toolbar in the same location of the window.

Example

-- makes a temporary toolbar with two buttons at the top of the main Mudlet window 
lua tempButtonToolbar("topToolbar", 0, 0)
lua tempButton("topToolbar", "leftButton", 0)
lua tempButton("topToolbar", "rightButton", 0)

tempColorTrigger

tempColorTrigger(foregroundColor, backgroundColor, code, expireAfter)

Makes a color trigger that triggers on the specified foreground and background color. Both colors need to be supplied in form of these simplified ANSI 16 color mode codes. The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls. The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter.

See also: tempAnsiColorTrigger

Parameters

• foregroundColor: The foreground color you'd like to trigger on (for ANSI colors, see tempAnsiColorTrigger).
• backgroundColor: The background color you'd like to trigger on (same as above).
• code to do: The code to do when the trigger runs - wrap it in [[ and ]], or give it a Lua function, ie. function() <your code here> end (since Mudlet 3.5.0).
• expireAfter: Delete trigger after a specified number of matches (since Mudlet 3.11). You can make a trigger match not count towards expiration by returning true after it fires.

Color codes

0 = default text color
1 = light black
2 = dark black
3 = light red
4 = dark red
5 = light green
6 = dark green
7 = light yellow
8 = dark yellow
9 = light blue
10 = dark blue
11 = light magenta
12 = dark magenta
13 = light cyan
14 = dark cyan
15 = light white
16 = dark white

Examples

-- This script will re-highlight all text in blue foreground colors on a black background with a red foreground color
-- on a blue background color until another color in the current line is being met. temporary color triggers do not 
-- offer match_all or filter options like the GUI color triggers because this is rarely necessary for scripting. 
-- A common usage for temporary color triggers is to schedule actions on the basis of forthcoming text colors in a particular context.
tempColorTrigger(9, 2, [[selectString(matches[1],1) fg("red") bg("blue")]])
-- or:
tempColorTrigger(9, 2, function()
  selectString(matches[1], 1)
  fg("red")
  bg("blue")
end)

-- match the trigger only 4 times
tempColorTrigger(9, 2, [[selectString(matches[1],1) fg("red") bg("blue")]], 4)

tempComplexRegexTrigger

tempComplexRegexTrigger(name, regex, code, multiline, fg color, bg color, filter, match all, highlight fg color, highlight bg color, play sound file, fire length, line delta, expireAfter)

Allows you to create a temporary trigger in Mudlet, using any of the UI-available options. The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter.

Returns the trigger ID or nil and an error message (on error).

Parameters

• name - The name you call this trigger. You can use this with killTrigger().
• regex - The regular expression you want to match.
• code - Code to do when the trigger runs. You need to wrap it in [[ ]], or give a Lua function (since Mudlet 3.5.0).
• multiline - Set this to 1, if you use multiple regex (see note below), and you need the trigger to fire only if all regex have been matched within the specified line delta. Then all captures will be saved in multimatches instead of matches. If this option is set to 0, the trigger will fire when any regex has been matched.
• fg color - The foreground color you'd like to trigger on - Not currently implemented.
• bg color - The background color you'd like to trigger on - Not currently implemented.
• filter - Do you want only the filtered content (=capture groups) to be passed on to child triggers? Otherwise also the initial line.
• match all - Set to 1, if you want the trigger to match all possible occurrences of the regex in the line. When set to 0, the trigger will stop after the first successful match.
• highlight fg color - The foreground color you'd like your match to be highlighted in. e.g. "yellow", "#ff0" or "#ffff00"
• highlight bg color - The background color you'd like your match to be highlighted in. e.g. "red", "#f00" or "#ff0000"
• play sound file - Set to the name of the sound file you want to play upon firing the trigger. e.g. "C:/windows/media/chord.wav"
• fire length - Number of lines within which all condition must be true to fire the trigger.
• line delta - Keep firing the script for x more lines, after the trigger or chain has matched.
• expireAfter - Delete trigger after a specified number of matches (since Mudlet 3.11). You can make a trigger match not count towards expiration by returning true after it fires.

Note: Set the options starting at multiline to 0, if you don't want to use those options. Otherwise enter 1 to activate or the value you want to use.

Note: If you want to use the color option, you need to provide both fg and bg together. - Not currently implemented.

Examples

-- This trigger will be activated on any new line received.
triggerNumber = tempComplexRegexTrigger("anyText", "^(.*)$", [[echo("Text received!")]], 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, nil)

-- This trigger will match two different regex patterns:
tempComplexRegexTrigger("multiTrigger", "first regex pattern", [[]], 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, nil)
tempComplexRegexTrigger("multiTrigger", "second regex pattern", [[echo("Trigger matched!")]], 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, nil)

Note: For making a multiline trigger like in the second example, you need to use the same trigger name and options, providing the new pattern to add. Note that only the last script given will be set, any others ignored.

tempExactMatchTrigger

tempExactMatchTrigger(exact line, code, expireAfter)

Creates a trigger that will go off whenever the line from the game matches the provided line exactly (ends the same, starts the same, and looks the same). You don't need to use any of the regex symbols here (^ and $). The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls. The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter.

Parameters

• exact line: exact line you'd like to match.
• code: code to do when the trigger runs - wrap it in [[ ]], or give it a Lua function (since Mudlet 3.5.0).
• expireAfter: Delete trigger after a specified number of matches (since Mudlet 3.11). You can make a trigger match not count towards expiration by returning true after it fires.

Examples

mytriggerID = tempExactMatchTrigger("You have recovered balance on all limbs.", [[echo("We matched!")]])

-- as a function:
mytriggerID = tempExactMatchTrigger("You have recovered balance on all limbs.", function() echo("We matched!") end)

-- expire after 4 matches:
tempExactMatchTrigger("You have recovered balance on all limbs.", function() echo("Got balance back!\n") end, 4)

-- you can also avoid expiration by returning true:
tempExactMatchTrigger("You have recovered balance on all limbs.", function() echo("Got balance back!\n") return true end, 4)

tempKey

tempKey([modifier], key code, lua code)

Creates a keybinding. This keybinding isn't temporary in the sense that it'll go off only once (it'll go off as often as you use it), but rather it won't be saved when Mudlet is closed.

See also: permKey(), killKey()

• modifier

(optional) modifier to use - can be one of mudlet.keymodifier.Control, mudlet.keymodifier.Alt, mudlet.keymodifier.Shift, mudlet.keymodifier.Meta, mudlet.keymodifier.Keypad, or mudlet.keymodifier.GroupSwitch or the default value of mudlet.keymodifier.None which is used if the argument is omitted. To use multiple modifiers, add them together: (mudlet.keymodifier.Shift + mudlet.keymodifier.Control)

• key code

actual key to use - one of the values available in mudlet.key, e.g. mudlet.key.Escape, mudlet.key.Tab, mudlet.key.F1, mudlet.key.A, and so on. The list is a bit long to list out in full so it is available here.

• lua code'

code you'd like the key to run - wrap it in [[ ]].

Returns

• a unique id number for that key.

Examples

keyID = tempKey(mudlet.key.F8, [[echo("hi")]])

anotherKeyID = tempKey(mudlet.keymodifier.Control, mudlet.key.F8, [[echo("hello")]])

-- bind Ctrl+Shift+W:
tempKey(mudlet.keymodifier.Control + mudlet.keymodifier.Shift, mudlet.key.W, [[send("jump")]])

-- delete it if you don't like it anymore
killKey(keyID)

-- tempKey also accepts functions (and thus closures) - which can be an easier way to embed variables and make the code for tempKeys look less messy:

tempKey(mudlet.key.F8, function() echo("Hi\n") end)

tempLineTrigger

tempLineTrigger(from, howMany, code)

Temporary trigger that will fire on n consecutive lines following the current line. This is useful to parse output that is known to arrive in a certain line margin or to delete unwanted output from the game - the trigger does not require any patterns to match on. The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls. The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter.

Parameters

• from: from which line after this one should the trigger activate - 1 will activate right on the next line.
• howMany: how many lines to run for after the trigger has activated.
• code: code to do when the trigger runs - wrap it in [[ ]], or give it a Lua function (since Mudlet 3.5.0).

Example

-- Will fire 3 times with the next line from the game
tempLineTrigger(1, 3, function() print(" trigger matched!") end)

-- Will fire 5 lines after the current line and fire twice on 2 consecutive lines
tempLineTrigger(5, 2, function() print(" trigger matched!") end, 7)

tempPromptTrigger

tempPromptTrigger(code, expireAfter)

Temporary trigger that will match on the games prompt. The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls. The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter.

Note: If the trigger is not working, check that the N: bottom-right has a number. This feature requires telnet Go-Ahead to be enabled in the game.

Available in Mudlet3.6+

Parameters

• code:

code to do when the trigger runs - wrap it in [[ ]], or give it a Lua function.

• expireAfter: (available in Mudlet 3.11+)

Delete trigger after a specified number of matches. You can make a trigger match not count towards expiration by returning true after it fires.

Example

tempPromptTrigger(function()
  echo("hello! this is a prompt!")
end)

-- match only 2 times:
tempPromptTrigger(function()
  echo("hello! this is a prompt!")
end, 2)

-- match only 2 times, unless the prompt is "55 health."
tempPromptTrigger(function()
  if line == "55 health." then return true end
end, 2)

tempRegexTrigger

tempRegexTrigger(regex, code, expireAfter)

Creates a temporary regex trigger that executes the code whenever it matches. The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls. The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter.

Parameters

• regex: regular expression that lines will be matched on.
• code: code to do when the trigger runs - wrap it in [[ ]], or give it a Lua function (since Mudlet 3.5.0).
• expireAfter: Delete trigger after a specified number of matches (since Mudlet 3.11). You can make a trigger match not count towards expiration by returning true after it fires.

Examples

-- create a non-duplicate trigger that matches on any line and calls a function
html5log = html5log or {}
if html5log.trig then killTrigger(html5log.trig) end
html5log.trig = tempRegexTrigger("^", [[html5log.recordline()]])
-- or a simpler variant:
html5log.trig = tempRegexTrigger("^", html5log.recordline)

-- only match 3 times:
tempRegexTrigger("^You prick (.+) twice in rapid succession with", function() echo("Hit "..matches[2].."!\n") end, 3)

-- since Mudlet 4.11+ you can use named capturing groups
tempRegexTrigger("^You see (?<material>\\w+) axe inside chest\\.", function() echo("\nAxe is " .. matches.material) end)

tempTimer

tempTimer(time, code to do[, repeating])

Creates a temporary one-shot timer and returns the timer ID, which you can use with enableTimer(), disableTimer() and killTimer() functions. You can use 2.3 seconds or 0.45 etc. After it has fired, the timer will be deactivated and destroyed, so it will only go off once. Here is a more detailed introduction to tempTimer.

Parameters

• time: The time in seconds for which to set the timer for - you can use decimals here for precision. The timer will go off x given seconds after you make it.
• code to do: The code to do when the timer is up - wrap it in [[ ]], or provide a Lua function.
• repeating: (optional) if true, keep firing the timer over and over until you kill it (available in Mudlet 4.0+).

Examples

-- wait half a second and then run the command
tempTimer(0.5, function() send("kill monster") end)

-- echo between 1 and 5 seconds after creation
tempTimer(math.random(1, 5), function() echo("hi!") end) 

-- or an another example - two ways to 'embed' variable in a code for later:
local name = matches[2]
tempTimer(2, [[send("hello, ]]..name..[[ !")]])
-- or:
tempTimer(2, function()
  send("hello, "..name)
end)

-- create a looping timer
timerid = tempTimer(1, function() display("hello!") end, true)

-- later when you'd like to stop it:
killTimer(timerid)

Note: Double brackets, e.g: [[ ]] can be used to quote strings in Lua. The difference to the usual `" " quote syntax is that `[[ ]] also accepts the character ". Consequently, you don’t have to escape the " character in the above script. The other advantage is that it can be used as a multiline quote, so your script can span several lines.

Note: Lua code that you provide as an argument is compiled from a string value when the timer fires. This means that if you want to pass any parameters by value e.g. you want to make a function call that uses the value of your variable myGold as a parameter you have to do things like this:

tempTimer( 3.8, [[echo("at the time of the tempTimer call I had ]] .. myGold .. [[ gold.")]] )

-- tempTimer also accepts functions (and thus closures) - which can be an easier way to embed variables and make the code for timers look less messy:

local variable = matches[2]
tempTimer(3, function () send("hello, " .. variable) end)

tempTrigger

tempTrigger(substring, code, expireAfter)

Creates a substring trigger that executes the code whenever it matches. The function returns the trigger ID for subsequent enableTrigger(), disableTrigger() and killTrigger() calls. The trigger is temporary in the sense that it won't stay when you close Mudlet, and it will go off multiple times until you disable or destroy it. You can also make it be temporary and self-delete after a number of matches with the expireAfter parameter.

Parameters

• substring: The substring to look for - this means a part of the line. If your provided text matches anywhere within the line from the game, the trigger will go off.
• code: The code to do when the trigger runs - wrap it in [[ ]], or give it a Lua function (since Mudlet 3.5)
• expireAfter: Delete trigger after a specified number of matches (since Mudlet 3.11). You can make a trigger match not count towards expiration by returning true after it fires.

Example:

-- this example will highlight the contents of the "target" variable.
-- it will also delete the previous trigger it made when you call it again, so you're only ever highlighting one name
if id then killTrigger(id) end
id = tempTrigger(target, [[selectString("]] .. target .. [[", 1) fg("gold") resetFormat()]])

-- you can also write the same line as:
id = tempTrigger(target, function() selectString(target, 1) fg("gold") resetFormat() end)

-- or like so if you have a highlightTarget() function somewhere
id = tempTrigger(target, highlightTarget)

-- a simpler trigger to replace "hi" with "bye" whenever you see it
tempTrigger("hi", [[selectString("hi", 1) replace("bye")]])

-- this trigger will go off only 2 times
tempTrigger("hi", function() selectString("hi", 1) replace("bye") end, 2)

-- table to store our trigger IDs in
nameIDs = nameIDs or {}
-- delete any existing triggers we've already got
for _, id in ipairs(nameIDs) do killTrigger(id) end

-- create new ones, avoiding lots of ]] [[ to embed the name
for _, name in ipairs{"Alice", "Ashley", "Aaron"} do
  nameIDs[#nameIDs+1] = tempTrigger(name, function() print(" Found "..name.."!") end)
end

Additional Notes

tempTriggers begin matching on the same line they're created on.

If your code deletes and recreates the tempTrigger, or if you send a matching command again, it's possible to get into an infinite loop.

Make use of the expireAfter parameter, disableTrigger(), or killTrigger() to prevent a loop from forming.