Editing 2445: Checkbox

{{comic
| number    = 2445
| date      = April 1, 2021
| title     = Checkbox
| image     = checkbox.gif
| titletext = Check check check ... chhecck chhecck chhecck ... check check check
}}
{{TOC}} 
*To experience the interactivity of this game, visit the {{xkcd|2445|original comic}}.
==Explanation==
{{incomplete|Created by a CHECKBOX. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}} 
This was the 11th [[:Category:April fools' comics|April fools' comic]] released by [[Randall]]. The previous fools comic was [[2288: Collector's Edition]], which was delayed two days and released on Friday April 3, 2020.

The comic looks similar to a loading screen. The actual comic (this “loading screen”) consists of a gif of a checkbox (hence the name). 

The frame is replaced with an interactive panel. In the center is a check box, which clears itself immediately when checked. In the bottom right is a mute button, which begins muted. By unmuting, sounds are played when the check box is checked. This makes it the first xkcd comic to include sound!

Under the checkbox is a scrolling visual representation of the timing and duration of clicks in the check box, which also produce matching beeping sounds when unmuted. The representation either has a dot for short press or a bar for long press; the length of either is not effected by the length of the actual time the box is pressed, only if it is above the or below the duration that defines if it is a dot or a bar.

By varying between brief and long presses, and brief and long intervals between presses, it is possible to enter characters in Morse Code.

The check box then begins operating by itself, producing sounds which can be decoded as Morse Code. These responses are also printed in the browser's JavaScript console in both plain text and a textual representation of Morse code. If it was left along without any initial input for 30 seconds, it would send the message CQ (meaning "Seek You").

The title text hints at the use of Morse Code in the comic; interpreting the "check" as a Morse Code dot and the "chhecck" (a long check) as a Morse Code dash gives ...---..., which is the Morse Code for "SOS", the international distress signal. Incidentally, inputting the SOS signal gives "YOU TOO?".

For the majority of inputs, the check box responds with a random selection from the following list:
* COME AGAIN
* HUH
* NOT FOLLOWING
* SAY AGAIN
* TRY THAT AGAIN
* WHAT

Some keywords, however, have [[#Special Responses´|special responses]].

This comic has a [[xkcd_Header_text#Unique_header_text|unique header text]], see [[xkcd_Header_text#Checkbox|the details here]]. The header states that "This comic was put together byMax Goodhart, Patrick, Amber, Benjamin Staffin, Kevin Cotrone, and Michael Leuchtenburg. Read Max's [https://chromakode.com/post/checkbox blog post] on development of the comic. 

==Transcript==
:[A small box is in the middle of a large white frame. The box can have a check-mark, but it is alternating between being checked or unchecked. At the bottom right there is a muted speaker (which can be unmuted). If the user press the checkbox gray dots or lines will appear below depending on the length of the press. These will move from right to left and then disappear.]

==Special Responses==
[.s are short presses, -s are long presses, and /s are spaces (just for readability)]

XKCD -> FILE NOT FOUND

XKCD -> A CROSS THREE LETTERS

[-..- -.- -.-. -..]

HI -> HELLO! ANYBODY OUT THERE?

[.... ..]

HELLO -> HELLO TO YOU TOO!

[.... . .-.. .-.. ---]

HELP -> ENTER IMAGE NUMBER
HELP -> YES PLEASE

[.... . .-.. .--.]

WHAT -> ECHO

[.-- .... .- -]

ECHO -> ECHO

[. -.-. .... ---]

CHECK -> MATE

[-.-. .... . -.-. -.-]

CHECKBOX -> RADIO BUTTON (and vice versa)

[-.-. .... . -.-. -.- -... --- -..-]

E (''repeat n times'') -> E (''repeat n times'') (where n < 7. n=6 returns 'AAAAAA' instead)

[.]


T (''repeat n times'') -> T (''repeat n times'') (where n < 7)

[-]

E-> E ''then'' I -> EIEIO

I (''repeat n times'') -> I (''repeat n times'') (where n < 4. n=4 returns 'IV' and n=5 returns 'V', the Roman numerals for 4 and 5, respectively)


FLIPCOIN -> HEADS ''or'' TAILS

[..-. .-.. .. .--. -.-. --- .. -.]

LOOKAROUND -> NOT ENOUGH POWER

[.-.. --- --- -.- / .- .-. --- ..- -. -..]

SEE -> RED SOIL

[... . .]

WHOAREYOU ''or'' WHATISYOUR NAME -> SOJOURNER

[.-- .... --- / .- .-. . / -.-- --- ..-]

SOJOURNER -> CFM (short for Confirm)

[... --- .--- --- ..- .-. -. . .-.]

ET -> PHONE HOME

[. -]

LS -> DID YOU MEAN DIR

DIR -> ENTER IMAGE NUMBER

(any number ≤ 2445) -> (loads xkcd comic in new tab)

MAKEMEASANDWICH -> NOT A CHANCE

[-- .- -.- . / -- . / .- / ... .- -. -.. .-- .. -.-. ….]

SUDOMAKEMEASANDWICH -> NOT POSSIBLE HERE

[... ..- -.. --- / -- .- -.- . / -- . / .- / ... .- -. -.. .-- .. -.-. ....]

ILOVEYOU -> LESSTHANTHREE (''&lt;3'')

[.. / .-.. --- ...- . / -.-- --- ..-]

<nowiki />:) -> :D

[---... -.--.-]

<nowiki />:( -> :C

[---... -.--.]

<nowiki />;) -> :O

[-.-.-. -.--.-]

<nowiki />:O -> :X

[---... ---]

UWU -> OWO

[..- .-- ..-]

OWO -> UWU

[--- .-- ---]

POG -> YEET

[.--. --- --.]

UNIX -> (''Opens [https://uni.xkcd.com uni.xkcd.com]'')

[..- -. .. -..-]

GETYEFLASK -> YE WISH! IF THERE WAS A FLASK IN THIS GAME, WE'D KNOW ABOUT IT.

GETYEFLASK -> YOU CANNOT GET YE FLASK

[--. . - / -.-- . / ..-. .-.. .- ... -.-]

YO -> YO

[-.-- ---]

DROPTABLE -> HAHA NO

[.... .- .... .- / -. ---]

WHY -> TO STUDY THE RED PLANET

[.-- .... -.--]

EAT -> I PHOTOSYNTHESIZE

[. .- -]

BATTLE ''or'' FIGHT -> THROW

[-... .- - - .-.. .]

START -> DID YOU MEAN START GAME?

[... - .- .-. -]

STARTGAME -> CHECK BACK LATER

[... - .- .-. - --. .- -- .]

===Controls===

QUIET -> (turns the volume off)

[--.- ..- .. . -]

MUTE -> (turns the volume off)

[-- ..- - .]

BEEP -> (turns the volume on)

[-... . . .--.]

(see also QRS and QRQ)

===Q codes and radio shorthand===
An explanation of Q codes can be found {{w|Q code|here}}.

CQ -> CQD DE SOJ

[-.-. --.-]

SOS -> YOU TOO?

SOS -> OH NO

[... --- ...]

QRS -> (reduces playback speed)

[--.- .-. ...]

QRQ -> (increases playback speed)

[--.- .-. --.-]

QRA -> QRA SOJOURNER

[--.- .-. .-]

QRB -> QRB 264 MILLION KM

[--.- .-. -…]

QRH -> QRH 0.652 METERS

[--.- .-. ....]

QRG -> QRG PATHFINDER

[--.- .-. --.]

QRZ -> QRZ SOJOURNER

[--.- .-. --..]

QRT -> PLEASE DON'T GO

[--.- .-. -]

QTH -> QTH ARES VALLIS

[--.- - ....]

QSL -> QSL

[--.- ... .-..]

73 -> 73 KN

===FORTUNE===

F -> DID YOU MEAN FORTUNE

[..-.]

FORTUNE -> OPEN ME

[..-. --- .-. - ..- -. .]

OPEN -> ''returns one of the following fortunes''

[--- .--. . -.]

* NEVER FEAR THE END OF SOMETHING MARKS THE START OF SOMETHING NEW
* YOUR DREAMS ARE NEVER SILLY DEPEND ON THEM TO GUIDE YOU
* YOU WILL BE A GREAT SUCCESS BOTH IN THE BUSINESS WORLD AND SOCIETY
* CHANGE IS HAPPENING IN YOUR LIFE SO GO WITH THE FLOW
* YOUR MOODS SIGNAL A PERIOD OF CHANGE
* YOUR MENTALITY IS ALERT PRACTICAL AND ANALYTICAL
* YOU SHOULD PAY FOR THIS CHECK BE GENEROUS
* EVERYWHERE YOU CHOOSE TO GO FRIENDLY FACES WILL GREET YOU
* DILIGENCE AND MODESTY CAN RAISE YOUR SOCIAL STATUS
* MANS MIND ONCE STRETCHED BY A NEW IDEA NEVER REGAINS ITS ORIGINAL DIMENSIONS
* YOU ARE GENEROUS TO AN EXTREME AND ALWAYS THINK OF THE OTHER FELLOW
* FOR THE THINGS WE HAVE TO LEARN BEFORE WE CAN DO THEM WE LEARN BY DOING THEM
* YOUR INFINITE CAPACITY FOR PATIENCE WILL BE REWARDED SOONER OR LATER
* A BEAUTIFUL SMART AND LOVING PERSON WILL BE COMING INTO YOUR LIFE
* LIKE THE RIVER FLOW INTO THE SEA SOMETHING ARE JUST MEANT TO BE
* MEDITATION WITH AN OLD ENEMY IS ADVISED
* COURTESY BEGINS IN THE HOME
* YOU HAVE AN UNUSUAL EQUIPMENT FOR SUCCESS USE IT PROPERLY
* PERHAPS YOUVE BEEN FOCUSING TOO MUCH ON SAVING

OPEN -> HUH (if after something other than "FORTUNE")

===ENCABULATOR===

STATUS -> RADIO ONLINE, MOTOR ONLINE, UNILATERAL PHASE DETRACTOR UNPOWERED, CARDINAL GRAMMETER UNSYNCHRONIZED

[... - .- - ..- ...]

YOUTUBE -> RXJKDH1KZ0W     ''(Note: video ID for [https://youtu.be/RXJKdh1KZ0w Rockwell Retro Encabulator])''

[-.-- --- ..- - ..- -... .]


REPAIR, ENCABULATOR, FIX, ''or'' SYSTEM  -> ENTERING ENCABULATOR RECOVERY SYSTEM. OPTIONS 1 INITIATE SIDE FUMBLING 2 ALIGN SPURVING BEARINGS 3 REVERSE TREMIE PIPE

[.-. . .--. .- .. .-.]

* 1 -> SIDE FUMBLING DETECTED. MODIAL INTERACTION UNSTABLE. RECOVERY TERMINATED.
* 2 -> MODIAL INTERACTION INITIATED. OPTIONS 1 UNWIND LOTUS O DELTOID 2 INCREASE DEPLENERATION 3 CONNECT GIRDLESPRING ON DOWN END OF GRAMMETER 4 CONNECT SEVENTH CONDUCTOR TO GIRDLESPRING
** 1 -> SIDE FUMBLING DETECTED. MODIAL INTERACTION UNSTABLE. RECOVERY TERMINATED.
** 2 -> DEPLENERATION PREVENTED BY DINGLE ARM
** 3 -> SIDE FUMBLING DETECTED. MODIAL INTERACTION UNSTABLE. RECOVERY TERMINATED.
** 4 -> PANAMETRIC FAN ACTIVATED. MODIAL INTERACTION STABLE. DEFAULT CONFIGURATION MISSING. MANUALLY ENTER MARZELVANE TYPE TO COMPLETE RECOVERY
*** HYDROCOPTIC -> RECOVERY SUCCESSFUL. REBOOT Y N?
**** Y -> //SOJOURNER_REPAIRED.PNG (''Opens [https://imgs.xkcd.com/comics/sojourner_repaired.png sojourner_repaired.png]'')
* 3 -> ERROR TREMIE PIPE NONREVERSIBLE

===MAZE===
RETURN -> DID YOU MEAN ENTER

ENTER -> DID YOU MEAN ENTERMAZE

ENTER MAZE -> AN EMPTY ROOM

[. -. - . .-. / -- .- --.. .]

* LOOK -> AN EMPTY ROOM
* HELP -> NORTH EAST SOUTH WEST GET
* EXIT -> CFM (''Exits the maze'')

{| class="wikitable"
|+ Maze
|-
|an open flame || a candle on a table || style="background-color: black;" |
|-
| style="background-color: black;" | || an empty room (start) || style="background-color: black;" |
|-
| style="background-color: black;" | || a hanging bell || an open book on a table (locked door)
|- 
|}

Steps to complete (directions can be abbreviated as their first letter):
# NORTH
# GET CANDLE -> TAKEN
# WEST
# LIGHT CANDLE
# EAST
# SOUTH
# SOUTH
# RING BELL -> A DOOR OPENS
# EAST
# CLOSE BOOK -> CONGRATULATIONS YOU ESCAPE

===CROSSWORD===
CROSSWORD -> NUMBERANDDIRECTION (starts a crossword, you can ask for hints like "1 down" or "2 across")

Appears to be today's (2021-04-01) New York Times Crossword: https://rexwordpuzzle.blogspot.com/2021/04/libertarian-politico-johnson-thu-4-1-21.html

{| class="wikitable"
|+Solved Crossword
|-
| m || y || g || o || d || style="background-color: black; | || d || e || v || style="background-color: black; | || style="background-color: black; | || style="background-color: black; | || e || l || f
|-
| b || u || o || n || o || style="background-color: black; | || e || y || e || s || style="background-color: black; | || s || l || u || r
|-
| a || m || o || c || o || style="background-color: black; | || c || r || a || p || style="background-color: black; | || l || m || a || o
|-
| style="background-color: black; | || style="background-color: black; | || v || e || r || y || r || e || l || i || g || i || o || u || s
|-
| s || e || e || style="background-color: black; | || m || u || y || style="background-color: black; | || style="background-color: black; | || r || a || m || style="background-color: black; | || style="background-color: black; | || style="background-color: black; |
|-
| h || a || r || h || a || r || style="background-color: black; | || s || c || a || r || e || d || o || f
|-
| e || s || s || e || n || t || i || a || l || l || y || style="background-color: black; | || a || r || i
|-
| b || t || e || n || style="background-color: black; | || style="background-color: black; | || m || m || i || style="background-color: black; | || style="background-color: black; | || t || v || a || d
|-
| o || l || a || style="background-color: black; | || b || a || d || m || o || u || t || h || i || n || g
|-
| p || a || s || s || e || d || b || y || style="background-color: black; | || n || o || o || d || g || e
|-
| style="background-color: black; | || style="background-color: black; | || style="background-color: black; | || o || a || r || style="background-color: black; | || style="background-color: black; | || s || u || n || style="background-color: black; | || l || e || t
|-
| b || l || e || n || d || e || d || f || a || m || i || l || y || style="background-color: black; | || style="background-color: black; |
|-
| b || o || r || g || style="background-color: black; | || p || e || l || t || style="background-color: black; | || g || e || n || r || e
|-
| q || u || i || z || style="background-color: black; | || s || p || a || y || style="background-color: black; | || h || i || c || k || s
|-
| s || t || e || style="background-color: black; | || style="background-color: black; | || style="background-color: black; | || p || b || r || style="background-color: black; | || t || a || h || o || e
|}

{| class="wikitable mw-collapsible mw-collapsed"
|+ Words
! index !! down word !! across word
|-
| 1 || MBA || MYGOD
|-
| 2 || YUM || 
|-
| 3 || GOOVERSEAS || 
|-
| 4 || ONCE || 
|-
| 5 || DOORMAN || 
|-
| 6 || DECRY || DEV
|-
| 7 || EYRE || 
|-
| 8 || VEAL || 
|-
| 9 || ELMO || ELF
|-
| 10 || LUAU || 
|-
| 11 || FROS || 
|-
| 12 ||  || BUONO
|-
| 13 ||  || EYES
|-
| 14 || SPIRAL || 
|-
| 15 || SLIME || SLUR
|-
| 16 ||  || AMOCO
|-
| 17 ||  || CRAP
|-
| 18 ||  || LMAO
|-
| 19 ||  || VERYRELIGIOUS
|-
| 20 || YURT || 
|-
| 21 || GARY || 
|-
| 22 || SHEBOP || SEE
|-
| 23 || EASTLA || 
|-
| 24 ||  || MUY
|-
| 25 ||  || RAM
|-
| 26 ||  || HARHAR
|-
| 27 || HEN || 
|-
| 28 || SAMMY || SCAREDOF
|-
| 29 || CLIO || 
|-
| 30 || DAVIDLYNCH || 
|-
| 31 || ORANGE || 
|-
| 32 || FIDGET || 
|-
| 33 ||  || ESSENTIALLY
|-
| 34 || IMDB || 
|-
| 35 ||  || ARI
|-
| 36 ||  || BTEN
|-
| 37 ||  || MMI
|-
| 38 || THO || TVAD
|-
| 39 ||  || OLA
|-
| 40 || BEAD || BADMOUTHING
|-
| 41 || ADREPS || 
|-
| 42 || UNUM || 
|-
| 43 || TONIGHT || 
|-
| 44 ||  || PASSEDBY
|-
| 45 || SONGZ || 
|-
| 46 ||  || NOODGE
|-
| 47 ||  || OAR
|-
| 48 || SATYR || SUN
|-
| 49 ||  || LET
|-
| 50 || BBQS || BLENDEDFAMILY
|-
| 51 || LOUT || 
|-
| 52 || ERIE || 
|-
| 53 || DEPP || 
|-
| 54 || FLAB || 
|-
| 55 || LEIA || 
|-
| 56 ||  || BORG
|-
| 57 ||  || PELT
|-
| 58 ||  || GENRE
|-
| 59 || RKO || 
|-
| 60 || ESE || 
|-
| 61 ||  || QUIZ
|-
| 62 ||  || SPAY
|-
| 63 ||  || HICKS
|-
| 64 ||  || STE
|-
| 65 ||  || PBR
|-
| 66 ||  || TAHOE
|}

===Rover Scene===
After successfully repairing and rebooting Sojourner, a comic is opened which depicts it seeking out and finding its friends, Spirit, Opportunity, Curiosity, Perseverance, and Ingenuity. Curiosity and Perseverance are locked in a swordfight, and either Spirit or Opportunity is carried off by Ingenuity while the other speeds off a small mound of dirt.

==Special Console Commands==
The page's JavaScript creates a global object <code>morse</code> with <code>encode</code> and <code>decode</code> methods.  From the developer console, it is possible to write  <code>morse.encode("A PHRASE")</code>, which will print the Morse code corresponding to the text provided, or <code>morse.decode("... --- ...")</code> which will translate the Morse code to text.

<code>BeepComic.hurryUp()</code> to get the reply immediately in the console.
<code>BeepComic.send(...)</code> to send directly to SOJOURNER.

{{comic discussion}}

[[Category:Interactive comics]]
[[Category:Comics with animation]]
[[Category:Dynamic comics]]
[[Category:April fools' comics]]