Editing 1975: Right Click

{{comic
| number    = 1975
| date      = April 1, 2018
| title     = Right Click
| image     = right_click.png
| titletext = Right-click or long press (where supported) to save!
}}
*'''NOTE:''' The above is what is seen when viewing the comic on xkcd. 
**But it is just the stating point of an interactive comic experience, which begins when you ''Right Click'' the comic.<br>
**To experience the interactive content, click [https://www.xkcd.com/1975/ here].
**See an example of what happens in the [[#Trivia|Trivia section]] below.

==Explanation==
{{incomplete|Please add an explanation table of all functions This is an April Fools comic, so it'll take a while to get organized and much longer to fill out. Do NOT delete this tag too soon.}}

This was the eighth [[:Category:April fools' comics|April fools' comic]] released by [[Randall]]. The previous fools comic was not from the year before as there was no such comic [[1818:_Rayleigh_Scattering#No_April_Fools.27_Day_comic_in_2017|released in 2017]]. Instead the previous one was [[1663: Garden]], scheduled for released Friday April 1st 2016, but in the end released on [[1663:_Garden#Monday_4th_of_April_release|Monday April 4th]] 2016. 

It will thus be interesting to see if 2019 will be  year with or without an April Fools' Day comic. It falls on a Monday so on a scheduled release day. However, this does not necessarily mean anything, because this year Randall once again moved the release day, from Monday April 2nd to Sunday April 1st. This comic thus replaced the Monday release, the second time this happens due to April 1st, last time was back in 2012 with [[1037: Umwelt]], the first time Randall made such comics in consecutive years. That streak ended after 6 comics in 2017, but a new streak may have started now.

At first the comic seems like the most simplistic xkcd comic possible - [[Cueball]] standing and doing nothing. The "editor's note" tells you to save a copy of the image to "view the full comic".

To save an image from a browser most people would right click on it (or long click in mobile devices) which normally leads to a "context menu" allowing several actions related to the image, including saving/downloading. This is what you are encouraged to do by the editorial note as well as by the comic name and title text. However the context menu opened is not the default context menu of the browser but an elaborate context menu containing many nonsensical options.

At first it also seems impossible to save the image using that menu. However after exploring the context menu you can find an "easter egg" in one of two different places (see below) which unlocks the save option. This save option gives you a different [https://xkcd.com/1975/v6xso1_right_click_save.png image] than the one you see, which can be thought of as "the full comic" although the meat of the comic is actually in the interactive context menu itself. Note that "cheating" by disabling JavaScript and other methods that allow you to directly save the image won't get you that "full comic" image.

This comic pokes fun at how hard it can be to save an image or to just navigate context menus in some computer programs. The "easter egg hunt" might be related to the fact the comic was released during easter (which fell on April fool's in 2018). It might also be related to the movie "Ready Player One" which was recently released when the comic was released. In the movie, based on the book by Cline, finding an "easter egg" in a VR world was a central plot point.

The title is reminiscent of one of the first interactive comics [[1110: Click and Drag]], where the title explains what the user should do to experience it. However, that was not a fools' day comic!

The comic uses {{w|JavaScript}} and {{w|HTML5}} to override the standard context menu. Since modern browsers use the same features to integrate Add-ons into that menu, the behavior may be different depending on the browser environment.  Browsers with JavaScript disabled, either totally or by using {{w|NoScript}}, won't access the functionality of the comic, but of course can easily save the image (not "the full version" but the image that is seen initialy).

The manipulated context menu is described [[#Context menu|below]].

==Context menu== 

===Main Context Menu===
{| border =1 width=100% cellpadding=5 class="wikitable"
! # !! Menu Item !! Explanation !! Sub-Menu Items
|-
!1
| '''Save'''
| Only appears after successfully completing the ADVENT.EXE game or getting the Easter egg in Mornington Crescent.
| Save image> Downloads this image. [https://xkcd.com/1975/v6xso1_right_click_save.png]. The image includes a spheroid object near the top right-hand corner which appears to exhibit red shift and green shift, suggesting that it is rotating rapidly.

|-
! 2 
| '''File''' 
| Normal submenu 
|Close: Closes menu, does nothing.
Open: A:\, C:\, / (See more [[#Filesystems Menu|below]])

Find: Where, When, How, (grayed out) What, (grayed out) Why, Who. 

'Where' leads to four options. The first, 'computer', has two options ('folder' and 'menus'), which link back to the 'find' and right-click menus, respectively. "Narnia" leads to a link to the comic [[665: Prudence]] as well as to a grey comment about how it's weird that "they" have to die to go back to Narnia.
"Canada" and "America" lead to the same set of bizarre menus (America leads into Canada's menu), which then give the options 'Upper' and 'Lower', ultimately leading to a drive-through and hockey, respectively.

'When' leads to a description of Siri entering someone's home, and the menu can be followed to reveal several further events from 'earlier' in the day. The last one ('a  bottle of jack and a toothbrush') is likely a reference to the song 'Tik Tok' by Kesha.

'How' simply leads to an exclamation of 'How!?'.

'What' is grayed out.

'Why' links to [http://itisamystery.com/], ''technically'' answering the question of "Why?"

'Who' leads to a menu version of the Abbot and Costello "Who's on First?" routine, which eventually links to a [https://www.youtube.com/watch?v=kTcRRaXV-fg&feature=youtu.be youtube video] of the routine. As of April 4th, a second submenu has been added, which contains Slappy and Skippy's "Who's on Stage?" parody of the previous routine, which also eventually leads to its [https://www.youtube.com/watch?v=Mdqv5xIsFLM youtube video].

Backup: Causes the area around the comic to flash red 9 times, with high-pitch sounds reminiscent of a truck backing up. Reminiscent of the Sinclair Spectrum SAVE to tape command, which would flash the border and modulate the speaker.

Save: Only available after the save menu is unlocked after one of the two Easter Eggs is found, allows download of bonus comic, same as clicking on save->save image from the main menu.

|-
! 3 
| '''Edit''' 
| Enables a mode allowing the user to draw on the webpage.  Pressing Esc asks "Aw, that looks nice though. Really delete?" and the page returns to normal if OK is clicked.
| None
|-
! 4 
| '''System''' 
| Normal submenu 
|Shut Down> Changes the only menu option to "Power on", then once that is used, system returns to normal.

/ (See [[#Table - Filesystems Menu|below]])
|-
! 5 
| '''View''' 
| Normal submenu 
|Cascade>Links to [http://wiki.xkcd.com/geohashing/Mt._St._Helens,_Washington]

Tile> Links to [[245: Floor Tiles]]

Minimize> Changes pointer to a smaller pointer.

Full Screen> Enters full screen.
|-
! 6 
| '''Utilities''' 
| Normal submenu 
|Park drives> Nothing.

Check space usage> (cannot click) Space usage: -Dark matter -Hydrogen -Helium -Scattered clumps of heavier elements -Stars -Rocks -Some space probes -Earth

Spell check> English (links to [[1069: Alphabet]]) and Colors (links to [https://blog.xkcd.com/2010/05/03/color-survey-results/])

Train AI> links to [[1838: Machine Learning]]

Identify song> opens a long word-by-word menu for song lyrics; it's actually a menu-ised version of [[851: Na]].

Advanced> several Unix commands, all absurd (or dangerous) for some reason:
* <code>apt-get install /dev/null</code>: <code>apt-get</code> is the standard package manager used in Debian-derived Linux distributions (including Ubuntu); it is normally used to install software; <code>/dev/null</code> is the "bit-bucket" device on any Unix system, which can be used as a dummy output file to discard output or as a dummy empty input file. This command would attempt to install <code>/dev/null</code> (which is a device, not a package!) or, more correctly, would try to install a package reading its data from <code>/dev/null</code> (if <code>apt-get</code> is given a file name it tries to interpret it as a .deb package), which is obviously impossible.
* <code>brew install apt-get</code>: <code>brew</code> is a third-party package manager for macOS; it is generally used to install "missing" open-source utilities on a macOS system; the command is attempting to install the aforementioned <code>apt-get</code>, which is both impossible (<code>apt-get</code> doesn't run on macOS) and hilariously recursive (did you install a package manager - brew - to install another one?). Even if this were possible, the package would have been called <code>apt</code>, as apt-get is only one of the commands in the package manager.
* <code>/usr/local/bin/wine xen-hypervisor.exe</code>: <code>wine</code> is a compatibility layer used to run Windows executables on Linux (and on macOS); the fact that it is in <code>/usr/local</code> hints that it has been manually compiled on this machine; Xen is a Linux-based hypervisor, i.e. a software used to run and manage virtual machines over a Linux host, but the .exe suffix here hints that it is a Windows executable. The command would try to launch a Windows build of a Linux-based virtual machine manager on a Unix machine through a Windows emulation layer (wine).
* <code>source .bash_history</code>: the <code>source</code> shell command reads the file that is given as argument and executes each of its rows as a command in the current shell, roughly as if you typed them in; <code>.bash_history</code> (located in the user home directory) is the file where the bash shell saves the history of the commands that have been run. This command would re-run all the command that have been typed in the shell.
* <code>rm -rf $DIRECTROY/*</code>: <code>rm -rf</code> deletes recursively and forcefully the paths it is given as arguments; <code>$DIRECTROY</code> is a shell variable, probably containing some directory that whoever typed in this command wanted to clean; however, it is misspelled (it says <code>$DIRECTROY</code>, not <code>$DIRECTORY</code>), and, due to how POSIX shell work, it is thus expanded to an empty string; so, the command becomes <code>rm -rf /*</code>, which deletes all the files and directories in the root of the disk, effectively killing the system instead of just deleting the content of some directory. Notice that this particular misspell manages to circumvent the builtin protection of many <code>rm</code> versions, which refuse to do a plain <code>rm -rf /</code>, as <code>/*</code> gets expanded by the shell, so <code>rm</code> never has the chance to see explicitly that you are killing all the data in the root directory.
* <code>:(){:|:&};:</code>: this is [https://askubuntu.com/q/159491/208527 a classic shell fork bomb], i.e. a small program that keeps launching copies of itself, until all resources have been exhausted or the user somehow manages to kill all its copies.
* <code>echo "source .bashrc" >> .bashrc</code>: <code>.bashrc</code> is a file that gets executed whenever the <code>bash</code> shell is started in interactive mode; this command appends the string <code>source .bashrc</code> to it, which effectively executes it again recursively; this would pretty much make it impossible to open an interactive shell when launching it with the default parameters.
* <code>alias gcc=php</code>: the <code>alias</code> shell builtin create an alias for another command; <code>gcc</code> is the GNU C compiler driver, which is used to compile programs written in the C language; <code>php</code> is the command-line interpreter for the PHP language. This line creates an alias such that when typing <code>gcc</code>, <code>php</code> is actually invoked, which would generate completely absurd error messages. This is doubly devious, as PHP isn't generally held in high esteem by large part of the programming community (especially by someone writing stuff in C).

'); DROP TABLE Menus;-- links to [[327: Exploits of a Mom]]
|-
! 7 
| '''Games''' 
| Normal submenu 
| Twenty Questions> A Twenty Questions interface that gets really confusing. There are links to Bing image searches for '[https://www.bing.com/images/search?q=okapi&FORM=HDRSC2 okapi]', '[https://www.bing.com/images/search?q=pronghorn&FORM=HDRSC2 pronghorn]', '[https://www.bing.com/images/search?q=eland&FORM=HDRSC2 eland]', '[https://www.bing.com/images/search?q=baribusa&FORM=HDRSC2 baribusa]', '[https://www.bing.com/images/search?q=musk%20deer&FORM=HDRSC2 musk deer]' and '[https://www.bing.com/images/search?q=ibex&FORM=HDRSC2 ibex]'.  The game also contains some extremely large cans of creamed corn (a reference to [[1807: Listening]]).

Rock Paper Scissors> A Rock Paper Scissors game where the computer always matches your move. If you go long enough, the Defect option is added, a reference to the [https://en.wikipedia.org/wiki/Prisoner%27s_dilemma Prisoner's Dilemma].

D&D> An inteface which allows you to "cast" over 300 spells from D&D 5e. Several menus are used to filter the spells based on their traits: class which can learn the spell, the school of the spell, spell level and components required to perform it (somatic, vocal, material). The traits can be chosen in any order. After all six traits are chosen a submenu opens with all of the spells that match those exact traits (which might be no spells at all).

Most spells link to various pages, including xkcd comics (e.g. [[1331: Frequency]]), what-ifs (e.g. {{what if|144|Saliva Pool}}) and other external sites (e.g. [https://www.nasa.gov/sun The Sun | NASA]). Some spells create effects that change the comic page temporarily or permanently, and some open submenus from different parts of the context menu.

See [https://www.reddit.com/r/dndnext/comments/88vwoe/xkcds_latest_comic_has_a_dd_easter_egg/ post on /r/dndnext] for all links and effects.

ADVENT.EXE> A text-based game. If played correctly, you can win, unlocking 'Save'>'Save image' from the beginning menu, which links to [https://xkcd.com/1975/v6xso1_right_click_save.png]. 'ADVENT.EXE>Castle>Well>Wish for...' has links to comics [[572: Together]], [[1053: Ten Thousand]], [[152: Hamster Ball]], [[1196: Subways]], [[231: Cat Proximity]] and to what-if articles {{what if|111|All the Money}} and {{what if|9|Soul Mates}}. The C-remover is a reference to either the T-remover from [https://en.wikipedia.org/wiki/Leather_Goddesses_of_Phobos Leather Goddess of Phobos] or the multi-letter remover from [http://emshort.com/counterfeit_monkey/ Counterfeit Monkey], a text adventure by Emily Short inspired by it. At one point in the maze, the options to travel are N, S, and Dennis instead of the usual N, E, S, W; this is a reference to the text-based game [http://www.hrwiki.org/wiki/Thy_Dungeonman Thy Dungeonman] found in a Strong Bad email from [http://homestarrunner.com homestarrunner.com].

Hoverboard> Links to [[1608: Hoverboard]] browser game.

Mornington Crescent> This is a simulation of the well-known game {{W|Mornington_Crescent_(game)|Mornington Crescent}}, which bears a surprising resemblance to {{W|London_Underground|London's Underground}} railway network. Players name a station, in turn, endeavouring to reach Mornington Crescent. The rules of play are very complicated and beyond the scope of this article; interested persons are referred to ''N. F. Stovold’s Mornington Crescent: Rules and Origins'' (sadly out of print). In this variation, one may reach 'Vauxhall'>'Easter basket'>'Take egg', also allowing you to save.  The shortest path to the Easter basket is: Euston / Warren Street / Oxford Circus / Green Park / Victoria / Pimlico / Vauxhall / Easter basket

All playable stations are immediately adjacent on the London Underground network to the station last played. Despite the fact that this version of the game starts at Euston, which is adjacent to Mornington Crescent, the branch of the {{W|Northern_line|Northern line}} on which the {{W|Mornington_Crescent_tube_station|eponymous station}} is situated does not appear in the game.
|-
! 8 
| '''Help''' 
| Contains various submenus, all of which, barring Credits, loop back recursively to this menu:
|Tutorial
Support

Manual

Troubleshooting

FAQ

Guide

Q&A

User forums

--------------

Credits> 'Some people who helped with this comic: 
[http://chromakode.com/ @chromakode] 
[https://twitter.com/aiiane Amber] 
[https://twitter.com/fadinginterest @fadinginterest] 
[https://twitter.com/wirehead2501 Kat] 
[https://twitter.com/cotrone Kevin] 
[http://90d.ca/ Stereo]'
|-
! 9
| '''Do Crimes'''
| Contains several "crimes" that can be committed. This option is unlocked by File > Open > C:\ (or /home/user) > Bookmarks/ > Secret > Enable Dark Web.
This is a joke about how the dark web is perceived in popular culture - a place that exists solely to do crimes, mainly bitcoin and hacking related.
| Steal Bitcoins > Grayed out.
Say swears > Several clean swears that all link to [[771: Period Speech]].

Hack > Three sub-options that link to various related comics. (Gibson: Nothing. Election: [[1019: First Post]]. Planet: [[1337: Hack]].)

Forge a Scrabble Tile > Several sub-options that don't do anything. (U, Z, <this menu option intentionally left blank>, and two special characters, one being a Russian 'Э', as low-pitched [eh], and the second being a crossed swords emoji (⚔)
|}


====Filesystems Menu====

{| border =1 width=100% cellpadding=5 class="wikitable"
! Drive !! Menu Item !! Explanation !! Sub-Menu Items
|-
! A:\ 
| '''Insert''' 
| Only appears before inserting a floppy disk.
|Floppy disk> Unlocks other options for drive A:\, which are identical to drive C:\
Chip card> A long sequence of being told 'Please wait. Authorizing...' ending in 'Chip error! REMOVE CARD NOW!'
|-
! C:\ 
| '''Documents/'''
| Nothing.
| None.
|-
! C:\
| '''Music/'''
| Leads to a long string of prompts for song lyrics. 'Hey now / Hey now na now / Sing "This Corrosion" to me' inverts the webpage's color before Easter egg mode is enabled, and plays the referenced song in the browser with inverted color and flashing if the Easter egg mode is enabled. It's actually the same menu that is shown under Utilities>Identify song (which itself is a menu-ised version of [[851: Na]]). 
| 'Hey now / Hey now / Don't dream it's over' links to [[240: Dream Girl]]. 'This / is / a / story all about how / my life got flipped, turned upside down' links to [[464: RBA]]. 'This / is / the / story of a girl / who cried a river and drowned the whole world' links to a Youtube video: https://www.youtube.com/watch?v=8_FVAEYRM5I
|-
! C:\
| '''Bookmarks/'''
| Similar to Music/, Bookmarks/> Comics leads to a chain from which many comics are titled and linked. Probably all comics actually. For instance he thus here recognizes his first April Fools' comic [[404: Not Found]], which cannot be found, as a real comic by linking to it. Bookmarks/> Secret> Enable Dark Web adds the 'Dark Web' option to the initial menu.
|-
! C:\
| '''Games/'''
| Same as 'Games' from the initial menu.
|-
! C:\
| '''Sequences/'''
| The options are the lines from a ''Tim and Eric'' sketch [http://knowyourmeme.com/memes/celery-man Celery Man]; the final option links to a YouTube video of the sketch.
| After several single-option menus, it links to this Youtube video. https://www.youtube.com/watch?v=MHWBEK8w_YY
|-
! /
| '''home/'''
| Nothing.
| guest> links to http://uni.xkcd.com/ - a command line unix-style interface for viewing xkcd comics (and other commands to discover) that was used as the April Fool's joke in 2010. See also [[UniXKCD]].

user> Same files as C:\

root> Displays 'You are not in the sudoers file. This incident will be reported.' Which is what the sudo command will print if unauthorised users try to use it.
|-
! /
| '''opt/'''
| Does nothing.
| None.
|-
! /
| '''sbin/'''
| Does nothing.
| None.
|-
! /
| '''usr/'''
| Opens an infinite sequence of options, each similar to the last, but replacing the previous selection with another folder; probably a reference to the fact that [https://www.tldp.org/LDP/Linux-Filesystem-Hierarchy/html/usr.html the /usr hierarchy] does contain a list of subdirectories pretty much identical [https://www.tldp.org/LDP/Linux-Filesystem-Hierarchy/html/the-root-directory.html to those of the root directory]. /usr/local, too is a duplicate of /usr for files not originating with the distro, and of late /var and /opt have also started expanding.
|-
! /
| '''dev/'''
| Nothing.
|random/> links to a random xkcd comic. In unix systems reading from the /dev/random file generates pseudorandom bytes, so it fits here that /dev/random gives a random comic.
urandom/> links to [[221: Random Number]]. In unix systems, /dev/urandom is supposed to function as a "closer to truly random" alternative to /dev/random, to be used in systems where good randomness is important such as cryptographic systems. The linked comic describes a botched attempt to create a function that would return a truly random number (and thus would be useful as a source of randomness for /dev/urandom) but actually it returns a fixed number (and thus isn't useful at all). The fact that link always reaches the same comic (contrasted with /dev/random that gives a different comic each time) might also relate to the "truly random" function from the comic.
|}

==Transcript==
:[Empty frame with Cueball standing slightly right of center.]

:[Caption below the frame:]
:Editor's Note: Today's comic is optimized for local viewing. To see the full version, just save a copy of the image!


==Trivia==
*Here is an example of how the game looks when entered:
[[File:1975_Right_Click_Systems_menu.png]]


{{comic discussion}}

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[[Category:Interactive comics]]
[[Category:April fools' comics]]
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[[Category:Multiple Cueballs]]
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