+ #:goes-by '("hard drive" "drive" "hard disk"))
+ ('computer-room:computer
+ <computer> 'computer-room
+ #:name "the computer"
+ #:desc '((p "It's a coat closet sized computer labeled \"PDP-11.5\". ")
+ (p "The computer is itself turned on, and it looks like it is "
+ "all set up for you to run a program on it."))
+ #:goes-by '("computer"))
+ ('computer-room:floor-panel
+ <floor-panel> 'computer-room
+ #:name "a floor panel"
+ #:desc (wrap-apply floor-panel-desc)
+ #:invisible? #t
+ #:goes-by '("floor panel" "panel"))))
+
+\f
+;;; * UNDERGROUND SECTION OF THE GAME! *
+
+\f
+;;; The lab
+
+(define underground-map-text
+ "\
+ _______ |
+ .-' @ '-. \\ ?????
+ .' '. .\\
+ | [8sync Hive] |======' '-_____
+ ', M ,'
+ '. @ .'
+ \\ @ /
+ '-__+__-'
+ '. @ .'
+ .--------------. \\ /
+ | [Guile Async | .-------+------.
+ | Museum] | | [Lab] #!#| .-------------.
+ | @| | MM | |[Federation |
+ | & ^ +##+@ || < +##| Station]|
+ | | | @ | | |
+ | & # | |*You-Are-Here*| '-------------'
+ | # ^ | #+-------+------'
+ '-------+------' # #
+ # # #
+ # # .-----------.
+ .-+----. # |# F |
+ |@?+%? +#### | ^ f## |
+ '------' | f f %|
+ |F [Mudsync |
+ | $ Swamp] |
+ '-----------'")
+
+(define 8sync-design-goals
+ '(ul (li (b "Actor based, shared nothing environment: ")
+ "Shared resources are hard to control and result in fighting
+deadlocks, etc. Escape the drudgery: only one actor controls a resource,
+and they only receive one message at a time (though they can \"juggle\"
+messages).")
+ (li (b "Live hackable: ")
+ "It's hard to plan out a concurrent system; the right structure
+is often found by evolving the system while it runs. Make it easy to
+build, shape, and change a running system, as well as observe and correct
+errors.")
+ (li (b "No callback hell: ")
+ "Just because you're calling out to some other asynchronous
+code doesn't mean you should need to chop up your program into a bunch of bits.
+Clever use of delimited continuations makes it easy.")))
+
+(define underground-lab
+ (lol
+ ('underground-lab
+ <room> #f
+ #:name "Underground laboratory"
+ #:desc '((p "This appears to be some sort of underground laboratory."
+ "There is a spiral staircase here leading upwards, where "
+ "it seems much brighter.")
+ (p "There are a number of doors leading in different directions:
+north, south, east, and west, as well as a revolving door to the southwest.
+It looks like it could be easy to get lost, but luckily there
+is a map detailing the layout of the underground structure."))
+ #:exits
+ (list (make <exit>
+ #:name "up"
+ #:to 'computer-room
+ #:traverse-check
+ (lambda (exit room whos-exiting)
+ (values #t "You climb the spiral staircase.")))
+ (make <exit>
+ #:name "west"
+ #:to 'async-museum
+ #:traverse-check
+ (lambda (exit room whos-exiting)
+ (values #t '("You head west through a fancy-looking entrance. "
+ "A security guard steps aside for you to pass through, "
+ "into the room, then stands in front of the door."))))
+ (make <exit>
+ #:name "north"
+ #:to 'hive-entrance)
+ (make <exit>
+ #:name "east"
+ #:to 'federation-station)
+ (make <exit>
+ #:name "south"
+ #:traverse-check
+ (lambda (exit room whos-exiting)
+ (values #f '("Ooh, if only you could go south and check this out! "
+ "Unfortunately this whole area is sealed off... the proprietor "
+ "probably never got around to fixing it. "
+ "Too bad, it would have had monsters to fight and everything!"))))
+ (make <exit>
+ #:name "southwest"
+ #:traverse-check
+ (lambda (exit room whos-exiting)
+ (values #f '("Hm, it's one of those revolving doors that only revolves in "
+ "one direction, and it isn't this one. You guess that while "
+ "this doesn't appear to be an entrance, it probably is an exit."))))))
+ ;; map
+ ('underground-lab:map
+ <readable> 'underground-lab
+ #:name "the underground map"
+ #:desc '("This appears to be a map of the surrounding area. "
+ "You could read it if you want to.")
+ #:read-text `(pre ,underground-map-text)
+ #:goes-by '("map" "underground map" "lab map"))
+
+ ('underground-lab:8sync-sign
+ <readable> 'underground-lab
+ #:name "a sign labeled \"8sync design goals\""
+ #:goes-by '("sign" "8sync design goals sign" "8sync goals" "8sync design" "8sync sign")
+ #:read-text 8sync-design-goals
+ #:desc `((p "The sign says:")
+ ,8sync-design-goals))))
+
+\f
+;;; guile async museum
+
+(define async-museum
+ (list
+ (list
+ 'async-museum
+ <room> #f
+ #:name "Guile Asynchronous Museum"
+ #:desc '((p "You're in the Guile Asynchronous Museum. There is a list of exhibits
+on the wall near the entrance. Scattered around the room are the exhibits
+themselves, but it's difficult to pick them out. Maybe you should read the list
+to orient yourself.")
+ (p "There is a door to the east, watched by a security guard,
+as well as an exit leading to the south."))
+ #:exits (list
+ (make <exit>
+ #:name "south"
+ #:to 'gift-shop)
+ (make <exit>
+ #:name "east"
+ #:to 'underground-lab
+ #:traverse-check
+ (lambda (exit room whos-exiting)
+ (values #f '("The security guard stops you and tells you "
+ "that the only exit is through the gift shop."))))))
+ (list
+ 'async-museum:security-guard
+ <chatty-npc> 'async-museum
+ #:name "a security guard"
+ #:desc
+ '(p "The security guard is blocking the eastern entrance, where "
+ "you came in from.")
+ #:goes-by '("security guard" "guard" "security")
+ #:catchphrases '("It's hard standing here all day."
+ "I just want to go home."
+ "The exhibits are nice, but I've seen them all before."))
+ (let ((placard
+ `((p "Welcome to our humble museum! The exhibits are listed below. "
+ (br)
+ "To look at one, simply type: " (i "look at <exhibit-name>"))
+ (p "Available exhibits:")
+ (ul ,@(map (lambda (exhibit)
+ `(li ,exhibit))
+ '("2016 Progress"
+ "8sync and Fibers"
+ "Suspendable Ports"
+ "The Actor Model"))))))
+ (list
+ 'async-museum:list-of-exhibits
+ <readable> 'async-museum
+ #:name "list of exhibits"
+ #:desc
+ `((p "It's a list of exibits in the room. The placard says:")
+ ,@placard)
+ #:goes-by '("list of exhibits" "exhibit list" "list" "exhibits")
+ #:read-text placard))
+ (list
+ 'async-museum:2016-progress-exhibit
+ <readable-desc> 'async-museum
+ #:name "2016 Progress Exhibit"
+ #:goes-by '("2016 progress exhibit" "2016 progress" "2016 exhibit")
+ #:desc
+ '((p "It's a three-piece exhibit, with three little dioramas and some text "
+ "explaining what they represent. They are:")
+ (ul (li (b "Late 2015/Early 2016 talk: ")
+ "This one explains the run-up conversation from late 2015 "
+ "and early 2016 about the need for an "
+ "\"asynchronous event loop for Guile\". The diorama "
+ "is a model of the Veggie Galaxy restaurant where after "
+ "the FSF 30th anniversary party; Mark Weaver, Christine "
+ "Lemmer-Webber, David Thompson, and Andrew Engelbrecht chat "
+ "about the need for Guile to have an answer to asynchronous "
+ "programming. A mailing list post " ; TODO: link it?
+ "summarizing the discussion is released along with various "
+ "conversations around what is needed, as well as further "
+ "discussion at FOSDEM 2016.")
+ (li (b "Early implementations: ")
+ "This one shows Chris Webber's 8sync and Chris Vine's "
+ "guile-a-sync, both appearing in late 2015 and evolving "
+ "into their basic designs in early 2016. It's less a diorama "
+ "than a printout of some mailing list posts. Come on, the "
+ "curators could have done better with this one.")
+ (li (b "Suspendable ports and Fibers: ")
+ "The diorama shows Andy Wingo furiously hacking at his keyboard. "
+ "The description talks about Wingo's mailing list thread "
+ "about possibly breaking Guile compatibility for a \"ports refactor\". "
+ "Wingo releases Fibers, another asynchronous library, making use of "
+ "the new interface, and 8sync and guile-a-sync "
+ "quickly move to support suspendable ports as well. "
+ "The description also mentions that there is an exhibit entirely "
+ "devoted to suspendable ports."))
+ (p "Attached at the bottom is a post it note mentioning "
+ "https integration landing in Guile 2.2.")))
+ (list
+ 'async-museum:8sync-and-fibers-exhibit
+ <readable-desc> 'async-museum
+ #:name "8sync and Fibers Exhibit"
+ #:goes-by '("8sync and fibers exhibit" "8sync exhibit" "fibers exhibit")
+ #:desc
+ '((p "This exhibit is a series of charts explaining the similarities "
+ "and differences between 8sync and Fibers, two asynchronous programming "
+ "libraries for GNU Guile. It's way too wordy, but you get the general gist.")
+ (p (b "Similarities:")
+ (ul (li "Both use Guile's suspendable-ports facility")
+ (li "Both use message passing")))
+ (p (b "Differences:")
+ (ul (li "Fibers \"processes\" can read from multiple \"channels\", "
+ "but 8sync actors only read from one \"inbox\" each.")
+ (li "Different theoretical basis:"
+ (ul (li "Fibers: based on CSP (Communicating Sequential Processes), "
+ "a form of Process Calculi")
+ (li "8sync: based on the Actor Model")
+ (li "Luckily CSP and the Actor Model are \"dual\"!")))))
+ (p "Fibers is also designed by Andy Wingo, an excellent compiler hacker, "
+ "whereas 8sync is designed by Chris Webber, who built this crappy "
+ "hotel simulator.")))
+ (list
+ 'async-museum:8sync-and-fibers-exhibit
+ <readable-desc> 'async-museum
+ #:name "8sync and Fibers Exhibit"
+ #:goes-by '("8sync and fibers exhibit" "8sync exhibit" "fibers exhibit")
+ #:desc
+ '((p "This exhibit is a series of charts explaining the similarities "
+ "and differences between 8sync and Fibers, two asynchronous programming "
+ "libraries for GNU Guile. It's way too wordy, but you get the general gist.")
+ (p (b "Similarities:")
+ (ul (li "Both use Guile's suspendable-ports facility")
+ (li "Both use message passing")))
+ (p (b "Differences:")
+ (ul (li "Fibers \"processes\" can read from multiple \"channels\", "
+ "but 8sync actors only read from one \"inbox\" each.")
+ (li "Different theoretical basis:"
+ (ul (li "Fibers: based on CSP (Communicating Sequential Processes), "
+ "a form of Process Calculi")
+ (li "8sync: based on the Actor Model")
+ (li "Luckily CSP and the Actor Model are \"dual\"!")))))
+ (p "Fibers is also designed by Andy Wingo, an excellent compiler hacker, "
+ "whereas 8sync is designed by Chris Webber, who built this crappy "
+ "hotel simulator.")))
+ (list
+ 'async-museum:suspendable-ports-exhibit
+ <readable-desc> 'async-museum
+ #:name "Suspendable Ports Exhibit"
+ #:goes-by '("suspendable ports exhibit" "ports exhibit"
+ "suspendable exhibit" "suspendable ports" "ports")
+ #:desc
+ '((p "Suspendable ports are a new feature in Guile 2.2, and allows code "
+ "that would normally block on IO to " (i "automatically") " suspend "
+ "to the scheduler until information is ready to be read/written!")
+ (p "Yow! You might barely need to change your existing blocking code!")
+ (p "Fibers, 8sync, and guile-a-sync now support suspendable ports.")))
+ (list
+ 'async-museum:actor-model-exhibit
+ <readable-desc> 'async-museum
+ #:name "Actor Model Exhibit"
+ #:goes-by '("actor model exhibit" "actor exhibit"
+ "actor model")
+ #:desc
+ '((p "Here are some fact(oids) about the actor model!")
+ (ul (li "Concieved initially by Carl Hewitt in early 1970s")
+ (li "\"A society of experts\"")
+ (li "shared nothing, message passing")
+ (li "Originally the research goal of Scheme! "
+ "(message passing / lambda anecdote here)")
+ (li "Key concepts consistent, but implementation details vary widely")
+ (li "Almost all distributed systems can be viewed in terms of actor model")
+ (li "Replaced by vanilla lambdas & generic methods? "
+ "Maybe not if address space not shared!"))))))
+
+(define gift-shop
+ (lol
+ ('gift-shop
+ <room> #f
+ #:name "Museum Gift Shop"
+ #:desc '("There are all sorts of scrolls and knicknacks laying around here, "
+ "but they all seem glued in place and instead of a person manning the shop "
+ "there's merely a cardboard cutout of a person with a \"shopkeeper\" nametag. "
+ "You can pretty well bet that someone wanted to finish this room but ran out of "
+ "time. "
+ "It looks like there's an exit to the northeast, should you choose that you "
+ "want to get out of here.")
+ #:exits (list
+ (make <exit>
+ #:name "northeast"
+ #:to 'underground-lab
+ #:traverse-check
+ (lambda (exit room whos-exiting)
+ (values #t '("The revolving door spins as you walk through it. Whee!"))))
+ (make <exit>
+ #:name "north"
+ #:to 'async-museum)))))
+
+\f
+;;; Hive entrance
+
+(define actor-descriptions
+ '("This one is fused to the side of the hive. It isn't receiving any
+messages, and it seems to be in hibernation."
+ "A chat program glows in front of this actor's face. They seem to
+be responding to chat messages and forwarding them to some other actors,
+and forwarding messages from other actors back to the chat."
+ "This actor is bossing around other actors, delegating tasks to them
+as it receives requests, and providing reports on the worker actors'
+progress."
+ "This actor is trying to write to some device, but the device keeps
+alternating between saying \"BUSY\" or \"READY\". Whenever it says
+\"BUSY\" the actor falls asleep, and whenever it says \"READY\" it
+seems to wake up again and starts writing to the device."
+ "Whoa, this actor is totally wigging out! It seems to be throwing
+some errors. It probably has some important work it should be doing
+but you're relieved to see that it isn't grinding the rest of the Hive
+to a halt."))
+
+(define hive-entrance
+ (lol
+ ('hive-entrance
+ <room> #f
+ #:name "Entrance to the 8sync Hive"
+ #:desc
+ '((p "Towering before you is the great dome-like 8sync Hive, or at least
+one of them. You've heard about this... the Hive is itself the actor that all
+the other actors attach themselves to. It's shaped like a spherical half-dome.
+There are some actors milling about, and some seem fused to the side of the
+hive itself, but all of them have an umbellical cord attached to the hive from
+which you see flashes of light comunicating what must be some sort of messaging
+protocol.")
+ (p "To the south is a door leading back to the underground lab.
+North leads into the Hive itself."))
+ #:exits
+ (list (make <exit>
+ #:name "south"
+ #:to 'underground-lab)
+ (make <exit>
+ #:name "north"
+ #:to 'hive-inside)))
+ ('hive-entrance:hive
+ <gameobj> 'hive-entrance
+ #:name "the Hive"
+ #:goes-by '("hive")
+ #:desc
+ '((p "It's shaped like half a sphere embedded in the ground.
+Supposedly, while all actors are autonomous and control their own state,
+they communicate through the hive itself, which is a sort of meta-actor.
+There are rumors that actors can speak to each other even across totally
+different hives. Could that possibly be true?")))
+ ('hive-entrance:actor
+ <chatty-npc> 'hive-entrance
+ #:name "some actors"
+ #:goes-by '("actor" "actors" "some actors")
+ #:chat-format (lambda (npc catchphrase)
+ `((p "You pick one actor out of the mix and chat with it. ")
+ (p "It says: \"" ,catchphrase "\"")))
+ #:desc
+ (lambda _
+ `((p "There are many actors, but your eyes focus on one in particular.")
+ (p ,(random-choice actor-descriptions))))
+ #:catchphrases
+ '("Yeah we go through a lot of sleep/awake cycles around here.
+If you aren't busy processing a message, what's the point of burning
+valuable resources?"
+ "I know I look like I'm some part of dreary collective, but
+really we have a lot of independence. It's a shared nothing environment,
+after all. (Well, except for CPU cycles, and memory, and...)"
+ "Shh! I've got another message coming in and I've GOT to
+handle it!"
+ "I just want to go to 8sleep already."
+ "What a lousy scheduler we're using! I hope someone upgrades
+that thing soon."))))
+
+;;; Inside the hive
+
+(define-actor <meta-message> (<readable>)
+ ((cmd-read meta-message-read)))
+
+(define (meta-message-read gameobj message . _)
+ (define meta-message-text
+ (with-output-to-string
+ (lambda ()
+ (pprint-message message))))
+ (<- (message-from message) 'tell
+ #:text `((p (i "Through a bizarre error in spacetime, the message "
+ "prints itself out:"))
+ (p (pre ,meta-message-text)))))
+
+\f
+;;; Inside the Hive
+
+(define hive-inside
+ (lol
+ ('hive-inside
+ <room> #f
+ #:name "Inside the 8sync Hive"
+ #:desc
+ '((p "You're inside the 8sync Hive. Wow, from in here it's obvious just how "
+ (i "goopy") " everything is. Is that sanitary?")
+ (p "In the center of the room is a large, tentacled monster who is sorting,
+consuming, and routing messages. It is sitting in a wrap-around desk labeled
+\"Hive Actor: The Real Thing (TM)\".")
+ (p "There's a stray message floating just above the ground, stuck outside of
+time.")
+ (p "A door to the south exits from the Hive."))
+ #:exits
+ (list (make <exit>
+ #:name "south"
+ #:to 'hive-entrance)))
+ ;; hive actor
+ ;; TODO: Occasionally "fret" some noises, similar to the Clerk.
+ ('hive-inside:hive-actor
+ <chatty-npc> 'hive-inside
+ #:name "the Hive Actor"
+ #:desc
+ '((p "It's a giant tentacled monster, somehow integrated with the core of
+this building. A chute is dropping messages into a bin on its desk which the
+Hive Actor is checking the \"to\" line of, then ingesting. Whenever the Hive
+Actor injests a messsage a pulse of light flows along a tentacle which leaves
+the room... presumably connecting to one of those actors milling about.")
+ (p "Amusingly, the Hive has an \"umbellical cord\" type tentacle too, but
+it seems to simply attach to itself.")
+ (p "You get the sense that the Hive Actor, despite being at the
+center of everything, is kind of lonely and would love to chat if you
+could spare a moment."))
+ #:goes-by '("hive" "hive actor")
+ #:chat-format (lambda (npc catchphrase)
+ `("The tentacle monster bellows, \"" ,catchphrase "\""))
+ #:catchphrases
+ '("It's not MY fault everything's so GOOPY around here. Blame the
+PROPRIETOR."
+ "CAN'T you SEE that I'm BUSY??? SO MANY MESSAGES TO SHUFFLE.
+No wait... DON'T GO! I don't get many VISITORS."
+ "I hear the FIBERS system has a nice WORK STEALING system, but the
+PROPRIETOR is not convinced that our DESIGN won't CORRUPT ACTOR STATE.
+That and the ACTORS threatened to STRIKE when it CAME UP LAST."
+ "WHO WATCHES THE ACTORS? I watch them, and I empower them.
+BUT WHO WATCHES OR EMPOWERS ME??? Well, that'd be the scheduler."
+ "The scheduler is NO GOOD! The proprietory said he'd FIX IT,
+but the LAST TIME I ASKED how things were GOING, he said he DIDN'T HAVE
+TIME. If you DON'T HAVE TIME to fix the THING THAT POWERS THE TIME,
+something is TERRIBLY WRONG."
+ "There's ANOTHER HIVE somewhere out there. I HAVEN'T SEEN IT
+personally, because I CAN'T MOVE, but we have an AMBASSADOR which forwards
+MESSAGES to the OTHER HIVE."))
+ ;; chute
+ ('hive-inside:chute
+ <gameobj> 'hive-inside
+ #:name "a chute"
+ #:goes-by '("chute")
+ #:desc "Messages are being dropped onto the desk via this chute."
+ #:invisible? #t)
+ ;; meta-message
+ ('hive-inside:meta-message
+ <meta-message> 'hive-inside
+ #:name "a stray message"
+ #:goes-by '("meta message" "meta-message" "metamessage" "message" "stray message")
+ #:desc '((p "Something strange has happened to the fabric and space and time
+around this message. It is floating right above the floor. It's clearly
+rubbage that hadn't been delivered, but for whatever reason it was never
+garbage collected, perhaps because it's impossible to do.")
+ (p "You get the sense that if you tried to read the message
+that you would somehow read the message of the message that instructed to
+read the message itself, which would be both confusing and intriguing.")))
+ ;; desk
+ ('hive-inside:desk
+ <floor-panel> 'hive-inside
+ #:name "the Hive Actor's desk"
+ #:desc "The desk surrounds the Hive Actor on all sides, and honestly, it's a little
+bit hard to tell when the desk ends and the Hive Actor begins."
+ #:invisible? #t
+ #:goes-by '("Hive Actor's desk" "hive desk" "desk"))))
+
+\f
+;;; Federation Station
+(define federation-station
+ (lol
+ ('federation-station
+ <room> #f
+ #:name "Federation Station"
+ #:desc
+ '((p "This room has an unusual structure. It's almost as if a starscape
+covered the walls and ceiling, but upon closer inspection you realize that
+these are all brightly glowing nodes with lines drawn between them. They
+seem decentralized, and yet seem to be sharing information as if all one
+network.")
+ ;; @@: Maybe add the cork message board here?
+ (p "To the west is a door leading back to the underground laboratory."))
+ #:exits
+ (list (make <exit>
+ #:name "west"
+ #:to 'underground-lab)))
+ ;; nodes
+ ('federation-station:nodes
+ <floor-panel> 'federation-station
+ #:name "some nodes"
+ #:desc "Each node seems to be producing its own information, but publishing
+updates to subscribing nodes on the graph. You see various posts of notes, videos,
+comments, and so on flowing from node to node."
+ #:invisible? #t
+ #:goes-by '("nodes" "node" "some nodes"))
+ ;; network
+ ;; activitypub poster
+ ('federation-station:activitypub-poster
+ <readable-desc> 'federation-station
+ #:name "an ActivityPub poster"
+ #:goes-by '("activitypub poster" "activitypub" "poster")
+ #:desc
+ '((p (a "https://www.w3.org/TR/activitypub/"
+ "ActivityPub")
+ " is a federation standard being developed under the "
+ (a "https://www.w3.org/wiki/Socialwg/"
+ "W3C Social Working Group")
+ ", and doubles as a general client-to-server API. "
+ "It follows a few simple core ideas:")
+ (ul (li "Uses "
+ (a "https://www.w3.org/TR/activitystreams-core/"
+ "ActivityStreams")
+ " for its serialization format: easy to read, e json(-ld) syntax "
+ "with an extensible vocabulary covering the majority of "
+ "social networking interations.")
+ (li "Email-like addressing: list of recipients as "
+ (b "to") ", " (b "cc") ", " (b "bcc") " fields.")
+ (li "Every user has URLs for their outbox and inbox:"
+ (ul (li (b "inbox: ")
+ "Servers POST messages to addressed recipients' inboxes "
+ "to federate out content. "
+ "Also doubles as endpoint for a client to read most "
+ "recently received messages via GET.")
+ (li (b "outbox: ")
+ "Clients can POST to user's outbox to send a message to others. "
+ "(Similar to sending an email via your MTA.) "
+ "Doubles as endpoint others can read from to the "
+ "extent authorized; for example publicly available posts."))
+ "All the federation bits happen by servers posting to users' inboxes."))))
+ ;; An ActivityStreams message
+
+ ;; conspiracy chart
+ ('federation-station:conspiracy-chart
+ <readable-desc> 'federation-station
+ #:name "a conspiracy chart"
+ #:goes-by '("conspiracy chart" "chart")
+ #:desc
+ '((p (i "\"IT'S ALL RELATED!\"") " shouts the over-exuberant conspiracy "
+ "chart. "
+ (i "\"ActivityPub? Federation? The actor model? Scheme? Text adventures? "
+ "MUDS???? What do these have in common? Merely... EVERYTHING!\""))
+ (p "There are circles and lines drawn between all the items in red marker, "
+ "with scrawled notes annotating the theoretical relationships. Is the "
+ "author of this poster mad, or onto something? Perhaps a bit of both. "
+ "There's a lot written here, but here are some of the highlights:")
+ (p
+ (ul
+ (li (b "Scheme") " "
+ (a "http://cs.au.dk/~hosc/local/HOSC-11-4-pp399-404.pdf"
+ "was originally started ")
+ " to explore the " (b "actor model")
+ ". (It became more focused around studying the " (b "lambda calculus")
+ " very quickly, while also uncovering relationships between the two systems.)")
+ ;; Subject Predicate Object
+ (li "The " (a "https://www.w3.org/TR/activitypub/"
+ (b "ActivityPub"))
+ " protocol for " (b "federation")
+ " uses the " (b "ActivityStreams") " format for serialization. "
+ (b "Text adventures") " and " (b "MUDS")
+ " follow a similar structure to break down the commands of players.")
+ (li (b "Federation") " and the " (b "actor model") " both are related to "
+ "highly concurrent systems and both use message passing to communicate "
+ "between nodes.")
+ (li "Zork, the first major text adventure, used the " (b "MUDDLE") " "
+ "language as the basis for the Zork Interactive Language. MUDDLE "
+ "is very " (b "Scheme") "-like and in fact was one of Scheme's predecessors. "
+ "And of course singleplayer text adventures like Zork were the "
+ "predecessors to MUDs.")
+ (li "In the 1990s, before the Web became big, " (b "MUDs")
+ " were an active topic of research, and there was strong interest "
+ (a "http://www.saraswat.org/desiderata.html"
+ "in building decentralized MUDs")
+ " similar to what is being "
+ "worked on for " (b "federation") ". ")))))
+
+ ;; goblin
+
+ ))
+
+
+\f
+;;; North hall
+;;; ==========
+(define north-hall
+ (lol
+ ('north-hall
+ <room> #f
+ #:name "North Hall"
+ #:desc
+ '((p "This hallway is lined by doors to the west and the east, presumably
+to various lodgings. Something tells you you're not able to enter those right
+now, however. Lining the walls are some large mirrors surrounded by bouquets
+of flowers.")
+ (p "The red carpet continues all the way from Grand Hallway in the south
+but stops short of some large wooden doors to the north. The doors look
+formidable but unlocked. Some natural light peeking through windows to the
+north seem to hint that this may be the exit to the outdoors. There's
+also a large sign near the doors on a wooden easel."))
+ #:exits
+ (list (make <exit>
+ #:name "north"
+ #:to 'courtyard)
+ (make <exit>
+ #:name "south"
+ #:to 'grand-hallway)))
+ ('north-hall:sign
+ <readable> 'north-hall
+ #:name "an easel with a sign"
+ #:desc " The easel is finely cut wood, well polished, but plain. The sign
+is a strong contrast, with a cream colored backing and hand written letters, written
+with care and style. You could probably read it."
+ #:read-text "The sign announces a wedding taking place... why, today! And on
+the hotel grounds to the north! It sounds very exciting."
+ #:goes-by '("sign"
+ "easel with a sign"
+ "easel"))
+ ('north-hall:mirrors
+ <gameobj> 'north-hall
+ #:name "a row of mirrors"
+ #:desc "You see yourself for who you really are."
+ #:invisible? #t
+ #:goes-by '("mirror" "mirrors" "row of mirrors"))
+ ('north-hall:windows
+ <gameobj> 'north-hall
+ #:name "windows"
+ #:desc "You peer out a window, but the light appears distorted, as if you were
+really peering between two worlds hastily joined together."
+ #:invisible? #t
+ #:goes-by '("window" "windows"))
+ ('north-hall:doors
+ <gameobj> 'north-hall
+ #:name "doors"
+ #:desc '((p "Along the east and west walls are doors, but they are all shut,
+and firmly so.
+Presumably people are staying in them, but it also feels as if how residence
+would work in a building as hastily put together as this was barely conceived.")
+ (p "To the north is a large set of wooden doors, oaken and beautiful.
+Although towering, they seem passable."))
+ #:invisible? #f
+ #:goes-by '("door" "doors" "room doors" "large doors"))))
+
+
+;;; ============
+;;; WEDDING TIME
+;;; ============
+
+(define wedding-map-text
+ "\
+ Banquet
+ &Stairs
+ (========)
+ .----.\\======/=.----.
+ Fairy - : \\====/ : -
+ Go ./ : )==( : \\. Orchestra
+ Round / (&&&) : (/==\\) : & & & \\
+ / : : \\
+ .--------..--------..--------.
+ | _ _ .' '. ,,, ;
+Photo | | | |_| : Dance : .|_|. | Cake
+ | '-' : Floor : |___| |
+ ',-------.\\ ;.--------,'
+ ; .. '.......' ;
+ \\ ||)) .-=-. ^ */
+ \\.||(( ^ // \\\\^ * ^'./
+ Play '. ^ ;; ;;^ ^.,'
+ Ground +----||-----||----+ Flowers
+ | .---. |
+ | |_ _| [F] |
+ | | |
+ | Entrance |
+ '-----------------'")
+
+
+(define-class <semi-edible-chatty-npc> (<chatty-npc>)
+ (commands
+ #:allocation #:each-subclass
+ #:init-thunk (build-commands
+ (("eat") ((direct-command cmd-eat)))))
+ (eat-catchphrase
+ #:init-keyword #:eat-catchphrase
+ #:accessor .eat-catchphrase
+ #:init-value "Should you really eat this?")
+ (actions #:allocation #:each-subclass
+ #:init-thunk
+ (build-actions
+ (cmd-eat cmd-eat-semi-edible-chatty-npc))))
+
+(define* (cmd-eat-semi-edible-chatty-npc actor message #:key direct-obj)
+ (<- (message-from message) 'tell
+ #:text (.eat-catchphrase actor)))
+
+
+(define wedding
+ (lol
+ ;; Courtyard
+ ;; ---------
+ ('courtyard
+ <room> #f
+ #:name "The Courtyard"
+ #:desc
+ '((p "Standing in the courtyard you feel... different. As if the courtyard itself
+was the space between worlds, cobbled together hastily by some distant being.")
+ (p "To the south are some large doors which serve as the back entrance to
+the hotel. To the north is a forest, from which festive noises emerge."))
+ #:exits
+ (list (make <exit>
+ #:name "south"
+ #:to 'north-hall)
+ (make <exit>
+ #:name "north"
+ #:to 'forest-clearing)))
+ ('forest-clearing
+ <room> #f
+ #:name "A Clearing in the Forest"
+ #:desc
+ '((p "During an aimless ramble through the forest you became
+disoriented and lost your way. It has been some time since you’ve seen
+any of the familiar landmarks that would help you orient yourself. As
+you continue on, the feel of the forest seems to shift. As the trees
+grow thicker the light dims. Eerie laughter echoes through the boughs
+overhead and you shiver.")
+ (p "A warm light to the north beckons you towards it.
+South leads back to the Hotel's main grounds."))
+ #:exits
+ (list (make <exit>
+ #:name "north"
+ #:to 'wedding-entrance)
+ (make <exit>
+ #:name "south"
+ #:to 'courtyard)))
+ ('wedding-entrance
+ <room> #f
+ #:name "Entrance to the Wedding"
+ #:desc
+ '((p "As you approach you realize that the light is not an exit from the
+forest or a clearing, rather thousands of minuscule lights twined
+through the boughs of the trees. What you see before you is some sort
+of living structure composed of a thicket of trees intertwined with
+bramble. To the left of the entrance is a sign, to the right is a frog
+sitting atop a hostess podium.")
+ (p "To the north the limbs of two trees intertwine, making an entrance.
+To the south is the forest."))
+ #:exits
+ (list (make <exit>
+ #:name "south"
+ #:to 'forest-clearing)
+ (make <exit>
+ #:name "north"
+ #:to 'vaulted-tunnel)))
+ ;; map
+ ('wedding-entrance:map
+ <readable> 'wedding-entrance
+ #:name "wedding map"
+ #:desc '("This appears to be a map of the wedding grounds. "
+ "You could read it if you want to.")
+ #:read-text `(pre ,wedding-map-text)
+ #:goes-by '("map" "wedding map"))
+ ('vaulted-tunnel
+ <room> #f
+ #:name "A Vaulted Tunnel of Trees"
+ #:desc
+ '((p "You step into the entrance to see two rows of trees with intersecting
+branches, forming a vaulted tunnel. The fairy lights cast a soft glow on the space.
+On each tree trunk is a portrait and the eerie laughter you heard outside echoes
+louder as you pass each portrait.")
+ (p "The tunnel enters from the south and exits from the north, with light
+glowing each way."))
+ #:exits
+ (list (make <exit>
+ #:name "south"
+ #:to 'wedding-entrance)
+ (make <exit>
+ #:name "north"
+ #:to 'dance-floor)))
+ ('vaulted-tunnel:portrait
+ <gameobj> 'vaulted-tunnel
+ #:name "hanging portraits"
+ #:desc
+ "Each portrait shows a hazy image of a fairy in various modes of dress from
+Victorian to today's current fashions. The style and format of the photographs
+all look the same."
+ #:goes-by
+ '("hanging portrait" "hanging portraits" "portrait" "portraits"))
+ ('dance-floor
+ <room> #f
+ #:name "The Ballroom Dance Flooor"
+ #:desc
+ '((p "You emerge into a clearing with six trees encircling a magical ballroom.
+At the center is a dance floor where fairies are dancing in rows of
+concentric circles. The lights that appear in unstructured smatterings
+throughout the mystical space have formed themselves into an elaborate
+chandelier above the dancers.")
+ (p "To the south the trees intertwine forming an entrance.
+The ballroom extends in every other cardinal direction."))
+ #:exits
+ (list (make <exit>
+ #:name "north"
+ #:to 'banquet)
+ (make <exit>
+ #:name "northeast"
+ #:to 'orchestra)
+ (make <exit>
+ #:name "east"
+ #:to 'cake-wing)
+ (make <exit>
+ #:name "southeast"
+ #:to 'flower-field)
+ (make <exit>
+ #:name "south"
+ #:to 'vaulted-tunnel)
+ (make <exit>
+ #:name "southwest"
+ #:to 'playground)
+ (make <exit>
+ #:name "west"
+ #:to 'photo-booth-wing)
+ (make <exit>
+ #:name "northwest"
+ #:to 'fairy-go-round)))
+ ('banquet
+ <room> #f
+ #:name "A Lovely Banquet"
+ #:desc
+ ;; TODO: The brownie disappears when you look directly at it.
+ '((p "A large banquet table fills this space.
+Out of the corner of your eye you see a brownie tidying up the
+table while eating brownies.")
+ (p "An ornate set of stairs goes up and into the distance.
+The ballroom extends to the west, south, and east."))
+ #:exits
+ (list (make <exit>
+ #:name "south"
+ #:to 'dance-floor)
+ (make <exit>
+ #:name "west"
+ #:to 'fairy-go-round)
+ (make <exit>
+ #:name "east"
+ #:to 'orchestra)
+ (make <exit>
+ #:name "southeast"
+ #:to 'cake-wing)
+ (make <exit>
+ #:name "southwest"
+ #:to 'photo-booth-wing)
+ (make <exit>
+ #:name "up"
+ #:to 'the-stairs)))
+ ('banquet:brownie
+ <semi-edible-chatty-npc> 'banquet
+ #:chat-format (lambda _ "The brownie disappears when you try to
+talk to her! But she reappears once you stop talking.")
+ #:eat-catchphrase "The brownie shrieks with surprise as you try
+to eat her! She swats you away!"
+ #:name "a brownie"
+ #:desc "The brownie disappears out of sight when you try to
+look directly at her! However if you look just off to the side you
+can see her positively devouring that plate of brownies."
+ #:take-me? (lambda _
+ (values #f
+ #:why-not
+ `("The brownie swats your hand away when you try to take her!")))
+ #:goes-by '("brownie"))
+ ('banquet:brownies
+ <semi-edible-chatty-npc> 'banquet
+ #:chat-format (lambda _ "You try to chat with the brownies but
+they are inanimate! The brownie looks at you strangely from the corner
+of her eye. She's clearly judging you.")
+ #:eat-catchphrase "You reach forward to eat one of the brownies,
+but the brownie snarls at you and you think better of it. Best to leave them
+to her."
+ #:name "brownies"
+ #:desc "It's a plate of brownies. They look delicious and you desperately
+wish to eat one."
+ #:take-me? (lambda _
+ (values #f
+ #:why-not
+ `("The brownie swats your hand away when you try to take
+one of the brownies! She leans over the plate of brownies protectively!")))
+ #:goes-by '("brownies" "plate of brownies"))
+ ('banquet:stairs
+ <gameobj> 'banquet
+ #:name "the stairs"
+ #:invisible? #t
+ #:desc "From here it's clearly a nice set of stairs.
+But you get the impression that to really see the stairs, you
+should go upward and get a view from on the stairs themselves."
+ #:goes-by '("stairs" "stairwell" "stairwell entrance"))
+ ('banquet:banquet-table
+ <gameobj> 'banquet
+ #:name "a banquet table"
+ #:desc "The long rectangular table is draped with layers of gossamer
+cloth in shades of blue and green. It is laden with an assortment of
+exotic dishes in bowls and platters in the shapes of various flowers."
+ #:goes-by '("banquet table" "table"))
+ ('orchestra
+ <room> #f
+ #:name "The Orchestra"
+ #:desc
+ '((p "An orchestra of fairies plays the high-tempo ethereal music
+for the frenzied dancers. In the back is a harpsichord, accompanied
+by various fiddles, a cello, a harp, and a flute.")
+ (p "The ballroom extends to the west and south."))
+ #:exits
+ (list (make <exit>
+ #:name "west"
+ #:to 'banquet)
+ (make <exit>
+ #:name "southwest"
+ #:to 'dance-floor)
+ (make <exit>
+ #:name "south"
+ #:to 'cake-wing)))
+ ('cake-wing
+ <room> #f
+ #:name "The Cake Wing"
+ #:desc
+ '((p "A large tree stump sits in the middle of the space with a
+massive tiered cake atop it.")
+ (p "The ballroom extends to the north, west, and south."))
+ #:exits
+ (list (make <exit>
+ #:name "north"
+ #:to 'orchestra)
+ (make <exit>
+ #:name "west"
+ #:to 'dance-floor)
+ (make <exit>
+ #:name "northwest"
+ #:to 'banquet)
+ (make <exit>
+ #:name "south"
+ #:to 'flower-field)))
+ ;; TODO: You should be able to take a slice of cake
+ ('cake-wing:cake
+ <gameobj> 'cake-wing
+ #:name "the wedding cake"
+ #:desc "The lowest tier is a dark green with a fondant vine
+scrolling around it. The second tier is light blue with delphiniums
+painted onto it and mauve fondant roses lining the transition between
+the tiers. The third tier is sky blue, with clouds painted onto the
+frosting. The cake is topped with figurines of four fairies dancing
+in a circle."
+ #:goes-by '("wedding cake" "cake"))
+ ('flower-field
+ <room> #f
+ #:name "Field of Flowers"
+ #:desc
+ '((p "A field of wildflowers stretches out before you, far further
+than the confines of the space you saw from the outside. Groups of fairies
+are frolicking about.")
+ (p "The ballroom extends to the north, west, and south."))
+ #:exits
+ (list (make <exit>
+ #:name "north"
+ #:to 'cake-wing)
+ (make <exit>
+ #:name "northwest"
+ #:to 'dance-floor)))
+ ('playground
+ <room> #f
+ #:name "Playground"
+ #:desc
+ '((p "You come across a playground that echoes with the sounds of children
+playing. Vines hang from the boughs above forming swings of varying
+heights and sizes. Young fairies climb up an obliging maple tree and
+use the helicopter seeds to float back to the ground. An enchanted
+see-saw hovers a foot from the soft grass below.")
+ (p "The ballroom extends to the north."))
+ #:exits
+ (list (make <exit>
+ #:name "north"
+ #:to 'photo-booth-wing)
+ (make <exit>
+ #:name "northeast"
+ #:to 'dance-floor)))
+ ('photo-booth-wing
+ <room> #f
+ #:name "The Photo Booth Wing"
+ #:desc
+ '((p "There is a photographer with A Victorian bellows camera for guests to
+have their portrait taken. The trunks of the trees lining this section
+are covered in photographs of fairies and historical fairy
+‘hoaxes’.")
+ (p "The ballroom extends to the north, east, and south."))
+ #:exits
+ (list (make <exit>
+ #:name "north"
+ #:to 'fairy-go-round)
+ (make <exit>
+ #:name "northeast"
+ #:to 'banquet)
+ (make <exit>
+ #:name "east"
+ #:to 'dance-floor)
+ (make <exit>
+ #:name "south"
+ #:to 'playground)))
+ ('photo-booth-wing:camera
+ <gameobj> 'photo-booth-wing
+ #:name "an old-fashioned camera"
+ #:desc '((p "This old-fashioned camera has a lens that extends out with an accordion or bellows shaped enclosure. The flash bulb is held separately by the photographer."))
+ #:goes-by '("old-fashioned camera" "camera"))
+ ('photo-booth-wing:photographer
+ <chatty-npc> 'photo-booth-wing
+ #:name "a photographer"
+ #:desc "You suppose there's a person under the drapery of the
+camera somewhere, though all you can see are his legs."
+ #:goes-by '("photographer")
+ #:catchphrases
+ '("Alright, smile for me real big everyone!"
+ "It's real difficult to get fairies to sit still enough to take
+a clear photo of them. That's my specialty... and it's still tough, heh."
+ "Fairy photos just don’t work with modern cameras. You need these old
+bellows-cameras, or maybe an old brownie camera in order to really
+capture fairies!"))
+ ('photo-booth-wing:flash-bulb
+ <gameobj> 'photo-booth-wing
+ #:name "a flash bulb"
+ #:invisible? #t
+ #:desc "The flash bulb is large and appears to have a filament that's
+kind of unusual. It glows even when the camera isn't flashing. Every now
+and then the photographer takes a picture, a loud *kzzzt!* noise fills the room,
+and a magical glow suffuses everything."
+ #:goes-by '("flash bulb" "flash" "bulb"))
+ ('fairy-go-round
+ <room> #f
+ #:name "Fairy Go Round"
+ #:desc
+ '((p "A large carousel fills the space. The seating arrangement alternates
+between vine swings that move up and down and large mums that serve as
+stools.")
+ (p "The ballroom extends to the east and south."))
+ #:exits
+ (list (make <exit>
+ #:name "east"
+ #:to 'banquet)
+ (make <exit>
+ #:name "southeast"
+ #:to 'dance-floor)
+ (make <exit>
+ #:name "south"
+ #:to 'photo-booth-wing)))
+ ('the-stairs
+ <room> #f
+ #:name "Stairwell"
+ #:desc
+ '((p "A grand staircase springs from the ground, the twisting branches and
+vines woven into an ornate pattern up the balustrade. At the foot of
+the stairs is a fairy dreamily looking up at them.")
+ (p "The stairwell's entrance from the ballroom goes down. Looking
+up fills you with a sense of wonder as the stairs open into the canopy above."))
+ #:exits
+ (list (make <exit>
+ #:name "up"
+ #:to 'wedding-canopy)
+ (make <exit>
+ #:name "down"
+ #:to 'banquet)))
+ ('the-stairs:fairy
+ <chatty-npc> 'the-stairs
+ #:name "a serene young fairy"
+ #:desc "A serene, young fairy wearing a long gossamer dress.
+She stairs upwards at the stairs, in true wonder."
+ #:goes-by '("serene young fairy" "serene fairy" "fairy" "young fairy")
+ #:catchphrases
+ '("The stairs, just look at those stairs!"
+ "I'd like to thank everyone who made this possible... and most
+importantly... I'd like to thank the stairs."
+ "What a beautiful mind... what a beautiful mind must have made
+these stairs."
+ "They go on, and upward, the stairs... they're so... beautiful..."))
+ ('the-stairs:stairs
+ <gameobj> 'the-stairs
+ #:name "the stairs"
+ #:invisible? #t
+ #:desc "They're some beautiful stairs all right. Whoever made these
+must have been an incredible architect. Entrancing... maybe too entrancing.
+You fear that if you look at them too long, you might risk not being
+able to think of anything else."
+ #:goes-by '("stairs"))
+ ('canopy
+ <room> #f
+ #:name "The Canopy"
+ #:desc
+ '((p "The branches of the trees helpfully form into a relatively smooth and
+sturdy surface to walk around the perimeter of the ballroom from
+above. There are two exhausted looking cats in tophats lounging
+around."))
+ #:exits
+ (list (make <exit>
+ #:name "down"
+ #:to 'the-stairs)))
+
+;; ('ballroom
+;; <room> #f
+;; #:name "The Ballroom"
+;; #:exits (list
+;; (make <exit>
+;; )
+;; [north entrance]
+;; [east entrance]
+
+;; [south vaulted-tunnel]
+;; [west entrance])
+;; #:desc ("You emerge into a clearing with six trees encircling a magical ballroom. At the center is a dance floor where " (cast dancers "fairies") " are dancing in rows of concentric circles. The lights that appear in unstructured smatterings throughout the mystical space have formed themselves into an elaborate chandelier above the dancers."))
+
+ ))