programming/alan/examples/saviour.alan

-- This is a short game in Alan. It's got very little comments and is not
-- written as an example (in which case it would have been much better
-- documented ;-). Instead it was the first adventure game I ever wrote,
-- actually in Cobol as a farewell gift to my co-workers at a job I once
-- held. That company was producing Cobol-executing small business computers.
--
-- Well, in 1985 I went on to start at my current company, SoftLab, which as
-- a main area of competence has computer languages and development tools.
-- As a first experiment I implemented the IF language that G�ran Forslund and
-- I had talked about for some time. That was Alan version 0. Since then
-- Alan has matured and is now in its v2.x:s. This game has been with us
-- since then and been ported from version to version of Alan.
--
-- No guarantees, of course, and it isn't as pretty as I would like, and it
-- does not show the real potential of Alan (but perhaps some of its elegance
-- can be glimpsed ;-) But due to popular demand I am now placing this at
--
--	ftp://ftp.gmd.de/pub/if-archive
--
-- Probably under programming/alan/examples (unless Volker Blasius doesn't
-- have any better suggestion)
--

OPTIONS
    Language English.
    Pack.
    Debug.

OBJECT ATTRIBUTES
    NOT takeable.
    NOT readable.
    NOT openable.
    NOT startable.
    examinable.


SYNONYMS
    e = east.
    w = west.
    n = north.
    s = south.
    u = up.
    d = down.


CONTAINER pseudowords
END CONTAINER.

VERB drop
    CHECK OBJECT IN hero
    	ELSE "You don't have the $o."
    DOES
	LOCATE OBJECT HERE.
	"Dropped."
END VERB.


SYNTAX 'save' = 'save'.

VERB 'save'
    DOES
      SAVE.
      "Ok. Saved."
END VERB 'save'.


SYNTAX 'restore' = 'restore'.

VERB 'restore'
    DOES
      RESTORE.
      LOOK.
END VERB 'restore'.


VERB examine
    CHECK OBJECT IS examinable
        ELSE "There is nothing special about the $o."
END VERB.


VERB read
    CHECK OBJECT IS readable
    	ELSE "There is nothing written on the $o."
END VERB.


VERB lock, unlock
    CHECK OBJECT IS openable
    	ELSE "There is no way to $v the $1."
    DOES
        "You have to use something to $v the $o with."
END VERB.


SYNTAX unlock_with = 'unlock' (o) 'with' (k).

VERB unlock_with
    CHECK o IS openable
	ELSE "There is no way to $v the $1."
END VERB unlock_with.


VERB open, close
    CHECK
	OBJECT IS openable
    ELSE
	"There is no way to $v the $1."
END VERB.


SYNTAX	-- Does only work with 2.7 and above
    find = 'find' (o)!
	WHERE o ISA ACTOR OR OBJECT
	    ELSE "Don't know how you plan on finding that..."

VERB find
    CHECK o NOT IN hero
	ELSE "You already have it!"
    DOES ONLY
	"You have to find things yourself..."
END VERB find.


VERB insert
    CHECK "I don't understand what you want to insert the $o into."
END VERB insert.

SYNONYMS
	put = 'insert'.
	'in' = 'into'.
SYNTAX
	insert_into = 'insert' (o) 'into' (s).
VERB insert_into
    CHECK o <> s
	ELSE "Don't try to be smart with me!"
END VERB insert_into.


VERB 'start'
    CHECK OBJECT IS startable
	ELSE "You can't start the $o."
END VERB 'start'.


SYNTAX run = 'run'.
VERB run
    DOES
        "You better not run in this old building, you might trip and fall."
END VERB run.


SYNTAX 'score' = 'score'.
VERB 'score'
    DOES
        SCORE.
END VERB 'score'.


SYNTAX help = help.
VERB help
    DOES
	"In this game I am your eyes and your body. I will describe the
	surroundings for you. You tell me what you want to do. For
	example if you want to go north, then type 'north'. But there are
	a lot of other things you may do, like picking up things,
	examining them, opening doors and so on. Try anything you would
	do if you really were standing here!$pRemember to study the
	descriptions very carefully, they are sure to contain clues!
	$p'score' may be used to see how well you are doing. 'save' and
	'restore' allows you to save a game and restore it later.
	$pGood Luck!! You'll need it!"
END VERB.


SYNTAX i = i.
SYNONYMS invent = i. 
VERB i
    DOES
	LIST hero.
END VERB.


SYNTAX l = l.
SYNONYMS 'look' = l.
VERB l
    DOES
	LOOK.
END VERB.


SYNTAX q = q.
SYNONYMS 'quit' = q.
VERB q
    DOES
	"Chicken."
	SCORE.
	IF SCORE = 125 THEN "You couldn't do better!"
	ELSIF SCORE > 100 THEN "Not quite perfect."
	ELSIF SCORE > 50 THEN "You have been doing this before."
	ELSIF SCORE > 25 THEN "A promising beginning."
	ELSIF SCORE > 0 THEN "An amateur..."
	ELSE "No comment." END IF.
	QUIT.
END VERB.


SYNTAX take = take (o)*.
VERB take
    CHECK OBJECT NOT IN hero
	ELSE
            "You already have the $1."
    AND OBJECT IS takeable
	ELSE
            "You can't take the $1."
    DOES
        LOCATE OBJECT IN hero.
        "Taken."
END VERB.


SYNTAX type = 'type' (str)
    WHERE str ISA STRING
	ELSE "You must supply a string containing what you propose to type."
VERB type
    CHECK terminal HERE
        ELSE "There is nothing here to type on."
    AND terminal IS connected
        ELSE "The terminal (on which I assume you mean to type on?)
              is not connected anywhere, so nothing happens."
    AND computer IS running
        ELSE "The computer is not running so your input is just ignored."
    DOES
	IF terminal IS showing_msg1 THEN
	    IF str = password OF manual THEN
		"'Welcome" SAY password of manual. "$$!$pEnter command:'"
		MAKE terminal NOT showing_msg1.
		MAKE terminal showing_msg2.
	    ELSE
		"'ERROR: Wrong USERID.$nPlease login. Enter USERID:'"
		SET pwtry OF manual TO str.
	    END IF.
	ELSIF terminal IS showing_msg2 THEN
	    IF str = "backup" THEN
		IF tape IS NOT mounted THEN "'ERROR: No tape mounted.'"
        	ELSE
		    "The tape starts to spin and after a few moments it stops.
		     Then it starts to rewind itself. FLAP, FLAP, and then it
		     stops completely. The terminal displays:
		     $p'Backup finished.$nEnter command:'"
		    MAKE tape copied.
		END IF.
	    ELSIF str = "info" THEN
		"'INFO - information about programs'
		 $n'BACKUP' - program backup copying'
		 $n'ADVENTURE' - recreational game'
		 $n'Enter command:'"
	    ELSIF str = "adventure" THEN
		"'Welcome to adventure!!$pYou are standing at the end of a
		 road before a small brick building. Around you is a forest.
		 A small stream flows out of the building and down a gully.'
		 $pWith a loud POP! the computer stops suddenly and the
		 terminal turns blank."
		MAKE computer NOT running.
		MAKE computer popped.
		MAKE terminal NOT showing_msg1.
		MAKE terminal NOT showing_msg2.
	    ELSE
		"'ERROR: Unknown command.$nEnter command:'"
	    END IF.
	END IF.	    
END VERB.


LOCATION nowhere
END LOCATION.



LOCATION outside NAME Outside the tall building
    DESCRIPTION
        "To the north is a tall ancient building with a large entrance.
         On the top there is a clock tower. Most of the windows in the
         building are broken, and a sign with three oval objects are
         hanging lose from the wall."
    
    EXIT north TO hall
	DOES
            SCORE 5.
    END EXIT.
END LOCATION.
    
    
    
LOCATION hall
    DESCRIPTION
        "Inside the entrance is a hallway full of dust and pieces of
         the ceiling has fallen to the floor. At the west end is a
         staircase, and to the south is the exit."
        DESCRIBE door.

    EXIT east TO cafe
        CHECK door IS NOT closed
	    ELSE "You can not go in there, the door is closed."
    END EXIT.
    EXIT west TO stairs.
    EXIT south TO outside
	DOES
	    "As you walk out through the door the large building
	     collapses in a huge pile of bricks and stones. The cloud of
	     dust will not settle for days. You should count yourself
	     lucky that you got out in time.$p"
	    IF tape IS copied THEN
		IF tape IN hero THEN
		    SCORE 25.
		    "CONGRATULATIONS!! You managed to save"
		ELSE
		    "Unfortunately you forgot the tape with"
		END IF.
	    ELSE
		"The world will now have to live without"
	    END IF.
	    "the last copy of the ADVENTURE game."
	    QUIT.
    END EXIT.
END LOCATION.

OBJECT door AT hall
    IS
        closed.
        locked.
	readable.
	openable.

    DESCRIPTION
        "To the east is a folding door."
        IF door IS closed THEN
            "It is closed."
        ELSE
            "It is open revealing the entrance to a cafeteria."
        END IF.

    VERB examine DOES
        "The door is made of wooden segments, folding together as it
         is opened or closed. It also has a lock, but the key isn't in
         the lock. Some carved letters are fastned to the door."
    END VERB.

    VERB open DOES
        IF door IS NOT closed THEN
            "It is already open."
        ELSIF door IS locked THEN
            "The door is locked, and doesn't open."
        ELSE
            "The door opens, revealing the entrance to a dusty old
             cafeteria."
            MAKE door NOT closed.
            SCORE 10.
        END IF.
    END VERB.

    VERB close DOES
        IF door IS closed THEN
            "It is already closed."
        ELSE
            MAKE door closed.
            "Closed."
        END IF.
    END VERB.

    VERB read DOES
        "The wooden letters are not hanging straight but they must
         have formed the word 'CAFETERIA'."
    END VERB.

    VERB unlock_with
        WHEN o DOES
            IF door IS NOT closed THEN
                "It isn't even closed!"
            ELSIF door IS NOT locked THEN
                "It isn't locked!"
            ELSIF k = keys THEN
		IF keys NOT IN hero THEN
		    "You don't have the keys!"
		ELSE
                    "The key clicks in the lock as the door unlocks."
                    MAKE door NOT locked.
		END IF.
	    ELSE
		"You can't $v the $1 with the $2."
            END IF.
    END VERB.

    VERB lock
	DOES
        IF door IS NOT closed THEN
            "It isn't even closed!"
        ELSIF door IS locked THEN
            "It is already locked."
        ELSIF keys NOT IN hero THEN
            "You have no key!"
        ELSE
            "The key clicks in the lock as the door locks."
            MAKE door locked.
        END IF.
    END VERB.
END OBJECT.


LOCATION stairs
    DESCRIPTION
        "You are at the landing of an old staircase. It seem steady
         enough to walk in, but be careful if you are going to use it.
         There is a passage leading up, and another leading down into
         a dark cellar. To the east is the hallway. A strange smell
	 emerges from below."

    EXIT up TO first.
    EXIT down TO cellar.
    EXIT east TO hall.
END LOCATION.


LOCATION cellar
    DESCRIPTION
        "In front of you is a dark cellar. To the west is a doorway
         into a dark room. The stairs lead up. A thin beam of light
         has found its way all the way down here."

    EXIT up TO stairs.
    EXIT west TO store
        CHECK rats ARE NOT hungry
	    ELSE
		"You can not go in there, the rats are too fierce. The hungry
		 rats bite and tear at your legs as soon as you try to get past
		 them."
        DOES
            "Silently sneaking past the sleeping rats, you enter the
             dark room to the west."
    END EXIT.
END LOCATION.

OBJECT rats AT cellar
    ARE
        hungry.

    DESCRIPTION
        "In the light from the sun some rats can be seen."
        IF rats ARE NOT hungry THEN
            "They are all sleeping."
        END IF.

    VERB examine DOES
        IF rats ARE hungry THEN
            "Watch it, you nearly lost your fingers trying to touch
             the hungry and biting rats. You must be more careful!"
        ELSE
            "The rats are awakened by your movements, and they are
             even more HUNGRY!!!"
            MAKE rats hungry.
        END IF.
    END VERB.

    VERB kick DOES
        IF rats ARE hungry THEN
            "Careful, you are only making them more angry!"
        ELSE
            "Kicking at them wakes them up, and now they are really
             HUNGRY!!"
            MAKE rats hungry.
        END IF.
    END VERB.
END OBJECT.


LOCATION store
    DESCRIPTION
        "This must be an old storage room. There seems to be any
         amount of old crap here. Keytops from ancient keyboards are
         scattered all over the place, and keyboard overlays can be
         seen laying around here and there. I guess they all came out
         of date long ago. There is also a shelf with old program
         listings. One of the binders is marked with 'DCM V7 891012'."
        IF tape AT store THEN
            DESCRIBE tape.
        END IF.

    EXIT east TO cellar.
END LOCATION.

OBJECT tape AT store
    IS
	NOT examinable.
        takeable.
        NOT mounted.
        NOT copied.

    DESCRIPTION
        IF tape IS NOT mounted THEN
	    IF tape AT store THEN
		"On another shelf there is a spool of computer tape."
	    ELSE
		"On the floor a spool of computer tape can be seen."
	    END IF.
        END IF.

    MENTIONED
        "spool of computer tape"

    VERB mount DOES
        IF tape IS mounted THEN
            "It is already mounted."
        ELSIF computer HERE THEN
            "The tape is now securely mounted on the tape drive."
            MAKE tape mounted.
            LOCATE tape HERE.
        ELSE
            "There is nothing here to mount it on."
        END IF.
    END VERB.
END OBJECT.


LOCATION first Name First Floor 
    DESCRIPTION
        "The landing on the first floor is as dirty as all the others.
         Meters and meters of old cables are laying around, leading
         into a room to the east. The stairs leads up and down. They
         still seem alright. Through the dirty windows the barren
         field outside the building can be seen."

    EXIT up TO second.
    EXIT down TO stairs.
    EXIT east TO office.
END LOCATION.

OBJECT book NAME old book AT first
    IS
        takeable.
	readable.

    DESCRIPTION
        "Almost completely covered by dust, there is an old book
         laying on the floor here."

    VERB examine DOES
        "The book looks as if it could fall apart any minute, but on
         the cover the three oval markings, also seen on the outside
         of the building, can barely be recognized. There is also
         something about 'Introduction' and 'Series'-something."
    END VERB.

    VERB read DOES
        "As you carefully try to open the book it falls apart into
         dust and falls to the floor through your fingers."
        LOCATE book AT NOWHERE.
    END VERB.
END OBJECT.


LOCATION office
    DESCRIPTION
        "In front of you is a deserted office area. Desks and chairs
         are piled up in one corner. The ventilation system has partly
         fallen to the floor, tearing part of the ceiling down with
         it. Under the twisted tubing a couple of old coffee makers are
         crushed to pieces. One shelf, having some kind of lettering,
         no longer readable, is thrown to one side, and another is
         still standing in a corner, full of dust."

    EXIT west TO first.
END LOCATION.

OBJECT ladder AT office
    IS
        takeable.
	readable.
        NOT raised.

    DESCRIPTION
        IF ladder IS NOT raised THEN
            "There is a ladder laying on the floor here."
        ELSIF ladder AT holeroom THEN
            "A ladder is raised in the middle of the room, extending
             through the hole in the ceiling."
        END IF.

    MENTIONED
        "3 metre long ladder"

    VERB examine DOES
        "It is a wooden ladder with a few steps missing, but I'm sure
         it could be climbed."
    END VERB.

    VERB read DOES
        "A small platinum plate reads:
	 $i First manufactured by ThoNi in february 1985,
	 $i as a farewell present to all the fellow workers
	 $i at Ericsson with the least bit of imagination.
	 $n$i Later reworked into the Alan Language and has
	 $i since functioned as a test vehicle for that
	 $i language."
    END VERB.

    VERB take
    CHECK ladder NOT AT walless 
        ELSE
            "You are not strong enough to pull the long ladder up through
             the hole."
    DOES
        MAKE ladder NOT raised.
    END VERB.

    VERB raise DOES
        LOCATE ladder HERE.
        IF ladder AT outside THEN
            "There is nothing here to lean it against, so it falls flat
             to the ground."
        ELSIF ladder AT holeroom THEN
            IF ladder IS raised THEN
                "The ladder is already raised through the hole in the
                 ceiling."
            ELSE
                "The ladder is just long enough to reach up through
                 the hole in the ceiling, where it now is standing."
                MAKE ladder raised.
            SCORE 15.
            END IF.
        ELSE
            "The ladder is too long to be raised in this room. It
             meets the ceiling before it can be raised completely, and
             slides down on the floor."
        END IF.
    END VERB.

    VERB climb DOES
        IF ladder IN hero THEN
            "You can't climb the ladder while you are carrying it,
             silly!"
        ELSIF ladder IS NOT raised THEN
            "Who have ever heard about someone trying to climb a
             ladder laying flat on the floor ?!?"
        ELSE
            "The steps of the ladder feels a bit weak, some more than
             others, but you manage to climb all the way without
             falling down."
            IF ladder AT walless THEN
                LOCATE HERO AT holeroom.
            ELSE
                LOCATE HERO AT walless.
            END IF.
            LOCATE ladder HERE.
        END IF.
    END VERB.
END OBJECT.


LOCATION second NAME Second Floor
    DESCRIPTION
        "The second landing of the stairs is well kept through the
         ages. Some rust has gotten a grip on the fence but it is
         still rock steady. The window glass is still present in the
         frames, altough covered with dust so that the sunlight can
         barely be seen through them. There is a doorway to the east."

    EXIT up TO third.
    EXIT down TO first.
    EXIT east TO terminal_room.
END LOCATION.


LOCATION terminal_room NAME Terminal Room
    DESCRIPTION
        "This must be the old terminal room. Old and dusty, most of
         them cracked and broken, off-white computer terminals are
         standing on desks that once were called 'ergonomic'. Nowhere
         can any connections for the terminals be seen. A doorway to
	 the west leads out to the stairs."
        IF terminal AT terminal_room THEN
            DESCRIBE terminal.
        END IF.

    EXIT west TO second.
END LOCATION.

OBJECT terminal AT terminal_room
    IS
        takeable.
	readable.
        NOT connected.
        NOT showing_msg1.
        NOT showing_msg2.

    DESCRIPTION
        IF terminal AT terminal_room THEN
            "One of the terminals seems in much better shape than the
             others."
        ELSE
            "A worn old terminal is standing here."
        END IF.

    MENTIONED
        "rather heavy computer terminal"

    VERB examine DOES
        "It is a computer terminal, with a keyboard. It looks O.K."
        IF terminal IS NOT connected THEN
            "It's not connected anywhere."
        ELSE
            "It is connected to the nearby computer."
        END IF.
        IF terminal IS showing_msg1
        OR terminal IS showing_msg2 THEN
            "There is a message displayed on it."
        END IF.
    END VERB.

    VERB read DOES
        IF terminal IS showing_msg1 THEN
            "The message says: 'Please login. Enter USERID:'"
        ELSIF terminal IS showing_msg2 THEN
            "The message says: 'Enter command:'"
        ELSE
            "The screen is completely blank."
        END IF.
    END VERB.

    VERB take DOES
	MAKE terminal NOT connected.
	MAKE terminal NOT showing_msg1.
	MAKE terminal NOT showing_msg2.
	IF coin IS NOT found THEN
	    "OH! There was a coin under it!"
	    MAKE coin found.
	    LOCATE coin HERE.
	    SCORE 10.
	END IF.
    END VERB.

    VERB connect DOES
        IF computer NOT HERE THEN
            "There is nothing here to connect it to!"
        ELSE
            IF computer IS running THEN
                "The computer notes the presence of the terminal and
                 displays the message 'Please login. Enter USERID:'"
                MAKE terminal showing_msg1.
            ELSE
                "The terminal is now connected to the nearby computer."
            END IF.
            MAKE terminal connected.
            LOCATE terminal HERE.
        END IF.
    END VERB.
END OBJECT.

OBJECT coin NAME small coin
    IS
        takeable.
	readable.
	NOT examinable.
        NOT found.

    DESCRIPTION
        "There is a small coin here."

    VERB read DOES
        "It says '25 �re' and 'F�r Sverige i Tiden'."
    END VERB.

    VERB insert_into
	CHECK s = machine
	    ELSE "It is not possible to insert the $1 in the $2"
	DOES
            "A clinking sound is heared from the machine and a candy
             bar falls out on the floor."
            LOCATE candy HERE.
            LOCATE coin AT NOWHERE.
            SCORE 15.
    END VERB.
END OBJECT.


LOCATION third NAME Third Floor
    DESCRIPTION
        "On the wall here it says 'THIRD FLOOR'. The fence around the
         stairs is probably not to be trusted any longer and the
         stairs themselves are getting weaker. A puddle of water on
         the floor shows that the weather has free access through the
         empty window frames. A whissle by the wind is all that can be
         heared. Foremerly there was an entrance to the east which is
	 now totally blocked."

    EXIT up TO fourth.
    EXIT down TO second.
END LOCATION.


LOCATION fourth NAME Fourth Floor
    DESCRIPTION
        "Even this high up the stairs are intact but the fence and
         railings are gone. Small pieces of glass and rusty metal
         covers the stairs that leads up and down. Be careful where
	 you put your feet! There are doors to the east and to the
	 north."

    EXIT up TO fifth.
    EXIT down TO third.
    EXIT east TO computer_room.
    EXIT north TO holeroom.
END LOCATION.


LOCATION holeroom NAME Windy Room
    DESCRIPTION
        "In the middle of the room is a light spot on the floor. The
         light is comming from a hole in the ceiling. A strong wind
         can be felt comming through the hole. Bricks and stones
         covers the floor. The remains of bird nests can be seen, but
         there are no birds anywhere. Perhaps your entrance scared
         them off."

    EXIT up TO walless
        CHECK ladder IS raised
	    ELSE
                "You can't fly through the hole in the ceiling!"
        DOES
            LOCATE ladder AT walless.
    END EXIT.
    EXIT south TO fourth.
END LOCATION.


LOCATION walless NAME Walless Room
    DESCRIPTION
        "Through the hole in the floor the end of a ladder is
         extending. Three of the walls in this room are missing and
         the wind is strong in your hair and clothes. Piles of bricks
         and wood are everywhere. Far, far below you the field
         surrounding the building can be seen."

    EXIT down TO holeroom
	DOES
            LOCATE ladder AT holeroom.
    END EXIT.
END LOCATION.

OBJECT nest NAME birds nest AT walless
    IS
        takeable.
        NOT examined.

    DESCRIPTION
        IF nest AT walless THEN
            "In one corner, near the remains of one of the walls, a crow
             has built it's nest."
        ELSE
            "A crows nest is placed on the floor. I wonder how it got
             here?!"
        END IF.

    VERB examine DOES
        IF nest IS NOT examined THEN
            "As you turn the nest over for examination, a set of keys
             falls out. Otherwise there is nothing special about the
             nest."
            LOCATE keys HERE.
            MAKE nest examined.
            SCORE 15.
        ELSE
            "It looks like any other empty bird nest."
        END IF.
    END VERB.
END OBJECT.

OBJECT keys
    IS
        takeable.

    DESCRIPTION
        "A set of rusty keys are laying on the floor here."

    MENTIONED
        "set of rusty keys"

    VERB examine DOES
        "The keys are mounted on a ring. One of the keys looks like a
         door key, the other is even more rusty and broken."
    END VERB.
END OBJECT.

LOCATION fifth NAME Fifth Floor
    DESCRIPTION
        "This must be the top of the top landing of the staircase.
         With a pounding heart and breath you look around and see two
         doorways. A small one to the north, and to the east a long
         corridor."

    EXIT down TO fourth.
    EXIT east TO corr.
    EXIT south TO clockroom.
END LOCATION.


LOCATION clockroom NAME Clock Room
    DESCRIPTION
        "The room is so small and low that you can't stand straight."
        DESCRIBE clock.

    EXIT north TO fifth.
END LOCATION.

OBJECT clock AT clockroom
    IS
	readable.
        NOT wound.
        NOT broken.

    DESCRIPTION
        "In one of the walls an elaborate clockwork is mounted."
        IF clock IS NOT broken THEN
            "It is in very good shape it seems."
        ELSE
            "From the clock and through the wall a big spring is
             sticking out."
        END IF.

    VERB examine DOES
        "The clock looks very complex, but there is a big handle for
         winding it."
        IF clock IS broken THEN
            "It looks broken, because through the wall a big spring is
             sticking out."
        END IF.
    END VERB.

    VERB read DOES
        "A tiny little sign says 'Made in Korea'"
    END VERB.

    VERB wind DOES
        IF clock IS NOT wound THEN
            "With a deafening BING BANG the clock begins to chime.
             From the corridor in the south a loud flapping of wings
             is heard."
            MAKE clock wound.
        ELSIF clock IS NOT broken THEN
            "With a twanging sound a big spring chrashes through the
             wall and nearly hits you! I think you broke the clock."
            MAKE clock broken.
        ELSE
            "As you already have broken the clock, turning the handle
             yet again will not have any effect."
        END IF.
    END VERB.
END OBJECT.


LOCATION corr NAME Corridor
    DESCRIPTION
        "A long east-west corridor extends in both directions. There
         are exits in both ends. In the ceiling there are markings
         from claws (BIG CLAWS!!) and the floor is covered with litter
         from bats."

    EXIT east TO deskroom
        CHECK clock IS wound
	    ELSE
		"As soon as you try to move, a tremendous flapping of
		 wings is heard. A giant horde of bats take you by their
		 claws, and carry you out through the window. Your stomac
		 turns inside out as you look down on the ground hundreds
		 of feet below. Fortunately the bats gently put you down
		 outside the building.$p"
		LOCATE HERO AT outside.
    END EXIT.
    EXIT west TO fifth.
END LOCATION.


LOCATION deskroom NAME Small Office
    DESCRIPTION
        "This looks like a small office."
	DESCRIBE desk.
        "A small window lets some light in. The
         wallpaper has nearly all fallen to the floor and the chair is
         only a pile of broken sticks in one corner. Once the room had
         a balcony but I don't recommend using it now since the floor
         is gone. Anyway, it is not possible to get out there
         anymore."

    EXIT west TO corr.
END LOCATION.

OBJECT drawer AT deskroom
    IS
	openable.
        NOT open.
        NOT 'empty'.

    DESCRIPTION
	"There is a drawer in the desk."
        IF drawer IS open THEN
            "It is open."
        END IF.

    VERB examine DOES
        IF drawer IS open THEN
            "The drawer is open."
            IF drawer IS NOT 'empty' THEN
                "In it there is a technical manual."
            END IF.
        END IF.
    END VERB.

    VERB open DOES
        IF drawer IS open THEN
            "The drawer is already open."
        ELSIF manual IS NOT found THEN
            "Pulling out the drawer a manual falls to the floor."
            LOCATE manual HERE.
            SCORE 10.
        ELSE
            "The desk drawer is now open."
        END IF.
        MAKE drawer open.
    END VERB.

    VERB close DOES
       IF drawer IS NOT open THEN
           "The drawer is already closed."
       ELSE
           "The drawer is now closed."
           MAKE drawer NOT open.
       END IF.
    END VERB.
END OBJECT.


OBJECT desk AT deskroom
    IS
	openable.
        NOT marked.

    DESCRIPTION
        "Near the window there is a large desk."
	DESCRIBE drawer.

    VERB examine DOES
        "It is an old desk, made from oak. The top is completely
         covered by dust"
        IF desk IS marked THEN
            "that shows markings from fingers."
        ELSE
            "where your fingers leave markings."
            MAKE desk marked.
        END IF.
        "The desk has one remaining drawer."
        IF drawer IS open THEN
            "The drawer is open."
            IF drawer IS NOT 'empty' THEN
                "In it there is a technical manual."
            END IF.
        END IF.
    END VERB.

    VERB open DOES
        IF drawer IS open THEN
            "The drawer is already open."
        ELSIF manual IS NOT found THEN
            "Pulling out the drawer a manual falls to the floor."
            LOCATE manual HERE.
            SCORE 10.
        ELSE
            "The desk drawer is now open."
        END IF.
        MAKE drawer open.
    END VERB.

    VERB close DOES
       IF drawer IS NOT open THEN
           "The drawer is already closed."
       ELSE
           "The drawer is now closed."
           MAKE drawer NOT open.
       END IF.
    END VERB.
END OBJECT.

OBJECT manual NAME dirty technical manual
    IS
        takeable.
	readable.
        NOT found.
    HAS
	pwindex 0.
        password "".
	pwtry "".

    DESCRIPTION
        "There is a dirty technical manual here."

    MENTIONED
        "dirty manual"

    VERB examine DOES
        "The manual is dusty and the faded text is difficult to read."
    END VERB.

    VERB read DOES
        "The text inside the manual reads:$i'You login by typing your
         Userid, and...' $i'... command is executed by typing it's
         name.' and $i'The INFO command lists available commands.'
	 $pThe rest is unfortunately completely illegible.
	 $pOOH! There is a hand written remark in the margin here,
	 it says '$$"
	IF pwindex OF manual = 0 THEN
	    SET pwindex OF manual TO RANDOM 1 TO 3.
	END IF.
	IF pwindex OF manual = 1 THEN
	     SET password OF manual TO "NilGu".
	ELSIF pwindex OF manual = 2 THEN
	     SET password OF manual TO "SveGr".
	ELSIF pwindex OF manual = 3 THEN
	     SET password OF manual TO "OscSv".
	END IF.
	SAY password OF manual. "$$'."
	IF pwtry OF manual = password OF manual THEN
	    "$pFunny, isn't that what you tried earlier..."
	END IF.
    END VERB.
END OBJECT.


LOCATION computer_room NAME Computer Room
    DESCRIPTION
        "A room of old computers, cables, disk drives, tape stations
         and floppy disks are spread out all over the floor. The exit
	 is to the west."

    EXIT west TO fourth.
END LOCATION.

OBJECT computer AT computer_room
    IS
	startable.
        NOT running.
        NOT popped.

    DESCRIPTION
        "An ancient computer is standing in the centre of the room."
        IF computer IS running THEN
            "It's powered up and running."
        END IF.

    VERB examine DOES
        "The computer is mounted in a cabinet, about one metre high.
         The power cord leads to an outlet in the wall."
        IF computer IS NOT running AND computer IS NOT popped THEN
            "Perhaps with luck it could be started."
        ELSIF computer IS running THEN
            "The twinkling front panel lights indicate that it is
             running."
        END IF.
        IF tape IS mounted THEN
            "On the tape drive a tape is mounted."
        ELSE
            "In the cabinet there is also an empty tape drive."
        END IF.
        IF terminal IS connected THEN
            "A terminal is connected to the computer."
        ELSE
            "There is an empty connection for a terminal or console on
             the front of the computer."
        END IF.
    END VERB.

    VERB kick DOES
        IF computer IS NOT running AND computer IS NOT popped THEN
            "Surprisingly. the old computer starts to whirr, the front
             panel lights begins to twinkle frantically, and the
             computer starts up."
            MAKE computer running.
            SCORE 15.
            IF terminal IS connected THEN
                "The connected terminal displays the message 'Please
                 login. Enter USERID:'"
                MAKE terminal showing_msg1.
            END IF.
        ELSIF computer IS running THEN
            "Careful, it may break!"
        ELSE
            "I'm sorry, but it is gone forever."
        END IF.
    END VERB.

    VERB 'start' DOES ONLY
	"The power cord is connected to the outlet and the power
	switch is on, but the computer still will not start.
	Perhaps this is not the way to get it running!"
    END VERB 'start'.

END OBJECT.


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

LOCATION cafe
    DESCRIPTION
        "This is the entrance to the old cafeteria. The kitchen and
         all the furniture is long gone, but there is still some paper
         boxes and old plates here."
         DESCRIBE machine.

    EXIT west TO hall.
END LOCATION.

OBJECT machine NAME vending machine AT cafe
    IS
	readable.

    DESCRIPTION
        "In one corner of the cafeteria there is a vending machine. It
         seems to be working. At least the little light inside is on,
         showing some candy."

    VERB examine DOES
        "Most of the slots are empty, but there is some candy still in
         there. A slot for coins and a small sign is also mounted on
         the machine."
    END VERB.

    VERB read DOES
        "The small sign on the machine says 'Insert coin'."
    END VERB.
END OBJECT.

OBJECT candy NAME old mouldy candy bar
    IS
        takeable.
	readable.

    DESCRIPTION
        "On the floor there is a candy bar."

    VERB examine DOES
        "The candy bar is some centimetres long and covered in brown
         paper."
    END VERB.

    VERB read DOES
        "The candy is very old and the text on the paper is no longer
         readable."
    END VERB.

    VERB eat DOES
        "The candy bar tastes very old, mouldy and stale."
        LOCATE candy AT NOWHERE.
    END VERB.

    VERB drop
      DOES
        IF rats HERE THEN
            "The rats throw themselves at the candy devouring it
             furiously, nearly killing each other. When every little
             bit is gone they all fall asleep in the sunshine."
            MAKE rats NOT hungry.
            LOCATE candy AT NOWHERE.
            SCORE 5.
        END IF.
    END VERB.
END OBJECT.


ACTOR hero
    CONTAINER
        LIMITS
	    COUNT 3 THEN "You can't carry anything more."
        HEADER "You are carrying"
        ELSE "You are empty-handed."
END ACTOR.


START AT outside.

    "$pWelcome to the game of SAVIOUR!$pIn this game your mission
     is to salvage the last copy of the famous ADVENTURE game.
     Legends have it that somewhere inside an ancient building
     the last copy of this game is still spinning on some old disks.
     $pIf you need help just type 'help'.$pSo go forth and be the
     salvaging hero of all Adventurers!$p$pThis game was produced
     with the ALAN Adventure Development System and is brought to
     you by ThoNi&GorFo Adventure Factories."

    VISITS 2.