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TurboForth: Hunt the Wumpus


Willsy
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Here's a very very old game: Hunt the Wumpus. I think this game was originally developed in the early 70's and ran on most mini-computers of the day. Here's a version for TurboForth, ported from ANS Forth. Attribution for the original is contained in the source. Just paste it into Classic99 and type GAME. I think it works. I've never played it before, so dunno! Seems okay though!

 

 

( Hunt the Wumpus - JCB 16:42 01/15/11)
( Converted for Forth-83 - Mark Wills August 2015 )
( from ANS code written by James Bowman. )
( Original program here: )
( http://excamera.com/sphinx/article-wumpus.html#wumpus )
(   Changes: )
(     definition RANDOM removed. Not needed for Turboforth )
(     defintion @+ removed - TurboForth has @++ )
(     definition 2VARIABLE added )
(     definition 2@ added )
(     definition 2! added )
decimal
 
: 2variable ( execution: a-addr )
  \ MRW 5th August 2015
  create 0 , 0 , ;
 
: 2@ ( a-addr -- x1 x2 )
  \ MRW 5th August 2015
  dup 2+ @ swap @ ;
: 2! ( x1 x2 a-addr -- )
  \ MRW 5th August 2015
  swap over ! 2+ ! ;
 
: m 1- , ; \ original map was 1-based, we are 0-based
: triples create does> swap 3 * cells + ;
triples map ( r -- addr ) \ address of room r
2 m 5 m 8 m 1 m 3 m 10 m 2 m 4 m 12 m 3 m 5 m 14 m 1 m 4 m 6 m
5 m 7 m 15 m 6 m 8 m 17 m 1 m 7 m 9 m 8 m 10 m 18 m 2 m 9 m 11 m
10 m 12 m 19 m 3 m 11 m 13 m 12 m 14 m 20 m 4 m 13 m 15 m 6 m 14 m 16 m
15 m 17 m 20 m 7 m 16 m 18 m 9 m 17 m 19 m 11 m 18 m 20 m 13 m 16 m 19 m
20 m 20 m 20 m \ impossible room for lost arrow
: randroom ( -- n )
 20 rnd ;
variable you
variable wumpus
2variable pits
2variable bats
: bounds ( a n -- a+n a )
 over + swap ;
: exits ( u -- u0 u1 u2 ) \ exits for room u
    map @++ swap @++ swap @ ;
 
: isexit ( e r -- f) \ is e an exit for room r
    map
    2dup @ = >r cell+
    2dup @ = >r cell+
    @ = r> or r> or ;
 
: nearyou ( r -- f ) \ is room r next to player
    you @ isexit ;
 
: 2nearyou ( r0 r1 -- f ) \ is either room next to player
    >r nearyou r> nearyou or ;
 
: atyou ( r -- f ) \ is player at room r
    you @ = ;
 
: 2atyou ( r0 r1 -- f ) \ is player at room
    >r atyou r> atyou or ;
 
: getroom ( -- n ) \ input room number from console
 tib @ 5 expect
 bl word number drop ;
: warn ( addr u f -- ) \ if f, type line addr,u
    if cr type else 2drop then ;
variable gameover
: endgame ( addr u -- )
    cr type true gameover ! ;
 
: losegame ( addr u -- )
    endgame
    cr ." HA HA HA - YOU LOSE!" ;
 
: wingame ( addr u -- )
    endgame
    cr ." HEE HEE HEE - THE WUMPUS'LL GETCHA NEXT TIME!!" ;
: wakewumpus ( -- )
    4 rnd dup 3 = if
        drop \ wumpus stays
    else
        \ wumpus moves
        cells wumpus @ map + @ wumpus !
    then
    wumpus @ atyou if
        s" TSK TSK TSK- WUMPUS GOT YOU!" losegame
    then
;
: moveplayer ( r -- c ) \ move player to room r, check for hazards
    you !
    wumpus @ atyou if
        cr ." OOPS! BUMPED A WUMPUS"
        wakewumpus
    then
    pits 2@ 2atyou if
        s" YYYIIIIEEEE . . . FELL IN PIT" losegame
    then
    bats 2@ 2atyou if
        cr ." ZAP--SUPER BAT SNATCH! ELSEWHEREVILLE FOR YOU!"
        randroom recurse
    then
;
: domove
    begin
        cr ." Where to? " getroom
        dup nearyou 0=
    while
        cr ." -Not possible"
    repeat
    moveplayer
;
: doshoot
    begin
        cr ." No. of rooms (1-5) "
        getroom
        dup 1 6 within
    until
    you @ swap \ arrow position on stack
    0 do
        cr ." ROOM #" i . ." ? "
        getroom 2dup isexit
        if nip else 2drop 20 then
        wumpus @ over = if
            s" AHA! YOU GOT THE WUMPUS!" wingame
        then
    loop
    gameover @ 0= if
        cr ." Missed"
    then
    drop
;
: upper ( a -- a|a-32) \ convert a character to upper case
    dup 96 > if 32 - then ;
: pick1 ( k0 k1 -- k ) \ wait for key k0 or k1
    begin
        key upper >r
        over r@ = over r@ = or
    until
;
: gameloop
    cr
    s" I smell a Wumpus!" wumpus @ nearyou warn
    s" I feel a draft!" pits 2@ 2nearyou warn
    s" Bats nearby!" bats 2@ 2nearyou warn
    cr ." You are in room " you @ .
    cr ." Tunnels lead to " you @ exits . . .
    cr ." Shoot or move (S-M)? "
    begin
        key upper dup ascii M = over ascii S = or
    until
    dup emit ascii M = if
        domove
    else
        doshoot wakewumpus
    then
;
: cheat
    cr ." you " you @ .
    ." wumpus " wumpus @ .
    ." bats " bats 2@ . .
    ." pits " pits 2@ . .
;
: setup
    20 0 do i loop
    50 0 do
        randroom roll
    loop
    you ! wumpus ! bats 2! pits 2!
    14 0 do drop loop
;
: wait ( -- ) \ wait for key and clear screen
  0 23 gotoxy ." Press any key..."
  begin key? -1 > until page ;
: instructions
0 gmode
cr ." WELCOME TO 'HUNT THE WUMPUS'" cr
cr ." The wumpus lives in a cave of 20 rooms. "
   ." Each room has 3 tunnels leading to other"
   ." rooms. (look at a dodecahedron to see   "
   ." how this works - if you don't know what "
   ." a dodecahedron is, ask someone!)" cr
cr ." HAZARDS:" cr
   ." *BOTTOMLESS PITS: two rooms have bottom-"
   ." less pits in them. If you go there, you "
   ." fall into the pit (& lose!)" cr cr
   ." * SUPER BATS: two other rooms have super"
   ." bats. if you go there, a bat grabs you  "
   ." and takes you to some other room at     "
   ." random. (which might be troublesome!)" cr
wait
   ." * WUMPUS: the wumpus is not bothered by "
   ." the hazards (he has sucker feet and is  "
   ." too big for a bat to lift). Usually he  "
   ." is asleep. Two things wake him up: your "
   ." entering his room or your shooting an   "
   ." arrow. If the wumpus wakes, he moves one"
   ." room or stays still. After that, if he  "
   ." is where you are, he eats you up and you"
   ." lose!" cr
wait
   ." ABOUT YOU:" cr
   ." Each turn you may move or shoot an arrow"
   ." MOVING: you can go one room [thru one   "
   ." tunnel)." cr
   ." ARROWS: you have 5 arrows. You lose when"
   ." you run out. Each arrow can go from 1 to"
   ." 5 rooms. You aim by telling the computer"
   ." the number of rooms you want the arrow  "
   ." to go to. If the arrow can't go that way"
   ." [ie no tunnel) it moves at ramdom to the"
   ." next room. If the arrow hits the wumpus,"
   ." you win. If the arrow hits you...."
wait
   ." WARNINGS:"
cr ." When you are one room away from wumpus  "
   ." or hazard, the computer says:" cr
   ." Wumpus:  'i smell a wumpus'" cr
   ." Bat:     'bats nearby'" cr
   ." Pit:     'i feel a draft'"
wait
;
: yesno ( addr u -- f )
    cr type
    begin
        key upper dup ascii Y = over ascii N = or
    until
    dup emit ascii Y =
;
: game
    s" INSTRUCTIONS (Y-N) ? " yesno if
    instructions
    then
    begin
        setup
        0 gameover !
        begin
            gameloop
            gameover @
        until
        s" Play again (Y-N) ? " yesno 0=
    until
;

 

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Hi Willsy,

 

that sounds cool :)

 

By using Classic99 v382 he tells me "GAME not found"....

As I am oblivious to Forth, do you have any idea ?

 

 

attachicon.gifturbo-wump.JPG

 

You did not get the “ok:n” after pasting the code and before executing it because you did not tap <enter>. Just entering a space before typing GAME would have worked, as well. Because there is no space or <enter> between ; (which would have completed the definition of game ), and your typing of GAME to start the game, you inadvertently asked the interpreter to look up the word ;GAME , which, of course, it didn't find, because that word was never defined. When you paste code like this, you often need to finish the process by tapping <enter> to get the last line interpreted. In this case, ; was not interpreted before you typed GAME .

 

...lee

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ah, one more hint, maybe my my forth is somehow "broken", or not complete ?

 

 

 

attachicon.gifTurboForth-Block-1-error.JPG

 

 

 

It's web browsers screwing up copy and paste again, I think.

 

Open up this text file in your text editor. wumpus.txt Press CTRL and A then press CTRL C to copy it, then click on Edit then Paste in the Classic99 window.

 

That should do it.

 

And yes, it looks like you have a missing file. There should be a file called BLOCKS in your DSK1 folder (Look in your Classic99 folder, then look for the DSK1 folder, and check in there).

 

Here is the file BLOCKS.zip

 

Have fun!

Edited by Willsy
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ah-maze-ing - it works now :) thanks Lee.

 

I have to do more on your lessons, really

but time is my enemy these days....

 

 

Truer words were never spoken. It sucks. I bought a cartridge and had a book printed up, and cannot find time to get to them. Hopefully this winter...

 

.... and since I don't have time to check for myself, I'll just ask... will this work in fbForth?

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Truer words were never spoken. It sucks. I bought a cartridge and had a book printed up, and cannot find time to get to them. Hopefully this winter...

 

.... and since I don't have time to check for myself, I'll just ask... will this work in fbForth?

 

 

 

Not without some (very minor) changes. Lee is the man for that!

 

I was waiting for the prompting, especially from you, @Willsy, because I hate co-opting your code all the time. |:)

 

...lee

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yep, and I ate the Wumpus :)

 

The BLOCKS-file existed, but was from 2013. So I´ve overwritten it.

But the solution was to set DSK1 back to FIAD, and to the referring folder :)

 

Once I make it all right, it all works :)

also have to check my brandnew fbForth-cart now :)

 

thanks

 

 

 

post-41141-0-04171500-1440001325_thumb.jpg

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Here's a very very old game: Hunt the Wumpus. I think this game was originally developed in the early 70's and ran on most mini-computers of the day. Here's a version for TurboForth, ported from ANS Forth. Attribution for the original is contained in the source. Just paste it into Classic99 and type GAME. I think it works. I've never played it before, so dunno! Seems okay though!

\ .
\ .
\ .
: doshoot
    begin
        cr ." No. of rooms (1-5) "
        getroom
        dup 1 6 within
    until
    you @ swap \ arrow position on stack
    0 do
        cr ." ROOM #" i . ." ? "
        getroom 2dup isexit
        if nip else 2drop 20 then
        wumpus @ over = if
            s" AHA! YOU GOT THE WUMPUS!" wingame LEAVE
        then
    loop
    gameover @ 0= if
        cr ." Missed"
    then
    drop
;
\ .
\ .
\ .

 

 

There should be a LEAVE after wingame in doshoot to leave the loop. Getting more “Room #i ? ” prompts after you win is confusing.

 

...lee

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Cool - I ported it as is, so I assumed it was working okay... Perhaps it's bugged. I can't imagine that my changes would introduce any bugs - but thanks for sticking with it - I wasn't expecting all this extra bug-hunting!

:thumbsup:

 

Well, I just noticed at the end of various games that the stack was getting polluted and I just needed to run the culprit(s) to ground. :grin:

 

...lee

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Here are the changes for domove and doshoot and gameloop :

 

 

 

: domove
    begin
        cr ." Where to? " getroom
        dup nearyou 0=
    while
        drop   ( drop bad room)
        cr ." -Not possible"
    repeat
    moveplayer
;
: doshoot
    1    ( put something on stack for next DROP)
    begin
        drop   ( remove last entry)
        cr ." No. of rooms (1-5) "
        getroom
        dup 1 6 within
    until
    you @ swap \ arrow position on stack
    0 do
        cr ." ROOM #" i . ." ? "
        getroom 2dup isexit
        if nip else 2drop 20 then
        wumpus @ over = if
            s" AHA! YOU GOT THE WUMPUS!" wingame
            leave    ( we're done with the loop)
        then
    loop
    gameover @ 0= if
        cr ." Missed"
    then
    drop
;
: gameloop
    cr
    s" I smell a Wumpus!" wumpus @ nearyou warn
    s" I feel a draft!" pits 2@ 2nearyou warn
    s" Bats nearby!" bats 2@ 2nearyou warn
    cr ." You are in room " you @ .
    cr ." Tunnels lead to " you @ exits . . .
    cr ." Shoot or move (S-M)? "
    begin
        key upper dup ascii M = over ascii S = or
    until
    dup emit ascii M = if
        domove
    else
        doshoot 
        gameover @ 0= if wakewumpus then ( only if game not over)
    then
;

 

 

 

...lee

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