Refactoring finished.
This commit is contained in:
parent
c2d2ac3088
commit
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442
kekkonen.scm
442
kekkonen.scm
@ -1,437 +1,9 @@
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(import srfi-1)
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(import srfi-14)
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(import (chicken io))
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(import srfi-13)
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(import matchable)
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(import fmt)
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(import fmt-color)
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(import fmt-unicode)
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(import ansi-escape-sequences)
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(import (chicken file))
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(import breadline)
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(import ncurses)
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(import util)
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(import util)
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(import lisp)
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(import lisp)
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(import parse)
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(import parse)
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(import io)
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(import io)
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(import database)
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(import database)
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(import world)
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(define (type-of elem)
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(cond ((pair? elem) 'pair)
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((symbol? elem) 'symbol)
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((number? elem) 'number)
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((char? elem) 'char)
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((string? elem) 'string)
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((boolean? elem) 'boolean)))
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(define (get-location object)
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(database-get object 'location #f))
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(define (set-name object name)
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(database-set object 'name name))
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(define (set-description object description)
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(database-set object 'description description))
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(define (get-name object)
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(database-get object 'name (symbol->string object)))
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(define (get-description object)
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(database-get object 'description "You see the swirling void of creation."))
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(define (get-container object)
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(database-get object 'container #f))
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(define (get-contents object)
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(database-get object 'contents '()))
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(define (set-destination object destination)
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(database-set object 'destination destination))
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(define (get-destination object)
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(database-get object 'destination #f))
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(define (set-enter-message object msg)
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(database-set object 'enter-message msg))
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(define (get-enter-message object)
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(database-get object 'enter-message #f))
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(define (get-aliases object)
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(database-get object 'aliases '()))
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(define (set-aliases object alias-list)
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(database-set object 'aliases alias-list))
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(define (add-alias object alias)
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(let ((aliases (get-aliases object)))
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(if (not (member alias aliases))
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(set-aliases object (cons alias aliases)))))
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(define (remove-alias object alias)
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(let ((aliases (get-aliases object)))
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(if (member alias aliases)
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(set-aliases object (remove (curry eq? alias) aliases)))))
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(define (set-hidden object value)
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(database-set object 'hidden value))
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(define (get-hidden object)
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(database-get object 'hidden #f))
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(define (set-fixed object value)
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(database-set object 'fixed value))
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(define (get-fixed object value)
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(database-get object 'hidden #f))
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(define (get-put-message object)
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(database-get object 'put-message "You put the ~a into the ~a."))
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;; Is development mode enabled?
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(define (devmode-enabled?)
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(has-property? 'you 'devmode))
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(define (toggle-devmode)
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(toggle-flag 'you 'devmode))
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;; Is an object fixed in place (e.g. cannot be picked up?)
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(define (fixed? object)
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(has-property? object 'fixed))
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(define (toggle-fixed object)
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(toggle-flag object 'fixed))
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;; Match a tag against a list of objects, checking for its tag and its aliases.
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(define (match-object tag objects)
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(let loop ((objects objects))
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(if (null? objects)
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#f
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(let ((taglist (cons (car objects) (get-aliases (car objects)))))
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(if (member tag taglist)
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(car objects)
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(loop (cdr objects)))))))
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(define (create-object tag name description)
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(set-name tag name)
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(set-description tag description))
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(define (move-object object container)
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(let ((prev-container (get-container object)))
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(database-set object 'container container)
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(let ((contents (get-contents container)))
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(if (not (member object contents))
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(begin
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(database-set container 'contents (cons object contents))
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(database-set prev-container 'contents (remove (curry eq? object) (get-contents prev-container))))))))
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;; Determine the objects visible to a source object, zork-style
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(define (visible-objects source)
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(let ((result (get-container source)))
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(if (and result (object-exists? result))
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(cons (get-container source) (get-contents (get-container source)))
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(error "Tried to determine visible objects for object without a container."))))
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(define (print-room-description room)
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(newline)
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(display (set-text '(bold) (get-name room)))
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(if (devmode-enabled?) (display (set-text '(bold fg-green) (string-append " [" (symbol->string room) "]"))))
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(newline)
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(display " ")
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(fmt #t (dsp (wrap-lines (get-description room))))
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(newline)
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(display "You see: ")
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(map (lambda (n) (if (not (get-hidden n)) (begin (display (get-name n)) (display " ") (if (devmode-enabled?) (begin (display (set-text '(bold fg-green) (string-append "[" (symbol->string n) "] ")))))))) (remove (curry eq? 'you) (get-contents room)))
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(newline))
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(define (do-command-enter tag)
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You cannot go that way.")
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(let ((destination (get-destination object)))
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(if (not destination)
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(show "You cannot enter that.")
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(begin
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(move-object 'you destination)
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(perhaps show (get-enter-message object))
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(print-room-description (get-container 'you))))))))
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(define (do-command-save)
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(let ((save-name (prompt-default "Enter save name: " "kekkonen.sav")))
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(if (or (not (file-exists? save-name)) (prompt-yn "That file already exists. Overwrite? "))
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(begin
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(show "Saving database, please wait...")
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(database-save save-name)
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(show "Done.")))))
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(define (do-command-load)
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(let ((save-name (prompt-default "Enter save file name to load: " "kekkonen.sav")))
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(if (not (file-exists? save-name))
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(show "That file does not exist.")
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(begin
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(show "Loading database, please wait...")
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(database-load save-name)
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(show "Done.")))))
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(define (do-command-look)
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(print-room-description (get-container 'you)))
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(define (do-command-examine tag)
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You cannot see that here.")
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(show (get-description object)))))
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(define (do-command-inventory)
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(map (compose show get-name) (get-contents 'you)))
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(define (do-command-take tag)
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(if (not (symbol? tag))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (if (devmode-enabled?)
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(get-all-objects)
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(visible-objects 'you)))))
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(if (or (not object) (and (fixed? object) (not (devmode-enabled?))))
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(if object
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(show "That is fixed in place.")
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(show "You cannot see that here."))
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(begin
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(show (string-append "You get " (get-name object) "."))
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(move-object object 'you))))))
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(define (do-command-drop tag)
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(if (not (symbol? tag))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (get-contents 'you))))
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(if (not object)
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(show "You are not carrying that.")
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(begin
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(show (string-append "You drop " (get-name object) "."))
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(move-object object (get-container 'you)))))))
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(define (do-command-put tag destination-tag)
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(let ((object (match-object tag (get-contents 'you))))
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(if (not object)
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(show "You are not carrying that.")
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(let ((destination-object (match-object destination-tag (visible-objects 'you))))
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(if (not destination-object)
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(show "You cannot see that here.")
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(move-object object (get-destination destination-object)))))))
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(define (do-command-devmode)
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(toggle-devmode)
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(if (devmode-enabled?)
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(show "Development mode enabled.")
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(show "Development mode disabled.")))
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(define (do-command-create tag name description)
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(if (not (and (symbol? tag) (string? name) (string? description)))
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(show "I didn't quite understand that.")
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(if (object-exists? tag)
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(show "That object already exists.")
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(begin
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(create-object tag name description)
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(move-object tag (get-container 'you))))))
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(define (do-setter-command tag value type? setter)
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(if (not (and (symbol? tag) (type? value)))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You can't see that here.")
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(begin
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(setter object value)
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(show "You set a value."))))))
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(define (do-command-rename tag name)
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(do-setter-command tag name string? set-name))
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(define (do-command-describe tag description)
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(do-setter-command tag description string? set-description))
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(define (do-command-flag tag flag)
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(if (not (and (symbol? tag) (symbol? flag)))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You can't see that here.")
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(begin
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(case flag
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((fixed) (set-fixed object #t))
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((hidden) (set-hidden object #t))
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(else (show "Invalid flag name."))))))))
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(define (do-command-unflag tag flag)
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(if (not (and (symbol? tag) (symbol? flag)))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You can't see that here.")
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(begin
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(case flag
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((fixed) (set-fixed object #f))
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((hidden) (set-hidden object #f))
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(else (show "Invalid flag name."))))))))
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(define (do-command-alias tag alias)
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(if (not (and (symbol? tag) (symbol? alias)))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You can't see that here.")
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(begin
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(add-alias object alias)
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(show "You add an alias."))))))
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(define (do-command-unalias tag alias)
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(if (not (and (symbol? tag) (symbol? alias)))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You can't see that here.")
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(begin
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(remove-alias object alias)
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(show "You remove an alias."))))))
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(define (do-command-destroy tag)
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(if (not (symbol? tag))
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(show "I didn't quite understand that.")
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(database-remove tag)))
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(define (do-command-aliases tag)
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(if (not (symbol? tag))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You can't see that here.")
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(begin
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(newline)
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(map (lambda (x) (display x) (display " ")) (get-aliases object))
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(newline))))))
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(define (do-command-message tag message-tag message)
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(if (not (and (symbol? tag) (symbol? message-tag) (string? message)))
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(show "I didn't quite understand that.")
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(let ((object (match-object tag (visible-objects 'you))))
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(if (not object)
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(show "You can't see that here.")
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(case message-tag
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((enter) (set-enter-message object message))
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(else (show "Invalid message name.")))))))
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(define (do-command-goto tag)
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(if (not (symbol? tag))
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(show "I didn't quite understand that.")
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(begin
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(move-object 'you tag)
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(print-room-description (get-container 'you)))))
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(define +cardinal-sets+
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'((north n)
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(northeast ne north-east)
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(east e)
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(southeast se south-east)
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(south s)
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(southwest sw south-west)
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(west w)
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(northwest nw north-west)
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(up u)
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(down d)))
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(define +cardinal-opposites+
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'((north . south)
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(northeast . southwest)
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(east . west)
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(southeast . northwest)
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(south . north)
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(southwest . northeast)
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(west . east)
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(northwest . southeast)
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(up . down)
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(down . up)))
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(define (get-cardinal-set direction)
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(find (curry member direction) +cardinal-sets+))
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(define (get-cardinal-aliases direction)
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(perhaps (curry remove (curry eq? direction)) (get-cardinal-set direction)))
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(define (cardinal-direction? direction)
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(list? (member direction (flatten +cardinal-sets+))))
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(define (get-inverse-direction direction)
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(perhaps cdr (assoc direction +cardinal-opposites+)))
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(define (get-canonical-cardinal-direction-name direction)
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(perhaps car (get-cardinal-set direction)))
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(define (do-command-dig direction destination)
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(if (not (and (symbol? direction) (symbol? destination)))
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(show "I didn't quite understand that.")
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(if (not (cardinal-direction? direction))
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(show "You must specify a compass rose direction or up and down.")
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(let ((canonical-direction (get-canonical-cardinal-direction-name direction)))
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(let ((exit-tag (compose-symbols canonical-direction (get-container 'you) destination)))
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(if (object-exists? exit-tag)
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(show "An exit like that already exists.")
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(begin
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(move-object exit-tag (get-container 'you))
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||||||
(set-hidden exit-tag #t)
|
|
||||||
(set-destination exit-tag destination)
|
|
||||||
(map (curry add-alias exit-tag) (get-cardinal-set direction))
|
|
||||||
(show "You create a passage."))))))))
|
|
||||||
|
|
||||||
(define (do-command-exit)
|
|
||||||
(show "Goodbye, see you later...")
|
|
||||||
(set! *exit-adventure* #t))
|
|
||||||
|
|
||||||
(define (alias-transform input)
|
|
||||||
(match input
|
|
||||||
(('quit) '(exit))
|
|
||||||
(('i) '(inventory))
|
|
||||||
(('inv) '(inventory))
|
|
||||||
(('look x) `(examine ,x))
|
|
||||||
(('go x) `(enter ,x))
|
|
||||||
(('get x) `(take ,x))
|
|
||||||
((x) (if (cardinal-direction? x)
|
|
||||||
`(enter ,x)
|
|
||||||
input))
|
|
||||||
(_ input)))
|
|
||||||
|
|
||||||
(define (dispatch-command input)
|
|
||||||
(let ((success #t))
|
|
||||||
(match input
|
|
||||||
(('look) (do-command-look))
|
|
||||||
(('save) (do-command-save))
|
|
||||||
(('load) (do-command-load))
|
|
||||||
(('devmode) (do-command-devmode))
|
|
||||||
(('exit) (do-command-exit))
|
|
||||||
(('enter x) (do-command-enter x))
|
|
||||||
(('take x) (do-command-take x))
|
|
||||||
(('drop x) (do-command-drop x))
|
|
||||||
(('inventory) (do-command-inventory))
|
|
||||||
(('examine x) (do-command-examine x))
|
|
||||||
(('put x y) (do-command-put x y))
|
|
||||||
(_ (if (devmode-enabled?)
|
|
||||||
(match input
|
|
||||||
(('create x y z) (do-command-create x y z))
|
|
||||||
(('rename x y) (do-command-rename x y))
|
|
||||||
(('describe x y) (do-command-describe x y))
|
|
||||||
(('dig x y) (do-command-dig x y))
|
|
||||||
(('flag x y) (do-command-flag x y))
|
|
||||||
(('unflag x y) (do-command-unflag x y))
|
|
||||||
(('alias x y) (do-command-alias x y))
|
|
||||||
(('unalias x y) (do-command-unalias x y))
|
|
||||||
(('destroy x) (do-command-destroy x))
|
|
||||||
(('aliases x) (do-command-aliases x))
|
|
||||||
(('message x y z) (do-command-message x y z))
|
|
||||||
(('goto x) (do-command-goto x))
|
|
||||||
(_ (set! success #f)))
|
|
||||||
(set! success #f))))
|
|
||||||
success))
|
|
||||||
|
|
||||||
(create-object 'garden "A Well-Kept Garden" "A french-style garden with topiary in the shape of various animals. A fountain gurgles happily in the middle. A trail leads off into a forest to the north.")
|
(create-object 'garden "A Well-Kept Garden" "A french-style garden with topiary in the shape of various animals. A fountain gurgles happily in the middle. A trail leads off into a forest to the north.")
|
||||||
(create-object 'unicorn "a frolicking unicorn" "A white unicorn, with a long spiral horn.")
|
(create-object 'unicorn "a frolicking unicorn" "A white unicorn, with a long spiral horn.")
|
||||||
@ -448,17 +20,5 @@
|
|||||||
(set-destination 'trail 'forest)
|
(set-destination 'trail 'forest)
|
||||||
(move-object 'unicorn 'garden)
|
(move-object 'unicorn 'garden)
|
||||||
|
|
||||||
(define *exit-adventure* #f)
|
|
||||||
|
|
||||||
(define (adventure)
|
|
||||||
(let ((success (dispatch-command (alias-transform (adventure-prompt)))))
|
|
||||||
(if (not success)
|
|
||||||
(begin
|
|
||||||
(show "I didn't quite understand that.")
|
|
||||||
(adventure))
|
|
||||||
(if *exit-adventure*
|
|
||||||
(show "Exiting..."); (display *database*)
|
|
||||||
(adventure)))))
|
|
||||||
|
|
||||||
(print-room-description (get-container 'you))
|
(print-room-description (get-container 'you))
|
||||||
(adventure)
|
(adventure)
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user