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wumpus.lisp
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wumpus.lisp
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(in-package :cl-user)
(defpackage lol.wumpus
(:use :cl :prove))
(in-package :lol.wumpus)
;; TODO: (load "graph-util")
(defparameter *congestion-city-nodes* nil)
(defparameter *congestion-city-edges* nil)
(defparameter *visited-nodes* nil)
(defparameter *node-num* 30 )
(defparameter *edge-num* 45)
(defparameter *worm-num* 3)
(defparameter *cop-odds* 15)
(defun random-node ()
(1+ (random *node-num*)))
(defun edge-pair (a b)
(unless (eql a b)
(list (cons a b) (cons b a))))
(defun make-edge-list ()
(apply #'append (loop repeat *edge-num*
collect (edge-pair (random-node) (random-node)))))
(defun direct-edges (node edge-list)
(remove-if-not (lambda (x)
(eql (car x) node))
edge-list))
(defun get-connected (node edge-list)
(let ((visited nil))
(labels ((traverse (node)
(unless (member node visited)
(push node visited)
(mapc (lambda (edge)
(traverse (cdr edge)))
(direct-edges node edge-list)))))
(traverse node))
visited))
(defun find-islands (nodes edge-list)
(let ((islands nil))
(labels ((find-island (nodes)
(let* ((connected (get-connected (car nodes) edge-list))
(unconnected (set-difference nodes connected)))
(push connected islands)
(when unconnected
(find-island unconnected)))))
(find-island nodes))
islands))
(defun connect-with-bridges (islands)
(when (cdr islands)
(append (edge-pair (caar islands) (caadr islands))
(connect-with-bridges (cdr islands)))))
(defun connect-all-islands (nodes edge-list)
(append (connect-with-bridges (find-islands nodes edge-list)) edge-list))
(defun make-city-edges ()
(let* ((nodes (loop for i from 1 to *node-num*
collect i))
(edge-list (connect-all-islands nodes (make-edge-list)))
(cops (remove-if-not (lambda (x)
(zerop (random *cop-odds*)))
edge-list)))
(add-cops (edges-to-alist edge-list) cops)))
(defun edges-to-alist (edge-list)
(mapcar (lambda (node1)
(cons node1
(mapcar (lambda (edge)
(list (cdr edge)))
(remove-duplicates (direct-edges node1 edge-list)
:test #'equal))))
(remove-duplicates (mapcar #'car edge-list))))
(defun add-cops (edge-alist edges-with-cops)
(mapcar (lambda (x)
(let ((node1 (car x))
(node1-edges (cdr x)))
(cons node1
(mapcar (lambda (edge)
(let ((node2 (car edge)))
(if (intersection (edge-pair node1 node2)
edges-with-cops
:test #'equal)
(list node2 'cops)
edge)))
node1-edges))))
edge-alist))
(defun neighbors (node edge-alist)
(mapcar #'car (cdr (assoc node edge-alist))))
(defun within-one (a b edge-alist)
(member b (neighbors a edge-alist)))
(defun within-two (a b edge-alist)
(or (within-one a b edge-alist)
(some (lambda (x)
(within-one x b edge-alist))
(neighbors a edge-alist))))
(defun make-city-nodes (edge-alist)
(let ((wumpus (random-node))
(glow-worms (loop for i below *worm-num*
collect (random-node))))
(loop for n from 1 to *node-num*
collect (append (list n)
(cond ((eql n wumpus) '(wumpus))
((within-two n wumpus edge-alist) '(blood!)))
(cond ((member n glow-worms)
'(glow-worm))
((some (lambda (worm)
(within-one n worm edge-alist))
glow-worms)
'(lights!)))
(when (some #'cdr (cdr (assoc n edge-alist)))
'(sirens!))))))