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Map.lisp
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Map.lisp
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;;;; Map.lisp
;;;;
;;;; author: Erik Winkels (aerique@xs4all.nl)
;;;; created: 2010-02-05
;;;; license: Public Domain
;;;;
;;;; You don't need to edit this file, see the MAKE-MOVE function in
;;;; MyTronBot.lisp.
;;; Package
(defpackage :my-tron-bot
(:use :cl))
(in-package :my-tron-bot)
;;; Parameters
(defparameter *verbose* nil)
(defparameter *input* *standard-input*)
(defparameter *output* *standard-output*)
;;; Classes
(defclass tron-map ()
((map :reader map-of :initarg :map :initform nil)
(position-1 :reader my-position :initform nil)
(position-2 :reader enemy-position :initform nil)
(x :reader x-of :initarg :x :initform nil)
(y :reader y-of :initarg :y :initform nil)))
(defgeneric make-move (map))
(defgeneric parse-map (map))
(defgeneric print-map (map))
(defgeneric set-map-size (map string))
(defgeneric wall? (map x y))
;;; Utility Functions
(defun current-date-time-string ()
(multiple-value-bind (sec min hou day mon yea)
(decode-universal-time (get-universal-time))
(format nil "~D-~2,'0D-~2,'0D ~2,'0D:~2,'0D:~2,'0D"
yea mon day hou min sec)))
(let ((log nil))
(defun logmsg (&rest args)
(when (and *verbose*
(not log))
(setf log (open "sbcl.log" :direction :output :if-exists :append
:if-does-not-exist :create)))
(when *verbose*
(format log (with-output-to-string (s) (dolist (a args) (princ a s))))
(force-output log))))
(defun move (direction)
(case direction
(:north (princ "1" *output*))
(:east (princ "2" *output*))
(:south (princ "3" *output*))
(:west (princ "4" *output*))
(:up (princ "1" *output*))
(:right (princ "2" *output*))
(:down (princ "3" *output*))
(:left (princ "4" *output*)))
(terpri *output*)
(force-output *output*))
;;; Methods
;; Slow!
(defmethod print-map ((m tron-map))
(loop repeat (y-of m)
for y from 0
do (logmsg "[map] ")
(loop repeat (x-of m)
for x from 0
do (logmsg (aref (map-of m) x y)))
(logmsg "~%")))
(defmethod set-map-size ((m tron-map) (s string))
(let ((space (position #\space s)))
(setf (slot-value m 'x) (parse-integer (subseq s 0 space))
(slot-value m 'y) (parse-integer (subseq s space)))))
(defmethod parse-map ((m tron-map))
(if (and (x-of m) (y-of m)) ;; do we know the map's size?
(read-line *input* nil nil)
(set-map-size m (read-line *input* nil nil)))
(unless (map-of m) ;; is the map array initialised?
(setf (slot-value m 'map)
(make-array (list (x-of m) (y-of m)))))
(loop repeat (y-of m)
for y from 0
do (loop for c across (read-line *input* nil nil)
for x from 0
do (setf (aref (map-of m) x y) c)
(case c
(#\1 (setf (slot-value m 'position-1) (list x y)))
(#\2 (setf (slot-value m 'position-2) (list x y)))))))
(defmethod clone ((m tron-map))
(let ((nm (make-instance 'tron-map)))
(setf (slot-value nm 'position-1) (my-position m))
(setf (slot-value nm 'position-2) (enemy-position m))
(setf (slot-value nm 'x) (x-of m))
(setf (slot-value nm 'y) (y-of m))
(setf (slot-value nm 'map) (copy-array (map-of m)))
nm))
(defmethod wall? ((m tron-map) (x fixnum) (y fixnum))
(or (< x 0) (>= x (x-of m)) (< y 0) (>= y (y-of m))
(case (aref (map-of m) x y)
((#\# #\1 #\2) t)
(otherwise nil))))
; (defgeneric clone (map))
; (defgeneric set-wall (map fixnum fixnum))
; (defgeneric move-player (map fixnum fixnum))
; (defgeneric move-enemy (map fixnum fixnum))
; (defgeneric move-both (map fixnum fixnum fixnum fixnum))
; (defgeneric set-wall! (map fixnum fixnum))
; (defgeneric set-player! (map fixnum fixnum))
; (defgeneric set-enemy! (map fixnum fixnum))
; (defgeneric player-position (map))
;
(defmethod player-position ((m tron-map))
(my-position m))
(defmethod inside? ((m tron-map) (x fixnum) (y fixnum))
(and (>= x 0) (< x (x-of m)) (>= y 0) (< y (y-of m))))
(defmethod set-wall! ((m tron-map) (x fixnum) (y fixnum))
(when (inside? m x y)
(setf (aref (map-of m) x y) #\#))
m)
(defmethod set-player! ((m tron-map) (x fixnum) (y fixnum))
(when (inside? m x y)
(setf (aref (map-of m) x y) #\1))
(setf (slot-value m 'position-1) (list x y)))
(defmethod set-enemy! ((m tron-map) (x fixnum) (y fixnum))
(when (inside? m x y)
(setf (aref (map-of m) x y) #\2))
(setf (slot-value m 'position-2) (list x y)))
; this returns a copy
(defmethod move-player ((m tron-map) (x fixnum) (y fixnum))
(let* ((nm (clone m))
(pp (my-position m)))
(set-wall! nm (car pp) (cadr pp))
(set-player! nm x y)
nm))
; this returns a copy
(defmethod move-enemy ((m tron-map) (x fixnum) (y fixnum))
(let* ((nm (clone m))
(pp (enemy-position m)))
(set-wall! nm (car pp) (cadr pp))
(set-enemy! nm x y)
nm))
; this returns a copy
(defmethod move-both ((m tron-map) (x fixnum) (y fixnum) (ex fixnum) (ey fixnum))
(let* ((nm (clone m))
(pp (player-position m))
(ep (enemy-position m)))
(set-wall! nm (car pp) (cadr pp))
(set-wall! nm (car ep) (cadr ep))
(set-player! nm ex ey)
(set-enemy! nm ex ey)
nm))
; Dangerous - this just clones and sets the wall
; it does not update player positions
(defmethod set-wall ((m tron-map) (x fixnum) (y fixnum))
(let ((nm (clone m)))
(set-wall! nm x y)
nm))
; fuck common lisp
(defun copy-array (array)
(let ((dims (array-dimensions array)))
(adjust-array
(make-array dims :displaced-to array)
dims)))
(defun test-copy-array ()
(let* ((y (make-array (list 2 2)))
(x (copy-array y)))
(setf (aref x 1 1) 1)
(setf (aref y 0 0) -1)
(list (aref x 1 1) (aref y 0 0) (aref x 0 0) (aref y 1 1))))