model-settings
delta-tick)
+(defun default-model ()
+ "DEFAULT-MODEL => MODEL
+
+ARGUMENTS AND VALUES:
+
+ MODEL: an object representing the model
+
+DESCRIPTION:
+
+ Returns the default startup model."
+ (make-model
+ :interface (list
+ (make-view :min-pxcor -5 :max-pxcor 5 :min-pycor -5 :max-pycor 5))))
+
(defun read-from-nlogo (str)
"READ-FROM-NLOGO STR => MODEL
(read-sections))))
(make-model
:code (nth 0 sections)
- :interface (nth 1 sections)
+ :interface (parse-interface (nth 1 sections))
:info (nth 2 sections)
:turtle-shapes (nth 3 sections)
:version (nth 4 sections)
:link-shapes (nth 9 sections)
:model-settings (nth 10 sections)
:delta-tick (nth 11 sections))))
+
+;;; INTERFACE PARSER
+
+(defparameter *widget-parsers* nil)
+
+(defmacro defwidget-definition (type &rest definitions)
+ (let
+ ((lines (gensym)))
+ `(progn
+ (defstruct ,type
+ ,@(remove nil
+ (mapcar
+ (lambda (def) (when (find (car def) (list :int :double :boolean :choice :string)) (second def)))
+ definitions)))
+ (push
+ (list
+ (lambda (,lines)
+ (and
+ ,@(remove nil
+ (mapcar
+ (lambda (def n)
+ (let
+ ((line `(nth ,n ,lines)))
+ (case (car def)
+ (:specified `(string= ,(second def) ,line))
+ (:int `(parse-integer ,line :junk-allowed t))
+ (:double `(ignore-errors (coerce (read-from-string ,line) 'double-float)))
+ (:boolean `(or (string= "1" ,line) (string= "0" ,line)))
+ (:choice `(find ,line ',(mapcar #'car (third def)) :test #'string=)))))
+ definitions
+ (loop for i to (length definitions) collect i)))))
+ (lambda (,lines)
+ (,(read-from-string (format nil "make-~A" type))
+ ,@(apply #'append
+ (mapcar
+ (lambda (def n)
+ (let*
+ ((line `(nth ,n ,lines))
+ (val-getter
+ (case (car def)
+ (:int `(parse-integer ,line))
+ (:double `(coerce (read-from-string ,line) 'double-float))
+ (:boolean `(string= "1" ,line))
+ (:choice `(cadr (find ,line ',(third def) :key #'car :test #'string=)))
+ (:string line))))
+ (when val-getter (list (intern (symbol-name (cadr def)) :keyword) val-getter))))
+ definitions
+ (loop for i to (length definitions) collect i))))))
+ *widget-parsers*))))
+
+(defwidget-definition view
+ (:specified "GRAPHICS-WINDOW")
+ (:int left)
+ (:int top)
+ (:int right)
+ (:int bottom)
+ (:reserved "-1")
+ (:reserved "-1")
+ (:double patch-size)
+ (:reserved)
+ (:int font-size)
+ (:reserved)
+ (:reserved)
+ (:reserved)
+ (:reserved)
+ (:boolean wrapping-allowed-in-x)
+ (:boolean wrapping-allowed-in-y)
+ (:reserved)
+ (:int min-pxcor)
+ (:int max-pxcor)
+ (:int min-pycor)
+ (:int max-pycor)
+ (:choice update-mode (("0" :continuous) ("1" :tick-based)))
+ (:dump update-mode)
+ (:boolean show-tick-counter)
+ (:string tick-counter-label)
+ (:double frame-rate 30))
+
+(defun parse-interface (interface-as-strings)
+ (let
+ ((widgets-as-strings
+ (labels
+ ((separate-widgets-as-strings (lines &optional widget-as-strings)
+ (when lines
+ (if (string= "" (car lines))
+ (cons widget-as-strings (separate-widgets-as-strings (cdr lines)))
+ (separate-widgets-as-strings (cdr lines) (append widget-as-strings (list (car lines))))))))
+ (separate-widgets-as-strings interface-as-strings))))
+ (remove
+ nil
+ (mapcar
+ (lambda (widget-as-strings)
+ (let
+ ((parser (find-if (lambda (validator) (funcall validator widget-as-strings)) *widget-parsers* :key #'car)))
+ (when parser (funcall (cadr parser) widget-as-strings))))
+ widgets-as-strings))))
+
+;; INFORMATION ABOUT MODEL
+
+(defun world-dimensions (model)
+ "WORLD-DIMENSIONS MODEL => DIMS
+
+ DIMS: (:xmin XMIN :xmax XMAX :ymin YMIN :ymax YMAX)
+
+ARGUMENTS AND VALUES:
+
+ MODEL: A valid model containing a view
+ XMIN: An integer representing the minimum patch coord in X
+ XMAX: An integer representing the maximum patch coord in X
+ YMIN: An integer representing the minimum patch coord in Y
+ YMAX: An integer representing the maximum patch coord in Y
+
+DESCRIPTION:
+
+ Returns the dimensions of MODEL. MODEL must be a valid model
+ as parsed by CLNL, and have a valid view in it."
+ (let
+ ((view (find-if #'view-p (model-interface model))))
+ (list
+ :xmin (view-min-pxcor view)
+ :xmax (view-max-pxcor view)
+ :ymin (view-min-pycor view)
+ :ymax (view-max-pycor view))))