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David Botton 2021-02-01 12:05:57 -05:00
parent 79a31fba88
commit a46f5dbf6f
8 changed files with 39 additions and 83 deletions
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41
tutorial/07-tutorial.lisp
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@ -13,78 +13,71 @@
(handler-case ; Disconnects from the browser can be handled gracefully using the condition system.
(progn
(setf (title (html-document body)) "Tutorial 7")
;; Show a "splash" screen
(setf (hiddenp (prog1
(create-section body :h2
:content "KILL Darth's Tie Fighter - Click on it!")
(sleep 2))) t)
(sleep 2))) t)
;; Setup main game
(let* ((mover (create-div body :content "(-o-)"))
bounds-x bounds-y mover-x mover-y)
(flet ((set-bounds ()
(setf bounds-x (parse-integer (width (window body)) :junk-allowed t))
(setf bounds-y (parse-integer (height (window body)) :junk-allowed t))))
(set-bounds)
(setf mover-x (random bounds-x))
(setf mover-y (random bounds-y))
;; Capture browser size changes to adjust playing field
(set-on-resize (window body)
(lambda (obj)
(declare (ignore obj))
(set-bounds))))
;; Setup our "mover". Darth
(setf (positioning mover) :fixed)
(set-on-click mover #'on-click)
;; Get Darth moving!
(bordeaux-threads:make-thread ; In addtion to the main task (the on-new-window)
(lambda () ; and the task created for each event like clicks
(loop ; threads can be created as needed.
(unless (validp body)
(loop ; threads can be created as needed and used with
(unless (validp body) ; CLOG.
(return))
(when (connection-data-item body "done")
(return))
(return))
(sleep .5)
(setf (text mover) ")-o-(")
(sleep .2)
(setf (text mover) "(-o-)"))
(setf (inner-html mover) "<H1>GAME OVER</H1>")))
;; Check of browser still connected while running game loop
(loop
(unless (validp body)
(return))
(when (connection-data-item body "done")
(return))
(return))
(setf (top mover) (format nil "~Apx" mover-y))
(setf (left mover) (format nil "~Apx" mover-x))
(setf (left mover) (format nil "~Apx" mover-x))
(if (= (random 2) 0)
(incf mover-y (random 10))
(decf mover-y (random 10)))
(if (= (random 2) 0)
(incf mover-x (random 10))
(decf mover-x (random 10)))
(decf mover-x (random 10)))
(when (< mover-x 0)
(setf mover-x 0))
(when (> mover-x bounds-x)
(setf mover-x bounds-x))
(setf mover-x bounds-x))
(when (< mover-y 0)
(setf mover-y 0))
(when (> mover-y bounds-y)
(setf mover-y bounds-y))
(setf mover-y bounds-y))
(sleep .02))))
(error (c)
(format t "Lost connection.~%~%~A" c))))
;; There is no reason to run (run body) here as we check for (validp body)
;; and once the connection dies so does the on-new-window thread.
;;; There is no reason to run (run body) here as we check for (validp body)
;;; and once the connection dies so does the on-new-window thread.
(defun start-tutorial ()
"Start turtorial."
(initialize #'on-new-window)
(open-browser))