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;;; 03-font-render.lisp
(defpackage #:ww.examples/3
(:use #:cl)
(:export #:start))
(in-package #:ww.examples/3)
(defclass font-display (ww::application) ())
(defun random-text-color ()
(make-array 4 :initial-contents (list (random 1.0) (random 1.0) (random 1.0) 1.0)))
(ww::defhandler change-text-color
(ww::on-keydown ()
"Press any key to change the color of the text"
(format t "Pressed a key, changing the color~%")
(setf (ww::text-color target) (random-text-color))
(with-accessors ((x ww::x) (y ww::y) (w ww::width) (h ww::height)) target
(format t "x:~a,y:~a,width:~a,height:~a~%" x y w h))))
(ww::defhandler marquee
(ww::on-perframe ()
(when (< 900 (ww::x target))
(setf (ww::x target)
-800))
(incf (ww::x target) 5 )))
(defvar *spin-table* (make-hash-table :synchronized t))
(ww::defhandler spin
(ww::on-perframe ()
(let ((rot
(gethash target *spin-table* 0.0)))
(if (< rot (* 8 pi))
(setf
(gethash target *spin-table*) (+ rot 0.88)
(ww::text-color target) (random-text-color)
(ww::rotation target) rot)
(progn
(setf (ww::rotation target) 0.0)
(ww::remove-handler target #'spin)
(remhash target *spin-table*))))))
(ww::defhandler twirl-on-click
(ww::on-mousedown ()
(ww::add-handler target #'spin)))
(defmethod ww::boot ((app font-display))
(let ((hello
(make-instance
'ww::text
;:content "Hell! Oh World ..."
:content (format nil "Hell!~%Oh World...")
:font (ww::get-asset "Ticketing.ttf" :asset-args '(:oversample 2))))
(instructions
(make-instance
'ww::text
:content "Click to spin. Press any key to change color."
:font (ww::get-asset "Ticketing.ttf"))))
(ww::scale-by hello 3.0)
(setf
(ww::x hello) (* 0.5 (- 800 (ww::width hello)))
(ww::y hello) (* 0.5 (- 600 (ww::height hello))))
(ww::add-handler hello #'marquee)
(ww::add-handler hello #'change-text-color)
(ww::add-handler hello #'twirl-on-click)
(ww::refocus-on hello)
(ww::add-unit app hello)
(ww::scale-by instructions 2.0)
(setf
(ww::x instructions) (* 0.5 (- 800 (ww::width instructions))))
(ww::add-unit app instructions)))
(defun start ()
(ww::start (make-instance
'font-display
:fps 60
:refocus-on-mousedown-p nil
:width 800
:height 600
:title "Wheelwork Example: Font display"
:asset-root (merge-pathnames
"examples/"
(asdf:system-source-directory :wheelwork)))))
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