From dc83fef581b1da9ac6944a4c610fed9789d245b6 Mon Sep 17 00:00:00 2001
From: Colin Okay <colin@cicadas.surf>
Date: Mon, 18 Jul 2022 10:25:44 -0500
Subject: [rename] example 1

---
 examples/01-click-and-drag-bitmap.lisp | 51 ++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 examples/01-click-and-drag-bitmap.lisp

(limited to 'examples/01-click-and-drag-bitmap.lisp')

diff --git a/examples/01-click-and-drag-bitmap.lisp b/examples/01-click-and-drag-bitmap.lisp
new file mode 100644
index 0000000..4bcdba8
--- /dev/null
+++ b/examples/01-click-and-drag-bitmap.lisp
@@ -0,0 +1,51 @@
+;;; 01-bitmap-display.lisp
+
+(defpackage #:ww.examples/1
+  (:use #:cl)
+  (:export #:start))
+
+(in-package :ww.examples/1)
+
+(defclass bitmap-display (ww::application ) ())
+
+(ww::defhandler dragging-unit
+    (ww::on-mousemotion (app x y)
+      (let ((unit
+              (first (ww:container-units app))))
+        (setf (ww:x unit) x
+              (ww:y unit) y))))
+
+(ww:defhandler start-drag
+    (ww:on-mousedown (target)
+      (ww::add-handler
+       (ww::unit-container target)
+       #'dragging-unit)))
+
+(ww:defhandler stop-drag
+    (ww::on-mouseup (app)
+      (ww::remove-handler app #'dragging-unit)))
+
+
+(defmethod ww::boot ((app bitmap-display))
+  (let ((bm
+          (make-instance 'ww::bitmap
+                         :texture (ww::get-asset "Fezghoul.png"))))
+    (describe (ww::model-matrix bm))
+    (describe bm)
+    (describe app)
+    (ww::add-unit app bm)
+    (ww::add-handler bm #'start-drag)
+    (ww::add-handler app #'stop-drag)
+    (format t "CLICK AND DRAG THE GHOUL~%")
+    ))
+
+
+(defun start ()
+  (ww::start
+   (make-instance
+    'bitmap-display
+    :mouse-button-events-bubble-p t 
+    :mouse-motion-events-bubble-p t
+    :asset-root (merge-pathnames
+                 "examples/"
+                 (asdf:system-source-directory :wheelwork)))))
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