graphics

Author: furas

zella-graphics/README.md

@@ -5,12 +5,19 @@
 
 Home Page: [Python Programming: An Introduction to Computer Science](http://mcsp.wartburg.edu/zelle/python/)
 
+with [documentation](https://mcsp.wartburg.edu/zelle/python/graphics/graphics/index.html) and [examples](https://mcsp.wartburg.edu/zelle/python/ppics3/code/)
+
 There are links to three editions which have a little different code. Some functions from one edition don't exist in another.
 
 I use [Third Edition](http://mcsp.wartburg.edu/zelle/python/ppics3/index.html) (v.5)
 
+[Source code](http://www.science.smith.edu/dftwiki/index.php/Zelle%27s_Graphics.py_for_Python_3) to see all classes and functions.
+
 ---
 
-`Graphics` use `Tkinter` in background which has more usefull functions. But you have access to this functions too.
+`Graphics` uses `Tkinter` in background which has more useful functions. But you have access to this functions too.
+
+---
 
+Hands-on Python Tutorial >> [Graphics](http://anh.cs.luc.edu/handsonPythonTutorial/graphics.html)
 

zella-graphics/animation/main-tkinter-after.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+
+# date: 2020.05.29
+# It use after to animate point and you still can click window to close program
+
+from graphics import * # PEP8: `import *` is not preferred 
+import random
+
+# --- functions ---
+
+def move():
+    dx = random.randint(-10, 10)
+    dy = random.randint(-10, 10)
+    pt.move(dx, dy)
+    # move again after 100ms (0.1s)
+    win.after(100, move)
+
+# --- main ---
+
+win = GraphWin("My Window",500,500)
+win.setBackground(color_rgb(0,0,0))
+
+pt = Point(250, 250)
+pt.setOutline(color_rgb(255,255,0))
+pt.draw(win)
+
+# move first time after 100ms (0.1s)
+win.after(100, move)
+
+#win.mainloop()
+win.getMouse()
+
+win.close()

zella-graphics/animation/main.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+
+# date: 2020.05.29
+# It use normal loop to animate point and checkMouse to close program on click
+
+from graphics import * # PEP8: `import *` is not preferred 
+import random
+import time
+
+# --- main ---
+
+win = GraphWin("My Window",500,500)
+win.setBackground(color_rgb(0,0,0))
+
+pt = Point(250, 250)
+pt.setOutline(color_rgb(255,255,0))
+pt.draw(win)
+
+while True:
+    if win.checkMouse():
+        break
+    dx = random.randint(-10, 10)
+    dy = random.randint(-10, 10)
+    pt.move(dx, dy)
+    time.sleep(0.1)
+
+win.close()