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Life after CS106AP!
Day 1!
Life after CS106AP!
Day 1!
Life after CS106AP!
Day 1!
while True:
if stop_condition:
break
# ‘Animate’ object
pause(timestep)
while True:
if stop_condition:
break
# ‘Animate’ object
pause(timestep) Small movements help make the animation appear continuous!
while True:
if stop_condition:
break
# ‘Animate’ object
pause(timestep)
How long to wait in milliseconds
Definition
Definition
ints, strings, booleans, lists, floats, dictionaries, etc. are all built-in Python data types
Definition
Classes allow us to define our own data types!
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Definition
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image = SimpleImage(width, height)
Creates an instance of the SimpleImage class (i.e. an object of the type SimpleImage)
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●○ oval.fill_color oval.width○○ Variables stored inside
the class
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●○ oval.fill_color oval.width○ oval.move()○
Functions you can call on the object
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●○ oval.fill_color oval.width○ oval.move()○ GOval(width, height)
How you create the object
Pynstagram.py
PynstaUser
PynstaUser
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PynstaUser
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● PynstaUser(name)
class PynstaUser:
def __init__(self, username): self.name = username self.friends = [] self.posts = []
def add_friend(self, user): …
def post(self, message): ...
Methods
Attributes (must start ith self. to be attributes!)
Class definition and name
Constructor
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Today!
Encapsulation!
Definition
Definition
a class!
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vs.
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Getters and setters!
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Bubbles.py
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Life after CS106AP!
Day 1!
Event-driven programming!
def main():
...
...
def your_mouse_listener():
...
def main():
...
...
def your_mouse_listener():
...
Definition
def main():
...
...
def your_mouse_listener():
...
Definition
clicking, moving, dragging
def main():
...
...
def your_mouse_listener():
...
def main():
...
...
def your_mouse_listener():
...
def main():
...
...
def your_mouse_listener():
...
MOUSE CLICK
def main():
...
...
def your_mouse_listener():
...
MOUSE CLICK
def main():
...
...
def your_mouse_listener():
...
MOUSE CLICK
The function happens immediately, no matter where you are in your program!
def mouse_listener_handler(event):
...
def mouse_listener_handler(event):
...
It must take in an event for campy to recognize it as a valid mouse listener.
def mouse_listener_handler(event):
...
event gives us access to information about the mouse event (e.g. x, y coordinates of the click).
def mouse_listener_handler(event):
...
onmouseevent()
onmouseclicked(mouse_listener_handler)
def mouse_listener_handler(event):
...
onmouseevent()
onmouseclicked(mouse_listener_handler)
Pass in your mouse listener function as the argument
def mouse_listener_handler(event):
...
onmouseevent()
onmouseclicked(mouse_listener_handler)
Don’t include parentheses after the function name!
Bubbles.py
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