bouncy-window

It's not a ghost, it's gravity

This program can simulate the effects of gravity on a window

• Watch a DEMO VIDEO of this project

info

use the class Gravity to add gravity effect to any Tk window (like this: Gravity(root)) more info below: the class Gravity takes 1 to 3 arguments

Gravity(master, gravity, bounce_factor)

default values for gravity and bounce_factor, if they're not passed as arguments are 3 and 0.6 respectively

• master: pass a tkinter window of type Tk here

• gravity: integer value for the magnitude of gravity acted on the window

  • ranges from 0 to 100
  • 0 means the window is free to move anywhere
  • any other value (let's say N) means the window will move an additional "N" number of pixels every 10 ms (basically acceleration is N px/10 ms^2)

• bounce_factor: (float) fraction of the previous height the window will reach upto after every bounce

  • ranges from 0.0 to 1.0
  • 0 means the window will not bounce at all (0 times the previous height), therefore will just stick to the ground like a magnet
  • 1 means the window will bounce till the same height every time, therefore bouncing forever
  • any other float value (lets say N) means the window will bounce upto "N" times the previous height, ultimately settling on the ground

usage

run the file to get an error box with the gravity effect

or

To add the effect to your custom tkinter window

• import class Gravity from the file bounce.py to the python file you want
• in case you don't already have your desired tkinter window, make a tkinter window of the type Tk (suppose it's named root) and customise it as you wish (don't execute root.mainloop(), Gravity class will handle that)
• then use:

Gravity(root)

to get a gravity effect on the window with default values gravity=3, bounce_factor=0.7

Gravity(root, 7, 0.8)

to get a gravity effect on root with suppose values gravity=7, bounce_factor=0.8