images.py

from random import random, choice
from glob import glob

from kivy.app import App
from kivy.lang import Builder
from kivy.factory import Factory
from kivy.clock import Clock
from kivy.graphics import Rectangle
from kivy.uix.widget import Widget
from kivy.core.window import Window

IMAGES = glob('/usr/share/icons/oxygen/base/64x64/emoteemotes/*.png')


class Application(App):
    def build(self):
        self.root = root = Widget(size=Window.size)
        self.setup_scene(root)
        Clock.schedule_interval(self.update, 0)
        return root

    def setup_scene(self, root):
        width, height = self.root.size

        self.rectangles = []
        with root.canvas:
            for i in range(1000):
                r = Rectangle(
                    pos=(width / 2 - 32, height / 2 - 32),
                    size=(64, 64),
                    source=choice(IMAGES)
                )
                self.rectangles.append(r)

    def update(self, dt):
        for r in self.rectangles:
            width, height = r.size
            x, y = r.pos
            x = min(self.root.width - width, max(0, x + 10 * (random() - .5)))
            y = min(self.root.height - height, max(0, y + 10 * (random() - .5)))
            r.pos = x, y


if __name__ == "__main__":
    Application().run()