rectangles_leak.py

#! /usr/bin/env python
# -*- coding: utf-8 -*-

# Displays lots of rectangles :)

import sf
import random


class Rectangle():
    def __init__(self, w, h):
        self.angular_velocity = random.randint(1, 359)
        # position
        x = random.randint(20, w - 20)
        y = random.randint(20, h - 20)
        # color
        r = random.randint(0, 255)
        g = random.randint(0, 255)
        b = random.randint(0, 255)
        # size
        w = random.randint(2, 22)
        h = random.randint(2, 22)
        # create shape
        s = sf.RectangleShape((w, h))
        s.fill_color = sf.Color(r, g, b)
        s.position = (x, y)
        s.origin = (w/2, h/2)
        self.shape = s

    def step(self, dt):
        self.shape.rotation += self.angular_velocity * dt

    def draw(self, target, states):
        target.draw(self.shape)


def main():
    window = sf.RenderWindow(sf.VideoMode(800, 600), b'Rectangles', sf.Style.CLOSE)
    window.framerate_limit = 60

    shapes = []
    for i in range(1, 1000):
        shapes.append(Rectangle(800, 600))

    clock = sf.Clock()
    running = True

    while running:
        # frame time
        dt = clock.restart().as_seconds()

        for event in window.iter_events():
            if (event.type == sf.Event.CLOSED or
                (event.type == sf.Event.KEY_PRESSED
                 and event.code == sf.Keyboard.ESCAPE)):
                running = False

        # rotation
        for s in shapes:
            s.step(dt)

        window.clear(sf.Color.WHITE)

        # drawable : fuite
        for s in shapes:
            window.draw(s)

        window.display()

    window.close()


if __name__ == '__main__':
    main()