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‎pygame/vector2/example-1.py‎

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#!/usr/bin/env python3
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import pygame
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# --- constants ---
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WIDTH = 1200
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HEIGHT = 1200
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FPS = 25
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BLACK = (0, 0, 0)
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WHITE = (250, 250, 250)
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BULLET_SPEED = 5
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# --- classes ---
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#empty
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# --- functions ---
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#empty
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# --- main ---
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# - init -
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pygame.init()
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screen = pygame.display.set_mode((WIDTH, HEIGHT))
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# - objects -
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bullets = []
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# center of screen as Vector2
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#center = pygame.math.Vector2(WIDTH//2, HEIGHT//2)
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center = pygame.math.Vector2(screen.get_rect().center)
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# - mainloop -
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clock = pygame.time.Clock()
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running = True
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while running:
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screen.fill(BLACK)
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for event in pygame.event.get():
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if event.type == pygame.QUIT:
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running = False
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elif event.type == pygame.KEYDOWN:
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if event.key == pygame.K_ESCAPE:
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running = False
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elif event.type== pygame.MOUSEBUTTONDOWN:
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if event.button == 1:
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# get vector from center to mouse position
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vector = event.pos - center
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# `center` is `Vector2` so `vector` will be `Vector2` too
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#print(type(vector))
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# normalize
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normal = vector.normalize()
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# create speed vector
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speed = normal * BULLET_SPEED
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# move object (first move 15 times bigger then next moves )
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pos = center + (speed * 15)
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previous = pygame.math.Vector2(center)
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#pygame.draw.line(screen, (255,150,100), (pos.x, pos.y), (center.x, center.y))
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pygame.draw.line(screen, (255,150,100), pos, previous)
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# remeber position and speed as one object
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bullets.append( [pos, speed, previous] )
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# - draws -
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for pos, speed, previous in bullets:
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previous.x = pos.x
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previous.y = pos.y
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# move
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pos += speed
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# draw
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#pygame.draw.line(screen, (255,150,100), pos, previous)
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pygame.draw.rect(screen, WHITE, (pos.x, pos.y, 2, 2))
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pygame.display.update()
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# - speed -
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clock.tick(FPS)
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# - end -
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pygame.quit()
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quit()
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‎pygame/vector2/example-1b.py‎

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#!/usr/bin/env python3
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import pygame
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# --- constants ---
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WIDTH = 800
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HEIGHT = 800
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FPS = 25
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BLACK = (0, 0, 0)
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WHITE = (250, 250, 250)
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BULLET_SPEED = 5
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# --- classes ---
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#empty
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# --- functions ---
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#empty
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# --- main ---
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# - init -
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pygame.init()
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screen = pygame.display.set_mode((WIDTH, HEIGHT))
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screen_rect = screen.get_rect()
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# - objects -
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bullets = []
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# center of screen as Vector2
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#center = pygame.math.Vector2(WIDTH//2, HEIGHT//2)
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center = pygame.math.Vector2(screen.get_rect().center)
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shot = False
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# - mainloop -
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clock = pygame.time.Clock()
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running = True
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while running:
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for event in pygame.event.get():
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if event.type == pygame.QUIT:
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running = False
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elif event.type == pygame.KEYDOWN:
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if event.key == pygame.K_ESCAPE:
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running = False
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elif event.type== pygame.MOUSEBUTTONDOWN:
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if event.button == 1:
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shot = event.pos
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elif event.type== pygame.MOUSEBUTTONUP:
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if event.button == 1:
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shot = None
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elif event.type== pygame.MOUSEMOTION:
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if shot:
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shot = event.pos
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# create new bullet
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if shot:
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# get vector from center to mouse position
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vector = shot - center
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# `center` is `Vector2` so `vector` will be `Vector2` too
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#print(type(vector))
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# normalize
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normal = vector.normalize()
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# create speed vector
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speed = normal * BULLET_SPEED
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# move object (first move 15 times bigger then next moves )
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pos = center# + (speed * 15)
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pos = pygame.math.Vector2(center)
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previous = pygame.math.Vector2(center)
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#pygame.draw.line(screen, (255,150,100), (pos.x, pos.y), (center.x, center.y))
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pygame.draw.line(screen, (255,150,100), pos, previous)
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# remeber position and speed as one object
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bullets.append( [pos, speed, previous] )
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# - updates (without draws) -
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new_bullets = []
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for pos, speed, previous in bullets:
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#previous.x = pos.x
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#previous.y = pos.y
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# move
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pos += speed
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if screen_rect.collidepoint(pos):
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new_bullets.append( [pos, speed, previous] )
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bullets = new_bullets
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# - draws -
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screen.fill(BLACK)
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for pos, speed, previous in bullets:
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# draw
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#pygame.draw.line(screen, (255,150,100), pos, previous)
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pygame.draw.rect(screen, WHITE, (pos.x, pos.y, 2, 2))
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pygame.display.update()
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# - speed -
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clock.tick(FPS)
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# - end -
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pygame.quit()
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quit()
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‎pygame/vector2/example-2.py‎

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#!/usr/bin/env python3
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'''
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with line which shows way
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'''
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import pygame
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# --- constants ---
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WIDTH = 800
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HEIGHT = 800
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FPS = 25
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BLACK = (0, 0, 0)
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WHITE = (255, 255, 255)
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RED = (255, 0, 0)
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GREEN = (0, 255, 0)
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BLUE = (0, 0, 255)
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BULLET_SPEED = 15
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# --- classes ---
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#empty
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# --- functions ---
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#empty
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# --- main ---
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# - init -
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pygame.init()
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screen = pygame.display.set_mode((WIDTH, HEIGHT))
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screen_rect = screen.get_rect()
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# - objects -
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bullets = []
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# center of screen as Vector2
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#center = pygame.math.Vector2(WIDTH//2, HEIGHT//2)
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center = pygame.math.Vector2(screen_rect.center)
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# - mainloop -
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clock = pygame.time.Clock()
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while True:
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for event in pygame.event.get():
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if event.type == pygame.QUIT:
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pygame.quit()
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quit()
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if event.type== pygame.MOUSEBUTTONDOWN:
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if event.button == 1:
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# get vector from center to mouse position
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vector = event.pos - center
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# `center` is `Vector2` so `vector` will be `Vector2` too
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#print(type(vector))
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# normalize
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normal = vector.normalize()
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# create speed vector
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speed = normal * BULLET_SPEED
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# move object (first move 5 times bigger then next moves )
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#pos = center + (speed * 15)
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#pos = center + speed
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pos = pygame.math.Vector2(center)
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previous = pygame.math.Vector2(center)
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# remeber position and speed as one object
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bullets.append( [pos, speed, previous] )
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# - updates (without draws)-
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existing_bullets = []
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for pos, speed, previous in bullets:
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# copy from `pos` to `previous`
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# can't do `previous = pos`
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previous.x = pos.x
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previous.y = pos.y
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# move
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pos += speed
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# check if bullet still on screen
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if screen_rect.collidepoint(pos):
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existing_bullets.append( [pos, speed, previous] )
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bullets = existing_bullets
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# - draws (without updates)-
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screen.fill(BLACK)
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for pos, speed, previous in bullets:
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# draw
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pygame.draw.line(screen, GREEN, pos, previous)
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pygame.draw.rect(screen, WHITE, (pos.x-3, pos.y-3, 6, 6))
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pygame.display.update()
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# - speed -
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clock.tick(FPS)
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# - end -
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‎requests/ungzip-data/example-3.py‎

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#!/usr/bin/env python3
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import urllib.request
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import io
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import gzip
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url = 'http://httpbin.org/gzip'
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r = urllib.request.urlopen(url)
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bytes_compressed = r.read()
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mem_file = io.BytesIO(bytes_compressed)
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gzip_file = gzip.GzipFile(fileobj=mem_file)
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bytes_uncompressed = gzip_file.read()
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print(bytes_uncompressed.decode('utf-8'))

‎tkinter/after-own-version/README.md‎

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It is example how `after` and `mainloop` can work.

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