News : About my work and one of my websites.

I would like to bring to the attention of those who follow my activity on my websites and appreciate the inability to continue with one of the websites: free-tutorials.org. It is currently hosted on a free host, but I cannot import it 100%, which has led me not to complete it with new posts. The continuation of the activities there, considering the limited time, will be carried out on my blogs with the defined theme with which I started: Linux - Fedora, Graphics, Python, Pygame.

In the meantime, because the host is expensive and until now someone has helped me to host it on his server, it is possible to sell the domain: free-tutorials.org - I receive purchase offers at my personal Yahoo email address catafest@yahoo.com.

Minimum starting price 250 euros, because the domain is old from 2018.

PyGame : ovoid with a random pattern.

Here's how to create an ovoid with a random pattern. Run the script several times to see the differences:

import pygame
import random
pygame.init()

# Set up the display window
screen_size = (400, 400)
screen = pygame.display.set_mode(screen_size)
# Set window title
pygame.display.set_caption("Ovoid with Random Pattern")
# Define the ovoid
ovoid_pos = (150, 100)
ovoid_size = (100, 200)

# Create the ovoid surface
ovoid_surface = pygame.Surface(ovoid_size, pygame.SRCALPHA)

# Define the pattern
pattern_size = (random.randint(1, 9), random.randint(1, 9))
pattern_surface = pygame.Surface(pattern_size)
pattern_surface.fill((255, 255, 255))
pygame.draw.line(pattern_surface, (0, 0, 0), (0, 0), pattern_size)

# Create the mask surface
mask_surface = pygame.Surface(ovoid_size, pygame.SRCALPHA)
pygame.draw.ellipse(mask_surface, (255, 255, 255), mask_surface.get_rect(), 0)

# Apply the pattern to the ovoid surface
for x in range(0, ovoid_size[0], pattern_size[0]):
    for y in range(0, ovoid_size[1], pattern_size[1]):
        ovoid_surface.blit(pattern_surface, (x, y))

# Apply the mask to the ovoid surface
ovoid_surface.blit(mask_surface, (0, 0), special_flags=pygame.BLEND_RGBA_MULT)

# Draw the ovoid to the screen
screen.blit(ovoid_surface, ovoid_pos)

# Update the display
pygame.display.flip()

# Wait for the user to close the window
done = False
while not done:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            done = True

# Quit pygame properly
pygame.quit()

PyGame : simple web camera !

In this simple tutorial, I'll show you how to use pygame to use it with a webcam.

Let's install the pygame with the pip tool:

C:\PythonProjects\pygamecamera001>pip install pygame --user
Collecting pygame
  Downloading pygame-2.2.0-cp311-cp311-win_amd64.whl (10.4 MB)
     ---------------------------------------- 10.4/10.4 MB 9.0 MB/s eta 0:00:00
Installing collected packages: pygame
Successfully installed pygame-2.2.0

This is the source code for web camera:

import pygame.camera
import pygame.image
import sys

pygame.camera.init()

cameras = pygame.camera.list_cameras()

webcam = pygame.camera.Camera(cameras[0])

webcam.start()

img = webcam.get_image()

WIDTH = img.get_width()
HEIGHT = img.get_height()

screen = pygame.display.set_mode( ( WIDTH, HEIGHT ) )
pygame.display.set_caption("pyGame webcam")

while True :
    for e in pygame.event.get() :
        if e.type == pygame.QUIT :
            sys.exit()
    screen.blit(img, (0,0))
    pygame.display.flip()
    img = webcam.get_image()