tag:blogger.com,1999:blog-67476578068425565782026-09-20T16:28:11.790-07:00pygame-catalinPython and Pygame tutorials with source code, examples, guides, and tips and tricks for Windows and Linux development.
Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comBlogger74125tag:blogger.com,1999:blog-6747657806842556578.post-19000256264793552432026-08-21T22:37:00.592-07:002026-08-21T22:37:00.592-07:00PyGame : using shaders with fonts.The program shows three text effects using pygame. Each effect is created by slicing the rendered text into thin vertical strips and moving or recoloring those strips. This method works well in Pydroid 3 because it does not require real GPU shaders. The glow effect draws the same text several times with small offsets and low transparency, creating a soft neon halo that pulses over time. The wave Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-7681962533435311482026-08-16T04:25:17.672-07:002026-08-16T04:25:17.673-07:00PyGame : drawing SVG image on pydroid 3.This Pygame script displays an SVG image and status text on Android. It reads the SVG into memory as binary data using io.BytesIO, loads it via pygame.image.load(), scales it by 200%, and dynamically centers it below the status text to prevent visual overlap.
Let's see the source code:
import io
import os
import pygame
import xml.etree.ElementTree as ET
pygame.init()
pygame.font.init()
WIDTH, Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-67711776275584701382026-08-10T04:43:57.116-07:002026-08-10T04:43:57.117-07:00PyGame : Fixing Android Screen Rotation Crashes in Pygame and Pydroid 3.When developing mobile 2D games using Python, Pygame, and Pydroid 3 on Android, rotating the device frequently causes application crashes or frozen rendering loops. This core instability stems from how the Android operating system handles application lifecycles and SDL video contexts. When an orientation shift occurs, the system destroys the underlying hardware surface. Standard Pygame Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-55420356342985064332026-07-05T06:48:31.400-07:002026-07-05T06:57:24.117-07:00PyGame : Real Situation in 2026 for Pygame and Pygame-CE.Today 05072026, about these two python modules: pygame and pygame-ce, with my blogger chart all time :
Pygame (original)
As of 2026, the original Pygame project remains in a state of minimal maintenance. The last meaningful release was the Pygame 2.5.x series in 2023. After that point, development slowed significantly, and the updates released in 2024, 2025, and 2026 consist only of minor fixes Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-48688177306046657402026-05-17T13:53:51.369-07:002026-08-10T04:44:36.896-07:00PyGame : simple example python script to toggle fullscreen mode.Simple example with pygame window to switch on fullscren.
The program starts by initializing Pygame and creating a 640×480 window. It also prepares a font and draws a button on the screen that will be used to toggle fullscreen mode. A variable keeps track of whether the program is currently in fullscreen or windowed mode.
Inside the main loop, the program listens for events. If the user clicks Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-17854284346200471232026-04-21T11:56:00.000-07:002026-04-21T11:56:42.453-07:00PyGame : tool with pygame and pyqt6 for sprites.Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-9191372866513618792026-04-20T12:07:00.000-07:002026-04-20T12:07:07.255-07:00Python-CE : simulation continuous collision with PyQtGraph python module.This test runs a pygame‑ce simulation inside a separate thread while a PyQt6 window displays a real‑time performance chart. The pygame engine creates multiple moving sprites, updates their positions every frame, and performs continuous collision detection between all sprites. During each frame, the engine measures the current FPS (frames per second) and counts how many sprite‑to‑sprite collisionsCătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-11510424400022425462026-04-13T05:01:00.000-07:002026-04-13T05:01:05.634-07:00Python-CE : How to fix DPI pygame‑ce on Python 3.13.0 and test your DPI monitors.Today, I tried the high-DPI displays, and because I have Python 3.13.0, some features are not supported, but I fixed them.
This script is specifically designed for:
Python 3.13pygame‑ce 2.5.7SDL 2.32.x (bundled inside pygame‑ce)
These versions have incomplete DPI support in the Python bindings.
Many DPI‑related functions that exist in SDL2 are not exposed in pygame‑ce for Python 3.13.
Examples ofCătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-30776342290292126492026-04-10T08:35:00.000-07:002026-04-10T08:35:49.192-07:00PyGame : particles with the pygame and pyqt6 !Today, I test one python script with pygame and pyqt6. The python script use classes and show particles. See the result:
These are python and pygame-ce, but the source code use pygame.
Python 3.13.0 (tags/v3.13.0:60403a5, Oct 7 2024, 09:38:07) [MSC v.1941 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pygame
pygame-ce 2.5.7 (SDL Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-69872024896089092802026-04-06T12:33:00.000-07:002026-04-06T12:34:40.926-07:00PyGame-CE : First test example with pygame-ce-2.5.7The biggest technical difference in version 2.5.7 is the expanded use of SIMD (Single Instruction, Multiple Data)
It utilizes modern CPU instructions like AVX2 (Intel/AMD) and NEON (ARM/Apple Silicon).
Pixel-level operations—such as blending, alpha-compositing, and surface scaling 30% to 100% faster than the original Pygame. If you are doing real-time lighting or heavy particle effects
Let's Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-18301242575912031992026-01-22T07:37:00.000-08:002026-04-06T12:35:05.192-07:00News : What is the difference between pygame and pygame-ce?Python game development often begins with the popular pygame library. However, in recent years, a new alternative has emerged: pygame-ce (Community Edition). While both libraries share the same foundation, they differ significantly in development pace, features, and long-term vision.
pygame: The original library created in the early 2000s, widely used for 2D games.
pygame-ce: A community-driven Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-10689869298129852412026-01-03T10:42:00.000-08:002026-04-10T08:35:45.887-07:00PyGame : conversion tool from shadertoy to shader pygame .Today I tested a new tool that converts source code for shadertoy language into source code for pygame.
Shadertoy uses a permissive WebGL‑style GLSL ES shader language, while PyGame (through PyOpenGL) requires strict desktop GLSL 330 Core.
This is the result for this shadertoy example.
Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-38625153888025217312025-09-23T02:54:00.000-07:002025-09-23T02:54:20.886-07:00News : ... new pygame version 2.6.0 .... seams pygame team development works and released a new version, see the GitHub project.Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-86642728856959856012024-10-19T09:24:00.000-07:002024-10-19T09:24:40.846-07:00PyGame : 5by5 linux game project - part 001.The game is about your brain skills to hack the code based on minimal information versus total information.
The code has 5 distinct letters.
click on the letters on the keypad
the number of guessed letters is displayed in the form: centered - guessed letters on positions and moved guessed letters but on other positions
I used agentpy python module and pygame python module
The game can be found onCătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-45984129499266423582024-09-21T11:21:00.000-07:002024-09-21T11:21:51.027-07:00PyGame : 8in8 linux game project - part 001.I started a game project with the python packages pygame and agentpy in the Fedora Linux distribution.
You can find it on my fedora pagure repoCătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-67081026689911294742024-06-16T03:22:00.000-07:002024-06-16T03:22:22.613-07:00PyGame : Game development in PyGame: making a basic map.Example with PyGame with 3D features ...
The project can be found on the GitHub repo - stage 11 ...
Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-52256889620719535922024-03-30T07:21:00.000-07:002024-03-30T07:21:50.332-07:00PyGame : ... antialiased filled circle !The pygame python module does not implement an antialiased filled circle and this is the scope of this tutorial.
The pygame module for drawing shapes are:
pygame.draw.rect - to draw a rectanglepygame.draw.polygon - to draw a polygonpygame.draw.circle - to draw a circlepygame.draw.ellipse - to draw an ellipsepygame.draw.arc - to draw an elliptical arcpygame.draw.line - to draw a straight Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-85067141370693272772023-07-10T10:33:00.004-07:002023-07-10T10:33:33.134-07:00News : 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 Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-69734836128535354752023-04-08T14:45:00.001-07:002023-04-08T14:45:09.740-07:00PyGame : 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 Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-31238056903738191072023-03-03T13:08:00.003-08:002023-03-03T13:08:31.355-08:00PyGame : 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 Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-10089346061358155912023-01-02T13:58:00.001-08:002023-01-02T13:58:19.728-08:00PyGame : simple digital clock.This is the source code I used and is very simple.
import pygame
import time
# init the Pygame
pygame.init()
# this set the window size
window_size = (640, 100)
# this create the window
screen = pygame.display.set_mode(window_size)
# this set the title of the window
pygame.display.set_caption("Digital Clock")
# this fill the background color to white
screen.fill((255, 255, 255))
# settings Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-70167213575705218252022-12-22T16:15:00.004-08:002022-12-22T16:15:59.120-08:00News : pygame-menu version 4.3.2.This python package let you to use a menu for pygame.
You can find it on this webpage and documentation on this webpage.
This is simple to use it:
You can install easy like any python package using the pip3 python tool:
pip3 install pygame-menu==4.3.2 --user
I created a python file named pygame-menu_001.py and I add this simple example to test it:
import pygame
import pygame_menu
from pygame_menuCătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-41423493778009524932022-02-22T10:54:00.000-08:002022-02-22T10:54:02.300-08:00PyGame : Testing Pygame GUI - part 03.In this article tutorial I show you how can create a progressbar and set it with value 76.
This example looks like this:
The source code is not very complicated and is very readable for any developer with minimal knowledge in the programming area.
import pygame
import pygame_gui
pygame.init()
pygame.display.set_caption('Quick Start')
window_surface = pygame.display.set_mode((640, 480))
Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-30080540183948982902022-02-20T05:15:00.003-08:002022-02-20T05:15:40.866-08:00PyGame : Testing Pygame GUI - part 02.I repeat, Pygame GUI is a module to help you make graphical user interfaces for games written in pygame.
In this short tutorial I will show you a source code that creates a HealthBar.
This example looks like this:
The source code is not very complicated and is very readable.
import pygame
import pygame_gui
pygame.init()
pygame.display.set_caption('Quick Start')
window_surface = Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.comtag:blogger.com,1999:blog-6747657806842556578.post-7195556861220513682022-02-11T13:31:00.001-08:002022-02-11T13:31:38.307-08:00PyGame : Testing Pygame GUI - part 01.Pygame GUI is a module to help you make graphical user interfaces for games written in pygame.
The module is firmly forward-looking and is designed to work on Pygame 2 and Python 3.
You can read more about these features for this python package on the official website.
This is a simple interface with python and python pygame and pygame_gui python packages.
You can see a simple example on my Cătălin George Feștilăhttp://www.blogger.com/profile/10800322932529698711noreply@blogger.com