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https://github.com/nikorasu/pynboids

This is a Boids Simulation, written in Python with Pygame.
https://github.com/nikorasu/pynboids

birds boid boids boids-algorithm boids-simulation emergent-behavior flocking flocking-algorithm flocking-simulation murmuration numpy pygame pygame2 python python3 schooling screensaver simulation spatial-partitioning swarm-intelligence

Last synced: 3 months ago
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This is a Boids Simulation, written in Python with Pygame.

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# PyNBoids
![Preview](preview.gif "Preview")

### A Python Boids Simulation
This is a [Boids simulation](https://en.wikipedia.org/wiki/Boids "Wikipedia"),
written in Python3, with Pygame2 and NumPy.

**To use:** Save the `pynboids_sp.py` file (and `nboids.png` if you want the
icon, not required) and run via python. (Example: `python3 pynboids.py`)

`Esc` key to quit.

I've included several customizable settings near the top of the code.
You can adjust window size, fullscreen, fps, and how many boids to spawn,
as well as whether they avoid the screen edges or wrap to the other side,
change the background color, or turn the boids into fish! ;)

##### Update (11/14/22):
Minor updates to several files. New `nboids_ss.py` version is a linux-only
pseudo-screensaver that **_requires_** _xprintidle_ be installed. BUT, due
to a possible memory leak, the screensaver must be started using `run_ss.py`.

##### Update (5/20/21):
New `pynboids_sp.py` version, implements a spatial partitioning grid to
improve efficiency of detecting other boids. Most efficient version so far!

##### Update (5/16/21):
Added `pynboids2.py` version, an update to the original pynboids, with numpy
array methods from pixelboids.py to improve efficiency. 2x more boids then b4.

##### Update (5/14/21):
Added `pixelboids.py` version, draws boids as pixels in surfarray that fades
as they move. Distance sorting & for-loop math replaced with numpy array math.
Uses a fading surfArray to create tails, pixelation makes them look animated.

#### Special Thanks: (Let me know if I forgot anyone.)
I couldn't have gotten this far without the Pygame Discord channel:
CozyFractal, for help with the spatial partition grid & improving efficiency.
Mega_JC, Ghast, and bydariogamer, for answering various questions I had.

For more information, and future updates,
[see github page](https://github.com/Nikorasu/PyNBoids "PyNBoids").

---

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.
If not, see: https://www.gnu.org/licenses/gpl-3.0.html

###### Copyright (c) 2021 Nikolaus Stromberg - [email protected]