WIP: Implement BOID

[NISH1001]

This has been on my list for too long. I will update this thread with references.

For reference, I love this video by Destin:
https://www.youtube.com/watch?v=4LWmRuB-uNU

[NISH1001]

I already have the basic movement of circles implemented in the meatball class (which I will separate out soon):
https://github.com/NISH1001/panim/blob/master/panim/experiments.py#L286

So, I just need to implement the flocking behaviour. :/

[NISH1001]

The boid will have 3 properties:

• cohesion (flocking towards the center of the mass)
• separation (birds/objects shouldn't collide with each other!)
• alignment (try to match with a nearby vector)

[NISH1001]

cohesion is done.
https://github.com/NISH1001/panim/blob/master/panim/boids.py#L76