Since I discovered the Primer channel on YouTube, I've thought that was just about the pinnacle of communicating behaviors of complex simulations like evolutionary ecology.
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In trying to learn a little more about Unity, I also came across the fantastic Coding Adventures series, which includes a visually engaging predator-prey simulation.
That seemed like a fun launching-off point for mashing together with some first-person player interventions... so I forked the code base (GitHub) and made a few fixes noted in a helpful issues thread.
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I decided to merge some of the Unity FPS tutorial assets, but switched the weapon projectiles from doing damage to delivering live-attenuated vaccines with simplified Sabin-like polio vaccine properties of shedding, reversion, immune boosting, etc. (Well... compared to actual models, mine is not very realistic, since quickly waning immunity makes it more fun to play!)
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The bunnies hop around in search of food and water, but they also can now transmit infections -- both vaccine strain (blue) and reverted virulent (red) -- to other nearby bunnies!
Check it out online: https://play.unity.com/mg/other/bunny-hunt.
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