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One interesting aspect of collecting coins in a platformer like mario: it makes the level stateful.
You can see if you've been somewhere before based on whether there are coins present.
miniblog.
Related Posts
Fair criticism of Jupyter Notebooks, and how hard it is to apply good software engineering: https://medium.com/@alexander.mueller/5-reasons-why-jupyter-notebooks-suck-4dc201e27086
It's hard to transition from code in a notebook to standalone program or reusable library in my experience. I think a less stateful design would really help.
Web forms are stateful, not tidy POST requests. I shouldn't have to fill in a CAPTCHA a second time if my input elsewhere was bad.