Show HN: I released my first Android game: “Black Hole Escape”

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9 pointspsy_5 comments

It's pretty easy to get a high score by keeping the finger on the display. Just got 299 without doing anything.

yep, I also found this bug. It will be fixed in the next release. ty for you feedback. :)

As a fellow physics geek mobile dev (eg. ThreeBody, Geodesic Asteroids) I gotta ask: how are you modelling the gravitational force?

Each frame, I calculate the velocity (x/y) of each objects based on their distance between the object and the center (target). Then, I apply a linear velocity on the body + the rotation based on the angle. I've used Box2D for that

Here is a part of the code (lua, LÖVE framework) : https://gist.github.com/psych0pat/2b7c8f52b9191f28ef8f

It's a bit dirty but it's working :)

Thanks for the snippet.

Working code is a good thing. I tend to rat-hole on the physics stuff, since I have a background in it.

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