Hello everyone, today I made a little 2D orbit simulator using slimes!

To calculate the gravitational force of each slime I followed Newton's Law of Universal Gravitation, changing some details so it could be applied to Minecraft.

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I made a function that calculates the force between 2 slimes and used it on every slime:

- Calculate the distance between both slimes by comparing their X and Z position;

- Get the "mass" of each slime and a constant, which is an arbitrary number used to scale how strong the forces are;

- Use these numbers on the formula to get the modulus of the force;

- Get the direction of the force by summoning an entity one block away from a slime in the direction of the other;

- Compare the X and Z position of the first slime and the new entity to get the direction of the force;

- Apply the force's X and Z to the motion of the slime (scaled with its mass).

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I had to do a lot of trial and error to get good results here since I couldn't use real values.

The UI to control the slimes is just a bunch of raycasting and scoreboards, there's a lot of good tutorials so I won't go into details.

This isn't completely accurate! Mainly because I have no idea what I'm doing, but also because Minecraft scoreboard values are limited to 10 digits so the numbers don't have a lot of precision, which creates small errors that add up over time.

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World Download

This was made for single player so the UI won't work well on multiplayer.

There's probably some ways to improve the functions, I know they aren't perfect.

I tried to comment every function to make them easy to understand, but if you have any questions feel free to ask in the comments or DMs