Magnet class doesn't behave like a magnet

[stephanbogner]

We (@b-g and me) used the magnet class in the "attractor duo" example and noticed that it might not behave like an actual magnet 😆

I think in reality once an element comes closer to one magnet, it would snap towards that magnet, because pull force is not linear to distance.

Apparently the pull force of a magnet follows the "inverse square law".

Maybe you know more @ByronStar

[ByronStar]

I have added Newton's Law of Gravity to the Magnet class as defined in https://github.com/liabru/matter-attractors/blob/master/build/matter-attractors.js libaru's MatterAttractor plugin. The attractor duo example is changed accordingly. The static bodies need mass defined - otherwise ist is Infinite. Please have a look @stephanbogner and comment if this is not the desired result.

[stephanbogner]

@ByronStar Thanks for fixing this 👍 I renamed the example back to magnet and magnet-duo and reexported the docs

The static bodies need mass defined - otherwise ist is Infinite. That is good to know too!