与Farseer Physics玩耍; 缩放比例让我很困惑

Question

I've dropped Farseer into my project and quickly started binding some circles to my enemies (this is a top-down) using FixtureFactory.AttachCircle(...) .

What's weird is I'm using regular pixel values to determine the radius of the circle and it's translating 1:1 into the size represented in Farseer. For example FixtureFactory.AttachCircle(32, 1f, body) correctly translates into a circle 64 pixels in diameter.

Why is that? Everything I've read on Google suggests to never go above 10 (meters) and to devise your own scale.

Am I missing some setting here to define the proportions of my world?

Answer 1

It seems that the Farseer engine uses MKS units (meters, kilorgrams, seconds).

This article gives a good example of how to convert this to simulation units.