Hi, I'm the author the post. I agree that it is important to know how things work without 3rd party helpers, regardless of whether you'd use a game engine / li

Hi, I'm the author the post. I agree that it is important to know how things work without 3rd party helpers, regardless of whether you'd use a game engine / library later or not. However, the post on the Hacks blog presents some articles and demos we created for the MDN and IMHO the title is appropriate, since one of the two articles introduced (https://developer.mozilla.org/en-US/docs/Games/Techniques/3D_collision_detection https://developer.mozilla.org/en-US/docs/Games/Techniques/3D...) is generic and it's about algorithms in raw JavaScript. I just thought there would be value too in showing how to do collision detection using one of the most popular 3D graphics library and a physics engine as well, since that would be the most common case when people are developing games (versus making an engine)