Dne 31.10.2016 v 2:36 ketmar via Digitalmars-d-announce napsal(a): > hi. i was in need of very simple (yet usable for something more than > "hey, this is how Big Players doing physics!") 2d physics engine for > some of my pet projects, and i decided to use Box2D Lite as base (mostly > 'cause it has simple joints implemented). so i ported it, mutilated it > and had it working in less than 40 kb of source code. so far, so good. > but suddenly... > > but suddenly i realised that B2DL can operate only on boxes (no other > body shapes were implemented), and it has O(N^2) broad phase. of course, > this is perfectly fine for a demo purposes, but little limiting for my > projects. so after mutilating the patient, i surgically enhanced it a > little[1]. > > now my port supports the following features: > * convex polygonal bodies with different density > * SAT collistion detection > * hard and soft joints > * friction > * O(N*logN) broad phase > * source size is still ~65 KB > ...
Neat! Not that I need a physics engine right now, but it is always good to have implementation of some structures at hand. Anyway, tht Invisible Vector project of yours, is it a collection of useful stuff like Adam's arsd, or is some standalone project? I am asking, because it seems to contain some nice things (like a sat solver port) that may help others and could benefit from being more accessible than only with a programmer's spelunker gear. And I am saying this with full knowledge of your passionate hate for github and to some extent for dub. Martin
