kaosat-dev

ckaos@pop-os:~/dev/experiments/flecs$ bake run ecs_collisions
[  build] package cglm => '/home/ckaos/bake/src/cglm'
[  build] package flecs => '/home/ckaos/dev/experiments/flecs/flecs'
[  build] package flecs.meta => '/home/ckaos/bake/src/flecs-meta'
[  build] package flecs.util => '/home/ckaos/bake/src/flecs-util'
[    50%] ringbuf.c
In file included from /home/ckaos/bake/src/flecs-util/include/flecs_util.h:5,
                 from /home/ckaos/bake/src/flecs-util/src/ringbuf.c:3:
/home/ckaos/bake/src/flecs-util/include/flecs-util/ringbuf.h:15:1: error: unknown type name ‘FLECS_UTIL_EXPORT’; did you mean ‘FLECS_UTIL_API’?
   15 | FLECS_UTIL_EXPORT

kaosat-dev

QuickJS: creating a shared c module and import it as a module in js

• After a day exploration and a lot of frustration, finaly some clarity found thanks to https://github.com/khanhas/minnet-quickjs

preparing the .c/.h files

• the first few lines of your .c/.h files are very important !
  • #define countof(x) (sizeof(x) / sizeof((x)[0])) => this one should be copy & pasted, or inclued

• the JS_INIT_MOULE is also critical as quickjs relies on that ! typos are critical (spent an hour on a typo ...)

kaosat-dev

// with difference only, assuming that the details of partWithCuts are known (otherwise it cannot work)
const partWithCuts = () => {
  const block = cube()
  const cutOut = cylinder()
  const cutOut2 = cylinder()
  // not useable, information about cut is lost
  // return difference(block, cutOut, cutout2)
  return {keep: [block], remove: [cutOut, cutOut2]}
}

kaosat-dev

const projection = function (params, ...csgs) {
  const defaults = {
    plane: [0, 0, 1, 1],// x, y, z, w : as an array, magically simple !! 
    cut: false
  }
  const {plane, cut} = Object.assign({}, defaults, params)

  const [x, y, z, w] = plane
  // for now we still have to convert arrays to something way more complicated internally , sigh
  const orthobasis = new CSG.OrthoNormalBasis(new CSG.Plane(new CSG.Vector3D([x, y, z]), w)) 

kaosat-dev

use require in a codepen

1. click on the little icon Open JS Settings on the JavaScript editor pane
2. Then add the following link under Add External Javascript

https://cdn.rawgit.com/serapath/e2b55cab315e60fbbffea7b43acd8749/raw/a2709905ca06830f78d6069b97cda1f18eb9ef4c/require.js

3. Press Save & Close and start using the require(...) in your JavaScript code on codepen

kaosat-dev

/node_modules/
module.js

kaosat-dev

CSG.js notes:

• CAG : any boolean ops converts to CSG and back again !
  • sides are very inneficient data structures : there are duplicates of every points! (end of one side, start of next)
  • CAG’s could retain api by just providing accessors to underlying data structures
• Vertex vs Vector :
  • potentially redundant ? needs more investigating
  • “only” has an extra ‘tag’ field nothing more
• methods that can be easily extracted (barely any ‘this’ references, if at all, etc)
  • overCutInsideCorners

• used in tests only => good candidate

kaosat-dev

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kaosat-dev

Auto-deploying built products to gh-pages with Travis

This is a set up for projects which want to check in only their source files, but have their gh-pages branch automatically updated with some compiled output every time they push.

Create a compile script

You want a script that does a local compile to e.g. an out/ directory. Let's call this compile.sh for our purposes, but for your project it might be npm build or gulp make-docs or anything similar.

The out/ directory should contain everything you want deployed to gh-pages. That almost always includes an index.html.

kaosat-dev

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