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feuerwerk/README.md
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adminandClaude Opus 5.5 2d4909d248 Fit the Compressor's tab to any size, make auto-gain a switch (#378)
Two things came up on the new tab. Floated and sized down, it spilled
its knobs out of its window, and sized up it left the window empty.
Auto-gain lifted far too much: it brought 0 dB back to 0 dB, which at
-40 dB, 4:1 and knee 6 is +28.1 dB, so a sound at -24 dB came out at
-6 dB. And as a knob from 0 to 1 it blended between makeup and
auto-gain, so at 1 the makeup knob did nothing.

Layout:

- The knobs stay on the bottom line, centred, with the help line
  above them.
- The levels fill the height left above. The curve is a square at
  their right, centred up and down. It grows with the tab from 180 to
  360 px and takes no more than 40 % of its width (picturesLayout).
- A floated window cannot be sized below what its pane needs. A pane
  says so in its minWidth and minHeight, and the Compressor's is every
  knob and the smallest pictures. Other panes keep 320 x 200.
- A pane put into an open window that is too small grows the window.

Auto-gain, as decided in #378:

- A Compressor's auto-gain gives back what it takes from a sound at
  -18 dB, so that one comes out as loud as it went in. At the numbers
  above that is +14.6 dB.
- Auto-gain is a switch on the Compressor, the Limiter and the
  Saturation alike, a setting and no longer an input. The makeup or
  output is added on top of it instead of being blended with it.
- A project from before reads a number as on above 0. Nodes never
  set keep their defaults: off on the Compressor, on on the other two.
- The tab shows the switch at the right of the knobs, with the dB it
  gives below it. With it on, the curve has a line at -18 dB from the
  curve up to the diagonal.
- Every level reading keeps the gain of its time. Before, the whole
  picture was read by the current makeup, so after a change the
  tinting of the last seconds was wrong or missing.

Findings:

- My first e2e run of the layout clicked Dock where it was before the
  window was sized up, so the window stayed open and the next check
  went red. The check reads the button again.

Tests:

- Gate (melektaus-atx): 282 files, 4344 tests (6 new)
- e2e 34 (melektaus-atx): ALL PASSED, 118 checks (2 new)
- Offline in Chrome: a sine at -18 dB through -24 dB and 4:1 came out
  at -17.92 dB with auto-gain on and -22.42 dB with it off.
- Counter-checks: the curve set at the top instead of the middle, and
  every reading read at a gain of 0, each fail exactly their test.
- Looked at the window in screenshots: at its least every knob and
  the switch show. At 1280 x 797 the levels fill the height, the
  curve is centred at the right and the knobs are at the bottom.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 00:57:26 +02:00

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Game Maker

game-maker

A browser-based tool "one step before a game engine": create assets (scenes, cameras, sprites), place them into scenes, tweak their properties in an inspector and press Play – all in one program, all drawn inside a single WebGL canvas.

Live: https://nockal.com/game-maker/ · Widget playground: https://nockal.com/game-maker/?playground

The documentation is the wiki: https://git.nockal.com/meleki/game-maker/wiki – every concept, node, tab and shortcut, plus the architecture and the development workflow. This file is the short way in.

In one screen

  • An asset is a named, typed thing (scene, camera, sprite, text, behavior, variables, struct, collider, rigidbody, joint, container, clip area, texture, vector art, pixel art, palette, animation, curve, tile, tilemap, state machine, shader, shader function, font, sound, sound FX, instrument, pattern, song, bus, particles) with properties and no position.
  • A scene object places an asset: position, sparse overrides of its properties, an optional parent. Only what differs from the asset is stored; the inspector paints it gold and offers ↺ / ↑.
  • A container is a reusable group edited once and placed many times; its content is resolved from the template on every read. A screen is a container switched on and off.
  • A behavior is logic as a node graph, placed like anything else and parented to the object it acts on. Play has no built-in behaviour – everything that happens is a graph.
  • An account owns projects: the editor asks for a user name and a password first, and each account sees only its own projects. The Account menu at the far right of the toolbar changes the password and signs out.
  • Play runs a throwaway copy of the project; every panel stays usable and Stop brings back exactly what was saved. Release… shares a link that plays the saved game on its own, without the editor and without signing in.

Quick start

Node 22 is required.

npm install
npm run dev          # http://localhost:5175/game-maker/dist/ – API calls are proxied to production
npm run check        # typecheck + lint + format:check + unit tests – the gate CI runs too
npm run build        # writes dist/ and regenerates index.html; the folder is what nginx serves

The browser suite and the three example games need a machine with a GPU:

node tools/seed-e2e.mjs && node tools/e2e.mjs      # the editor, 1949 checks (GM_STEPS=20 for one step)
                                                   #   every tool signs in first – see the Accounts page
node tools/seed-jumprun.mjs && node tools/smoke-jumprun.mjs
node tools/seed-tetris.mjs && node tools/smoke-tetris.mjs
node tools/seed-actor.mjs && node tools/smoke-actor.mjs

Every push runs all of it on the Gitea runners – the gate as one job, build and suite as another beside it – so locally take the gate plus the step your change touches and leave the full run to CI. Details, the GPU requirement and the detached runner are in Development.

Documentation

Page What it covers
Concepts Assets, scene objects, overrides, play mode, the camera, the console
Accounts Signing in and out, the accounts, who a project belongs to, what the check tools need
Scenes The edited scene, the start scene, and switching scenes from a graph
Scene editing Placing, z-order, hierarchy, the editor offset
Behaviors Node graphs: variables, the node set, structs and lists, loops, nesting, editing
Structs Struct assets: a named shape that struct variables, fields and Pack/Expand follow
Colliders Shapes (box, circle, capsule, polygon), collision events, blocking movement, one-way colliders and raycasts
Physics Rigidbodies, the collider material, gravity, the fixed step, joints
Textures Images, frames, nine-slice, the filter, upload limits
Vector art Pictures drawn from shapes: the pen, curves, gradients and texture fills, combining shapes
Pixel art Pictures painted pixel by pixel: the palette, the tools, layers and frames
Fonts Font assets, the picker, what a text falls back to
Sounds Sound assets and clips, Play sound, buses and the Master routing, sound FX
Instruments Instruments as node graphs, Chips and presets, the keys of the Instrument tab, Play note
Patterns Patterns and the piano roll, playing one in a loop or from a game
Songs Songs, their tracks and items, routing, recording, playing one from a game
Animations Animation assets and the Animation tab
Curves Easings drawn by hand, the Curve tab, using one on a key or a Lerp
Shaders Shader graphs that sprites, texts, particle fields and cameras wear, their node set, passes, shader functions
Particles Particle graphs: a particle as a function of its age
State machines The asset, named transitions, State branch, Set state and State transition
Containers Templates, instances, screens
Tiles The tile asset, plain tiles and the two autotile kinds, the pictures as animation steps, the Tile tab
Tilemaps The tilemap asset, painting in the scene view, layers, what it looks like in the game
Plugins Extending the editor: the plugin file, how it is loaded, switching one on and off, API v1
Keyboard Every shortcut
Architecture Stack, source layout, the rules that keep it organised
Development Commands, the e2e suite, the example games, CI
API The PHP JSON API and the project document

Ideas, gaps and bugs

They live in the issue tracker: https://git.nockal.com/meleki/game-maker/issues. What is not there yet is listed on the wiki's Home page.