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adminandClaude Opus 5.5 9917253751 Open a Compressor as a device in a window of one size (#379) 
The tab from #378 shows a Compressor as an editor. The user wanted it
to look like a device as well, after a brushed aluminium plug-in, with
a meter of the gain reduction instead of the pictures. The tab stays
and is switched to per node.

- Hardware look is a switch under Settings, on by default for new and
  existing Compressors. Only the editor reads it.
- The panel is 820x280 px and opens straight in a window of that size.
  The window has no sizing corner and no Dock. A pane says so through
  `fixedSize`, and `keptSize` keeps the window's middle when it
  changes to that size.
- A Compressor in this look never sits in the tab row. Opening one
  floats it, and switching the look on moves its tab into the window.
- The panel has chrome knobs (threshold and makeup large), a meter
  with a needle that moves like a VU's, an LCD with the name and the
  reading, a lever with a lamp for auto-gain, and LEDs for the level
  going out. Everything is drawn in code.
- The Knob takes a size and a chrome look, and leaves out its caption
  when it has no name, so the panel engraves its own.
- `autoGainOn` is now `switchOn`, because the new switch reads the
  same way.
- Where parts sit, the meter's scale, the needle's speed, the LEDs and
  the plate's grain are in `hardwareView.ts`, apart from the drawing.

Decided myself:
- The meter's scale runs by the square root, so the first dB is about
  as wide as the last nine. It is red from 10 dB on.
- The LEDs light one every 3 dB from -39 to 0 dB and fall by 20 dB a
  second.
- Switching the look changes the graph's fingerprint, like any other
  setting of a node. The sound FX is built again once.

Findings, fixed on the way:
- Pixi's `arc` goes on from the last point of the path. The meter's
  scale had a line from the corner of the face until each arc got a
  `moveTo` to its own start.
- A text put into a Graphics makes Pixi warn that only Containers take
  children. The LCD is a Container now.
- The first browser check read the needle at one moment and missed the
  short sound. The panel keeps the most its needle and LEDs showed.

Tests:
- Unit: hardware-view (10 new), documents (1 new)
- e2e 34 (melektaus-atx): ALL PASSED, 122 checks (4 new). Played,
  the needle reached 20.9 dB and 5 LEDs lit.
- Gate (melektaus-atx): CHECK EXIT 0, 283 files, 4355 tests (11 new)
- Counter-checks: a window that keeps its corner instead of its
  middle, and a linear meter scale, each turn exactly their test red.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 02:06:56 +02:00

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# Game Maker
[![game-maker](https://git.nockal.com/meleki/game-maker/actions/workflows/ci.yml/badge.svg?branch=main)](https://git.nockal.com/meleki/game-maker/actions?workflow=ci.yml)
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.
![](screenshot.png)
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.
```bash
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:
```bash
node tools/seed-e2e.mjs && node tools/e2e.mjs # the editor, 1953 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](https://git.nockal.com/meleki/game-maker/wiki/Development).
## Documentation
| Page | What it covers |
|---|---|
| [Concepts](https://git.nockal.com/meleki/game-maker/wiki/Concepts) | Assets, scene objects, overrides, play mode, the camera, the console |
| [Accounts](https://git.nockal.com/meleki/game-maker/wiki/Accounts) | Signing in and out, the accounts, who a project belongs to, what the check tools need |
| [Scenes](https://git.nockal.com/meleki/game-maker/wiki/Scenes) | The edited scene, the start scene, and switching scenes from a graph |
| [Scene editing](https://git.nockal.com/meleki/game-maker/wiki/Scene-editing) | Placing, z-order, hierarchy, the editor offset |
| [Behaviors](https://git.nockal.com/meleki/game-maker/wiki/Behaviors) | Node graphs: variables, the node set, structs and lists, loops, nesting, editing |
| [Structs](https://git.nockal.com/meleki/game-maker/wiki/Structs) | Struct assets: a named shape that struct variables, fields and `Pack`/`Expand` follow |
| [Colliders](https://git.nockal.com/meleki/game-maker/wiki/Colliders) | Shapes (box, circle, capsule, polygon), collision events, blocking movement, one-way colliders and raycasts |
| [Physics](https://git.nockal.com/meleki/game-maker/wiki/Physics) | Rigidbodies, the collider material, gravity, the fixed step, joints |
| [Textures](https://git.nockal.com/meleki/game-maker/wiki/Textures) | Images, frames, nine-slice, the filter, upload limits |
| [Vector art](https://git.nockal.com/meleki/game-maker/wiki/Vector-Art) | Pictures drawn from shapes: the pen, curves, gradients and texture fills, combining shapes |
| [Pixel art](https://git.nockal.com/meleki/game-maker/wiki/Pixel-Art) | Pictures painted pixel by pixel: the palette, the tools, layers and frames |
| [Fonts](https://git.nockal.com/meleki/game-maker/wiki/Fonts) | Font assets, the picker, what a text falls back to |
| [Sounds](https://git.nockal.com/meleki/game-maker/wiki/Sounds) | Sound assets and clips, `Play sound`, buses and the Master routing, sound FX |
| [Instruments](https://git.nockal.com/meleki/game-maker/wiki/Instruments) | Instruments as node graphs, Chips and presets, the keys of the Instrument tab, `Play note` |
| [Patterns](https://git.nockal.com/meleki/game-maker/wiki/Patterns) | Patterns and the piano roll, playing one in a loop or from a game |
| [Songs](https://git.nockal.com/meleki/game-maker/wiki/Songs) | Songs, their tracks and items, routing, recording, playing one from a game |
| [Animations](https://git.nockal.com/meleki/game-maker/wiki/Animations) | Animation assets and the Animation tab |
| [Curves](https://git.nockal.com/meleki/game-maker/wiki/Curves) | Easings drawn by hand, the Curve tab, using one on a key or a `Lerp` |
| [Shaders](https://git.nockal.com/meleki/game-maker/wiki/Shaders) | Shader graphs that sprites, texts, particle fields and cameras wear, their node set, passes, shader functions |
| [Particles](https://git.nockal.com/meleki/game-maker/wiki/Particles) | Particle graphs: a particle as a function of its age |
| [State machines](https://git.nockal.com/meleki/game-maker/wiki/State-machines) | The asset, named transitions, `State branch`, `Set state` and `State transition` |
| [Containers](https://git.nockal.com/meleki/game-maker/wiki/Containers) | Templates, instances, screens |
| [Tiles](https://git.nockal.com/meleki/game-maker/wiki/Tiles) | The tile asset, plain tiles and the two autotile kinds, the pictures as animation steps, the Tile tab |
| [Tilemaps](https://git.nockal.com/meleki/game-maker/wiki/Tilemaps) | The tilemap asset, painting in the scene view, layers, what it looks like in the game |
| [Plugins](https://git.nockal.com/meleki/game-maker/wiki/Plugins) | Extending the editor: the plugin file, how it is loaded, switching one on and off, API v1 |
| [Keyboard](https://git.nockal.com/meleki/game-maker/wiki/Keyboard) | Every shortcut |
| [Architecture](https://git.nockal.com/meleki/game-maker/wiki/Architecture) | Stack, source layout, the rules that keep it organised |
| [Development](https://git.nockal.com/meleki/game-maker/wiki/Development) | Commands, the e2e suite, the example games, CI |
| [API](https://git.nockal.com/meleki/game-maker/wiki/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](https://git.nockal.com/meleki/game-maker/wiki) page.
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