adminandClaude Opus 5.5
84cd36f902
A pattern or song played by a game runs every note through the scheduler, the instruments and their FX, live. Bake works that out once, keeps it as a file on the asset, and Play pattern and Play song play the file instead, as one voice, for as long as nothing it is made of has changed. The tabs always play live. - Bake is an icon in the header of the Pattern and the Song tab, lit while the bake holds. A click bakes, cancels a bake that runs, or offers Bake again and Remove bake. The toolbar shows the progress. The info of the tab says "baked" or "bake outdated". - The bake holds everything up to the output of the pattern or song. The sound FX of the node, fx params, volume, fade in, bus, Master routing and stopping with a fade stay live. - A print of the worked-out plan decides whether it holds: notes and clips, tempo, length, loop, tracks, the build of each instrument for each note, sound FX, files, cuts and levels. A rename keeps it, an undo back to the baked state makes it hold again. - The file holds the straight run and then one more round of the loop as heard the second time, tails included. Looped, it plays to the loop end and then round that round, to the sample. Once, it fades out over its last 10 ms. Let ring fades it out over 0.3 s. - It is worked out by a second SoundLibrary on an OfflineAudioContext, its scheduler woken by suspends of the offline clock, and what reaches the master is taken. A worklet probe tells whether that was mono, so a mono bake goes on exactly as the notes did. - Opus in Ogg, 160 kbit/s stereo or 96 kbit/s mono, encoded with WebCodecs, the Ogg pages written by hand. Normalized to full scale, the peak kept and played back. - The file goes up into the sounds of the account as "[bake] name", which the sound picker leaves out. An old bake file is deleted once the project is saved without it. Only a bake that holds is loaded. - Ogg files are decoded at 48 kHz: resampled to 44.1 kHz, the loop of a bake lost a sample a round. - Baking and removing a bake are no undo steps, like the EQ's zoom. Findings: - Chrome's AudioEncoder refuses opus.format 'ogg' (NotSupportedError) but hands out the OpusHead with a pre-skip of 312 for 'opus'. - The Song tab's header is full at 1280 px: a captioned Bake pushed Fit off the tab. Hence the icon. Tests: - Unit: tests/core/ogg.test.ts (6), tests/core/bake.test.ts (16), four new in sound-library.test.ts, one in song-play.test.ts. One test cuts, reverses and fades a clip on a song's track: each change outdates the bake, each undo makes it hold again. - e2e 64 (melektaus-atx): ALL PASSED, 36 checks (6 new). Live and baked rendered offline differ by at most 0.06 dB over 114 windows of 20 ms, two loop ends among them. e2e 65 had no red check with the icon in its header. - Gate (melektaus-atx): CHECK EXIT 0, 277 files, 4281 tests. - Counter-checks: print without instrument builds, print taking the sound's file instead of the clip's cut, round taken from the first pass, bake voice without its looping source, Play pattern or Play song ignoring the bake: one unit test red each. Pre-skip set to 0: the e2e comparison 4.8 dB off, only that check red. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
7.6 KiB
7.6 KiB
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, 1928 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.