adminandClaude Opus 5
3a68067079
Dragging a point only redrew once the hand stopped moving, which the user reported after stage 3 and which measures as a real backlog, not a feeling: every pointer move wrote the model and fired state.preview(), and a project event rebuilds the panels, the run in the editor and the picture the drawing is rasterised into. A mouse reports about 125 times a second while the screen takes 60, so the queue grew instead of the drawing moving. - Measured with a throwaway e2e probe sending 120 moves at the 8 ms of a real mouse, against a growing scene. Per move event: 10 -> 7 ms with an empty scene, 19 -> 4 ms at 40 objects, 36 -> 3 ms at 120. The 120 moves took 4173 ms before and 960 ms after, which is the time they were supposed to take. - New onFrame(key, fn) in src/ui/render.ts collects such work per key and runs it in the ticker before app.render(), because afterwards it would be one frame late in the picture. The rule lives in ui/ rather than in the canvas so a second caller gets it for free. - VectorArtCanvas only queues in pointermove now, and cancels its slot on pointer up, where the command writes the final state anyway. During the gesture the drag's own copy of the rings is the truth and the model is never read back, so nothing is lost by the delay. The same cost sits in the scene viewport, the texture tab and the graph, which all call preview() from their move handler. They are untouched: that is outside the reported bug. Tests: check.sh 127 files, 1883 tests, exit 0 (was 1878). Full e2e suite locally instead of CI only because the change sits in the render loop: ALL PASSED - 1172 checks, the sum unchanged - a timing check in the browser would flutter under CI load. Five new unit tests in tests/ui/render.test.ts. Two counter-checks hold: running the work after the frame fails one unit test, and taking the coalescing out of the canvas puts the measurement back at 36 ms and 4153 ms. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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, collider, rigidbody, container, texture, font, sound, animation, state machine, shader, particles, variables, tile, tilemap) 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.
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, 1172 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 runner – 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 |
| Colliders | Shapes (box, circle, capsule, polygon), collision events, blocking movement, one-way colliders and raycasts |
| Physics | Rigidbodies, the collider material, gravity, the fixed step |
| Textures | Images, frames, nine-slice, the filter, upload limits |
| Fonts | Font assets, the picker, what a text falls back to |
| Sounds | Sound assets and Play sound |
| Animations | Animation assets and the Animation tab |
| Shaders | Shader graphs a sprite wears, their node set, the properties they declare |
| 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.