The scene view drew its symbols from its own SVGs, each in a type colour and some on a plate. They looked heavier than the panel icons and were hard to read on busy ground. Symbols of different objects also sat on top of each other whenever their positions met. - Every symbol is now the panel icon of its kind, one file for both places. The scene-only SVGs in src/viewport/icons are gone. - Symbols are white in a thin dark outline with no plate behind them. haloSvg widens each shape of the file by its own stroke and draws that silhouette dark under the icon, so no second file is needed. - A butt stroke end would leave its end without outline. The halo caps such strokes square, and the rigidbody arrow shaft is now a filled rect so its top edge is outlined exactly. - Symbols are 18 world units across, stay upright and are clickable. A click selects the object, a drag moves it. - symbolLayout places every symbol on its object's position. Symbols that overlap stand on a ring round the middle of their positions, evenly spaced one icon apart. A ring that reaches into another symbol takes it in until nothing overlaps. Ownership plays no part. - Names sit beside their symbol, on the outside of a ring. Selection frames and parent links follow the symbol. - A collider icon no longer shows trigger or invalid state. The outline colour of the shape still does. - A lone collider sits on its sprite's middle again. A press there on an unselected sprite drags the collider, so e2e 02 and 16 now grab the sprite beside its middle. Hook __gm.container.objectRect helps 16 find that spot. Tests: - check.sh: 2245 tests, CHECK EXIT 0 (+8 for layout and halo) - e2e 1-16,31,39-43: 670 PASS, 2 FAIL. Both were sampling too strictly for the thinner, smaller icons. 5c looked for the exact outline colour, which the thin outline only reaches blended at this zoom. 31n started the ring scan one pixel past the smaller ring. Both are fixed, and e2e 5,31 then passed with 48 checks. - 5c checks white with an outline and none of the old colours, 41b checks the ring positions and that a click on a symbol selects its object, 31n checks the now white particle ring. - Counter-checks: without the halo only 5c fails, also with the looser outline match. Without the layout the ring and click checks in 41b fail. Originals restored by cmp. - The e2e check total stays 1351. Co-Authored-By: Claude Opus 5.5 <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, vector art, pixel art, palette, 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, 1351 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 |
| 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 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.
