adminandClaude Opus 5.5
32cb5b4ba5
A sprite or collider could only be sized, turned and scaled through
the inspector. The scene view now draws a size gizmo on the selection,
so the common edits happen where the object is.
- Edges and corners set Width and Height. The opposite side stays
where it was, so the position moves by half the change. Sizes land
on whole units, at least 1.
- A circle collider has edge handles only and stays round. A polygon
or frame collider keeps its own corner editing and gets no size
handles.
- One knob on a stem above the top edge turns or scales. The first
5 px of the drag decide which: out from the centre scales, sideways
turns. The choice holds until the release, so one drag never does
both. Turning and scaling share one handle by the user's choice.
- Shift snaps a turn to 15 degrees. The turn adds up the swept angle,
so it goes on past a half circle instead of jumping back.
- The values are overrides of this placement, like "Fit to sprite".
A value equal to the asset's own clears the override. One drag is
one undo step.
- A handle reaches 7 px outwards but only half that into the object.
Otherwise a press near the edge of a small sprite sizes it instead
of moving it.
- The rules live in src/editor/sizeGizmo.ts without Pixi. The handles
are drawn and driven by src/editor/viewport/sizeGizmoEditor.ts. The
test hook __gm.sizeGizmo() reports them in screen pixels.
Found on the way:
- The first e2e run failed the play-mode drag check in 41b. It grabs
the 40 px crate 6 px inside its bottom edge, and the full grip zone
took that as a resize. The half zone inside fixes it.
- A first gizmo check failed because the sprite's right edge lay
outside the scene view (x 940, view ends at 925). The test was
wrong, the sprite now sits further left.
Tests:
- ./check.sh: 156 files, 2283 tests, CHECK EXIT 0 (before 2273).
- 10 unit tests in tests/editor/size-gizmo.test.ts.
- 6 new e2e checks in 29j: handles present, edge resize with the
opposite edge fixed, undo, knob turn, knob scale that ignores a
later sideways pull, circle radius.
- e2e 1-16,29,39-43 on the final state: ALL PASSED, 663 checks.
- Counter-checks: deciding the knob mode on every move fails the
"does not turn it" check. Not moving the centre on an edge drag
fails both edge checks. A full grip zone inside fails the new unit
test. Originals restored.
- Check total 1357 + 6 = 1363, computed. CI measured 1357 at d257298.
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, 1363 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.