adminandClaude Opus 5.5
5fbc6eb088
Which of two events ran first depended on hidden lists: the order of the behavior instances and the order in which nodes were created. A graph had no way to say that one On update must run before another, and an On update of one behavior could run before a key event of another. - A frame now runs event kind by event kind over all behaviors: On disable and On enable, key down, key up, key held, timer, collision enter, stay and exit, animation finished, click, mouse wheel and at last On update. - All 17 event nodes have a field Order, a whole number, default 0, negative allowed. Within one kind a lower Order runs earlier, no matter which behavior holds the node. - On a tie the current hierarchy decides from top to bottom, then the order in which the nodes were created. The old rule that a behavior enabled later goes to the end is gone. - The node shows Order: 5 only when the value is not 0, so existing graphs look the same. - The rule lives as pure functions in core/graph/eventOrder.ts. The interpreter can now fire a single event node. Changes in existing projects: - An object destroyed in a frame gets no further event in that frame. On disable and On destroy still come at the end of the frame. - New instances get all their On start first, then all On enable. Teardown runs all On disable first, then all On destroy. - State events follow right after the event kind that caused them. - Four unit tests had fixed the old order and are adjusted: two in behavior-events, one in physics-system, one in key-repeat. Tests: - ./check.sh: 191 files, 2784 tests, CHECK EXIT 0. - GM_STEPS=1-6: ALL PASSED, 280 checks. - Full e2e run (local): ALL PASSED, 1551 checks, measured. - tests/core/event-order.test.ts: 11 tests for the rule, the field on all 17 nodes, order across behaviors, key before update, two nodes in one graph, On start, hierarchy after late enable and reorder at runtime, state events, save and load. - e2e 6z-viii, 2 checks with real mouse and keyboard: Order -1 set in the inspector shows on the node, and a run logs B, A although B is lower in the hierarchy. - Counter-checks: 5 in unit tests and 1 in the browser, all fail as expected. The originals were restored and checked with cmp. 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, 1551 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 |
| 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 |
| 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 |
| Curves | Easings drawn by hand, the Curve tab, using one on a key or a Lerp |
| 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.