adminandClaude Opus 5
be8f2331de
TextureFrame carries optional `border` (left/right/top/bottom) and `fill` (stretch | repeat); absent keys mean "not sliced", so no format bump and undo restores the plain frame instead of four zeroes. The sliced sprite builds its own geometry instead of the shared UNIT_QUAD: a 4x4 grid, and for `repeat` one quad per tile carrying the frame cell's real UVs -- tiling in the geometry, not in the sampler, so a frame out of a sheet cannot pull its neighbour in. Above 64 tiles per axis it stretches, to bound the buffer. A sprite narrower than left+right scales both borders down together until the middle is exactly 0, so the corners meet at a seam and never overlap. The texture editor gets four draggable border lines plus the same four numbers in the inspector. Hit order is resize handles, then the lines, then the frame body -- handleAt reports 'move' anywhere inside a frame, so lines placed after it were unreachable. 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, container, texture, animation, state machine) 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.
- 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, 862 checks (GM_STEPS=20 for one step)
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, 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 |
| Scene editing | Placing, z-order, hierarchy, the editor offset |
| Behaviors | Node graphs: variables, the node set, structs and lists, loops, nesting, editing |
| Colliders | Collision events and blocking movement |
| Textures | Images, frames, the filter, upload limits |
| Animations | Animation assets and the Animation tab |
| State machines | The asset, named transitions, State branch, Set state and State transition |
| Containers | Templates, instances, screens |
| 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.