Files
feuerwerk/README.md
T
adminandClaude Opus 5 ae0247d86f Lists add and delete items right in the list header and rows
The layer, frame and shape lists still had their add and delete
buttons scattered below the list, each in its own layout. They now
live in the shared SortableList, so every list works the same way.

- SortableList gets an optional header with the title on the left
  and a + on the right, plus an optional x per row next to the eye.
- The keepOne option hides the x on the last remaining row, so a
  pixel art image and a tilemap always keep one layer.
- Pixel art layers and frames and tilemap layers use header, + and
  x. Only Merge down and Duplicate stay below the lists.
- Vector art shapes get the x but no +. Add shape stays below the
  list and Delete shapes stays for a multi-selection.
- The section headings in the pixel art column use the same style
  as the list titles and the inspector.

Findings:

- The wait loop added to check 47i for #196 only waited for the
  right half of the shape. If the texture landed between the two
  reads, the left half was still blue and the check failed. It now
  waits for both halves.

Tests:

- ./check.sh: 138 files, 2052 tests, exit 0.
- GM_STEPS=39,40,47,48 (fresh): ALL PASSED, 156 checks (was 154).
- GM_STEPS=47,48 (fresh, final): ALL PASSED, 86 checks.
- Two new e2e checks: x on a shape (47) and x on a frame (48). The
  tilemap check in 40 now uses the x instead of Delete layer.
- Counter-check: with the x not reporting to its owner, exactly the
  two new checks fail.
- Check total 1266 in README and wiki is computed (1264 + 2).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-21 21:18:26 +02:00

6.0 KiB
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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, 1266 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.