adminandClaude Opus 5.5
89aa92d2e3
A text could not wear a shader, and a pixel font was always smoothed. Pixi's Text takes no custom shader. It also shares one texture between texts of the same content and style, and the filter is not part of that key, so two equal texts with different filters would overwrite each other. - TextPicture rasters a text into a texture of its own and draws it like a sprite. Shader, time animation and edge mode work without a special path. A new text, font or size rasters again and keeps the shader. - The old texture is dropped only after the shader holds the new one. Before, Pixi warned about a destroyed texture that was still bound. - A text has a Shader row with the shader's property rows below, as a sprite has. Overrides, saving, animation and the Properties node (type Text) know them. A shader parameter named like an own row of the text loses to that row, as on the particle source. - The font asset has a Filter row, Linear or Nearest. The row existed three times already (texture, vector art, pixel art) and is now one helper filterRow. - Nearest rasters the text 8 times finer and cuts every 8x8 block to one texel: at least half covered is full, else empty. Chrome on Windows smooths canvas text sideways through DirectWrite whatever filter we set later. The cut removes those half pixels on every system, and the texture stays one texel per world unit. Found on the way: - On a font that is no pixel font thin strokes break apart under Nearest. For a pixel font at its own size this does not matter. Not done: - The preview in the Shader tab does not take a selected text as its picture, it shows the test picture then. Tests: - ./check.sh: 189 files, 2759 tests, CHECK EXIT 0. - text-shader.test.ts with 10 tests: rows and name precedence, a clamped override, save and load, animation, the font filter, and sharpCoverage on a smoothed edge and at the texture border. - e2e 30 has 7 new checks: red glyphs through the shader picked with the mouse, the shader survives a new text, red in the game, soft edges under Linear, clean 4x4 blocks under Nearest, and half covered texels (Linear 238, Nearest 0). - Full local run before the Nearest cut: all passed, 1543 checks. GM_STEPS=1,30 on the final bundle: all passed, 32 checks. The sum 1544 in the README is counted from these two runs, not measured. - Counter-checks fail as expected: in the browser no shader on a text fails 30h-30j, an always linear sampler fails the Nearest check, the old 1:1 raster leaves 107 half covered texels and fails 30k-ii. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
6.7 KiB
6.7 KiB
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, 1544 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.