adminandClaude Opus 5.5
e933fad446
A shader ran only inside the rectangle of what wears it: the quad has the size of the sprite, and outside of it no fragment runs. An outline or a glow built with Sample texture was cut off at the border. The issue still spoke of Filter.padding, but since #77 the shader is no filter any more, the limit is the geometry. - The Output node has a number Padding next to Edge: so many pixels of the picture per side the wearer draws beyond it. 0 is the default and draws as before, 256 is the most. - The quad grows and its UVs grow with it, so the picture keeps its place and size. In the margin the UVs run on below 0 and above 1. - Transparent is a fourth Edge mode: outside of the picture there is nothing. It is cut in the fragment (texelAt), so it needs no copy of the picture with an address mode of its own. - Edge holds everywhere alike, also for Texture color, Texture alpha and unconnected inputs. - Padding above 0 with Edge on Clamp puts the hint "Padding with Clamp smears the border" on the Output. The shader still compiles. A chosen Clamp and the default cannot be told apart. - All four wearers draw the margin. A sprite counts in pixels of its frame, a text in its units, a particle source grows every particle about its centre. - A nine-slice sprite gets a ring around its nine fields, as wide as so many border pixels. The fields themselves stay. - Without a picture a pixel is one unit of the wearer's own size, or of the particle size. - Particles now take the Edge mode of their shader. It had no effect on them before. - An object wearing a padded shader is never culled, or its margin would vanish at the edge of the screen. - The preview in the shader tab shows the margin and leaves room for it. - Picking, the selection frame, the size and the collider stay with the rectangle without the margin. Tests: - Gate on melektaus-atx right before this commit: 216 files, 3336 tests (3319 + 17), exit 0. - e2e 28,30,31,37,41 on melektaus-atx: 178 checks, all pass. e2e 1-37,47,48,58 ran before the last change (no culling with padding): 1281 checks, all pass. - 17 new unit tests: the compiler (padding, Transparent, the hint) and the geometry (quad, nine-slice ring). - Seven new e2e checks: four at the sprite in module 28, one each for text, particles and nine-slice. - 17 unit counter-probes all fail their tests. Three browser counter-probes fail their checks (5, 3 and 1 of them). - Three screenshots looked at: the sprite with Clamp and margin in the scene, the preview in the shader tab, the text. - The e2e sum of 1687 is counted (1680 + 7), the full suite and the smokes did not run. - Not seen: the hint at the node in a picture, particles and nine-slice in a picture, the game view while playing, sprites without a picture, vector and pixel art pictures. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
6.8 KiB
6.8 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, variables, struct, collider, rigidbody, container, clip area, texture, vector art, pixel art, palette, animation, curve, tile, tilemap, state machine, shader, font, sound, particles) 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. Release… shares a link that plays the saved game on its own, without the editor and without signing in.
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, 1687 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.