melonjs-scenes-and-state SKILL.md skillA
melonjs-scenes-and-state from melonjs/melonjs is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add melonjs/melonjs/melonjs-scenes-and-state@git:20261106.62cc59fPins git:20261106.62cc59f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- melonjs/melonjs
- Path
packages/melonjs/skills/melonjs-scenes-and-state/SKILL.md- Versions recorded
- 9
- Latest version
- git:20261106.62cc59f, committed Nov 6, 2026
- First version recorded
- Sep 29, 2026
- Size
- 19,308 bytes
- Repository stars
- 6,441
- License
- MIT
Use this skill for scene structure and game flow in melonJS — Stage subclasses, the state manager, transitions, pausing, the update loop, timers and tweens. Covers onResetEvent versus the constructor, state.set before state.change, the camera and world lifecycle per stage, and pause-aware timing. Triggers on: Tween, easing, fade out, flash, pulse, punch, shrink back, ease in, ease out, animate over time, countdown in update, Stage, state, state.set, state.change, state.transition, state.pause…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Scenes, game state and timing
## Stages and the state manager
A `Stage` is a screen. Register it against a state id, then change to it:
```js
import { Stage, state } from "melonjs";
class PlayScreen extends Stage {
onResetEvent(app) { /* build the scene */ }
onDestroyEvent(app) { /* tear it down */ }
}
state.set(state.PLAY, new PlayScreen()); // register first
state.change(state.PLAY); // then switch
```
Built-in ids: `state.LOADING`, `state.MENU`, `state.READY`, `state.PLAY`,
`state.GAMEOVER` (no underscore), `state.GAME_END`, `state.SCORE`,
`state.CREDITS`, `state.SETTINGS`, `state.DEFAULT`. `state.USER` (100) is the
base for your own ids — `const CUTSCENE = state.USER + 1`.
**Build scene content in `onResetEvent`, not the constructor.** `onResetEvent`
runs on *every* entry to the state; the constructor runs once. Scene content
created in the constructor exists once and is not rebuilt when you return.
`onResetEvent(app)` receives the `Application` — use that rather than importing
the global `game`.
Extra arguments to `state.change` are forwarded:
```js
state.change(state.PLAY, false, { level: 2 }); // → onResetEvent(app, { level: 2 })
…Read the whole file at its exact version.
How to install
mdr add melonjs/melonjs/melonjs-scenes-and-state@sha256:3117e05d918e0ffbThe line at the top of this page pins the label git:20261106.62cc59f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_tcbp5a7tvop4bsju)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between Sep 29, 2026 and Nov 6, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261106.62cc59f latest | 2026-11-06 | 62cc59f | 19,308 B | A | view · diff |
| git:20261105.7570a25 | 2026-11-05 | 7570a25 | 18,660 B | A | view · diff |
| git:20261028.0858424 | 2026-10-28 | 0858424 | 17,964 B | A | view · diff |
| git:20261028.6736161 | 2026-10-28 | 6736161 | 17,416 B | A | view · diff |
| git:20261021.ce5ddcd | 2026-10-21 | ce5ddcd | 16,832 B | A | view · diff |
| git:20261011.ea10090 | 2026-10-11 | ea10090 | 16,420 B | A | view · diff |
| git:20261009.e9d134f | 2026-10-09 | e9d134f | 15,763 B | A | view · diff |
| git:20261004.ffe5321 | 2026-10-04 | ffe5321 | 15,755 B | A | view · diff |
| git:20260929.f3f1e76 | 2026-09-29 | f3f1e76 | 12,263 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (19308 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
melonjs/melonjs · 6,441 stars · license MIT · pushed 2026-11-06 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_tcbp5a7tvop4bsju GET https://markdownregistry.com/api/v1/resolve?ref=melonjs/melonjs/melonjs-scenes-and-state GET https://markdownregistry.com/api/v1/blob/3117e05d918e0ffbc2f7078db16aaaf35916343b581f0874822488bed89445da
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.