melonjs-lighting SKILL.md skillA
melonjs-lighting 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-lighting@git:20261030.3d5fa8aPins git:20261030.3d5fa8a 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-lighting/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261030.3d5fa8a, committed Oct 30, 2026
- First version recorded
- Aug 31, 2026
- Size
- 10,771 bytes
- Repository stars
- 6,441
- License
- MIT
Use this skill for 2D dynamic lighting in melonJS — Light2d, ambient light on a Stage, multiple lights, and per-pixel normal-mapped sprites authored in SpriteIlluminator. Covers specular highlights via shininess, the ambient-cutout model, which parts need a GPU backend, and why Light2d does not survive a Camera3d. Triggers on: Light2d, specular, shininess, highlight, glint, lighting, ambientLight, ambientLightingColor, normalMap, SpriteIlluminator, per-pixel lighting, drawLight, torch, glow…
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
# 2D dynamic lighting
> `Light2d` is a world renderable that cuts through a stage's ambient darkness.
> The glow and the cutout work on every backend; only per-pixel normal-map
> shading needs a GPU one. It is 2D-only.
## The model: ambient darkness plus cutouts
The `Stage` holds an ambient colour — a dark sheet painted over the scene after
the world is drawn — and each active `Light2d` punches a hole in it at its
visible area. The lights themselves are drawn additively on top.
```js
class PlayScreen extends Stage {
onResetEvent(app) {
this.ambientLight.parseCSS("#1a1a2e"); // the darkness
app.world.addChild(new Light2d(x, y, radiusX, radiusY, "#ffddaa", 0.9));
}
}
```
The constructor is `Light2d(x, y, radiusX, radiusY = radiusX, color = "#FFF",
intensity = 0.7)`, and `pos` is the light's **centre** — its `anchorPoint` is
`(0.5, 0.5)`, and `centerX` / `centerY` are overridden to return `pos` directly.
Give `radiusY` a different value for a stretched, elliptical light.
A `Light2d` added to the world **registers itself with the stage's ambient
overlay on activate**, so you add it like any other renderable and it takes part
…Read the whole file at its exact version.
How to install
mdr add melonjs/melonjs/melonjs-lighting@sha256:ace3dfaa8fe75fb4The line at the top of this page pins the label git:20261030.3d5fa8a, 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_csy2ltcrscb23rud)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Aug 31, 2026 and Oct 30, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261030.3d5fa8a latest | 2026-10-30 | 3d5fa8a | 10,771 B | A | view · diff |
| git:20261025.d9abca5 | 2026-10-25 | d9abca5 | 10,712 B | A | view · diff |
| git:20261024.d7db994 | 2026-10-24 | d7db994 | 10,271 B | A | view · diff |
| git:20261023.988ab1f | 2026-10-23 | 988ab1f | 8,644 B | A | view · diff |
| git:20260918.8bab160 | 2026-09-18 | 8bab160 | 8,575 B | A | view · diff |
| git:20260831.8e2f9be | 2026-08-31 | 8e2f9be | 6,459 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 (10771 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_csy2ltcrscb23rud GET https://markdownregistry.com/api/v1/resolve?ref=melonjs/melonjs/melonjs-lighting GET https://markdownregistry.com/api/v1/blob/ace3dfaa8fe75fb4319805777e4be10facfebeb0798ff6c01a0ac7cec5b2a2ca
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.