melonjs-input SKILL.md skillA

melonjs-input from melonjs/melonjs is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add melonjs/melonjs/melonjs-input@git:20261102.3dad91b

Pins git:20261102.3dad91b 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-input/SKILL.md
Versions recorded
7
Latest version
git:20261102.3dad91b, committed Nov 2, 2026
First version recorded
Aug 31, 2026
Size
18,082 bytes
Repository stars
6,441
License
MIT

Use this skill for keyboard, pointer, mouse, touch and gamepad input in melonJS. Covers the bindKey action indirection, registerPointerEvent on regions, the isKinematic requirement that silently blocks pointer events, which of several overlapping objects receives an event and how to consume it, world vs screen pointer coordinates, and gamepad mapping onto the same actions. Triggers on: input, bindKey, isKeyPressed, KEY, registerPointerEvent, releasePointerEvent, pointerdown, pointerup…

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

# Input: keyboard, pointer and gamepad

## Keyboard goes through named actions

Do not poll key codes. Bind a key to an **action string**, then poll the action —
this is what lets gamepad and virtual controls map onto the same handling.

```js
import { input } from "melonjs";

input.bindKey(input.KEY.LEFT,  "left");
input.bindKey(input.KEY.RIGHT, "right");
input.bindKey(input.KEY.X,     "jump", true);   // true = locked: one press per keydown

// in update()
if (input.isKeyPressed("left"))  { /* … */ }
if (input.isKeyPressed("jump"))  { /* fires once per press, not per frame */ }
```

The third argument to `bindKey` is `lock` (default `false`). Without it,
`isKeyPressed` stays true for as long as the key is held — correct for movement,
wrong for jump or fire. A locked action stays consumed until the key is released
or you call `input.unlockKey("jump")`. Use `input.keyStatus(action)` when you
want the raw held/not-held state regardless of locking.

### A poll can miss a press entirely

`isKeyPressed` is sampled once per frame, and `keyup` decrements the key's
counter the moment it arrives — locked or not. A press that goes down and up
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add melonjs/melonjs/melonjs-input@sha256:945019c2c9734656

The line at the top of this page pins the label git:20261102.3dad91b, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_d4p5maizojbjts7x.svg)](https://markdownregistry.com/a/art_d4p5maizojbjts7x)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 7 versions of this file, between Aug 31, 2026 and Nov 2, 2026, about one every 11 days.

versioncommittedcommitsizeaudit
git:20261102.3dad91b latest2026-11-02 3dad91b 18,082 BA view · diff
git:20261101.d51487a2026-11-01 d51487a 16,070 BA view · diff
git:20261030.33bfc962026-10-30 33bfc96 16,008 BA view · diff
git:20261014.024378d2026-10-14 024378d 14,755 BA view · diff
git:20261011.ea100902026-10-11 ea10090 11,556 BA view · diff
git:20261003.0864abf2026-10-03 0864abf 10,295 BA view · diff
git:20260831.8e2f9be2026-08-31 8e2f9be 7,679 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (18082 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

GitHub

melonjs/melonjs · 6,441 stars · license MIT · pushed 2026-11-06 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_d4p5maizojbjts7x
GET https://markdownregistry.com/api/v1/resolve?ref=melonjs/melonjs/melonjs-input
GET https://markdownregistry.com/api/v1/blob/945019c2c97346560324c4fc252e40f03873237b10b6ad0d4e321a0b42afb19d

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.

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