gameinputjs
v13.2.7
Published
Browser library to upgrade the Gamepad API experience
Downloads
23
Maintainers
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Game-Input JavaScript Library
A client-side JavaScript module one can import to add good gamepad support to web-powered games or other gamepad-powered web applications.
Installation
GameinputJS's src
and img
folders need to be accessible in the distributed version of your website.
I would recommend setting up a package.json
script to help update a distributable copy of the library outside node_modules:
{
"name": "@me/my-client-webapp",
"scripts": {
"deps2lib": "shx rm -rf lib && shx mkdir lib && shx cp -r node_modules/gameinputjs lib/"
}
...
}
Which would allow you to run:
npm i --save-dev shx
npm i gameinputjs
npm run deps2lib
Usage
Import from within a Javascript module, construct it, and then use either the events or make a game loop that uses the properties.
import { GameInput, DetectedOS } from './lib/gameinputjs/src/gameinput.js'
import { GameInputSchemaSectionNames, GameInputSchemaButtonNames } from './lib/gameinputjs/src/gameinput-schema.js'
const gameInput = new GameInput()
Event-Driven Style
gameInput
.onReinitialize(() => {
console.debug("Players updated")
const firstPlayer = gameInput.getPlayer(0)
if (!firstPlayer?.model) {
noPlayers()
return
}
displayButtons(firstPlayer)
document.querySelector('img.gamepad').src = `img/${firstPlayer?.model?.iconName ?? 'generic'}.png`
})
.onButtonDown((playerIndex, sectionName, buttonName) => {
const player = gameInput.getPlayer(playerIndex)
console.debug(`Player ${player} pushed ${player.getButtonText(sectionName, buttonName)} (${buttonName})`)
})
.onButtonUp((playerIndex, sectionName, buttonName) => {
const player = gameInput.getPlayer(playerIndex)
console.debug(`Player ${player} released ${player.getButtonText(sectionName, buttonName)} (${buttonName})`)
if (sectionName === 'center' && buttonName === 'menu') {
console.debug('menu requested')
return
}
if (sectionName === 'face' && buttonName === player.schema.ordinalButton(0)) {
console.debug('Jump / Confirm pushed')
}
})
Game-Loop Style
function gameLoop() {
for (const player of gameInput.Players) {
if (!player)
continue
if (player.state.face.ordinal(0))
player.rumble({ duration: 200, weakMagnitude: 1.0, strongMagnitude: 0.25 })
const leftStick = player.getStickVector('left')
console.debug(`Player left stick vector is ${leftStick.toString()}`)
requestAnimationFrame(() => gameLoop())
}
}
requestAnimationFrame(() => gameLoop()) // kick off