2024-06-25 11:21:25 +02:00
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<!DOCTYPE html>
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2024-06-25 11:19:53 +02:00
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<html lang="fr">
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2024-06-25 11:21:25 +02:00
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Contrôle du robot</title>
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</head>
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<body>
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2024-06-25 14:55:30 +02:00
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<main>
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<h1>Contrôle du robot sans fils</h1>
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<p>
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Cette page permet de contrôler le robot depuis un PC portable
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connecté au WiFi du robot. Elle est destinée aux personnes
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n'ayant pas de smartphone.
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</p>
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<section class="infos">
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<div>
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<h2>Paramètres de contrôle</h2>
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<p>
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Ici vous pourrez paramétrer les contrôles du robot,
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rentrer son adresse IP ainsi que lui indiquer la
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distance à parcourir ou l'angle de rotation désiré.
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</p>
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</div>
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<div>
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<h2>Contrôle</h2>
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<p>
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Amusez vous ! Pour contrôler le robot, utilisez les
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flèches directionnelles pour le diriger et la barre
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espace pour le stopper.
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</p>
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</div>
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</section>
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<section class="inputs">
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<form class="settings" id="settings">
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<label>
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<span>Adresse IP du robot</span>
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<input
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type="text"
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name="ip-address"
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title="Adresse IP du robot (ex: 192.168.0.1)"
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pattern="\d+\.\d+\.\d+\.\d+(:\d+)?"
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placeholder="192.168.0.0"
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required
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/>
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</label>
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<button>Se connecter</button>
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</form>
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<div class="input-controls">
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<label>
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<span>Rotation en degrés</span>
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<input
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id="rotate-input"
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type="number"
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title="Rotation en degrés (-360° à 360°)"
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min="-360"
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max="360"
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step="1"
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placeholder="90"
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/>
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</label>
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<label>
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<span>Distance en cm</span>
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<input
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id="move-input"
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type="number"
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title="Distance en cm (-2^31 à 2^31)"
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min="-2147483647"
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step="1"
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max="2147483647"
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placeholder="10"
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/>
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</label>
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</div>
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</section>
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<section class="touch-controls" id="touch-controls">
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<span class="placeholder"></span>
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<button title="Avancer" data-command="forward" data-value="2">
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⬆️
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</button>
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<span class="placeholder"></span>
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<button
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title="Tourner à gauche"
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data-command="left"
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data-value="5"
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>
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⬅️
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</button>
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<button title="Arrêter" data-command="stop" data-value="0">
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⏸️
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</button>
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<button
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title="Tourner à droite"
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data-command="right"
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data-value="5"
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>
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➡️
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</button>
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<span class="placeholder"></span>
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<button title="Reculer" data-command="backward" data-value="2">
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⬇️
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</button>
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<span class="placeholder"></span>
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</section>
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</main>
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2024-06-25 11:21:25 +02:00
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</body>
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2024-06-25 12:27:16 +02:00
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<script type="module">
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2024-06-25 13:19:07 +02:00
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// Input handlers
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document
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2024-06-25 13:26:35 +02:00
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.querySelector('#move-input')
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.addEventListener('change', (event) =>
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assignCommands('backward', 'forward', event)
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)
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document
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.querySelector('#rotate-input')
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2024-06-25 13:19:07 +02:00
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.addEventListener('change', (event) =>
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assignCommands('left', 'right', event)
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)
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2024-06-25 14:02:59 +02:00
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// Buttons handlers
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for (const button of document
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.querySelector('#touch-controls')
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.querySelectorAll('button')) {
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button.addEventListener('click', () => {
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const { command, value } = button.dataset
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// Check datas are set for button
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if (command === undefined || value === undefined) {
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alert(
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`Pas de command ou de valeur assigné au bouton "${button.title}"`
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)
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throw new Error(
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`no command or value assigned to ${button.title}`
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)
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}
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// Check command is valid
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if (
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!['forward', 'backward', 'left', 'right', 'stop'].includes(
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command
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)
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) {
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alert(
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`La command "${command}" n'est pas valide en tant que ('forward', 'backward', 'left', 'right', 'stop')`
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)
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throw new Error(
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`specified command "${command}" is not in ['forward', 'backward', 'left', 'right', 'stop']`
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)
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}
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// Check value is valid finite number
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if (!Number.isFinite(Number(value))) {
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alert(
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`La valeur "${value}" n'est convertible en entier fini`
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)
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throw new Error(
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`value "${value}" cannot be casted to finite integer`
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)
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}
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sendCommand(command, Number(value))
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})
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}
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2024-06-25 13:19:07 +02:00
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// Keyboard handler
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document.addEventListener('keydown', ({ code }) => {
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if (code === 'ArrowUp') {
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2024-06-25 13:41:17 +02:00
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return sendCommand('forward', 2)
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}
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if (code === 'ArrowDown') {
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return sendCommand('backward', 2)
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}
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if (code === 'ArrowLeft') {
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return sendCommand('left', 5)
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}
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if (code === 'ArrowRight') {
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return sendCommand('right', 5)
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}
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if (code === 'Space') {
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return sendCommand('stop', 0)
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}
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})
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// Settings handler
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document
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.querySelector('#settings')
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.addEventListener('submit', async (event) => {
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// Don't interrupt event if not form submitting
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if (!(event instanceof SubmitEvent)) return true
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if (event.target === null) return true
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// Disable form sending
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event.preventDefault()
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const form = new FormData(event.target)
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const ipAddress = form.get('ip-address')
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if (ipAddress === null) return
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const endpoint = `http://${ipAddress}`
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await testEndpoint(endpoint)
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setEndpoint(endpoint)
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})
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2024-06-25 12:27:16 +02:00
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/**
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* A command string.
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* @typedef {('forward' | 'backward' | 'left' | 'right' | 'stop')} Command
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*/
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/**
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* Send command to the robot.
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*
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* @param {Command} command Command to send.
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* @param {number} value Value of the command if needed.
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2024-06-25 12:49:21 +02:00
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*
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* @returns {Promise<void>}
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*/
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async function sendCommand(command, value) {
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const endpoint = getEndpoint()
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const url = new URL(
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`/get?command=${command}&value=${value}`,
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endpoint
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)
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2024-06-25 12:49:21 +02:00
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const response = await fetch(url)
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const text = await response.text()
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console.log(text)
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}
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2024-06-25 12:46:11 +02:00
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/**
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* Get robot endpoint address.
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*
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* @returns {string}
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*/
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function getEndpoint() {
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const endpoint = sessionStorage.getItem('robot-endpoint')
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if (endpoint === null) {
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alert("Aucune adresse IP n'a été renseignée !")
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throw new Error('no given ip address')
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}
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return endpoint
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}
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/**
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* Set robot endpoint address.
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*
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* @param {string} ip Robot ip.
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*
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* @returns void
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*/
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function setEndpoint(ip) {
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sessionStorage.setItem('robot-endpoint', ip)
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}
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2024-06-25 12:58:11 +02:00
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/**
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* Test connection to endpoint.
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*
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* @param {string} endpoint Endpoint to test for.
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*
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* @returns {void}
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* @throws {Error} Endpoint unreachable.
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*/
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async function testEndpoint(endpoint) {
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try {
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const response = await fetch(endpoint)
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if (response.ok) return
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} catch (cause) {
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alert(`Impossible de joindre l'adresse "${endpoint}"`)
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throw new Error(`unable to connect to robot at ${endpoint}`, {
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cause,
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})
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}
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}
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2024-06-25 13:15:04 +02:00
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/**
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* Assign a command to an input.
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* Do negative command if value < 0 else do positive command.
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*
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* @param {Command} negativeCommand Command if value < 0.
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* @param {Command} positiveCommand Command if value >= 0.
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* @param {event} event Event of the input.
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*
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* @returns {Promise<void>}
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*/
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function assignCommands(negativeCommand, positiveCommand, event) {
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if (event.target === null) return
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/** @type {HTMLInputElement} */
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const target = event.target
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const value = target.valueAsNumber
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if (value < 0) {
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return sendCommand(negativeCommand, Math.abs(value))
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}
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2024-06-25 13:41:17 +02:00
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return sendCommand(positiveCommand, value)
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}
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2024-06-25 11:21:25 +02:00
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</script>
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<style>
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:root {
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--translucent-high: rgba(255, 255, 255, 0.8);
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--translucent-low: rgba(255, 255, 255, 0.4);
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--padding: 0.5rem;
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--padding-half: calc(var(--padding) / 2);
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--border-size: 0.2rem;
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}
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* {
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box-sizing: border-box;
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}
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html {
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scroll-behavior: smooth;
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}
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body {
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background-color: rgb(247, 234, 219);
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height: 100dvh;
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margin: 0;
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padding: 0;
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font-family: system-ui, -apple-system, BlinkMacSystemFont,
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'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans',
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'Helvetica Neue', sans-serif;
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}
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h1,
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h2 {
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margin: 0;
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}
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h1 {
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text-align: center;
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}
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main {
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padding: var(--padding);
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height: 100%;
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text-wrap: pretty;
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}
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|
2024-06-25 14:02:59 +02:00
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.touch-controls {
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|
display: grid;
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grid-template-columns: repeat(3, 1fr);
|
2024-06-25 14:55:30 +02:00
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gap: var(--padding);
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padding: var(--padding);
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button {
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height: 5.5rem;
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|
font-size: 3rem;
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border-radius: var(--padding);
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}
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}
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button {
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border: solid var(--border-size) var(--translucent-high);
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background: var(--translucent-high);
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border-radius: var(--padding-half);
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|
|
transition: all 0.2s ease;
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|
|
height: 100%;
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|
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font-size: 110%;
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&:active {
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border-color: var(--translucent-low);
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|
|
background-color: var(--translucent-low);
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|
|
|
|
}
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|
|
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|
}
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|
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|
.input-controls,
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|
|
.settings {
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|
|
padding: var(--padding);
|
|
|
|
|
display: flex;
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|
|
|
|
gap: var(--padding);
|
|
|
|
|
border: solid var(--border-size) var(--translucent-high);
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|
|
|
|
border-radius: var(--padding-half);
|
|
|
|
|
align-items: center;
|
|
|
|
|
justify-content: space-around;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.inputs {
|
|
|
|
|
display: grid;
|
|
|
|
|
grid-template-columns: repeat(auto-fill, minmax(700px, 1fr));
|
|
|
|
|
gap: var(--padding);
|
|
|
|
|
width: 100%;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.infos {
|
|
|
|
|
display: grid;
|
|
|
|
|
grid-template-columns: repeat(auto-fill, minmax(800px, 1fr));
|
|
|
|
|
flex-wrap: wrap;
|
|
|
|
|
gap: var(--padding);
|
|
|
|
|
justify-content: space-between;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
label {
|
|
|
|
|
display: grid;
|
|
|
|
|
gap: var(--padding);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
input {
|
|
|
|
|
border: solid var(--border-size) var(--translucent-high);
|
|
|
|
|
background: var(--translucent-low);
|
|
|
|
|
border-radius: var(--padding-half);
|
|
|
|
|
transition: all 0.2s ease;
|
|
|
|
|
height: 100%;
|
|
|
|
|
padding: var(--padding-half);
|
|
|
|
|
font-family: 'Courier New', Courier, monospace;
|
|
|
|
|
outline: none;
|
|
|
|
|
|
|
|
|
|
&:focus {
|
|
|
|
|
background-color: var(--translucent-high);
|
|
|
|
|
}
|
2024-06-25 14:02:59 +02:00
|
|
|
}
|
|
|
|
|
</style>
|
2024-06-25 11:19:53 +02:00
|
|
|
</html>
|
