133 lines
3.8 KiB
HTML
133 lines
3.8 KiB
HTML
<!--
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/*
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* Copyright 2019 Gregg Tavares
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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-->
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<style>
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body {
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background: #444;
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color: white;
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font-family: monospace;
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}
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#gamepads>* {
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background: #333;
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padding: 1em;
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}
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#gamepads pre {
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white-space: pre-wrap;
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}
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</style>
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<body>
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<h1>HTML5 Gamepad Test</h1>
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<div>running: <span id="running"></span></div>
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<div id="gamepads"></div>
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</body>
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<script>
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const runningElem = document.querySelector('#running');
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const gamepadsElem = document.querySelector('#gamepads');
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const gamepadsByIndex = {};
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function addGamepad(gamepad) {
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console.log('add:', gamepad.index);
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const elem = document.createElement('pre');
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gamepadsElem.appendChild(elem);
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gamepadsByIndex[gamepad.index] = {
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gamepad,
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elem,
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};
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}
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function removeGamepad(gamepad) {
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const info = gamepadsByIndex[gamepad.index];
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if (info) {
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delete gamepadsByIndex[gamepad.index];
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info.elem.parentElement.removeChild(info.elem);
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}
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}
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function addGamepadIfNew(gamepad) {
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const info = gamepadsByIndex[gamepad.index];
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if (!info) {
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addGamepad(gamepad);
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} else {
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// This broke sometime in the past. It used to be
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// the same gamepad object was returned forever.
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// Then Chrome only changed to a new gamepad object
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// is returned every frame.
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info.gamepad = gamepad;
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}
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}
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function handleConnect(e) {
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console.log('connect');
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addGamepadIfNew(e.gamepad);
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}
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function handleDisconnect(e) {
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console.log('disconnect');
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removeGamepad(e.gamepad);
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}
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const t = String.fromCharCode(0x26AA);
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const f = String.fromCharCode(0x26AB);
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function onOff(v) {
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return v ? t : f;
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}
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const keys = ['id', 'connected', 'mapping', /*'timestamp'*/];
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function processController(info) {
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const {elem, gamepad} = info;
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const lines = [`gamepad : ${gamepad.index}`];
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for (const key of keys) {
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lines.push(`${key.padEnd(9)}: ${gamepad[key]}`);
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}
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lines.push(`axes : [${gamepad.axes.map((v, ndx) => `${ndx}: ${v.toFixed(2).padStart(5)}`).join(', ')} ]`);
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lines.push(`buttons : [${gamepad.buttons.map((v, ndx) => `${ndx}: ${onOff(v.pressed)} ${v.value.toFixed(2)}`).join(', ')} ]`);
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elem.textContent = lines.join('\n');
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}
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function addNewPads() {
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const gamepads = navigator.getGamepads();
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for (let i = 0; i < gamepads.length; i++) {
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const gamepad = gamepads[i]
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if (gamepad) {
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addGamepadIfNew(gamepad);
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}
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}
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}
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window.addEventListener("gamepadconnected", handleConnect);
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window.addEventListener("gamepaddisconnected", handleDisconnect);
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function process() {
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runningElem.textContent = ((performance.now() * 0.001 * 60 | 0) % 100).toString().padStart(2, '0');
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addNewPads(); // some browsers add by polling, others by event
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Object.values(gamepadsByIndex).forEach(processController);
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requestAnimationFrame(process);
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}
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requestAnimationFrame(process);
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</script>
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