seed-engine

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A Lightweight 2D game engine using WebGL2. The engine is designed on the focus of creating a bridge between creating and publishing games to the Seed Network as modules.

github.com/JaegarSarauer/SeedGameEngine

JaegarSarauer/SeedGameEngine

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href="function/index.html#static-function-degToRad">degToRad</a></li> <li data-ice="doc">F<a href="function/index.html#static-function-radToDeg">radToDeg</a></li> </ul> </div> </nav> <div class="content" data-ice="content"><h1 data-ice="title">src/manager/AudioManager.js</h1> <pre class="source-code line-number raw-source-code"><code class="prettyprint linenums" data-ice="content">import Manager from './Manager'; export class _AudioManager extends Manager { constructor() { super(); this.masterVolume = 1; this.audioCtx = null; this.sounds = {}; } setMasterVolume(volume) { this.masterVolume = Math.max(0, Math.min(1, volume)); } addSound(soundName, soundAssetPath) { return this._createSoundBufferFromAsset(soundAssetPath).then((soundInfo) => { this.sounds[soundName] = soundInfo; return this.sounds[soundName]; }); } _createSoundBufferFromAsset(assetPath) { let soundInfo = { buffer: null, }; return new Promise((res, rej) => { let request = new XMLHttpRequest(); request.open('GET', assetPath, true); request.responseType = 'arraybuffer'; request.addEventListener('load', () => { this.audioCtx.decodeAudioData(request.response, (buffer) => { soundInfo.buffer = buffer; return res(soundInfo); }, (err) => { console.error(err); }); }); request.send(); }); } playSound(soundName, volume = 1) { // Find the sound to play. let sound = this.sounds[soundName]; if (sound == null) return false; if (!this.audioCtx.createGain) // For older browser support this.audioCtx.createGain = this.audioCtx.createGainNode; // Create the gain preference and set the volume let gainNode = this.audioCtx.createGain(); gainNode.gain.value = volume * this.masterVolume; // Set the audio buffer source. let source = this.audioCtx.createBufferSource(); source.buffer = sound.buffer; // Connect gain node to buffer. source.connect(gainNode); // Set default audio output. gainNode.connect(this.audioCtx.destination); if (!source.start) // For older browser support source.start = source.noteOn; // Start the buffer playback. source.start(0); } start() { try { // Fix up for prefixing window.AudioContext = window.AudioContext||window.webkitAudioContext; this.audioCtx = new AudioContext(); } catch(e) { console.info('Web Audio API is not supported in this browser'); } } removeSound(soundName) { delete this.sounds[soundName]; } end() { let soundNames = {}; //remove all loaded sounds } } /** * Singleton reference to the Audio Manager. */ const AudioManager = new _AudioManager(); export default AudioManager;</code></pre> </div> <footer class="footer"> Generated by <a href="https://esdoc.org">ESDoc(1.1.0)<img src="./image/esdoc-logo-mini-black.png"></a> </footer> <script src="script/search_index.js"></script> <script src="script/search.js"></script> <script src="script/pretty-print.js"></script> <script src="script/inherited-summary.js"></script> <script src="script/test-summary.js"></script> <script src="script/inner-link.js"></script> <script src="script/patch-for-local.js"></script> </body> </html>