"use strict"; // We will see if the visualizers core and event systems are working correctly. let startBtn = document.getElementById("startbtn"); startBtn.addEventListener("click", async (ev) => { let mediaStream = new Audio("Elektronomia - Collide.mp3"); mediaStream.addEventListener("canplaythrough", (ev) => { let visCore = new VisualizerCore(mediaStream, 128); let coreAndEventCanvas = document.getElementById("horizontal"); coreAndEventCanvas.width = 640; coreAndEventCanvas.height = 200; mediaStream.play(); visCore.analyze(); bindHorizontalBar(coreAndEventCanvas, visCore); // Pre-made simple horizontal bar visualizer. let widthDiv = document.getElementById("widthDiv"); widthDiv.style.height = "20px"; widthDiv.style.backgroundColor = "orange"; visCore.addUpdateListener((delta, bins) => { widthDiv.style.width = bins[3] + "px"; }) let colourDiv = document.getElementById("colourDiv"); colourDiv.style.height = "20px"; visCore.addUpdateListener((delta, bins) => { colourDiv.style.backgroundColor = "rgb(" + bins[0] + "," + bins[1] + ", " + bins[4] + ")"; }) }); });