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// dictionary to keep track of frame count for each animation
let frameCounts = {};
function animate(id, delay) {
// get the container and frames for the amination
const container = document.getElementById(id);
const frames = container.children;
// set up the frame counter
frameCounts[id] = 0;
// hide all frames except for the first
frames[0].style.display = "flex";
for (let i = 1; i < frames.length; i++) {
frames[i].style.display = "none";
}
// start the animation
const interval = setInterval(updateAnimation, delay, id, frames, frames.length);
}
function updateAnimation(id, frames, totalFrames) {
// increment the frame counter for the given id
frameCounts[id] = (frameCounts[id] + 1) % totalFrames;
// show the next frame
frames[frameCounts[id]].style.display = "flex";
// hide the previous frame
if (frameCounts[id] == 0) {
frames[totalFrames - 1].style.display = "none";
} else {
frames[frameCounts[id] - 1].style.display = "none";
}
}
// If the user have a setting on their device to minimize the amount of non-essential motion
const preferReduceMotion = window.matchMedia("(prefers-reduced-motion)").matches;
animate("illustration-accueil", preferReduceMotion ? 1500 : 500); // Reduce framerate if use preference is to reduce motion
animate("rennes", preferReduceMotion ? 3000 : 1000); // Reduce framerate if use preference is to reduce motion
animate("orsay", preferReduceMotion ? 4000 : 2000); // Reduce framerate if use preference is to reduce motion
animate("parterre", 1500);
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