玩转3D效果：HTML、CSS与JS的结合打造酷炫相册
最编程
2024-02-23 14:34:03
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// 全局参数定义
var radius = 240; // 相册的半径
var autoRotate = true; // 是否自动旋转
var rotateSpeed = -60; // 旋转速度
var imgWidth = 120; // 照片宽度 (unit: px)
var imgHeight = 170; // 照片高度 (unit: px)
//背景音乐地址
var bgMusicURL = '音乐地址 ';
var bgMusicControls = true; //是否显示背景音乐播放器
// ===================== start =======================
setTimeout(init, 1000);
var odrag = document.getElementById('drag-container');
var ospin = document.getElementById('spin-container');
var aImg = ospin.getElementsByTagName('img');
var aVid = ospin.getElementsByTagName('video');
var aEle = [...aImg, ...aVid];
// Size of images
ospin.style.width = imgWidth + "px";
ospin.style.height = imgHeight + "px";
var ground = document.getElementById('ground');
ground.style.width = radius * 3 + "px";
ground.style.height = radius * 3 + "px";
// 相册初始化时候的动画特效
function init(delayTime) {
for (var i = 0; i < aEle.length; i++) {
aEle[i].style.transform = "rotateY(" + (i * (360 / aEle.length)) + "deg) translateZ(" + radius + "px)";
aEle[i].style.transition = "transform 1s";
aEle[i].style.transitionDelay = delayTime || (aEle.length - i) / 4 + "s";
}
}
function applyTranform(obj) {
// Constrain the angle of camera (between 0 and 180)
if (tY > 180) tY = 180;
if (tY < 0) tY = 0;
// Apply the angle
obj.style.transform = "rotateX(" + (-tY) + "deg) rotateY(" + (tX) + "deg)";
}
function playSpin(yes) {
ospin.style.animationPlayState = (yes ? 'running' : 'paused');
}
var sX, sY, nX, nY, desX = 0,
desY = 0,
tX = 0,
tY = 10;
// auto spin
if (autoRotate) {
var animationName = (rotateSpeed > 0 ? 'spin' : 'spinRevert');
ospin.style.animation = `${animationName} ${Math.abs(rotateSpeed)}s infinite linear`;
}
// add background music
if (bgMusicURL) {
document.getElementById('music-container').innerHTML += `
<audio src="${bgMusicURL}" ${bgMusicControls? 'controls': ''} autoplay loop>
<p>If you are reading this, it is because your browser does not support the audio element.</p>
</audio>
`;
}
// setup events
document.onpointerdown = function(e) {
clearInterval(odrag.timer);
e = e || window.event;
var sX = e.clientX,
sY = e.clientY;
this.onpointermove = function(e) {
e = e || window.event;
var nX = e.clientX,
nY = e.clientY;
desX = nX - sX;
desY = nY - sY;
tX += desX * 0.1;
tY += desY * 0.1;
applyTranform(odrag);
sX = nX;
sY = nY;
};
this.onpointerup = function(e) {
odrag.timer = setInterval(function() {
desX *= 0.95;
desY *= 0.95;
tX += desX * 0.1;
tY += desY * 0.1;
applyTranform(odrag);
playSpin(false);
if (Math.abs(desX) < 0.5 && Math.abs(desY) < 0.5) {
clearInterval(odrag.timer);
playSpin(true);
}
}, 17);
this.onpointermove = this.onpointerup = null;
};
return false;
};
document.onmousewheel = function(e) {
e = e || window.event;
var d = e.wheelDelta / 20 || -e.detail;
radius += d;
init(1);
};