Realisasikan kesan khas buku flip 3D berdasarkan kemahiran html5_javascript javascript

Ini ialah animasi mengubah halaman buku 3D HTML5 Kesannya agak mudah . Teks dan gambar dalam buku juga akan dipaparkan dalam 3D, yang sangat keren.

Demo dalam talian Muat turun kod sumber

Kod HTML

<div class="book p3d">
 <div class="back-cover p3d">
 <div class="page back flip"></div>
 <div class="page front p3d">
  <div class="shadow"></div>
  <div class="dino"></div>
 </div>
 </div>
 <div class="front-cover p3d">
 <div class="page front flip p3d">
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam fermentum nisl quis nulla eleifend dignissim. Curabitur varius lobortis tincidunt. Maecenas gravida, nulla quis luctus imperdiet, ipsum nibh consectetur ante, in sodales massa tortor eget neque. Donec porta ligula massa, id sagittis est. Ut nisl tellus, faucibus nec feugiat ut, laoreet iaculis felis. Suspendisse ultrices mauris vel tellus suscipit commodo. Integer vitae tortor erat. Pellentesque non tempor nisi.</p>
 </div>
 <div class="page back"></div>
 </div>
</div>

Kod CSS

.book {
 width: 300px;
 height: 300px;
 margin-top: -150px;
 position: absolute;
 left: 50%;
 top: 50%;
 -webkit-transform: rotateX(60deg);
 -moz-transform: rotateX(60deg);
 -ms-transform: rotateX(60deg);
 -o-transform: rotateX(60deg);
 transform: rotateX(60deg);
 -webkit-user-select: none;
 -moz-user-select: none;
 -ms-user-select: none;
 -o-user-select: none;
 user-select: none;
}
.page {
 width: 300px;
 height: 300px;
 padding: 1em;
 position: absolute;
 left: 0;
 top: 0;
 text-indent: 2em;
}
.front {
 background-color: #d93e2b;
}
.back {
 background-color: #fff;
}
.front-cover {
 cursor: move;
 -webkit-transform-origin: 0 50%;
 -moz-transform-origin: 0 50%;
 -ms-transform-origin: 0 50%;
 -o-transform-origin: 0 50%;
 transform-origin: 0 50%;
 -webkit-transform: rotateY(0deg);
 -moz-transform: rotateY(0deg);
 -ms-transform: rotateY(0deg);
 -o-transform: rotateY(0deg);
 transform: rotateY(0deg);
}
.front-cover .back {
 background-image: url(mdn.png);
 background-repeat: no-repeat;
 background-position: 50% 50%;
 -webkit-transform: translateZ(3px);
 -moz-transform: translateZ(3px);
 -ms-transform: translateZ(3px);
 -o-transform: translateZ(3px);
 transform: translateZ(3px);
}
.back-cover .back {
 -webkit-transform: translateZ(-3px);
 -moz-transform: translateZ(-3px);
 -ms-transform: translateZ(-3px);
 -o-transform: translateZ(-3px);
 transform: translateZ(-3px); 
}
.p3d {
 -webkit-transform-style: preserve-3d;
 -moz-transform-style: preserve-3d;
 -ms-transform-style: preserve-3d;
 -o-transform-style: preserve-3d;
 transform-style: preserve-3d;
}
.flip {
 -webkit-transform: rotateY(180deg);
 -moz-transform: rotateY(180deg);
 -ms-transform: rotateY(180deg);
 -o-transform: rotateY(180deg);
 transform: rotateY(180deg);
}
.dino,
.shadow {
 width: 196px;
 height: 132px;
 position: absolute;
 left: 60px;
 top: 60px;
 -webkit-transform-origin: 0 100%;
 -moz-transform-origin: 0 100%;
 -ms-transform-origin: 0 100%;
 -o-transform-origin: 0 100%;
 transform-origin: 0 100%;
}
.dino {
 background: url(dino.png) no-repeat;

}
.shadow {
 background: url(shadow.png) no-repeat;
}

Kod JavaScript

(function (window, document) {

 var prefixes = ['Webkit', 'Moz', 'ms', 'O', ''],
 book = document.querySelectorAll('.book')[0],
 page = document.querySelectorAll('.front-cover')[0],
 dino = document.querySelectorAll('.dino')[0],
 shadow = document.querySelectorAll('.shadow')[0],
 hold = false,
 centerPoint = window.innerWidth / 2,
 pageSize = 300,
 clamp = function (val, min, max) {
 return Math.max(min, Math.min(val, max));
 };

 page.onmousedown = function () {
 hold = true;
 };

 window.onmouseup = function () {
 if (hold) {
 hold = false;
 }
 };

 window.onresize = function () {
 centerPoint = window.innerWidth / 2;
 };

 window.onmousemove = function (evt) {
 if (!hold) {
 return;
 }

 var angle = clamp((centerPoint - evt.pageX + pageSize) / pageSize * -90, -180, 0),
 i, j;

 for (i = 0, j = prefixes.length; i < j; i++) {
 book.style[prefixes[i] + 'Transform'] = 'rotateX(' + (60 + angle / 8) + 'deg)';
 page.style[prefixes[i] + 'Transform'] = 'rotateY(' + angle + 'deg)';
 dino.style[prefixes[i] + 'Transform'] = 'rotateX(' + (angle / 2) + 'deg)';
 shadow.style[prefixes[i] + 'Transform'] = 'translateZ(1px) skewX(' + (angle / 8) + 'deg)';
 }
 };

})(window, document);

Di atas ialah contoh kod untuk animasi mengubah halaman buku 3D HTML5 saya harap ia akan membantu semua orang untuk mempelajari pengaturcaraan javascript.