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怎样用CSS实现折叠纸飞机并飞出去的动画?

发布时间:2023-08-18 14:37:11 所属栏目:语言 来源:
导读:大家童年都有折过纸飞机的吧,今天我们就来看看如何用代码来实现。文中分享的示例用CSS+JS实现了折叠纸飞机并飞出去的动画效果,实现效果及代码如下,感兴趣的朋友接下来就跟随小编往下看吧。

灰色区域为可折
大家童年都有折过纸飞机的吧,今天我们就来看看如何用代码来实现。文中分享的示例用CSS+JS实现了折叠纸飞机并飞出去的动画效果,实现效果及代码如下,感兴趣的朋友接下来就跟随小编往下看吧。
 
    灰色区域为可折叠区域
 
    白色区域为机身
 
    三角形由border画出来的再经过各种平移翻转变成上图
 
    写之前再补充个知识点:
 
    我们颜色的设置不用rgba,
 
    用hsl() h: 色调 0- 360 0(或360)表示红色,120表示绿色,240表示蓝色
 
   s : 饱和度 0% -100%
 
   l : 亮度 0% - 100%
 
    先看效果才有动力:
 
 
 
    HTML:
 
<!--童年的纸飞机-->
 
<div class="airplane">
 
    <div class="front-end show-front">
 
        <!--宽高自适应的文本框-->
 
        <div class="text-input" contenteditable = true></div>
 
        <div class="fly">
 
            fly
 
        </div>
 
    </div>
 
    <div class="backup-end show-backup">
 
        <div class="left-plane">
 
            <!--左上角折叠区域-->
 
            <div class="left-top fold"></div>
 
            <!--左下角折叠区域-->
 
            <div class="left-bottom fold"></div>
 
            <!--机身-->
 
            <div class="wing wing1"></div>
 
            <div class="wing wing2"></div>
 
        </div>
 
        <div class="right-plane">
 
            <!--右上角折叠区域-->
 
            <div class="right-top fold"></div>
 
            <!--右下角折叠区域-->
 
            <div class="right-bottom fold"></div>
 
            <!--机身-->
 
            <div class="wing wing3"></div>
 
            <div class="wing wing4"></div>
 
        </div>
 
    </div>
 
</div>
 
    css:
 
body{
 
    width: 100%;
 
    height: 680px;
 
    background-color: #000;
 
    background-repeat: no-repeat;
 
    overflow: hidden;
 
    transition: all 2s linear;
 
}
 
/*景深加在父级上*/
 
.airplane{
 
    width: 100%;
 
    height: 100%;
 
    -webkit-perspective: 800px;
 
    -webkit-perspective-origin: 50% 50%;
 
}
 
/*纸飞机前面*/
 
/*一开始不旋转*/
 
.front-end.show-front{
 
    transform: rotateY(0deg);
 
}
 
/*点击后旋转*/
 
.front-end{
 
    background: rgba(255, 255, 255, 0.15);
 
    *background: hsl(0, 0%, 88%);
 
    /*绕Y轴旋转-180度*/
 
    transform: rotateY(-180deg);
 
    position: relative;
 
    box-sizing: border-box;
 
    padding: 20px;
 
    text-align: center;
 
    backface-visibility: hidden;
 
    width: 400px;
 
    height: 260px;
 
    top: 240px;
 
    transition: all 0.8s ease-in-out;
 
    margin: auto;
 
}
 
/*文本框*/
 
.text-input{
 
    width: 100%;
 
    max-width:360px;
 
    min-height:100px;
 
    padding: 10px;
 
    box-sizing: border-box;
 
    height: 140px;
 
    background-color: #ffffff;
 
    font-smoothing: subpixel-antialiased;
 
    font-size: 18px;
 
    text-align: left;
 
    font-family: "Microsoft YaHei",Helvetica, Arial, Verdana;
 
    line-height: 20px;
 
}
 
.fly{
 
    transition: all 0.3s ease-in-out;
 
    /*hsl是色调/饱和度/亮度/*/
 
    border: 2px solid hsl(194, 100%, 72%);
 
    margin: 15px 0;
 
    padding: 10px;
 
    outline: none;
 
    font-size: 18px;
 
    cursor: pointer;
 
    font-family: "Microsoft YaHei";
 
    background-color: hsl(0, 0%, 94%);
 
    border-radius:4px;
 
    user-select: none;
 
}
 
/*点击按钮时缩小动画*/
 
.fly:active{
 
    transform: scale(0.85);
 
    transition: all 10ms ease-in-out;
 
    background-color: hsl(0, 0%, 85%);
 
    border: 2px solid hsl(194, 30%, 55%);
 
}
 
.backup-end{
 
    perspective: 600px;
 
    perspective-origin: 200px 131px;
 
    transform-style: preserve-3d;
 
    transition: all 0.8s ease-in-out;
 
    backface-visibility: hidden;
 
    position: relative;
 
    width: 400px;
 
    height: 260px;
 
    margin: auto;
 
}
 
/*一开始不显示飞机*/
 
.backup-end.show-backup{
 
    transform: rotateY(180deg);
 
}
 
/*飞机的左右两边公共样式*/
 
.left-plane, .right-plane{
 
    transform-style: preserve-3d;
 
    width: 200px;
 
    height: 260px;
 
    display: block;
 
    position: absolute;
 
    top: 0px;
 
    transition: all 1s ease-in-out;
 
}
 
/*左边*/
 
.left-plane{
 
    transform: rotateZ(0deg);
 
    transform-origin: 100% 50% 0;
 
    left: 0;
 
}
 
/*右边*/
 
.right-plane{
 
    transform: rotateZ(0deg);
 
    transform-origin: 0% 50%;
 
    left: 199px;
 
}
 
/*左右机身的公共样式*/
 
.wing{
 
    position: absolute;
 
    transform-origin: 0 0 0;
 
    perspective: 1px;
 
    perspective-origin: 50% 50%;
 
    backface-visibility: hidden;
 
    transition: all 1.3s linear;
 
    box-sizing: border-box;
 
    margin: 0;
 
    padding: 0;
 
    background: none;
 
    border: none;
 
    border-top: 240px solid hsla(0, 0%, 0%, 0);
 
    border-bottom: 0px solid hsla(0, 0%, 0%, 0);
 
    border-right: 100px solid hsl(0, 0%, 88%);
 
    width: 0;
 
    height: 0;
 
    bottom: 0;
 
}
 
/*绘制  飞机2d 雏形*/
 
.wing1 {
 
    transform-origin: 100% 100%;
 
    transform: translateY(-38px) translateX(8px) rotateZ(22.62deg) skewY(-22.62deg);/*2D图像的偏移 旋转*/
 
}
 
.wing2 {
 
    transform: rotateZ(22.62deg);
 
    transform-origin: 100% 100%;
 
    border-left: 100px solid hsl(0, 0%, 88%);
 
    border-right: none;
 
    left: 100px;
 
}
 
.wing3 {
 
    transform: rotateZ(-22.62deg);
 
    transform-origin: 0% 100%;
 
    border-right: 100px solid hsl(0, 0%, 88%);
 
}
 
.wing4 {
 
    transform: translateY(-38px) translateX(-8px) rotateZ(-22.62deg) skewY(22.62deg);
 
    transform-origin: 0% 100%;
 
    border-right: none;
 
    border-left: 100px solid hsl(0, 0%, 88%);
 
    left: 100px;
 
}
 
/*绘制可折叠区域*/
 
.left-top.fold{
 
    position: absolute;
 
    transform-origin: 100px 112px;
 
    transition-delay: 1300ms;
 
    width: 0;
 
    height: 0;
 
    top: 0;
 
    border-right: 202px solid hsla(0, 0%, 0%, 0);
 
    border-bottom: 202px solid hsla(0, 0%, 0%, 0);
 
    border-top: 222px solid hsl(0, 0%, 88%);
 
}
 
.right-top.fold{
 
    position: absolute;
 
    right: 0;
 
    border-left: 202px solid hsla(0, 0%, 0%, 0);
 
    border-bottom: 202px solid hsla(0, 0%, 0%, 0);
 
    border-top: 222px solid hsl(0, 0%, 88%);
 
    transform-origin: 96px 112px;
 
    transition-delay: 1650ms;
 
}
 
.left-bottom.fold{
 
    position: absolute;
 
    transform-origin: 109px 0;
 
    transition-delay: 2100ms;
 
    width: 109px;
 
    height: 38px;
 
    background: hsl(0, 0%, 88%);
 
    bottom: 0;
 
    left: 0;
 
}
 
.right-bottom.fold{
 
    position: absolute;
 
    transform-origin: 0 0;
 
    transition-delay: 2450ms;
 
    width: 109px;
 
    height: 38px;
 
    background: hsl(0, 0%, 88%);
 
    bottom: 0;
 
    right: 0;
 
}
 
/*补全 折叠尾翼 剩余 三角区域*/
 
.left-bottom.fold:after {
 
    position: absolute;
 
    content: "";
 
    border-right: 92px solid hsla(0, 0%, 0%, 0);
 
    border-bottom: 39px solid hsl(0, 0%, 88%);
 
    border-top: 37px solid hsla(0, 0%, 0%, 0);
 
    left: 109px;
 
    bottom: 0;
 
}
 
.right-bottom.fold:after {
 
    position: absolute;
 
    content: "";
 
    border-left: 92px solid hsla(0, 0%, 0%, 0);
 
    border-bottom: 39px solid hsl(0, 0%, 88%);
 
    border-top: 37px solid hsla(0, 0%, 0%, 0);
 
    left: -92px;
 
    bottom: 0;
 
}
 
/****************************/
 
/****此处开始配合js*****/
 
/*折叠效果*/
 
.fold {
 
    transition: transform 800ms ease-out;
 
    backface-visibility: hidden;
 
    position: absolute;
 
    background-color: transparent;
 
    z-index: 0;
 
    width: 0;
 
}
 
/* 折叠效果(左机翼、左尾翼) */
 
.left-top.fold.curved {
 
    transform: rotate3d(1,-1.11,0,180deg);
 
}
 
.left-bottom.fold.curved {
 
    transform: rotate3d(2.4867,1,0,-180deg);
 
}
 
/* 折叠效果(右机翼、右尾翼)*/
 
.right-top.fold.curved {
 
    transform: rotate3d(1,1.11,0,180deg);
 
}
 
.right-bottom.fold.curved {
 
    transform: rotate3d(-2.4867,1,0,180deg);
 
}
 
/* 平放一整个飞机 */
 
.airplane.hover {
 
    transform: rotateX(54deg) rotateY(-10deg) rotateZ(25deg);
 
    transition-delay: 0.5s;
 
}
 
/*放平之后 左侧整体倾斜 (体现折叠效果)*/
 
.backup-end.hover .left-plane {
 
    transform: rotateY(60deg);
 
}
 
.backup-end.hover .right-plane {
 
    transform: rotateY(-60deg);
 
}
 
/* 3d视觉中放平 左侧机翼*/
 
.backup-end.hover .wing1 {
 
    transform: translateY(-38px) translateX(8px) rotateZ(22.62deg) rotateY(-60deg) skewY(-22.62deg);
 
    border-right: 100px solid hsl(0, 0%, 95%);
 
}
 
/*左侧 飞机手持部位透明度降低*/
 
.backup-end.hover .wing2 {
 
    border-left: 100px solid hsl(0, 0%, 85%);
 
}
 
/* 3d视觉中放平 右侧机翼*/
 
.backup-end.hover .wing4 {
 
    transform: translateY(-38px) translateX(-8px) rotateZ(-22.62deg) rotateY(60deg) skewY(20deg);
 
    border-left: 100px solid hsl(0, 0%, 95%);
 
}
 
/*右侧 飞机手持部位透明度降低*/
 
.backup-end.hover .wing3 {
 
    border-right: 100px solid hsl(0, 0%, 71%);
 
}
 
/*机翼 折叠效果(右机翼、右尾翼) 之后 多余部分隐藏掉*/
 
.backup-end.hover .curved {
 
    display: none;
 
}
 
/* #wind_container.hover .wing {
 
    backface-visibility: visible;
 
} */
 
 
/* 飞机后退助跑 */
 
.backup-end.hover.fly_away_first {
 
    transform: translateX(-100px) translateZ(300px) rotateX(42deg) rotateY(-11deg) rotateZ(27deg);
 
    transition-delay: 0ms;
 
    transition-duration: 0.4s;
 
    transition-timing-function: ease-out;
 
}
 
/* 飞机向前飞翔至消失 */
 
.backup-end.hover.fly_away_first.fly_away {
 
    transform: translateX(600px) translateY(-400px) translateZ(-5000px) rotateX(66deg) rotateY(-12deg) rotateZ(36deg);
 
    transition: transform 2s ease-out, opacity 1.5s 0.5s linear;
 
    opacity: 0;
 
}
 
    js:
 
// 童年的纸飞机
 
const fly = document.getElementsByClassName('fly')[0];
 
const front = document.getElementsByClassName('front-end')[0];
 
const backup = document.getElementsByClassName('backup-end')[0];
 
const fold = document.getElementsByClassName('fold');
 
fly.addEventListener('click', () => {
 
    first().then(second).then(third).then(fourth).then(fifth).catch((err)=> {
 
        console.log(err)
 
    });
 
}, false);
 
// 第一步
 
function first() {
 
    return new Promise((suc, err) => {
 
        setTimeout(() => {
 
            // 隐藏信息面板
 
            front.classList.remove('show-front');
 
            // 翻转至正面
 
            backup.classList.remove('show-backup');
 
            // 折叠效果(左翼、右翼)
 
            for (let i = 0; i < fold.length; i++) {
 
                fold[i].classList.add('curved')
 
            }
 
            // 颜色变换
 
            document.body.style.backgroundColor = "#54575A";
 
            suc(1)
 
        }, 200)
 
    })
 
}
 
function second() {
 
    return new Promise((suc, err) => {
 
        setTimeout(function () {
 
            backup.classList.add('hover');
 
            document.body.style.backgroundColor = "#AD8BD8";
 
            suc(2)
 
        }, 2800);
 
    })
 
}
 
//步骤三:飞机后退助跑
 
function third() {
 
    return new Promise((suc, err) => {
 
        setTimeout(function () {
 
            backup.classList.add('fly_away_first');
 
            document.body.style.backgroundColor = "#6E99C4";
 
            suc(3)
 
        }, 2000);
 
    })
 
}
 
// 步骤四:飞机向前飞翔至消失
 
function fourth() {
 
    return new Promise((suc, err) => {
 
        setTimeout(function () {
 
            backup.classList.add('fly_away');
 
            document.body.style.backgroundColor = "#3F9BFF";
 
            suc(4)
 
        }, 600);
 
    })
 
}
 
function fifth() {
 
    return new Promise((suc, err) => {
 
        setTimeout(function () {
 
            front.classList.add('show-front');
 
            backup.classList.remove('fly_away','fly_away_first','hover');
 
            backup.classList.add('show-backup');
 
            for (let i = 0; i < fold.length; i++) {
 
                fold[i].classList.remove('curved')
 
            }
 
            document.body.style.backgroundColor = "#000";
 
            suc(5)
 
        }, 3000);
 
    })
 
}
 
 

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