钢琴键盘原型

Piano Keys | PROTOTYPE

tone.js, piano

《three.js如何实现贴图模糊效果 - 使用canvas》申请公开！

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常用链接

HTML
CSS
JavaScript
Result

编译

JavaScript

'use strict';

console.clear();
var synth = new Tone.PolySynth(6, Tone.MonoSynth).toMaster();

document.addEventListener('mouseup', function(e) {
    pointer.down = false;
});

Array.from(keys).forEach(function(item) {
    item.addEventListener('mousedown', function(e) {
        var note = item.getAttribute('data-note');
        synth.triggerAttack(note);
        pointer.down = true;
        item.classList.add('active');
    });
    item.addEventListener('mouseenter', function(e) {
        var note = item.getAttribute('data-note');
        if (pointer.down) {
            item.classList.add('active');
            synth.triggerAttack(note);
        }
    });
    item.addEventListener('mouseleave', function(e) {
        var note = item.getAttribute('data-note');
        if (pointer.down) {
            synth.triggerRelease(note);
            item.classList.remove('active');
        }
    });
    item.addEventListener('mouseup', function(e) {
        var note = item.getAttribute('data-note');
        synth.triggerRelease(note);
        item.classList.remove('active');
    });
});

编译

CSS

.keys {
    position: relative;
    display: -webkit-inline-box;
    display: -webkit-inline-flex;
    display: -ms-inline-flexbox;
    display: inline-flex;
    overflow: hidden;
    height: 332px;
    background: black;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
.keys:before,
.keys:after {
    content: '';
    pointer-events: none;
    position: absolute;
    left: 0;
    width: 100%;
    z-index: 2;
}
.keys:before {
    box-shadow: 0 4px 2px #d52, 0 4px 0 #a55;
    height: 4px;
    top: -4px;
}
.keys:after {
    top: 0;
    height: 100%;
    border-radius: 5px;
    box-shadow: 0 0 0 2px black inset, 0 0 0 4px black;
}
.keys .key {
    cursor: pointer;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
}
.keys .black {
    position: relative;
    z-index: 0;
    height: 160px;
    width: 22px;
    -webkit-box-flex: 0;
    -webkit-flex: 0 0 22px;
    -ms-flex: 0 0 22px;
    flex: 0 0 22px;
    background-color: #111;
    background-image: -webkit-linear-gradient(top, rgba(255, 255, 255, 0.1), rgba(0, 0, 0, 0.2)), -webkit-radial-gradient(center, ellipse, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.1)), -webkit-linear-gradient(bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1)), -webkit-linear-gradient(left, rgba(0, 0, 0, 0.3) 0px, rgba(255, 255, 255, 0.3) 1px, transparent 6px), -webkit-linear-gradient(right, rgba(0, 0, 0, 0.3) 0px, rgba(255, 255, 255, 0.3) 1px, transparent 6px);
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), rgba(0, 0, 0, 0.2)), radial-gradient(ellipse at center, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.1)), linear-gradient(to top, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1)), linear-gradient(to right, rgba(0, 0, 0, 0.3) 0px, rgba(255, 255, 255, 0.3) 1px, transparent 6px), linear-gradient(to left, rgba(0, 0, 0, 0.3) 0px, rgba(255, 255, 255, 0.3) 1px, transparent 6px);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1) inset, 1px 0 0 0 #333333 inset, 0 1px 2px rgba(178, 178, 154, 0.4), 0 0 0 2px #000, 0 40px 0 2px #333;
    margin: 0 -11px;
    -webkit-transform: translate3d(0, -30px, 0);
    transform: translate3d(0, -30px, 0);
}
.keys .black.active {
    -webkit-transform: translate3d(0, -22.5px, 0);
    transform: translate3d(0, -22.5px, 0);
}
.keys .black:before {
    content: '';
    position: absolute;
    top: 100%;
    right: 100%;
    border-radius: 3px;
    margin-right: -1px;
    border: 10px solid transparent;
    border-bottom-color: #000;
    border-right-color: #000;
    -webkit-transform-origin: 100% 0%;
    transform-origin: 100% 0%;
    -webkit-transform: rotate(15deg);
    transform: rotate(15deg);
}
.keys .black:after {
    content: '';
    position: absolute;
    top: 100%;
    left: 100%;
    border-radius: 3px;
    margin-left: -1px;
    border: 10px solid transparent;
    border-bottom-color: #000;
    border-left-color: #000;
    -webkit-transform-origin: 0% 0%;
    transform-origin: 0% 0%;
    -webkit-transform: rotate(-15deg);
    transform: rotate(-15deg);
}
.keys .white {
    position: relative;
    z-index: 1;
    height: 160px;
    width: 60px;
    -webkit-box-flex: 0;
    -webkit-flex: 0 0 60px;
    -ms-flex: 0 0 60px;
    flex: 0 0 60px;
    background-color: #EDED68;
    background-image: -webkit-linear-gradient(top, white, rgba(255, 255, 255, 0.8)), -webkit-radial-gradient(center, ellipse, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.1)), -webkit-linear-gradient(bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1)), -webkit-linear-gradient(left, rgba(0, 0, 0, 0.1), rgba(255, 255, 255, 0.2), rgba(0, 0, 0, 0.1));
    background-image: linear-gradient(to bottom, white, rgba(255, 255, 255, 0.8)), radial-gradient(ellipse at center, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.1)), linear-gradient(to top, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1)), linear-gradient(to right, rgba(0, 0, 0, 0.1), rgba(255, 255, 255, 0.2), rgba(0, 0, 0, 0.1));
    background-position: center center, 15px 50px, center center;
    background-size: 100% 100%, 300% 100%, 100% 100%;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1) inset, 1px 0 0 0 white inset, 0 0 0 1px #b2b29a, 0 20px 0 -1px #a9a999, 0 20px 0 0 #c1c1ae, 0 20px 0 1px #b2b29a;
    border-radius: 0 3px 3px 3px;
    margin: 150px 2px 22px;
}
.keys .white.active {
    height: 165px;
    -webkit-transform: translate3d(0, 5px, 0);
    transform: translate3d(0, 5px, 0);
    background-size: 100% 100%, 100% 100%, 100% 100%, 300% 100%, 100% 100%;
    background-position: center center, center center, center center, 15px 50px, center center;
    background-image: -webkit-linear-gradient(top, white, rgba(255, 255, 255, 0.7)), -webkit-linear-gradient(left, rgba(0, 0, 0, 0.5), transparent 8px), -webkit-linear-gradient(right, rgba(0, 0, 0, 0.5), transparent 6px), -webkit-radial-gradient(center, ellipse, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.1)), -webkit-linear-gradient(bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1)), -webkit-linear-gradient(left, rgba(0, 0, 0, 0.1), rgba(255, 255, 255, 0.2), rgba(0, 0, 0, 0.1));
    background-image: linear-gradient(to bottom, white, rgba(255, 255, 255, 0.7)), linear-gradient(to right, rgba(0, 0, 0, 0.5), transparent 8px), linear-gradient(to left, rgba(0, 0, 0, 0.5), transparent 6px), radial-gradient(ellipse at center, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.1)), linear-gradient(to top, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1)), linear-gradient(to right, rgba(0, 0, 0, 0.1), rgba(255, 255, 255, 0.2), rgba(0, 0, 0, 0.1));
}
.keys .white .top {
    height: 160px;
    position: absolute;
    bottom: 100%;
    background-color: white;
    box-shadow: 1px 0 0 0 rgba(0, 0, 0, 0.1) inset, 1px 0 0 0 white inset, 0 -1px 0 0 white, 0 -1px 0 1px #b2b29a;
    border-radius: 3px 3px 0 0;
    margin-bottom: -1px;
}
.keys .white .top:before,
.keys .white .top:after {
    position: absolute;
    bottom: 0;
    height: 6px;
    width: 6px;
    margin-bottom: 2px;
}
.keys .white .top:before {
    left: 100%;
    border-radius: 0 0 0 3px;
    margin-left: 1px;
    box-shadow: -1px 0 0 0 #b2b29a, 0 1px 0 0 #b2b29a, -3px 3px 0 #fff;
}
.keys .white .top:after {
    right: 100%;
    margin-right: 1px;
    border-radius: 0 0 3px 0;
    box-shadow: 1px 0 0 0 #b2b29a, 0 1px 0 0 #b2b29a, 3px 3px 0 #fff;
}
.keys .white.left .top {
    left: 0;
    width: 45px;
}
.keys .white.left .top:before {
    content: '';
}
.keys .white.right {
    border-radius: 3px 0 3px 3px;
}
.keys .white.right .top {
    right: 0;
    width: 45px;
}
.keys .white.right .top:after {
    content: '';
}
.keys .white.center {
    border-radius: 3px;
}
.keys .white.center .top {
    left: 15px;
    width: 20px;
    width: 30px;
}
.keys .white.center .top:before,
.keys .white.center .top:after {
    content: '';
}

HTML

Piano Keys | PROTOTYPE

tone.js, piano

编辑器支持Emmet

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Piano Keys | PROTOTYPE

tone.js, piano

可弹奏的悬空钢琴背景（带完整音频资源）

HTML5 奥运会火钢琴曲自动演奏

编辑器支持Emmet

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