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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Danmuku demo</title>
<style>
body {
margin: 0;
padding: 0;
background: rgba(0, 0, 0, 0.65);
}
#container {
width: 100vw;
height: 100vh;
overflow: hidden;
}
.barrage {
display: flex !important;
justify-content: center;
align-items: center;
height: 30px;
font-size: 18px;
border-radius: 28px;
color: #fff;
padding: 0 20px;
box-sizing: border-box;
cursor: pointer;
}
.active {
z-index: 1;
color: #3ab2e9;
background: rgba(0,0,0,0.4);
}
.top-tips {
top: 5px;
width: 800px;
height: 30px;
z-index: 999;
font-size: 11px;
padding: 0 10px;
position: fixed;
color: #d6fadd;
line-height: 30px;
border-radius: 5px;
text-align: center;
left: calc(50% - 400px);
background: rgba(0, 0, 0, 0.4);
}
.operation-panel {
position: fixed;
width: 280px;
top: 0;
bottom: 0;
left: 0;
overflow-x: hidden;
padding: 20px;
z-index: 999;
border-radius: 0 10px 10px 0;
box-sizing: border-box;
background: rgba(0,0,0,0.2);
}
.item {
width: 100%;
text-align: left;
color: #fff;
font-size: 16px;
display: flex;
justify-content: flex-end;
align-items: center;
margin-bottom: 18px;
}
.icon {
width: 30px;
height: 30px;
border-radius: 50%;
position: absolute;
top: 18px;
left: 20px;
display: block;
cursor: pointer;
background: url(./static/github.svg) no-repeat;
background-size: cover;
}
.btns {
display: flex;
justify-content: space-between;
align-items: center;
padding-left: 20px;
}
.button {
width: 50px;
height: 30px;
line-height: 30px;
text-align: center;
background: rgba(255, 255, 255, 0.3);
border-radius: 8px;
cursor: pointer;
}
.small-button {
width: 30px;
}
.button.select {
background: #5aa9a2;
}
.input {
width: 120px;
height: 30px;
background: rgba(255, 255, 255, 0.1);
border: none;
border-radius: 20px;
outline: none;
padding: 0 10px;
font-size: 16px;
color: #e14eba;
margin-left: 10px;
}
.small-input {
width: 40px;
height: 30px;
border: none;
border-radius: 20px;
padding: 0 10px;
outline: none;
font-size: 16px;
color: #e14eba;
background: rgba(255, 255, 255, 0.1);
}
.margin {
margin-left: 20px;
}
.input-range {
width: 120px;
margin-left: 20px;
outline: none;
}
.tips {
font-size: 14px;
color: #40f2b2;
}
.special-barrage {
font-size: 20px;
height: 30px;
line-height: 30px;
color: #fff;
cursor: pointer;
padding: 0 10px;
text-align: center;
border: 2px solid #fff;
background: rgba(124, 35, 191, 0.2);
}
input[type=range] {
-webkit-appearance: none;
background: #ed803c;
background-size: 75% 100%;
height: 3px;
}
input[type=range]::-webkit-slider-thumb {
-webkit-appearance: none;
height: 15px;
width: 15px;
background: #fff;
border-radius: 50%;
box-shadow: 0 0 6px 2px rgba(255, 255, 255, 0.5);
cursor: pointer;
}
</style>
</head>
<body>
<div class='top-tips'>
如果需要实时响应发送的弹幕，可以设置 limit 为 Infinity, rowGap 为 -1。但需要特别小心弹幕的存储容量和渲染数量过多，导致的内存飙升
</div>
<div class='operation-panel'>
<a class='icon' alt='github' href='https://github.com/imtaotao/danmuku'></a>
<div class='item tips'>
点击弹幕会消失
</div>
<div class='item'>
<span>透明度: </span>
<input type='range' class='input-range' min='0' max='100' value='100' id='opacity'>
</div>
<div class='item'>
<span>limit: </span>
<input type='text' class='input' placeholder='最大渲染弹幕数' id='limit'>
</div>
<div class='item'>
<span>rowGap: </span>
<input type='text' class='input' placeholder='同轨道弹幕间距' id='rowGap'>
</div>
<div class='item'>
<span>弹道高度: </span>
<input type='text' class='input' placeholder='轨道的高度' id='height'>
</div>
<div class='item'>
<span>渲染频率(s): </span>
<input type='text' class='input' placeholder='渲染间隔时间' id='renderTime'>
</div>
<div class='item'>
<span>显示区域: </span>
<div class='btns'>
<div class='button small-button select' id='allArea'>全</div>
<div class='button small-button margin' id='topArea'>上</div>
<div class='button small-button margin' id='bottomArea'>下</div>
</div>
</div>
<div class='item'>
<span>显示/隐藏: </span>
<div class='btns'>
<div class='button select' id='show'>显示</div>
<div class='button margin' id='hidden'>隐藏</div>
</div>
</div>
<div class='item'>
<span>方向: </span>
<div class='btns'>
<div class='button select' id='left'>left</div>
<div class='button margin' id='right'>right</div>
</div>
</div>
<div class='item'>
<span>启动: </span>
<div class='btns'>
<div class='button' id='start'>start</div>
<div class='button margin' id='stopBtn'>stop</div>
</div>
</div>
<div class='item'>
<span>时间范围: </span>
<div class='btns'>
<input class='small-input' placeholder='min' id='minTime'>
<input class='small-input margin' placeholder='max' id='maxTime'>
</div>
</div>
<div class='item'>
<div class='button' id='send'>发送</div>
<input class='input' type='text' placeholder='发送弹幕' id='barrageText'>
</div>
<div class='item'>
<div class='button' id='sendSpecial'>发送</div>
<input class='input' type='text' placeholder='发送高级弹幕' id='specialBarrage'>
</div>
<div class='item'>
<div class='button' style='width: 80px;' id='responsive'>实时响应</div>
<div class='button margin' id='clear'>清空</div>
</div>
<div class='item'>
<span>视图渲染弹幕数量: </span>
<div class='button margin' id='showNumber'>0</div>
</div>
<div class='item'>
<span>现有总弹幕数量: </span>
<div class='button margin' id='allNumber'>0</div>
</div>
</div>
<div id='container'></div>
<script src='./dist/danmuku.min.js'></script>
<script>
const random = (min, max) => +(Math.random() * (max - min) + min).toFixed(0)
const testData = [
'陈涛',
'Imtaotao',
'Supertaotao',
'I can see it',
'Do you feel alright?',
'Yes, I feel wonderfull tonight',
'Tell me someday we\'ll get together'
]
// 测试代码
const m = Danmuku.create({
container: document.getElementById('container'),
height: 35, // 轨道高度
rowGap: 10, // 两个弹幕的横向间隔（速度不一样，后面的可能会追上）
direction: 'right', // 弹幕的方向 left or right
times: [4, 8], // 弹幕动画的时间取值范围
limit: 150, // 能够渲染的最大数量
interval: 1,
hooks: { // 这里的生命周期，特殊弹幕和普通弹幕都会调用
// 弹幕创建时
barrageCreate (barrage, node) {
if (barrage.isSpecial) return
if (typeof barrage.data !== 'string') {
node.style.border = '3px solid #fff'
node.textContent = barrage.data.content
} else {
node.textContent = barrage.data
}
node.classList.add('barrage')
node.style.color = `rgba(${random(0, 255)}, ${random(0, 255)}, ${random(0, 255)})`
},
// 弹幕开始移动时
barrageMove (barrage, node) {
// 查看当前这个弹幕是否被修正过停留在视图的时长
// console.log(barrage.isChangeDuration)
node.style.opacity = opacity.value / 100
},
// 弹幕节点移除视图时
barrageRemove (barrage, node) {
},
barrageDestroy (barrage, node) {
allNumber.textContent = m.length
showNumber.textContent = m.showLength
},
send () {
allNumber.textContent = m.length
},
ended () {
console.log('end')
},
render () {
allNumber.textContent = m.length
showNumber.textContent = m.showLength
},
start () {
start.classList.add('select')
stopBtn.classList.remove('select')
},
stop () {
start.classList.remove('select')
stopBtn.classList.add('select')
},
clear () {
allNumber.textContent = m.length
showNumber.textContent = m.showLength
},
setOptions () {
console.log('setOptions')
},
show () {
show.classList.add('select')
hidden.classList.remove('select')
},
hidden () {
show.classList.remove('select')
hidden.classList.add('select')
},
}
})
m.start()
// 模拟从服务器得到的数据，不停的发送
setInterval(() => m.send(testData, {
// 弹幕渲染到页面上时
append (barrage, node) {
node.onmouseenter = e => {
barrage.pause()
node.classList.add('active')
}
node.onmouseleave = e => {
barrage.resume()
node.classList.remove('active')
}
node.onclick = e => {
barrage.destroy()
}
},
show () {
console.log('show')
},
}), 350)
</script>
<script>
// 定义初始值
height.value = m.opts.height
limit.value = m.opts.limit
rowGap.value = m.opts.rowGap
renderTime.value = m.opts.interval
minTime.value = m.opts.times[0]
maxTime.value = m.opts.times[1]
const setDirection = direction => {
if (direction === 'left') {
left.classList.add('select')
right.classList.remove('select')
} else {
left.classList.remove('select')
right.classList.add('select')
}
}
setDirection(m.opts.direction)
const input = (node, cb) => {
node.oninput = e => {
const val = Number(e.currentTarget.value)
if (typeof val === 'number' && !isNaN(val)) {
cb(val)
}
}
}
// 轨道高度
input(height, val => {
m.setOptions({ height: val })
})
// limit
input(limit, val => {
m.setOptions({ limit: val })
})
// rowgap
input(rowGap, val => {
m.setOptions({ rowGap: val })
})
// render time
input(renderTime, val => {
m.setOptions({ interval: val })
})
// 隐藏显示
show.onclick = e => {
m.show()
}
hidden.onclick = e => {
m.hidden()
}
// direction
left.onclick = e => {
setDirection('left')
m.setOptions({ direction: 'left' })
}
right.onclick = e => {
setDirection('right')
m.setOptions({ direction: 'right' })
}
// 启动
start.onclick = e => {
m.start()
}
stopBtn.onclick = e => {
m.stop()
}
// times
input(minTime, min => {
const max = m.opts.times[1]
m.setOptions({ times: [min, max]})
})
input(maxTime, max => {
const min = m.opts.times[0]
m.setOptions({ times: [min, max]})
})
// 发送弹幕
send.onclick = e => {
m.send({ content: barrageText.value }, {}, true)
barrageText.value = ''
}
// 发送高级弹幕
sendSpecial.onclick = e => {
const text = specialBarrage.value
const directions = ['right', 'left', 'none']
specialBarrage.value = ''
m.sendSpecial({
duration: random(3, 5),
direction: directions[random(0, 2)],
position (barrage) {
return {
x: m.containerWidth / 2 ,
y: 100,
}
},
hooks: {
create (barrage, node) {
node.textContent = `高级弹幕--${text}`
node.classList.add('special-barrage')
},
destroy () {
console.log('高级弹幕销毁')
}
}
})
}
// 清空弹幕
clear.onclick = e => {
m.clear()
}
// 透明度
input(opacity, val => {
val /= 100
m.each(barrage => {
barrage.node.style.opacity = val
})
})
// 显示区域
const toggle = node => {
[allArea, topArea, bottomArea].forEach(v => {
if (v === node) {
v.classList.add('select')
} else {
v.classList.remove('select')
}
})
}
// 全部半部分区域
allArea.onclick = e => {
m.container.style.height = '100vh'
m.container.style.transform = 'translateY(0)'
m.resize()
toggle(allArea)
}
// 上半部分区域
topArea.onclick = e => {
m.container.style.height = '50vh'
m.container.style.transform = 'translateY(0)'
m.resize()
toggle(topArea)
}
// 下半部分区域
bottomArea.onclick = e => {
m.container.style.height = '50vh'
m.container.style.transform = 'translateY(100%)'
m.resize()
toggle(bottomArea)
}
// 实时响应
responsive.onclick = e => {
m.setOptions({
rowGap: -1,
limit: Infinity,
})
rowGap.value = -1
limit.value = Infinity
}
</script>
</body>
</html>