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pc-pcm-wave

v1.0.0

Published

preact pcm wave player

Downloads

1

Readme

pc-pcm-wave

https://travis-ci.com/deepkolos/pc-pcm-wave

一个简单的pcm波纹效果, 适用于preact项目, hooks编写, 有如下特性

  1. 可自定义状态数量
  2. 可自定义线的数量、粗细、颜色、波速、振幅、延迟等参数

Live Demo

Link

demo

Props

| 参数 | 类型 | 默认值 | 描述 | | ------------------ | -------- | ------ | --------------- | | stateMap | StateMap | | 默认参数 | | className | string | | 根元素className | | transitionDuration | number | 500 | 状态变换时长 |

Props Type: StateMap

| 键名 | 键值 | 描述 | | -------- | ----- | -------- | | [string] | State | 状态配置 |

Props Type: State

| 键名 | 键值 | 描述 | | ----- | ------ | ---------- | | a | number | 振幅 | | ws | number | 波速 | | p | number | 频率 | | width | number | 线宽度 | | color | string | 线颜色 | | delay | number | 延迟单位秒 |

VM Public Methods

| 方法 | 参数 | 描述 | | -------- | ----------------- | -------------------------------- | | setState | stateName(string) | 切换到stateMap的键值所对应的配置 |

Demo Code

const line1Def = {
  p: 0.7,
  width: 1.3,
  color: 'rgba(255,255,255,1)',
  delay: 0,
}

const line2Def = {
  p: 0.7,
  width: 1,
  color: 'rgba(255,255,255,0.5)',
  delay: 0.45,
}

const stateMap = {
  idle: [
    { a: 0, ws: 0, ...line1Def },
    { a: 0, ws: 0, ...line2Def },
  ],
  noise: [
    { a: 4, ws: 9, ...line1Def },
    { a: 3, ws: 9, ...line2Def },
  ],
  voice: [
    { a: 9, ws: 11, ...line1Def },
    { a: 7, ws: 11, ...line2Def },
  ],
}

function Page() {
  const waveRef = useRef()

  const onClick = () => {
    // 建议参考Demo的代码
    waveRef.current && waveRef.current.setState(Math.random() > 0.5 ? 'noise' : 'voice')
  }

  return <div onClick={onClick}>
    <PCMWave ref={waveRef} stateMap={stateMap} />
  </div>
}

TODO

  1. 增加更多效果

License

MIT 造轮子锻炼抽象能力