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151 lines
2.3 KiB
Markdown
151 lines
2.3 KiB
Markdown
# 类 SoundEffect
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渲染进程类,游戏进程不能直接使用,继承自 [`AudioPlayer`](./audio-player.md)
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- 实例成员
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- [`gain`](#gain)
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- [`panner`](#panner)
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- [`volume`](#volume)
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- [`stereo`](#stereo)
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- 实例方法
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- 构造器[`constructor`](#constructor)
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- [`protected initAudio`](#protected-initaudio)
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- [`playSE`](#playse)
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- [`stopAll`](#stopall)
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- [`stopByIndex`](#stopbyindex)
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- [`setPanner`](#setpanner)
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- 静态成员
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- [`playIndex`](#playindex)
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- [`volume`](#static-volume)
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- [`disable`](#disable)
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## gain
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```ts
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declare var gain: GainNode
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```
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## panner
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```ts
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declare var panner: PannerNode
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```
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## volume
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```ts
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declare var volume: number
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```
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- 成员说明
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当前音效的音量
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## stereo
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```ts
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declare var stereo: boolean
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```
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- 成员说明
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是否启用立体声
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## constructor()
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```ts
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interface SoundEffect {
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new(data: ArrayBuffer, stereo: boolean = true): SoundEffect
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}
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```
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- 参数说明
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- `data`: 音频的 `ArrayBuffer` 数据
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- `stereo`: 是否启用立体声,默认启用
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## protected initAudio()
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```ts
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declare function initAudio(stereo: boolean = true): void
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```
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- 方法说明
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初始化音频,设置音频路由线路
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- 不启用立体声:source -> gain -> destination
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- 启用立体声:source -> panner -> gain -> destination
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## playSE()
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```ts
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declare function playSE(): number
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```
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- 方法说明
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播放这个音效
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- 返回值
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本次播放的唯一标识符
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## stopAll()
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```ts
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declare function stopAll(): void
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```
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- 方法说明
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停止这个音效的所有播放
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## stopByIndex()
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```ts
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declare function stopByIndex(index: number): void
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```
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- 方法说明
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根据播放的唯一标识符停止音效播放
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## setPanner()
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```ts
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declare function setPanner(source?: Partial<Panner>, listener?: Partial<Listener>): void
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```
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- 方法说明
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设置立体声信息,参考[立体声](../../guide/audio.md#播放立体声)
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## playIndex
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```ts
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declare var playIndex: number
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```
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- 静态成员
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## static volume
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```ts
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declare var volume: number
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```
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- 静态成员说明
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控制所有音效的音量
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## disable
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```ts
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declare var disable: boolean
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```
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- 静态成员说明
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音效是否被关闭
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