maksarsanjeev
66 lines
2.3 KiB
Swift
66 lines
2.3 KiB
Swift
import AVFoundation
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import AppKit
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/// Preloaded WAV players with near-zero latency.
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/// Volume default 0.12 (matches prototype: gain ×6 then vol=0.12).
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@MainActor
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final class SoundEngine {
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static let shared = SoundEngine()
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var enabled: Bool = true
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var volume: Float = 0.12 {
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didSet { players.values.forEach { $0.forEach { $0.volume = volume } } }
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}
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// Pool of 3 players per sound to allow overlapping playback
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private var players: [String: [AVAudioPlayer]] = [:]
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private init() {
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preload()
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}
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private func preload() {
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let names = ["peek","open","close","hover","blip","slap","annoyed","dizzy","greet",
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"work","finish","error","approval","question","approve","gulp","tick",
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"send","love","pop","proud","wink","yawn","attach","think","search",
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"rate","sleep","greeting"]
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for name in names {
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guard let url = Bundle.main.url(forResource: name, withExtension: "wav", subdirectory: "sounds") else { continue }
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var pool: [AVAudioPlayer] = []
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for _ in 0..<3 {
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if let p = try? AVAudioPlayer(contentsOf: url) {
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p.volume = volume
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p.prepareToPlay()
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pool.append(p)
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}
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}
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if !pool.isEmpty { players[name] = pool }
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}
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}
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/// Fade out all currently-playing instances of `name` over `duration` seconds,
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/// then stop and reset them so they can be reused.
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func fadeOut(_ name: String, duration: TimeInterval) {
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guard let pool = players[name] else { return }
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for player in pool where player.isPlaying {
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player.setVolume(0, fadeDuration: duration)
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DispatchQueue.main.asyncAfter(deadline: .now() + duration) { [weak player] in
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guard let p = player else { return }
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p.stop()
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p.currentTime = 0
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p.volume = self.volume
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}
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}
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}
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func play(_ name: String) {
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guard enabled && AppState.shared.soundEnabled else { return }
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guard let pool = players[name] else { return }
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// Find a player that is not currently playing
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let player = pool.first { !$0.isPlaying } ?? pool[0]
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player.currentTime = 0
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player.volume = volume
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player.play()
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}
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}
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