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annotate LazyBear/HapticsManager.swift @ 449:4255f94d0767

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Minor updates
author Dennis Concepción Martín <dennisconcepcionmartin@gmail.com>
date Wed, 23 Jun 2021 13:03:00 +0200
parents 62d278295bb7
children 37c13ebda381
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1 //
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2 // HapticsManager.swift
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3 // LazyBear
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4 //
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5 // Created by Dennis Concepción Martín on 27/3/21.
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6 //
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7
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8 import SwiftUI
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9 import CoreHaptics
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10
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11 class HapticsManager: ObservableObject {
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12 @Published var engine: CHHapticEngine?
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13
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14 func prepareHaptics() {
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15 guard CHHapticEngine.capabilitiesForHardware().supportsHaptics else { return }
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16
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17 do {
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18 self.engine = try CHHapticEngine()
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19 try engine?.start()
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20 } catch {
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21 print("There was an error creating the engine: \(error.localizedDescription)")
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22 }
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23 }
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24
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25 func simpleSuccess() {
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26 let generator = UINotificationFeedbackGenerator()
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27 generator.notificationOccurred(.success)
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28 }
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29
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30 func complexSuccess() {
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31 // make sure that the device supports haptics
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32 guard CHHapticEngine.capabilitiesForHardware().supportsHaptics else { return }
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33 var events = [CHHapticEvent]()
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34
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35 // create one intense, sharp tap
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36 let intensity = CHHapticEventParameter(parameterID: .hapticIntensity, value: 2)
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37 let sharpness = CHHapticEventParameter(parameterID: .hapticSharpness, value: 1)
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38 let event = CHHapticEvent(eventType: .hapticTransient, parameters: [intensity, sharpness], relativeTime: 0)
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39 events.append(event)
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40
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41 // convert those events into a pattern and play it immediately
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42 do {
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43 let pattern = try CHHapticPattern(events: events, parameters: [])
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44 let player = try engine?.makePlayer(with: pattern)
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45 try player?.start(atTime: 0)
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46 } catch {
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47 print("Failed to play pattern: \(error.localizedDescription).")
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48 }
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49 }
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50
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51 func simpleError() {
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52 let generator = UINotificationFeedbackGenerator()
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53 generator.notificationOccurred(.error)
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54 }
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55 }