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CoreMotionActivity.swift
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CoreMotionActivity.swift
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//
// CoreMotionActivity.swift
// C3PRO
//
// Created by Pascal Pfiffner on 25/05/16.
// Copyright © 2016 University Hospital Zurich. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
import CoreMotion
/**
Bitmask for core motion activity types, mapping directly to what's available in CMMotionActivity.
*/
public struct CoreMotionActivityType: OptionSet {
public let rawValue: Int
public init(rawValue: Int) {
self.rawValue = rawValue
}
/// None of the activity types or "unknown" was set to true.
static let Unknown = CoreMotionActivityType(rawValue: 1 << 0)
/// The activitiy's "stationary" flag was on.
static let Stationary = CoreMotionActivityType(rawValue: 1 << 1)
/// The activitiy's "automotive" flag was on.
static let Automotive = CoreMotionActivityType(rawValue: 1 << 2)
/// The activitiy's "walking" flag was on.
static let Walking = CoreMotionActivityType(rawValue: 1 << 3)
/// The activitiy's "running" flag was on.
static let Running = CoreMotionActivityType(rawValue: 1 << 4)
/// The activitiy's "cycling" flag was on. Remember WWDC14, this is likely only correct when phone is worn on the arm.
static let Cycling = CoreMotionActivityType(rawValue: 1 << 5)
}
/**
Class representing a CMMotionActivity.
*/
open class CoreMotionActivity {
/// The type(s) the activity represented.
open var type: CoreMotionActivityType
/// When the receiver started.
open var startDate: Date
/// The confidence in the activity determination.
open var confidence: CMMotionActivityConfidence
public init(start: Date, activity: CoreMotionActivityType, confidence inConfidence: CMMotionActivityConfidence) {
type = activity
startDate = start
confidence = inConfidence
}
public convenience init(activity: CMMotionActivity) {
var typ: CoreMotionActivityType = .Unknown
if activity.stationary {
typ.insert(.Stationary)
typ.remove(.Unknown)
}
if activity.automotive {
typ.insert(.Automotive)
typ.remove(.Unknown)
}
if activity.walking {
typ.insert(.Walking)
typ.remove(.Unknown)
}
if activity.running {
typ.insert(.Running)
typ.remove(.Unknown)
}
if activity.cycling {
typ.insert(.Cycling)
typ.remove(.Unknown)
}
self.init(start: activity.startDate, activity: typ, confidence: activity.confidence)
}
}
extension CMMotionActivityConfidence: Equatable {}
public func ==(lhs: CMMotionActivityConfidence, rhs: CMMotionActivityConfidence) -> Bool {
return lhs.rawValue == rhs.rawValue
}
extension CMMotionActivityConfidence: Comparable {}
public func <(lhs: CMMotionActivityConfidence, rhs: CMMotionActivityConfidence) -> Bool {
return lhs.rawValue < rhs.rawValue
}