Commit `f9b8adc413`

f9b8adc4139441bbeeaed722fa5c34ee0a7ceb08

parent: 94470ad726

Verified · cmc

cmc <hello@cleberg.net> · 2026-10-17 23:29 UTC

Add iOS app shell with live sky

- App/project.yml (XcodeGen): sh.krz.moonrise, team ZCNAX3VL9D, iOS 26,
  push entitlement (development), location usage string. Generated
  project is not committed.
- SkyModel: location (falls back to Chicago), scene rebuilt off the main
  thread every 30 s.
- SkyScreen: drag to pan, pinch to zoom (30-140 degrees), draw-time
  readout for device measurement.
- AppDelegate: registers for remote notifications, logs the device token.
- SkyView: onDraw timing callback; all eight compass points.

Layout: unified · split

.gitignore +1

	@@ -5,3 +5,4 @@ node_modules/
5	.wrangler/	5	.wrangler/
6	.dev.vars	6	.dev.vars
7	*.p8	7	*.p8
		8	App/*.xcodeproj/

App/README.org added +13

@@ -0,0 +1,13 @@
	1	#+title: Moonrise app
	2
	3	The Xcode project is generated from =project.yml= and not committed.
	4
	5	#+begin_src sh
	6	brew install xcodegen
	7	cd App && xcodegen generate
	8	open Moonrise.xcodeproj
	9	#+end_src
	10
	11	Simulator: an iOS 26+ runtime is required. Push registration needs a
	12	signed build (team =ZCNAX3VL9D=); the APNs device token is logged under
	13	subsystem =sh.krz.moonrise=.

App/Sources/Moonrise.entitlements added +8

@@ -0,0 +1,8 @@
	1	<?xml version="1.0" encoding="UTF-8"?>
	2	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	3	<plist version="1.0">
	4	<dict>
	5	<key>aps-environment</key>
	6	<string>development</string>
	7	</dict>
	8	</plist>

App/Sources/MoonriseApp.swift added +33

@@ -0,0 +1,33 @@
	1	import SwiftUI
	2	import UIKit
	3	import os
	4
	5	let log = Logger(subsystem: "sh.krz.moonrise", category: "app")
	6
	7	@main
	8	struct MoonriseApp: App {
	9	@UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
	10
	11	var body: some Scene {
	12	WindowGroup {
	13	SkyScreen()
	14	.preferredColorScheme(.dark)
	15	}
	16	}
	17	}
	18
	19	final class AppDelegate: NSObject, UIApplicationDelegate {
	20	func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
	21	application.registerForRemoteNotifications()
	22	return true
	23	}
	24
	25	func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
	26	let token = deviceToken.map { String(format: "%02x", $0) }.joined()
	27	log.info("APNs device token: \(token, privacy: .public)")
	28	}
	29
	30	func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
	31	log.error("APNs registration failed: \(error.localizedDescription, privacy: .public)")
	32	}
	33	}

App/Sources/SkyModel.swift added +70

@@ -0,0 +1,70 @@
	1	import CoreLocation
	2	import Foundation
	3	import Observation
	4	import SkyEngine
	5	import SkyRenderer
	6
	7	/// Current place and the scene computed for it. Scenes are built off the main
	8	/// thread one at a time, since Astronomy Engine is not thread-safe.
	9	@MainActor
	10	@Observable
	11	final class SkyModel: NSObject, CLLocationManagerDelegate {
	12	/// Used until a location fix arrives or when location is denied.
	13	static let fallback = Observer(latitude: 41.8781, longitude: -87.6298)
	14
	15	private(set) var observer = SkyModel.fallback
	16	private(set) var hasLocation = false
	17	private(set) var scene: SkyScene?
	18	private(set) var lastBuild: Duration = .zero
	19
	20	private let manager = CLLocationManager()
	21	private var building = false
	22
	23	override init() {
	24	super.init()
	25	manager.delegate = self
	26	manager.desiredAccuracy = kCLLocationAccuracyKilometer
	27	}
	28
	29	func start() {
	30	manager.requestWhenInUseAuthorization()
	31	manager.requestLocation()
	32	refresh()
	33	}
	34
	35	func refresh(at date: Date = .now) {
	36	guard !building else { return }
	37	building = true
	38	let observer = observer
	39	Task.detached(priority: .userInitiated) {
	40	let clock = ContinuousClock()
	41	var scene: SkyScene?
	42	let elapsed = clock.measure { scene = try? SkyScene(date: date, observer: observer) }
	43	await MainActor.run {
	44	self.scene = scene
	45	self.lastBuild = elapsed
	46	self.building = false
	47	}
	48	}
	49	}
	50
	51	nonisolated func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
	52	guard let c = locations.last?.coordinate else { return }
	53	Task { @MainActor in
	54	self.observer = Observer(latitude: c.latitude, longitude: c.longitude)
	55	self.hasLocation = true
	56	self.refresh()
	57	}
	58	}
	59
	60	nonisolated func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
	61	Task { @MainActor in log.error("Location failed: \(error.localizedDescription, privacy: .public)") }
	62	}
	63
	64	nonisolated func locationManagerDidChangeAuthorization(_ manager: CLLocationManager) {
	65	let status = manager.authorizationStatus
	66	Task { @MainActor in
	67	if [.authorizedWhenInUse, .authorizedAlways].contains(status) { self.manager.requestLocation() }
	68	}
	69	}
	70	}

App/Sources/SkyScreen.swift added +97

@@ -0,0 +1,97 @@
	1	import SkyRenderer
	2	import SwiftUI
	3
	4	struct SkyScreen: View {
	5	@State private var model = SkyModel()
	6	@State private var azimuth = 180.0
	7	@State private var altitude = 45.0
	8	@State private var fieldOfView = 100.0
	9	@GestureState private var drag: CGSize = .zero
	10	@GestureState private var zoom: CGFloat = 1
	11	private let stats = DrawStats()
	12
	13	var body: some View {
	14	GeometryReader { geo in
	15	ZStack(alignment: .topLeading) {
	16	Color(red: 0.043, green: 0.078, blue: 0.141).ignoresSafeArea()
	17	if let scene = model.scene {
	18	let view = current(width: geo.size.width)
	19	SkyView(scene: scene, centerAzimuth: view.azimuth, centerAltitude: view.altitude, fieldOfView: view.fieldOfView) { [stats] d in
	20	stats.record(d)
	21	}
	22	.ignoresSafeArea()
	23	.gesture(panGesture(width: geo.size.width).simultaneously(with: zoomGesture))
	24	}
	25	header
	26	}
	27	}
	28	.task {
	29	model.start()
	30	while !Task.isCancelled {
	31	try? await Task.sleep(for: .seconds(30))
	32	model.refresh()
	33	}
	34	}
	35	}
	36
	37	/// The view direction with any in-progress gestures applied.
	38	private func current(width: CGFloat) -> (azimuth: Double, altitude: Double, fieldOfView: Double) {
	39	let fov = min(max(fieldOfView / Double(zoom), 30), 140)
	40	let degreesPerPoint = fov / Double(max(width, 1))
	41	let az = (azimuth - Double(drag.width) * degreesPerPoint).truncatingRemainder(dividingBy: 360)
	42	let alt = min(max(altitude + Double(drag.height) * degreesPerPoint, 0), 90)
	43	return ((az + 360).truncatingRemainder(dividingBy: 360), alt, fov)
	44	}
	45
	46	private func panGesture(width: CGFloat) -> some Gesture {
	47	DragGesture(minimumDistance: 0)
	48	.updating($drag) { value, state, _ in state = value.translation }
	49	.onEnded { value in
	50	let degreesPerPoint = fieldOfView / Double(max(width, 1))
	51	azimuth = ((azimuth - Double(value.translation.width) * degreesPerPoint).truncatingRemainder(dividingBy: 360) + 360).truncatingRemainder(dividingBy: 360)
	52	altitude = min(max(altitude + Double(value.translation.height) * degreesPerPoint, 0), 90)
	53	}
	54	}
	55
	56	private var zoomGesture: some Gesture {
	57	MagnifyGesture()
	58	.updating($zoom) { value, state, _ in state = value.magnification }
	59	.onEnded { value in fieldOfView = min(max(fieldOfView / Double(value.magnification), 30), 140) }
	60	}
	61
	62	private var header: some View {
	63	VStack(alignment: .leading, spacing: 4) {
	64	Text("Tonight").font(.system(size: 22, weight: .medium))
	65	Text(model.hasLocation ? "Your location" : "Chicago (location unavailable)")
	66	.font(.system(size: 11)).foregroundStyle(.secondary)
	67	TimelineView(.periodic(from: .now, by: 1)) { _ in
	68	Text(stats.summary(build: model.lastBuild))
	69	.font(.system(size: 10).monospacedDigit()).foregroundStyle(.secondary)
	70	}
	71	}
	72	.foregroundStyle(Color(red: 0.95, green: 0.95, blue: 0.93))
	73	.padding(.horizontal, 20)
	74	.padding(.top, 8)
	75	}
	76	}
	77
	78	/// Draw timings for the debug readout. Written from the Canvas closure, read once a second.
	79	final class DrawStats: @unchecked Sendable {
	80	private let lock = NSLock()
	81	private var samples: [Duration] = []
	82
	83	func record(_ d: Duration) {
	84	lock.withLock {
	85	samples.append(d)
	86	if samples.count > 120 { samples.removeFirst(samples.count - 120) }
	87	}
	88	}
	89
	90	func summary(build: Duration) -> String {
	91	let s = lock.withLock { samples }
	92	let ms = s.map { Double($0.components.attoseconds) / 1e15 + Double($0.components.seconds) * 1000 }.sorted()
	93	guard let median = ms.isEmpty ? nil : ms[ms.count / 2], let worst = ms.last else { return "draw –" }
	94	let b = Double(build.components.attoseconds) / 1e15 + Double(build.components.seconds) * 1000
	95	return String(format: "draw %.1f ms median, %.1f ms max · scene %.0f ms", median, worst, b)
	96	}
	97	}

App/project.yml added +37

@@ -0,0 +1,37 @@
	1	name: Moonrise
	2	options:
	3	bundleIdPrefix: sh.krz
	4	deploymentTarget:
	5	iOS: "26.0"
	6	packages:
	7	MoonriseKit:
	8	path: ../Packages/MoonriseKit
	9	targets:
	10	Moonrise:
	11	type: application
	12	platform: iOS
	13	sources: [Sources]
	14	dependencies:
	15	- package: MoonriseKit
	16	product: SkyEngine
	17	- package: MoonriseKit
	18	product: SkyRenderer
	19	entitlements:
	20	path: Sources/Moonrise.entitlements
	21	properties:
	22	aps-environment: development
	23	settings:
	24	base:
	25	PRODUCT_BUNDLE_IDENTIFIER: sh.krz.moonrise
	26	DEVELOPMENT_TEAM: ZCNAX3VL9D
	27	CODE_SIGN_STYLE: Automatic
	28	SWIFT_VERSION: "6.0"
	29	TARGETED_DEVICE_FAMILY: "1"
	30	MARKETING_VERSION: "0.1"
	31	CURRENT_PROJECT_VERSION: "1"
	32	GENERATE_INFOPLIST_FILE: YES
	33	INFOPLIST_KEY_CFBundleDisplayName: Moonrise
	34	INFOPLIST_KEY_UILaunchScreen_Generation: YES
	35	INFOPLIST_KEY_UIStatusBarStyle: UIStatusBarStyleLightContent
	36	INFOPLIST_KEY_UISupportedInterfaceOrientations: UIInterfaceOrientationPortrait
	37	INFOPLIST_KEY_NSLocationWhenInUseUsageDescription: Moonrise uses your location to draw the sky above you.

Packages/MoonriseKit/Sources/SkyRenderer/SkyView.swift +7 −2

     public var centerAltitude: Double
     public var fieldOfView: Double
     public var style = SkyStyle()
+    /// Called after each draw with the time the draw took.
+    public var onDraw: (@Sendable (Duration) -> Void)?
-    public init(scene: SkyScene, centerAzimuth: Double = 180, centerAltitude: Double = 55, fieldOfView: Double = 110) {
+    public init(scene: SkyScene, centerAzimuth: Double = 180, centerAltitude: Double = 55, fieldOfView: Double = 110, onDraw: (@Sendable (Duration) -> Void)? = nil) {
         self.scene = scene
         self.centerAzimuth = centerAzimuth
         self.centerAltitude = centerAltitude
         self.fieldOfView = fieldOfView
+        self.onDraw = onDraw
     }
     public var body: some View {
         Canvas { context, size in
+            let start = ContinuousClock.now
             let p = Projection(centerAzimuth: centerAzimuth, centerAltitude: centerAltitude, fieldOfView: fieldOfView, size: size)
             context.fill(Path(CGRect(origin: .zero, size: size)), with: .color(style.background))
             drawConstellations(&context, p)
             drawStars(&context, p)
             drawBodies(&context, p)
             drawHorizon(&context, p, size: size)
+            onDraw?(ContinuousClock.now - start)
         }
     }
         ground.addLine(to: CGPoint(x: first.x, y: size.height + 10))
         ground.closeSubpath()
         context.fill(ground, with: .color(style.ground))
-        for (name, az) in [("SE", 135.0), ("S", 180.0), ("SW", 225.0), ("E", 90.0), ("W", 270.0)] {
+        for (name, az) in [("N", 0.0), ("NE", 45.0), ("E", 90.0), ("SE", 135.0), ("S", 180.0), ("SW", 225.0), ("W", 270.0), ("NW", 315.0)] {
             guard let pt = p.point(Horizontal(altitude: 0, azimuth: az)), pt.x > 0, pt.x < size.width else { continue }
             label(&context, name, at: CGPoint(x: pt.x, y: pt.y + 18), anchor: .center, color: style.muted)
         }

Commit f9b8adc413

Commit `f9b8adc413`