banjun

import Foundation

extension Timer {
    @MainActor @discardableResult static func scheduledTimerOnMainRunLoop(withTimeInterval: TimeInterval, repeats: Bool, block: @escaping @MainActor (Timer) -> Void) -> Timer {
        // The doc says: Creates and returns a new NSTimer object initialized with the specified block object and schedules it on the current run loop
        // But the block is not annotated with @MainActor and we need MainActor.assumeIsolated
        // Since Timer is non-Sendable, capture by nonisolated(unsafe) to pass from nonisolated context to MainActor.
        Timer.scheduledTimer(withTimeInterval: withTimeInterval, repeats: repeats) { timer in
            nonisolated(unsafe) let timer: Timer = timer
            MainActor.assumeIsolated {

banjun

import simd

func generatePlaneMesh(lengthInMeter: Float = 1, divisions: Int = 100, name: String = "GeneratedPlane") {
    let n = divisions
    let xys: [(Int, Int)] = (0..<n).flatMap { y in (0..<n).map { x in (x, y) }}
    let points: [SIMD3<Float>] = xys.map { x, y in
        SIMD3(Float(x) / Float(n - 1) - 0.5, Float(y) / Float(n - 1) - 0.5, 0) * lengthInMeter
    }
    let faceVertexIndices: [Int] = xys.flatMap { x, y in
        guard x < n - 1, y < n - 1 else { return [Int]() }

banjun

struct MultiColumnText: View {
    private let storage: NSTextStorage
    private let layoutManager: NSLayoutManager = .init()
    private let containers: [NSTextContainer]

    init(text: NSAttributedString, columns: Int) {
        storage = .init(attributedString: text)
        storage.addLayoutManager(layoutManager)
        containers = (0..<columns).map {_ in .init()}
        containers.forEach {

banjun

import RealityKit

extension ShapeResource {
    /// generate a box with its surfaces facing inward.
    /// NOTE: size 30 works with interactions, 50 does not work with interactions
    static func generateInwardBox(size: Float) async throws -> ShapeResource {
        // An array of vertex positions containing discrete points on the mesh.
        let meshPositions: [SIMD3<Float>] = [
            .init(-1, -1, -1), // 0 LBF
            .init(+1, -1, -1), // 1 RBF

banjun

import SwiftUI

// prerequisites in Info.plist: NSUserActivityTypes contains type, UIApplicationSceneManifest/UIApplicationSupportsMultipleScenes = YES
// accepts NSUserActivity.targetContentIdentifier = type
// see also: https://developer.apple.com/documentation/swiftui/scene/handlesexternalevents(matching:)
struct UserActivityWindowGroup<Content: View, Payload: Codable>: Scene {
    var type: String
    @ViewBuilder var content: (Payload) -> Content

    init(type: String, payloadType: Payload.Type, @ViewBuilder content: @escaping (Payload) -> Content) {

banjun

#!/bin/zsh

if [[ -z $BOGO_ARM64_TO_SIM ]]; then
    echo "❌ requires BOGO_ARM64_TO_SIM: set an executable binary path built from https://github.com/bogo/arm64-to-sim"
    exit 1;
fi

set -eu
# set -x # debug log

banjun

@@ -41,18 +41,18 @@
   depends_on "gnutls"
   depends_on "lame"
   depends_on "libass"
-  depends_on "libbluray"
-  depends_on "libsoxr"
+  #depends_on "libbluray"
+  #depends_on "libsoxr"
   depends_on "libvidstab"
   depends_on "libvorbis"

banjun

    private let audioOutput: AVCaptureAudioPreviewOutput = {
        let audioOutput = AVCaptureAudioPreviewOutput()
        audioOutput.volume = UserDefaults.standard.volume

        struct Device {
            var name: String?
            var uid: String?
        }
        var devicesProperty = AudioObjectPropertyAddress(mSelector: kAudioHardwarePropertyDevices, mScope: kAudioDevicePropertyScopeOutput, mElement: kAudioObjectPropertyElementWildcard)
        var devicesSize: UInt32 = 0

banjun

PREFIX prism: <https://prismdb.takanakahiko.me/prism-schema.ttl#>

SELECT ?n ?st ?title
WHERE {
    ?live a prism:Live;
        prism:performer/prism:name_kana "そらみすまいる";
        prism:songPerformed/prism:name ?title;
        prism:liveOfEpisode ?ep.
    ?ep a prism:Episode;
        prism:話数 ?n;

banjun

oneliner

curl 'https://prismdb.takanakahiko.me/sparql?default-graph-uri=&query=PREFIX+prism%3A+%3Chttps%3A%2F%2Fprismdb.takanakahiko.me%2Fprism-schema.ttl%23%3E%0D%0A%0D%0ASELECT+concat%28%22%5Cn%3B%3B+okuri-ari+entries.%5Cn%3B%3B+okuri-nasi+entries.%5Cn%5Cn%22%2C%0D%0Agroup_concat%28concat%28replace%28%3Fckana%2C+%22+%22%2C+%22%22%29%2C+%22+%2F%22%2C+replace%28%3Fcname%2C+%22+%22%2C+%22%22%29%2C+%22%3B%22%2C+%3Fcclass%2C+if%28bound%28%3Fccv%29%2C+concat%28%22+CV%3A%22%2C+%3Fccv%29%2C+%22%22%29%2C+%22%2F%22%29%3B+separator%3D%22%5Cn%22%29%29%0D%0AWHERE+%7B%0D%0A++++%3Fc+a+prism%3ACharacter%3B%0D%0A++++++++prism%3Aname+%3Fcname%3B%0D%0A++++++++prism%3Aname_kana+%3Fckana%3B%0D%0A++++++++a%2Frdfs%3Alabel+%3Fcclass.%0D%0A++++optional+%7B%3Fc+prism%3Acv+%3Fccv.%7D%0D%0A++++bind%28%22%22+as+%3Fg%29%0D%0A%7D%0D%0Agroup+by+%3Fg&format=text%2Fcsv' | tail +3 | LC_ALL=C sort > prismdb-characters.jisyo

SPARQL