Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    var body: some View {
        WavingText()
            .foregroundStyle(.white)
            .frame(maxWidth: .infinity, maxHeight: .infinity)
            .background(Color(hue: 220/360, saturation: 0.3, brightness: 0.9))
    }
}

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    private var title: String {
        Item.sample.title
    }

    private var message: String {
        Item.sample.message
    }

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    @State var isExpanded = [true] + Array(repeating: false, count: PageItem.samples.count)

    var body: some View {
        ZStack {
            ForEach(1..<isExpanded.count, id: \.self) { offset in
                let item = PageItem.samples[(offset-1) % PageItem.samples.count]
                PageView(

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    @State var isExpanded = [true] + Array(repeating: false, count: 10)

    var body: some View {
        ZStack {
            ForEach(1..<isExpanded.count, id: \.self) { offset in
                CircleView(
                    color: .color(offset: offset),

Koshimizu-Takehito

import SwiftUI
import MapKit

struct ContentView: View {
    @State var position = MapCameraPosition.region(
        MKCoordinateRegion(
            center: CLLocationCoordinate2DMake(35.685175, 139.7528),
            span: MKCoordinateSpan(latitudeDelta: 0.03, longitudeDelta: 0.03)
        )
    )

Koshimizu-Takehito

import SwiftUI
import MapKit

struct MonotoneMap: View {
    @State var position = MapCameraPosition.region(
        MKCoordinateRegion(
            center: CLLocationCoordinate2DMake(35.685175, 139.7528),
            span: MKCoordinateSpan(latitudeDelta: 0.03, longitudeDelta: 0.03)
        )
    )

Koshimizu-Takehito

import SwiftUI

struct ShaderView: View {
    let name: String
    private let start = Date()

    var body: some View {
        let shader = ShaderFunction(library: .default, name: name)
        TimelineView(.animation) { context in
            let seconds = context.date.timeIntervalSince(start)

Koshimizu-Takehito

import SwiftUI

struct Item: Identifiable, Hashable {
    var id = UUID()
}

struct ContentView: View {
    @State var items = [Item()]

    var body: some View {

Koshimizu-Takehito

import SwiftUI

// MARK: - Model
@MainActor
@Observable
final class Model {
    var angles: [[Angle]]

    init(row: Int, column: Int) {
        angles = (0..<row).map { _ in

Koshimizu-Takehito

#include <metal_stdlib>
#include <SwiftUI/SwiftUI.h>
using namespace metal;

constant int MAX_RADIUS = 100;
constant int MAX_KERNEL_SIZE = 2 * MAX_RADIUS + 1;

float gaussian(float x, float sigma) {
    return exp(-0.5 * x * x / (sigma * sigma)) / (sigma * sqrt(2.0 * M_PI_F));
}