uvolchyk

"""
MIT License

Copyright (c) 2017 Cyrille Rossant

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is

uvolchyk

import UIKit

let kPadding: CGFloat = 20
let kAnimationDuration: TimeInterval = 0.3
let kAnimationDelay: TimeInterval = 0

let kTextSpacing: CGFloat = 10
let kFondSize: CGFloat = 20

class MagicCell: UITableViewCell {

uvolchyk

struct News {
    let title: String
    let summary: String
    let date: String
}

class ViewData {
    private let raw: News
    var expanded: Bool
    var title: String { raw.title }

uvolchyk

import UIKit

let reuseIdentifier = "cellIdentifier"

class MagicController: UIViewController {

    let data: [ViewData] = DataProvider.data
    
    lazy var tableView: UITableView = {
        let view = UITableView()

uvolchyk

import SwiftUI

// MARK: - Scroll Behavior

/// A structure that defines a snapping behavior for scroll targets, conforming to `ScrollTargetBehavior`.
struct SnapScrollTargetBehavior: ScrollTargetBehavior {
  /// The step value to which the scroll target should snap.
  let step: Double
  
  /// Computes the closest multiple of `b` to the given value `a`.

uvolchyk

import MetalKit

final class DissolveRenderer: NSObject {
  private let device: MTLDevice
  private let commandQueue: MTLCommandQueue

  private let pipelineState: MTLRenderPipelineState

  private var vertexBuffer: MTLBuffer!
  private var vertexCount = 0

uvolchyk

import SwiftUI

/// Represents Apple's "Hello" greeting.
/// Requires .frame(width: 1212, height: 401) canvas to display correctly
struct HelloShape: Shape {
  func path(in rect: CGRect) -> Path {

    var shape = Path()
    shape.move(to: CGPoint(x: 18, y: 362.78))
    shape.addCurve(to: CGPoint(x: 255.5, y: 72.78), control1: CGPoint(x: 123.36, y: 301.04), control2: CGPoint(x: 240.76, y: 204.38))

uvolchyk

import MetalKit

struct ConstantBuffer<T> {
  let length: Int
  var data: UnsafeMutablePointer<T>
  var position: Int

  static var stepSize: Int {
    MemoryLayout<T>.stride
  }

uvolchyk

import UIKit

public final class SpatialContainerView: UIVisualEffectView {
  private lazy var borderLayer: CAShapeLayer = {
    let layer = CAShapeLayer()
    layer.strokeColor = UIColor.white.withAlphaComponent(0.2).cgColor
    layer.fillColor = UIColor.clear.cgColor
    layer.lineWidth = borderWidth
    return layer
  }()

uvolchyk

import SwiftUI

struct BloomingFirework: View {
  @State var time: Double = 0
  let endPoint: CGPoint
  let burstColor: Color
  
  let timer = Timer.publish(
    every: 1/120,
    on: .main,