├── JSMatrixCodeRainView.swift
├── LICENSE.md
├── NFILicense.txt
├── README.md
├── demo.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   ├── contents.xcworkspacedata
    │   ├── xcshareddata
    │   │   └── IDEWorkspaceChecks.plist
    │   └── xcuserdata
    │   │   └── showing.xcuserdatad
    │   │       └── UserInterfaceState.xcuserstate
    └── xcuserdata
    │   ├── showing.xcuserdatad
    │       ├── xcdebugger
    │       │   └── Breakpoints_v2.xcbkptlist
    │       └── xcschemes
    │       │   └── xcschememanagement.plist
    │   └── shuozhang.xcuserdatad
    │       ├── xcdebugger
    │           └── Breakpoints_v2.xcbkptlist
    │       └── xcschemes
    │           ├── demo.xcscheme
    │           └── xcschememanagement.plist
├── demo
    ├── AppDelegate.swift
    ├── Assets.xcassets
    │   └── AppIcon.appiconset
    │   │   └── Contents.json
    ├── Base.lproj
    │   ├── LaunchScreen.storyboard
    │   └── Main.storyboard
    ├── Info.plist
    ├── JSMatrixCodeRainView.swift
    ├── ViewController.swift
    └── matrixcode.ttf
└── matrixcode.ttf


/JSMatrixCodeRainView.swift:
--------------------------------------------------------------------------------
  1 | //
  2 | //  JSMatrixCodeRainView.swift
  3 | //  matrixCodeRain
  4 | //
  5 | //  Created by Shuo Zhang on 2016/9/30.
  6 | //  Copyright © 2016年 Jon Showing. All rights reserved.
  7 | //
  8 | 
  9 | import Foundation
 10 | import UIKit
 11 | import QuartzCore
 12 | //import CoreMotion
 13 | 
 14 | fileprivate class PingThread: Thread{
 15 |     var pingTaskIsRunning = false
 16 |     var semaphore = DispatchSemaphore(value: 0)
 17 |     override func main(){
 18 |         while !self.isCancelled{
 19 |             pingTaskIsRunning = true
 20 |             DispatchQueue.main.async {
 21 |                 self.pingTaskIsRunning = false
 22 |                 self.semaphore.signal()
 23 |             }
 24 |             Thread.sleep(forTimeInterval: 1/30.0)
 25 |             if pingTaskIsRunning {
 26 |                 NSLog("Delayed!")
 27 |             }
 28 |             _ = semaphore.wait(timeout: DispatchTime.distantFuture)
 29 |         }
 30 |     }
 31 | }
 32 | 
 33 | fileprivate struct JSMatrixConstants {
 34 |     static let maxGlowLength: Int = 3 // Characters
 35 |     static let minTrackLength: Int = 8 // Characters
 36 |     static let maxTrackLength: Int = 40 // Characters
 37 |     static let charactersSpacing: CGFloat = 0.0 // pixel
 38 |     static let characterChangeRate = 0.9
 39 |     static let firstDropShowTime = 2.0 // Time between the First drop and the later
 40 |     
 41 |     // Configurable
 42 |     static let speed: TimeInterval = 0.15 // Seconds that new character pop up
 43 |     static let newTrackComingLap: TimeInterval = 0.4
 44 |     static let tracksSpacing: Int = 5
 45 | }
 46 | 
 47 | fileprivate class JSMatrixTrack: Hashable, Equatable {
 48 |     var glowLength: Int
 49 |     var fadeLength: Int
 50 |     var totalLength: Int
 51 |     var positionY: Int{
 52 |         didSet{
 53 |             if positionY > totalLength {
 54 |                 topY += (positionY - oldValue)
 55 |             }
 56 |         }
 57 |     }
 58 |     var trackNum: Int
 59 |     var positionX: CGFloat{
 60 |         return CGFloat(trackNum) * (JSMatrixDataSource.characterSize.width + 2.0)
 61 |     }
 62 |     var hashValue: Int{
 63 |         return trackNum
 64 |     }
 65 |     var topY: Int = 0
 66 |     weak var layer: JSMatrixTrackLayer?
 67 |     weak var datasource: JSMatrixDataSource?
 68 |     var timer: Timer?
 69 |     
 70 |     static func ==(lhs: JSMatrixTrack, rhs: JSMatrixTrack) -> Bool{
 71 |         return lhs.trackNum == rhs.trackNum
 72 |     }
 73 |     
 74 |     func getBrightness(currentTopY: Int, currentBottomY: Int) -> CGFloat{
 75 |         let index = currentBottomY - currentTopY - 1
 76 |         let rawData = 1 - CGFloat(index) / CGFloat(totalLength) // index = 0 is the brightest case
 77 |         if index < glowLength {
 78 |             return rawData * 1.2
 79 |         }else if index > totalLength - fadeLength{
 80 |             return rawData * 0.4
 81 |         }else{
 82 |             return rawData
 83 |         }
 84 |     }
 85 |     
 86 |     init(length: Int, trackNum _trackNum: Int) {
 87 |         self.positionY = 0
 88 |         self.totalLength = length
 89 |         self.trackNum = _trackNum
 90 |         
 91 |         glowLength = Int(arc4random_uniform(UInt32(min(JSMatrixConstants.maxGlowLength, length))))
 92 |         let fadeLengthRange = length - glowLength
 93 |         fadeLength = Int(arc4random_uniform(UInt32(fadeLengthRange)))
 94 |         
 95 |         timer = Timer.scheduledTimer(timeInterval: JSMatrixDataSource.sharedDataSource.speed, target: self, selector: #selector(self.drop), userInfo: nil, repeats: true)
 96 |     }
 97 |     
 98 |     @objc func drop(){
 99 |         self.positionY += 1
100 |         if self.topY >= JSMatrixDataSource.maxNum{
101 |             self.layer?.removeFromSuperlayer()
102 |             timer?.invalidate()
103 |         }else{
104 |             self.layer?.drawAsync()
105 |         }
106 |     }
107 | }
108 | 
109 | fileprivate class JSMatrixDataSource{
110 |     static let sharedDataSource: JSMatrixDataSource = JSMatrixDataSource()
111 |     
112 |     static let trackNum: Int = Int(ceilf(Float(UIScreen.main.bounds.width / JSMatrixDataSource.characterSize.width)))
113 |     static let maxNum: Int = Int(ceilf(Float(UIScreen.main.bounds.height / JSMatrixDataSource.characterSize.height)))
114 |     
115 |     static let characterSet = "abcdefghijklmnopqrstuvwxzyABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890"
116 |     static let characterSize = "T".size(attributes: JSMatrixDataSource.getBrightnessAttributes(brightness: 1.0))
117 |     static func getCharacter() -> String{
118 |         let randomNum = Int(arc4random_uniform(UInt32(characterSet.characters.count)))
119 |         let randomIndex = characterSet.index(characterSet.startIndex, offsetBy: randomNum)
120 |         return String(characterSet[randomIndex])
121 |     }
122 |     static func getBrightnessAttributes(brightness: CGFloat) -> [String: Any]{
123 |         return [NSForegroundColorAttributeName: UIColor.init(hue: 127.0/360.0, saturation: 97.0/100.0, brightness: brightness, alpha: 1.0),
124 |                 NSFontAttributeName: UIFont(name: "Matrix Code NFI", size: 17)!,
125 |                 NSShadowAttributeName: {
126 |                     let shadow = NSShadow()
127 |                     shadow.shadowBlurRadius = 2.0
128 |                     shadow.shadowColor = UIColor.init(white: 1.0, alpha: brightness)
129 |                     shadow.shadowOffset = CGSize.zero
130 |                     return shadow
131 |                     }()]
132 |     }
133 |     
134 |     var characters: [[String]] = []
135 |     var currentTracks: Set<JSMatrixTrack> = Set()
136 |     
137 |     var speed: TimeInterval = JSMatrixConstants.speed
138 |     var newTrackComingLap: TimeInterval = JSMatrixConstants.newTrackComingLap
139 |     var trackSpacing: Int = JSMatrixConstants.tracksSpacing
140 |     
141 |     init() {
142 |         for _ in 0..<JSMatrixDataSource.trackNum{
143 |             var track: [String] = []
144 |             for _ in 0..<JSMatrixDataSource.maxNum{
145 |                 track.append(JSMatrixDataSource.getCharacter())
146 |             }
147 |             characters.append(track)
148 |         }
149 |         
150 |         Timer.scheduledTimer(timeInterval: 0.02, target: self, selector: #selector(self.changeCharacter), userInfo: nil, repeats: true)
151 |     }
152 |     
153 |     public func addTrack(track: JSMatrixTrack){
154 |         currentTracks.insert(track)
155 |     }
156 |     
157 |     public func removeTrack(track: JSMatrixTrack){
158 |         currentTracks.remove(track)
159 |     }
160 |     
161 |     public func getAvailiableTracks() -> [Int]{
162 |         var availiableTracks: [Int] = [Int](0...JSMatrixDataSource.trackNum)
163 |         for track in currentTracks{
164 |             if track.topY > JSMatrixDataSource.sharedDataSource.trackSpacing{ // All the track have been shown(and the gap is enough), new ones is free to go from above
165 |                 continue
166 |             }else{
167 |                 availiableTracks = availiableTracks.filter({ (trackNum) -> Bool in
168 |                     if trackNum == track.trackNum{
169 |                         return false
170 |                     }
171 |                     return true
172 |                 })
173 |             }
174 |         }
175 |         return availiableTracks
176 |     }
177 |     
178 |     @objc func changeCharacter(){
179 |         for track in 0..<JSMatrixDataSource.trackNum{
180 |             if arc4random_uniform(10) < UInt32(JSMatrixConstants.characterChangeRate * 10){
181 |                 let randomNum = Int(arc4random_uniform(UInt32(JSMatrixDataSource.maxNum)))
182 |                 let randomIndex = characters.index(0, offsetBy: randomNum)
183 |                 characters[track][randomIndex] = JSMatrixDataSource.getCharacter()
184 |             }
185 |         }
186 |     }
187 | }
188 | 
189 | fileprivate protocol JSMatrixTrackGeneratorDataSource: class{
190 |     func availiableTracks() -> [Int]
191 | }
192 | fileprivate protocol JSMatrixTrackGeneratorDelegate: class {
193 |     func didGeneratedNewTrack(newTrack: JSMatrixTrack)
194 | }
195 | 
196 | fileprivate class JSMatrixTrackGenerator{
197 |     weak var delegate: JSMatrixTrackGeneratorDelegate?
198 |     weak var datasource: JSMatrixTrackGeneratorDataSource?
199 |     
200 |     func getTrack() -> JSMatrixTrack{
201 |         if let availableTracks = datasource?.availiableTracks(){
202 |             let randomNum = Int(arc4random_uniform(UInt32(availableTracks.count - 1)))
203 |             let track = JSMatrixTrack(length: Int(arc4random_uniform(UInt32(JSMatrixDataSource.maxNum - JSMatrixConstants.minTrackLength))) + JSMatrixConstants.minTrackLength,
204 |                                       trackNum: availableTracks[randomNum])
205 |             return track
206 |         }else{
207 |             return JSMatrixTrack(length: Int(arc4random_uniform(UInt32(JSMatrixDataSource.maxNum - JSMatrixConstants.minTrackLength))) + JSMatrixConstants.minTrackLength,
208 |                                  trackNum: 0)
209 |         }
210 |     }
211 |     
212 |     func getTrack(trackNumber: Int) -> JSMatrixTrack {
213 |         return JSMatrixTrack(length: Int(arc4random_uniform(UInt32(JSMatrixDataSource.maxNum - JSMatrixConstants.minTrackLength))) + JSMatrixConstants.minTrackLength,
214 |                              trackNum: trackNumber)
215 |     }
216 |     
217 |     func begin(){
218 |         Timer.scheduledTimer(timeInterval: JSMatrixDataSource.sharedDataSource.newTrackComingLap, target: self, selector: #selector(self.produceTrack), userInfo: nil, repeats: true)
219 |     }
220 |     
221 |     @objc func produceTrack(){
222 |         self.delegate?.didGeneratedNewTrack(newTrack: self.getTrack())
223 |     }
224 | }
225 | 
226 | fileprivate class JSMatrixTrackLayer: CALayer {
227 |     var track: JSMatrixTrack
228 |     
229 |     init(track _track: JSMatrixTrack) {
230 |         track = _track
231 |         
232 |         super.init()
233 |         
234 |         self.contentsScale = UIScreen.main.scale
235 |         
236 |         self.drawsAsynchronously = true
237 |     }
238 |     
239 |     required init?(coder aDecoder: NSCoder) {
240 |         fatalError("init(coder:) has not been implemented")
241 |     }
242 |     
243 |     func drawAsync() {
244 |         
245 |         let track = self.track
246 |         DispatchQueue.global().async {
247 |             let size = self.bounds.size
248 |             UIGraphicsBeginImageContext(size)
249 |             let colorSpace = CGColorSpaceCreateDeviceRGB()
250 |             let createdContext = CGContext(data: nil, width: Int(size.width), height: Int(size.height), bitsPerComponent: 8, bytesPerRow: 0, space: colorSpace, bitmapInfo: CGImageAlphaInfo.premultipliedLast.rawValue)
251 |             
252 |             if let context = createdContext{
253 |                 context.saveGState()
254 |                 
255 |                 let positionY: Int = track.positionY
256 |                 var topY: Int = track.topY
257 |                 
258 |                 if let col = track.datasource?.characters[track.trackNum]{
259 |                     var range = 0..<positionY // track have not fully shown
260 |                     if positionY > track.totalLength {
261 |                         if positionY < JSMatrixDataSource.maxNum{ // track have fully shown
262 |                             range = topY..<min(topY + track.totalLength, JSMatrixDataSource.maxNum)
263 |                         }else{ // track is truncted at bottom
264 |                             range = topY..<JSMatrixDataSource.maxNum
265 |                         }
266 |                     }
267 |                     for characterIndex in range{
268 |                         let character = col[characterIndex]
269 |                         
270 |                         character.draw(in: CGRect(origin: CGPoint(x:0, y: CGFloat(topY) * JSMatrixDataSource.characterSize.height), size: JSMatrixDataSource.characterSize),
271 |                                        withAttributes: JSMatrixDataSource.getBrightnessAttributes(brightness: track.getBrightness(currentTopY: topY, currentBottomY: positionY)))
272 |                         topY += 1
273 |                     }
274 |                 }
275 |                 context.restoreGState()
276 |                 self.render(in: context)
277 |                 let resultImage = UIGraphicsGetImageFromCurrentImageContext();
278 |                 DispatchQueue.main.async {
279 |                     if let image = resultImage{
280 |                         self.contents = image.cgImage
281 |                     }
282 |                 }
283 |             }
284 |             UIGraphicsEndImageContext()
285 |         }
286 |         
287 |     }
288 | }
289 | 
290 | class JSMatrixCodeRainView: UIView, JSMatrixTrackGeneratorDataSource, JSMatrixTrackGeneratorDelegate {
291 |     fileprivate lazy var datasource: JSMatrixDataSource = JSMatrixDataSource.sharedDataSource
292 |     fileprivate lazy var generator: JSMatrixTrackGenerator = {
293 |         $0.delegate = self
294 |         $0.datasource = self
295 |         return $0
296 |     }(JSMatrixTrackGenerator())
297 |     fileprivate lazy var containerLayer: CALayer = {
298 |         $0.frame = self.bounds//.insetBy(dx: -200, dy: -200)
299 |         $0.zPosition = -CGFloat.greatestFiniteMagnitude + 1
300 |         $0.drawsAsynchronously = true
301 |         return $0
302 |     }(CALayer())
303 | //    fileprivate let pingThread = PingThread()
304 |     
305 |     @IBInspectable var speed: CGFloat = CGFloat(JSMatrixConstants.speed){
306 |         didSet{
307 |             datasource.speed = TimeInterval(speed)
308 |         }
309 |     }
310 |     @IBInspectable var newTrackComingLap: CGFloat = CGFloat(JSMatrixConstants.newTrackComingLap){
311 |         didSet{
312 |             datasource.newTrackComingLap = TimeInterval(newTrackComingLap)
313 |         }
314 |     }
315 |     @IBInspectable var trackSpacing: Int = JSMatrixConstants.tracksSpacing{
316 |         didSet{
317 |             datasource.trackSpacing = trackSpacing
318 |         }
319 |     }
320 |     
321 | //    lazy var displayLink: CADisplayLink = CADisplayLink(target: self, selector: #selector(self.update))
322 |     
323 | //    lazy var motionManager = CMMotionManager()
324 | //    var originRad: CGFloat?
325 |     
326 |     override init(frame: CGRect) {
327 |         super.init(frame: frame)
328 |         
329 |         self.backgroundColor = UIColor.black
330 |         self.layer.addSublayer(containerLayer)
331 |         
332 | //        pingThread.start()
333 |         
334 | //        displayLink.add(to: RunLoop.main, forMode: RunLoopMode.commonModes)
335 | //        
336 | //        if motionManager.isDeviceMotionAvailable{
337 | //            motionManager.startDeviceMotionUpdates(using: CMAttitudeReferenceFrame.xArbitraryZVertical)
338 | //        }
339 |     }
340 |     
341 |     required init?(coder aDecoder: NSCoder) {
342 |         super.init(coder: aDecoder)
343 |         
344 |         self.backgroundColor = UIColor.black
345 |         self.layer.addSublayer(containerLayer)
346 |         
347 | //        pingThread.start()
348 |         
349 | //        displayLink.add(to: RunLoop.main, forMode: RunLoopMode.commonModes)
350 |         
351 | //        if motionManager.isDeviceMotionAvailable{
352 | //            motionManager.startDeviceMotionUpdates(using: CMAttitudeReferenceFrame.xArbitraryZVertical)
353 | //        }
354 |     }
355 |     
356 | //    @objc func update(){
357 | //        if let quat = motionManager.deviceMotion?.attitude.quaternion{
358 | //            let realRoll = atan2(2 * (quat.x * quat.y + quat.z * quat.w), 1 - 2 * (pow(quat.y, 2.0) + pow(quat.z, 2.0)))
359 | //            //            let realPitch = atan2(2 * (quat.x * quat.w + quat.y * quat.z), 1 - 2 * (pow(quat.z, 2.0) + pow(quat.w, 2.0)))
360 | //            //            if originRad == nil{
361 | //            //                originRad = CGFloat(realPitch)
362 | //            //            }
363 | //            
364 | //            var rollTransform = CATransform3DIdentity
365 | //            rollTransform.m43 = (-1) / 500
366 | //            rollTransform = CATransform3DRotate(rollTransform, CGFloat(realRoll), 0, 1, 0)
367 | //            //            var pitchTransform = CATransform3DIdentity
368 | //            //            pitchTransform.m43 = (-1) / 500
369 | //            //            pitchTransform = CATransform3DRotate(pitchTransform, originRad! - CGFloat(realPitch), 1, 0, 0)
370 | //            //            let concatTransform = CATransform3DConcat(rollTransform, pitchTransform)
371 | //            self.containerLayer.transform = rollTransform
372 | //        }
373 | //    }
374 |     
375 |     override func willMove(toSuperview newSuperview: UIView?) {
376 |         super.willMove(toSuperview: newSuperview)
377 |         
378 |         let track = generator.getTrack(trackNumber: JSMatrixDataSource.trackNum / 2)
379 |         self.didGeneratedNewTrack(newTrack: track)
380 |         
381 |         DispatchQueue.main.asyncAfter(deadline: .now() + JSMatrixConstants.firstDropShowTime) {
382 |             self.generator.begin()
383 |         }
384 |     }
385 |     
386 |     fileprivate func availiableTracks() -> [Int] {
387 |         return datasource.getAvailiableTracks()
388 |     }
389 |     
390 |     fileprivate func didGeneratedNewTrack(newTrack: JSMatrixTrack) {
391 |         newTrack.datasource = datasource
392 |         datasource.addTrack(track: newTrack)
393 |         let layer = JSMatrixTrackLayer(track: newTrack)
394 |         layer.frame = CGRect(origin: CGPoint(x: newTrack.positionX, y: 0),
395 |                              size: CGSize(width: JSMatrixDataSource.characterSize.width, height: UIScreen.main.bounds.height))
396 |         containerLayer.addSublayer(layer)
397 |         layer.drawAsync()
398 |         newTrack.layer = layer
399 |     }
400 | }
401 | 


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/LICENSE.md:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | =====================
 3 | 
 4 | Copyright (c) 2016 Jon Showing
 5 | ----------------------------------
 6 | 
 7 | 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 furnished to do so, subject to the following conditions:
 8 | 
 9 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
10 | 
11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
12 | 


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/NFILicense.txt:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/zshowing/JSMatrixCodeRainView/4e811957cb81b164dc9018ec161533042ec5580c/NFILicense.txt


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/README.md:
--------------------------------------------------------------------------------
 1 | # JSMatrixCodeRainView
 2 | 
 3 | **Code Rain**, or [Digital Rain](https://en.wikipedia.org/wiki/Matrix_digital_rain), is a famous visual effect from the Matrix movie trilogy. This view is a Swift implementation to it.
 4 | 
 5 | ![](http://ww3.sinaimg.cn/large/5613ec79jw1f8hmevmxy9g20a00hsb29.gif)
 6 | 
 7 | # Requirements
 8 | 
 9 | JSMatrixCodeRainView works on iOS8.0+(Tested) with ARC projects.
10 | 
11 | It uses the following frameworks:
12 | - Foundation.framework
13 | - UIKit.framework
14 | - QuartzCore.framework
15 | 
16 | # Usage
17 | 
18 | 1. Modify your Info.plist;
19 | 
20 |     The view used a customized font called 'Matrix Code NFI', to include that you need to add an entry, `Fonts provided by application` in the `Info.plist`.
21 | 
22 |     ![](http://ww4.sinaimg.cn/large/5613ec79jw1f8hm06k2djj212m0meth1.jpg)
23 | 
24 | 2. Copy `JSMatrixCodeRainView.swift` and the font file to your project;
25 | 3. Configure if needed. There are three configurable variables now:
26 |     - `speed`, a `CGFloat` value, the unit is in `second`, controls the speed of the animation. The value is the time interval of the characters coming from above.  
27 |         For example, the default value is 0.15, which means in every 0.15s, a new character will drop (if reasonable).
28 |     - `newTrackComingLap`, also a `CGFloat` value, the unit is `second`, generally control the number of the tracks.  
29 |         Again as an example, the default value is 0.4, means that in every 0.4s, a new track will drop down from the available space (that is, there's no others occupying.)
30 |     - `tracksSpacing`, an `Int` value, the unit is `character`, control the spacing of two tracks.  
31 |         The default value is 5, therefore after a track is completely shown, there will be no other track from the same line unless 5 characters passed.
32 | 
33 |           
34 |     You can manually set it or set it via Interface Builder, as shown below:
35 | 
36 |     ![](http://ww1.sinaimg.cn/large/5613ec79jw1f8hq5majxfj20du050jrx.jpg)
37 | 
38 | 4. That's all. Use it as any `UIView`s.
39 | 
40 | # Special Thanks
41 | 
42 | The font `Matrix Code NFI` is from Norfok® Inc. software.
43 | 
44 | # License
45 | 
46 | This code is distributed under the terms and conditions of the [MIT license](./LICENSE.md).  
47 | Also check the [`Matrix Code NFI` license](./NFILicense.txt) if you're intended to commercial use.


--------------------------------------------------------------------------------
/demo.xcodeproj/project.pbxproj:
--------------------------------------------------------------------------------
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101 | 				ORGANIZATIONNAME = "Jon Showing";
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105 | 						DevelopmentTeam = TWSN29Y9H7;
106 | 						LastSwiftMigration = 1010;
107 | 						ProvisioningStyle = Automatic;
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111 | 			buildConfigurationList = 54A5110D1DA401AE00BE5C34 /* Build configuration list for PBXProject "demo" */;
112 | 			compatibilityVersion = "Xcode 3.2";
113 | 			developmentRegion = English;
114 | 			hasScannedForEncodings = 0;
115 | 			knownRegions = (
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136 | 				54A5111D1DA401AE00BE5C34 /* Assets.xcassets in Resources */,
137 | 				54A5112A1DA4031500BE5C34 /* matrixcode.ttf in Resources */,
138 | 				54A5111B1DA401AE00BE5C34 /* Main.storyboard in Resources */,
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140 | 			runOnlyForDeploymentPostprocessing = 0;
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144 | /* Begin PBXSourcesBuildPhase section */
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147 | 			buildActionMask = 2147483647;
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150 | 				54A511161DA401AE00BE5C34 /* AppDelegate.swift in Sources */,
151 | 				54A511281DA4021500BE5C34 /* JSMatrixCodeRainView.swift in Sources */,
152 | 			);
153 | 			runOnlyForDeploymentPostprocessing = 0;
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158 | 		54A511191DA401AE00BE5C34 /* Main.storyboard */ = {
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161 | 				54A5111A1DA401AE00BE5C34 /* Base */,
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163 | 			name = Main.storyboard;
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169 | 				54A5111F1DA401AE00BE5C34 /* Base */,
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171 | 			name = LaunchScreen.storyboard;
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181 | 				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
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183 | 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
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207 | 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
208 | 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
209 | 				COPY_PHASE_STRIP = NO;
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82 |          <BuildableReference
83 |             BuildableIdentifier = "primary"
84 |             BlueprintIdentifier = "54A511111DA401AE00BE5C34"
85 |             BuildableName = "demo.app"
86 |             BlueprintName = "demo"
87 |             ReferencedContainer = "container:demo.xcodeproj">
88 |          </BuildableReference>
89 |       </BuildableProductRunnable>
90 |    </ProfileAction>
91 |    <AnalyzeAction
92 |       buildConfiguration = "Debug">
93 |    </AnalyzeAction>
94 |    <ArchiveAction
95 |       buildConfiguration = "Release"
96 |       revealArchiveInOrganizer = "YES">
97 |    </ArchiveAction>
98 | </Scheme>
99 | 


--------------------------------------------------------------------------------
/demo.xcodeproj/xcuserdata/shuozhang.xcuserdatad/xcschemes/xcschememanagement.plist:
--------------------------------------------------------------------------------
 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>SchemeUserState</key>
 6 | 	<dict>
 7 | 		<key>demo.xcscheme</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | 	<key>SuppressBuildableAutocreation</key>
14 | 	<dict>
15 | 		<key>54A511111DA401AE00BE5C34</key>
16 | 		<dict>
17 | 			<key>primary</key>
18 | 			<true/>
19 | 		</dict>
20 | 	</dict>
21 | </dict>
22 | </plist>
23 | 


--------------------------------------------------------------------------------
/demo/AppDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.swift
 3 | //  demo
 4 | //
 5 | //  Created by Shuo Zhang on 2016/10/4.
 6 | //  Copyright © 2016年 Jon Showing. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 | 
14 |     var window: UIWindow?
15 | 
16 | 
17 |     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
18 |         // Override point for customization after application launch.
19 |         return true
20 |     }
21 | 
22 |     func applicationWillResignActive(_ application: UIApplication) {
23 |         // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
24 |         // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
25 |     }
26 | 
27 |     func applicationDidEnterBackground(_ application: UIApplication) {
28 |         // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
29 |         // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
30 |     }
31 | 
32 |     func applicationWillEnterForeground(_ application: UIApplication) {
33 |         // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
34 |     }
35 | 
36 |     func applicationDidBecomeActive(_ application: UIApplication) {
37 |         // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
38 |     }
39 | 
40 |     func applicationWillTerminate(_ application: UIApplication) {
41 |         // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
42 |     }
43 | 
44 | 
45 | }
46 | 
47 | 


--------------------------------------------------------------------------------
/demo/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "20x20",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "20x20",
11 |       "scale" : "3x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "29x29",
16 |       "scale" : "2x"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "size" : "29x29",
21 |       "scale" : "3x"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "size" : "40x40",
26 |       "scale" : "2x"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "size" : "40x40",
31 |       "scale" : "3x"
32 |     },
33 |     {
34 |       "idiom" : "iphone",
35 |       "size" : "60x60",
36 |       "scale" : "2x"
37 |     },
38 |     {
39 |       "idiom" : "iphone",
40 |       "size" : "60x60",
41 |       "scale" : "3x"
42 |     },
43 |     {
44 |       "idiom" : "ipad",
45 |       "size" : "20x20",
46 |       "scale" : "1x"
47 |     },
48 |     {
49 |       "idiom" : "ipad",
50 |       "size" : "20x20",
51 |       "scale" : "2x"
52 |     },
53 |     {
54 |       "idiom" : "ipad",
55 |       "size" : "29x29",
56 |       "scale" : "1x"
57 |     },
58 |     {
59 |       "idiom" : "ipad",
60 |       "size" : "29x29",
61 |       "scale" : "2x"
62 |     },
63 |     {
64 |       "idiom" : "ipad",
65 |       "size" : "40x40",
66 |       "scale" : "1x"
67 |     },
68 |     {
69 |       "idiom" : "ipad",
70 |       "size" : "40x40",
71 |       "scale" : "2x"
72 |     },
73 |     {
74 |       "idiom" : "ipad",
75 |       "size" : "76x76",
76 |       "scale" : "1x"
77 |     },
78 |     {
79 |       "idiom" : "ipad",
80 |       "size" : "76x76",
81 |       "scale" : "2x"
82 |     },
83 |     {
84 |       "idiom" : "ipad",
85 |       "size" : "83.5x83.5",
86 |       "scale" : "2x"
87 |     },
88 |     {
89 |       "idiom" : "ios-marketing",
90 |       "size" : "1024x1024",
91 |       "scale" : "1x"
92 |     }
93 |   ],
94 |   "info" : {
95 |     "version" : 1,
96 |     "author" : "xcode"
97 |   }
98 | }


--------------------------------------------------------------------------------
/demo/Base.lproj/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <device id="retina4_7" orientation="portrait">
 4 |         <adaptation id="fullscreen"/>
 5 |     </device>
 6 |     <dependencies>
 7 |         <deployment identifier="iOS"/>
 8 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
 9 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
10 |     </dependencies>
11 |     <scenes>
12 |         <!--View Controller-->
13 |         <scene sceneID="EHf-IW-A2E">
14 |             <objects>
15 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
16 |                     <layoutGuides>
17 |                         <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
18 |                         <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
19 |                     </layoutGuides>
20 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
21 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
22 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
23 |                         <color key="backgroundColor" white="0.0" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
24 |                     </view>
25 |                 </viewController>
26 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
27 |             </objects>
28 |             <point key="canvasLocation" x="53" y="375"/>
29 |         </scene>
30 |     </scenes>
31 | </document>
32 | 


--------------------------------------------------------------------------------
/demo/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15505" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
  3 |     <device id="retina4_7" orientation="portrait" appearance="light"/>
  4 |     <dependencies>
  5 |         <deployment identifier="iOS"/>
  6 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15510"/>
  7 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
  8 |     </dependencies>
  9 |     <scenes>
 10 |         <!--View Controller-->
 11 |         <scene sceneID="tne-QT-ifu">
 12 |             <objects>
 13 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="demo" customModuleProvider="target" sceneMemberID="viewController">
 14 |                     <layoutGuides>
 15 |                         <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
 16 |                         <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
 17 |                     </layoutGuides>
 18 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC" customClass="JSMatrixCodeRainView" customModule="demo" customModuleProvider="target">
 19 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
 20 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
 21 |                         <subviews>
 22 |                             <visualEffectView hidden="YES" opaque="NO" alpha="0.59999999999999998" contentMode="scaleToFill" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="ryg-a1-GgM">
 23 |                                 <rect key="frame" x="67" y="305" width="240" height="128"/>
 24 |                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
 25 |                                 <view key="contentView" opaque="NO" clipsSubviews="YES" clearsContextBeforeDrawing="NO" multipleTouchEnabled="YES" contentMode="center" ambiguous="YES" id="Lgj-86-s4Z">
 26 |                                     <rect key="frame" x="0.0" y="0.0" width="240" height="128"/>
 27 |                                     <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
 28 |                                     <subviews>
 29 |                                         <textField opaque="NO" clipsSubviews="YES" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="Esw-1K-G3X">
 30 |                                             <rect key="frame" x="112" y="79" width="97" height="30"/>
 31 |                                             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
 32 |                                             <fontDescription key="fontDescription" type="system" pointSize="14"/>
 33 |                                             <textInputTraits key="textInputTraits"/>
 34 |                                         </textField>
 35 |                                         <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Password" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="K93-Im-JZH">
 36 |                                             <rect key="frame" x="19" y="84" width="74" height="21"/>
 37 |                                             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
 38 |                                             <fontDescription key="fontDescription" type="system" pointSize="17"/>
 39 |                                             <color key="textColor" name="alternateSelectedControlTextColor" catalog="System" colorSpace="catalog"/>
 40 |                                             <nil key="highlightedColor"/>
 41 |                                         </label>
 42 |                                         <textField opaque="NO" clipsSubviews="YES" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="NgI-2C-OmL">
 43 |                                             <rect key="frame" x="112" y="24" width="97" height="30"/>
 44 |                                             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
 45 |                                             <fontDescription key="fontDescription" type="system" pointSize="14"/>
 46 |                                             <textInputTraits key="textInputTraits"/>
 47 |                                         </textField>
 48 |                                         <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Username" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Eru-nT-XjB">
 49 |                                             <rect key="frame" x="19" y="29" width="79" height="21"/>
 50 |                                             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
 51 |                                             <fontDescription key="fontDescription" type="system" pointSize="17"/>
 52 |                                             <color key="textColor" name="alternateSelectedControlTextColor" catalog="System" colorSpace="catalog"/>
 53 |                                             <nil key="highlightedColor"/>
 54 |                                         </label>
 55 |                                     </subviews>
 56 |                                 </view>
 57 |                                 <color key="backgroundColor" white="1" alpha="0.12332214765100671" colorSpace="calibratedWhite"/>
 58 |                                 <blurEffect style="light"/>
 59 |                             </visualEffectView>
 60 |                             <visualEffectView hidden="YES" opaque="NO" alpha="0.59999999999999998" contentMode="scaleToFill" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="PdI-vi-KXb">
 61 |                                 <rect key="frame" x="67" y="102" width="240" height="128"/>
 62 |                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
 63 |                                 <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" ambiguous="YES" id="PkQ-tY-uJf">
 64 |                                     <rect key="frame" x="0.0" y="0.0" width="240" height="128"/>
 65 |                                     <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
 66 |                                     <subviews>
 67 |                                         <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Alibaba" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Vj6-OO-i80">
 68 |                                             <rect key="frame" x="92" y="38" width="57" height="21"/>
 69 |                                             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
 70 |                                             <fontDescription key="fontDescription" type="system" pointSize="17"/>
 71 |                                             <color key="textColor" name="alternateSelectedControlTextColor" catalog="System" colorSpace="catalog"/>
 72 |                                             <nil key="highlightedColor"/>
 73 |                                         </label>
 74 |                                         <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Mooncake System" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aKU-e8-McV">
 75 |                                             <rect key="frame" x="50" y="70" width="141" height="21"/>
 76 |                                             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
 77 |                                             <fontDescription key="fontDescription" type="system" pointSize="17"/>
 78 |                                             <color key="textColor" name="alternateSelectedControlTextColor" catalog="System" colorSpace="catalog"/>
 79 |                                             <nil key="highlightedColor"/>
 80 |                                         </label>
 81 |                                     </subviews>
 82 |                                 </view>
 83 |                                 <color key="backgroundColor" white="1" alpha="0.23301174496644295" colorSpace="calibratedWhite"/>
 84 |                                 <blurEffect style="light"/>
 85 |                             </visualEffectView>
 86 |                         </subviews>
 87 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
 88 |                         <userDefinedRuntimeAttributes>
 89 |                             <userDefinedRuntimeAttribute type="number" keyPath="trackSpacing">
 90 |                                 <integer key="value" value="5"/>
 91 |                             </userDefinedRuntimeAttribute>
 92 |                             <userDefinedRuntimeAttribute type="number" keyPath="newTrackComingLap">
 93 |                                 <real key="value" value="0.40000000000000002"/>
 94 |                             </userDefinedRuntimeAttribute>
 95 |                             <userDefinedRuntimeAttribute type="number" keyPath="speed">
 96 |                                 <real key="value" value="0.10000000000000001"/>
 97 |                             </userDefinedRuntimeAttribute>
 98 |                         </userDefinedRuntimeAttributes>
 99 |                     </view>
100 |                 </viewController>
101 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
102 |             </objects>
103 |             <point key="canvasLocation" x="61.600000000000001" y="37.331334332833585"/>
104 |         </scene>
105 |     </scenes>
106 | </document>
107 | 


--------------------------------------------------------------------------------
/demo/Info.plist:
--------------------------------------------------------------------------------
 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>CFBundleDevelopmentRegion</key>
 6 | 	<string>en</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>APPL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | 	<key>LSRequiresIPhoneOS</key>
22 | 	<true/>
23 | 	<key>UIAppFonts</key>
24 | 	<array>
25 | 		<string>matrixcode.ttf</string>
26 | 	</array>
27 | 	<key>UILaunchStoryboardName</key>
28 | 	<string>LaunchScreen</string>
29 | 	<key>UIMainStoryboardFile</key>
30 | 	<string>Main</string>
31 | 	<key>UIRequiredDeviceCapabilities</key>
32 | 	<array>
33 | 		<string>armv7</string>
34 | 	</array>
35 | 	<key>UISupportedInterfaceOrientations</key>
36 | 	<array>
37 | 		<string>UIInterfaceOrientationPortrait</string>
38 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
39 | 		<string>UIInterfaceOrientationLandscapeRight</string>
40 | 	</array>
41 | 	<key>UISupportedInterfaceOrientations~ipad</key>
42 | 	<array>
43 | 		<string>UIInterfaceOrientationPortrait</string>
44 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
45 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
46 | 		<string>UIInterfaceOrientationLandscapeRight</string>
47 | 	</array>
48 | </dict>
49 | </plist>
50 | 


--------------------------------------------------------------------------------
/demo/JSMatrixCodeRainView.swift:
--------------------------------------------------------------------------------
  1 | //
  2 | //  JSMatrixCodeRainView.swift
  3 | //  matrixCodeRain
  4 | //
  5 | //  Created by Shuo Zhang on 2016/9/30.
  6 | //  Copyright © 2016年 Jon Showing. All rights reserved.
  7 | //
  8 | 
  9 | import Foundation
 10 | import UIKit
 11 | import QuartzCore
 12 | 
 13 | fileprivate struct JSMatrixConstants {
 14 |     static let maxGlowLength: Int = 3 // Characters
 15 |     static let minTrackLength: Int = 8 // Characters
 16 |     static let maxTrackLength: Int = 40 // Characters
 17 |     static let charactersSpacing: CGFloat = 0.0 // pixel
 18 |     static let characterChangeRate = 0.9
 19 |     static let firstDropShowTime = 1.0 // Time between the First drop and the later
 20 |     
 21 |     // Configurable
 22 |     static let speed: TimeInterval = 0.1 // Seconds that new character pop up
 23 |     static let newTrackComingLap: TimeInterval = 3
 24 |     static let tracksSpacing: Int = 5
 25 | }
 26 | 
 27 | fileprivate class JSMatrixTrack {
 28 |     var glowLength: Int = 0
 29 |     var fadeLength: Int = 0
 30 |     var totalLength: Int{
 31 |         didSet{
 32 |             self.glowLength = Int(arc4random_uniform(UInt32(min(JSMatrixConstants.maxGlowLength, totalLength))))
 33 |             let fadeLengthRange = totalLength - glowLength
 34 |             self.fadeLength = Int(arc4random_uniform(UInt32(fadeLengthRange)))
 35 |         }
 36 |     }
 37 |     var layer: JSMatrixTrackLayer
 38 |     var characters: [String]
 39 |     
 40 |     func setupPulse(length: Int) {
 41 |         self.layer.setupPulse(length: self.totalLength, fadeLength: self.fadeLength)
 42 |         DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double(JSMatrixDataSource.maxNum + length) * JSMatrixDataSource.sharedDataSource.speed + Double(arc4random_uniform(UInt32(JSMatrixConstants.newTrackComingLap))) , execute: {
 43 |             self.totalLength = Int(arc4random_uniform(UInt32(JSMatrixDataSource.maxNum - JSMatrixConstants.minTrackLength))) + JSMatrixConstants.minTrackLength
 44 |             self.setupPulse(length: self.totalLength)
 45 |         })
 46 |     }
 47 |     
 48 |     @objc func changeCharacter(){
 49 |         if arc4random_uniform(10) < UInt32(JSMatrixConstants.characterChangeRate * 10){
 50 |             let randomIndex = Int(arc4random_uniform(UInt32(self.characters.count)))
 51 |             self.layer.updateCharacter(JSMatrixDataSource.getCharacter(), atIndex: randomIndex)
 52 |         }
 53 |     }
 54 |     
 55 |     init(layer _layer: JSMatrixTrackLayer, length _length: Int, characters _characters: [String]) {
 56 |         self.layer = _layer
 57 |         self.characters = _characters
 58 |         self.totalLength = _length
 59 |         
 60 |         Timer.scheduledTimer(timeInterval: 0.5, target: self,
 61 |                              selector: #selector(self.changeCharacter),
 62 |                              userInfo: nil, repeats: true)
 63 |         
 64 |         DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + JSMatrixConstants.firstDropShowTime + Double(arc4random_uniform(UInt32(JSMatrixDataSource.trackNum))) + Double(arc4random_uniform(UInt32(JSMatrixDataSource.sharedDataSource.newTrackComingLap)))) {
 65 |             self.setupPulse(length: self.totalLength)
 66 |         }
 67 |     }
 68 | }
 69 | 
 70 | fileprivate class JSMatrixDataSource{
 71 |     static let sharedDataSource: JSMatrixDataSource = JSMatrixDataSource()
 72 |     
 73 |     /// Max track number
 74 |     static let trackNum: Int = Int(ceilf(Float(UIScreen.main.bounds.width / JSMatrixDataSource.characterSize.width)))
 75 |     
 76 |     /// Max character number vertically
 77 |     static let maxNum: Int = Int(ceilf(Float(UIScreen.main.bounds.height / JSMatrixDataSource.characterSize.height)))
 78 |     
 79 |     /// Character set.
 80 |     private static let characterSet = "abcdefghijklmnopqrstuvwxzyABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890"
 81 |     
 82 |     /// Character size.
 83 |     static let characterSize = "T".size(withAttributes: JSMatrixDataSource.getBrightnessAttributes(brightness: 1.0))
 84 |     
 85 |     /// Get One character.
 86 |     static func getCharacter() -> String{
 87 |         let randomNum = Int(arc4random_uniform(UInt32(characterSet.count)))
 88 |         let randomIndex = characterSet.index(characterSet.startIndex, offsetBy: randomNum)
 89 |         return String(characterSet[randomIndex])
 90 |     }
 91 |     
 92 |     /// Get characters for the given length.
 93 |     static func getCharacter(length: Int) -> [String]{
 94 |         var charArray: [String] = []
 95 |         for _ in 0..<length {
 96 |             charArray.append(getCharacter())
 97 |         }
 98 |         return charArray
 99 |     }
100 |     
101 |     /// A wrapper for the NSAttributedString attributes.
102 |     static func getBrightnessAttributes(brightness: CGFloat) -> [NSAttributedString.Key: Any]{
103 |         return [NSAttributedString.Key.foregroundColor: UIColor.init(hue: 127.0/360.0, saturation: 97.0/100.0, brightness: brightness, alpha: 1.0),
104 |                 NSAttributedString.Key.font: UIFont(name: "Matrix Code NFI", size: 17)!,
105 |                 NSAttributedString.Key.shadow: {
106 |                     let shadow = NSShadow()
107 |                     shadow.shadowBlurRadius = 2.0
108 |                     shadow.shadowColor = UIColor.init(white: 1.0, alpha: brightness)
109 |                     shadow.shadowOffset = CGSize.zero
110 |                     return shadow
111 |                     }()]
112 |     }
113 |     
114 |     var characters: [[String]] = []
115 |     var tracks: [JSMatrixTrack] = []
116 |     
117 |     var speed: TimeInterval = JSMatrixConstants.speed
118 |     var newTrackComingLap: TimeInterval = JSMatrixConstants.newTrackComingLap
119 |     var trackSpacing: Int = JSMatrixConstants.tracksSpacing
120 |     
121 |     func addTrack(track: JSMatrixTrack) {
122 |         tracks.append(track)
123 |     }
124 |     
125 |     init() {
126 |         for _ in 0..<(JSMatrixDataSource.trackNum + 1){
127 |             var track: [String] = []
128 |             for _ in 0..<JSMatrixDataSource.maxNum{
129 |                 track.append(JSMatrixDataSource.getCharacter())
130 |             }
131 |             characters.append(track)
132 |         }
133 |         
134 |         Timer.scheduledTimer(timeInterval: 0.02, target: self,
135 |                              selector: #selector(self.changeCharacter),
136 |                              userInfo: nil, repeats: true)
137 |     }
138 |     
139 |     @objc func changeCharacter(){
140 |         for track in 0..<JSMatrixDataSource.trackNum{
141 |             if arc4random_uniform(10) < UInt32(JSMatrixConstants.characterChangeRate * 10){
142 |                 let randomNum = Int(arc4random_uniform(UInt32(JSMatrixDataSource.maxNum)))
143 |                 let randomIndex = characters.index(0, offsetBy: randomNum)
144 |                 characters[track][randomIndex] = JSMatrixDataSource.getCharacter()
145 |             }
146 |         }
147 |     }
148 | }
149 | 
150 | fileprivate class JSMatrixTrackLayer: CALayer {
151 |     var trackNum: Int
152 |     lazy var layers: Array<CATextLayer> = []
153 |     
154 |     required init(trackNum _trackNum: Int) {
155 |         self.trackNum = _trackNum
156 |         
157 |         super.init()
158 |         
159 |         self.frame = CGRect(origin: CGPoint(x: CGFloat(_trackNum) * (JSMatrixDataSource.characterSize.width + 2.0), y: 0),
160 |                             size: CGSize(width: JSMatrixDataSource.characterSize.width, height: UIScreen.main.bounds.height))
161 |     }
162 |     
163 |     required init?(coder aDecoder: NSCoder) {
164 |         fatalError("init(coder:) has not been implemented")
165 |     }
166 |     
167 |     func setupCharacters(characters: [String]) {
168 |         for i in 0..<characters.count{
169 |             let layer = CATextLayer()
170 |             let attrString = NSAttributedString(string: characters[i],
171 |                                                 attributes: JSMatrixDataSource.getBrightnessAttributes(brightness: 1))
172 |             layer.string = attrString
173 |             layer.frame = CGRect(origin: CGPoint(x: 0, y: CGFloat(i) * JSMatrixDataSource.characterSize.height),
174 |                                  size: CGSize(width: self.frame.size.width,
175 |                                               height: JSMatrixDataSource.characterSize.height))
176 |             layer.opacity = 0
177 |             self.layers.append(layer)
178 |             self.addSublayer(layer)
179 |         }
180 |     }
181 |     
182 |     func updateCharacter(_ character: String, atIndex index: Int) {
183 |         let layer = self.layers[index]
184 |         layer.string = NSAttributedString(string: character,
185 |                                           attributes: JSMatrixDataSource.getBrightnessAttributes(brightness: 1))
186 |     }
187 |     
188 |     func setupPulse(length: Int, fadeLength: Int) {
189 |         // length = duration / speed -> duration = length * speed
190 |         for (index, layer) in layers.enumerated() {
191 |             DispatchQueue.main.asyncAfter(deadline: .now() + Double(index) * JSMatrixDataSource.sharedDataSource.speed) {
192 |                 let animation = CABasicAnimation(keyPath: "opacity")
193 |                 animation.duration = Double(length) * JSMatrixDataSource.sharedDataSource.speed
194 |                 animation.fillMode = CAMediaTimingFillMode.forwards
195 |                 animation.fromValue = 1
196 |                 animation.toValue = 0
197 |                 animation.beginTime = CACurrentMediaTime()
198 |                 animation.isRemovedOnCompletion = false
199 |                 layer.add(animation, forKey: "opacity")
200 |             }
201 |         }
202 |     }
203 | }
204 | 
205 | class JSMatrixCodeRainView: UIView {
206 |     fileprivate lazy var datasource: JSMatrixDataSource = JSMatrixDataSource.sharedDataSource
207 |     
208 |     fileprivate lazy var containerLayer: CALayer = {
209 |         $0.frame = self.bounds//.insetBy(dx: -200, dy: -200)
210 |         return $0
211 |     }(CALayer())
212 |     
213 |     @IBInspectable var speed: CGFloat = CGFloat(JSMatrixConstants.speed){
214 |         didSet{
215 |             datasource.speed = TimeInterval(speed)
216 |         }
217 |     }
218 |     @IBInspectable var newTrackComingLap: CGFloat = CGFloat(JSMatrixConstants.newTrackComingLap){
219 |         didSet{
220 |             datasource.newTrackComingLap = TimeInterval(newTrackComingLap)
221 |         }
222 |     }
223 |     @IBInspectable var trackSpacing: Int = JSMatrixConstants.tracksSpacing{
224 |         didSet{
225 |             datasource.trackSpacing = trackSpacing
226 |         }
227 |     }
228 |     
229 |     override init(frame: CGRect) {
230 |         super.init(frame: frame)
231 |         
232 |         self.backgroundColor = UIColor.black
233 |         self.layer.addSublayer(containerLayer)
234 |         self.fillTracks()
235 |     }
236 |     
237 |     required init?(coder aDecoder: NSCoder) {
238 |         super.init(coder: aDecoder)
239 |         
240 |         self.backgroundColor = UIColor.black
241 |         self.layer.addSublayer(containerLayer)
242 |         self.fillTracks()
243 |     }
244 |     
245 |     func fillTracks() {
246 |         for i in 0..<JSMatrixDataSource.trackNum{
247 |             let layer = JSMatrixTrackLayer(trackNum: i)
248 |             let characters = JSMatrixDataSource.getCharacter(length: JSMatrixDataSource.maxNum)
249 |             layer.setupCharacters(characters: characters)
250 |             containerLayer.addSublayer(layer)
251 |             let newTrack = JSMatrixTrack(layer: layer,
252 |                                          length: Int(arc4random_uniform(UInt32(JSMatrixDataSource.maxNum - JSMatrixConstants.minTrackLength))) + JSMatrixConstants.minTrackLength,
253 |                                          characters: characters)
254 |             JSMatrixDataSource.sharedDataSource.addTrack(track: newTrack)
255 |         }
256 |     }
257 |     
258 | }
259 | 


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/demo/ViewController.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.swift
 3 | //  demo
 4 | //
 5 | //  Created by Shuo Zhang on 2016/10/4.
 6 | //  Copyright © 2016年 Jon Showing. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class ViewController: UIViewController {
12 | 
13 |     override func viewDidLoad() {
14 |         super.viewDidLoad()
15 |         // Do any additional setup after loading the view, typically from a nib.
16 |     }
17 | 
18 |     override func didReceiveMemoryWarning() {
19 |         super.didReceiveMemoryWarning()
20 |         // Dispose of any resources that can be recreated.
21 |     }
22 | 
23 | 
24 | }
25 | 
26 | 


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/demo/matrixcode.ttf:
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https://raw.githubusercontent.com/zshowing/JSMatrixCodeRainView/4e811957cb81b164dc9018ec161533042ec5580c/demo/matrixcode.ttf


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/matrixcode.ttf:
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https://raw.githubusercontent.com/zshowing/JSMatrixCodeRainView/4e811957cb81b164dc9018ec161533042ec5580c/matrixcode.ttf


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