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| Original file line number | Diff line number | Diff line change |
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| // | ||
| // AnimatableSpriteLayer.swift | ||
| // ThanosSnap | ||
| // | ||
| // Inspired by https://www.calayer.com/core-animation/2018/01/05/creating-a-simple-animatable-sprite-layer.html | ||
| // | ||
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| import UIKit | ||
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| class AnimatableSpriteLayer: CALayer { | ||
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| private var animationValues = [CGFloat]() | ||
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| convenience init(spriteSheetImage: UIImage, spriteFrameSize: CGSize ) { | ||
| self.init() | ||
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| masksToBounds = true | ||
| contentsGravity = CALayerContentsGravity.left | ||
| contents = spriteSheetImage.cgImage | ||
| bounds.size = spriteFrameSize | ||
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| let frameCount = Int(spriteSheetImage.size.width / spriteFrameSize.width) | ||
| for frameIndex in 0..<frameCount { | ||
| animationValues.append(CGFloat(frameIndex) / CGFloat(frameCount)) | ||
| } | ||
| } | ||
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| func play() { | ||
| let spriteKeyframeAnimation = CAKeyframeAnimation(keyPath: "contentsRect.origin.x") | ||
| spriteKeyframeAnimation.values = animationValues | ||
| spriteKeyframeAnimation.duration = 2.0 | ||
| spriteKeyframeAnimation.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.linear) | ||
| spriteKeyframeAnimation.calculationMode = CAAnimationCalculationMode.discrete | ||
| add(spriteKeyframeAnimation, forKey: nil) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| // | ||
| // DustEffectView.swift | ||
| // ThanosSnap | ||
| // | ||
| // Created by potato04 on 2019/5/1. | ||
| // Copyright © 2019 potato04. All rights reserved. | ||
| // | ||
|
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| import UIKit | ||
| import AVFoundation | ||
|
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| protocol DustEffectViewDelegate: class { | ||
| func DustEffectDidCompleted() | ||
| } | ||
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| class DustEffectView: UIView, CAAnimationDelegate { | ||
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| weak var delegate: DustEffectViewDelegate? | ||
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| var soundPlayer: AVAudioPlayer? | ||
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| var image: UIImage? { | ||
| didSet { | ||
| if let image = image { | ||
| let images = createDustImages(image: image) | ||
| let imagesCount = images.count | ||
| for (i, image) in images.enumerated() { | ||
| // create layer | ||
| let layer = CALayer() | ||
| layer.frame = bounds | ||
| layer.contents = image.cgImage | ||
| self.layer.addSublayer(layer) | ||
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| let centerX = Double(layer.position.x) | ||
| let centerY = Double(layer.position.y) | ||
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| // attach animation | ||
| let radian1 = Double.pi / 12 * Double.random(in: -0.5..<0.5) | ||
| let radian2 = Double.pi / 12 * Double.random(in: -0.5..<0.5) | ||
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| let random = Double.pi * 2 * Double.random(in: -0.5..<0.5) | ||
| let transX = 30 * cos(random) | ||
| let transY = 15 * sin(random) | ||
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| //x' = x*cos(a) - y*sin(a) | ||
| //y' = y*cos(a) + x*sin(a) | ||
| let realTransX = transX * cos(radian1) - transY * sin(radian1) | ||
| let realTransY = transY * cos(radian1) + transX * sin(radian1) | ||
| let realEndPoint = CGPoint(x: centerX + realTransX, y: centerY + realTransY) | ||
| let controlPoint = CGPoint(x: centerX + transX, y: centerY + transY) | ||
|
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| let movePath = UIBezierPath() | ||
| movePath.move(to: layer.position) | ||
| movePath.addQuadCurve(to: realEndPoint, controlPoint: controlPoint) | ||
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| let moveAnimation = CAKeyframeAnimation(keyPath: "position") | ||
| moveAnimation.path = movePath.cgPath | ||
| moveAnimation.calculationMode = .paced | ||
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| let rotateAnimation = CABasicAnimation(keyPath: "transform.rotation") | ||
| rotateAnimation.toValue = radian1 + radian2 | ||
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| let fadeOutAnimation = CABasicAnimation(keyPath: "opacity") | ||
| fadeOutAnimation.toValue = 0.0 | ||
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| let animationGroup = CAAnimationGroup() | ||
| animationGroup.animations = [moveAnimation, rotateAnimation, fadeOutAnimation] | ||
| animationGroup.duration = 1 | ||
| animationGroup.beginTime = CACurrentMediaTime() + 1.35 * Double(i) / Double(imagesCount) | ||
| animationGroup.isRemovedOnCompletion = false | ||
| animationGroup.fillMode = .forwards | ||
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| if i == images.count - 1 { | ||
| animationGroup.delegate = self | ||
| } | ||
| layer.add(animationGroup, forKey: nil) | ||
| } | ||
|
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| soundPlayer = try? AVAudioPlayer(contentsOf: URL(fileURLWithPath: Bundle.main.path(forResource: "thanos_dust_\(Int.random(in: 1...6))", ofType: "mp3")!)) | ||
| if soundPlayer != nil { | ||
| soundPlayer!.prepareToPlay() | ||
| soundPlayer!.play() | ||
| } | ||
| } | ||
|
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| } | ||
| } | ||
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| override init(frame: CGRect) { | ||
| super.init(frame: frame) | ||
| } | ||
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| required init?(coder aDecoder: NSCoder) { | ||
| super.init(coder: aDecoder) | ||
| } | ||
|
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| private func removeAllSublayers() { | ||
| if let sublayers = layer.sublayers { | ||
| for layer in sublayers { | ||
| layer.removeFromSuperlayer() | ||
| } | ||
| } | ||
| } | ||
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| func animationDidStop(_ anim: CAAnimation, finished flag: Bool) { | ||
| if flag { | ||
| removeAllSublayers() | ||
| delegate?.DustEffectDidCompleted() | ||
| } | ||
| } | ||
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| private func createDustImages(image: UIImage) -> [UIImage] { | ||
| var result = [UIImage]() | ||
| guard let inputCGImage = image.cgImage else { | ||
| return result | ||
| } | ||
| let colorSpace = CGColorSpaceCreateDeviceRGB() | ||
| let width = inputCGImage.width | ||
| let height = inputCGImage.height | ||
| let bytesPerPixel = 4 | ||
| let bitsPerComponent = 8 | ||
| let bytesPerRow = bytesPerPixel * width | ||
| let bitmapInfo = CGImageAlphaInfo.premultipliedLast.rawValue | CGBitmapInfo.byteOrder32Little.rawValue | ||
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| guard let context = CGContext(data: nil, width: width, height: height, bitsPerComponent: bitsPerComponent, bytesPerRow: bytesPerRow, space: colorSpace, bitmapInfo: bitmapInfo) else { | ||
| return result | ||
| } | ||
| context.draw(inputCGImage, in: CGRect(x: 0, y: 0, width: width, height: height)) | ||
| guard let buffer = context.data else { | ||
| return result | ||
| } | ||
|
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| let pixelBuffer = buffer.bindMemory(to: UInt32.self, capacity: width * height) | ||
|
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| //尝试提高这个沙化图片数量，效果也会越好 | ||
| let imagesCount = 32 | ||
| var framePixels = Array(repeating: Array(repeating: UInt32(0), count: width * height), count: imagesCount) | ||
|
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| for column in 0..<width { | ||
| for row in 0..<height { | ||
| let offset = row * width + column | ||
| for _ in 0...1 { | ||
| let temp = Double.random(in: 0..<1) + 2 * (Double(column)/Double(width)) | ||
| let index = Int(floor(Double(imagesCount) * ( temp / 3))) | ||
| framePixels[index][offset] = pixelBuffer[offset] | ||
| } | ||
| } | ||
| } | ||
| for frame in framePixels { | ||
| let data = UnsafeMutablePointer(mutating: frame) | ||
| guard let context = CGContext(data: data, width: width, height: height, bitsPerComponent: bitsPerComponent, bytesPerRow: bytesPerRow, space: colorSpace, bitmapInfo: bitmapInfo) else { | ||
| continue | ||
| } | ||
| result.append(UIImage(cgImage: context.makeImage()!, scale: image.scale, orientation: image.imageOrientation)) | ||
| } | ||
| return result | ||
| } | ||
| } |
22 changes: 22 additions & 0 deletions
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ThanosSnap/ThanosSnap/Supporting Files/Assets.xcassets/baidu.imageset/Contents.json
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,22 @@ | ||
| { | ||
| "images" : [ | ||
| { | ||
| "idiom" : "universal", | ||
| "scale" : "1x" | ||
| }, | ||
| { | ||
| "idiom" : "universal", | ||
| "filename" : "baidu@2x.png", | ||
| "scale" : "2x" | ||
| }, | ||
| { | ||
| "idiom" : "universal", | ||
| "filename" : "baidu@3x.png", | ||
| "scale" : "3x" | ||
| } | ||
| ], | ||
| "info" : { | ||
| "version" : 1, | ||
| "author" : "xcode" | ||
| } | ||
| } |
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ThanosSnap/ThanosSnap/Supporting Files/Assets.xcassets/baidu.imageset/baidu@2x.png
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22 changes: 22 additions & 0 deletions
22
ThanosSnap/ThanosSnap/Supporting Files/Assets.xcassets/google.imageset/Contents.json
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| { | ||
| "images" : [ | ||
| { | ||
| "idiom" : "universal", | ||
| "scale" : "1x" | ||
| }, | ||
| { | ||
| "idiom" : "universal", | ||
| "filename" : "google@2x.png", | ||
| "scale" : "2x" | ||
| }, | ||
| { | ||
| "idiom" : "universal", | ||
| "filename" : "google@3x.png", | ||
| "scale" : "3x" | ||
| } | ||
| ], | ||
| "info" : { | ||
| "version" : 1, | ||
| "author" : "xcode" | ||
| } | ||
| } |
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...sSnap/ThanosSnap/Supporting Files/Assets.xcassets/google.imageset/google@2x.png
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...sSnap/ThanosSnap/Supporting Files/Assets.xcassets/google.imageset/google@3x.png
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