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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| import AppKit | ||
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| class DisplayLink { | ||
| let timer: CVDisplayLink | ||
| let source: DispatchSourceUserDataAdd | ||
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| var callback : Optional<() -> ()> = nil | ||
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| var running : Bool { CVDisplayLinkIsRunning(timer) } | ||
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| init?(onQueue queue: DispatchQueue = DispatchQueue.main) { | ||
| source = DispatchSource.makeUserDataAddSource(queue: queue) | ||
| var timerRef : CVDisplayLink? = nil | ||
| var successLink = CVDisplayLinkCreateWithActiveCGDisplays(&timerRef) | ||
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| if let timer = timerRef { | ||
| successLink = CVDisplayLinkSetOutputCallback(timer, { | ||
| (timer : CVDisplayLink, currentTime : UnsafePointer<CVTimeStamp>, outputTime : UnsafePointer<CVTimeStamp>, _ : CVOptionFlags, _ : UnsafeMutablePointer<CVOptionFlags>, sourceUnsafeRaw : UnsafeMutableRawPointer?) -> CVReturn in | ||
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| if let sourceUnsafeRaw = sourceUnsafeRaw { | ||
| let sourceUnmanaged = Unmanaged<DispatchSourceUserDataAdd>.fromOpaque(sourceUnsafeRaw) | ||
| sourceUnmanaged.takeUnretainedValue().add(data: 1) | ||
| } | ||
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| return kCVReturnSuccess | ||
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| }, Unmanaged.passUnretained(source).toOpaque()) | ||
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| guard successLink == kCVReturnSuccess else { | ||
| NSLog("Failed to create timer with active display") | ||
| return nil | ||
| } | ||
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| successLink = CVDisplayLinkSetCurrentCGDisplay(timer, CGMainDisplayID()) | ||
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| guard successLink == kCVReturnSuccess else { | ||
| NSLog("Failed to connect to display") | ||
| return nil | ||
| } | ||
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| self.timer = timer | ||
| } else { | ||
| NSLog("Failed to create timer with active display") | ||
| return nil | ||
| } | ||
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| source.setEventHandler { | ||
| [weak self] in self?.callback?() | ||
| } | ||
| } | ||
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| func start() { | ||
| guard !running else { return } | ||
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| CVDisplayLinkStart(timer) | ||
| source.resume() | ||
| } | ||
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| func cancel() { | ||
| guard running else { return } | ||
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| CVDisplayLinkStop(timer) | ||
| source.cancel() | ||
| } | ||
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| deinit { | ||
| if running { | ||
| cancel() | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,9 +1,11 @@ | ||
| import Cocoa | ||
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| struct Settings { | ||
| static let screenSize = NSScreen.main?.frame.size ?? .zero | ||
| private static let screenSize = NSScreen.main?.frame.size ?? .zero | ||
| static let snowflakeSizeRange: ClosedRange<CGFloat> = 2...10 | ||
| static let maxSnowflakes = Int((screenSize.height * screenSize.width) * 0.0001) | ||
| static let snowflakeSpeedRange: ClosedRange<CGFloat> = 1...5 | ||
| static let windStrength: CGFloat = 0.5 | ||
| static let maxSnowflakes = 1000 | ||
| static let snowflakeSpeedRange: ClosedRange<CGFloat> = 1...3 | ||
| static let windStrength: CGFloat = 0.3 | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| #include <metal_stdlib> | ||
| using namespace metal; | ||
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| struct Snowflake { | ||
| float2 position; // Позиция снежинки | ||
| float size; // Размер снежинки | ||
| }; | ||
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| kernel void snowflakeVertexShader(const device Snowflake* snowflakes [[ buffer(0) ]], | ||
| uint id [[ thread_position_in_grid ]], | ||
| device float4* outPosition [[ buffer(1) ]]) { | ||
| if (id < 100) { // Измените 100 на количество снежинок | ||
| float2 pos = snowflakes[id].position; | ||
| outPosition[id] = float4(pos.x, pos.y, 0.0, 1.0); | ||
| } | ||
| } | ||
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| fragment float4 snowflakeFragmentShader(float4 inPosition [[ position ]]) { | ||
| return float4(1.0, 1.0, 1.0, 1.0); // Белый цвет снежинки | ||
| } |