Eryn Wells
b95dffd5a8
Quickly build a Swift version of a ScreenSaverView and throw some Metal at it. Having trouble getting the RendererDelegate protocol satisfied.
97 lines
2.6 KiB
Swift
97 lines
2.6 KiB
Swift
//
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// MetaballsSaverView.swift
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// Metaballs
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//
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// Created by Eryn Wells on 8/16/17.
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// Copyright © 2017 Eryn Wells. All rights reserved.
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//
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import Foundation
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import MetaballsKit
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import MetalKit
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import ScreenSaver
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class MetaballsSaverView: ScreenSaverView, RendererDelegate {
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private static func defaultParameters() -> Parameters {
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var p = Parameters()
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let defaults = UserDefaults.standard
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let style = defaults.colorStyle ?? .gradient2Horizontal
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p.colorStyle = style
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let color0 = defaults.color0 ?? Float4(0.50, 0.79, 1, 1)
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p.color0 = color0
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let color1 = defaults.color1 ?? Float4(0.88, 0.50, 1, 1)
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p.color1 = color1
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return p
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}
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public var metalView: MTKView
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public var field: Field {
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didSet {
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field.size = Size(size: metalView.drawableSize)
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}
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}
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internal var renderer: RendererDelegate
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override init?(frame: NSRect, isPreview: Bool) {
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let params = MetaballsSaverView.defaultParameters()
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field = Field(parameters: params)
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metalView = MTKView()
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metalView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(metalView)
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NSLayoutConstraint.activate([
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metalView.topAnchor.constraint(equalTo: topAnchor),
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metalView.leftAnchor.constraint(equalTo: leftAnchor),
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metalView.bottomAnchor.constraint(equalTo: bottomAnchor),
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metalView.rightAnchor.constraint(equalTo: rightAnchor),
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])
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do {
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renderer = try Renderer(delegate: self)
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} catch let e {
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fatalError("\(e)")
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}
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super.init(frame: frame, isPreview: isPreview)
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}
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required init?(coder: NSCoder) {
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let params = MetaballsSaverView.defaultParameters()
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field = Field(parameters: params)
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metalView = MTKView()
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metalView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(metalView)
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NSLayoutConstraint.activate([
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metalView.topAnchor.constraint(equalTo: topAnchor),
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metalView.leftAnchor.constraint(equalTo: leftAnchor),
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metalView.bottomAnchor.constraint(equalTo: bottomAnchor),
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metalView.rightAnchor.constraint(equalTo: rightAnchor),
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])
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do {
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renderer = try Renderer(delegate: self)
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} catch let e {
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fatalError("\(e)")
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}
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super.init(coder: coder)
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}
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override func animateOneFrame() {
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}
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// MARK: - RendererDelegate
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public var renderSize: Size {
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get {
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return field.size
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}
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set {
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field.size = newValue
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}
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}
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}
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