codelynx

//
//	Data+Hexadecimal.swift
//
//	The MIT License (MIT)
//
//	Copyright (c) 2023 Electricwoods LLC, Kaz Yoshikawa.
//
//	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

codelynx

import UIKit

extension UIImage {
	convenience init(color: UIColor) {
		let renderer = UIGraphicsImageRenderer(size: CGSize(width: 1, height: 1))
		let image = renderer.image { context in
			context.cgContext.setFillColor(UIColor.blue.cgColor)
			context.cgContext.fill(CGRect(x: 0, y: 0, width: 1, height: 1))
		}
		guard let cgImage = image.cgImage else { fatalError() }

codelynx

//
//	ZError.swift
//	ZKit
//
//	Created by Kaz Yoshikawa on 7/18/22.
//
//	Usage:
//	General usage for throwing Error in Swift language.
//
//	Example:

codelynx

//
//	Array+RunLength.swift
//	ZKit
//
//	The MIT License (MIT)
//
//	Copyright (c) 2020 Electricwoods LLC, Kaz Yoshikawa.
//
//	Permission is hereby granted, free of charge, to any person obtaining a copy
//	of this software and associated documentation files (the "Software"), to deal

codelynx

import Foundation

public extension Array {
	func slice(count: Int) -> [some Collection] {
		let n = self.count / count	// quotient
		let i = n * count 			// index
		let r = self.count % count	// remainder
		let slices = (0..<n).map { $0 * count }.map { self[$0 ..< $0 + count] }
		return (r > 0) ? slices + [self[i..<i + r]] : slices
	}

codelynx

//	Note:
//	When you found that you cannot cast/convert between CGFloat and String, you may add following piece of code
//	to make your life a bit easier.
//
//		if let number = CGFloat("1234.5") {
//		}
//		let string = String(CGFloat.pi)
//

extension CGFloat: LosslessStringConvertible {

codelynx

/*
	This sample code shows the problem of archive and unarchive abstruct objects. Please see `TODO` keyword
	and make this Contents class to save and load shape objects.

	CASE: All target objects are based on NSObject with NSCoding to archive and unarchive Shape desendant class objects

	file: archive-unarchive-1.swift
	https://gist.github.com/codelynx/428b27b3cfd58b8c7382346f1a4bc415
	
*/

codelynx

/*
	This sample code shows the problem of archive and unarchive abstruct objects. Please see `TODO` keyword
	and make this Contents class to save and load shape objects.

	CASE: All target objects are based on NSObject with NSCoding to archive and unarchive Shape desendant class objects

	file: archive-unarchive-1.swift
	https://gist.github.com/codelynx/428b27b3cfd58b8c7382346f1a4bc415
	
*/

codelynx

/*
	This sample code shows the problem of archive and unarchive abstruct objects. Please see `TODO` keyword
	and make this Contents class to save and load shape objects.
*/

import Foundation
import CoreGraphics

protocol Shape {
}

codelynx

func casteljau<T: FloatingPoint>(_ v0: T, _ v1: T, _ t: T) -> T {
	return v0 + (v1 - v0) * t
}

func casteljau<T: FloatingPoint>(_ v0: T, _ v1: T, _ v2: T, _ t: T) -> T {
	let q0 = v0 + (v1 - v0) * t
	let q1 = v1 + (v2 - v1) * t
	return q0 + (q1 - q0) * t
}