Posts in "c-sharp" - Alan Edwardes

About the Author

Alan is a hobbyist Game Developer and a Software Engineer with 7 years of industry experience.

Posts in 2021

Jenkins Library for Unreal Engine 4 on 13th of Feb
Three Approaches to Readable Materials in First Person Games on 7th of Feb
Cheap Synthetic Monitoring with AWS Lambda on 24th of Jan

Posts in 2020

Generating Mipmaps for Render Targets in UE4 on 24th of Dec
Routing DNS over HTTPS Using Raspberry Pi on 6th of Oct
Tips for Building Games with Unreal Engine 4 on 3rd of Oct
Serving Localised Assets from S3 Using Lambda@Edge on 17th of May

Posts in 2019

Automating macOS Notarization for UE4 on 23rd of Nov

Posts in 2018

ISO Country Code to Unicode Flag in C# and JavaScript on 22nd of Jul
Serverless Git LFS for Game Development on 6th of Jan
Adding Custom Map Checks in UE4 on 3rd of Jan

Posts in 2017

Building and Deploying a React App Using AWS Lambda on 24th of Dec
Git HTTP Username and Password in Environment Variables on 22nd of Dec
Capturing and Uploading Screenshots in UE4 on 20th of Dec
Using Capsule Shadows on Large Objects in UE4 on 8th of Dec

Category "c-sharp"

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ISO Country Code to Unicode Flag in C# and JavaScript

Posted July 22nd, 2018, last updated July 23rd, 2020 in c-sharp

The Unicode 6.0 spec defines Regional Indicator symbols, which includes a set of flags. Here are the founders of NATO, if your system supports the flag characters (Windows 10 doesn't yet):

🇧🇪 🇨🇦 🇩🇰 🇫🇷 🇮🇸 🇮🇹 🇱🇺 🇳🇱 🇳🇴 🇵🇹 🇬🇧 🇺🇸

To create a flag, take the country ISO code (for example GB), and offset it to the flags Unicode block.

C#

public static string IsoCountryCodeToFlagEmoji(this string country)
{
    return string.Concat(country.ToUpper().Select(x => char.ConvertFromUtf32(x + 0x1F1A5)));
}

string gb = "gb".IsoCountryCodeToFlagEmoji(); // 🇬🇧
string fr = "fr".IsoCountryCodeToFlagEmoji(); // 🇫🇷

JavaScript

function isoCountryCodeToFlagEmoji(country)
{
   return String.fromCodePoint(...[...country.toUpperCase()].map(c => c.charCodeAt() + 0x1F1A5));
}

let gb = isoCountryCodeToFlagEmoji("gb"); // 🇬🇧
let fr = isoCountryCodeToFlagEmoji("fr"); // 🇫🇷