## Tìngäzìk: a Retrospective – ep. 1 “Roman”

From this episode, I’ll try to go through each level of the game, starting from the first one. Most of these posts would be relatively short, in a fixed format, and I might run out of introduction text to write from the next episode. Please bear with me for the next 30+ articles, and I hope you enjoy it.

## Tìngäzìk: a Retrospective – ep. 0 Game Structure

Tìngäzìk is a puzzle game I designed in 2020, heavily inspired by Project NANO after I solved it with my teammates. When the first team solved the puzzle, and sent me their write-up on the journey tackling it, I felt like I should also write a retrospective series of blogs reflecting on the game design, and sharing some details behind scene.

The game is now in answer mode and open sourced, but you can also choose to give it a try if you want, without visiting the hint pages. Otherwise, this will be the first (or 0th) article of the series. Enjoy!

## RYDL: Our Attempt

RYDL is a rather “classic” file-based set of puzzles composed by COL, who was from the team first solved Tìngäzìk. COL sent this puzzle to us as a response to Tìngäzìk. (Thank you, COL!)

The puzzle is a zip archive containing 6 PNG image files with the first one being an instruction page for the puzzle. The puzzle set consists of 6 main puzzles and a meta puzzle. Puzzles are not related to each other except the metapuzzle depends on the answer to all the others ones. Answers to all 7 puzzles are English words of 6 letters.

In this blog, we’ll talk about how we – Eana, Ben Pig Chu, and an anonymous contributor – solved this puzzle, and some interesting details we learnt from COL after solving it.

## Use GraphQL subscription to show progress of time-consuming operations

GraphQL is feature-rich query language designed to fit majority of needs of generic online applications. The 3 main types of operations in GraphQL are query, mutation and subscription. While queries and mutations are send in HTTP requests, subscriptions are running on WebSocket, which enables it to receive updates in real time. In this article, I would like to talk about using the subscription to report real-time results and/or progresses to time-consuming operations.

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## Measure per-letter dimension of text in JavaScript

TL;DR: Create a Range, set proper start and end points up to the text node with proper offset, then use Range.getBoundingClientRect() to get the dimensions.

As a part of the Lyricova Jukebox, we wanted to support inline karaoke swipe animation. With the time tags in the data, it is easy to figure out the time when the animation must reach a certain character. Then we need to figure out a way measure per character dimension for the animation to work.

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## How LyricsX keeps track of progress of media players

LyricsX is an open source software for macOS to download and display lyrics of current playing track on Music (previously iTunes), Spotify, Audirvana, Vox, Swinsian, or the Now Playing indicator in the OS. It gets time-tagged lyrics files from local storage or internet, and then display the lyrics in sync with the player.

As a crucial component of the development of Lyricova Jukebox, I have researched multiple implementations of real time lyrics display programs, and I found the mechanism behind LyricsX particularly interesting. Here in this article, I’d share with you how LyricsX tracking the player progress in a unique and resource-saving way.

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