Как студии удалось издать Trivia Crack на нескольких платформах одновременно?

CEO Maximo Cavazzani got Etermax started with a series of word games, the most successful of which – Aworded Crack (formerly Angry Words) – was the Apple Store’s Best Game of 2012. They also partnered with Mattel for a mobile version of Pictionary. “After three successful games, we started thinking about doing a trivia app, and Trivia Crack was born, launching in Latin America in 2013.”

But to sustain interest in a trivia game, there’s a huge challenge generating fresh content, especially localized content. “If you live in Mexico, for example, you don’t want the same questions as people who live in Spain,” Maximo said. Brainstorming inspired a unique approach: design the game to let regional users create content and contribute their own questions and answers. Named the “Question Factory,” this feature was hugely popular and Trivia Crack became Apple Store’s most downloaded app for 60 consecutive days starting in December 2014.

Due to this kind of success, Etermax has become the fastest-growing game development company in Latin America. And Cavazzani is quick to point out the reason for their phenomenal growth: “Etermax is not a gaming company – it’s a ‘great idea’ company.”

Хотя версии Trivia Crack для iOS и Android были выпущены одновременно, Etermax полностью разделили разработку: одна команда работала, используя Xcode, а вторая — Android Studio. Etermax пришлось искать опытных сотрудников, знакомых с каждой платформой, команды никогда не работали синхронно, на разных платформах появлялись разные ошибки и, хотя готовые продукты выглядели почти одинаково, их с тем же успехом могли разрабатывать две разные компании.

Более того, такие функции как «рулетка», требующие тактильных датчиков, было сложно воплотить в жизнь в помощью аппаратно-зависимого кода. Подобные проблемы заставили Etermax отказаться от нативных инструментов и перейти на новую кроссплатформенную среду разработки.

По словам Пабло Иакопи, технического владельца Etermax, «сначала мы испытали libGDX, которая является хорошей открытой библиотекой, но все время сомневались в ее совместимости. Более того, было сложно научиться с ней работать, а еще нужно было создать свой собственный интерфейс». Также они думали об использовании React Native, что позволило бы им разрабатывать приложения поверх существующего аппаратно-зависимого кода конкретной платформы, а для добавления новых элементов использовать слой общей логики и затем экспортировать результат на различные платформы. Но это решение не позволило бы эффективно объединить два процесса разработки, к чему главным образом стремилась компания Etermax.

A number of Etermax developers had Unity experience, and Etermax was aware that Unity was an increasingly popular platform that a number of their industry peers had enthusiastically deployed. “Seeing that other companies had gone with Unity gave us a lot of confidence, and we trusted our own developers who recommended it, so we gave it a try,” said Gonzalo Huertas, Etermax’s VP of Engineering. In fact, their lead developer for Trivia Crack 2 was a Unity expert.

They developed some prototypes to test speed and performance, and the results were conclusive. Gonzalo noted, “For the developers with Android or back-end experience, moving to C# was quite simple, and for the other teams, the switch to Unity was also very straightforward. We chose Unity to streamline our processes. Instead of continuing to develop on two different code bases, we now have just one development workflow and now we can effortlessly output to many different platforms from the same code base.” In addition, Unity integrated design tasks so developers could later modify graphic elements without importing from other tools.

Importantly, switching to Unity enabled faster prototyping and smaller, more responsive teams, which fundamentally changed the company’s philosophy of game development. According to Pablo, “In the past, we’d polish a game as much as possible to produce a production candidate. Now, we make a minimum viable product (MVP) and then gather extensive metrics. That helps us create a much richer game.”

Working with Unity 2018.3, Pablo revealed that: “One very big Unity feature for us is being able to nest Prefab Assets because that simplifies building the visual interface considerably. And it’s not just for characters – we have a lot of common widgets in different scenes that we can update automatically.” By building a widget as a Prefab Asset, Etermax can make a single code change and update all the nested assets simultaneously. He added, “Unity’s ability to build a glyph atlas at runtime – its dynamic font feature – really helps us with Chinese and Japanese character sets.”

Dimensionally, Trivia Crack’s decidedly flat 2D design works. Picking objects is easier in 2D, screen locations are very accurate, and the entire UI feels clean and simple. Etermax leveraged the rich and expanding Unity Animation System, letting them animate 2D sprites, manage different clips, and use the rules/timeline to transition from one animation to another.

Despite Trivia Crack 2 being packed with most of the original game’s features and new game modes, it loads fast and feels instant. Pablo shared some of their tricks: “We started adding a lot of functionality to Trivia Crack 2 and suddenly the initial load went through the roof. That led us to investigate how Unity’s performance tools could help us. We started to measure what we were doing in that load, and basically now we distribute the game load only when and where it’s going to be used rather than indiscriminately loading everything all the time.”

The company actively shares its experiences and learnings with the Unity community. You can find articles about their Unity performance tricks and more in their Engineering team’s blog.

Etermax is planning to replicate the unified and streamlined workflow of Trivia Crack 2 into other company titles, many of which get millions of DAUs, and refactoring some of them with Unity seems to be in the plans.

Unity’s broad capabilities allow them to experiment with other game genres and diversify their catalog; some of these experiments are 3D games that feature their well-known Trivia Crack mascot.

And perhaps foreshadowing exciting things coming from this innovative studio, a recent internal Etermax hackathon integrated Unity and Vuforia capabilities to create augmented-reality (AR) promotional collateral.

And now that Etermax has streamlined and accelerated its development processes with Unity, that leaves just one non-trivial question for this trivia-loving studio: What new Etermax game are we all going to get hooked on next?