The digest of interesting materials for mobile developer # 83 (December 8-14)

In the new digest an interesting article about the creation of World of Tanks Blitz, first look at the Apple Watch SDK, the release of Android Studio 1.0, some news about Google Cardboard, navigation in rooms with iBeacon and many other useful materials.

Creating World of Tanks Blitz based on your own engine DAVA

This story began more than three years ago. Our small company DAVA became part of Wargaming, and we began to think about what projects to do next. To remind you how mobile it was three years ago, I’ll say that at that time there was neither Clash Of Clans, Puzzle & Dragons, nor many projects that are very well-known today. Mid-core then just started. The market was several times smaller than today.
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First look at the Apple Watch SDK

The Apple Watch SDK, announced in June and just released, caused a lot of controversy and questions. The first version has limited functionality, and version 2.0 is just around the corner, you need to wait a few more months. Impressions of the new SDK developers have developed different. Some are disappointed by the large number of restrictions, others, on the contrary, are impressed by the fact of the release. There is also a “stratum” of those who adopted the new product with sufficient restraint. But in any case, the vast majority of developers are happy to release new interesting fun.

Pebble: working with static graphics on the example of creating a 7-segment watchface

All applications for Pebble watches are divided into two categories of watchapp - just applications, and watchface - applications "watches", which, as the name suggests, are the face of the device. The difference between “faces” is the lack of response to hardkey buttons, since “UP” and “DOWN” are used to cycle through the installed watchfaces. But, probably, due to the low resolution of the screen 144x168 px, it is quite difficult to find a watchfly that fits perfectly into the design of the watch, which at the same time performs its main function - counting time.

Navigation in rooms with iBeacon and INS

Imagine that you have been given the task of implementing indoor navigation. Accordingly, GPS / Glonass and similar satellite navigation systems are not available to you. What to do? In this article, we will examine in detail the solutions to such problems in the theoretical part, and in the practical, we will implement an indoor tracker for hardware to work with iBeacon beacons via Bluetooth BLE on NodeJS based on the latest Intel Edison platform, consider the use of trilateration and a filter Kalman, CylonJS library for working with sensors on NodeJS.