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Kotlin Programming By Example

You're reading from   Kotlin Programming By Example Build real-world Android and web applications the Kotlin way

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Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788474542
Length 500 pages
Edition 1st Edition
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Author (1):
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Iyanu Adelekan Iyanu Adelekan
Author Profile Icon Iyanu Adelekan
Iyanu Adelekan
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Table of Contents (12) Chapters Close

Preface 1. The Fundamentals FREE CHAPTER 2. Building an Android Application – Tetris 3. Implementing Tetris Logic and Functionality 4. Designing and Implementing the Messenger Backend with Spring Boot 2.0 5. Building the Messenger Android App – Part I 6. Building the Messenger Android App – Part II 7. Storing Information in a Database 8. Securing and Deploying an Android App 9. Creating the Place Reviewer Backend with Spring 10. Implementing the Place Reviewer Frontend 11. Other Books You May Enjoy

Understanding Tetris

Before attempting to develop the Tetris game as an Android application, we need to understand the game, its rules, and its constraints.

Tetris is a matching puzzle video game that makes use of tiles. The name Tetris is derived from the words tetra – the Greek numerical prefix for four – and tennis. The tiles in Tetris combine to make up tetrominoes which are geometric shapes composed of four squares connected orthogonally:

Tetris tetrominoes

In Tetris, a random sequence of tetrominoes fall down upon a playing field. These tetrominoes can be manipulated by the player. A number of motions can be performed on each tetromino piece. Pieces can be moved to the left, to the right, and rotated. In addition, the speed of descent of each piece can be sped up. The objective of the game is to create an uninterrupted horizontal line of ten cells with the...

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