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  • Book Overview & Buying Kivy Blueprints
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Kivy Blueprints

Kivy Blueprints

By : Vasilkov
3.7 (10)
Buy this Book
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Kivy Blueprints

Kivy Blueprints

3.7 (10)
By: Vasilkov
Buy this Book

Overview of this book

This book is intended for programmers who are comfortable with the Python language and who want to build desktop and mobile applications with rich GUI in Python with minimal hassle. Knowledge of Kivy is not strictly required—every aspect of the framework is described when it's first used.
Table of Contents (12 chapters)
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Preface
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Preface
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Write once, run anywhere
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What this book covers
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Setting up the working environment
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Hello, Kivy
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Building a Clock App
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1. Building a Clock App
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The starting point
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Modern UI
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Making the clock tick
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Layout basics
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Styling buttons
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Counting time
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Stopwatch controls
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Summary
2
2. Building a Paint App
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2. Building a Paint App
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Setting the stage
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Fine-tuning the looks
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Drawing touches
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Clearing the screen
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Connecting the dots
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The color palette
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Setting the line thickness
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Summary
3
3. Sound Recorder for Android
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3. Sound Recorder for Android
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Writing platform-dependent code
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Metro UI
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Testing on Android
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Using the native API
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Summary
4
4. Kivy Networking
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4. Kivy Networking
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Writing the chat server
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Screen manager
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Bringing the app online
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Enhancements and eye candy
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Summary
5
5. Making a Remote Desktop App
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5. Making a Remote Desktop App
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The server
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JavaScript client
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Kivy Remote Desktop app
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Summary
6
6. Making the 2048 Game
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6. Making the 2048 Game
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About the game
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Creating the 2048 board
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Making tiles
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Implementing the game logic
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Where to go from here
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Summary
7
7. Writing a Flappy Bird Clone
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7. Writing a Flappy Bird Clone
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Project overview
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Creating an animated background
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Making pipes
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Introducing Kivy Bird
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Collision detection
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Producing sound effects
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Summary
8
8. Introducing Shaders
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8. Introducing Shaders
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Unscientific introduction to OpenGL
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Using custom shaders in Kivy
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Making the Starfield app
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Summary
9
9. Making a Shoot-Em-Up Game
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9. Making a Shoot-Em-Up Game
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Limitations of the project
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Texture atlases at a glance
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Designing a reusable particle system
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Writing the game
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Finishing touches
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Summary
10
A. The Python Ecosystem
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A. The Python Ecosystem
11
Index
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Index

Designing a reusable particle system

In this section, we're going to write a particle system that will be later used to create pretty much everything in the game—spaceships, bullets, and so on. This is the generic approach used in situations where you have many similar objects on the screen with very little logic for movement and interaction.

This topic will capitalize on the previous chapter's code. In fact, the starfield screensaver from the previous chapter as a whole is a fine example of a particle system; however, it lacks the necessary configurability and cannot be easily repurposed. We're going to change that without significantly altering the GLSL and related code.

Note

It's worth mentioning that the chosen approach—rendering textured quads for each particle—isn't the most optimal in terms of low-level rendering. On the plus side, it's very straightforward, easy to reason about, and compatible with any implementation of OpenGL that supports GLSL at all.

If you choose to learn OpenGL...

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Tech Concepts
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Programming languages
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Kivy Blueprints
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