Kivy Blueprints -- Table of Contents -- Kivy Blueprints -- Credits -- About the Author -- About the Reviewers -- www.PacktPub.com -- Support files, eBooks, discount offers, and more -- Why subscribe? -- Free access for Packt account holders -- Preface -- Write once, run anywhere -- What this book covers -- Setting up the working environment -- A note on Python -- Installing and running Kivy -- Note on coding -- Hello, Kivy -- Code -- Layout -- Who this book is for -- Conventions -- Reader feedback -- Customer support -- Downloading the example code -- Downloading the color images of this book -- Errata -- Piracy -- Questions -- 1. Building a Clock App -- The starting point -- Modern UI -- Design inspiration -- Loading custom fonts -- Formatting text -- Changing the background color -- Making the clock tick -- Updating the time on the screen -- Binding widgets using properties -- Layout basics -- Finalizing the layout -- Reducing repetition -- Named classes -- Styling buttons -- 9-patch scaling -- Using 9-patch images -- Counting time -- Formatting the time for stopwatch -- Computing values -- Putting a stopwatch in place -- Stopwatch controls -- Summary -- 2. Building a Paint App -- Setting the stage -- Fine-tuning the looks -- Visual appearance -- Window size -- Mouse cursor -- Multitouch emulation -- Drawing touches -- A very short introduction to the canvas -- Displaying touches on the screen -- Clearing the screen -- Passing events -- Clearing the canvas -- Connecting the dots -- The color palette -- Subclassing the buttons -- Taking away the ability to deselect -- Overriding the standard behavior -- Coloring buttons -- A new kind of button -- Defining the palette -- Setting the line thickness -- Changing the line width -- Summary -- 3. Sound Recorder for Android -- Writing platform-dependent code -- Introducing Pyjnius -- Emulating Android.

Metro UI -- The buttons -- The grid structure -- Visual attributes -- Scalable vector icons -- Icon fonts -- Rationale for using icon fonts -- Using the icon font in Kivy -- Testing on Android -- Using the native API -- Loading Java classes -- Looking up the storage path -- Reading logs from the device -- Recording sound -- Major caveat - permissions -- Playing sound -- Deleting files -- Summary -- 4. Kivy Networking -- Writing the chat server -- The protocol definition -- The server source code -- The principle of operation -- Testing the server -- Screen manager -- Customizing the animation -- Login screen layout -- Chatroom screen layout -- Overscroll modes -- Bringing the app online -- Building a simple Python client -- Kivy integration with Twisted -- ChatClient and ChatClientFactory -- UI integration -- Application logic of the client -- Cross-application interoperability -- Enhancements and eye candy -- Escaping the special syntax -- What's next -- Summary -- 5. Making a Remote Desktop App -- The server -- The Flask web server -- Advanced server functionality - taking screenshots -- Emulating clicks -- JavaScript client -- Endless loop of screenshots -- Passing clicks to host -- Kivy Remote Desktop app -- The login form -- The remote desktop screen -- Loop of screenshots in Kivy -- Sending clicks -- What's next -- Summary -- 6. Making the 2048 Game -- About the game -- Gameplay concepts and overview -- Randomness, or lack thereof -- The 2048 project outline -- What makes 2048 a good choice of project? -- Simplicity as a feature -- Creating the 2048 board -- Going through cells -- Rendering empty cells -- Board data structure -- Variable naming -- Calling reset() -- Testing passability -- Making tiles -- Tile initialization -- Resizing tiles -- Implementing the game logic -- Moving tiles -- Controlling the iteration sequence.

Implementing the move() method -- Binding touch controls -- Combining tiles -- Adding more tiles -- Synchronizing turns -- Game over -- The winning condition -- The loss condition -- Where to go from here -- Summary -- 7. Writing a Flappy Bird Clone -- Project overview -- Creating an animated background -- Loading tileable textures -- The Background widget -- Animating the background -- Making pipes -- An overview of the pipe properties -- Setting texture coordinates -- Implementing pipes -- Spawning pipes -- Moving and recycling pipes -- Introducing Kivy Bird -- Revised application flow -- Accepting user input -- Learning to fly straight down -- Remaining in flight -- Rotating the bird -- Collision detection -- Game over -- Producing sound effects -- Kivy sound playback -- Adding sound to the Kivy Bird game -- Summary -- 8. Introducing Shaders -- Unscientific introduction to OpenGL -- Concepts and parallelism -- Performance gains, or lack thereof -- Improving performance -- Taking a closer look at GLSL -- Using custom shaders in Kivy -- Building the geometry -- Illustrating the Indices -- Writing GLSL -- Storage classes and types -- Basic shaders -- Procedural coloring -- Colorful vertices -- Texture mapping -- Making the Starfield app -- Application structure -- Data structures and initializers -- Advancing the scene -- Writing a corresponding GLSL -- Summary -- 9. Making a Shoot-Em-Up Game -- Limitations of the project -- Texture atlases at a glance -- Creating an atlas -- Atlas structure -- Using Kivy atlases in an easy way -- Ad hoc usage of atlases with GLSL -- Data structure for UV mapping -- Writing an atlas loader -- Rendering sprites from atlas -- Designing a reusable particle system -- Class hierarchy -- The PSWidget renderer class -- The Particle class -- Writing the game -- Implementing stars -- Making a spaceship.

Creating a trail of fire -- Making bullets -- Implementing enemies -- Collision detection -- Finishing touches -- Summary -- A. The Python Ecosystem -- Index.