Book Image

Corona SDK Mobile Game Development: Beginner's Guide

Book Image

Corona SDK Mobile Game Development: Beginner's Guide

Overview of this book

Corona SDK is the fastest and easiest way to create commercially successful cross platform mobile games. Just ask Robert Nay, a 14 year old who created Bubble Ball - downloaded three million times, famously knocking Angry Birds off the top spot. You don't need to be a programming veteran to create games using Corona. Corona SDK is the number one tool for creating fun, simple blockbuster games. Assuming no experience at all with programming or game development you will learn the basic foundations of Lua and Corona right through to creating several monetized games deployable to Android and Apple stores. You will begin with a crash course in Lua, the programming language underpinning the Corona SDK tool. After downloading and installing Corona and writing some simple code you will dive straight into game development. You will start by creating a simple breakout game with controls optimized for mobile. You will build on this by creating two more games incorporating different features such as falling physics. The book ends with a tutorial on social network integration, implementing in app purchase and most important of all monetizing and shipping your game to the Android and App stores.
Table of Contents (18 chapters)
Corona SDK Mobile Game Development Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface

Time for action – saving and loading the high score


When the Game Over screen displays, we're going to save and load the values of our final score and highest score.

  1. Open up your main.lua file that we created for Egg Drop. We'll continue using the same file and add in more code with the new alterations to the game.

  2. Add in two new variables, local highScoreText and local highScore where all the other initialised variables are located near the top of the code.

    local highScoreText
    local highScore
  3. Introduce the saveValue() function after the pre-loaded sound files.

      local saveValue = function( strFilename, strValue )
        -- will save specified value to specified file
        local theFile = strFilename
        local theValue = strValue
        
        local path = system.pathForFile( theFile, system.DocumentsDirectory )
        
        -- io.open opens a file at path. returns nil if no file found
        local file = io.open( path, "w+" )
        if file then
           -- write game score to the text file
           file:write( theValue...