Book Image

Developing Mobile Games with Moai SDK

By : Francisco Tufró
Book Image

Developing Mobile Games with Moai SDK

By: Francisco Tufró

Overview of this book

<p>Moai SDK is a fast, minimalist, open-source Lua mobile framework for pro game developers. Moai is built around Lua, a common programming language for games, and offers a single open-source platform for both the front-end elements seen by consumers and the back-end infrastructure.<br /><br />Developing Mobile Games with Moai SDK will guide you through the creation of two game prototypes in a step-by-step way, giving you the basic tools you need in order to create your own games.<br /><br />Developing Mobile Games with Moai SDK introduces the basic concepts behind game development, and takes you through the development of a tile-based memotest, and a platform game prototype as well. You'll end up with a good codebase to start writing your own games.</p> <p>You will learn some tricks that come from real life experience while creating a small framework that will allow you to display images, play sounds, grab input, and so on. You'll also learn how to implement physics using Box2D bindings, and everything in Lua, without having to use any compilations. After doing this, we'll take a look at how to deploy your game to iOS and run it on an iPhone.</p> <p><br />With this book, you should be ready to go and create your own game, release it to the Apple Store, and have enough tools to dig deeper into Moai SDK.</p>
Table of Contents (20 chapters)
Developing Mobile Games with Moai SDK
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
7
Concentration Gameplay
Index

Going multi-platform


The first thing we need to think about is how we are going to deal with different resolutions in our project. You could do a lot of fancy stuff in this regard, such as changing the UI given different sizes, or loading HD images if the resolution is higher than or equal to 1024 x 768 (or whatever you choose!), and so on. In this example we're going to keep it simple; we will just stretch everything so that it fits on the screen.

Open the Concentration project and change the following lines:

SCREEN_RESOLUTION_X = 2 * WORLD_RESOLUTION_X
SCREEN_RESOLUTION_Y = 2 * WORLD_RESOLUTION_Y

To the following:

SCREEN_RESOLUTION_X = MOAIEnvironment.horizontalResolution
SCREEN_RESOLUTION_Y = MOAIEnvironment.verticalResolution

If you run the project now, it should show the stretched version of the game, but it still does not react to touches.

In order to fix this, edit game.lua and modify processInput to use InputManager:getTouch instead of InputManager:position.

Where it says x, y = InputManager...