Book Image

GameMaker Cookbook

Book Image

GameMaker Cookbook

Overview of this book

GameMaker: Studio started off as a tool capable of creating simple games using a drag-and-drop interface. Since then, it has grown to become a powerful instrument to make release-ready games for PC, Mac, mobile devices, and even current-gen consoles. GameMaker is designed to allow its users to develop games without having to learn any of the complex programming languages such as C++ or Java. It also allows redistribution across multiple platforms. This book teaches you to harness GameMaker: Studio’s full potential and take your game development to new heights. It begins by covering the basics and lays a solid foundation for advanced GameMaker concepts. Moving on, it covers topics such as controls, physics, and advanced movement, employing a strategic approach to the learning curve. The book concludes by providing insights into complex concepts such as the GUI, menus, save system, lighting, particles, and VFX. By the end of the book, you will be able to design games using GameMaker: Studio and implement the same techniques in other games you intend to design.
Table of Contents (17 chapters)
GameMaker Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Encrypting and decrypting save data


Everybody has secrets, right? Well, sometimes secrets can be helpful, especially when you want to prevent anyone playing your game from messing with save and setting files. If you're reading this, then you have a healthy interest in creating games and programming. If you're interested in programming, or even just figuring out how programs work, you have likely browse through a game or application's files and open one in Notepad. Was it all nonsensical, gibberish, and random characters? I bet it was. This is because the file was encrypted. Developers need to encrypt the code in a program's files to make it unreadable in order to prevent a user from altering the code in any way and thus changing how the program works. In terms of games, imagine if, instead of playing the game as intended, a player changed some save files manually in order to unlock every item and achievement you worked so hard to code. Where's the fun in that? Well, you're in luck because...