Book Image

Flash Multiplayer Virtual Worlds

Book Image

Flash Multiplayer Virtual Worlds

Overview of this book

Flash virtual worlds are some of the most exciting—and profitable—online business being built today. Using Flash, developers can build interactive environments where users can interact with the virtual world and one another, compete, and have fun. Creating a playful environment on an electronic network presents unique challenges as you combine a fun, upbeat frontend with some serious and complex server logic. This handy book assists you in building amazing virtual worlds in no time by implementing ActionScripts in a Flash IDE. With this book in hand, you will build virtual worlds that have avatars walking around and interacting with non playing characters, completing challenging quests, and allowing users to link with real-world friends. The fun begins with first exploring existing virtual world games such as Club Penguin, Mole, Dofus, and World of Warcraft. We will then design our virtual environment. Then we will create avatars and move the avatars in the virtual world. We will add some triggers to add amusement and life to the virtual world. We will allow the avatars to interact with other players and create a buddy list for each user. Then we will integrate buildings and other environment to the virtual world. We will also let the players interact with non-player characters to complete some tasks. Finally, we move on to add interesting quests to the virtual world, which need to be accomplished by the player to gear up to the next level of the game. This example-rich, hands-on guide sequentially develops a multiplayer virtual world—the platform, the environment, quests, avatars, non-playing characters, and interaction between them.
Table of Contents (18 chapters)
Flash Multiplayer Virtual Worlds
Credits
About the Author
About the Reviewers
Preface

Capture a screenshot and share to a Facebook album


Letting players capture screenshot of the Flash virtual world can further increase the exposure of the virtual world.

Facebook requires every application to grant permission from users in order to upload photos. We had granted the permission publish_stream from users in the news feed example. The publish_stream also includes the permission of uploading photos and videos so that we do not need to grant extra permission again in this example.

The Flash player environment limits the file access. We cannot save the encoded JPEG directly into the filesystem from the Flash player in the browser. Instead, we will directly post the encoded JPG binary data to Facebook by the UploadPhoto command. We format our name to the current time so that the filenames will not be conflicted with each other.

private function uploadScreenshot(e:MouseEvent) {
var jpgSource:BitmapData = new BitmapData (stage.width, stage.height);
jpgSource.draw(stage);
var jpgEncoder...