Project Snow Fight

Another internal case-study project of Pyco Flash team to research multiplayer game with Red5. This is a 2D top-view real-time shooting game whose gameplay is similar to CS2D – you control your character moving round with WASD keys and aim and shoot with your mouse. The game showcases real-time synchronization among clients in a precision and fast-pace environment. The team have learnt a lot from the book ActionScript for Multiplayer Games and Virtual Worlds and apply what we learnt successfully to this game.
I designed and proposed the game concept and detailed requirements. I also joint to develop the character control and foundation of client-server synchronization.
My roles: system designer, technical supporter
Tech notes:

• Pyco Flash Framework – based on PureMVC
• Red5
• TweenMax
• Realtime multiplayer synchronization

Click here to try the game. (Because this is a multi-player game, make sure you invite your friends to join).
 

Case Study Isometric Multi-player Virtual World

This is my team’s case study to demonstrate our capability to build a MMORPG (Massively Multiplayer Online Role Playing Game). The site features 2.5D isometric scene and realtime multiplayer virtual world utilizing SmartFox server.

My role: key researcher, team leader

Tech notes:

• Flash Player 9 / Actionscript 3
• AS3IsoLib Isometric engine
• Red5 server (in first phase)
• SmartFox multiplayer server (Java backend)

Red5 Data Mapping

When sending data to Red5 handlers, it is important to know the counter-part data types used in the server’s Java code.

There’s is one article mentioning about this at http://jira.red5.org/confluence/display/codecs/Data+Type+Mappings

However, for an unknown reason, the page is not accessible any more. I have to produce a test and observe the conversion of data as following:

From Flash to Red5 (valid to Red5 0.8 / 0.9)

ActionScript 3	Red5
Boolean	java.lang.Boolean
String	java.lang.String
uint (< 2147483647) int (-2147483648 to below 2147483647) Number (integer value within int range)	java.lang.Integer
uint (>= 2147483647) Number (integer value out of int range)	java.lang.Long
Number (fraction value)	java.lang.Double
Date	java.util.Date
Array	java.util.ArrayList
Object / Custom Object	org.red5.io.utils.ObjectMap
XML, XMLDocument	org.apache.xerces.dom.DeferredDocumentImpl (this class seems not to be in Red5’s lib folder)
ByteArray	org.red5.io.amf3.ByteArray
Special Values:
NaN	NaN

Notes:

• Negative integer value is limited at –2147483648 even if the variable is declared as Number. If you try to send a value less than this number, it will be rounded up to –2147483648.
• If one of the params in the remote call is null or undefined, the handler will not be executed.