编辑“︁NetworkDesign”︁（章节）

==== 常规消息 ====

The [https://sourceforge.net/p/arianne/marauroa/ci/master/tree/src/marauroa/common/net/message/MessageS2CPerception.java S2CPerception] message is a message sent from the server to the client to notify the client about changes to the objects that exist near it. The message is based on the idea explained in the [[RolePlayingDesign#Perceptions|Delta Perception]] document.

The message is composed of:
* A type that can be DELTA or TOTAL
* A string indicating the name of the zone the perception is related to.
* A time stamp value that will be just one unit bigger than the previous perception
* A List of RPObject that contains added object
* A List of RPObject that contains modified added object attributes
* A List of RPObject that contains modified deleted object attributes
* A List of RPObject that contains deleted object
* A RPObject that describes the things the rest of players don't see about OUR own object. 

Read the Delta perception algorithm to understand what it is for.


The client sends [https://sourceforge.net/p/arianne/marauroa/ci/master/tree/src/marauroa/common/net/message/MessageC2SKeepAlive.java C2SKeepAlive] messages regularly. If there has been no keep alive message for some time, the server will timeout the client.