Package sfs3.client.entities

Class MMORoom

java.lang.Object

sfs3.client.entities.SFSRoom

sfs3.client.entities.MMORoom

All Implemented Interfaces:

Room

public class MMORoom
extends SFSRoom

The MMORoom object represents a specialized type of Room entity on the client.

The MMORoom is ideal for huge virtual worlds and MMO games because it works with proximity lists instead of "regular" users lists. This allows thousands of users to interact with each other based on their Area of Interest (AoI). The AoI represents a range around the user that is affected by server and user events, outside which no other events are received.

The size of the AoI is set at Room creation time and it is the same for all users who joined it. Supposing that the MMORoom hosts a 3D virtual world, setting an AoI of (x=100, y=100, z=40) for the Room tells the server to transmit updates and broadcast events to and from those users that fall within the AoI range around the current user; this means the area within +/- 100 units on the X axis, +/- 100 units on the Y axis and +/- 40 units on the Z axis.

As the user moves around in the virtual environment, he can update his position in the corresponding MMORoom and thus continuously receive events about other users (and items - see below) entering and leaving his AoI. The player will be able to update his position via the SetUserPositionRequest request and receive updates on his current proximity list by means of the SFSEvent.PROXIMITY_LIST_UPDATE event.

Finally, MMORooms can also host any number of "MMOItems" which represent dynamic non-player objects that users can interact with. They are handled by the MMORoom using the same rules of visibility described before.

See Also:

• CreateRoomRequest
• MMORoomSettings
• SetUserVariablesRequest
• SFSEvent.PROXIMITY_LIST_UPDATE
• MMOItem

Field Summary

Fields inherited from class sfs3.client.entities.SFSRoom

DEFAULT_GROUP_ID, groupId, id, isAudioStreamingAllowed, isGame, isHidden, isJoined, isManaged, isPasswordProtected, maxSpectators, maxUsers, name, roomManager, specCount, userCount, userManager, variables

Constructor Summary

Constructors

Constructor	Description
MMORoom(int id, String name)	Creates a new MMORoom instance.
MMORoom(int id, String name, String groupId)	Creates a new MMORoom instance.

Method Summary

Modifier and Type	Method	Description
void	addMMOItem(IMMOItem item)	API internal usage only
Vec3D	getDefaultAOI()	Returns the default Area of Interest (AoI) of this MMORoom.
Vec3D	getHigherMapLimit()	Returns the higher coordinates limit of the virtual environment represented by the MMORoom along the X,Y,Z axes.
Vec3D	getLowerMapLimit()	Returns the lower coordinates limit of the virtual environment represented by the MMORoom along the X,Y,Z axes.
IMMOItem	getMMOItem(int id)	Retrieves an MMOItem object from its id property.
List<IMMOItem>	getMMOItems()	Retrieves all MMOItem object in the MMORoom that fall within the current user's Area of Interest.
void	removeItem(int id)	API internal usage only
void	setDefaultAOI(Vec3D defaultAOI)	API internal usage only
void	setHigherMapLimit(Vec3D higherMapLimit)	API internal usage only
void	setLowerMapLimit(Vec3D lowerMapLimit)	API internal usage only

Methods inherited from class sfs3.client.entities.SFSRoom

addUser, containsUser, containsVariable, equals, fromSFSArray, getCapacity, getGroupId, getId, getMaxSpectators, getMaxUsers, getName, getPlayerList, getRoomManager, getSpectatorCount, getSpectatorList, getUserById, getUserByName, getUserCount, getUserList, getVariable, getVariables, hashCode, isAudioStreamingAllowed, isGame, isHidden, isJoined, isManaged, isPasswordProtected, removeUser, setAudioStreamingAllowed, setGame, setHidden, setJoined, setManaged, setMaxSpectators, setMaxUsers, setName, setPasswordProtected, setRoomManager, setSpectatorCount, setUserCount, setVariable, setVariables, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

MMORoom

public MMORoom(int id,
 String name)

Creates a new MMORoom instance.

NOTE: developers never instantiate a SFSRoom manually: this is done by the SmartFoxServer 3 API internally.

Parameters:

id - The Room id.

name - The Room name.

MMORoom

public MMORoom(int id,
 String name,
 String groupId)

Creates a new MMORoom instance.

NOTE: developers never instantiate a SFSRoom manually: this is done by the SmartFoxServer 3 API internally.

Parameters:

id - The Room id.

name - The Room name.

groupId - The id of the Group to which the Room belongs.

Method Details

getDefaultAOI

public Vec3D getDefaultAOI()

Returns the default Area of Interest (AoI) of this MMORoom.

Returns:

the default Area of Interest (AoI) of this MMORoom.

See Also:

• MMORoomSettings.setDefaultAOI(Vec3D)

getLowerMapLimit

public Vec3D getLowerMapLimit()

Returns the lower coordinates limit of the virtual environment represented by the MMORoom along the X,Y,Z axes. If null is returned, no limits were set at Room creation time.

Returns:

the lower map coordinates limit

See Also:

• MMORoomSettings.setMapLimits(sfs3.client.requests.mmo.MapLimits)

getHigherMapLimit

public Vec3D getHigherMapLimit()

Returns the higher coordinates limit of the virtual environment represented by the MMORoom along the X,Y,Z axes. If null is returned, no limits were set at Room creation time.

Returns:

the higher map coordinates limit

See Also:

• MMORoomSettings.setMapLimits(sfs3.client.requests.mmo.MapLimits)

setDefaultAOI

public void setDefaultAOI(Vec3D defaultAOI)

API internal usage only

setLowerMapLimit

public void setLowerMapLimit(Vec3D lowerMapLimit)

API internal usage only

setHigherMapLimit

public void setHigherMapLimit(Vec3D higherMapLimit)

API internal usage only

getMMOItem

public IMMOItem getMMOItem(int id)

Retrieves an MMOItem object from its id property. The item is available to the current user if it falls within his Area of Interest only.

Parameters:

id - The id of the item to be retrieved.

Returns:

An MMOItem object, or null if the item with the passed id is not in proximity of the current user.

See Also:

• MMOItem

getMMOItems

public List<IMMOItem> getMMOItems()

Retrieves all MMOItem object in the MMORoom that fall within the current user's Area of Interest.

Returns:

A list of MMOItem objects, or an empty list if no item is in proximity of the current user.

See Also:

• MMOItem

addMMOItem

public void addMMOItem(IMMOItem item)

API internal usage only

removeItem

public void removeItem(int id)

API internal usage only