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> Unreal Engine API Reference > Runtime > Engine > GameFramework > AGameNetworkManager

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AGameNetworkManager

Handles game-specific networking management (cheat detection, bandwidth management, etc.).

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Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

AActor

AInfo

AGameNetworkManager

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/GameFramework/GameNetworkManager.h
Include	#include "GameFramework/GameNetworkManager.h"

Syntax

class AGameNetworkManager : public AInfo

Remarks

Handles game-specific networking management (cheat detection, bandwidth management, etc.).

Variables

	Name	Description
int32	AdjustedNetSpeed	Current adjusted bandwidth per player, based on total and dynamic bandwidth
float	BadPacketLossThreshold	If packet loss goes over this value, we have bad packet loss. Value is between 0 and 1.
int32	BadPingThreshold	If average ping is higher than this threshold in ms, determine the server is either delaying packets or has bad upstream.
uint32: 1	bHasStandbyCheatTriggered	Used to determine whether we've already caught a cheat or not
uint32: 1	bIsStandbyCheckingEnabled	Used to determine if checking for standby cheats should occur
bool	bMovementTimeDiscrepancyDetection	Whether movement time discrepancy (speed hack) detection is enabled.
bool	bMovementTimeDiscrepancyForceCorrectionsDuringResolution	Whether client moves should be force corrected during time discrepancy resolution, useful for projects that have lenient move error tolerance/ClientAuthorativePosition enabled.
bool	bMovementTimeDiscrepancyResolution	Whether movement time discrepancy resolution is enabled (when detected, make client movement "pay back" excessive time discrepancies)
bool	bUseDistanceBasedRelevancy	If true, actor network relevancy is constrained by whether they are within their NetCullDistanceSquared from the client's view point.
float	CLIENTADJUSTUPDATECOST	CLIENTADJUSTUPDATECOST is the bandwidth cost in bytes of sending a client adjustment update.
bool	ClientAuthorativePosition	If client update is within MAXPOSITIONERRORSQUARED of what the server expects then the client is authoritative on it's final position
float	ClientErrorUpdateRateLimit	Minimum delay between the server sending error corrections to a client, in seconds.
float	ClientNetCamUpdateDeltaTime	Minimum delay between calls to ServerUpdateCamera, in seconds.
float	ClientNetCamUpdatePositionLimit	Camera position change limit, when exceeded allows an immediate ServerUpdateCamera call.
float	ClientNetSendMoveDeltaTime	ClientNetSendMoveDeltaTime is the default minimum time delta of CharacterMovement client moves to the server.
float	ClientNetSendMoveDeltaTimeStationary	ClientNetSendMoveDeltaTimeStationary is used when players are determined to not be moving or changing their view.
float	ClientNetSendMoveDeltaTimeThrottled	ClientNetSendMoveDeltaTimeThrottled is used in place of ClientNetSendMoveDeltaTime when player count is high or net speed is low.
int32	ClientNetSendMoveThrottleAtNetSpeed	When player net speed (CurrentNetSpeed, based on ConfiguredInternetSpeed or ConfiguredLanSpeed) is less than or equal to this amount, ClientNetSendMoveDeltaTimeThrottled is used instead of ClientNetSendMoveDeltaTime.
int32	ClientNetSendMoveThrottleOverPlayerCount	When player count is greater than this amount, ClientNetSendMoveDeltaTimeThrottled is used instead of ClientNetSendMoveDeltaTime.
float	JoinInProgressStandbyWaitTime	The amount of time to wait before checking a connection for standby issues
float	LastNetSpeedUpdateTime	Last time AdjustedNetSpeed was updated for server (by client entering or leaving)
float	MaxClientForcedUpdateDuration	MaxClientForcedUpdateDuration is the maximum time duration over which the server will force updates, after MAXCLIENTUPDATEINTERVAL is initially exceeded.
float	MaxClientSmoothingDeltaTime	MaxClientSmoothingDeltaTime is the maximum delta time between server updates that clients are allowed to smooth between for position interpolation.
float	MAXCLIENTUPDATEINTERVAL	MAXCLIENTUPDATEINTERVAL is the maximum time between movement updates from the client before the server forces an update.
int32	MaxDynamicBandwidth	Maximum bandwidth set per connection after splitting TotalNetBandwidth
float	MaxMoveDeltaTime	MaxMoveDeltaTime is the default maximum time delta of CharacterMovement ServerMoves.
float	MAXNEARZEROVELOCITYSQUARED	MAXNEARZEROVELOCITYSQUARED is the square of the max velocity that is considered zero (not corrected) in net play
float	MAXPOSITIONERRORSQUARED	MAXPOSITIONERRORSQUARED is the square of the max position error that is accepted (not corrected) in net play
int32	MinDynamicBandwidth	Minimum bandwidth set per connection after splitting TotalNetBandwidth
float	MovementTimeDiscrepancyDriftAllowance	Accepted drift in clocks between client and server as a percent per second allowed.
float	MovementTimeDiscrepancyMaxTimeMargin	Maximum time client can be ahead before triggering movement time discrepancy detection/resolution (if enabled).
float	MovementTimeDiscrepancyMinTimeMargin	Maximum time client can be behind.
float	MovementTimeDiscrepancyResolutionRate	During time discrepancy resolution, we "pay back" the time discrepancy at this rate for future moves until total error is zero.
float	MoveRepSize	Average size of replicated move packet (ServerMove() packet size) from player
float	PercentForBadPing	The percentage of clients with bad ping before triggering the standby code
float	PercentMissingForRxStandby	The percentage of clients missing RX data before triggering the standby code
float	PercentMissingForTxStandby	The percentage of clients missing TX data before triggering the standby code
float	ServerForcedUpdateHitchCooldown	Ignore forced client movement updates when server hitch was detected within this amount of time in the past.
float	ServerForcedUpdateHitchThreshold	Ignore forced client movement updates when server hitches for longer than this duration.
float	SeverePacketLossThreshold	If the packet loss goes over this threshold, we have severe packet loss. Value is between 0 and 1
int32	SeverePingThreshold	Similar to BadPingThreshold, but used to track exceptionally bad pings.
float	StandbyRxCheatTime	The amount of time without packets before triggering the cheat code
float	StandbyTxCheatTime	The amount of time without packets before triggering the cheat code
FTimerHandle	TimerHandle_UpdateNetSpeedsTimer	Handle for efficient management of UpdateNetSpeeds timer
int32	TotalNetBandwidth	Total available bandwidth (in bytes/sec) for listen server, split dynamically across net connections

Constructors

	Name	Description
	AGameNetworkManager ( const FObjectInitializer& ObjectIn... )

Functions

	Name	Description
int32	CalculatedNetSpeed()	New per/client bandwidth given number of players in the game
void	EnableStandbyCheatDetection ( bool bIsEnabled )	Standby cheat detection.
bool	ExceedsAllowablePositionError ( FVector LocDiff )
bool	IsInLowBandwidthMode()	Returns true if we should be in low bandwidth mode
bool	NetworkVelocityNearZero ( FVector InVelocity )
void	StandbyCheatDetected ( EStandbyType StandbyType )	Notifies the game code that a standby cheat was detected
void	UpdateNetSpeeds ( bool bIsLanMatch )	Update network speeds for listen servers based on number of connected players.
void	UpdateNetSpeedsTimer()	Timer which calls UpdateNetSpeeds() once a second.
bool	WithinUpdateDelayBounds ( APlayerController* PC, float LastUpdateTime )

Overridden from AActor

		Name	Description
	void	PostInitializeComponents()	Allow actors to initialize themselves on the C++ side after all of their components have been initialized, only called during gameplay

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