FReplicatedPlayerArrayItem

Overview

This struct is used within the FReplicatedPlayerArray to store individual player states. It includes a weak pointer to an APlayerState and provides comparison operators for equality checks.

Properties

Type	Name	Access	Description
TWeakObjectPtr	PlayerState	Public	Weak pointer to the associated player state.

Functions

Return Type	Signature	Description
bool	operator==(const FReplicatedPlayerArrayItem& Other) const	Compares this item with another `FReplicatedPlayerArrayItem` for equality based on their `PlayerState`.
bool	operator==(const APlayerState* Test) const	Checks if the weak pointer to `PlayerState` is equal to a given `APlayerState*`.

FReplicatedPlayerArray

Overview

This struct inherits from FFastArraySerializer and manages an array of FReplicatedPlayerArrayItem, which in turn hold weak pointers to APlayerState. It provides a method for delta serialization to optimize network traffic during state changes.

Properties

Type	Name	Access	Description
TArray	Items	Public	Array of items, each containing a weak pointer to an `APlayerState`.

Functions

Return Type	Signature	Description
bool	NetDeltaSerialize(FNetDeltaSerializeInfo & DeltaParms)	Serializes the array for network transmission using delta encoding.

ALimenGameStateBase

Overview

This class inherits from AGameStateBase and manages a list of players through replicated properties. It provides functions to add/remove players and notifies when the player list changes.

Properties

Type	Name	Access	Description
FPlayerListChanged	OnPlayerListChanged	Public	Multicast delegate that is called when the player list changes.
FReplicatedPlayerArray	ReplicatedPlayerList	Private	Replicated array of player states for network synchronization.
TArray<APlayerState*>	PlayerList	Private	Local copy of the player list, updated from `ReplicatedPlayerList`.

Functions

Return Type	Signature	Description
void	AddPlayerToPlayerList(APlayerState* NewPlayer)	Adds a new player to the player list if they are not already present.
void	RemovePlayerFromPlayerList(APlayerState* Player)	Removes a player from the player list if they exist.
const TArray<APlayerState*>&	GetPlayerList() const	Returns the current list of players.
void	GetLifetimeReplicatedProps(TArray & OutLifetimeProps) const	Registers properties for replication, including `ReplicatedPlayerList`.
void	PlayersListChanged()	Updates the local `PlayerList` from `ReplicatedPlayerList` and broadcasts the change via `OnPlayerListChanged`.
void	OnRep_LimenPlayerList()	Handles the replication of `ReplicatedPlayerList`, updating the local `PlayerList` accordingly.

Usage & Implementation Notes

The class uses a replicated array to manage player states, ensuring that all players in the game can see the current list of active players.
The OnPlayerListChanged delegate is used to notify other parts of the game when the player list changes, allowing for synchronization and updates across different systems or clients.
The ReplicatedPlayerArrayItem struct uses weak pointers to avoid holding strong references to player states, which could prevent garbage collection.

22 May 2026