Core

Function	Description
`GetGatewayComponent`	Returns the UGatewayComponent attached to a given APlayerState. Returns `nullptr` if the PlayerState is null or has no GatewayComponent attached.
`GetGatewayComponentForPlayerController`	Convenience accessor. Resolves the APlayerState from the given APlayerController and returns its `UGatewayComponent`. Returns `nullptr` if the controller or its PlayerState is null.
`GetGatewayComponentForCharacter`	Convenience accessor. Resolves the APlayerController and then the APlayerState from the given ACharacter and returns its `UGatewayComponent`. Returns `nullptr` if any step in the chain is null.
`GetAllGatewayComponents`	Iterates all PlayerStates registered in the current GameState and returns every `UGatewayComponent` found. Returns an empty array if the world or GameState is unavailable.
`SwitchSlot`	Sends a slot-switch request to all players resolved by the given FGatewayTarget, triggering a save-slot switch by SlotName on each target. Should only be called with server authority.
`GetGatewaySettings`	Returns the singleton UGatewaySettings CDO. Use this to access global configuration such as StatDefinitions, ChallengeDefinitions, and RewardDefinitions asset references.

Stats

Function	Description
Access
`GetAllStatIDs`	Loads every UGatewayStatData asset referenced in Settings and returns a deduplicated array of FGameplayTag IDs. Useful for enumerating all known stats without needing a component instance.
`GetAllStatDefinitions`	Returns a `TMap<FGameplayTag, FGatewayStatDefinition>` built from all loaded StatData assets. Duplicate IDs are skipped with the first occurrence winning. A `checkf` fires in development if any definition has an invalid tag.
`GetStat`	Returns the FGatewayStat matching the given StatID tag from the provided UGatewayComponent. Returns a default-constructed `FGatewayStat` if the component is null or the stat is not found.
`GetStats`	Returns the complete `TArray<FGatewayStat>` from the given component's stats provider. Logs a warning and returns an empty array if the component or provider is null.
`GetStatsWithTag`	Returns all stats from the given component whose definition carries the specified Tag. Useful for filtering by category — for example, retrieving all stats tagged Gateway.Category.Combat at once.
`GetStatValue`	Returns the raw `float` value of the stat matching StatID on the given component. Convenience shorthand for GetStat when you only need the numeric value and don't require the full FGatewayStat struct.
`GetStatExtension`	Returns the first extension on the given FGatewayStat matching ExtensionClass, cast to the requested type. Uses `DeterminesOutputType` so Blueprint receives the correctly typed object pin.
`GetStatExtensions`	Returns all extensions on the given FGatewayStat that match ExtensionClass. Useful when a stat carries multiple instances of the same extension type.
Mutate
`UpdateStat`	Applies a stat update to all players resolved by the FGatewayTarget, using the stat's configured Update Policy. The Value is processed according to that policy (e.g. accumulated, compared, counted) rather than set directly. See the Update Policies section for details.
`UpdateStats`	Applies a batch of FGatewayStatUpdate entries to all players resolved by the target in one call. Prefer this over calling UpdateStat in a loop when updating multiple stats at the same time.
`UpdateStatsWithTag`	Applies Value to every stat carrying the given Tag across all players resolved by the target. Each matching stat processes the value through its own Update Policy independently. Useful for updating a whole group of related stats — for example, all damage stats — in one call.
`SetStat`	Directly sets the stat value for all players resolved by the target, bypassing the Update Policy. Use this when you need an exact override rather than a policy-driven mutation — e.g. restoring a stat from an external save source.
`ResetStats`	Resets a specific set of stats identified by StatIDs back to their default values for all players resolved by the target. Useful for selectively clearing a known set without touching others.
`ResetAllStats`	Resets every stat back to its default for all players resolved by the target. Typically used when starting a completely fresh session.
`ResetStatsWithTag`	Resets all stats carrying the given Tag back to their defaults for all players resolved by the target. A common use case is resetting all stats tagged Gateway.Stats.Persistence.Match at the start of a new match without touching lifetime stats.

Challenges

Function	Description
Access
`GetAllChallengeIDs`	Loads every UGatewayChallengeData asset referenced in Settings and returns a deduplicated array of FGameplayTag IDs.
`GetAllChallengeDefinitions`	Returns a `TMap<FGameplayTag, FGatewayChallengeDefinition>` from all loaded ChallengeData assets. Duplicate IDs are skipped. A `checkf` fires in development if any definition has an invalid tag.
`GetChallenge`	Returns the FGatewayChallenge matching the given ChallengeID tag from the provided component. Returns a default-constructed value if the component is null or the challenge is not found.
`GetChallenges`	Returns the complete `TArray<FGatewayChallenge>` from the given component's challenges provider.
`GetChallengesWithTag`	Returns all challenges from the given component whose definition carries the specified Tag. Useful for querying a category of challenges — for example, retrieving all challenges tagged Gateway.Category.Daily at once.
`GetCompletedChallenges`	Returns only the challenges marked complete on the given component. Saves callers from filtering the full challenge array manually.
`GetProceduralChallenges`	Returns all currently registered procedural challenges on the given component — i.e. those injected at runtime rather than loaded from a UGatewayChallengeData asset.
`GetTotalChallengeCount`	Returns the total number of challenges registered on the given component as an `int32`. Useful for progress UI without pulling the full array.
`GetCompletedChallengeCount`	Returns the number of completed challenges on the given component as an `int32`. Pair with GetTotalChallengeCount to derive a completion percentage.
`IsChallengeComplete`	Returns `true` if the challenge identified by ChallengeID is currently marked complete on the given component. Delegates to the challenges provider's completion check.
Conditions
`IsConditionSatisfied`	Evaluates a single FGatewayChallengeCondition against the given component's current stat values. Returns `true` if the condition's ComparisonPolicy is satisfied. Useful for checking individual conditions outside of the normal challenge evaluation flow.
`GetConditionCompletionPercent`	Returns a `float` in the `0.0–1.0` range representing how far toward completion the given condition is, based on the component's current stat value. Useful for driving progress bars on individual condition steps.
`IsConditionBinary`	Returns `true` if the given condition has no meaningful intermediate progress — i.e. it is either fully satisfied or not. Use this to decide whether to show a progress bar or a simple check mark for a condition in UI.
Extensions
`GetChallengeExtension`	Returns the first extension on the given FGatewayChallenge matching ExtensionClass, cast to the requested type. Uses `DeterminesOutputType` so Blueprint receives the correctly typed object pin.
`GetChallengeExtensions`	Returns all extensions on the given FGatewayChallenge that match ExtensionClass.
Mutate
`CompleteChallenges`	Marks the challenges identified by ChallengeIDs as complete for all players resolved by the target. Typically triggers any downstream reward or event logic defined in the challenges provider.
`CompleteAllChallenges`	Marks every challenge as complete for all players resolved by the target. Primarily a development and cheat utility for testing reward pipelines without manually fulfilling each challenge.
`CompleteChallengesWithTag`	Marks all challenges carrying the given Tag as complete for all players resolved by the target.
`ResetChallenges`	Resets the challenges identified by ChallengeIDs back to their initial state for all players resolved by the target — clearing completion status and any tracked progress.
`ResetAllChallenges`	Resets every challenge for all players resolved by the target. Useful for wiping challenge progress at the start of a new game or season.
`ResetChallengesWithTag`	Resets all challenges carrying the given Tag for all players resolved by the target.
Procedural
`RegisterProceduralChallenge`	Registers a runtime-constructed FGatewayChallenge on all players resolved by the target. Use this to inject challenges that are not defined in a UGatewayChallengeData asset — for example, encounter-specific or roguelike run challenges generated at runtime.
`UnregisterProceduralChallenge`	Removes the procedural challenge identified by ChallengeID from all players resolved by the target.
`UnregisterAllProceduralChallenges`	Removes all procedural challenges from all players resolved by the target. Does not affect challenges loaded from data assets.
`UnregisterAllProceduralChallengesWithTag`	Removes all procedural challenges carrying the given Tag from all players resolved by the target. Useful for clearing a specific group of procedural challenges — for example, all challenges belonging to a completed encounter or dungeon floor.

Rewards

Function	Description
Access
`GetAllRewardIDs`	Loads every UGatewayRewardData asset referenced in Settings and returns a deduplicated array of FGameplayTag IDs.
`GetAllRewardDefinitions`	Returns a `TMap<FGameplayTag, FGatewayRewardDefinition>` from all loaded RewardData assets. Duplicate IDs are skipped. A `checkf` fires in development if any definition has an invalid tag.
`GetReward`	Returns the FGatewayReward matching the given RewardID tag from the provided component. Returns a default-constructed value if the component is null or the reward is not found.
`GetAllRewards`	Returns the complete `TArray<FGatewayReward>` from the given component's rewards provider.
`GetRewardsWithTag`	Returns all rewards from the given component whose definition carries the specified Tag. Useful for querying a category of rewards without filtering the full array manually.
`GetGrantedRewards`	Returns only the rewards that have been granted to the given component's player. Saves callers from filtering the full reward array manually.
`GetTotalRewardCount`	Returns the total number of rewards registered on the given component as an `int32`. Useful for progress UI without pulling the full array.
`GetGrantedRewardCount`	Returns the number of granted rewards on the given component as an `int32`. Pair with GetTotalRewardCount to derive a completion percentage.
`IsRewardGranted`	Returns `true` if the reward identified by RewardID has been granted on the given component.
Extensions
`GetRewardExtension`	Returns the first extension on the given FGatewayReward matching ExtensionClass, cast to the requested type. Uses `DeterminesOutputType` so Blueprint receives the correctly typed object pin.
`GetRewardExtensions`	Returns all extensions on the given FGatewayReward that match ExtensionClass.
Mutate
`GrantRewards`	Grants the rewards identified by RewardIDs to all players resolved by the target. The rewards provider handles marking them as granted and firing any associated events.
`GrantAllRewards`	Grants every defined reward to all players resolved by the target. Like CompleteAllChallenges, this is primarily a development utility for quickly validating reward display and unlock logic.
`GrantRewardsWithTag`	Grants all rewards carrying the given Tag to all players resolved by the target.
`ResetRewards`	Revokes and resets the rewards identified by RewardIDs for all players resolved by the target — clearing their granted state. Useful for time-limited rewards or re-earnable content.
`ResetAllRewards`	Revokes and resets every reward for all players resolved by the target.
`ResetRewardsWithTag`	Revokes and resets all rewards carrying the given Tag for all players resolved by the target.

Gateway Library

Core

Stats

Challenges

Rewards