FWorldConditionContextData

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API > API/Plugins > API/Plugins/WorldConditions

The World condition context and context data are structs that are created when we want to interact with world conditions.

When using FWorldConditionQuery, we only need to deal with context data. The data is defined in

// Create context data for our Fantastic use case. const UFantasticConditionSchema* DefaultSchema = GetDefault(); FWorldConditionContextData ConditionContextData(*DefaultSchema); ConditionContextData.SetContextData(DefaultSchema->GetActorRef(), FantasticActor);

if (Query.IsTrue(ConditionContextData)) { ... }

When managing separate state memory, world condition context is used to bind everything together:

FWorldConditionContext Context(*this, Definition.Preconditions, Runtime.PreconditionState, ConditionContextData); if (!Context.IsTrue()) { ... }

Note: FWorldConditionContextData and FWorldConditionContext should not be stored for longer durations.

The expected availability of the world context data is as follows:

• Activate:
• Dynamic: not available
• Persistent: must be available
• IsTrue:
• Dynamic: the passed data might change on each call
• Persistent: available, but must check if an object is still valid
• Deactivate:
• Dynamic: not available
• Persistent: might not be available

When using a delegate to invalidate the query, it is advised to store weak pointer or handle to be able to unregister the delegate even if the persistent data is not available. Container for World Condition context data for a specific schema.

Syntax

struct FWorldConditionContextData  
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struct FWorldConditionContextData

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