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  3. FWorldConditionEditable

FWorldConditionEditable

World Condition Query is an expression of World Conditions whose state can be queried.

API > API/Plugins > API/Plugins/WorldConditions

World Condition Query is an expression of World Conditions whose state can be queried. The state of query and individual conditions can be cached, which allows to evaluate the conditions quickly. See FWorldConditionBase for more information about the conditions.

The World Condition Query is split it two parts: FWorldConditionQueryDefinition and FWorldConditionQueryState. Definition is the "const" part of the query and state contain runtime caching and runtime state of the condition. This allows the definition to be stored in an asset, and we can allocate just the per instance data when needed.

Conditions operate on context data which is defined in a UWorldConditionSchema. The schema describes what kind of structs and objects are available as input for the conditions, and what conditions can be used in specific use case.

The state is tightly coupled to the definition. The memory layout of the state is stored in the definition.

For convenience there is also FWorldConditionQuery which combines these two in one package. Struct used to store a world condition in editor or to apply hotfixes. Used internally. Note that the Operator and ExpressionDepth are stored here separately from the World Condition to make sure they are not reset if the Condition is empty.

   
Name FWorldConditionEditable
Type struct
Header File /Engine/Plugins/Runtime/WorldConditions/Source/WorldConditions/Public/WorldConditionQuery.h
Include Path #include "WorldConditionQuery.h"

Syntax

USTRUCT ()  
struct FWorldConditionEditable

Constructors

Name Remarks Include Path Unreal Specifiers
  WorldConditionQuery.h  

FWorldConditionEditable ( const uint8 InExpressionDepth,
const EWorldConditionOperator InOperator,
const FConstStructView InCondition
)

   WorldConditionQuery.h  

FWorldConditionEditable ( const uint8 InExpressionDepth,
const EWorldConditionOperator InOperator,
const bool bInInvert,
const FConstStructView InCondition
)

   WorldConditionQuery.h  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
bInvert bool Controls whether the value of the expressions as calculated by IsTrue should be inverted. WorldConditionQuery.h
  • EditAnywhere
  • Category="Default"
Condition FInstancedStruct Instance of a world condition. WorldConditionQuery.h
  • EditAnywhere
  • Category="Default"
ExpressionDepth uint8 Expression depth controlling the parenthesis of the expression. WorldConditionQuery.h
  • EditAnywhere
  • Category="Default"
Operator EWorldConditionOperator Operator describing how the results of the condition is combined with other conditions. WorldConditionQuery.h
  • EditAnywhere
  • Category="Default"

Functions

Public

Name Remarks Include Path Unreal Specifiers

void Reset()

   WorldConditionQuery.h  

Operators

Name Remarks Include Path Unreal Specifiers

bool operator!= ( const FWorldConditionEditable& Other
) const

   WorldConditionQuery.h  

bool operator== ( const FWorldConditionEditable& Other
) const

   WorldConditionQuery.h  

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