UCharacterMovementComponent::IsWalkable

function Engine Blueprint Since 4.0

#include "GameFramework/CharacterMovementComponent.h"

Access: public Specifiers: UFUNCTIONBlueprintCallablevirtual

Description

Returns true if the hit result should be considered a walkable surface for the character, based on the impact normal's angle relative to WalkableFloorZ.

Caveats & Gotchas

• Returns false immediately for hits that aren't a valid blocking hit, including hits where the trace started in penetration.
• The slope check uses GetGravitySpaceZ(Hit.ImpactNormal) rather than the raw world-space Z component, so it respects a custom gravity direction set via SetGravityDirection() instead of assuming 'up' is always +Z.
• Called frequently during floor-finding, so overrides that add expensive logic (trace, physical material lookups) can noticeably affect movement performance.

Signature

virtual bool IsWalkable(const FHitResult& Hit) const

Parameters

Name	Type	Description	Default
Hit	const FHitResult&	Hit result to test against the walkable floor angle.	—

Return Type

bool

Example

Reject icy surfaces as walkable C++

bool UMyMovementComponent::IsWalkable(const FHitResult& Hit) const
{
	if (Hit.PhysMaterial.IsValid() && Hit.PhysMaterial->SurfaceType == SurfaceType_Ice)
	{
		return false;
	}
	return Super::IsWalkable(Hit);
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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