UnrealTypes.md

Unreal types

The built-in ue.um module provides Umka types that map directly to Unreal struct pins.

Plugin overview | Writing scripts | Arrays | Structs and maps

Import ue.um to use ue::Vector, ue::Rotator, ue::LinearColor, ue::Quat, and ue::Transform, including supported arrays, maps, and tuple results:

Umka type	Unreal type	Fields
ue::Vector	FVector	X, Y, Z
ue::Rotator	FRotator	Pitch, Yaw, Roll
ue::LinearColor	FLinearColor	R, G, B, A
ue::Quat	FQuat	X, Y, Z, W
ue::Transform	FTransform	Rotation, Translation, Scale3D

import "ue.um"

fn move*(Position: ue::Vector, Offset: ue::Vector): ue::Vector {
    return ue::Vector{Position.X + Offset.X, Position.Y + Offset.Y, Position.Z + Offset.Z}
}

Vector, Rotator, and Quat fields use real; LinearColor fields use real32. Transform contains Rotation, Translation, and Scale3D, and converts through Unreal's public transform accessors.

Aliases retain these native mappings. Independent structs with matching names or fields remain user-defined structs.