Struct RootMotionSource

Generalized source of Root Motion to a CharacterMovementComponent.

Inherited Members

System.ValueType.Equals(System.Object)

System.ValueType.GetHashCode()

System.ValueType.ToString()

System.Object.Equals(System.Object, System.Object)

System.Object.GetType()

System.Object.ReferenceEquals(System.Object, System.Object)

Namespace: UE4.Engine

Assembly: UE4DotNet.dll

Syntax

public struct RootMotionSource

Remarks

Has priorities and different accumulation modes (override, additive, set, ignore).

RootMotionSources are accumulated from highest priority to lowest, once all values are "finalized" (meaning no more accumulation to those values), root motion accumulation is finished. Having all of translation and rotation in a transform being overridden during root motion accumulation means that CharacterMovementComponent Phys*() functions no longer need to CalcVelocity() since it'll just get overridden anyway.

Some example source possibilities: Full Animation Root Motion (matching only form of root motion we've supported historically): - Overrides all translation axes or rotation or both - Very High priority so it gets applied first and since it is override no other RootMotionSources have an influence that are lower priority - Scale on translation and/or rotation is set to 1 to match animation 1 for 1 - Provides local space transform (character-orientation relative)

        - End result: Same as before - overrides velocity/rotation to values in AnimMontage
        - But can now scale individual translation axes if desired, or instead of override
          can use "set" to allow other additive sources of root motion to be applied on top
          of the animation root motion (modify velocity to home root motion melee attacks, etc.)

Jump pad volumes that work during animation root montage attacks
        - Constant velocity modification Z up, additive and high priority
        - Attack/melee animation root motion uses "set" instead of "override" to allow other sources
        - Animation root motion is applied, then the Z up additive of this source is so you are
          affected by the jump pad

Attack/melee homing
        - Additive, lower priority so it gets applied after any animation/significant root motion
        - World space, sourced by logic modifying velocity to go towards nearby enemies
        - Could point to a UAbilityTask node from the GameplayAbilities system

Character movement controlled by splines/curves in-editor instead of requiring animation tweaks
        - Same as animation root motion but source from spline/curve data

Fields

bInLocalSpace

Declaration

public bool bInLocalSpace

Field Value

Type	Description
System.Boolean

CurrentTime

Declaration

public float CurrentTime

Field Value

Type	Description
System.Single

Duration

Declaration

public float Duration

Field Value

Type	Description
System.Single

InstanceName

Declaration

public Name InstanceName

Field Value

Type	Description
Name

PreviousTime

Declaration

public float PreviousTime

Field Value

Type	Description
System.Single

StartTime

Declaration

public float StartTime

Field Value

Type	Description
System.Single