Left Hand Grip (ANS_TFA_LeftHandGrip)

Drives left-hand placement/grip logic over a time window.

Asset path: /Game/InfimaGames/TacticalFPSAnimations/Common/Core/Animation/ANS_TFA_LeftHandGrip

ANS_TFA_LeftHandGrip is the notify state used when the support hand should leave the normal weapon grip for a while and then blend back in smoothly. It is commonly used for reload handling, charging-handle interactions, or any moment where the left hand needs a special pose or temporary release.

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Quick Navigation

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• Purpose

• Notify State Blueprint Flow

• Parameters

• What Consumes This State

• Placement Tips

• Troubleshooting

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Purpose

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Typical uses include:

• Moving the support hand to a charging handle

• Switching from a normal grip into a reload grip

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Owner Requirement

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This notify state only works when the active mesh uses an anim instance that implements BPI_TFA_AnimationState.

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Notify State Blueprint Flow

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This notify state uses Received_NotifyBegin and Received_NotifyEnd, and it calls an interface function on the active anim instance:

• BPI_TFA_AnimationState.UpdateLeftHandGrip(IsLeftHandOnWeapon, BlendSpeed)

Begin

1. MeshComp.GetAnimInstance()

2. Call UpdateLeftHandGrip(IsLeftHandOnWeapon = false, BlendSpeed = BlendOutSpeed)

3. Return false

End

1. MeshComp.GetAnimInstance()

2. Call UpdateLeftHandGrip(IsLeftHandOnWeapon = true, BlendSpeed = BlendReturnSpeed)

3. Return false

Default Values

• BlendOutSpeed = 15.0

• BlendReturnSpeed = 15.0

Readable Blueprint Flow

Received_NotifyBegin
  -> AnimInstance = MeshComp.GetAnimInstance()
  -> AnimInstance.UpdateLeftHandGrip(IsLeftHandOnWeapon = false, BlendSpeed = BlendOutSpeed)
  -> ReturnValue = false

Received_NotifyEnd
  -> AnimInstance = MeshComp.GetAnimInstance()
  -> AnimInstance.UpdateLeftHandGrip(IsLeftHandOnWeapon = true, BlendSpeed = BlendReturnSpeed)
  -> ReturnValue = false

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Parameters

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This notify state exposes two tuning values:

• BlendOutSpeed, used on notify begin

• BlendReturnSpeed, used on notify end

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What Consumes This State

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The message target is the anim instance implementing BPI_TFA_AnimationState, which means the actual grip blending logic lives in your AnimBP or another custom AnimInstance class that implements the interface.

This state does not cast to the character or the weapon. If the active anim instance does not implement BPI_TFA_AnimationState, the message call will quietly do nothing.

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Placement Tips

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• Make the window cover the full period where the left hand should use the special grip behavior

• Tune BlendOutSpeed and BlendReturnSpeed so the hand does not visibly snap

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Troubleshooting

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• No effect

  • Confirm the mesh’s anim instance implements BPI_TFA_AnimationState

  • Confirm UpdateLeftHandGrip actually drives IK or grip placement inside the AnimBP

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Related Pages

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• Animation State Interface (BPI_TFA_AnimationState)

• First Person Base Character AnimBP (ABP_TFA_FP_BaseCharacter)

• Third Person Base Character AnimBP (ABP_TFA_TP_BaseCharacter)