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Change Spring Arm Adjustement after Collision Test

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    Change Spring Arm Adjustement after Collision Test

    I want to change the ammount a spring arm component adjusts the camera after performing a collision test.

    For example, when my camera collides against a wall (so the collision test performed is successful) the spring arm adjusts the camera on top of the player's head.
    Is there a way to tweak this a bit to make it adjust it a bit further back and less on top?

    #2
    Are you trying to post process the adjusted spring arm location? If so, then override the UpdateDesiredArmLocation method
    Code:
    void MySpringArmComponent::UpdateDesiredArmLocation
    (
        bool bDoTrace,
        bool bDoLocationLag,
        bool bDoRotationLag,
        float DeltaTime
    )
    {
        Super::UpdateDesiredArmLocation(bDoTrace, bDoLocationLag, bDoRotationLag, DeltaTime);
    
        // Spring arm should be adjusted now, you can further adjust it below
    }
    Alternatively, you can override the BlendLocation. When the spring arm detects a collision, it calls this method passing in the DesiredArmLocation (without collision) and the HitLocation and whether it is a blocking hit. By default, if a blocking hit is found, it returns HitLocation so that the UpdateDesiredArmLocation method can use it as a final target location.

    Instead of selecting either the DesiredArmLocation or HitLocation based on a hit detection, you can implement custom logic to return something in between, or anything tweaked in fact.

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