An easing type defining how to ease float values. The FPositionHistory is a container to record position changes over time. This is used to calculate velocity of a bone, for example. The FPositionArray also tracks the last index used to allow for reuse of entries (instead of appending to the array all the time).
Editor Properties: (see get_editor_property/set_editor_property)
positions(Array(Vector)): [Read-Write] The recorded positions
range(float): [Read-Write] The range for this particular history