<?xml version="1.0" encoding="UTF-8" ?> <class name="GrooveJoint2D" inherits="Joint2D" version="4.0"> <brief_description> Groove constraint for 2D physics. </brief_description> <description> Groove constraint for 2D physics. This is useful for making a body "slide" through a segment placed in another. </description> <tutorials> </tutorials> <members> <member name="initial_offset" type="float" setter="set_initial_offset" getter="get_initial_offset" default="25.0"> The body B's initial anchor position defined by the joint's origin and a local offset [member initial_offset] along the joint's Y axis (along the groove). </member> <member name="length" type="float" setter="set_length" getter="get_length" default="50.0"> The groove's length. The groove is from the joint's origin towards [member length] along the joint's local Y axis. </member> </members> </class>