Base class for all 2D shapes. Base class for all 2D shapes. All 2D shape types inherit from this. $DOCS_URL/tutorials/physics/physics_introduction.html Returns [code]true[/code] if this shape is colliding with another. This method needs the transformation matrix for this shape ([code]local_xform[/code]), the shape to check collisions with ([code]with_shape[/code]), and the transformation matrix of that shape ([code]shape_xform[/code]). Returns a list of the points where this shape touches another. If there are no collisions the list is empty. This method needs the transformation matrix for this shape ([code]local_xform[/code]), the shape to check collisions with ([code]with_shape[/code]), and the transformation matrix of that shape ([code]shape_xform[/code]). Returns whether this shape would collide with another, if a given movement was applied. This method needs the transformation matrix for this shape ([code]local_xform[/code]), the movement to test on this shape ([code]local_motion[/code]), the shape to check collisions with ([code]with_shape[/code]), the transformation matrix of that shape ([code]shape_xform[/code]), and the movement to test onto the other object ([code]shape_motion[/code]). Returns a list of the points where this shape would touch another, if a given movement was applied. If there are no collisions the list is empty. This method needs the transformation matrix for this shape ([code]local_xform[/code]), the movement to test on this shape ([code]local_motion[/code]), the shape to check collisions with ([code]with_shape[/code]), the transformation matrix of that shape ([code]shape_xform[/code]), and the movement to test onto the other object ([code]shape_motion[/code]). Draws a solid shape onto a [CanvasItem] with the [RenderingServer] API filled with the specified [code]color[/code]. The exact drawing method is specific for each shape and cannot be configured. The shape's custom solver bias.