Rect2 consists of a position, a size, and several utility functions. It is typically used for fast overlap tests.
Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) Copyright (c) 2017-2018 Godot-D contributors
2D Axis-aligned bounding box.