2D Axis-aligned bounding box. Rect2 provides an 2D Axis-Aligned Bounding Box. It consists of a position, a size, and several utility functions. It is typically used for fast overlap tests. Construct a [Rect2] by position and size. Construct a [Rect2] by x, y, width and height. Returns the intersection of this [Rect2] and b. Returns true if this [Rect2] completely encloses another one. Return this [Rect2] expanded to include a given point. Get the area of the [Rect2]. Return a copy of the [Rect2] grown a given amount of units towards all the sides. Return true if the [Rect2] is flat or empty. Return true if the [Rect2] contains a point. Return true if the [Rect2] overlaps with another. Combine this [Rect2] with another, a larger one is returned that contains both. Ending corner. Position (starting corner). Size from position to end.