public struct Rect: Equatable { var x: T, y: T, w: T, h: T var origin: Point { get { .init(self.x, self.y) } set(point) { self.x = point.x; self.y = point.y } } var size: Size { get { .init(self.w, self.h) } set(size) { self.w = size.w; self.h = size.h } } static var zero: Self { .init(origin: .zero, size: .zero) } init(x: T, y: T, width: T, height: T) { self.x = x self.y = y self.w = width self.h = height } init(origin: Point, size: Size) { self.x = origin.x self.y = origin.y self.w = size.w self.h = size.h } @inline(__always) public static func == (lhs: Self, rhs: Self) -> Bool { lhs.x == rhs.x && lhs.y == rhs.y && lhs.w == rhs.w && lhs.h == rhs.h } } public extension Rect where T: AdditiveArithmetic { var left: T { x } var right: T { x + w } var up: T { y } var down: T { y + h } }