Struct agb_fixnum::Rect

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pub struct Rect<T: Number> {
    pub position: Vector2D<T>,
    pub size: Vector2D<T>,
}

Expand description

A rectangle with a position in 2d space and a 2d size

Fields§

§position: Vector2D<T>

The position of the rectangle

§size: Vector2D<T>

The size of the rectangle

Implementations§

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impl<T: Number> Rect<T>

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pub fn new(position: Vector2D<T>, size: Vector2D<T>) -> Self

Creates a rectangle from it’s position and size

let r = Rect::new(Vector2D::new(1,1), Vector2D::new(2,3));
assert_eq!(r.position, Vector2D::new(1,1));
assert_eq!(r.size, Vector2D::new(2,3));

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pub fn contains_point(&self, point: Vector2D<T>) -> bool

Returns true if the rectangle contains the point given, note that the boundary counts as containing the rectangle.

let r = Rect::new(Vector2D::new(1,1), Vector2D::new(3,3));
assert!(r.contains_point(Vector2D::new(1,1)));
assert!(r.contains_point(Vector2D::new(2,2)));
assert!(r.contains_point(Vector2D::new(3,3)));
assert!(r.contains_point(Vector2D::new(4,4)));

assert!(!r.contains_point(Vector2D::new(0,2)));
assert!(!r.contains_point(Vector2D::new(5,2)));
assert!(!r.contains_point(Vector2D::new(2,0)));
assert!(!r.contains_point(Vector2D::new(2,5)));

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pub fn touches(&self, other: Rect<T>) -> bool

Returns true if the other rectangle touches or overlaps the first.

let r = Rect::new(Vector2D::new(1,1), Vector2D::new(3,3));

assert!(r.touches(r.clone()));

let r1 = Rect::new(Vector2D::new(2,2), Vector2D::new(3,3));
assert!(r.touches(r1));

let r2 = Rect::new(Vector2D::new(-10,-10), Vector2D::new(3,3));
assert!(!r.touches(r2));

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pub fn overlapping_rect(&self, other: Rect<T>) -> Option<Self>

Returns the rectangle that is the region that the two rectangles have in common, or None if they don’t overlap

let r = Rect::new(Vector2D::new(1,1), Vector2D::new(3,3));
let r2 = Rect::new(Vector2D::new(2,2), Vector2D::new(3,3));

assert_eq!(r.overlapping_rect(r2), Some(Rect::new(Vector2D::new(2,2), Vector2D::new(2,2))));

let r = Rect::new(Vector2D::new(1,1), Vector2D::new(3,3));
let r2 = Rect::new(Vector2D::new(-10,-10), Vector2D::new(3,3));

assert_eq!(r.overlapping_rect(r2), None);

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impl<T: FixedWidthUnsignedInteger> Rect<T>

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pub fn iter(self) -> impl Iterator<Item = (T, T)>

Iterate over the points in a rectangle in row major order.

let r = Rect::new(Vector2D::new(1,1), Vector2D::new(2,3));

let expected_points = vec![(1,1), (2,1), (1,2), (2,2), (1,3), (2,3)];
let rect_points: Vec<(i32, i32)> = r.iter().collect();

assert_eq!(rect_points, expected_points);