55 lines
1.1 KiB
Rust
55 lines
1.1 KiB
Rust
use rand::Rng;
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use crate::p2;
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use crate::point2d::Point2d;
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use crate::v2;
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use crate::vec2d::Vec2d;
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pub struct Rect2d {
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origin: Point2d,
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size: Vec2d,
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}
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impl Rect2d {
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pub fn new(x0: i32, x1: i32, y0: i32, y1: i32) -> Rect2d {
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assert!(x0 <= x1 && y0 <= y1);
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let origin = p2!(x0, y0);
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let size = v2!(x1 - x0, y1 - y0);
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Rect2d { origin, size }
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}
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pub fn left(&self) -> i32 {
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self.origin.x
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}
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pub fn right(&self) -> i32 {
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self.origin.x + self.size.x
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}
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pub fn bottom(&self) -> i32 {
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self.origin.y
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}
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pub fn top(&self) -> i32 {
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self.origin.y + self.size.y
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}
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pub fn width(&self) -> i32 {
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self.size.x
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}
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pub fn height(&self) -> i32 {
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self.size.y
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}
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pub fn contains(&self, p: Point2d) -> bool {
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self.left() <= p.x && p.x < self.right() && self.bottom() <= p.y && p.y < self.top()
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}
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pub fn random_point<R>(&self, rng: &mut R) -> Point2d
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where
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R: Rng,
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{
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let x = rng.gen_range(self.left(), self.right());
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let y = rng.gen_range(self.bottom(), self.top());
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p2!(x, y)
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}
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}
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