Struct Rect 

pub struct Rect {
    pub min: Vec2,
    pub max: Vec2,
}

2D 矩形，用于边界检测和 UI 布局

矩形使用最小点和最大点表示，确保 min.x <= max.x 和 min.y <= max.y。

Fields

min: Vec2

最小点（左下角）

max: Vec2

最大点（右上角）

Implementations

impl Rect

pub const ZERO: Rect

零大小的矩形

pub fn new(min: Vec2, max: Vec2) -> Rect

创建新的矩形

参数

• min: 最小点
• max: 最大点

注意

如果 min 的某个分量大于 max 的对应分量，会自动交换以确保有效性。

示例

use anvilkit_core::math::geometry::Rect;
use glam::Vec2;
 
let rect = Rect::new(Vec2::ZERO, Vec2::new(10.0, 20.0));
assert_eq!(rect.width(), 10.0);
assert_eq!(rect.height(), 20.0);

pub fn from_center_size(center: Vec2, size: Vec2) -> Rect

从中心点和大小创建矩形

示例

use anvilkit_core::math::geometry::Rect;
use glam::Vec2;
 
let rect = Rect::from_center_size(Vec2::new(5.0, 5.0), Vec2::new(10.0, 20.0));
assert_eq!(rect.center(), Vec2::new(5.0, 5.0));

pub fn from_position_size(position: Vec2, size: Vec2) -> Rect

从位置和大小创建矩形（位置为左下角）

pub fn width(&self) -> f32

获取矩形宽度

pub fn height(&self) -> f32

获取矩形高度

pub fn size(&self) -> Vec2

获取矩形大小

pub fn center(&self) -> Vec2

获取矩形中心点

pub fn area(&self) -> f32

获取矩形面积

pub fn perimeter(&self) -> f32

获取矩形周长

pub fn contains(&self, point: Vec2) -> bool

检查点是否在矩形内

示例

use anvilkit_core::math::geometry::Rect;
use glam::Vec2;
 
let rect = Rect::new(Vec2::ZERO, Vec2::new(10.0, 10.0));
assert!(rect.contains(Vec2::new(5.0, 5.0)));
assert!(!rect.contains(Vec2::new(15.0, 5.0)));

pub fn intersects(&self, other: &Rect) -> bool

检查是否与另一个矩形相交

示例

use anvilkit_core::math::geometry::Rect;
use glam::Vec2;
 
let rect1 = Rect::new(Vec2::ZERO, Vec2::new(10.0, 10.0));
let rect2 = Rect::new(Vec2::new(5.0, 5.0), Vec2::new(15.0, 15.0));
assert!(rect1.intersects(&rect2));

pub fn intersects_circle(&self, circle: &Circle) -> bool

检查是否与圆形相交

pub fn intersection(&self, other: &Rect) -> Option<Rect>

计算与另一个矩形的交集

返回

如果两个矩形相交，返回交集矩形；否则返回 None。

pub fn union(&self, other: &Rect) -> Rect

计算包含两个矩形的最小矩形

pub fn expand_to_include(&mut self, point: Vec2)

扩展矩形以包含指定点

pub fn expand(&self, amount: f32) -> Rect

按指定量扩展矩形

参数

• amount: 扩展量，正值扩展，负值收缩

pub fn is_valid(&self) -> bool

检查矩形是否有效（非负大小）

Trait Implementations

impl Clone for Rect

fn clone(&self) -> Rect

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Rect

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialEq for Rect

fn eq(&self, other: &Rect) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Rect

impl StructuralPartialEq for Rect