Struct bevy_math::URect

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#[repr(C)]
pub struct URect { pub min: UVec2, pub max: UVec2, }
Expand description

A rectangle defined by two opposite corners.

The rectangle is axis aligned, and defined by its minimum and maximum coordinates, stored in URect::min and URect::max, respectively. The minimum/maximum invariant must be upheld by the user when directly assigning the fields, otherwise some methods produce invalid results. It is generally recommended to use one of the constructor methods instead, which will ensure this invariant is met, unless you already have the minimum and maximum corners.

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§min: UVec2

The minimum corner point of the rect.

§max: UVec2

The maximum corner point of the rect.

Implementations§

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impl URect

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pub fn new(x0: u32, y0: u32, x1: u32, y1: u32) -> Self

Create a new rectangle from two corner points.

The two points do not need to be the minimum and/or maximum corners. They only need to be two opposite corners.

Examples
let r = URect::new(0, 4, 10, 6); // w=10 h=2
let r = URect::new(2, 4, 5, 0); // w=3 h=4
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pub fn from_corners(p0: UVec2, p1: UVec2) -> Self

Create a new rectangle from two corner points.

The two points do not need to be the minimum and/or maximum corners. They only need to be two opposite corners.

Examples
// Unit rect from [0,0] to [1,1]
let r = URect::from_corners(UVec2::ZERO, UVec2::ONE); // w=1 h=1
// Same; the points do not need to be ordered
let r = URect::from_corners(UVec2::ONE, UVec2::ZERO); // w=1 h=1
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pub fn from_center_size(origin: UVec2, size: UVec2) -> Self

Create a new rectangle from its center and size.

Rounding Behaviour

If the size contains odd numbers they will be rounded down to the nearest whole number.

Panics

This method panics if any of the components of the size is negative or if origin - (size / 2) results in any negatives.

Examples
let r = URect::from_center_size(UVec2::ONE, UVec2::splat(2)); // w=2 h=2
assert_eq!(r.min, UVec2::splat(0));
assert_eq!(r.max, UVec2::splat(2));
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pub fn from_center_half_size(origin: UVec2, half_size: UVec2) -> Self

Create a new rectangle from its center and half-size.

Panics

This method panics if any of the components of the half-size is negative or if origin - half_size results in any negatives.

Examples
let r = URect::from_center_half_size(UVec2::ONE, UVec2::ONE); // w=2 h=2
assert_eq!(r.min, UVec2::splat(0));
assert_eq!(r.max, UVec2::splat(2));
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pub fn is_empty(&self) -> bool

Check if the rectangle is empty.

Examples
let r = URect::from_corners(UVec2::ZERO, UVec2::new(0, 1)); // w=0 h=1
assert!(r.is_empty());
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pub const fn width(&self) -> u32

Rectangle width (max.x - min.x).

Examples
let r = URect::new(0, 0, 5, 1); // w=5 h=1
assert_eq!(r.width(), 5);
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pub const fn height(&self) -> u32

Rectangle height (max.y - min.y).

Examples
let r = URect::new(0, 0, 5, 1); // w=5 h=1
assert_eq!(r.height(), 1);
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pub fn size(&self) -> UVec2

Rectangle size.

Examples
let r = URect::new(0, 0, 5, 1); // w=5 h=1
assert_eq!(r.size(), UVec2::new(5, 1));
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pub fn half_size(&self) -> UVec2

Rectangle half-size.

Rounding Behaviour

If the full size contains odd numbers they will be rounded down to the nearest whole number when calculating the half size.

Examples
let r = URect::new(0, 0, 4, 2); // w=4 h=2
assert_eq!(r.half_size(), UVec2::new(2, 1));
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pub fn center(&self) -> UVec2

The center point of the rectangle.

Rounding Behaviour

If the (min + max) contains odd numbers they will be rounded down to the nearest whole number when calculating the center.

Examples
let r = URect::new(0, 0, 4, 2); // w=4 h=2
assert_eq!(r.center(), UVec2::new(2, 1));
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pub fn contains(&self, point: UVec2) -> bool

Check if a point lies within this rectangle, inclusive of its edges.

Examples
let r = URect::new(0, 0, 5, 1); // w=5 h=1
assert!(r.contains(r.center()));
assert!(r.contains(r.min));
assert!(r.contains(r.max));
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pub fn union(&self, other: Self) -> Self

Build a new rectangle formed of the union of this rectangle and another rectangle.

The union is the smallest rectangle enclosing both rectangles.

Examples
let r1 = URect::new(0, 0, 5, 1); // w=5 h=1
let r2 = URect::new(1, 0, 3, 8); // w=2 h=4
let r = r1.union(r2);
assert_eq!(r.min, UVec2::new(0, 0));
assert_eq!(r.max, UVec2::new(5, 8));
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pub fn union_point(&self, other: UVec2) -> Self

Build a new rectangle formed of the union of this rectangle and a point.

The union is the smallest rectangle enclosing both the rectangle and the point. If the point is already inside the rectangle, this method returns a copy of the rectangle.

Examples
let r = URect::new(0, 0, 5, 1); // w=5 h=1
let u = r.union_point(UVec2::new(3, 6));
assert_eq!(u.min, UVec2::ZERO);
assert_eq!(u.max, UVec2::new(5, 6));
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pub fn intersect(&self, other: Self) -> Self

Build a new rectangle formed of the intersection of this rectangle and another rectangle.

The intersection is the largest rectangle enclosed in both rectangles. If the intersection is empty, this method returns an empty rectangle (URect::is_empty() returns true), but the actual values of URect::min and URect::max are implementation-dependent.

Examples
let r1 = URect::new(0, 0, 2, 2); // w=2 h=2
let r2 = URect::new(1, 1, 3, 3); // w=2 h=2
let r = r1.intersect(r2);
assert_eq!(r.min, UVec2::new(1, 1));
assert_eq!(r.max, UVec2::new(2, 2));
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pub fn inset(&self, inset: i32) -> Self

Create a new rectangle with a constant inset.

The inset is the extra border on all sides. A positive inset produces a larger rectangle, while a negative inset is allowed and produces a smaller rectangle. If the inset is negative and its absolute value is larger than the rectangle half-size, the created rectangle is empty.

Examples
let r = URect::new(4, 4, 6, 6); // w=2 h=2
let r2 = r.inset(1); // w=4 h=4
assert_eq!(r2.min, UVec2::splat(3));
assert_eq!(r2.max, UVec2::splat(7));

let r = URect::new(4, 4, 8, 8); // w=4 h=4
let r2 = r.inset(-1); // w=2 h=2
assert_eq!(r2.min, UVec2::splat(5));
assert_eq!(r2.max, UVec2::splat(7));
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pub fn as_rect(&self) -> Rect

Returns self as Rect (f32)

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pub fn as_irect(&self) -> IRect

Returns self as IRect (i32)

Trait Implementations§

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impl Clone for URect

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fn clone(&self) -> URect

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for URect

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

Formats the value using the given formatter. Read more
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impl Default for URect

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fn default() -> URect

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for URect

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Hash for URect

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for URect

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for URect

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Copy for URect

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impl Eq for URect

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impl StructuralEq for URect

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impl StructuralPartialEq for URect

Auto Trait Implementations§

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impl RefUnwindSafe for URect

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impl Send for URect

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impl Sync for URect

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impl Unpin for URect

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impl UnwindSafe for URect

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,