pub struct Thunder(pub f32);
Expand description

Component containing the thunder level. Valid values are in [0, 1] with 0 being no rain and 1 being full rain.

Tuple Fields§

§0: f32

Methods from Deref<Target = f32>§

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pub const RADIX: u32 = 2u32

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pub const MANTISSA_DIGITS: u32 = 24u32

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pub const DIGITS: u32 = 6u32

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pub const EPSILON: f32 = 1.1920929E-7f32

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pub const MIN: f32 = -3.40282347E+38f32

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pub const MIN_POSITIVE: f32 = 1.17549435E-38f32

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pub const MAX: f32 = 3.40282347E+38f32

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pub const MIN_EXP: i32 = -125i32

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pub const MAX_EXP: i32 = 128i32

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pub const MIN_10_EXP: i32 = -37i32

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pub const MAX_10_EXP: i32 = 38i32

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pub const NAN: f32 = NaN_f32

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pub const INFINITY: f32 = +Inf_f32

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pub const NEG_INFINITY: f32 = -Inf_f32

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pub fn total_cmp(&self, other: &f32) -> Ordering

Return the ordering between self and other.

Unlike the standard partial comparison between floating point numbers, this comparison always produces an ordering in accordance to the totalOrder predicate as defined in the IEEE 754 (2008 revision) floating point standard. The values are ordered in the following sequence:

  • negative quiet NaN
  • negative signaling NaN
  • negative infinity
  • negative numbers
  • negative subnormal numbers
  • negative zero
  • positive zero
  • positive subnormal numbers
  • positive numbers
  • positive infinity
  • positive signaling NaN
  • positive quiet NaN.

The ordering established by this function does not always agree with the PartialOrd and PartialEq implementations of f32. For example, they consider negative and positive zero equal, while total_cmp doesn’t.

The interpretation of the signaling NaN bit follows the definition in the IEEE 754 standard, which may not match the interpretation by some of the older, non-conformant (e.g. MIPS) hardware implementations.

Example
struct GoodBoy {
    name: String,
    weight: f32,
}

let mut bois = vec![
    GoodBoy { name: "Pucci".to_owned(), weight: 0.1 },
    GoodBoy { name: "Woofer".to_owned(), weight: 99.0 },
    GoodBoy { name: "Yapper".to_owned(), weight: 10.0 },
    GoodBoy { name: "Chonk".to_owned(), weight: f32::INFINITY },
    GoodBoy { name: "Abs. Unit".to_owned(), weight: f32::NAN },
    GoodBoy { name: "Floaty".to_owned(), weight: -5.0 },
];

bois.sort_by(|a, b| a.weight.total_cmp(&b.weight));

// `f32::NAN` could be positive or negative, which will affect the sort order.
if f32::NAN.is_sign_negative() {
    assert!(bois.into_iter().map(|b| b.weight)
        .zip([f32::NAN, -5.0, 0.1, 10.0, 99.0, f32::INFINITY].iter())
        .all(|(a, b)| a.to_bits() == b.to_bits()))
} else {
    assert!(bois.into_iter().map(|b| b.weight)
        .zip([-5.0, 0.1, 10.0, 99.0, f32::INFINITY, f32::NAN].iter())
        .all(|(a, b)| a.to_bits() == b.to_bits()))
}

Trait Implementations§

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impl Component for Thunder
where Self: Send + Sync + 'static,

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type Storage = TableStorage

A marker type indicating the storage type used for this component. This must be either [TableStorage] or [SparseStorage].
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impl Default for Thunder

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fn default() -> Thunder

Returns the “default value” for a type. Read more
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impl Deref for Thunder

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type Target = f32

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl DerefMut for Thunder

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
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impl PartialEq for Thunder

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fn eq(&self, other: &Thunder) -> 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 PartialOrd for Thunder

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fn partial_cmp(&self, other: &Thunder) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StructuralPartialEq for Thunder

Auto Trait 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
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<C> Bundle for C
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fn component_ids( components: &mut Components, storages: &mut Storages, ids: &mut impl FnMut(ComponentId) )

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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn get_components(self, func: &mut impl FnMut(StorageType, OwningPtr<'_>))

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromWorld for T
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fn from_world(_world: &mut World) -> T

Creates Self using data from the given [World].
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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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Calls U::from(self).

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type Output = T

Should always be Self
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type Error = Infallible

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Performs the conversion.
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