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BgAttr

Struct BgAttr 

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pub struct BgAttr(/* private fields */);
Available on crate feature cgb only.
Expand description

Per-cell tilemap attributes, in VRAM bank 1 at the tilemap addresses.

BitFieldAccessMeaning
7priorityR/WSet draws this cell’s color indices 1-3 over objects.
6y_flipR/WMirror vertically.
5x_flipR/WMirror horizontally.
4R/WIgnored by the hardware.
3bankR/WFetch this cell’s tile from VRAM bank 1.
2-0paletteR/WWhich of the eight background palettes.

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impl BgAttr

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pub const fn new() -> Self

Creates a new default initialized bitfield.

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pub const fn from_bits(bits: u8) -> Self

Convert from bits.

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pub const fn into_bits(self) -> u8

Convert into bits.

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pub const fn palette(&self) -> u8

Which of the eight background palettes.

Bits: 0..3

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pub const fn with_palette_checked(self, value: u8) -> Result<Self, ()>

Which of the eight background palettes.

Bits: 0..3

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pub const fn with_palette(self, value: u8) -> Self

Which of the eight background palettes.

Bits: 0..3

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pub const fn set_palette(&mut self, value: u8)

Which of the eight background palettes.

Bits: 0..3

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pub const fn set_palette_checked(&mut self, value: u8) -> Result<(), ()>

Which of the eight background palettes.

Bits: 0..3

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pub const fn bank(&self) -> bool

Fetch this cell’s tile from VRAM bank 1 rather than bank 0.

Bits: 3..4

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pub const fn with_bank_checked(self, value: bool) -> Result<Self, ()>

Fetch this cell’s tile from VRAM bank 1 rather than bank 0.

Bits: 3..4

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pub const fn with_bank(self, value: bool) -> Self

Fetch this cell’s tile from VRAM bank 1 rather than bank 0.

Bits: 3..4

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pub const fn set_bank(&mut self, value: bool)

Fetch this cell’s tile from VRAM bank 1 rather than bank 0.

Bits: 3..4

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pub const fn set_bank_checked(&mut self, value: bool) -> Result<(), ()>

Fetch this cell’s tile from VRAM bank 1 rather than bank 0.

Bits: 3..4

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pub const fn x_flip(&self) -> bool

Mirror horizontally.

Bits: 5..6

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pub const fn with_x_flip_checked(self, value: bool) -> Result<Self, ()>

Mirror horizontally.

Bits: 5..6

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pub const fn with_x_flip(self, value: bool) -> Self

Mirror horizontally.

Bits: 5..6

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pub const fn set_x_flip(&mut self, value: bool)

Mirror horizontally.

Bits: 5..6

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pub const fn set_x_flip_checked(&mut self, value: bool) -> Result<(), ()>

Mirror horizontally.

Bits: 5..6

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pub const fn y_flip(&self) -> bool

Mirror vertically.

Bits: 6..7

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pub const fn with_y_flip_checked(self, value: bool) -> Result<Self, ()>

Mirror vertically.

Bits: 6..7

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pub const fn with_y_flip(self, value: bool) -> Self

Mirror vertically.

Bits: 6..7

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pub const fn set_y_flip(&mut self, value: bool)

Mirror vertically.

Bits: 6..7

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pub const fn set_y_flip_checked(&mut self, value: bool) -> Result<(), ()>

Mirror vertically.

Bits: 6..7

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pub const fn priority(&self) -> bool

Draw this cell’s color indices 1-3 over objects.

Bits: 7..8

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pub const fn with_priority_checked(self, value: bool) -> Result<Self, ()>

Draw this cell’s color indices 1-3 over objects.

Bits: 7..8

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pub const fn with_priority(self, value: bool) -> Self

Draw this cell’s color indices 1-3 over objects.

Bits: 7..8

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pub const fn set_priority(&mut self, value: bool)

Draw this cell’s color indices 1-3 over objects.

Bits: 7..8

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pub const fn set_priority_checked(&mut self, value: bool) -> Result<(), ()>

Draw this cell’s color indices 1-3 over objects.

Bits: 7..8

Trait Implementations§

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impl Clone for BgAttr

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fn clone(&self) -> BgAttr

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for BgAttr

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impl Debug for BgAttr

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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 BgAttr

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Eq for BgAttr

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impl From<BgAttr> for u8

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fn from(v: BgAttr) -> Self

Converts to this type from the input type.
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impl From<u8> for BgAttr

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fn from(v: u8) -> Self

Converts to this type from the input type.
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impl PartialEq for BgAttr

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for BgAttr

Auto Trait Implementations§

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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CellValue for T
where T: Copy + BankSafe,

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

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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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.