Struct bevy::sprite::TextureAtlasLayout
pub struct TextureAtlasLayout {
pub size: Vec2,
pub textures: Vec<Rect>,
/* private fields */
}
Expand description
Stores a map used to lookup the position of a texture in a TextureAtlas
.
This can be used to either use and look up a specific section of a texture, or animate frame-by-frame as a sprite sheet.
Optionally it can store a mapping from sub texture handles to the related area index (see
TextureAtlasBuilder
).
Example usage animating sprite. Example usage loading sprite sheet.
Fields§
§size: Vec2
§textures: Vec<Rect>
The specific areas of the atlas where each texture can be found
Implementations§
§impl TextureAtlasLayout
impl TextureAtlasLayout
pub fn new_empty(dimensions: Vec2) -> TextureAtlasLayout
pub fn new_empty(dimensions: Vec2) -> TextureAtlasLayout
Create a new empty layout with custom dimensions
pub fn from_grid(
tile_size: Vec2,
columns: usize,
rows: usize,
padding: Option<Vec2>,
offset: Option<Vec2>
) -> TextureAtlasLayout
pub fn from_grid( tile_size: Vec2, columns: usize, rows: usize, padding: Option<Vec2>, offset: Option<Vec2> ) -> TextureAtlasLayout
Generate a TextureAtlasLayout
as a grid where each
tile_size
by tile_size
grid-cell is one of the section in the
atlas. Grid cells are separated by some padding
, and the grid starts
at offset
pixels from the top left corner. Resulting layout is
indexed left to right, top to bottom.
§Arguments
tile_size
- Each layout grid cell sizecolumns
- Grid column countrows
- Grid row countpadding
- Optional padding between cellsoffset
- Optional global grid offset
Examples found in repository?
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fn setup(
mut commands: Commands,
asset_server: Res<AssetServer>,
mut texture_atlas_layouts: ResMut<Assets<TextureAtlasLayout>>,
) {
let texture = asset_server.load("textures/rpg/chars/gabe/gabe-idle-run.png");
let layout = TextureAtlasLayout::from_grid(Vec2::new(24.0, 24.0), 7, 1, None, None);
let texture_atlas_layout = texture_atlas_layouts.add(layout);
// Use only the subset of sprites in the sheet that make up the run animation
let animation_indices = AnimationIndices { first: 1, last: 6 };
commands.spawn(Camera2dBundle::default());
commands.spawn((
SpriteSheetBundle {
texture,
atlas: TextureAtlas {
layout: texture_atlas_layout,
index: animation_indices.first,
},
transform: Transform::from_scale(Vec3::splat(6.0)),
..default()
},
animation_indices,
AnimationTimer(Timer::from_seconds(0.1, TimerMode::Repeating)),
));
}
More examples
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fn setup(
mut commands: Commands,
asset_server: Res<AssetServer>,
mut texture_atlases: ResMut<Assets<TextureAtlasLayout>>,
) {
// Camera
commands.spawn(Camera2dBundle::default());
let text_style = TextStyle {
font_size: 20.,
..default()
};
let texture_handle = asset_server.load("textures/rpg/chars/gabe/gabe-idle-run.png");
let texture_atlas = TextureAtlasLayout::from_grid(Vec2::new(24.0, 24.0), 7, 1, None, None);
let texture_atlas_handle = texture_atlases.add(texture_atlas);
// root node
commands
.spawn(NodeBundle {
style: Style {
width: Val::Percent(100.0),
height: Val::Percent(100.0),
flex_direction: FlexDirection::Column,
justify_content: JustifyContent::Center,
align_items: AlignItems::Center,
row_gap: Val::Px(text_style.font_size * 2.),
..default()
},
..default()
})
.with_children(|parent| {
parent.spawn(AtlasImageBundle {
style: Style {
width: Val::Px(256.),
height: Val::Px(256.),
..default()
},
texture_atlas: texture_atlas_handle.into(),
image: UiImage::new(texture_handle),
..default()
});
parent.spawn(TextBundle::from_sections([
TextSection::new("press ".to_string(), text_style.clone()),
TextSection::new(
"space".to_string(),
TextStyle {
color: Color::YELLOW,
..text_style.clone()
},
),
TextSection::new(" to advance frames".to_string(), text_style),
]));
});
}
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fn setup(
mut commands: Commands,
assets: Res<AssetServer>,
mut texture_atlases: ResMut<Assets<TextureAtlasLayout>>,
) {
warn!(include_str!("warning_string.txt"));
let mut rng = rand::thread_rng();
let tile_size = Vec2::splat(64.0);
let map_size = Vec2::splat(320.0);
let half_x = (map_size.x / 2.0) as i32;
let half_y = (map_size.y / 2.0) as i32;
let texture_handle = assets.load("textures/rpg/chars/gabe/gabe-idle-run.png");
let texture_atlas = TextureAtlasLayout::from_grid(Vec2::new(24.0, 24.0), 7, 1, None, None);
let texture_atlas_handle = texture_atlases.add(texture_atlas);
// Spawns the camera
commands.spawn(Camera2dBundle::default());
// Builds and spawns the sprites
for y in -half_y..half_y {
for x in -half_x..half_x {
let position = Vec2::new(x as f32, y as f32);
let translation = (position * tile_size).extend(rng.gen::<f32>());
let rotation = Quat::from_rotation_z(rng.gen::<f32>());
let scale = Vec3::splat(rng.gen::<f32>() * 2.0);
let mut timer = Timer::from_seconds(0.1, TimerMode::Repeating);
timer.set_elapsed(Duration::from_secs_f32(rng.gen::<f32>()));
commands.spawn((
SpriteSheetBundle {
texture: texture_handle.clone(),
atlas: TextureAtlas {
layout: texture_atlas_handle.clone(),
..Default::default()
},
transform: Transform {
translation,
rotation,
scale,
},
sprite: Sprite {
custom_size: Some(tile_size),
..default()
},
..default()
},
AnimationTimer(timer),
));
}
}
}
pub fn add_texture(&mut self, rect: Rect) -> usize
pub fn add_texture(&mut self, rect: Rect) -> usize
Add a section to the list in the layout and returns its index
which can be used with TextureAtlas
§Arguments
rect
- The section of the texture to be added
pub fn len(&self) -> usize
pub fn len(&self) -> usize
The number of textures in the TextureAtlasLayout
pub fn is_empty(&self) -> bool
pub fn get_texture_index(
&self,
texture: impl Into<AssetId<Image>>
) -> Option<usize>
pub fn get_texture_index( &self, texture: impl Into<AssetId<Image>> ) -> Option<usize>
Retrieves the texture section index of the given texture
handle.
This requires the layout to have been built using a TextureAtlasBuilder
Examples found in repository?
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fn setup(
mut commands: Commands,
rpg_sprite_handles: Res<RpgSpriteFolder>,
asset_server: Res<AssetServer>,
mut texture_atlases: ResMut<Assets<TextureAtlasLayout>>,
loaded_folders: Res<Assets<LoadedFolder>>,
mut textures: ResMut<Assets<Image>>,
) {
let loaded_folder = loaded_folders.get(&rpg_sprite_handles.0).unwrap();
// create texture atlases with different padding and sampling
let (texture_atlas_linear, linear_texture) = create_texture_atlas(
loaded_folder,
None,
Some(ImageSampler::linear()),
&mut textures,
);
let atlas_linear_handle = texture_atlases.add(texture_atlas_linear.clone());
let (texture_atlas_nearest, nearest_texture) = create_texture_atlas(
loaded_folder,
None,
Some(ImageSampler::nearest()),
&mut textures,
);
let atlas_nearest_handle = texture_atlases.add(texture_atlas_nearest);
let (texture_atlas_linear_padded, linear_padded_texture) = create_texture_atlas(
loaded_folder,
Some(UVec2::new(6, 6)),
Some(ImageSampler::linear()),
&mut textures,
);
let atlas_linear_padded_handle = texture_atlases.add(texture_atlas_linear_padded.clone());
let (texture_atlas_nearest_padded, nearest_padded_texture) = create_texture_atlas(
loaded_folder,
Some(UVec2::new(6, 6)),
Some(ImageSampler::nearest()),
&mut textures,
);
let atlas_nearest_padded_handle = texture_atlases.add(texture_atlas_nearest_padded);
// setup 2d scene
commands.spawn(Camera2dBundle::default());
// padded textures are to the right, unpadded to the left
// draw unpadded texture atlas
commands.spawn(SpriteBundle {
texture: linear_texture.clone(),
transform: Transform {
translation: Vec3::new(-250.0, -130.0, 0.0),
scale: Vec3::splat(0.8),
..default()
},
..default()
});
// draw padded texture atlas
commands.spawn(SpriteBundle {
texture: linear_padded_texture.clone(),
transform: Transform {
translation: Vec3::new(250.0, -130.0, 0.0),
scale: Vec3::splat(0.8),
..default()
},
..default()
});
let font = asset_server.load("fonts/FiraSans-Bold.ttf");
// padding label text style
let text_style: TextStyle = TextStyle {
font: font.clone(),
font_size: 50.0,
color: Color::WHITE,
};
// labels to indicate padding
// No padding
create_label(
&mut commands,
(-250.0, 330.0, 0.0),
"No padding",
text_style.clone(),
);
// Padding
create_label(&mut commands, (250.0, 330.0, 0.0), "Padding", text_style);
// get handle to a sprite to render
let vendor_handle: Handle<Image> = asset_server
.get_handle("textures/rpg/chars/vendor/generic-rpg-vendor.png")
.unwrap();
// get index of the sprite in the texture atlas, this is used to render the sprite
// the index is the same for all the texture atlases, since they are created from the same folder
let vendor_index = texture_atlas_linear
.get_texture_index(&vendor_handle)
.unwrap();
// configuration array to render sprites through iteration
let configurations: [(&str, Handle<TextureAtlasLayout>, Handle<Image>, f32); 4] = [
("Linear", atlas_linear_handle, linear_texture, -350.0),
("Nearest", atlas_nearest_handle, nearest_texture, -150.0),
(
"Linear",
atlas_linear_padded_handle,
linear_padded_texture,
150.0,
),
(
"Nearest",
atlas_nearest_padded_handle,
nearest_padded_texture,
350.0,
),
];
// label text style
let sampling_label_style = TextStyle {
font,
font_size: 30.0,
color: Color::WHITE,
};
let base_y = 170.0; // y position of the sprites
for (sampling, atlas_handle, image_handle, x) in configurations {
// render a sprite from the texture_atlas
create_sprite_from_atlas(
&mut commands,
(x, base_y, 0.0),
vendor_index,
atlas_handle,
image_handle,
);
// render a label to indicate the sampling setting
create_label(
&mut commands,
(x, base_y + 110.0, 0.0), // offset to y position of the sprite
sampling,
sampling_label_style.clone(),
);
}
}
Trait Implementations§
§impl Clone for TextureAtlasLayout
impl Clone for TextureAtlasLayout
§fn clone(&self) -> TextureAtlasLayout
fn clone(&self) -> TextureAtlasLayout
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read more§impl Debug for TextureAtlasLayout
impl Debug for TextureAtlasLayout
§impl FromReflect for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
impl FromReflect for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
§fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<TextureAtlasLayout>
fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<TextureAtlasLayout>
Self
from a reflected value.§fn take_from_reflect(
reflect: Box<dyn Reflect>
) -> Result<Self, Box<dyn Reflect>>
fn take_from_reflect( reflect: Box<dyn Reflect> ) -> Result<Self, Box<dyn Reflect>>
Self
using,
constructing the value using from_reflect
if that fails. Read more§impl GetTypeRegistration for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
impl GetTypeRegistration for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
§impl Reflect for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
impl Reflect for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
§fn get_represented_type_info(&self) -> Option<&'static TypeInfo>
fn get_represented_type_info(&self) -> Option<&'static TypeInfo>
§fn into_any(self: Box<TextureAtlasLayout>) -> Box<dyn Any>
fn into_any(self: Box<TextureAtlasLayout>) -> Box<dyn Any>
Box<dyn Any>
.§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut dyn Any
.§fn into_reflect(self: Box<TextureAtlasLayout>) -> Box<dyn Reflect>
fn into_reflect(self: Box<TextureAtlasLayout>) -> Box<dyn Reflect>
§fn as_reflect(&self) -> &(dyn Reflect + 'static)
fn as_reflect(&self) -> &(dyn Reflect + 'static)
§fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)
fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)
§fn clone_value(&self) -> Box<dyn Reflect>
fn clone_value(&self) -> Box<dyn Reflect>
Reflect
trait object. Read more§fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>
fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>
§fn apply(&mut self, value: &(dyn Reflect + 'static))
fn apply(&mut self, value: &(dyn Reflect + 'static))
§fn reflect_kind(&self) -> ReflectKind
fn reflect_kind(&self) -> ReflectKind
§fn reflect_ref(&self) -> ReflectRef<'_>
fn reflect_ref(&self) -> ReflectRef<'_>
§fn reflect_mut(&mut self) -> ReflectMut<'_>
fn reflect_mut(&mut self) -> ReflectMut<'_>
§fn reflect_owned(self: Box<TextureAtlasLayout>) -> ReflectOwned
fn reflect_owned(self: Box<TextureAtlasLayout>) -> ReflectOwned
§fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>
fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>
§fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>
fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>
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fn reflect_hash(&self) -> Option<u64>
§fn serializable(&self) -> Option<Serializable<'_>>
fn serializable(&self) -> Option<Serializable<'_>>
§fn is_dynamic(&self) -> bool
fn is_dynamic(&self) -> bool
§impl Struct for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
impl Struct for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
§fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>
fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>
name
as a &dyn Reflect
.§fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>
fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>
name
as a
&mut dyn Reflect
.§fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>
fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>
index
as a
&dyn Reflect
.§fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>
fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>
index
as a &mut dyn Reflect
.§fn iter_fields(&self) -> FieldIter<'_> ⓘ
fn iter_fields(&self) -> FieldIter<'_> ⓘ
§fn clone_dynamic(&self) -> DynamicStruct
fn clone_dynamic(&self) -> DynamicStruct
DynamicStruct
.§impl TypePath for TextureAtlasLayout
impl TypePath for TextureAtlasLayout
§fn short_type_path() -> &'static str
fn short_type_path() -> &'static str
§fn type_ident() -> Option<&'static str>
fn type_ident() -> Option<&'static str>
§fn crate_name() -> Option<&'static str>
fn crate_name() -> Option<&'static str>
§impl Typed for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
impl Typed for TextureAtlasLayoutwhere
TextureAtlasLayout: Any + Send + Sync,
Vec2: FromReflect + TypePath,
Vec<Rect>: FromReflect + TypePath,
Option<HashMap<AssetId<Image>, usize>>: FromReflect + TypePath,
§impl VisitAssetDependencies for TextureAtlasLayout
impl VisitAssetDependencies for TextureAtlasLayout
fn visit_dependencies(&self, visit: &mut impl FnMut(UntypedAssetId))
impl Asset for TextureAtlasLayout
Auto Trait Implementations§
impl RefUnwindSafe for TextureAtlasLayout
impl Send for TextureAtlasLayout
impl Sync for TextureAtlasLayout
impl Unpin for TextureAtlasLayout
impl UnwindSafe for TextureAtlasLayout
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§impl<T, U> AsBindGroupShaderType<U> for T
impl<T, U> AsBindGroupShaderType<U> for T
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fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U
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. When used in AsBindGroup
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impl<A> AssetContainer for Awhere
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fn insert(self: Box<A>, id: UntypedAssetId, world: &mut World)
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T: ?Sized,
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T: ?Sized,
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