Struct let_engine::Layer

pub struct Layer {
    pub root: Arc<Mutex<Node<Box<dyn GameObject>>>>,
    pub camera: Arc<Mutex<Option<Box<dyn CameraObject>>>>,
    /* private fields */
}

Fields

root: Arc<Mutex<Node<Box<dyn GameObject>>>>

camera: Arc<Mutex<Option<Box<dyn CameraObject>>>>

Implementations

impl Layer

pub fn new(root: Arc<Mutex<Node<Box<dyn GameObject>>>>) -> Self

pub fn set_camera<T: CameraObject + 'static>(&self, camera: T)

pub fn camera_position(&self) -> Vec2

Be careful! Don’t use this when the camera is already locked. Read from the locked camera instead.

pub fn camera_scaling(&self) -> CameraScaling

Be careful! Don’t use this when the camera is already locked. Read from the locked camera instead.

pub fn zoom(&self) -> f32

Be careful! Don’t use this when the camera is already locked. Read from the locked camera instead.

pub fn side_to_world(&self, direction: [f32; 2], dimensions: (f32, f32)) -> Vec2

Be careful! Don’t use this when the camera is locked.

pub fn contains_object(&self, object: &Box<dyn GameObject>) -> bool

pub fn update<T: GameObject + Clone + 'static>(&self, object: &T)

pub fn fetch(&self, id: usize) -> Object

pub fn add_object<T: GameObject + Clone + 'static>( &self, parent: Option<&Box<dyn GameObject>>, object: &mut T ) -> Result<(), NoParentError>

pub fn remove_object( &self, object: &Box<dyn GameObject> ) -> Result<(), NoObjectError>

pub fn move_to( &self, object: &Box<dyn GameObject>, index: usize ) -> Result<(), Box<dyn Error>>

pub fn move_down( &self, object: &Box<dyn GameObject> ) -> Result<(), Box<dyn Error>>

pub fn move_up( &self, object: &Box<dyn GameObject> ) -> Result<(), Box<dyn Error>>

pub fn move_to_bottom( &self, object: &Box<dyn GameObject> ) -> Result<(), NoObjectError>

pub fn move_to_top( &self, object: &Box<dyn GameObject> ) -> Result<(), NoObjectError>

pub fn children_count( &self, parent: &Box<dyn GameObject> ) -> Result<usize, NoObjectError>

Trait Implementations

impl Clone for Layer

fn clone(&self) -> Layer

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Hash for Layer

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Layer

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

This method tests for self and other values to be equal, and is used by ==.

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.

impl Eq for Layer