Struct Duplicate

pub struct Duplicate { /* private fields */ }

A Merger which clones entities from the source world into the destination, potentially performing data transformations in the process.

Implementations

impl Duplicate

pub fn new() -> Duplicate

Creates a new duplicate merger.

pub fn register_copy<T>(&mut self)

where T: Component + Copy,

Allows the merger to copy the given component into the destination world.

pub fn register_clone<T>(&mut self)

where T: Component + Clone,

Allows the merger to clone the given component into the destination world.

pub fn register_convert<Source, Target, F>(&mut self, convert: F)

where Source: Component, Target: Component, F: FnMut(&Source) -> Target + 'static,

Allows the merger to clone the given component into the destination world with a custom clone function.

pub fn register_convert_raw( &mut self, src_type: ComponentTypeId, dst_type: ComponentTypeId, constructor: fn() -> Box<dyn UnknownComponentStorage>, duplicate_fn: Box<dyn FnMut(Range<usize>, &Archetype, &(dyn UnknownComponentStorage + 'static), &mut ArchetypeWriter<'_>)>, )

Allows the merger to clone the given component into the destination world with a custom clone function.

Trait Implementations

impl Default for Duplicate

fn default() -> Duplicate

Returns the “default value” for a type.

impl Merger for Duplicate

fn convert_layout(&mut self, source_layout: EntityLayout) -> EntityLayout

Calculates the destination entity layout for the given source layout.

fn merge_archetype( &mut self, src_entity_range: Range<usize>, src_arch: &Archetype, src_components: &Components, dst: &mut ArchetypeWriter<'_>, )

Merges an archetype from the source world into the destination world.

fn prefers_new_archetype() -> bool

Indicates if the merger prefers to merge into a new empty archetype.

fn entity_map(&mut self) -> EntityRewrite

Indicates how the merger wishes entity IDs to be adjusted while cloning a world.

fn assign_id(&mut self, existing: Entity, allocator: &mut Allocate) -> Entity

Returns the ID to use in the destination world when cloning the given entity.