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use bevy_ecs::{Entity, FromResources, MapEntities};
use bevy_reflect::{Reflect, ReflectComponent, ReflectMapEntities};
use std::ops::{Deref, DerefMut};
#[derive(Debug, Copy, Clone, Eq, PartialEq, Reflect)]
#[reflect(Component, MapEntities)]
pub struct Parent(pub Entity);
impl FromResources for Parent {
fn from_resources(_resources: &bevy_ecs::Resources) -> Self {
Parent(Entity::new(u32::MAX))
}
}
impl MapEntities for Parent {
fn map_entities(
&mut self,
entity_map: &bevy_ecs::EntityMap,
) -> Result<(), bevy_ecs::MapEntitiesError> {
self.0 = entity_map.get(self.0)?;
Ok(())
}
}
impl Deref for Parent {
type Target = Entity;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl DerefMut for Parent {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.0
}
}
#[derive(Debug, Copy, Clone, Eq, PartialEq, Reflect)]
#[reflect(Component, MapEntities)]
pub struct PreviousParent(pub(crate) Entity);
impl MapEntities for PreviousParent {
fn map_entities(
&mut self,
entity_map: &bevy_ecs::EntityMap,
) -> Result<(), bevy_ecs::MapEntitiesError> {
self.0 = entity_map.get(self.0)?;
Ok(())
}
}
impl FromResources for PreviousParent {
fn from_resources(_resources: &bevy_ecs::Resources) -> Self {
PreviousParent(Entity::new(u32::MAX))
}
}