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use std::{collections::BTreeMap, path::PathBuf};
use bevy::{ecs::world::CommandQueue, prelude::*, tasks::Task};
use multi_key_map::MultiKeyMap;
use occule::Codec;
use crate::payload::DirworldEntityPayload;
/// Root directory of the world
#[derive(Resource, Deref, DerefMut, Default)]
pub struct DirworldRootDir(pub Option<PathBuf>);
/// Current directory of the world
#[derive(Resource, Default)]
pub struct DirworldCurrentDir{
/// Path of current directory
pub path: PathBuf,
/// Payload (contents of .door file) in current directory, if present
pub payload: Option<DirworldEntityPayload>,
}
/// Running background tasks
#[derive(Default, Resource, Deref, DerefMut)]
pub struct DirworldTasks(pub BTreeMap<String, Task<Option<CommandQueue>>>);
/// A map between file types and their corresponding preload/spawn callback observers
#[derive(Debug, Default, Resource, Deref, DerefMut)]
pub struct DirworldObservers(pub MultiKeyMap<EntryType, Entity>);
/// A map between file extensions and their corresponding [`Codec`]s
#[derive(Default, Resource, Deref, DerefMut)]
pub struct DirworldCodecs(pub MultiKeyMap<String, Box<dyn Codec + Send + Sync>>);
/// Type of a filesystem entry
#[derive(Debug, PartialEq, Eq, Hash)]
pub enum EntryType {
/// A file with an optional extension
File(Option<String>),
/// A folder
Folder,
}
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