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use std::{
fs,
path::{Path, PathBuf},
};
use anyhow::{Context, Result};
use bevy::prelude::*;
use crate::events::DirworldNavigationEvent;
/// Configuration for Dirworld.
#[derive(Resource)]
pub struct DirworldConfig {
root: PathBuf,
}
impl DirworldConfig {
/// Construct a new dirworld config with the given root path. Will panic if the provided path
/// cannot be canonicalized.
// TODO: Don't panic? lol
pub fn new(root: PathBuf) -> Self {
Self {
root: fs::canonicalize(root).expect("Failed to canonicalize path!"),
}
}
///
pub fn root(&self) -> &PathBuf {
&self.root
}
}
/// Contains the dirworld state.
#[derive(Resource)]
pub struct Dirworld {
/// Current active directory.
pub path: PathBuf,
/// Entities local to the current room.
pub tracked_entities: Vec<Entity>,
}
impl FromWorld for Dirworld {
fn from_world(world: &mut World) -> Self {
let config = world.remove_resource::<DirworldConfig>().unwrap();
world.send_event(DirworldNavigationEvent::EnteredRoom {
path: config.root().clone(),
});
let result = Self {
path: config.root().clone(),
tracked_entities: vec![],
};
world.insert_resource(config);
result
}
}
impl Dirworld {
/// Move into a new room.
// TODO: Clear tracked entities?
// TODO: Make into command extension trait?
pub fn navigate_to(
&mut self,
path: PathBuf,
event_writer: &mut EventWriter<DirworldNavigationEvent>,
) -> Result<()> {
event_writer.send(DirworldNavigationEvent::LeftRoom {
path: self.path.clone(),
});
self.path = Path::new(&self.path)
.join(path)
.to_str()
.context("Path not valid UTF-8")?
.into();
event_writer.send(DirworldNavigationEvent::EnteredRoom {
path: self.path.clone(),
});
Ok(())
}
}
|
