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use std::path::{PathBuf};
use std::fs;
use json5;
use serde::{Serialize, Deserialize};
use crate::{
RoomId,
roomtemplate::RoomTemplate,
Result,
aerr,
Encyclopedia
};
pub struct WorldLoader {
pub directory: PathBuf
}
impl WorldLoader {
pub fn new(path: PathBuf) -> Self {
Self {
directory: path
}
}
pub fn load_world_meta(&self) -> Result<WorldMeta> {
let path = self.directory.join("world.json");
let text = fs::read_to_string(path)?;
let meta = json5::from_str(&text)?;
Ok(meta)
}
pub fn load_room(&self, id: RoomId) -> Result<RoomTemplate> {
let fname = id.to_string().splitn(2, '+').next().unwrap().to_string() + ".json";
let path = self.directory.join("maps").join(fname);
let text = fs::read_to_string(path)?;
let template = json5::from_str(&text)?;
Ok(template)
}
pub fn load_encyclopedia(&self, name: &str) -> Result<Encyclopedia> {
let fname: String = name.to_string() + ".json";
let encyclopedia: Encyclopedia =
json5::from_str(
&fs::read_to_string(
self.directory
.join("encyclopediae")
.join(&fname)
)?
).map_err(|e|aerr!("failed to load encyclopedia {}: {}", name, e))?;
encyclopedia.validate()?;
Ok(encyclopedia)
}
}
#[derive(Debug, PartialEq, Eq, Clone, Serialize, Deserialize)]
pub struct WorldMeta {
pub encyclopediae: Vec<String>,
pub default_room: RoomId
}
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