stop hardcoding default room and encyclopedia

3 files changed, 56 insertions, 19 deletions

diff --git a/src/main.rs b/src/main.rs
index 20e498d..261d678 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,8 +3,6 @@ use std::thread::sleep;
 use std::time::Duration;
 use std::path::PathBuf;
 use std::sync::{Arc, atomic::{AtomicBool, Ordering}};
-use std::fs;
-use serde_json;
 use structopt::StructOpt;
 
 mod server;
@@ -56,7 +54,7 @@ use self::{
 	server::address::Address,
 	persistence::FileStorage,
 	controls::Action,
-	worldloader::WorldLoader,
+	worldloader::{WorldLoader, WorldMeta},
 	world::World,
 	worldmessages::MessageCache
 };
@@ -84,25 +82,18 @@ fn main(){
 			.join("content/")
 	);
 	println!("content directory: {:?}", content_dir);
-	let loader = WorldLoader::new(content_dir.join("maps"));
-	let encyclopedia = Encyclopedia::from_json(
-		serde_json::from_str(
-			&fs::read_to_string(
-				content_dir
-					.join("encyclopediae")
-					.join("default_encyclopedia.json")
-			).expect("can not load default_encyclopedia.json")
-		).expect("default_encyclopedia is invalid json")
-	).expect("can not load encyclopedia from json");
-	encyclopedia.validate().expect("invalid encyclopedia");
+	let loader = WorldLoader::new(content_dir);
+	let WorldMeta{encyclopedia_name, default_room} = loader.load_world_meta().expect("Failed to load world meta information");
+	
+	let encyclopedia = loader.load_encyclopedia(&encyclopedia_name).expect("Failed to load encyclopedia");
 	
 	let save_dir = config.save_dir.unwrap_or(
 		FileStorage::default_save_dir().expect("couldn't find any save directory")
 	);
-	println!("save directory: {:?}", content_dir);
+	println!("save directory: {:?}", save_dir);
 	let storage = FileStorage::new(save_dir);
 
-	let mut world = World::new(encyclopedia, loader, Box::new(storage), RoomId::from_str("room"));
+	let mut world = World::new(encyclopedia, loader, Box::new(storage), default_room);
 	
 	let mut message_cache = MessageCache::default();
 	
diff --git a/src/roomtemplate.rs b/src/roomtemplate.rs
index c8d9918..d853b20 100644
--- a/src/roomtemplate.rs
+++ b/src/roomtemplate.rs
@@ -43,7 +43,6 @@ impl RoomTemplate {
 		let mut field = Vec::new();
 		field.resize_with(width * height, Vec::new);
 		let jsonfield: &Vec<Value> = jsonroom.get("field").ok_or(perr!("no field"))?.as_array().ok_or(perr!("field not an array"))?;
-		// todo: what if size doesn't match actual dimensions
 		for (y, row) in jsonfield.iter().take(height).enumerate() {
 			for (x, ch) in row.as_str().ok_or(perr!("field row not a string"))?.chars().take(width).enumerate() {
 				field[x + y * width] = mapping.get(&ch).ok_or(perr!("char not found in mapping"))?.clone();
diff --git a/src/worldloader.rs b/src/worldloader.rs
index 683a310..9389e58 100644
--- a/src/worldloader.rs
+++ b/src/worldloader.rs
@@ -6,7 +6,9 @@ use serde_json::Value;
 use crate::{
 	RoomId,
 	roomtemplate::RoomTemplate,
-	Result
+	Result,
+	aerr,
+	Encyclopedia
 };
 
 
@@ -21,12 +23,57 @@ impl WorldLoader {
 		}
 	}
 	
+	pub fn load_world_meta(&self) -> Result<WorldMeta> {
+		let path = self.directory.join("world.json");
+		let text = fs::read_to_string(path)?;
+		let json: Value = serde_json::from_str(&text)?;
+		let default_room = RoomId::from_str(
+			json
+				.get("default_room")
+				.ok_or(aerr!("world meta does not have default_room"))?
+				.as_str()
+				.ok_or(aerr!("world meta default_room is not a string"))?
+		);
+		let encyclopedia_name = 
+			json
+				.get("encyclopedia")
+				.ok_or(aerr!("world meta does not have encyclopedia"))?
+				.as_str()
+				.ok_or(aerr!("world meta encyclopedia is not a string"))?
+				.to_string();
+		Ok(WorldMeta{
+			default_room,
+			encyclopedia_name
+		})
+	}
+	
 	pub fn load_room(&self, id: RoomId) -> Result<RoomTemplate> {
 		let fname = id.name.splitn(2, '+').next().unwrap().to_string() + ".json";
-		let path = self.directory.join(fname);
+		let path = self.directory.join("maps").join(fname);
 		let text = fs::read_to_string(path)?;
 		let json: Value = serde_json::from_str(&text)?;
 		let template = RoomTemplate::from_json(&json)?;
 		Ok(template)
 	}
+	
+	pub fn load_encyclopedia(&self, name: &str) -> Result<Encyclopedia> {
+		let fname: String = name.to_string() + ".json";
+		let encyclopedia = Encyclopedia::from_json(
+			serde_json::from_str(
+				&fs::read_to_string(
+					self.directory
+						.join("encyclopediae")
+						.join(&fname)
+				)?
+			)?
+		)?;
+		encyclopedia.validate()?;
+		Ok(encyclopedia)
+	}
+}
+
+pub struct WorldMeta {
+	pub encyclopedia_name: String,
+	pub default_room: RoomId
 }
+