Fixed config seed

Author: ELginas

feather/server/src/main.rs

@@ -1,4 +1,10 @@
-use std::{cell::RefCell, rc::Rc, sync::Arc};
+use std::{
+    cell::RefCell,
+    collections::hash_map::DefaultHasher,
+    hash::{Hash, Hasher},
+    rc::Rc,
+    sync::Arc,
+};
 
 use anyhow::Context;
 use base::anvil::level::SuperflatGeneratorOptions;
@@ -64,7 +70,11 @@ fn init_world_source(game: &mut Game, config: &Config) {
     // world otherwise. This is a placeholder:
     // we don't have proper world generation yet.
 
-    let seed = 42; // FIXME: load from the level file
+    let seed = config.world.seed.parse().unwrap_or_else(|_| {
+        let mut hasher = DefaultHasher::new();
+        config.world.seed.hash(&mut hasher);
+        hasher.finish()
+    });
 
     let generator: Arc<dyn WorldGenerator> = match &config.world.generator[..] {
         "flat" => Arc::new(SuperflatWorldGenerator::new(