Implement main game as a mod

server/game/host_protocol.ts

@@ -1,7 +1,15 @@
+import type { ModData, ModListing } from "$/common/mod_loader.ts";
+
 // messages between server/main.ts (the host) and the game server worker
 
 export type HostToGame =
-	| { type: "init"; save: string | undefined; default_seed: string }
+	| {
+		type: "init";
+		save: string | undefined;
+		default_seed: string;
+		// in load order, with the scripts' code since the worker can't read files
+		mods: { listing: ModListing; data: ModData; server_code?: string; worldgen_code?: string }[];
+	}
 	| { type: "connect"; conn: number }
 	| { type: "message"; conn: number; data: string }
 	| { type: "disconnect"; conn: number }
@@ -10,6 +18,7 @@ export type HostToGame =
 
 export type GameToHost =
 	| { type: "ready"; seed: string }
+	| { type: "failed"; error: string }
 	| { type: "send"; conn: number; data: string }
 	| { type: "close"; conn: number }
 	| { type: "save"; data: string; final: boolean };