feat: build deterministic freeway and Lumbridge EV v2

src/engine/scene.ts

@@ -52,7 +52,7 @@ import type {
   VehicleActionSnapshot,
   VehicleControllerState,
 } from "../transport/vehicleController.ts";
-import { createBridges, createRoads } from "./structures.ts";
+import { createBridges, createFreewayWorld, createRoads } from "./structures.ts";
 import { createShorePlates, createTerrain, createWater, paletteFor } from "./terrain.ts";
 import type {
   Chapter,
@@ -355,7 +355,9 @@ export async function createScene(
   scene.add(createWater(world));
   scene.add(createShorePlates(world));
   scene.add(createTerrain(world));
-  scene.add(createRoads(world));
+  scene.add(options.roadTraffic
+    ? createFreewayWorld(world, options.roadTraffic.pack)
+    : createRoads(world));
   const buildingReservations: BuildingReservation[] = [];
   for (const marker of options.markers ?? []) {
     const glyph = marker.glyph;