basic state switching from loading to running to editing

state/states/PausedState.ts

@@ -0,0 +1,30 @@
+import { State } from "../machine.ts";
+import { States } from "./index.ts";
+
+export class PausedState extends State<States> {
+  override name: States = States.PAUSED;
+  override validTransitions: Set<States> = new Set([
+    States.LOAD,
+    States.RUNNING,
+    States.EDIT_TRACK,
+    States.EDIT_TRAIN,
+  ]);
+  override update(dt: number): void {
+    throw new Error("Method not implemented.");
+    // TODO
+    // Handle input
+    // Draw ui
+  }
+  override start(): void {
+    throw new Error("Method not implemented.");
+    // TODO
+    // Save tracks to cache
+    // Save trains to cache
+    // Save resources to cache
+  }
+  override stop(): void {
+    throw new Error("Method not implemented.");
+    // TODO
+    // Do nothing
+  }
+}