refactor: clean map gameplay architecture

src/data/game/gameStateConfig.ts

@@ -0,0 +1,33 @@
+import type { GameStep, MainGameState } from "@/types/game";
+
+export const GAME_STEPS: readonly GameStep[] = [
+  "intro",
+  "start-intro",
+  "naming",
+  "bienvenue",
+  "star-move",
+  "mission2",
+  "searching",
+  "helped",
+  "manipulation",
+  "outOfFabrik",
+];
+
+export const MAIN_GAME_STATES: readonly MainGameState[] = [
+  "intro",
+  "ebike",
+  "pylon",
+  "farm",
+  "outro",
+] as const;
+
+const GAME_STEP_VALUES: ReadonlySet<string> = new Set(GAME_STEPS);
+const MAIN_GAME_STATE_VALUES: ReadonlySet<string> = new Set(MAIN_GAME_STATES);
+
+export function isGameStep(value: unknown): value is GameStep {
+  return typeof value === "string" && GAME_STEP_VALUES.has(value);
+}
+
+export function isMainGameState(value: unknown): value is MainGameState {
+  return typeof value === "string" && MAIN_GAME_STATE_VALUES.has(value);
+}