idz: Use sets for unlocks flags

src/idz/decoder/_bitmap.ts

@@ -1,12 +1,12 @@
-export function bitmap(buf: Buffer): number[] {
-  const result = new Array();
+export function bitmap<T extends number>(buf: Buffer): Set<T> {
+  const result = new Set<T>();
 
   for (let byteNo = 0; byteNo < buf.length; byteNo++) {
     const byte = buf.readUInt8(byteNo);
 
     for (let bitNo = 0; bitNo < 8; bitNo++) {
       if (byte & (1 << bitNo)) {
-        result.push(8 * byteNo + bitNo);
+        result.add((8 * byteNo + bitNo) as T);
       }
     }
   }

src/idz/decoder/saveProfile.ts

@@ -53,7 +53,7 @@ export function saveProfile(buf: Buffer): SaveProfileRequest {
     dpoint: buf.readUInt32LE(0x0464),
     mileage: buf.readUInt32LE(0x0008),
     title: buf.readUInt16LE(0x0040) as TitleCode,
-    titles: bitmap(buf.slice(0x0042, 0x00f6)) as TitleCode[],
+    titles: bitmap(buf.slice(0x0042, 0x00f6)),
     background: buf.readUInt8(0x0750) as BackgroundCode,
     coursePlays,
     missions: {

src/idz/decoder/saveStocker.ts

@@ -14,7 +14,7 @@ export function saveStocker(buf: Buffer): SaveStockerRequest {
     type: "save_stocker_req",
     profileId: buf.readUInt32LE(0x0004) as ExtId<Profile>,
 
-    backgrounds: bitmap(buf.slice(0x0008, 0x002c)) as BackgroundCode[],
+    backgrounds: bitmap(buf.slice(0x0008, 0x002c)),
     selectedCar: buf.readUInt16LE(0x009c) as CarSelector,
     chara: chara(buf.slice(0x009e, 0x00b2)),
   };

src/idz/encoder/_bitmap.ts

@@ -1,4 +1,4 @@
-export function bitmap(items: number[], nbytes: number): Buffer {
+export function bitmap(items: Set<number>, nbytes: number): Buffer {
   const buf = Buffer.alloc(nbytes);
 
   for (const item of items) {

src/idz/repo.ts

@@ -44,9 +44,9 @@ export interface FacetRepository<T> {
 }
 
 export interface FlagRepository<T extends number> {
-  loadAll(profileId: Model.ExtId<Model.Profile>): Promise<T[]>;
+  loadAll(profileId: Model.ExtId<Model.Profile>): Promise<Set<T>>;
 
-  saveAll(profileId: Model.ExtId<Model.Profile>, items: T[]): Promise<void>;
+  saveAll(profileId: Model.ExtId<Model.Profile>, items: Set<T>): Promise<void>;
 }
 
 export interface ProfileRepository {

src/idz/request/saveProfile.ts

@@ -16,7 +16,7 @@ export interface SaveProfileRequest {
   dpoint: number;
   mileage: number;
   title: TitleCode;
-  titles: TitleCode[];
+  titles: Set<TitleCode>;
   background: BackgroundCode;
   coursePlays: Map<CourseNo, number>;
   missions: MissionState;

src/idz/request/saveStocker.ts

@@ -7,6 +7,6 @@ export interface SaveStockerRequest {
   type: "save_stocker_req";
   profileId: ExtId<Profile>;
   selectedCar: CarSelector;
-  backgrounds: BackgroundCode[];
+  backgrounds: Set<BackgroundCode>;
   chara: Chara;
 }

src/idz/response/loadProfile2.ts

@@ -21,7 +21,7 @@ export interface LoadProfileResponse2 {
   teamId?: number;
   settings: Settings;
   chara: Chara;
-  titles: TitleCode[];
+  titles: Set<TitleCode>;
   coursePlays: Map<number, number>;
   missions: MissionState;
   timeAttack: TimeAttackScore[];

src/idz/response/loadStocker.ts

@@ -1,5 +1,7 @@
+import { BackgroundCode } from "../model/base";
+
 export interface LoadStockerResponse {
   type: "load_stocker_res";
   status: number;
-  backgrounds: number[];
+  backgrounds: Set<BackgroundCode>;
 }