Port the introduction's naming and clock screens

A new game now runs NewGame's InitGender and OakSpeech natively before
the bedroom: Boy or Girl, InitClock's hour and minute steppers with
their YES/NO confirmations, Oak's speech with Wooper, and NamePlayer's
preset names or naming field (a blank name takes CHRIS or KRIS). Texts,
menus and time strings come from a new INTRO profile table verified by
check:reference; Oak's and the player's pictures decode from
TrainerPicPointers, ChrisPic/KrisPic and TrainerPalettes.

The chosen time is kept as a minute offset from the device clock, which
time of day, the weekday, NPC hours and the daily reset now read. The
intro runs only when nothing is saved; a save made during it starts it
again. Saves gain intro and clock.minuteOffset, migrated by absence. The
shell's name and character fields are gone. Intentional change: the
steppers start at the device time rather than 10:00.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/game/rom/pokemon.ts

@@ -1,6 +1,12 @@
 import { RomReader } from "./reader";
 import { decompress } from "./lz";
-import { NUM_ITEMS, NUM_POKEMON, SYMBOLS } from "./profile";
+import {
+  INTRO,
+  NUM_ITEMS,
+  NUM_POKEMON,
+  NUM_TRAINER_CLASSES,
+  SYMBOLS,
+} from "./profile";
 import { defaultTextContext, readString } from "../scripts/text";
 import type { Palette } from "../world/types";
 
@@ -254,8 +260,44 @@ export class PokemonData {
   /** Normal colors from PokemonPalettes, between white and black. */
   palette(species: number, shiny = false): Palette {
     this.checkSpecies(species);
+    return this.middleColors(
+      SYMBOLS.pokemonPalettes + species * 8 + (shiny ? 4 : 0),
+    );
+  }
+  /** A trainer class's front picture (GetTrainerPic): 7x7 tiles, column
+   * by column. */
+  trainerPic(classId: number): Uint8Array {
+    if (
+      !Number.isInteger(classId) ||
+      classId < 1 ||
+      classId > NUM_TRAINER_CLASSES
+    )
+      throw new Error("Unknown trainer class.");
     const r = this.reader,
-      p = SYMBOLS.pokemonPalettes + species * 8 + (shiny ? 4 : 0);
+      entry = INTRO.TrainerPicPointers + (classId - 1) * 3;
+    const pics1 = r.byte(SYMBOLS.picsBanks);
+    const bank = r.byte(SYMBOLS.picsBanks + r.byte(entry) - (pics1 - 0x36));
+    const tiles = decompress(r, r.address(bank, r.word(entry + 1)), 0x1000);
+    if (tiles.length < 49 * 16) throw new Error("Picture data is truncated.");
+    return tiles.slice(0, 49 * 16);
+  }
+  /** DrawIntroPlayerPic's uncompressed ChrisPic or KrisPic. */
+  playerPic(female: boolean): Uint8Array {
+    return this.reader.slice(female ? INTRO.KrisPic : INTRO.ChrisPic, 49 * 16);
+  }
+  /** TrainerPalettes, by class: CHRIS is 0 and KRIS shares class 1. */
+  trainerPalette(classId: number): Palette {
+    if (
+      !Number.isInteger(classId) ||
+      classId < 0 ||
+      classId > NUM_TRAINER_CLASSES
+    )
+      throw new Error("Unknown trainer class.");
+    return this.middleColors(INTRO.TrainerPalettes + classId * 4);
+  }
+  /** Two stored colors between white and black. */
+  private middleColors(p: number): Palette {
+    const r = this.reader;
     const color = (value: number) =>
       [
         Math.round(((value & 31) * 255) / 31),

src/game/rom/profile.ts

@@ -281,6 +281,44 @@ export const OVERWORLD = {
   MansionPalette2: 0x496fe,
 } as const;
 
+/** A new game's introduction (engine/menus/intro_menu.asm NewGame):
+ * InitGender, OakSpeech with InitClock and NamePlayer, and the pictures
+ * they show, keyed by their PRET labels for \`npm run check:reference\`. */
+export const INTRO = {
+  TrainerPicPointers: 0x128000,
+  TrainerPalettes: 0xb0ce,
+  ChrisPic: 0x888a9,
+  KrisPic: 0x88bb9,
+  _AreYouABoyOrAreYouAGirlText: 0x1c0ca3,
+  "InitGender.MenuData": 0x48e04,
+  _OakText1: 0x1c1d35,
+  _OakText2: 0x1c1da4,
+  _OakText4: 0x1c1de5,
+  _OakText5: 0x1c1e51,
+  _OakText6: 0x1c4000,
+  _OakText7: 0x1c4026,
+  _OakTimeWokeUpText: 0x1bc29c,
+  _OakTimeWhatTimeIsItText: 0x1bc2eb,
+  _OakTimeWhatHoursText: 0x1bc2fd,
+  _OakTimeHoursQuestionMarkText: 0x1bc305,
+  _OakTimeHowManyMinutesText: 0x1bc308,
+  _OakTimeWhoaMinutesText: 0x1bc31b,
+  _OakTimeMinutesQuestionMarkText: 0x1bc323,
+  _OakTimeOversleptText: 0x1bc326,
+  _OakTimeYikesText: 0x1bc336,
+  _OakTimeSoDarkText: 0x1bc34f,
+  "ChrisNameMenuHeader.MaleNames": 0x882be,
+  "KrisNameMenuHeader.FemaleNames": 0x882ee,
+  "NamingScreenJumptable.PlayerNameString": 0x117a3,
+  "NamePlayer.Chris": 0x60d3,
+  "NamePlayer.Kris": 0x60de,
+  String_oclock: 0x9087e,
+  String_min: 0x9089f,
+  "GetTimeOfDayString.nite_string": 0x90b71,
+  "GetTimeOfDayString.morn_string": 0x90b76,
+  "GetTimeOfDayString.day_string": 0x90b7b,
+} as const;
+
 /** Pokémon Center and house PCs, Bill's PC and Oak's PC: routines, menu
  * data, strings and texts, keyed by their PRET labels so that
  * \`npm run check:reference\` can verify each address by name. */