Open Route 31, Violet City and Sprout Tower (#31)

Enable Route 31 and its gate, Dark Cave's Violet entrance, Violet City with its buildings and Sprout Tower. Port the script commands they use: gettrainername, askforphonenumber (with AddPhoneNumber's room for Mom and Elm; addcellnum now reports failure as the original does), checkpokemail, loadmenu/_2dmenu/closewindow, giveegg and trade (NPCTrade, with wTradeFlags saved).

Eggs keep their species with an egg flag, as wPartySpecies does. The pack's TM/HM counts receive, check and toss TMs and HMs, which are named TM01-HM07.

The playthrough continues through Route 31 (with Mom's call), Violet City and Sprout Tower to Elder Li's Flash.

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

src/game/party/pokemon.ts

@@ -27,9 +27,29 @@ export interface PartyMon {
   stats: [number, number, number, number, number, number];
   /** sPartyMail's entry while the Pokémon holds MAIL. */
   mail?: Mail;
+  /** An Egg: wPartySpecies holds EGG for this slot. `species` is what
+   * hatches, `happiness` counts the remaining egg cycles and the nickname
+   * is "EGG". */
+  egg?: true;
 }
 
 export const PARTY_LENGTH = 6;
+
+const STATUS_NAMES: [number, string][] = [
+  [0x08, " PSN"],
+  [0x10, " BRN"],
+  [0x20, " FRZ"],
+  [0x40, " PAR"],
+];
+function statusName(status: number) {
+  if (status & 7) return " SLP";
+  return STATUS_NAMES.find(([bit]) => status & bit)?.[1] ?? "";
+}
+/** A party menu row's level, HP and status (or FNT); an Egg shows none. */
+export function partyMonDetails(mon: PartyMon): string {
+  if (mon.egg) return "";
+  return `:L${mon.level} HP ${mon.hp}/${mon.stats[0]}${mon.hp ? statusName(mon.status) : " FNT"}`;
+}
 /** Characters a nickname can hold: the naming screen's letters and
  * symbols, plus the digits and apostrophes of default species names. */
 export const NICKNAME_PATTERN = /^[A-Za-z0-9 ()":;[\]?!♂♀/.,×'é-]{1,10}$/u;
@@ -215,7 +235,8 @@ export function validBoxFields(value: unknown): boolean {
       integer(mon.happiness, 0, 255) &&
       integer(mon.pokerus, 0, 255) &&
       integer(mon.caughtData, 0, 0xffff) &&
-      integer(mon.level, 1, 100)
+      integer(mon.level, 1, 100) &&
+      (mon.egg === undefined || mon.egg === true)
     );
   } catch {
     return false;