Files
Crystal/tests/start-menu.test.ts
Sébastien QUEROLandClaude Opus 5.5 7909302db1 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>
2026-10-03 16:24:29 +02:00

982 lines
34 KiB
TypeScript

import { describe, expect, it } from "vitest";
import { existsSync, readFileSync } from "node:fs";
import { CrystalAssets } from "../src/game/rom/assets";
import { GameWorld } from "../src/game/world/world";
import { calcStats, generatePartyMon, maxPP } from "../src/game/party/pokemon";
import { ENGINE_FLAGS } from "../src/game/rom/profile";
import { settle } from "./world-driver";
const romPath =
process.env.CRYSTAL_ROM_PATH ??
"Pokemon - Crystal Version (UE) (V1.1) [C][!].gbc";
const NEW_BARK_TOWN = "24:4",
PLAYERS_HOUSE = "24:6",
CYNDAQUIL = 155,
QUILAVA = 156,
PIDGEY = 16,
PIKACHU = 25,
RAICHU = 26;
const BICYCLE = 7,
COIN_CASE = 0x36,
ANTIDOTE = 9,
FULL_RESTORE = 0x0e,
POTION = 0x12,
THUNDERSTONE = 0x17,
HP_UP = 0x1a,
RARE_CANDY = 0x20,
REVIVE = 0x27,
PP_UP = 0x3e,
ETHER = 0x3f,
ELIXER = 0x41,
EVERSTONE = 0x70,
ENERGYPOWDER = 0x79,
LEFTOVERS = 0x92,
BERRY = 0xad;
const SOFTBOILED = 0x87;
const CUT = 0x0f,
GUST = 0x10,
SAND_ATTACK = 0x1c,
TACKLE = 0x21,
LEER = 0x2b,
SMOKESCREEN = 0x6c;
const POISONED = 0x08;
describe.skipIf(!existsSync(romPath))("the start menu", () => {
const assets = () => new CrystalAssets(new Uint8Array(readFileSync(romPath)));
/** Standing in New Bark Town (outdoors) with two Pokémon and a pack. */
function fixture(map = NEW_BARK_TOWN, x = 13, y = 7) {
const world = new GameWorld(
assets(),
() => new Date("2026-09-25T12:00:00"),
() => 0x42,
);
const data = world.assets.pokemon;
const mon = (species: number, level: number) =>
generatePartyMon(data, {
species,
level,
item: 0,
otId: world.playerId,
ot: "CHRIS",
dvs: 0x9abc,
caughtData: 0,
});
world.state.party = [mon(CYNDAQUIL, 8), mon(PIDGEY, 4)];
world.state.bag.items = [
{ item: POTION, quantity: 5 },
{ item: ANTIDOTE, quantity: 1 },
];
world.state.bag.keyItems = [BICYCLE];
world.state.scenes[NEW_BARK_TOWN] = 1;
world.restore({
...world.save(),
map,
x,
y,
direction: "down",
objects: [],
});
return world;
}
/** Acknowledge pages up to the next choice; returns the pages seen. */
function until(world: GameWorld) {
const pages: string[] = [];
for (let tick = 0; tick < 500; tick++) {
const dialogue = world.dialogue;
if (!dialogue) {
if (!world.busy) return pages;
world.tick();
continue;
}
const page = dialogue.pages[dialogue.index].replace(/\n/g, " ");
if (page && pages.at(-1) !== page) pages.push(page);
const last = dialogue.index === dialogue.pages.length - 1;
if (last && dialogue.choice) return pages;
if (last && dialogue.holdTicks !== undefined) world.tick();
else world.advanceDialogue();
}
throw new Error("No choice appeared.");
}
function menuItems(world: GameWorld) {
const choice = world.dialogue?.choice;
return choice?.kind === "menu" ? choice.items : [];
}
/** Choose the menu item matching `label` (the whole label, or a regex). */
function pick(world: GameWorld, label: string | RegExp) {
const items = menuItems(world);
const index = items.findIndex((item) =>
typeof label === "string" ? item === label : label.test(item),
);
expect(index, `${label} in ${items.join(", ")}`).toBeGreaterThanOrEqual(0);
world.choose(index);
return until(world);
}
/** Choose the pack entry for `item` in its pocket. */
function pickItem(world: GameWorld, item: number) {
const choice = world.dialogue?.choice;
if (choice?.kind !== "pack") throw new Error(`Expected the pack, got ${choice?.kind}`);
for (const [pocket, { entries }] of choice.pockets.entries()) {
const index = entries.findIndex((entry) => entry.item === item);
if (index >= 0) {
world.choosePackEntry(pocket, index);
return until(world);
}
}
throw new Error(`Item ${item} is not in the pack.`);
}
function open(world: GameWorld) {
expect(world.openStartMenu()).toBe(true);
return until(world);
}
/** B until every menu has closed. */
function close(world: GameWorld) {
for (let i = 0; i < 20 && world.busy; i++) {
if (world.dialogue?.choice) world.advanceDialogue();
until(world);
}
settle(world);
expect(world.diagnostic).toBe("");
}
it("lists the original items for the player's progress", () => {
const world = fixture();
open(world);
expect(menuItems(world)).toEqual([
"POKéMON",
"PACK",
"CHRIS",
"SAVE",
"OPTION",
"EXIT",
]);
const choice = world.dialogue?.choice;
expect(choice?.kind === "menu" && choice.details?.[1]).toBe("Contains items");
pick(world, "EXIT");
expect(world.busy).toBe(false);
world.state.flags.add(ENGINE_FLAGS.pokedex);
world.state.flags.add(ENGINE_FLAGS.pokegear);
open(world);
expect(menuItems(world)).toEqual([
"POKéDEX",
"POKéMON",
"PACK",
"POKéGEAR",
"CHRIS",
"SAVE",
"OPTION",
"EXIT",
]);
// The cursor stays on the last choice; B leaves the Pokégear's clock.
expect(pick(world, "POKéGEAR")).toEqual(["Press any button to exit."]);
expect(world.dialogue?.choice?.kind).toBe("pokegear");
world.advanceDialogue();
until(world);
expect(world.dialogue?.choice?.kind).toBe("menu");
close(world);
open(world);
const reopened = world.dialogue?.choice;
expect(reopened?.kind === "menu" && reopened.items[reopened.selected]).toBe(
"POKéGEAR",
);
close(world);
});
it("opens only while the player stands still", () => {
const world = fixture();
world.tick("left");
expect(world.activity).toBe("walking");
expect(world.openStartMenu()).toBe(false);
});
it("shows the Pokémon submenu with field moves first", () => {
const world = fixture();
world.state.party[1].moves = [TACKLE, CUT, 0, 0];
open(world);
expect(pick(world, "POKéMON")).toEqual(["Choose a POKéMON."]);
expect(menuItems(world)).toEqual(["CYNDAQUIL", "PIDGEY"]);
pick(world, "CYNDAQUIL");
expect(menuItems(world)).toEqual(["STATS", "SWITCH", "MOVE", "ITEM", "CANCEL"]);
pick(world, "CANCEL");
pick(world, "PIDGEY");
expect(menuItems(world)).toEqual(["CUT", "STATS", "SWITCH", "MOVE", "ITEM", "CANCEL"]);
// CutFunction's CheckBadge, then the party menu again.
expect(pick(world, "CUT")).toEqual([
"Sorry! A new BADGE is required.",
"Choose a POKéMON.",
]);
// STATS shows the stats screen, and B returns to the party.
pick(world, "PIDGEY");
world.choose(menuItems(world).indexOf("STATS"));
expect(world.statsScreen?.species).toBe(PIDGEY);
world.advanceDialogue();
expect(until(world)).toEqual(["Choose a POKéMON."]);
expect(world.statsScreen).toBeUndefined();
close(world);
});
it("shares HP with Softboiled, which needs more than a fifth of it", () => {
const world = fixture();
const data = world.assets.pokemon;
const chansey = generatePartyMon(data, {
species: 113,
level: 20,
item: 0,
otId: world.playerId,
ot: "CHRIS",
dvs: 0x9abc,
caughtData: 0,
});
chansey.moves = [SOFTBOILED, 0, 0, 0];
world.state.party.push(chansey);
world.state.party[0].hp = 3;
const fifth = Math.floor(chansey.stats[0] / 5);
open(world);
pick(world, "POKéMON");
pick(world, "CHANSEY");
expect(pick(world, "SOFTBOILED")).toEqual(["Use on which POKéMON?"]);
// Not on itself, and not on a Pokémon at full HP.
expect(pick(world, "CHANSEY")).toEqual([
"That can't be used on this POKéMON.",
"Use on which POKéMON?",
]);
expect(pick(world, "PIDGEY")[0]).toBe("That can't be used on this POKéMON.");
expect(pick(world, "CYNDAQUIL")).toEqual([
`CYNDAQUIL recovered ${Math.min(fifth, world.liveState.party[0].stats[0] - 3)}HP!`,
"Choose a POKéMON.",
]);
// The cursor returns to the user.
const party = world.dialogue?.choice;
expect(party?.kind === "menu" && party.selected).toBe(2);
close(world);
expect(world.state.party[2].hp).toBe(chansey.stats[0] - fifth);
expect(world.state.party[0].hp).toBe(
Math.min(world.state.party[0].stats[0], 3 + fifth),
);
world.state.party[2].hp = fifth;
open(world);
pick(world, "POKéMON");
pick(world, "CHANSEY");
expect(pick(world, "SOFTBOILED")).toEqual([
"Not enough HP!",
"Choose a POKéMON.",
]);
close(world);
});
it("switches two Pokémon, and B cancels the move", () => {
const world = fixture();
open(world);
pick(world, "POKéMON");
pick(world, "CYNDAQUIL");
expect(pick(world, "SWITCH")).toEqual(["Move to where?"]);
expect(menuItems(world)).toEqual(["▷CYNDAQUIL", "PIDGEY"]);
world.advanceDialogue();
until(world);
expect(menuItems(world)).toEqual(["CYNDAQUIL", "PIDGEY"]);
pick(world, "CYNDAQUIL");
pick(world, "SWITCH");
pick(world, "PIDGEY");
expect(menuItems(world)).toEqual(["PIDGEY", "CYNDAQUIL"]);
// Nothing commits until the menu closes.
expect(world.save().party?.[0].species).toBe(CYNDAQUIL);
close(world);
expect(world.state.party.map((mon) => mon.species)).toEqual([PIDGEY, CYNDAQUIL]);
// wPartyMenuCursor stays on the row chosen last, in the next menu too.
open(world);
pick(world, "POKéMON");
const party = world.dialogue?.choice;
expect(party?.kind === "menu" && party.selected).toBe(1);
close(world);
});
it("reorders moves with their PP", () => {
const world = fixture();
const mon = world.state.party[0];
expect(mon.moves).toEqual([TACKLE, LEER, SMOKESCREEN, 0]);
mon.pp[0] = 30;
open(world);
pick(world, "POKéMON");
pick(world, "CYNDAQUIL");
expect(pick(world, "MOVE")).toEqual(["CYNDAQUIL :L8"]);
expect(menuItems(world)).toEqual(["TACKLE", "LEER", "SMOKESCREEN"]);
expect(pick(world, "TACKLE")).toEqual(["Where?"]);
// B while choosing where cancels only the move being moved.
world.advanceDialogue();
until(world);
pick(world, "TACKLE");
pick(world, "SMOKESCREEN");
expect(menuItems(world)).toEqual(["SMOKESCREEN", "LEER", "TACKLE"]);
close(world);
expect(world.state.party[0].moves).toEqual([SMOKESCREEN, LEER, TACKLE, 0]);
expect(world.state.party[0].pp).toEqual([20, 30, 30, 0]);
});
it("shows the other party members' moves with left and right, skipping Eggs", () => {
const world = fixture();
const party = world.state.party;
party.push({ ...structuredClone(party[1]), egg: true, nickname: "EGG" });
open(world);
pick(world, "POKéMON");
pick(world, "CYNDAQUIL");
expect(pick(world, "MOVE")).toEqual(["CYNDAQUIL :L8"]);
const heading = (direction: "left" | "right") => {
world.moveCursor(direction);
return until(world)[0];
};
expect(heading("right")).toBe("PIDGEY :L4");
expect(menuItems(world)).toEqual(["TACKLE"]);
// Past the last Pokémon that is not an Egg, .cycle_right comes back.
expect(heading("right")).toBe("PIDGEY :L4");
expect(heading("left")).toBe("CYNDAQUIL :L8");
expect(heading("left")).toBe("CYNDAQUIL :L8");
// Not while a move is being moved.
pick(world, "LEER");
world.moveCursor("right");
expect(world.dialogue?.pages[0]).toBe("Where?");
world.advanceDialogue();
until(world);
expect(heading("right")).toBe("PIDGEY :L4");
// B returns to the party menu, on the Pokémon shown last.
world.advanceDialogue();
until(world);
const menu = world.dialogue?.choice;
expect(menu?.kind === "menu" && menu.items[menu.selected]).toBe("PIDGEY");
close(world);
});
it("moves items within a pocket with Select, merging stacks of the same item", () => {
const world = fixture();
world.state.bag.items = [
{ item: POTION, quantity: 5 },
{ item: ANTIDOTE, quantity: 1 },
{ item: ETHER, quantity: 1 },
{ item: POTION, quantity: 98 },
];
world.state.bag.keyItems = [BICYCLE, COIN_CASE];
open(world);
pick(world, "PACK");
const pack = () => {
const choice = world.dialogue?.choice;
if (choice?.kind !== "pack") throw new Error(`Expected the pack, got ${choice?.kind}`);
return choice;
};
const items = () => world.state.bag.items.map((slot) => [slot.item, slot.quantity]);
// Select marks the Potions and asks where; the pocket stays put.
world.useSelect();
until(world);
expect([pack().switching, pack().prompt]).toEqual([
0,
"Where should this\nbe moved to?",
]);
world.moveCursor("right");
expect(pack().pocket).toBe(0);
// A (or Select) on another row moves them there.
world.choosePackEntry(0, 2);
until(world);
expect(pack().switching).toBeUndefined();
expect(pack().selected).toBe(2);
// Nothing commits until the menu closes.
expect(world.save().bag.items[0].item).toBe(POTION);
world.useSelect();
until(world);
world.choosePackEntry(0, 3, true);
until(world);
// 5 + 98: the destination fills to 99 and 4 stay behind.
world.useSelect();
until(world);
world.advanceDialogue(); // B ends the move, still in the pack
until(world);
expect([pack().kind, pack().switching]).toEqual(["pack", undefined]);
world.choosePackEntry(0, 1, true);
until(world);
world.choosePackEntry(0, 1, true); // onto itself: nothing moves
until(world);
world.moveCursor("right");
world.moveCursor("right");
world.choosePackEntry(2, 1, true);
until(world);
world.choosePackEntry(2, 0, true);
until(world);
close(world);
expect(items()).toEqual([
[ANTIDOTE, 1],
[ETHER, 1],
[POTION, 4],
[POTION, 99],
]);
expect(world.state.bag.keyItems).toEqual([COIN_CASE, BICYCLE]);
// Two stacks that fit merge into one; a full stack never merges.
world.state.bag.items = [
{ item: POTION, quantity: 2 },
{ item: POTION, quantity: 3 },
{ item: ETHER, quantity: 99 },
{ item: ETHER, quantity: 1 },
];
open(world);
pick(world, "PACK");
world.choosePackEntry(0, 0, true);
until(world);
world.choosePackEntry(0, 1, true);
until(world);
world.choosePackEntry(0, 2, true);
until(world);
world.choosePackEntry(0, 1, true);
until(world);
close(world);
expect(items()).toEqual([
[POTION, 5],
[ETHER, 1],
[ETHER, 99],
]);
});
it("does not move items in the pack that GIVE opens", () => {
const world = fixture();
open(world);
pick(world, "POKéMON");
pick(world, "CYNDAQUIL");
pick(world, "ITEM");
pick(world, "GIVE");
world.useSelect();
until(world);
const choice = world.dialogue?.choice;
expect(choice?.kind).toBe("pack");
expect(choice?.kind === "pack" && choice.switching).toBeUndefined();
close(world);
expect(world.state.bag.items.map((slot) => slot.item)).toEqual([POTION, ANTIDOTE]);
});
it("gives, swaps and takes held items", () => {
const world = fixture();
world.state.bag.items.push({ item: LEFTOVERS, quantity: 1 });
open(world);
pick(world, "POKéMON");
pick(world, "CYNDAQUIL");
pick(world, "ITEM");
expect(menuItems(world)).toEqual(["GIVE", "TAKE"]);
expect(pick(world, "TAKE")).toEqual([
"CYNDAQUIL isn't holding anything.",
"Choose a POKéMON.",
]);
pick(world, "CYNDAQUIL");
pick(world, "ITEM");
pick(world, "GIVE");
// Key items cannot be held; the pack stays open.
expect(pickItem(world, BICYCLE)).toEqual(["This item can't be held."]);
expect(pickItem(world, POTION)).toEqual([
"Made CYNDAQUIL hold POTION.",
"Choose a POKéMON.",
]);
pick(world, "CYNDAQUIL");
pick(world, "ITEM");
pick(world, "GIVE");
expect(pickItem(world, LEFTOVERS)).toEqual([
"CYNDAQUIL is already holding",
"POTION. Switch items?",
]);
world.choose(1);
expect(until(world)).toEqual([
"Took CYNDAQUIL's POTION and",
"made it hold LEFTOVERS.",
"Choose a POKéMON.",
]);
close(world);
expect(world.state.party[0].item).toBe(LEFTOVERS);
expect(world.state.bag.items).toEqual([
{ item: POTION, quantity: 5 },
{ item: ANTIDOTE, quantity: 1 },
]);
open(world);
pick(world, "POKéMON");
pick(world, "CYNDAQUIL");
pick(world, "ITEM");
expect(pick(world, "TAKE")[0]).toBe("Took LEFTOVERS from CYNDAQUIL.");
close(world);
expect(world.state.party[0].item).toBe(0);
expect(world.state.bag.items.at(-1)).toEqual({ item: LEFTOVERS, quantity: 1 });
});
it("keeps a held item when the pack is full", () => {
const world = fixture();
world.state.party[0].item = LEFTOVERS;
world.state.bag.items = Array.from({ length: 20 }, (_, i) => ({
item: [POTION, ANTIDOTE, BERRY][i % 3],
quantity: 99,
}));
open(world);
pick(world, "POKéMON");
pick(world, "CYNDAQUIL");
pick(world, "ITEM");
expect(pick(world, "TAKE")[0]).toBe("Item storage space full.");
close(world);
expect(world.state.party[0].item).toBe(LEFTOVERS);
});
it("uses healing items from the pack on the party", () => {
const world = fixture();
const [cyndaquil, pidgey] = world.state.party;
cyndaquil.hp = 5;
pidgey.status = POISONED;
world.state.bag.items.push(
{ item: REVIVE, quantity: 1 },
{ item: FULL_RESTORE, quantity: 1 },
);
open(world);
pick(world, "PACK");
// The pack opens on the Items pocket, with the ROM's pocket names.
const pack = world.dialogue?.choice;
expect(
pack?.kind === "pack" && [pack.pocket, pack.pockets.map((pocket) => pocket.name)],
).toEqual([0, ["ITEM POCKET", "BALL POCKET", "KEY POCKET", "TM POCKET"]]);
pickItem(world, POTION);
expect(menuItems(world)).toEqual(["USE", "GIVE", "TOSS", "QUIT"]);
expect(pick(world, "USE")).toEqual(["Use on which POKéMON?"]);
// Full HP: no effect, the Potion stays and the pack is shown again.
expect(pick(world, "PIDGEY")).toEqual(["It won't have any effect."]);
expect(world.dialogue?.choice?.kind).toBe("pack");
pickItem(world, POTION);
pick(world, "USE");
expect(pick(world, "CYNDAQUIL")).toEqual(["CYNDAQUIL recovered 20HP!"]);
pickItem(world, ANTIDOTE);
pick(world, "USE");
expect(pick(world, "PIDGEY")).toEqual(["PIDGEY's cured of poison."]);
// A Revive on a Pokémon that has not fainted has no effect.
pickItem(world, REVIVE);
pick(world, "USE");
expect(pick(world, "PIDGEY")).toEqual(["It won't have any effect."]);
close(world);
const [healed, cured] = world.state.party;
expect(healed.hp).toBe(25);
expect(cured.status).toBe(0);
expect(world.state.bag.items).toEqual([
{ item: POTION, quantity: 4 },
{ item: REVIVE, quantity: 1 },
{ item: FULL_RESTORE, quantity: 1 },
]);
world.state.party[1].hp = 0;
world.state.party[0].hp = 1;
world.state.party[0].status = POISONED;
open(world);
pick(world, "PACK");
pickItem(world, REVIVE);
pick(world, "USE");
expect(pick(world, "PIDGEY")).toEqual(["PIDGEY is revitalized."]);
pickItem(world, FULL_RESTORE);
pick(world, "USE");
const max = world.state.party[0].stats[0];
expect(pick(world, "CYNDAQUIL")).toEqual([`CYNDAQUIL recovered ${max - 1}HP!`]);
close(world);
expect(world.state.party[1].hp).toBe(world.state.party[1].stats[0] >> 1);
expect(world.state.party[0].hp).toBe(max);
expect(world.state.party[0].status).toBe(0);
expect(world.state.bag.items).toEqual([{ item: POTION, quantity: 4 }]);
});
it("makes bitter herbs cost happiness", () => {
const world = fixture();
world.state.party[0].hp = 1;
world.state.bag.items.push({ item: ENERGYPOWDER, quantity: 1 });
const happiness = world.state.party[0].happiness;
open(world);
pick(world, "PACK");
pickItem(world, ENERGYPOWDER);
pick(world, "USE");
expect(pick(world, "CYNDAQUIL")).toEqual([
"CYNDAQUIL recovered 24HP!",
"It looks bitter…",
]);
close(world);
expect(world.state.party[0].happiness).toBe(happiness - 5);
});
it("restores and raises PP", () => {
const world = fixture();
world.state.party[0].pp = [10, 30, 3, 0];
world.state.bag.items.push(
{ item: ETHER, quantity: 1 },
{ item: ELIXER, quantity: 1 },
{ item: PP_UP, quantity: 2 },
);
open(world);
pick(world, "PACK");
pickItem(world, ETHER);
pick(world, "USE");
expect(pick(world, "CYNDAQUIL")).toEqual(["Restore the PP of which move?"]);
expect(menuItems(world)).toEqual(["TACKLE", "LEER", "SMOKESCREEN"]);
// B returns to the party menu.
world.advanceDialogue();
expect(until(world)).toEqual(["Use on which POKéMON?"]);
pick(world, "CYNDAQUIL");
// Full PP: no effect.
expect(pick(world, "LEER")).toEqual(["It won't have any effect."]);
pickItem(world, ETHER);
pick(world, "USE");
pick(world, "CYNDAQUIL");
expect(pick(world, "TACKLE")).toEqual(["PP was restored."]);
pickItem(world, ELIXER);
pick(world, "USE");
expect(pick(world, "CYNDAQUIL")).toEqual(["PP was restored."]);
pickItem(world, PP_UP);
pick(world, "USE");
expect(pick(world, "CYNDAQUIL")).toEqual(["Raise the PP of which move?"]);
expect(pick(world, "TACKLE")).toEqual(["TACKLE's PP increased."]);
close(world);
// Tackle: 10, +10 (Ether), +10 (Elixer), then a PP Up adds a fifth of
// the base PP (7 of 35) to both the current PP and the maximum.
const pp = world.state.party[0].pp;
expect(pp).toEqual([0x40 | 37, 30, 13, 0]);
expect(maxPP(world.assets.pokemon, TACKLE, 1) & 63).toBe(42);
const items = world.state.bag.items;
expect(items.find((slot) => slot.item === PP_UP)?.quantity).toBe(1);
expect(items.some((slot) => slot.item === ETHER || slot.item === ELIXER)).toBe(false);
});
it("refuses a PP Up on a move that has had three", () => {
const world = fixture();
world.state.party[0].pp[1] = 0xc0 | 30;
world.state.bag.items.push({ item: PP_UP, quantity: 1 });
open(world);
pick(world, "PACK");
pickItem(world, PP_UP);
pick(world, "USE");
pick(world, "CYNDAQUIL");
// PPIsMaxedOutText, then the move list again.
expect(pick(world, "LEER")).toEqual([
"LEER's PP is maxed out.",
"Raise the PP of which move?",
]);
close(world);
expect(world.state.party[0].pp[1]).toBe(0xc0 | 30);
expect(world.state.bag.items.at(-1)).toEqual({ item: PP_UP, quantity: 1 });
});
it("tosses items after confirming the quantity", () => {
const world = fixture();
open(world);
pick(world, "PACK");
pickItem(world, POTION);
pick(world, "TOSS");
const choice = world.dialogue?.choice;
expect(choice?.kind === "martquantity" && [choice.prompt, choice.max]).toEqual([
"Throw away how\nmany?",
5,
]);
world.choose(3);
expect(until(world)).toEqual(["Throw away 3 POTION(S)?"]);
world.choose(0);
until(world);
pickItem(world, POTION);
pick(world, "TOSS");
world.choose(3);
until(world);
world.choose(1);
expect(until(world)).toEqual(["Threw away POTION(S)."]);
close(world);
expect(world.state.bag.items[0]).toEqual({ item: POTION, quantity: 2 });
});
it("gets on the Bicycle from the Key pocket, or gives Oak's warning indoors", () => {
const world = fixture();
open(world);
pick(world, "PACK");
pickItem(world, BICYCLE);
expect(menuItems(world)).toEqual(["USE", "SEL", "QUIT"]);
world.choose(0);
expect(settle(world).join(" ")).toContain("got on the\nBICYCLE.");
expect(world.notice, world.diagnostic).toBe("");
expect(world.state.playerState).toBe(1);
const indoors = fixture(PLAYERS_HOUSE, 7, 4);
open(indoors);
pick(indoors, "PACK");
pickItem(indoors, BICYCLE);
expect(pick(indoors, "USE")).toEqual([
"OAK: CHRIS! This isn't the time to use that!",
]);
close(indoors);
expect(indoors.state.playerState).toBe(0);
});
it("registers the Bicycle with SEL, and Select rides it without a message", () => {
const world = fixture();
// Nothing registered yet.
expect(world.useSelect()).toBe(true);
expect(until(world)).toEqual([
"An item in your PACK may be",
"registered for use on SELECT Button.",
]);
close(world);
open(world);
pick(world, "PACK");
pickItem(world, BICYCLE);
expect(pick(world, "SEL")).toEqual(["Registered the BICYCLE."]);
close(world);
expect(world.state.registeredItem).toEqual({ which: 0x81, item: BICYCLE });
// The registration is saved.
world.restore(world.save());
expect(world.state.registeredItem).toEqual({ which: 0x81, item: BICYCLE });
expect(world.useSelect()).toBe(true);
expect(settle(world)).toEqual([]);
expect(world.diagnostic).toBe("");
expect(world.state.playerState).toBe(1);
expect(world.useSelect()).toBe(true);
expect(settle(world)).toEqual([]);
expect(world.state.playerState).toBe(0);
const indoors = fixture(PLAYERS_HOUSE, 7, 4);
indoors.state.registeredItem = { which: 0x81, item: BICYCLE };
indoors.useSelect();
expect(until(indoors)).toEqual(["OAK: CHRIS! This isn't the time to use that!"]);
close(indoors);
expect(indoors.state.playerState).toBe(0);
});
it("forgets a registered item that left its slot", () => {
const world = fixture();
world.state.registeredItem = { which: 0x02, item: POTION };
world.useSelect();
expect(until(world)[0]).toBe("An item in your PACK may be");
close(world);
expect(world.state.registeredItem).toEqual({ which: 0, item: 0 });
});
it("offers no USE without a field menu", () => {
const world = fixture();
world.state.bag.balls = [{ item: 5, quantity: 3 }];
open(world);
pick(world, "PACK");
// Poké Balls have no field menu: GIVE and TOSS only.
pickItem(world, 5);
expect(menuItems(world)).toEqual(["GIVE", "TOSS", "QUIT"]);
pick(world, "QUIT");
close(world);
});
it("raises a level with a Rare Candy, forgetting a move to learn a new one", () => {
const world = fixture();
const pidgey = world.state.party[1];
pidgey.moves = [TACKLE, CUT, LEER, GUST];
pidgey.pp = [35, 30, 30, 35];
pidgey.hp = 0;
world.state.bag.items.push({ item: RARE_CANDY, quantity: 2 });
const data = world.assets.pokemon;
open(world);
pick(world, "PACK");
pickItem(world, RARE_CANDY);
pick(world, "USE");
const pages = pick(world, "PIDGEY");
expect(pages.slice(0, 2)).toEqual([
"PIDGEY grew to level 5!",
pages[1],
]);
expect(pages[1]).toMatch(/^ATTACK \d+ DEFENSE \d+ SPCL\.ATK \d+ SPCL\.DEF \d+ SPEED \d+$/);
expect(pages.slice(2)).toEqual([
"PIDGEY is trying to learn SAND-ATTACK.",
"But PIDGEY can't learn more than four moves.",
"Delete an older move to make room for SAND-ATTACK?",
]);
world.choose(1);
expect(until(world)).toEqual(["Which move should be forgotten?"]);
expect(menuItems(world)).toEqual(["TACKLE", "CUT", "LEER", "GUST"]);
expect(pick(world, "CUT")).toEqual([
"HM moves can't be forgotten now.",
"Which move should be forgotten?",
]);
expect(pick(world, "LEER")).toEqual([
"1, 2 and… Poof!",
"PIDGEY forgot LEER.",
"And…",
"PIDGEY learned SAND-ATTACK!",
]);
close(world);
const mon = world.state.party[1];
expect(mon.level).toBe(5);
expect(mon.exp).toBe(data.expAtLevel(data.baseData(PIDGEY).growthRate, 5));
expect(mon.moves).toEqual([TACKLE, CUT, SAND_ATTACK, GUST]);
expect(mon.pp[2]).toBe(data.move(SAND_ATTACK).pp);
// The Rare Candy adds the maximum HP's rise even to a fainted Pokémon.
expect(mon.hp).toBe(mon.stats[0] - pidgey.stats[0]);
expect(mon.hp).toBeGreaterThan(0);
expect(world.state.bag.items.at(-1)).toEqual({ item: RARE_CANDY, quantity: 1 });
});
it("can decline to learn the move", () => {
const world = fixture();
world.state.party[1].moves = [TACKLE, CUT, LEER, GUST];
world.state.bag.items.push({ item: RARE_CANDY, quantity: 1 });
open(world);
pick(world, "PACK");
pickItem(world, RARE_CANDY);
pick(world, "USE");
pick(world, "PIDGEY");
world.choose(0);
expect(until(world)).toEqual(["Stop learning SAND-ATTACK?"]);
world.choose(1);
expect(until(world)).toEqual(["PIDGEY did not learn SAND-ATTACK."]);
close(world);
expect(world.state.party[1].moves).toEqual([TACKLE, CUT, LEER, GUST]);
expect(world.state.party[1].level).toBe(5);
});
it("evolves after a Rare Candy, and B can stop it", () => {
for (const stop of [false, true]) {
const world = fixture();
const data = world.assets.pokemon;
world.state.party[0] = generatePartyMon(data, {
species: CYNDAQUIL,
level: 13,
item: 0,
otId: world.playerId,
ot: "CHRIS",
dvs: 0x9abc,
caughtData: 0,
});
world.state.bag.items.push({ item: RARE_CANDY, quantity: 1 });
open(world);
pick(world, "PACK");
pickItem(world, RARE_CANDY);
pick(world, "USE");
world.choose(0);
// Acknowledge pages until the evolution animation starts.
const pages: string[] = [];
for (let i = 0; i < 200 && !world.evolution; i++) {
const dialogue = world.dialogue;
if (dialogue) {
pages.push(dialogue.pages[dialogue.index].replace(/\n/g, " "));
if (dialogue.holdTicks !== undefined) world.tick();
else world.advanceDialogue();
} else world.tick();
}
expect(pages[0]).toBe("CYNDAQUIL grew to level 14!");
expect(pages.at(-1)).toBe("What? CYNDAQUIL is evolving!");
expect(world.picture).toBe(CYNDAQUIL);
// B does nothing before the flashes begin.
world.advanceDialogue();
expect(world.evolution).toBeDefined();
for (let tick = 0; tick < 40; tick++) world.tick();
if (stop) {
world.advanceDialogue();
expect(until(world)).toEqual(["Huh? CYNDAQUIL stopped evolving!"]);
} else {
expect(until(world)).toEqual([
"Congratulations! Your CYNDAQUIL",
"evolved into QUILAVA!",
]);
}
close(world);
const mon = world.state.party[0];
expect(mon.level).toBe(14);
expect([mon.species, mon.nickname]).toEqual(
stop ? [CYNDAQUIL, "CYNDAQUIL"] : [QUILAVA, "QUILAVA"],
);
expect(mon.stats).toEqual(
calcStats(data, mon.species, mon.dvs, 14, mon.statExp),
);
expect(world.state.pokedex.caught.has(QUILAVA)).toBe(!stop);
expect(world.state.bag.items.some((slot) => slot.item === RARE_CANDY)).toBe(false);
}
});
it("evolves with a stone, which B cannot stop, unless held back by an Everstone", () => {
const world = fixture();
const data = world.assets.pokemon;
world.state.party[1] = generatePartyMon(data, {
species: PIKACHU,
level: 10,
item: EVERSTONE,
otId: world.playerId,
ot: "CHRIS",
dvs: 0x9abc,
caughtData: 0,
});
world.state.party[1].nickname = "SPARKY";
world.state.bag.items.push({ item: THUNDERSTONE, quantity: 2 });
open(world);
pick(world, "PACK");
pickItem(world, THUNDERSTONE);
expect(pick(world, "USE")).toEqual(["Use on which POKéMON?"]);
const party = world.dialogue?.choice;
expect(party?.kind === "menu" && party.details).toEqual(["NOT ABLE", "ABLE"]);
expect(pick(world, "CYNDAQUIL")).toEqual(["It won't have any effect."]);
pickItem(world, THUNDERSTONE);
pick(world, "USE");
expect(pick(world, "SPARKY")).toEqual(["It won't have any effect."]);
close(world);
world.state.party[1].item = 0;
open(world);
pick(world, "PACK");
pickItem(world, THUNDERSTONE);
pick(world, "USE");
world.choose(1);
for (let i = 0; i < 20 && !world.evolution; i++) {
if (world.dialogue?.holdTicks !== undefined) world.tick();
else world.advanceDialogue();
}
for (let tick = 0; tick < 60; tick++) world.tick();
world.advanceDialogue();
expect(until(world)).toEqual([
"Congratulations! Your SPARKY",
"evolved into RAICHU!",
]);
close(world);
const mon = world.state.party[1];
// A nickname stays.
expect([mon.species, mon.nickname]).toEqual([RAICHU, "SPARKY"]);
expect(world.state.bag.items.at(-1)).toEqual({ item: THUNDERSTONE, quantity: 1 });
});
it("raises stat experience with a vitamin, up to its limit", () => {
const world = fixture();
const data = world.assets.pokemon;
const mon = world.state.party[0];
const hp = mon.hp,
happiness = mon.happiness;
world.state.bag.items.push({ item: HP_UP, quantity: 2 });
open(world);
pick(world, "PACK");
pickItem(world, HP_UP);
pick(world, "USE");
expect(pick(world, "CYNDAQUIL")).toEqual(["CYNDAQUIL's HEALTH rose."]);
close(world);
const raised = world.state.party[0];
expect(raised.statExp[0]).toBe(2560);
expect(raised.stats).toEqual(calcStats(data, CYNDAQUIL, raised.dvs, 8, raised.statExp));
expect(raised.hp).toBe(hp);
expect(raised.happiness).toBeGreaterThan(happiness);
raised.statExp[0] = 100 << 8;
open(world);
pick(world, "PACK");
pickItem(world, HP_UP);
pick(world, "USE");
expect(pick(world, "CYNDAQUIL")).toEqual(["It won't have any effect."]);
close(world);
expect(world.state.party[0].statExp[0]).toBe(100 << 8);
expect(world.state.bag.items.at(-1)).toEqual({ item: HP_UP, quantity: 1 });
});
it("saves the state from before the menu while it is open", () => {
const world = fixture();
world.state.party[0].hp = 5;
open(world);
pick(world, "PACK");
pickItem(world, POTION);
pick(world, "USE");
pick(world, "CYNDAQUIL");
const saved = world.save();
expect(saved.party?.[0].hp).toBe(5);
expect(saved.bag?.items[0].quantity).toBe(5);
const reloaded = fixture();
reloaded.restore(saved);
expect(reloaded.busy).toBe(false);
expect(reloaded.state.party[0].hp).toBe(5);
close(world);
expect(world.state.party[0].hp).toBe(25);
});
});