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wizwar6e/packages/engine/test/expansion-combat.test.ts
Eric WagonerandClaude Fable 5 12ece6065a Mad Dash doubles everything it promises (rules rev 12)
'Including NUMBER cards and other add-ons' now means it: a number
riding the cast fuels the dash — (base + number) × 2 — and numbers or
POWER RUN points played under it double as well. The 5BM4 five that
vanished into a borrowed 'burns 0 life for speed' line gets its own
madDash event and chronicle voice. Older games doubled only the base
and replay so, pinned at deckRev 11.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RCWSTnb1KYTPyL4GmhGnF
2026-08-30 16:25:30 -04:00

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import { describe, expect, it } from "vitest";
import { applyCommand, activePlayer, boardView, createGame, gameLos, sustainedOn } from "../src/game";
import { cellKey, edgeKey, stepTarget } from "../src/board";
import type { CardInstance } from "../src/cards";
import { newExpansionGame as newGame, must, drain, giveCard, toRound2, faceOff, castAt } from "./helpers";
describe("expansion combat cards", () => {
it("power attack burns life for extra damage", () => {
let { state } = newGame();
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const fb = giveCard(state, attacker, "fireball");
giveCard(state, attacker, "power-attack", "PA", 1);
state = castAt(state, attacker, defender, fb, {
powerAttackInstanceId: "power-attack#PA", powerAttackPoints: 3,
});
expect(state.players.find((p) => p.id === defender)!.life).toBe(7); // 5+3
expect(state.players.find((p) => p.id === attacker)!.life).toBe(12);
});
it("weakness doubles damage taken and forbids carrying treasure", () => {
let { state } = newGame();
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const wk = giveCard(state, attacker, "weakness");
giveCard(state, attacker, "number-3", "N", 1);
state = castAt(state, attacker, defender, wk, { numberInstanceIds: ["number-3#N"] });
expect(sustainedOn(state, defender, "weakness").length).toBe(1);
state = must(state, attacker, { type: "endTurn", draw: 0 });
const t = state.treasures.find((t) => t.owner === attacker && t.position)!;
const d = state.players.find((p) => p.id === defender)!;
d.position = { ...t.position! };
expect(applyCommand(state, defender, { type: "pickUpTreasure" }).ok).toBe(false);
state = must(state, defender, { type: "endTurn", draw: 0 });
const fb = giveCard(state, attacker, "fireball", "F", 0);
const d2 = state.players.find((p) => p.id === defender)!;
d2.position = { ...state.players.find((p) => p.id === attacker)!.position };
state = castAt(state, attacker, defender, fb);
expect(state.players.find((p) => p.id === defender)!.life).toBe(5); // 5x2
});
it("walking dead bleeds half a point per space walked", () => {
let { state } = newGame();
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const wd = giveCard(state, attacker, "walking-dead");
state = castAt(state, attacker, defender, wd);
state = must(state, attacker, { type: "endTurn", draw: 0 });
// Defender walks: every second step costs a point.
let lifeStart = state.players.find((p) => p.id === defender)!.life;
let steps = 0;
for (const dir of ["N", "S", "E", "W", "N", "S"] as const) {
const r = applyCommand(state, defender, { type: "move", direction: dir });
if (r.ok) { state = r.state; steps++; }
if (steps === 2) break;
}
expect(steps).toBe(2);
expect(state.players.find((p) => p.id === defender)!.life).toBe(lifeStart - 1);
});
it("a reversed walking dead heals half a point per space walked (rev 11)", () => {
let { state } = newGame();
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const wd = giveCard(state, attacker, "walking-dead");
giveCard(state, defender, "reverse", "RV", 0);
const r = applyCommand(state, attacker, {
type: "cast", instanceId: wd.instanceId, target: { kind: "player", playerId: defender },
});
if (!r.ok) throw new Error(r.error);
state = must(r.state, defender, { type: "counteract", instanceId: "reverse#RV" });
state = drain(state);
expect(sustainedOn(state, defender, "walking-dead").length).toBe(1);
state = must(state, attacker, { type: "endTurn", draw: 0 });
// Two spaces walked: one point gained, not bled.
let steps = 0;
for (const dir of ["N", "S", "E", "W", "N", "S", "E", "W"] as const) {
if (steps >= 2) break;
const mv = applyCommand(state, defender, { type: "move", direction: dir });
if (mv.ok) { state = mv.state; steps++; }
}
expect(steps).toBe(2);
expect(state.players.find((p) => p.id === defender)!.life).toBe(16);
});
it("mad dash doubles the base, the riding number, and later fuel (rev 12)", () => {
let { state } = newGame();
state = toRound2(state);
const me = activePlayer(state).id;
const md = giveCard(state, me, "mad-dash");
giveCard(state, me, "exp1-number-5", "N5", 1);
state = must(state, me, {
type: "cast", instanceId: md.instanceId, numberInstanceIds: ["exp1-number-5#N5"],
});
expect(state.turn.movementAllowance).toBe(16); // (3 + 5) × 2
// The rider was the turn's movement number: a bare second is refused.
giveCard(state, me, "number-2", "N2", 0);
expect(applyCommand(state, me, { type: "playNumberForMovement", instanceId: "number-2#N2" }).ok).toBe(false);
// POWER RUN points double under the dash too.
const pr = giveCard(state, me, "power-run", "PR", 2);
state = must(state, me, { type: "cast", instanceId: pr.instanceId, params: { points: 2 } });
expect(state.turn.movementAllowance).toBe(20); // 16 + 2×2
});
it("a number played after a bare mad dash doubles as well (rev 12)", () => {
let { state } = newGame();
state = toRound2(state);
const me = activePlayer(state).id;
const md = giveCard(state, me, "mad-dash");
state = must(state, me, { type: "cast", instanceId: md.instanceId });
expect(state.turn.movementAllowance).toBe(6); // 3 × 2
giveCard(state, me, "exp1-number-5", "N5", 0);
state = must(state, me, { type: "playNumberForMovement", instanceId: "exp1-number-5#N5" });
expect(state.turn.movementAllowance).toBe(16); // 6 + 5×2
});
it("older decks double only the base and eat the rider (rev ≤11)", () => {
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"], deckRev: 11 });
state = toRound2(state);
const me = activePlayer(state).id;
const md = giveCard(state, me, "mad-dash");
giveCard(state, me, "exp1-number-5", "N5", 1);
state = must(state, me, {
type: "cast", instanceId: md.instanceId, numberInstanceIds: ["exp1-number-5#N5"],
});
expect(state.turn.movementAllowance).toBe(6); // 3 × 2, the five wasted
});
it("mental swap trades entire hands", () => {
let { state } = newGame();
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const ms = giveCard(state, attacker, "mental-swap");
const aCards = state.players.find((p) => p.id === attacker)!.hand.map((c) => c.instanceId);
const dCards = state.players.find((p) => p.id === defender)!.hand.map((c) => c.instanceId);
state = castAt(state, attacker, defender, ms);
const aAfter = state.players.find((p) => p.id === attacker)!.hand.map((c) => c.instanceId);
expect(aAfter).toEqual(dCards);
// (the swap card itself was consumed from the attacker's hand pre-swap)
expect(state.players.find((p) => p.id === defender)!.hand.map((c) => c.instanceId))
.toEqual(aCards.filter((id) => id !== ms.instanceId));
});
it("butt-head rams for the distance charged (legacy rev 9 rules)", () => {
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"], deckRev: 9 });
state = toRound2(state);
const attacker = activePlayer(state);
const defender = state.players.find((p) => p.id !== attacker.id)!;
// Stand them 3 apart on the same column if possible; else same square +N.
defender.position = { x: attacker.position.x, y: attacker.position.y >= 3 ? attacker.position.y - 3 : attacker.position.y + 3 };
const bh = giveCard(state, attacker.id, "butt-head");
state = castAt(state, attacker.id, defender.id, bh);
const a = state.players.find((p) => p.id === attacker.id)!;
const d = state.players.find((p) => p.id === defender.id)!;
expect(cellKey(a.position)).toBe(cellKey(d.position));
expect(d.life).toBe(12); // 3 spaces = 3 damage
});
it("empathy turns an attack back on its caster as well", () => {
let { state } = newGame();
state = toRound2(state);
const { attacker, defender } = faceOff(state);
// Defender raises empathy on their own turn.
state = must(state, attacker, { type: "endTurn", draw: 0 });
const em = giveCard(state, defender, "empathy", "E", 0);
giveCard(state, defender, "number-3", "N", 1);
state = must(state, defender, {
type: "cast", instanceId: em.instanceId, numberInstanceIds: ["number-3#N"],
});
state = must(state, defender, { type: "endTurn", draw: 0 });
const fb = giveCard(state, attacker, "fireball", "F", 0);
state = castAt(state, attacker, defender, fb);
expect(state.players.find((p) => p.id === defender)!.life).toBe(10);
expect(state.players.find((p) => p.id === attacker)!.life).toBe(10);
});
it("ward springs in the moment: the grab hangs on the owner's choice", () => {
let { state } = newGame();
const me = activePlayer(state);
const enemy = state.players.find((p) => p.id !== me.id)!;
giveCard(state, enemy.id, "ward", "W", 0);
const treasure = state.treasures.find((t) => t.owner === enemy.id && t.position)!;
me.position = { ...treasure.position! };
state = must(state, me.id, { type: "pickUpTreasure" });
expect(state.wardPending).toEqual({ ownerId: enemy.id, takerId: me.id });
state = must(state, enemy.id, { type: "wardChoice", play: true });
state = drain(state);
expect(state.players.find((p) => p.id === me.id)!.life).toBe(12);
expect(state.players.find((p) => p.id === enemy.id)!.hand.some((c) => c.cardId === "ward")).toBe(false);
});
it("opportunity fire opens an out-of-turn attack window", () => {
let { state } = newGame();
state = toRound2(state);
const active = activePlayer(state).id;
const lurker = state.players.find((p) => p.id !== active)!;
lurker.position = { ...state.players.find((p) => p.id === active)!.position };
const of_ = giveCard(state, lurker.id, "opportunity-fire", "OF", 0);
const fb = giveCard(state, lurker.id, "fireball", "F", 1);
// Out of turn: play opportunity fire, then the attack.
state = must(state, lurker.id, { type: "cast", instanceId: of_.instanceId });
expect(state.outOfTurnWindow?.playerId).toBe(lurker.id);
state = must(state, lurker.id, {
type: "cast", instanceId: fb.instanceId, target: { kind: "player", playerId: active },
});
state = must(state, active, { type: "pass" });
expect(state.players.find((p) => p.id === active)!.life).toBe(10);
// Turn structure is intact: the original player is still active.
expect(activePlayer(state).id).toBe(active);
expect(state.outOfTurnWindow).toBeNull();
});
it("idiot marches its victim toward their own treasure and forbids casting", () => {
let { state } = newGame();
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const id = giveCard(state, attacker, "idiot");
state = castAt(state, attacker, defender, id);
expect(sustainedOn(state, defender, "idiot").length).toBe(1);
state = must(state, attacker, { type: "endTurn", draw: 0 });
// Casting is refused; moving is steered (any direction request works).
const fb = giveCard(state, defender, "fireball", "F", 0);
expect(applyCommand(state, defender, {
type: "cast", instanceId: fb.instanceId, target: { kind: "player", playerId: attacker },
}).ok).toBe(false);
const before = state.players.find((p) => p.id === defender)!.position;
const r = applyCommand(state, defender, { type: "move", direction: "N" });
if (r.ok) {
const after = r.state.players.find((p) => p.id === defender)!.position;
expect(cellKey(after)).not.toBe(cellKey(before));
} else {
expect(r.error).toMatch(/blocked/);
}
});
it("idiot lifts the moment the victim's last floor treasure is carried off", () => {
let { state } = createGame({ playerIds: ["alice", "bob", "carol"], seed: 42, sets: ["basic"] });
while (state.turn.round < 2) {
state = must(state, activePlayer(state).id, { type: "endTurn", draw: 0 });
}
const { attacker, defender } = faceOff(state);
const third = state.players.find((p) => p.id !== attacker && p.id !== defender)!;
const id = giveCard(state, attacker, "idiot");
state = castAt(state, attacker, defender, id);
expect(sustainedOn(state, defender, "idiot").length).toBe(1);
// A third wizard hauls off one of the victim's chests: one destination
// remains, so the march goes on.
const [first, second] = state.treasures.filter((t) => t.owner === defender);
const hauler = state.players.find((p) => p.id === third.id)!;
first!.carriedBy = hauler.id;
first!.position = null;
hauler.carriedTreasureId = first!.id;
expect(sustainedOn(state, defender, "idiot").length).toBe(1);
// The caster takes the last one off the floor — nothing left to march
// to, and the curse lifts on the spot.
const att = state.players.find((p) => p.id === attacker)!;
att.position = { ...second!.position! };
state = must(state, attacker, { type: "pickUpTreasure", treasureId: second!.id });
expect(sustainedOn(state, defender, "idiot").length).toBe(0);
});
it("idiot forbids item handling and punches but allows counteractions", () => {
let { state } = createGame({
playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"],
});
state = toRound2(state);
const { attacker, defender } = faceOff(state);
// The victim carries an OPPONENT'S treasure into the spell.
const d = state.players.find((p) => p.id === defender)!;
const stolen = state.treasures.find((t) => t.owner === attacker)!;
stolen.carriedBy = defender;
stolen.position = null;
d.carriedTreasureId = stolen.id;
const id = giveCard(state, attacker, "idiot");
state = castAt(state, attacker, defender, id);
expect(sustainedOn(state, defender, "idiot").length).toBe(1);
state = must(state, attacker, { type: "endTurn", draw: 0 });
// No dropping the carried treasure (no capturing it on your home, either).
const drop = applyCommand(state, defender, { type: "dropTreasure" });
expect(drop.ok).toBe(false);
if (!drop.ok) expect(drop.error).toMatch(/treasure/);
// No punching the tormentor.
expect(applyCommand(state, defender, { type: "punch", targetId: attacker }).ok).toBe(false);
// Goal-aiding spells stay castable (FAQ: "You could, however, destroy a wall").
const sp = giveCard(state, defender, "speed", "SP", 0);
expect(applyCommand(state, defender, { type: "cast", instanceId: sp.instanceId }).ok).toBe(true);
// Counteractions are expressly allowed: absorb an incoming fireball.
state = must(state, defender, { type: "endTurn", draw: 0 });
const fb = giveCard(state, attacker, "fireball", "F", 0);
state = must(state, attacker, {
type: "cast", instanceId: fb.instanceId, target: { kind: "player", playerId: defender },
});
giveCard(state, defender, "absorb-spell", "AB", 1);
expect(applyCommand(state, defender, { type: "counteract", instanceId: "absorb-spell#AB" }).ok).toBe(true);
});
it("idiot never steers the march — the step goes where asked", () => {
let { state } = createGame({
playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"],
});
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const id = giveCard(state, attacker, "idiot");
state = castAt(state, attacker, defender, id);
expect(sustainedOn(state, defender, "idiot").length).toBe(1);
state = must(state, attacker, { type: "endTurn", draw: 0 });
const d = state.players.find((p) => p.id === defender)!;
const board = boardView(state);
const open = (["N", "S", "E", "W"] as const)
.filter((s) => stepTarget(board, d.position, s).kind === "step");
expect(open.length).toBeGreaterThanOrEqual(2);
// Plant the victim's own gold one step out one way; walk the other way.
const toward = stepTarget(board, d.position, open[0]!);
const away = stepTarget(board, d.position, open[1]!);
if (toward.kind === "blocked" || away.kind === "blocked") throw new Error("unreachable");
const own = state.treasures.find((t) => t.owner === defender)!;
own.carriedBy = null;
own.position = toward.to;
state = must(state, defender, { type: "move", direction: open[1]! });
expect(cellKey(state.players.find((p) => p.id === defender)!.position)).toBe(cellKey(away.to));
});
it("idiot permits DROP OBJECT that frees the victim's own treasure", () => {
let { state } = createGame({
playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"],
});
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const thief = state.players.find((p) => p.id === attacker)!;
const own = state.treasures.find((t) => t.owner === defender)!;
own.carriedBy = attacker;
own.position = null;
thief.carriedTreasureId = own.id;
const id = giveCard(state, attacker, "idiot");
state = castAt(state, attacker, defender, id);
state = must(state, attacker, { type: "endTurn", draw: 0 });
// An attack for its own sake stays forbidden.
const fb = giveCard(state, defender, "fireball", "F", 0);
expect(applyCommand(state, defender, {
type: "cast", instanceId: fb.instanceId, target: { kind: "player", playerId: attacker },
}).ok).toBe(false);
// Shaking YOUR OWN gold out of the thief's arms serves the march —
// while carried it cannot be stood upon.
const dr = giveCard(state, defender, "drop-object", "D", 1);
const r = applyCommand(state, defender, {
type: "cast", instanceId: dr.instanceId,
target: { kind: "player", playerId: attacker }, params: { cardId: "treasure" },
});
expect(r.ok).toBe(true);
});
it("idiot has no effect on a victim carrying their own treasure", () => {
let { state } = createGame({
playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"],
});
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const d = state.players.find((p) => p.id === defender)!;
const own = state.treasures.find((t) => t.owner === defender)!;
own.carriedBy = defender;
own.position = null;
d.carriedTreasureId = own.id;
const id = giveCard(state, attacker, "idiot");
state = castAt(state, attacker, defender, id);
expect(sustainedOn(state, defender, "idiot").length).toBe(0);
});
});
describe("swap home bases", () => {
it("trades homes when both bases hold equal treasures", () => {
let { state } = newGame();
const me = activePlayer(state);
const other = state.players.find((p) => p.id !== me.id)!;
other.position = { ...me.position }; // LOS guaranteed
const myHome = { ...me.home };
const theirHome = { ...other.home };
const shb = giveCard(state, me.id, "swap-home-bases");
state = must(state, me.id, {
type: "cast", instanceId: shb.instanceId, target: { kind: "player", playerId: other.id },
});
expect(cellKey(state.players.find((p) => p.id === me.id)!.home)).toBe(cellKey(theirHome));
expect(cellKey(state.players.find((p) => p.id === other.id)!.home)).toBe(cellKey(myHome));
});
});
describe("thumb of god (divine meteor)", () => {
it("scatters every token near where the die lands", () => {
let { state } = newGame();
state = toRound2(state);
const me = activePlayer(state);
// Sprinkle the blast zone: a ground object and the enemy nearby.
const enemy = state.players.find((p) => p.id !== me.id)!;
enemy.position = { ...me.position };
state.groundObjects[cellKey(me.position)] = [{ instanceId: "dagger#G", cardId: "dagger" }];
const tog = giveCard(state, me.id, "thumb-of-god");
state = must(state, me.id, {
type: "cast", instanceId: tog.instanceId, target: { kind: "cell", cell: me.position },
});
expect(state.turn.attackUsed).toBe(true);
// The dagger moved somewhere on the board.
const allObjects = Object.values(state.groundObjects).flat();
expect(allObjects.some((c) => c.cardId === "dagger")).toBe(true);
});
});
describe("add for movement", () => {
it("an ADD permits a second number card on movement, once", () => {
let { state } = newGame();
const me = activePlayer(state).id;
giveCard(state, me, "number-3", "N1", 0);
giveCard(state, me, "number-2", "N2", 1);
giveCard(state, me, "add", "A", 2);
giveCard(state, me, "number-4", "N3", 3);
state = must(state, me, { type: "playNumberForMovement", instanceId: "number-3#N1" });
expect(state.turn.movementAllowance).toBe(6);
// Second without ADD: refused.
expect(applyCommand(state, me, { type: "playNumberForMovement", instanceId: "number-2#N2" }).ok).toBe(false);
// With ADD: allowed.
state = must(state, me, { type: "playNumberForMovement", instanceId: "number-2#N2", addInstanceId: "add#A" });
expect(state.turn.movementAllowance).toBe(8);
// A third is refused even with another add wished for.
expect(applyCommand(state, me, { type: "playNumberForMovement", instanceId: "number-4#N3" }).ok).toBe(false);
});
});
describe("ambushes (async interrupts)", () => {
it("an armed Opportunity Fire springs when prey walks into sight", () => {
let { state } = newGame();
state = toRound2(state);
const owner = activePlayer(state);
const of_ = giveCard(state, owner.id, "opportunity-fire", "OF", 0);
const fb = giveCard(state, owner.id, "fireball", "FB", 1);
state = must(state, owner.id, {
type: "setAmbush", instanceId: of_.instanceId, trigger: { kind: "los" },
spellInstanceId: fb.instanceId,
});
const o = state.players.find((p) => p.id === owner.id)!;
expect(o.hand.some((c) => c.cardId === "fireball")).toBe(false);
expect(state.ambushes.length).toBe(1);
state = must(state, owner.id, { type: "endTurn", draw: 0 });
const preyNow = state.players.find((p) => p.id !== owner.id)!;
const ownerNow = state.players.find((p) => p.id === owner.id)!;
// Find a step that goes from a no-LOS cell into a LOS cell.
let found: { from: { x: number; y: number }; side: "N" | "S" | "E" | "W" } | null = null;
outer: for (const key of Object.keys(state.board.cells)) {
const [x, y] = key.split(",").map(Number) as [number, number];
const cell = { x, y };
if (!gameLos(state, ownerNow.position, cell)) continue;
for (const side of ["N", "S", "E", "W"] as const) {
const dx = side === "E" ? 1 : side === "W" ? -1 : 0;
const dy = side === "S" ? 1 : side === "N" ? -1 : 0;
const from = { x: x - dx, y: y - dy };
if (!state.board.cells[cellKey(from)]) continue;
if (gameLos(state, ownerNow.position, from)) continue;
const st = stepTarget(boardView(state), from, side);
if (st.kind === "step" && cellKey(st.to) === key) { found = { from, side }; break outer; }
}
}
expect(found).not.toBeNull();
preyNow.position = found!.from;
state = must(state, preyNow.id, { type: "move", direction: found!.side });
expect(state.stack).not.toBeNull();
expect(state.stack!.attackerId).toBe(owner.id);
expect(state.stack!.attackCard!.cardId).toBe("fireball");
expect(state.ambushes.length).toBe(0);
state = must(state, preyNow.id, { type: "pass" });
expect(state.players.find((p) => p.id === preyNow.id)!.life).toBe(10);
});
it("cancelling an ambush returns the committed cards", () => {
let { state } = newGame();
const owner = activePlayer(state);
const int_ = giveCard(state, owner.id, "interrupt", "I", 0);
const lb = giveCard(state, owner.id, "lightning-blast", "LB", 1);
giveCard(state, owner.id, "number-3", "N", 2);
state = must(state, owner.id, {
type: "setAmbush", instanceId: int_.instanceId, trigger: { kind: "near" },
spellInstanceId: lb.instanceId, numberInstanceIds: ["number-3#N"],
});
const id = state.ambushes[0]!.id;
state = must(state, owner.id, { type: "cancelAmbush", ambushId: id });
const o = state.players.find((p) => p.id === owner.id)!;
expect(o.hand.some((c) => c.cardId === "interrupt")).toBe(true);
expect(o.hand.some((c) => c.cardId === "lightning-blast")).toBe(true);
expect(state.ambushes.length).toBe(0);
});
});
describe("strength tears treasures from wizards' arms", () => {
function grip(seed: number) {
let { state } = createGame({ playerIds: ["alice", "bob"], seed, sets: ["basic", "expansion1"] });
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const d = state.players.find((p) => p.id === defender)!;
// The defender carries the ATTACKER's own treasure (no ward window).
const stolen = state.treasures.find((t) => t.owner === attacker)!;
stolen.carriedBy = defender;
stolen.position = null;
d.carriedTreasureId = stolen.id;
const st = giveCard(state, attacker, "strength");
giveCard(state, attacker, "number-2", "N", 1);
state = must(state, attacker, {
type: "cast", instanceId: st.instanceId, numberInstanceIds: ["number-2#N"],
});
return { state, attacker, defender, treasure: stolen.id };
}
it("the grip is an attack: the victim keeps the treasure only on a 1", () => {
let torn = 0, kept = 0;
for (let seed = 1; seed <= 12; seed++) {
const { state, attacker, defender, treasure } = grip(seed);
let r = applyCommand(state, attacker, { type: "tearTreasure", targetId: defender });
if (!r.ok) throw new Error(r.error);
// Rev 6: the grab waits out its counteraction window first.
expect(r.state.stack?.tearTreasure).toBe(true);
r = applyCommand(r.state, defender, { type: "pass" });
if (!r.ok) throw new Error(r.error);
expect(r.state.turn.attackUsed).toBe(true);
// FAQ: tearing is not picking up — the turn's actions continue.
expect(r.state.turn.actionsEnded).toBe(false);
const a = r.state.players.find((p) => p.id === attacker)!;
const d = r.state.players.find((p) => p.id === defender)!;
if (a.carriedTreasureId === treasure) {
torn++;
expect(d.carriedTreasureId).toBeNull();
} else {
kept++;
expect(d.carriedTreasureId).toBe(treasure);
}
// One attack per turn: a second wrench is refused.
expect(applyCommand(r.state, attacker, { type: "tearTreasure", targetId: defender }).ok).toBe(false);
}
expect(torn).toBeGreaterThan(0);
expect(kept).toBeGreaterThan(0);
});
it("without STRENGTH the grip is refused", () => {
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"] });
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const d = state.players.find((p) => p.id === defender)!;
const t = state.treasures.find((t) => t.owner === attacker)!;
t.carriedBy = defender;
t.position = null;
d.carriedTreasureId = t.id;
const r = applyCommand(state, attacker, { type: "tearTreasure", targetId: defender });
expect(r.ok).toBe(false);
});
it("laden arms tear it loose onto the floor — and the ward's owner gets their window", () => {
for (let seed = 1; seed <= 12; seed++) {
let { state } = createGame({ playerIds: ["alice", "bob", "cara"], seed, sets: ["basic", "expansion1"] });
state = toRound2(state);
while (activePlayer(state).id !== "alice") {
state = must(state, activePlayer(state).id, { type: "endTurn", draw: 0 });
}
const alice = state.players.find((p) => p.id === "alice")!;
const bob = state.players.find((p) => p.id === "bob")!;
bob.position = { ...alice.position };
// Alice already hauls her own gold; Bob carries CARA's — and Cara
// holds a WARD over it.
const mine = state.treasures.find((t) => t.owner === "alice")!;
mine.carriedBy = "alice";
mine.position = null;
alice.carriedTreasureId = mine.id;
const caras = state.treasures.find((t) => t.owner === "cara")!;
caras.carriedBy = "bob";
caras.position = null;
bob.carriedTreasureId = caras.id;
giveCard(state, "cara", "ward", "W", 0);
const st = giveCard(state, "alice", "strength");
giveCard(state, "alice", "number-2", "N", 1);
state = must(state, "alice", {
type: "cast", instanceId: st.instanceId, numberInstanceIds: ["number-2#N"],
});
let r = applyCommand(state, "alice", { type: "tearTreasure", targetId: "bob" });
if (!r.ok) throw new Error(r.error);
// Rev 6: the grab waits out its counteraction window first.
r = applyCommand(r.state, "bob", { type: "pass" });
if (!r.ok) throw new Error(r.error);
const after = r.state.treasures.find((t) => t.id === caras.id)!;
if (after.carriedBy === "bob") continue; // Bob rolled his 1 — try again
// Torn loose: Alice's arms are full, so it lands at her feet…
expect(after.position).toEqual(alice.position);
expect(r.state.players.find((p) => p.id === "alice")!.carriedTreasureId).toBe(mine.id);
// …and the seizure hangs on Cara's ward.
expect(r.state.wardPending).toEqual({ ownerId: "cara", takerId: "alice" });
return;
}
throw new Error("every seed rolled a 1 — the rig is wrong");
});
});
describe("swap meet trades carried items", () => {
function rig() {
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"] });
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const sm = giveCard(state, attacker, "swap-meet");
giveCard(state, attacker, "dagger", "D", 1);
giveCard(state, defender, "blaster-wand", "W", 0);
state = must(state, attacker, {
type: "cast", instanceId: sm.instanceId,
target: { kind: "player", playerId: defender },
params: { cardId: "dagger;blaster-wand" },
});
state = must(state, defender, { type: "pass" });
return { state, attacker, defender };
}
it("a dagger trades for a wand — both are carried items", () => {
const { state, attacker, defender } = rig();
expect(state.players.find((p) => p.id === attacker)!.hand.some((c) => c.cardId === "blaster-wand")).toBe(true);
expect(state.players.find((p) => p.id === defender)!.hand.some((c) => c.cardId === "dagger")).toBe(true);
});
});
describe("swap meet trades treasures too", () => {
function treasureRig(theirsToken: string, mineToken: string) {
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"] });
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const a = state.players.find((p) => p.id === attacker)!;
const d = state.players.find((p) => p.id === defender)!;
// The defender hauls one of the attacker's own treasures.
const stolen = state.treasures.find((t) => t.owner === attacker)!;
stolen.position = null; stolen.carriedBy = defender; d.carriedTreasureId = stolen.id;
const sm = giveCard(state, attacker, "swap-meet");
giveCard(state, attacker, "dagger", "D", 1);
state = must(state, attacker, {
type: "cast", instanceId: sm.instanceId,
target: { kind: "player", playerId: defender },
params: { cardId: `${mineToken};${theirsToken}` },
});
state = must(state, defender, { type: "pass" });
return { state, attacker, defender, a, d, stolen };
}
it("a dagger buys back the treasure in the thief's arms", () => {
const { state, attacker, defender } = treasureRig("treasure", "dagger");
const a = state.players.find((p) => p.id === attacker)!;
const d = state.players.find((p) => p.id === defender)!;
const t = state.treasures.find((tr) => tr.owner === attacker && tr.carriedBy)!;
expect(a.carriedTreasureId).toBe(t.id);
expect(t.carriedBy).toBe(attacker);
expect(d.carriedTreasureId).toBeNull();
expect(d.hand.some((c) => c.cardId === "dagger")).toBe(true);
});
it("the trade refuses to overload full arms", () => {
// The attacker also carries a treasure: claiming theirs with a dagger
// would mean two in hand — the swap quietly cannot happen.
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"] });
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const a = state.players.find((p) => p.id === attacker)!;
const d = state.players.find((p) => p.id === defender)!;
const t1 = state.treasures.find((t) => t.owner === attacker)!;
t1.position = null; t1.carriedBy = attacker; a.carriedTreasureId = t1.id;
const t2 = state.treasures.find((t) => t.owner === defender)!;
t2.position = null; t2.carriedBy = defender; d.carriedTreasureId = t2.id;
const sm = giveCard(state, attacker, "swap-meet");
giveCard(state, attacker, "dagger", "D", 1);
state = must(state, attacker, {
type: "cast", instanceId: sm.instanceId,
target: { kind: "player", playerId: defender },
params: { cardId: "dagger;treasure" },
});
state = must(state, defender, { type: "pass" });
expect(state.players.find((p) => p.id === attacker)!.carriedTreasureId).toBe(t1.id);
expect(state.players.find((p) => p.id === defender)!.carriedTreasureId).toBe(t2.id);
});
it("treasure for treasure trades both armfuls", () => {
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"] });
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const a = state.players.find((p) => p.id === attacker)!;
const d = state.players.find((p) => p.id === defender)!;
const t1 = state.treasures.find((t) => t.owner === attacker)!;
t1.position = null; t1.carriedBy = attacker; a.carriedTreasureId = t1.id;
const t2 = state.treasures.find((t) => t.owner === defender)!;
t2.position = null; t2.carriedBy = defender; d.carriedTreasureId = t2.id;
const sm = giveCard(state, attacker, "swap-meet");
state = must(state, attacker, {
type: "cast", instanceId: sm.instanceId,
target: { kind: "player", playerId: defender },
params: { cardId: "treasure;treasure" },
});
state = must(state, defender, { type: "pass" });
expect(state.players.find((p) => p.id === attacker)!.carriedTreasureId).toBe(t2.id);
expect(state.players.find((p) => p.id === defender)!.carriedTreasureId).toBe(t1.id);
expect(state.treasures.find((t) => t.id === t1.id)!.carriedBy).toBe(defender);
expect(state.treasures.find((t) => t.id === t2.id)!.carriedBy).toBe(attacker);
});
});
describe("full reflection hands the swap meet choice to the reflector", () => {
function reflectedSwapRig(reflectorChoice?: string) {
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"] });
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const a = state.players.find((p) => p.id === attacker)!;
// The caster carries a treasure and offers a dagger; the reflector may
// instead demand the trade of their own choosing.
const t = state.treasures.find((t) => t.owner === attacker)!;
t.position = null; t.carriedBy = attacker; a.carriedTreasureId = t.id;
const sm = giveCard(state, attacker, "swap-meet");
giveCard(state, attacker, "dagger", "D", 1);
giveCard(state, defender, "full-reflection", "FR", 0);
giveCard(state, defender, "large-rock", "R", 1);
state = must(state, attacker, {
type: "cast", instanceId: sm.instanceId,
target: { kind: "player", playerId: defender },
params: { cardId: "dagger;large-rock" },
});
state = must(state, defender, {
type: "counteract", instanceId: "full-reflection#FR",
...(reflectorChoice ? { params: { cardId: reflectorChoice } } : {}),
});
state = must(state, attacker, { type: "pass" });
return { state, attacker, defender, treasureId: t.id };
}
it("the reflector rewrites the trade: their rock for the caster's treasure", () => {
const { state, attacker, defender, treasureId } = reflectedSwapRig("large-rock;treasure");
const d = state.players.find((p) => p.id === defender)!;
expect(d.carriedTreasureId).toBe(treasureId);
expect(state.players.find((p) => p.id === attacker)!.hand.some((c) => c.cardId === "large-rock")).toBe(true);
expect(state.players.find((p) => p.id === attacker)!.carriedTreasureId).toBeNull();
});
it("the reflector may decline: 'none' trades nothing", () => {
const { state, attacker, defender, treasureId } = reflectedSwapRig("none");
expect(state.players.find((p) => p.id === attacker)!.carriedTreasureId).toBe(treasureId);
expect(state.players.find((p) => p.id === defender)!.hand.some((c) => c.cardId === "large-rock")).toBe(true);
});
it("a bare full reflection with no choice trades nothing", () => {
const { state, attacker } = reflectedSwapRig(undefined);
expect(state.players.find((p) => p.id === attacker)!.hand.some((c) => c.cardId === "dagger")).toBe(true);
});
});
describe("go away routs around walls", () => {
it("a victim against a wall bends the line instead of standing still", () => {
let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"] });
state = toRound2(state);
const { attacker, defender } = faceOff(state);
const a = state.players.find((p) => p.id === attacker)!;
const d = state.players.find((p) => p.id === defender)!;
// Attacker west of the victim, a wall hard against the victim's east:
// the straight line away is blocked from the first step.
a.position = { x: 1, y: 5 };
d.position = { x: 2, y: 5 };
state.edgeOverrides[edgeKey({ x: 1, y: 5 }, "E")] = "open";
state.edgeOverrides[edgeKey({ x: 2, y: 5 }, "E")] = "wall";
state.edgeOverrides[edgeKey({ x: 2, y: 5 }, "N")] = "open";
state.edgeOverrides[edgeKey({ x: 2, y: 5 }, "S")] = "open";
state.edgeOverrides[edgeKey({ x: 2, y: 4 }, "N")] = "open";
state.edgeOverrides[edgeKey({ x: 2, y: 6 }, "S")] = "open";
const ga = giveCard(state, attacker, "go-away");
giveCard(state, attacker, "number-3", "N3", 1);
state = must(state, attacker, {
type: "cast", instanceId: ga.instanceId, numberInstanceIds: ["number-3#N3"],
target: { kind: "player", playerId: defender },
});
state = must(state, defender, { type: "pass" });
const after = state.players.find((p) => p.id === defender)!;
const dist = Math.abs(after.position.x - 1) + Math.abs(after.position.y - 5);
// Three routed spaces: strictly farther than where they stood.
expect(dist).toBeGreaterThanOrEqual(3);
expect(after.lostTurns).toBe(1);
});
});
describe("the goat charges on legs, not wings (rev 10)", () => {
it("the charge walks real corridors: in reach it spends legs, beyond them it is refused", () => {
let { state } = newGame();
state = toRound2(state);
const attacker = activePlayer(state);
const defender = state.players.find((p) => p.id !== attacker.id)!;
const bh = giveCard(state, attacker.id, "butt-head");
// The engine is the oracle: every other square is either within the
// turn's legal movement or beyond it, and this maze holds both kinds.
let refusals = 0;
let rams = 0;
for (const key of Object.keys(boardView(state).cells)) {
if (key === cellKey(attacker.position)) continue;
const [x, y] = key.split(",").map(Number) as [number, number];
defender.position = { x, y };
const r = applyCommand(state, attacker.id, {
type: "cast", instanceId: bh.instanceId, target: { kind: "player", playerId: defender.id },
});
if (!r.ok) {
if (/legs, not wings/.test(r.error)) refusals += 1;
continue;
}
const st = drain(r.state);
const a = st.players.find((p) => p.id === attacker.id)!;
expect(a.position).toEqual(st.players.find((p) => p.id === defender.id)!.position);
expect(st.turn.movementUsed).toBeGreaterThan(0);
rams += 1;
}
expect(refusals).toBeGreaterThan(0);
expect(rams).toBeGreaterThan(0);
});
});