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Refactor playCard to options-based API instead of overloaded positional args

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This commit is contained in:
Jared Miller 2026-02-23 19:20:35 -05:00
parent 7e46b190f1
commit 886b744db8
Signed by: shmup
GPG key ID: 22B5C6D66A38B06C
2 changed files with 18 additions and 24 deletions
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25
src/state.js
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@ -113,28 +113,9 @@ export function drawCards(state, playerIndexOrCount, count) {
};
}
export function playCard(
state,
playerIndexOrHandIndex,
handIndexOrTarget,
targetIndex,
) {
// playCard(state, handIndex) — old form, targets enemy[0]
// playCard(state, playerIndex, handIndex, targetIndex) — new form
let playerIndex, handIndex, enemyIndex;
if (handIndexOrTarget === undefined) {
playerIndex = 0;
handIndex = playerIndexOrHandIndex;
enemyIndex = 0;
} else if (targetIndex === undefined) {
playerIndex = 0;
handIndex = playerIndexOrHandIndex;
enemyIndex = handIndexOrTarget;
} else {
playerIndex = playerIndexOrHandIndex;
handIndex = handIndexOrTarget;
enemyIndex = targetIndex;
}
export function playCard(state, handIndex, opts = {}) {
const playerIndex = opts.playerIndex ?? 0;
const enemyIndex = opts.targetIndex ?? 0;
const player = state.players[playerIndex];
const cardId = player.hand[handIndex];

17
src/state.test.js
View file

@ -175,7 +175,7 @@ describe("playCard - indexed player and enemy", () => {
let state = createCombatState(["ironclad", "ironclad"], ["jaw_worm"]);
state = drawCards(state, 1, 5);
const cardIndex = state.players[1].hand.indexOf("strike_r");
const next = playCard(state, 1, cardIndex, 0);
const next = playCard(state, cardIndex, { playerIndex: 1, targetIndex: 0 });
expect(next.players[1].energy).toBe(2);
expect(next.players[1].hand).toHaveLength(4);
// player 0 unaffected
@ -191,9 +191,22 @@ describe("playCard - indexed player and enemy", () => {
players: [state.players[0], zeroEnergy],
};
const cardIndex = state.players[1].hand.indexOf("strike_r");
const result = playCard(state, 1, cardIndex, 0);
const result = playCard(state, cardIndex, {
playerIndex: 1,
targetIndex: 0,
});
expect(result).toBeNull();
});
test("playCard with targetIndex: 1 targets the second enemy", () => {
let state = createCombatState(["ironclad"], ["jaw_worm", "jaw_worm"]);
state = drawCards(state, 0, 5);
const cardIndex = state.players[0].hand.indexOf("strike_r");
const enemy1HpBefore = state.enemies[1].hp;
const next = playCard(state, cardIndex, { targetIndex: 1 });
expect(next.enemies[1].hp).toBeLessThan(enemy1HpBefore);
expect(next.enemies[0].hp).toBe(state.enemies[0].hp);
});
});
describe("endTurn - indexed player", () => {