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Merged
Hyaxon merged 3 commits into from
Oct 15, 2026
Merged

Feat/tic tac toe #25

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07554ca
feat: added tic-tac-toe game
Hyaxon Oct 15, 2026
a34a93e
fix: tic-tac-toe widget order
Hyaxon Oct 15, 2026
70ed7c7
fix: remove tooltip on mobile
Hyaxon Oct 15, 2026
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367 changes: 367 additions & 0 deletions src/components/ui/games/TicTacToe.astro
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Original file line number Diff line number Diff line change
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---
import ItemBox from "../ItemBox.astro";
import type { Mark } from "../../../lib/games/tic-tac-toe/engine";
import type { Difficulty } from "../../../lib/games/tic-tac-toe/cpu";

interface Props {
title?: string;
difficulty?: Difficulty;
humanMark?: Mark;
}

const { title, difficulty = "easy", humanMark = "X" } = Astro.props;
const difficulties = ["easy", "medium", "hard"] as const;
// Initial markup only; the browser controller will render game state later.
const board = ["", "", "", "", "", "", "", "", ""];
---

<ItemBox title={title}>
<div
class="tic-tac-toe"
data-tic-tac-toe
data-difficulty={difficulty}
data-human-mark={humanMark}
>
<div class="game-layout">
<div class="game-board" role="group" aria-label="Tic-tac-toe board">
{board.map((mark, index) => (
<button
class="game-square"
type="button"
data-square={index}
aria-label={`Row ${Math.floor(index / 3) + 1}, column ${(index % 3) + 1}: ${mark || "empty"}`}
>
<span aria-hidden="true">{mark}</span>
</button>
))}
</div>

<div class="game-sidebar">
<div class="game-score" role="group" aria-label="Your score">
<span>
<span aria-label="Wins">W:</span> <span data-wins>0</span>
</span>
<span>
<span aria-label="Losses">L:</span> <span data-losses>0</span>
</span>
</div>

<fieldset class="game-difficulty">
<legend>Difficulty</legend>

<div class="game-difficulty__buttons">
{difficulties.map((level) => (
<div class="game-difficulty__option">
<button
type="button"
data-difficulty-option={level}
aria-pressed={difficulty === level}
aria-describedby={
level === "hard" ? "hard-mode-info" : undefined
}
>
{level[0].toUpperCase() + level.slice(1)}
</button>

{level === "hard" && (
<div
id="hard-mode-info"
class="game-difficulty__tooltip"
role="tooltip"
>
Hard mode uses{" "}
<a
href="https://en.wikipedia.org/wiki/Minimax"
target="_blank"
rel="noopener noreferrer"
>
minimax
</a>{" "}
to evaluate possible moves and choose the optimal play.
</div>
)}
</div>
))}
</div>
</fieldset>

<p class="game-shape">
Your Shape: <span data-human-mark-label>{humanMark}</span>
</p>
<div class="game-status" role="status" aria-live="polite">
<span data-status>Your Turn</span>
{/* Reserve the longest message's wrapped height before a round ends. */}
<span class="game-status__sizer" aria-hidden="true">
You won! Click the board to play again.
</span>
</div>
</div>
</div>
</div>
</ItemBox>

<script>
import { initTicTacToe } from "../../../lib/client/tic-tac-toe";

document
.querySelectorAll<HTMLElement>("[data-tic-tac-toe]")
.forEach((root) => initTicTacToe(root));
</script>

<style>
.tic-tac-toe {
container-type: inline-size;
}

.game-layout {
display: grid;
grid-template-columns: minmax(0, 16rem) minmax(8.5rem, 1fr);
align-items: stretch;
gap: var(--space-6);
}

.game-board {
display: grid;
grid-template-columns: repeat(3, minmax(0, 1fr));
grid-template-rows: repeat(3, minmax(0, 1fr));
gap: var(--space-2);
width: min(100%, 16rem);
aspect-ratio: 1;
place-self: start;
}

button {
border: var(--border-width) solid var(--color-border);
border-radius: 0;
background: var(--color-bg);
color: var(--color-text);
font: inherit;
cursor: pointer;
}

button:hover {
background: var(--color-panel);
border-color: var(--color-text);
}

button:focus-visible {
outline: 2px solid var(--color-text);
outline-offset: 3px;
}

.game-square {
display: grid;
place-items: center;
min-width: 0;
min-height: 44px;
padding: 0;
font-size: clamp(2rem, 7cqi, 3rem);
line-height: 1;
}

.game-sidebar {
display: flex;
flex-direction: column;
align-items: flex-start;
justify-content: space-between;
gap: var(--space-2);
min-width: 0;
font-size: 0.8125rem;
line-height: 1.5;
text-align: left;
}

.game-score {
display: flex;
justify-content: flex-start;
gap: var(--space-6);
width: 100%;
padding: var(--space-1) var(--space-3);
border: var(--border-width) solid var(--color-border);
font-size: 1rem;
white-space: nowrap;
color: var(--color-text-muted);
}

[data-wins] {
color: var(--color-code-string);
}

[data-losses] {
color: var(--color-code-deleted);
}

.game-difficulty {
min-width: 0;
margin: 0;
padding: 0;
border: 0;
}

.game-difficulty legend {
margin-bottom: var(--space-2);
padding: 0;
color: var(--color-text-muted);
}

.game-difficulty__buttons {
display: flex;
flex-direction: column;
align-items: flex-start;
gap: var(--space-2);
}

.game-difficulty__option {
position: relative;
display: inline-flex;
width: max-content;
max-width: 100%;
}

/*
* Invisible bridge between the Hard button and its tooltip.
* This prevents the tooltip from closing while the cursor
* crosses the small gap between them.
*/
.game-difficulty__option:has(.game-difficulty__tooltip)::after {
content: "";
position: absolute;
top: 0;
left: 100%;
width: var(--space-3);
height: 100%;
}

.game-difficulty button {
min-height: 32px;
padding: var(--space-1) var(--space-4);
font-size: 1rem;
white-space: nowrap;
}

.game-difficulty button[aria-pressed="true"] {
border-color: var(--color-text);
background: var(--color-text);
color: var(--color-bg);
}

.game-difficulty__tooltip {
position: absolute;
z-index: 10;
top: 50%;
left: calc(100% + var(--space-3));
width: 15rem;
padding: var(--space-3);
border: var(--border-width) solid var(--color-border);
background: var(--color-panel);
box-shadow: 0 4px 12px #0006;
color: var(--color-text-muted);
font-size: 0.75rem;
line-height: 1.6;
text-align: left;

opacity: 0;
visibility: hidden;
pointer-events: none;
transform: translateY(-50%);

transition:
opacity var(--duration-fast) var(--ease-standard),
visibility var(--duration-fast) var(--ease-standard);
}

.game-difficulty__tooltip a {
color: var(--color-text);
text-decoration: underline;
text-underline-offset: 0.2em;
}

.game-difficulty__tooltip a:hover {
color: var(--color-code-function);
}

.game-difficulty__tooltip a:focus-visible {
outline: 2px solid var(--color-text);
outline-offset: 2px;
}

/*
* Keep the tooltip open when:
* - the difficulty option is hovered
* - the button has keyboard focus
* - the link inside the tooltip has focus
*/
.game-difficulty__option:hover .game-difficulty__tooltip,
.game-difficulty__option:focus-within .game-difficulty__tooltip {
opacity: 1;
visibility: visible;
pointer-events: auto;
}

.game-shape,
.game-status {
margin: 0;
}

.game-status {
display: grid;
align-items: start;
align-self: stretch;
flex-shrink: 0;
min-height: 3em;
color: var(--color-code-function);
}

.game-status > span {
grid-area: 1 / 1;
}

.game-status__sizer {
visibility: hidden;
pointer-events: none;
user-select: none;
}

.game-shape {
color: var(--color-text-muted);
}

[data-human-mark-label] {
color: var(--color-code-constant);
}

@media (max-width: 48rem) {
.game-layout {
grid-template-columns: minmax(0, 1fr);
gap: var(--space-4);
}

.game-sidebar {
gap: var(--space-3);
}

.game-difficulty__buttons {
flex-direction: row;
flex-wrap: wrap;
}

.game-difficulty button {
min-height: 44px;
padding-inline: var(--space-3);
}

.game-difficulty__tooltip {
display: none;
}

.game-difficulty__option:has(.game-difficulty__tooltip)::after {
display: none;
}
}

@media (pointer: coarse) {
.game-difficulty button {
min-height: 44px;
}
}
</style>
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