Don't use component library for game boards...

frontend/package-lock.json

@@ -8,6 +8,7 @@
 			"name": "frontend",
 			"version": "0.0.1",
 			"dependencies": {
+				"@game-algorithms/connect-four-rust": "^0.0.1",
 				"@game-algorithms/o-x-rust": "^0.1.0"
 			},
 			"devDependencies": {
@@ -80,6 +81,12 @@
 				"node": "^12.22.0 || ^14.17.0 || >=16.0.0"
 			}
 		},
+		"node_modules/@game-algorithms/connect-four-rust": {
+			"version": "0.0.1",
+			"resolved": "https://git.koval.net/api/packages/cyclane/npm/%40game-algorithms%2Fconnect-four-rust/-/0.0.1/connect-four-rust-0.0.1.tgz",
+			"integrity": "sha512-XFVCupzmxi6lL9jfrETenwQwo7JDvGby8PB2jOfRuRpmGBZwgx9GQvc9euw+LwlGCXUhN8zYqKIdoU7IDfd6ng==",
+			"license": "GNU GPLv3"
+		},
 		"node_modules/@game-algorithms/o-x-rust": {
 			"version": "0.1.0",
 			"resolved": "https://git.koval.net/api/packages/cyclane/npm/%40game-algorithms%2Fo-x-rust/-/0.1.0/o-x-rust-0.1.0.tgz",
@@ -2927,6 +2934,11 @@
 				"strip-json-comments": "^3.1.1"
 			}
 		},
+		"@game-algorithms/connect-four-rust": {
+			"version": "0.0.1",
+			"resolved": "https://git.koval.net/api/packages/cyclane/npm/%40game-algorithms%2Fconnect-four-rust/-/0.0.1/connect-four-rust-0.0.1.tgz",
+			"integrity": "sha512-XFVCupzmxi6lL9jfrETenwQwo7JDvGby8PB2jOfRuRpmGBZwgx9GQvc9euw+LwlGCXUhN8zYqKIdoU7IDfd6ng=="
+		},
 		"@game-algorithms/o-x-rust": {
 			"version": "0.1.0",
 			"resolved": "https://git.koval.net/api/packages/cyclane/npm/%40game-algorithms%2Fo-x-rust/-/0.1.0/o-x-rust-0.1.0.tgz",

frontend/package.json

@@ -32,6 +32,7 @@
 	},
 	"type": "module",
 	"dependencies": {
-		"@game-algorithms/o-x-rust": "^0.1.0"
+		"@game-algorithms/o-x-rust": "^0.1.0",
+		"@game-algorithms/connect-four-rust": "^0.0.1"
 	}
 }

frontend/src/lib/components/o-x/OXBoard.svelte

@@ -0,0 +1,54 @@
+<script lang="ts">
+	import { type SvelteComponent, createEventDispatcher } from "svelte";
+
+	export let board: number[];
+	export let iconMap: Record<number, typeof SvelteComponent>;
+	export let disabled  = false;
+
+	const dispatch = createEventDispatcher();
+
+	/**
+	 * Generate handler function for board cell click
+	 *
+	 * @param idx Index of cell for event
+	 * @returns Handler function
+	 */
+	function handleClick(idx: number) {
+		return () => dispatch("click", {
+			idx
+		});
+	}
+</script>
+
+<div class="grid">
+	{#each board as b, idx}
+	<button disabled={b !== 0 || disabled} class="item" on:click={handleClick(idx)}>
+		<svelte:component this="{iconMap[b]}"/>
+	</button>
+	{/each}
+</div>
+
+<style>
+	.grid {
+		display: grid;
+		grid-template-columns: 1fr 1fr 1fr;
+		max-width: min(100%, 24rem);
+		border: 1px solid var(--cds-interactive-03);
+	}
+	button.item {
+		cursor: pointer;
+		aspect-ratio: 1/1;
+		background: none;
+		border: 2px solid var(--cds-interactive-03);
+		color: var(--cds-interactive-03);
+		transition: background 70ms cubic-bezier(0, 0, 0.38, 0.9),
+			color 70ms cubic-bezier(0, 0, 0.38, 0.9);
+	}
+	button.item:enabled:hover {
+		background-color: var(--cds-hover-tertiary);
+		color: var(--cds-inverse-01);
+	}
+	button.item:disabled {
+		cursor: not-allowed;
+	}
+</style>

frontend/src/lib/components/o-x/OXNoneIcon.svelte

@@ -2,7 +2,7 @@
 
 <style>
 	div {
-		width: 5rem;
-		height: 5rem;
+		width: 100%;
+		height: 100%;
 	}
 </style>

frontend/src/lib/components/o-x/OXOIcon.svelte

@@ -2,8 +2,7 @@
 
 <style>
 	h1 {
-		width: 5rem;
-		height: 5rem;
+		width: 100%;
 		text-align: center;
 		font-size: 4rem;
 	}

frontend/src/lib/components/o-x/OXXIcon.svelte

@@ -2,8 +2,7 @@
 
 <style>
 	h1 {
-		width: 5rem;
-		height: 5rem;
+		width: 100%;
 		text-align: center;
 		font-size: 4rem;
 	}

frontend/src/routes/index.svelte

@@ -2,6 +2,10 @@
 	import { Column, Grid, Link, Row } from "carbon-components-svelte";
 </script>
 
+<svelte:head>
+	<title>About</title>
+</svelte:head>
+
 <Grid>
 	<Row>
 		<Column>

frontend/src/routes/o-x.svelte

@@ -12,14 +12,15 @@
 		UnorderedList
 	} from "carbon-components-svelte";
 	import wasmInit, { count_empty, find_winner, get_score, predict } from "@game-algorithms/o-x-rust";
-	import OXNoneIcon from "$lib/components/OXNoneIcon.svelte";
-	import OXOIcon from "$lib/components/OXOIcon.svelte";
-	import OXXIcon from "$lib/components/OXXIcon.svelte";
+	import OXBoard from "$lib/components/o-x/OXBoard.svelte";
+	import OXNoneIcon from "$lib/components/o-x/OXNoneIcon.svelte";
+	import OXOIcon from "$lib/components/o-x/OXOIcon.svelte";
+	import OXXIcon from "$lib/components/o-x/OXXIcon.svelte";
 	import { onMount } from "svelte";
 
-	let board: number[][] = [];
-	for (let i = 0;i < 3;i++) {
-		board.push([0, 0, 0]);
+	let board: number[] = [];
+	for (let i = 0;i < 9;i++) {
+		board.push(0);
 	}
 
 	let turn = -1;
@@ -44,7 +45,7 @@
 	 * Complete a turn logic
 	 */
 	function completeTurn() {
-		const convertedBoard = Uint8Array.from(board.flat());
+		const convertedBoard = Uint8Array.from(board);
 		scores = [...scores, getBoardScore(board, human, bot, algorithm)];
 		const winner = find_winner(convertedBoard);
 		if (winner !== 0 || count_empty(convertedBoard) === 0) {
@@ -73,7 +74,7 @@
 		} else {
 			status = "Algorithm's turn!";
 			const p = predict(bot, human, bot === 1, convertedBoard, algorithm);
-			board[Math.floor(p / 3)][p % 3] = bot;
+			board[p] = bot;
 			completeTurn();
 		}
 	}
@@ -88,17 +89,17 @@
 	 * @returns The scores for the moves for each cell and player
 	 */
 	function getBoardScore(
-		board: number[][],
+		board: number[],
 		human: number,
 		bot: number,
 		algorithm: string
 	): [number | null, number | null][] {
 		return board.flat().map((v, i) => {
 			if (v === 0) {
-				const humanCopy = board.flat();
+				const humanCopy = board.slice();
 				humanCopy[i] = human;
 				const hUint8Array = Uint8Array.from(humanCopy);
-				const botCopy = board.flat();
+				const botCopy = board.slice();
 				botCopy[i] = bot;
 				const bUint8Array = Uint8Array.from(humanCopy);
 				return [
@@ -151,6 +152,10 @@
 	}
 </script>
 
+<svelte:head>
+	<title>Noughts & Crosses</title>
+</svelte:head>
+
 <Grid>
 	<Row>
 		<Column>
@@ -166,7 +171,7 @@
 				<ListItem>mm+d: minimax with depth</ListItem>
 			</UnorderedList>
 			<div class="selection">
-				<RadioButtonGroup disabled={turn !== -1} legendText="Algorithms" bind:selected={algorithm}>
+				<RadioButtonGroup disabled={turn !== -1} legendText="Algorithm" bind:selected={algorithm}>
 					<RadioButton labelText="sa" value="sa" />
 					<RadioButton labelText="sa+rd" value="sa+rd" />
 					<RadioButton labelText="sa+r-d" value="sa+r-d" />
@@ -183,8 +188,8 @@
 			<Button disabled={!loaded || turn !== -1} on:click={() => {
 				board = [];
 				scores = [];
-				for (let i = 0;i < 3;i++) {
-					board.push([0, 0, 0]);
+				for (let i = 0;i < 9;i++) {
+					board.push(0);
 				}
 				turn = 2;
 				human = Number(playAs === "O") + 1;
@@ -199,27 +204,19 @@
 			<h2>Board</h2>
 			<p>{status}</p>
 			{#if loaded}
-			<Grid>
-				{#each board as row, r}
-				<Row>
-					{#each row as col, c}
-					<Column sm={.1} style="border: 1px solid white;">
-						<Button
-							kind="tertiary"
-							iconDescription={col === 0 ? "Available" : col === 1 ? "Cross" : "Nought"}
-							icon={col === 0 ? OXNoneIcon : col === 1 ? OXXIcon : OXOIcon}
-							disabled={board[r][c] !== 0 || turn !== human}
-							on:click={() => {
-								board[r][c] = human;
+			<OXBoard
+				disabled={turn !== human}
+				board={board}
+				iconMap={{
+					0: OXNoneIcon,
+					1: OXXIcon,
+					2: OXOIcon
+				}}
+				on:click={event => {
+					board[event.detail.idx] = human;
 					completeTurn();
-								console.log(scores);
 				}}
 			/>
-					</Column>
-					{/each}
-				</Row>
-				{/each}
-			</Grid>
 			{:else}
 			<h3>Loading...</h3>
 			{/if}
@@ -248,7 +245,7 @@
 						key: "move",
 						value: "Move"
 					},
-					...board.flat().map((_, c) => {
+					...board.map((_, c) => {
 						return {
 							key: c.toString(),
 							value: (c + 1).toString()