1 files changed, 201 insertions, 0 deletions
diff --git a/pub/blankplays.js b/pub/blankplays.js
new file mode 100644
index 0000000..4dc05ee
--- /dev/null
+++ b/pub/blankplays.js
@@ -0,0 +1,201 @@
+'use strict';
+
+const N = 15; // board size
+
+let lexicon = 'nwl23';
+
+function updateBoardSize() {
+	let board = document.getElementById('board');
+	// sucks for desktop zooming, but there's no way around it.
+	let width = innerWidth;
+	let height = innerHeight;
+	let boardSize = Math.min(width - 20, Math.floor(height * 0.6));
+	let fontSize = (boardSize / N - 4) * 0.6;
+	board.style.fontSize = fontSize + 'px';
+	board.style.width = boardSize + 'px';
+	board.style.height = boardSize + 'px';
+	let selectContainer = document.getElementById('select-container');
+	selectContainer.style.fontSize = fontSize + 'px';
+	selectContainer.style.width = boardSize + 'px';
+	selectContainer.style.height = boardSize / N * 2 + 'px';
+}
+
+const DOUBLE_LETTER = 'double-letter';
+const TRIPLE_LETTER = 'triple-letter';
+const DOUBLE_WORD = 'double-word';
+const TRIPLE_WORD = 'triple-word';
+
+function getBonus(row, col) {
+	row = Math.min(row, N-1 - row);
+	col = Math.min(col, N-1 - col);
+	let id = Math.min(row * N + col, col * N + row);
+	if (id == 0 || id == 7) {
+		return TRIPLE_WORD;
+	} else if (id == N+5 || id == 5*N+5) {
+		return TRIPLE_LETTER;
+	} else if (id == 3 || id == 2*N+6 || id == 3*N+7 || id == 6*N+6) {
+		return DOUBLE_LETTER;
+	} else if (id == 7*N+7 || id == N+1 || id == 2*N+2 || id == 3*N+3 || id == 4*N+4) {
+		return DOUBLE_WORD;
+	} else {
+		return '';
+	}
+}
+
+function pointValue(letter) {
+	return {
+		'A': 1, 'B': 3, 'C': 3, 'D': 2, 'E': 1,
+		'F': 4, 'G': 2, 'H': 4, 'I': 1, 'J': 8,
+		'K': 5, 'L': 1, 'M': 3, 'N': 1, 'O': 1,
+		'P': 3, 'Q': 10,'R': 1, 'S': 1, 'T': 1,
+		'U': 1, 'V': 4, 'W': 4, 'X': 8, 'Y': 4,
+		'Z': 10,
+	}[letter];
+}
+
+let boardSquareElems = [];
+
+function makeTile(container, letter, showPointValue) {
+	let tile = document.createElement('span');
+	tile.classList.add('tile');
+	let blank = false;
+	if (letter === letter.toLowerCase()) {
+		blank = true;
+	}
+	let text = document.createElement('span');
+	text.appendChild(document.createTextNode(letter.toUpperCase()));
+	let points = document.createElement('span');
+	if (showPointValue)
+		points.appendChild(document.createTextNode(blank ? '0' : pointValue(letter) + ''));
+	points.classList.add('point-value');
+	if (blank)
+		text.classList.add('blank');
+	tile.appendChild(text);
+	container.appendChild(tile);
+	container.appendChild(points);
+}
+
+function putTile(row, col, letter) {
+	let squareElem = boardSquareElems[row][col];
+	makeTile(squareElem, letter, true);
+}
+
+function selectTile(elem, row, col) {
+	deselectTile();
+	elem.classList.add('selected');
+	document.getElementById('select').style.display = 'block';
+}
+
+function deselectTile() {
+	let selected = document.querySelector('.selected');
+	if (selected)
+		selected.classList.remove('selected');
+	for (let tile of document.querySelectorAll('.tile.possible')) {
+		tile.classList.remove('possible');
+	}
+	document.getElementById('select').style.display = 'none';
+}
+
+function clickedSquare(highlight, row, col) {
+	return (e) => {
+		if (e.button === 0) {
+			if (highlight.classList.contains('selected')) {
+				deselectTile();
+			} else {
+				selectTile(highlight, row, col);
+			}
+			e.preventDefault();
+		} else if (e.button === 2) {
+			if (highlight.classList.contains('nothing')) {
+				highlight.classList.remove('nothing');
+			} else {
+				highlight.classList.add('nothing');
+				if (highlight.classList.contains('selected'))
+					deselectTile();
+			}
+			e.preventDefault();
+		}
+	};
+}
+
+// TODO : error handling
+async function loadChallenge(id) {
+	let result = await fetch(`challenges-${lexicon}/${id}.txt`);
+	let body = await result.text();
+	let lines = body.split('\n');
+	let board = [];
+	for (let row = 0; row < 15; row++) {
+		board.push([]);
+		for (let col = 0; col < 15; col++) {
+			board[row].push(lines[row][col]);
+		}
+	}
+	for (let row = 0; row < 15; row++) {
+		for (let col = 0; col < 15; col++) {
+			let letter = board[row][col];
+			if (letter !== '.') {
+				putTile(row, col, letter);
+				continue;
+			}
+			let neighbours = [];
+			if (row > 0)
+				neighbours.push(board[row-1][col]);
+			if (row < N-1)
+				neighbours.push(board[row+1][col]);
+			if (col > 0)
+				neighbours.push(board[row][col-1]);
+			if (col < N-1)
+				neighbours.push(board[row][col+1]);
+			if (neighbours.filter((x) => x !== '.').length === 0) {
+				// not connected
+				continue;
+			}
+			let highlight = document.createElement('div');
+			highlight.classList.add('highlight');
+			boardSquareElems[row][col].appendChild(highlight);
+			highlight.addEventListener('contextmenu', (e) => e.preventDefault());
+			highlight.addEventListener('mousedown', clickedSquare(highlight, row, col));
+		}
+	}
+}
+
+function startup() {
+	updateBoardSize();
+	for (let row = 0; row < N; row++) {
+		let rowElem = document.createElement('div');
+		rowElem.classList.add('board-row');
+		board.appendChild(rowElem);
+		boardSquareElems.push([]);
+		for (let col = 0; col < N; col++) {
+			let squareElem = document.createElement('div');
+			squareElem.classList.add('board-square');
+			let bonus = getBonus(row, col);
+			if (bonus) squareElem.classList.add(bonus);
+			rowElem.appendChild(squareElem);
+			boardSquareElems[row].push(squareElem);
+		}
+	}
+	let selectContainer = document.getElementById('select-container');
+	for (let row = 0; row < 2; row++) {
+		let rowContainer = selectContainer.querySelectorAll('.select-container-row')[row];
+		for (let i = row*N; i < (row+1)*N; i++) {
+			let tiles = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
+			if (i >= tiles.length) break;
+			let elem = document.createElement('span');
+			elem.classList.add('select-tile-container');
+			makeTile(elem, tiles[i], false);
+			let tileElem = elem.querySelector('.tile');
+			elem.addEventListener('click', () => {
+				if (tileElem.classList.contains('possible'))
+					tileElem.classList.remove('possible');
+				else
+					tileElem.classList.add('possible');
+			});
+			rowContainer.appendChild(elem);
+		}
+	}
+	loadChallenge('00000');
+}
+
+window.addEventListener('load', startup);
+window.addEventListener('resize', updateBoardSize);