| 1 |
(function () { |
| 2 |
'use strict'; |
| 3 |
|
| 4 |
var LINES = [ |
| 5 |
[0,1,2],[3,4,5],[6,7,8], // rows |
| 6 |
[0,3,6],[1,4,7],[2,5,8], // cols |
| 7 |
[0,4,8],[2,4,6] // diagonals |
| 8 |
]; |
| 9 |
|
| 10 |
function checkWinner(board) { |
| 11 |
for (var i = 0; i < LINES.length; i++) { |
| 12 |
var a = LINES[i][0], b = LINES[i][1], c = LINES[i][2]; |
| 13 |
if (board[a] && board[a] === board[b] && board[a] === board[c]) { |
| 14 |
return { sym: board[a], line: LINES[i] }; |
| 15 |
} |
| 16 |
} |
| 17 |
return null; |
| 18 |
} |
| 19 |
|
| 20 |
function isFull(board) { |
| 21 |
return board.every(function (c) { return c !== ''; }); |
| 22 |
} |
| 23 |
|
| 24 |
/* Minimax for hard AI */ |
| 25 |
function minimax(board, depth, isMax, aiSym, playerSym) { |
| 26 |
var w = checkWinner(board); |
| 27 |
if (w) return w.sym === aiSym ? 10 - depth : depth - 10; |
| 28 |
if (isFull(board)) return 0; |
| 29 |
|
| 30 |
var best = isMax ? -Infinity : Infinity; |
| 31 |
for (var i = 0; i < 9; i++) { |
| 32 |
if (board[i] !== '') continue; |
| 33 |
board[i] = isMax ? aiSym : playerSym; |
| 34 |
var score = minimax(board, depth + 1, !isMax, aiSym, playerSym); |
| 35 |
board[i] = ''; |
| 36 |
best = isMax ? Math.max(best, score) : Math.min(best, score); |
| 37 |
} |
| 38 |
return best; |
| 39 |
} |
| 40 |
|
| 41 |
function bestMoveHard(board, aiSym, playerSym) { |
| 42 |
var best = -Infinity, move = -1; |
| 43 |
for (var i = 0; i < 9; i++) { |
| 44 |
if (board[i] !== '') continue; |
| 45 |
board[i] = aiSym; |
| 46 |
var score = minimax(board, 0, false, aiSym, playerSym); |
| 47 |
board[i] = ''; |
| 48 |
if (score > best) { best = score; move = i; } |
| 49 |
} |
| 50 |
return move; |
| 51 |
} |
| 52 |
|
| 53 |
function bestMoveMedium(board, aiSym, playerSym) { |
| 54 |
// Win if possible |
| 55 |
for (var i = 0; i < 9; i++) { |
| 56 |
if (board[i] !== '') continue; |
| 57 |
board[i] = aiSym; |
| 58 |
if (checkWinner(board)) { board[i] = ''; return i; } |
| 59 |
board[i] = ''; |
| 60 |
} |
| 61 |
// Block player |
| 62 |
for (var j = 0; j < 9; j++) { |
| 63 |
if (board[j] !== '') continue; |
| 64 |
board[j] = playerSym; |
| 65 |
if (checkWinner(board)) { board[j] = ''; return j; } |
| 66 |
board[j] = ''; |
| 67 |
} |
| 68 |
// Center |
| 69 |
if (board[4] === '') return 4; |
| 70 |
// Random |
| 71 |
return bestMoveRandom(board); |
| 72 |
} |
| 73 |
|
| 74 |
function bestMoveRandom(board) { |
| 75 |
var empties = []; |
| 76 |
for (var i = 0; i < 9; i++) { |
| 77 |
if (board[i] === '') empties.push(i); |
| 78 |
} |
| 79 |
return empties[Math.floor(Math.random() * empties.length)]; |
| 80 |
} |
| 81 |
|
| 82 |
function initBlock(root) { |
| 83 |
var opts = {}; |
| 84 |
try { opts = JSON.parse(root.getAttribute('data-opts') || '{}'); } catch (e) {} |
| 85 |
|
| 86 |
var playerSym = opts.playerSymbol || 'X'; |
| 87 |
var aiSym = opts.aiSymbol || 'O'; |
| 88 |
var mode = opts.defaultMode || 'ai'; // 'ai' | 'pvp' |
| 89 |
var aiDiff = opts.aiDifficulty || 'hard'; |
| 90 |
var showScore = opts.showScore !== false; |
| 91 |
var accentColor = opts.accentColor || '#6366f1'; |
| 92 |
var xColor = opts.xColor || '#ef4444'; |
| 93 |
var oColor = opts.oColor || '#3b82f6'; |
| 94 |
var cellBg = opts.cellBg || '#ffffff'; |
| 95 |
var winLineBg = opts.winLineBg || '#22c55e'; |
| 96 |
var gridLine = opts.gridLine || '#d1d5db'; |
| 97 |
var sectionBg = opts.sectionBg || '#eef2ff'; |
| 98 |
var cardBg = opts.cardBg || '#ffffff'; |
| 99 |
var titleColor = opts.titleColor || '#312e81'; |
| 100 |
var fontSize = opts.fontSize || 28; |
| 101 |
var subtitleSize = opts.subtitleSize || 15; |
| 102 |
|
| 103 |
// Unique ID for localStorage |
| 104 |
var uid = root.getAttribute('data-uid') || root.id || Math.random().toString(36).slice(2); |
| 105 |
|
| 106 |
// Score persistence |
| 107 |
var storeKey = 'bkbg_ttt_' + uid; |
| 108 |
var stored = {}; |
| 109 |
try { stored = JSON.parse(localStorage.getItem(storeKey) || '{}'); } catch (e) {} |
| 110 |
var score = { |
| 111 |
player: parseInt(stored.player || 0, 10), |
| 112 |
ai: parseInt(stored.ai || 0, 10), |
| 113 |
draws: parseInt(stored.draws || 0, 10) |
| 114 |
}; |
| 115 |
|
| 116 |
// Game state |
| 117 |
var board = ['','','','','','','','','']; |
| 118 |
var currentPlayer = playerSym; // who plays next (pvp uses player1/player2) |
| 119 |
var player1 = playerSym, player2 = aiSym; |
| 120 |
var gameOver = false; |
| 121 |
var aiThinking = false; |
| 122 |
var currentMode = mode; |
| 123 |
|
| 124 |
// ----- Render helpers ----- |
| 125 |
function saveScore() { |
| 126 |
try { localStorage.setItem(storeKey, JSON.stringify(score)); } catch (e) {} |
| 127 |
} |
| 128 |
|
| 129 |
function render() { |
| 130 |
root.innerHTML = ''; |
| 131 |
root.style.background = sectionBg; |
| 132 |
root.style.borderRadius = '16px'; |
| 133 |
root.style.padding = '28px 20px'; |
| 134 |
root.style.textAlign = 'center'; |
| 135 |
|
| 136 |
var wrap = document.createElement('div'); |
| 137 |
wrap.className = 'bkbg-ttt-wrap'; |
| 138 |
wrap.style.padding = '0'; |
| 139 |
|
| 140 |
// Title |
| 141 |
var titleEl = root.parentElement && root.parentElement.querySelector('.bkbg-ttt-title-ext'); |
| 142 |
// Title/Subtitle are output by save() outside .bkbg-ttt-app — just render score + board here |
| 143 |
|
| 144 |
// Score |
| 145 |
if (showScore) { |
| 146 |
var scoreRow = document.createElement('div'); |
| 147 |
scoreRow.className = 'bkbg-ttt-score'; |
| 148 |
var scoreItems = [ |
| 149 |
{ label: currentMode === 'ai' ? 'You' : 'Player 1', val: score.player, color: xColor }, |
| 150 |
{ label: 'Draw', val: score.draws, color: '#6b7280' }, |
| 151 |
{ label: currentMode === 'ai' ? 'AI' : 'Player 2', val: score.ai, color: oColor } |
| 152 |
]; |
| 153 |
scoreItems.forEach(function (s) { |
| 154 |
var box = document.createElement('div'); |
| 155 |
box.className = 'bkbg-ttt-score-box'; |
| 156 |
box.style.background = cardBg; |
| 157 |
box.style.borderTop = '4px solid ' + s.color; |
| 158 |
var val = document.createElement('div'); |
| 159 |
val.className = 'bkbg-ttt-score-val'; |
| 160 |
val.style.color = s.color; |
| 161 |
val.textContent = s.val; |
| 162 |
var lbl = document.createElement('div'); |
| 163 |
lbl.className = 'bkbg-ttt-score-lbl'; |
| 164 |
lbl.style.color = titleColor; |
| 165 |
lbl.textContent = s.label; |
| 166 |
box.appendChild(val); |
| 167 |
box.appendChild(lbl); |
| 168 |
scoreRow.appendChild(box); |
| 169 |
}); |
| 170 |
wrap.appendChild(scoreRow); |
| 171 |
} |
| 172 |
|
| 173 |
// Mode toggle |
| 174 |
var modeRow = document.createElement('div'); |
| 175 |
modeRow.className = 'bkbg-ttt-mode-row'; |
| 176 |
['ai','pvp'].forEach(function (m) { |
| 177 |
var btn = document.createElement('button'); |
| 178 |
btn.className = 'bkbg-ttt-mode-btn'; |
| 179 |
btn.textContent = m === 'ai' ? 'vs AI' : 'vs Player'; |
| 180 |
btn.style.borderColor = accentColor; |
| 181 |
btn.style.background = currentMode === m ? accentColor : 'transparent'; |
| 182 |
btn.style.color = currentMode === m ? '#fff' : accentColor; |
| 183 |
btn.addEventListener('click', function () { |
| 184 |
if (currentMode !== m) { currentMode = m; resetGame(); } |
| 185 |
}); |
| 186 |
modeRow.appendChild(btn); |
| 187 |
}); |
| 188 |
wrap.appendChild(modeRow); |
| 189 |
|
| 190 |
// Status |
| 191 |
var status = document.createElement('div'); |
| 192 |
status.className = 'bkbg-ttt-status'; |
| 193 |
status.id = 'bkbg-ttt-status-' + uid; |
| 194 |
status.style.background = accentColor; |
| 195 |
status.style.color = '#fff'; |
| 196 |
updateStatusEl(status); |
| 197 |
wrap.appendChild(status); |
| 198 |
|
| 199 |
// Board |
| 200 |
var boardEl = document.createElement('div'); |
| 201 |
boardEl.className = 'bkbg-ttt-board'; |
| 202 |
boardEl.id = 'bkbg-ttt-board-' + uid; |
| 203 |
|
| 204 |
var result = checkWinner(board); |
| 205 |
var winLine = result ? result.line : null; |
| 206 |
|
| 207 |
for (var i = 0; i < 9; i++) { |
| 208 |
(function (idx) { |
| 209 |
var cell = document.createElement('div'); |
| 210 |
cell.className = 'bkbg-ttt-cell' + (board[idx] ? ' bkbg-ttt-taken' : ''); |
| 211 |
cell.style.background = cellBg; |
| 212 |
cell.style.borderColor = gridLine; |
| 213 |
|
| 214 |
if (winLine && winLine.indexOf(idx) !== -1) { |
| 215 |
cell.classList.add('bkbg-ttt-win'); |
| 216 |
cell.style.background = winLineBg; |
| 217 |
} |
| 218 |
|
| 219 |
if (board[idx]) { |
| 220 |
var sym = document.createElement('span'); |
| 221 |
sym.textContent = board[idx]; |
| 222 |
sym.style.color = board[idx] === playerSym ? xColor : oColor; |
| 223 |
cell.appendChild(sym); |
| 224 |
} |
| 225 |
|
| 226 |
cell.addEventListener('click', function () { onCellClick(idx); }); |
| 227 |
boardEl.appendChild(cell); |
| 228 |
})(i); |
| 229 |
} |
| 230 |
wrap.appendChild(boardEl); |
| 231 |
|
| 232 |
// AI thinking dots |
| 233 |
var thinkEl = document.createElement('div'); |
| 234 |
thinkEl.id = 'bkbg-ttt-think-' + uid; |
| 235 |
thinkEl.style.height = '24px'; |
| 236 |
thinkEl.style.marginBottom = '8px'; |
| 237 |
if (aiThinking) { |
| 238 |
var dots = document.createElement('div'); |
| 239 |
dots.className = 'bkbg-ttt-thinking'; |
| 240 |
for (var d = 0; d < 3; d++) { |
| 241 |
var sp = document.createElement('span'); |
| 242 |
sp.style.background = accentColor; |
| 243 |
dots.appendChild(sp); |
| 244 |
} |
| 245 |
thinkEl.appendChild(dots); |
| 246 |
} |
| 247 |
wrap.appendChild(thinkEl); |
| 248 |
|
| 249 |
// Actions |
| 250 |
var actions = document.createElement('div'); |
| 251 |
actions.className = 'bkbg-ttt-actions'; |
| 252 |
|
| 253 |
var resetBtn = document.createElement('button'); |
| 254 |
resetBtn.className = 'bkbg-ttt-btn'; |
| 255 |
resetBtn.style.background = accentColor; |
| 256 |
resetBtn.textContent = 'New Game'; |
| 257 |
resetBtn.addEventListener('click', function () { resetGame(); }); |
| 258 |
|
| 259 |
var clearBtn = document.createElement('button'); |
| 260 |
clearBtn.className = 'bkbg-ttt-btn bkbg-ttt-btn-outline'; |
| 261 |
clearBtn.style.borderColor = '#6b7280'; |
| 262 |
clearBtn.style.color = '#6b7280'; |
| 263 |
clearBtn.textContent = 'Reset Score'; |
| 264 |
clearBtn.addEventListener('click', function () { |
| 265 |
score = { player: 0, ai: 0, draws: 0 }; |
| 266 |
saveScore(); |
| 267 |
render(); |
| 268 |
}); |
| 269 |
|
| 270 |
actions.appendChild(resetBtn); |
| 271 |
actions.appendChild(clearBtn); |
| 272 |
wrap.appendChild(actions); |
| 273 |
|
| 274 |
root.appendChild(wrap); |
| 275 |
} |
| 276 |
|
| 277 |
function updateStatusEl(el) { |
| 278 |
if (!el) return; |
| 279 |
var result = checkWinner(board); |
| 280 |
if (result) { |
| 281 |
var sym = result.sym; |
| 282 |
if (sym === playerSym) { |
| 283 |
el.textContent = currentMode === 'ai' ? '🎉 You Win!' : '🎉 Player 1 Wins!'; |
| 284 |
} else { |
| 285 |
el.textContent = currentMode === 'ai' ? '🤖 AI Wins!' : '🎉 Player 2 Wins!'; |
| 286 |
} |
| 287 |
} else if (isFull(board)) { |
| 288 |
el.textContent = "It's a Draw!"; |
| 289 |
} else { |
| 290 |
if (currentMode === 'ai') { |
| 291 |
el.textContent = currentPlayer === playerSym ? 'Your turn (' + playerSym + ')' : 'AI thinking…'; |
| 292 |
} else { |
| 293 |
el.textContent = (currentPlayer === player1 ? 'Player 1' : 'Player 2') + ' — ' + currentPlayer; |
| 294 |
} |
| 295 |
} |
| 296 |
} |
| 297 |
|
| 298 |
function onCellClick(idx) { |
| 299 |
if (gameOver || aiThinking || board[idx] !== '') return; |
| 300 |
if (currentMode === 'ai' && currentPlayer !== playerSym) return; |
| 301 |
|
| 302 |
placeSymbol(idx, currentPlayer); |
| 303 |
} |
| 304 |
|
| 305 |
function placeSymbol(idx, sym) { |
| 306 |
board[idx] = sym; |
| 307 |
var result = checkWinner(board); |
| 308 |
|
| 309 |
if (result) { |
| 310 |
gameOver = true; |
| 311 |
if (result.sym === playerSym) score.player++; |
| 312 |
else score.ai++; |
| 313 |
saveScore(); |
| 314 |
render(); |
| 315 |
return; |
| 316 |
} |
| 317 |
|
| 318 |
if (isFull(board)) { |
| 319 |
gameOver = true; |
| 320 |
score.draws++; |
| 321 |
saveScore(); |
| 322 |
render(); |
| 323 |
return; |
| 324 |
} |
| 325 |
|
| 326 |
// Switch turn |
| 327 |
currentPlayer = (currentPlayer === player1) ? player2 : player1; |
| 328 |
render(); |
| 329 |
|
| 330 |
if (currentMode === 'ai' && currentPlayer === aiSym && !gameOver) { |
| 331 |
scheduleAI(); |
| 332 |
} |
| 333 |
} |
| 334 |
|
| 335 |
function scheduleAI() { |
| 336 |
aiThinking = true; |
| 337 |
render(); |
| 338 |
var delay = aiDiff === 'easy' ? 200 : (aiDiff === 'medium' ? 350 : 550); |
| 339 |
setTimeout(function () { |
| 340 |
aiThinking = false; |
| 341 |
var move; |
| 342 |
if (aiDiff === 'hard') move = bestMoveHard(board.slice(), aiSym, playerSym); |
| 343 |
else if (aiDiff === 'medium') move = bestMoveMedium(board.slice(), aiSym, playerSym); |
| 344 |
else move = bestMoveRandom(board); |
| 345 |
|
| 346 |
if (move !== undefined && move !== -1) { |
| 347 |
placeSymbol(move, aiSym); |
| 348 |
} |
| 349 |
}, delay); |
| 350 |
} |
| 351 |
|
| 352 |
function resetGame() { |
| 353 |
board = ['','','','','','','','','']; |
| 354 |
currentPlayer = player1; |
| 355 |
gameOver = false; |
| 356 |
aiThinking = false; |
| 357 |
render(); |
| 358 |
} |
| 359 |
|
| 360 |
resetGame(); |
| 361 |
} |
| 362 |
|
| 363 |
function init() { |
| 364 |
document.querySelectorAll('.bkbg-ttt-app').forEach(function (root) { |
| 365 |
initBlock(root); |
| 366 |
}); |
| 367 |
} |
| 368 |
|
| 369 |
if (document.readyState === 'loading') { |
| 370 |
document.addEventListener('DOMContentLoaded', init); |
| 371 |
} else { |
| 372 |
init(); |
| 373 |
} |
| 374 |
})(); |
| 375 |
|
