Advanced AI with expert strategies and 2-step lookahead
// ==UserScript==
// @name linuxDo 2048 AI玩家
// @namespace http://tampermonkey.net/
// @version 1.0
// @description Advanced AI with expert strategies and 2-step lookahead
// @match https://2048.linux.do/*
// @grant none
// @run-at document-start
// ==/UserScript==
(function() {
'use strict';
// 防止密码管理器干扰
document.addEventListener('keydown', function(e) {
e.stopImmediatePropagation();
}, true);
// ===================================================================================
// CONFIGURATION
// ===================================================================================
const MOVE_INTERVAL = 150;
const TIMEOUT_FOR_INVALID_MOVE = 500;
let moveSpeed = MOVE_INTERVAL;
// 高级策略系统
const strategies = {
default: {
weights: [
[6, 5, 4, 3],
[5, 4, 3, 2],
[4, 3, 2, 1],
[3, 2, 1, 0]
],
emptyWeight: 2.7
},
aggressive: {
weights: [
[10, 8, 6, 4],
[8, 6, 4, 2],
[6, 4, 2, 1],
[4, 2, 1, 0]
],
emptyWeight: 2.0
},
expert: {
weights: [
[15, 14, 13, 12],
[8, 9, 10, 11],
[7, 6, 5, 4],
[0, 1, 2, 3]
],
emptyWeight: 4.0
}
};
let currentStrategy = 'expert'; // 默认使用专家策略
let isAiRunning = false;
let isThinking = false;
let gameLoopInterval = null;
// 游戏统计
let gamesPlayed = 0;
let highestScore = 0;
let highestTile = 0;
// ===================================================================================
// AI CORE: 增强版移动模拟和评估
// ===================================================================================
function simulateMove(board, direction) {
let moved = false;
const tempBoard = JSON.parse(JSON.stringify(board));
function slide(row) {
const arr = row.filter(val => val);
const missing = 4 - arr.length;
const zeros = Array(missing).fill(0);
return arr.concat(zeros);
}
function combine(row) {
for (let i = 0; i < 3; i++) {
if (row[i] !== 0 && row[i] === row[i + 1]) {
row[i] *= 2;
row[i + 1] = 0;
moved = true;
}
}
return row;
}
function operate(row) {
row = slide(row);
row = combine(row);
return slide(row);
}
// 优化方向处理
switch (direction) {
case 'left':
for (let r = 0; r < 4; r++) tempBoard[r] = operate(tempBoard[r]);
break;
case 'right':
for (let r = 0; r < 4; r++) tempBoard[r] = operate(tempBoard[r].reverse()).reverse();
break;
case 'up':
for (let c = 0; c < 4; c++) {
const column = [
tempBoard[0][c],
tempBoard[1][c],
tempBoard[2][c],
tempBoard[3][c]
];
const newColumn = operate(column);
for (let r = 0; r < 4; r++) {
tempBoard[r][c] = newColumn[r];
}
}
break;
case 'down':
for (let c = 0; c < 4; c++) {
const column = [
tempBoard[3][c],
tempBoard[2][c],
tempBoard[1][c],
tempBoard[0][c]
];
const newColumn = operate(column).reverse();
for (let r = 0; r < 4; r++) {
tempBoard[r][c] = newColumn[r];
}
}
break;
}
if (JSON.stringify(board) !== JSON.stringify(tempBoard)) {
moved = true;
Object.assign(board, tempBoard);
}
return moved;
}
// 增强版评估函数（加入2步前瞻）
function enhancedEvaluate(b) {
const strategy = strategies[currentStrategy];
let score = 0;
let emptyCount = 0;
let smoothness = 0;
let monotonicity = 0;
let maxTile = 0;
let mergePossible = 0;
// 基本评估
for (let r = 0; r < 4; r++) {
for (let c = 0; c < 4; c++) {
if (b[r][c] === 0) {
emptyCount++;
} else {
const tileValue = b[r][c];
if (tileValue > maxTile) maxTile = tileValue;
score += Math.log2(tileValue) * strategy.weights[r][c];
// 平滑度评估
if (c < 3 && b[r][c+1] !== 0) {
const diff = Math.abs(Math.log2(tileValue) - Math.log2(b[r][c+1]));
smoothness -= diff;
if (diff === 0) mergePossible++;
}
if (r < 3 && b[r+1][c] !== 0) {
const diff = Math.abs(Math.log2(tileValue) - Math.log2(b[r+1][c]));
smoothness -= diff;
if (diff === 0) mergePossible++;
}
}
}
}
// 单调性评估（专业技巧）
for (let r = 0; r < 4; r++) {
for (let c = 0; c < 3; c++) {
const current = b[r][c] || 0;
const next = b[r][c+1] || 0;
if (current > next) monotonicity++;
}
}
// 两步骤前瞻（模拟下一步可能的最佳移动）
let futureBonus = 0;
if (emptyCount > 0) {
const directions = ['left', 'right', 'up', 'down'];
for (const dir of directions) {
const simBoard = JSON.parse(JSON.stringify(b));
if (simulateMove(simBoard, dir)) {
// 评估移动后的空格数
let newEmpties = 0;
for (let r = 0; r < 4; r++) {
for (let c = 0; c < 4; c++) {
if (simBoard[r][c] === 0) newEmpties++;
}
}
futureBonus += newEmpties * 0.5;
}
}
}
// 最终评分公式（专业调整）
return score +
smoothness * 1.5 +
emptyCount * strategy.emptyWeight +
mergePossible * 3.0 +
monotonicity * 0.8 +
futureBonus;
}
function getNextMove(board) {
const directions = {up: 'ArrowUp', right: 'ArrowRight', down: 'ArrowDown', left: 'ArrowLeft'};
let bestScore = -Infinity;
let bestDirection = 'ArrowRight';
for (const dirKey in directions) {
const simBoard = JSON.parse(JSON.stringify(board));
if (simulateMove(simBoard, dirKey)) {
const moveScore = enhancedEvaluate(simBoard);
if (moveScore > bestScore) {
bestScore = moveScore;
bestDirection = directions[dirKey];
}
}
}
return bestDirection;
}
// =====================================================================
// EXECUTION ENGINE
// =====================================================================
async function attemptMove(direction) {
const stateBefore = JSON.stringify(window.canvasGame.board);
document.body.dispatchEvent(new KeyboardEvent('keydown', { key: direction, bubbles: true }));
return new Promise(resolve => {
const startTime = Date.now();
const checkInterval = setInterval(() => {
if (JSON.stringify(window.canvasGame.board) !== stateBefore) {
clearInterval(checkInterval);
resolve(true);
} else if (Date.now() - startTime > TIMEOUT_FOR_INVALID_MOVE) {
clearInterval(checkInterval);
resolve(false);
}
}, 50);
});
}
async function executeThinkCycle() {
if (isThinking || !isAiRunning) return;
// 游戏结束检测
if (window.canvasGame.gameOver || (window.canvasGame.victory && !window.canvasGame.keepPlaying)) {
console.log("🎉 游戏结束! 最终得分: " + window.canvasGame.score);
console.log("最大方块: " + window.canvasGame.maxTile);
// 更新统计
gamesPlayed++;
if (window.canvasGame.score > highestScore) {
highestScore = window.canvasGame.score;
}
if (window.canvasGame.maxTile > highestTile) {
highestTile = window.canvasGame.maxTile;
}
// 停止AI
isAiRunning = false;
clearInterval(gameLoopInterval);
// 更新UI
const autoPlayBtn = document.getElementById('auto-play-btn');
if (autoPlayBtn) {
autoPlayBtn.disabled = false;
autoPlayBtn.style.backgroundColor = '#27ae60';
autoPlayBtn.textContent = 'AI自动游戏';
autoPlayBtn.title = `游戏次数: ${gamesPlayed} | 最高分: ${highestScore} | 最大方块: ${highestTile}`;
}
return;
}
isThinking = true;
try {
const board = window.canvasGame.board;
const bestMove = getNextMove(board);
if (!await attemptMove(bestMove)) {
console.warn(`最佳移动 ${bestMove} 无效，尝试备选方案...`);
const fallbackMoves = ['ArrowRight', 'ArrowDown', 'ArrowLeft', 'ArrowUp'].filter(m => m !== bestMove);
for(const move of fallbackMoves) {
if (await attemptMove(move)) break;
}
}
} catch (e) {
console.error("AI执行错误:", e);
} finally {
isThinking = false;
}
}
// =====================================================================
// UI 控制面板
// =====================================================================
function addControlPanel() {
if (document.getElementById('ai-control-panel')) return;
const gameControls = document.querySelector('.game-controls');
if (!gameControls) {
setTimeout(addControlPanel, 500);
return;
};
// 创建面板
const panel = document.createElement('div');
panel.id = 'ai-control-panel';
panel.style.display = 'flex';
panel.style.gap = '10px';
panel.style.marginTop = '15px';
panel.style.flexWrap = 'wrap';
// 自动游戏按钮
const autoPlayBtn = document.createElement('button');
autoPlayBtn.id = 'auto-play-btn';
autoPlayBtn.className = 'new-game-btn';
autoPlayBtn.style.backgroundColor = '#27ae60';
autoPlayBtn.textContent = 'AI自动游戏';
autoPlayBtn.title = `游戏次数: 0 | 最高分: 0 | 最大方块: 0`;
autoPlayBtn.onclick = function() {
if (!isAiRunning) {
if (window.canvasGame.gameOver || window.canvasGame.victory) {
alert("游戏已结束! 请先开始新游戏");
return;
}
isAiRunning = true;
this.disabled = true;
this.style.backgroundColor = '#7f8c8d';
this.textContent = 'AI运行中...';
gameLoopInterval = setInterval(executeThinkCycle, moveSpeed);
}
};
// 速度控制
const speedContainer = document.createElement('div');
speedContainer.style.display = 'flex';
speedContainer.style.alignItems = 'center';
speedContainer.style.gap = '5px';
const speedLabel = document.createElement('span');
speedLabel.textContent = '速度:';
const speedSlider = document.createElement('input');
speedSlider.type = 'range';
speedSlider.min = '50';
speedSlider.max = '500';
speedSlider.value = moveSpeed;
speedSlider.style.width = '100px';
speedSlider.oninput = function() {
moveSpeed = parseInt(this.value);
if (isAiRunning) {
clearInterval(gameLoopInterval);
gameLoopInterval = setInterval(executeThinkCycle, moveSpeed);
}
};
speedContainer.appendChild(speedLabel);
speedContainer.appendChild(speedSlider);
// 策略选择
const strategyContainer = document.createElement('div');
strategyContainer.style.display = 'flex';
strategyContainer.style.alignItems = 'center';
strategyContainer.style.gap = '5px';
const strategyLabel = document.createElement('span');
strategyLabel.textContent = '策略:';
const strategySelect = document.createElement('select');
for (const strategy in strategies) {
const option = document.createElement('option');
option.value = strategy;
option.textContent = strategy.charAt(0).toUpperCase() + strategy.slice(1);
strategySelect.appendChild(option);
}
strategySelect.value = currentStrategy;
strategySelect.onchange = function() {
currentStrategy = this.value;
};
strategyContainer.appendChild(strategyLabel);
strategyContainer.appendChild(strategySelect);
// 统计显示
const statsDisplay = document.createElement('div');
statsDisplay.id = 'ai-stats';
statsDisplay.style.marginLeft = '15px';
statsDisplay.style.color = '#776e65';
statsDisplay.textContent = '游戏次数: 0 | 最高分: 0 | 最大方块: 0';
// 组装面板
panel.appendChild(autoPlayBtn);
panel.appendChild(speedContainer);
panel.appendChild(strategyContainer);
gameControls.appendChild(panel);
gameControls.appendChild(statsDisplay);
}
// 初始化
console.log('2048 Ultimate AI initialized');
setTimeout(addControlPanel, 1000);
})();
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