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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>插入排序可视化 | Insertion Sort Pro</title>
<link href="https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
<style>
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&family=Inter:wght@300;400;500;600;700&display=swap');
:root {
--primary: #3b82f6;
--secondary: #8b5cf6;
--bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}
body {
font-family: 'Inter', sans-serif;
background: var(--bg-gradient);
color: #334155;
min-height: 100vh;
}
/* 玻璃拟态效果 */
.glass-card {
background: rgba(255, 255, 255, 0.9);
backdrop-filter: blur(12px);
border: 1px solid rgba(255, 255, 255, 0.8);
box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.06);
transition: all 0.3s ease;
}
/* 舞台容器 */
.visualization-container {
position: relative;
height: 340px; /* 增加高度以容纳“提起”动画 */
width: 100%;
overflow: visible;
}
.array-container {
position: relative;
height: 100%;
width: 100%;
display: flex;
align-items: flex-end;
}
/* 数组元素通用样式 */
.array-item {
position: absolute;
transition: height 0.3s ease, background-color 0.3s ease, left 0.4s cubic-bezier(0.25, 1, 0.5, 1), transform 0.4s ease, box-shadow 0.3s;
border-radius: 6px 6px 2px 2px;
background-color: #60a5fa; /* Blue 400 */
display: flex;
align-items: center;
justify-content: center;
box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
z-index: 10;
}
/* 柱状模式 */
.mode-bar .array-item {
bottom: 0;
align-items: flex-end;
padding-bottom: 4px;
transform-origin: bottom center;
}
/* 色块模式 */
.mode-block .array-item {
bottom: 40%; /* 稍微靠下，留出上方提起空间 */
transform: translateY(50%);
border-radius: 8px;
font-size: 14px;
font-weight: bold;
color: white;
}
/* --- 状态颜色与动画 --- */
/* 默认状态 */
.color-default { background-color: #60a5fa; }
/* 正在比较 */
.color-comparing {
background-color: #f59e0b !important; /* Amber 500 */
box-shadow: 0 0 15px rgba(245, 158, 11, 0.4);
z-index: 20;
}
/* 已排序区域 */
.color-sorted { background-color: #10b981 !important; opacity: 0.9; } /* Emerald 500 */
/* 被选中的 Key (提起状态) */
.color-picked {
background-color: #8b5cf6 !important; /* Purple 500 */
z-index: 50 !important;
box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
border: 2px solid white;
}
/* 柱状图模式下的提起动画 */
.mode-bar .color-picked {
transform: translateY(-110%) scale(1.05) !important; /* 向上浮动 */
}
/* 色块模式下的提起动画 */
.mode-block .color-picked {
transform: translateY(-80%) scale(1.1) !important; /* 向上浮动 */
}
/* 指针指示器 */
.pointer-container {
position: absolute;
bottom: -35px;
width: 100%;
height: 30px;
pointer-events: none;
}
.mode-block ~ .pointer-container { bottom: 10%; }
.pointer {
position: absolute;
transition: left 0.4s cubic-bezier(0.25, 1, 0.5, 1);
display: flex;
flex-direction: column;
align-items: center;
z-index: 20;
bottom: 0;
}
.pointer-tag {
font-size: 10px;
font-weight: 800;
padding: 2px 6px;
border-radius: 4px;
color: white;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
margin-bottom: 2px;
}
.pointer-arrow {
width: 0; height: 0;
border-left: 5px solid transparent;
border-right: 5px solid transparent;
border-bottom: 6px solid;
}
.pointer-i .pointer-tag { background-color: #8b5cf6; }
.pointer-i .pointer-arrow { border-bottom-color: #8b5cf6; }
.pointer-j .pointer-tag { background-color: #f59e0b; }
.pointer-j .pointer-arrow { border-bottom-color: #f59e0b; }
/* 代码高亮区 */
.code-block {
font-family: 'JetBrains Mono', monospace;
font-size: 0.8rem;
background: #1e293b;
color: #94a3b8;
border-radius: 0.5rem;
padding: 1rem;
line-height: 1.6;
}
.code-line {
padding: 0 4px;
border-radius: 2px;
transition: all 0.2s;
display: block;
}
.code-active {
background: rgba(59, 130, 246, 0.3);
color: #ffffff;
border-left: 2px solid #3b82f6;
margin-left: -2px;
}
/* 终端日志 */
.log-container {
font-family: 'JetBrains Mono', monospace;
background: #f8fafc;
border: 1px solid #e2e8f0;
border-left: 4px solid #3b82f6;
}
.log-entry { animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: 0; } }
/* 布局逻辑 */
.layout-default .main-grid { display: flex; flex-direction: column; gap: 1.5rem; }
.layout-sidebar .main-grid { display: grid; grid-template-columns: 1fr 350px; gap: 1.5rem; }
@media (max-width: 1024px) { .layout-sidebar .main-grid { grid-template-columns: 1fr; } }
/* 状态指示灯 */
.status-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.dot-running { background: #10b981; animation: pulse 1.5s infinite; }
.dot-paused { background: #f59e0b; }
.dot-idle { background: #94a3b8; }
@keyframes pulse { 0% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.2); } 100% { opacity: 1; transform: scale(1); } }
</style>
</head>
<body class="p-4 md:p-8">
<div class="max-w-7xl mx-auto">
<!-- Header -->
<header class="flex flex-col md:flex-row justify-between items-center mb-8 gap-4">
<div>
<div class="flex items-center gap-3 mb-1">
<div class="p-2 bg-gradient-to-br from-blue-600 to-purple-600 rounded-xl text-white shadow-lg shadow-purple-200">
<i class="fas fa-layer-group fa-lg"></i>
</div>
<h1 class="text-3xl font-extrabold text-slate-800 tracking-tight">插入排序 </h1>
</div>
<p class="text-slate-500 font-medium">Insertion Sort Visualization Hub</p>
</div>
<div class="flex gap-3">
<button id="layoutToggle" class="glass-card px-5 py-2.5 rounded-xl text-slate-700 font-semibold hover:bg-white transition flex items-center gap-2">
<i class="fas fa-columns text-blue-500"></i> 视图切换
</button>
</div>
</header>
<div id="mainContent" class="layout-default">
<!-- Control Panel -->
<section class="glass-card rounded-2xl p-6 mb-6">
<div class="grid grid-cols-1 lg:grid-cols-5 gap-6 items-end">
<!-- Visualization Mode -->
<div>
<label class="text-xs font-bold text-slate-500 uppercase block mb-2">视图模式</label>
<select id="viewMode" class="w-full bg-slate-50 border border-slate-200 rounded-xl px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500 transition shadow-sm font-medium text-slate-700">
<option value="bar">📊 高度柱状图</option>
<option value="block">🧊 等高色块图</option>
</select>
</div>
<!-- Size Control -->
<div>
<div class="flex justify-between mb-2">
<label class="text-xs font-bold text-slate-500 uppercase">数据规模</label>
<span id="sizeValue" class="text-blue-600 font-bold font-mono text-sm">12</span>
</div>
<input type="range" id="sizeSlider" min="5" max="20" value="12" class="w-full accent-blue-600 cursor-pointer h-2 bg-slate-200 rounded-lg appearance-none">
</div>
<!-- Speed Control -->
<div>
<div class="flex justify-between mb-2">
<label class="text-xs font-bold text-slate-500 uppercase">动画速度</label>
<span id="speedValue" class="text-blue-600 font-bold font-mono text-sm">5</span>
</div>
<input type="range" id="speedSlider" min="1" max="10" value="5" class="w-full accent-blue-600 cursor-pointer h-2 bg-slate-200 rounded-lg appearance-none">
</div>
<!-- Custom Input -->
<div>
<label class="text-xs font-bold text-slate-500 uppercase block mb-2">自定义数据</label>
<input type="text" id="customArray" placeholder="例如: 45, 12, 8" class="w-full bg-slate-50 border border-slate-200 rounded-xl px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500 transition shadow-sm font-mono">
</div>
<!-- Generate Button -->
<button id="generateBtn" class="bg-blue-50 text-blue-600 h-10 px-4 rounded-xl font-bold hover:bg-blue-100 transition border border-blue-100 flex items-center justify-center gap-2">
<i class="fas fa-sync-alt"></i> 生成数组
</button>
</div>
</section>
<div class="main-grid">
<!-- Left/Top Section: Visualization -->
<div class="space-y-6">
<section class="glass-card rounded-3xl p-6 relative flex flex-col">
<!-- Status Bar -->
<div class="flex justify-between items-center mb-8 pb-4 border-b border-slate-100 flex-wrap gap-4">
<div class="flex items-center gap-4">
<span class="flex items-center text-sm font-bold text-slate-600 bg-white border border-slate-200 px-4 py-1.5 rounded-full shadow-sm">
<span id="statusIndicator" class="status-dot dot-idle"></span>
<span id="statusText">准备就绪</span>
</span>
</div>
<!-- Metrics -->
<div class="flex items-center gap-3">
<div class="text-sm bg-slate-50 px-3 py-1.5 rounded-lg border border-slate-100 flex items-center gap-2">
<i class="fas fa-stopwatch text-blue-400"></i>
<span class="text-slate-500 font-semibold">耗时:</span>
<span id="timerDisplay" class="font-mono font-bold text-slate-700">0.0s</span>
</div>
<div class="text-sm bg-slate-50 px-3 py-1.5 rounded-lg border border-slate-100 flex items-center gap-2">
<i class="fas fa-exchange-alt text-amber-500"></i>
<span class="text-slate-500 font-semibold">比较:</span>
<span id="compCount" class="font-mono font-bold text-slate-700">0</span>
</div>
</div>
</div>
<!-- Visualization Container -->
<div class="visualization-container mb-8">
<div id="sortArray" class="array-container mode-bar">
<!-- Bars/Blocks will be injected here -->
</div>
<!-- Pointers -->
<div id="pointerContainer" class="pointer-container">
<div id="pointerI" class="pointer pointer-i" style="display:none;">
<div class="pointer-arrow"></div>
<div class="pointer-tag">i (待插)</div>
</div>
<div id="pointerJ" class="pointer pointer-j" style="display:none;">
<div class="pointer-arrow"></div>
<div class="pointer-tag">j (比较)</div>
</div>
</div>
</div>
<!-- Controls -->
<div class="flex flex-wrap justify-center gap-3">
<button id="startBtn" class="px-6 py-2.5 bg-blue-600 text-white rounded-xl font-bold hover:bg-blue-700 transition shadow-lg shadow-blue-200 active:scale-95 flex items-center gap-2">
<i class="fas fa-play"></i> 开始排序
</button>
<button id="pauseBtn" disabled class="px-6 py-2.5 bg-white border border-slate-200 text-slate-700 rounded-xl font-bold hover:bg-slate-50 transition disabled:opacity-50 disabled:cursor-not-allowed flex items-center gap-2">
<i class="fas fa-pause"></i> 暂停
</button>
<!-- 修改：单步按钮初始不再禁用 -->
<button id="stepBtn" class="px-6 py-2.5 bg-white border border-slate-200 text-slate-700 rounded-xl font-bold hover:bg-slate-50 transition disabled:opacity-50 active:scale-95 flex items-center gap-2">
<i class="fas fa-step-forward"></i> 单步
</button>
<button id="resetBtn" class="px-6 py-2.5 bg-rose-50 border border-rose-100 text-rose-600 rounded-xl font-bold hover:bg-rose-100 transition active:scale-95 flex items-center gap-2">
<i class="fas fa-undo"></i> 重置
</button>
</div>
</section>
<!-- Terminal Log -->
<section class="log-container rounded-2xl p-4">
<div class="flex items-center justify-between mb-3 border-b border-slate-200 pb-2">
<div class="flex items-center gap-2 text-slate-700 text-xs font-bold uppercase tracking-widest">
<i class="fas fa-terminal text-blue-500"></i> 执行日志
</div>
</div>
<div id="logContent" class="h-32 overflow-y-auto space-y-1.5 text-sm scrollbar-hide px-1">
<div class="text-slate-500 flex items-start gap-2">
<span class="text-blue-400 font-bold">></span>
<span>等待系统指令...</span>
</div>
</div>
</section>
</div>
<!-- Right/Bottom Section: Algorithm Info & Code -->
<aside id="infoSection" class="glass-card rounded-2xl p-6 border-t-4 border-purple-500 h-full flex flex-col gap-6">
<!-- Code Trace -->
<div>
<h3 class="text-sm font-bold text-slate-800 mb-3 flex items-center gap-2">
<i class="fas fa-code text-purple-500"></i> 代码跟踪
</h3>
<div class="code-block shadow-inner" id="codeBox">
<span class="code-line" id="line-0">procedure insertionSort(A):</span>
<span class="code-line" id="line-1"> for i from 1 to n-1:</span>
<span class="code-line" id="line-2"> key = A[i]</span>
<span class="code-line" id="line-3"> j = i - 1</span>
<span class="code-line" id="line-4"> while j >= 0 and A[j] > key:</span>
<span class="code-line" id="line-5"> A[j + 1] = A[j]</span>
<span class="code-line" id="line-6"> j = j - 1</span>
<span class="code-line" id="line-7"> A[j + 1] = key</span>
</div>
</div>
<!-- Legend -->
<div class="bg-slate-50 p-4 rounded-xl border border-slate-100">
<h4 class="text-xs font-bold text-slate-500 uppercase mb-3">图例说明</h4>
<div class="grid grid-cols-2 gap-2 text-xs font-medium text-slate-600">
<div class="flex items-center gap-2"><div class="w-3 h-3 rounded bg-purple-500 border border-white shadow"></div>提取 (Key)</div>
<div class="flex items-center gap-2"><div class="w-3 h-3 rounded bg-amber-500"></div>正在比较</div>
<div class="flex items-center gap-2"><div class="w-3 h-3 rounded bg-emerald-500"></div>已排序区</div>
<div class="flex items-center gap-2"><div class="w-3 h-3 rounded bg-blue-400"></div>未排序区</div>
</div>
</div>
<!-- Algorithm Details -->
<div class="text-slate-600 text-sm">
<h4 class="font-bold text-slate-800 mb-2">💡 核心思想</h4>
<p class="leading-relaxed mb-4">像打扑克牌整理手牌一样。将未排序的元素一个个取出，插入到已排序序列的正确位置。</p>
<div class="flex flex-wrap gap-2 mb-2">
<span class="px-2 py-1 bg-blue-100 text-blue-700 rounded text-xs font-bold">时间: O(n²)</span>
<span class="px-2 py-1 bg-green-100 text-green-700 rounded text-xs font-bold">空间: O(1)</span>
<span class="px-2 py-1 bg-purple-100 text-purple-700 rounded text-xs font-bold">稳定</span>
</div>
</div>
</aside>
</div>
</div>
<!-- Footer -->
<footer class="mt-8 text-center text-slate-400 text-xs pb-4">
<p>Insertion Sort Pro Visualization</p>
</footer>
</div>
<script>
// --- 全局变量与状态 ---
let array = []; // 数值数组
let doms = []; // DOM 元素数组 (与 index 对应)
let originalArray = [];
let state = {
isSorting: false,
isPaused: false,
stepMode: false,
stepResolver: null,
stopFlag: false,
comparisons: 0,
startTime: 0,
timerInterval: null
};
let speed = 500;
let vizMode = 'bar'; // 'bar' or 'block'
// --- DOM 引用 ---
const els = {
sizeSlider: document.getElementById('sizeSlider'),
sizeValue: document.getElementById('sizeValue'),
speedSlider: document.getElementById('speedSlider'),
speedValue: document.getElementById('speedValue'),
customArray: document.getElementById('customArray'),
viewMode: document.getElementById('viewMode'),
generateBtn: document.getElementById('generateBtn'),
startBtn: document.getElementById('startBtn'),
pauseBtn: document.getElementById('pauseBtn'),
stepBtn: document.getElementById('stepBtn'),
resetBtn: document.getElementById('resetBtn'),
sortArray: document.getElementById('sortArray'),
logContent: document.getElementById('logContent'),
statusIndicator: document.getElementById('statusIndicator'),
statusText: document.getElementById('statusText'),
timerDisplay: document.getElementById('timerDisplay'),
compCount: document.getElementById('compCount'),
pointerI: document.getElementById('pointerI'),
pointerJ: document.getElementById('pointerJ'),
layoutToggle: document.getElementById('layoutToggle'),
mainContent: document.getElementById('mainContent')
};
// --- 初始化 ---
document.addEventListener('DOMContentLoaded', () => {
updateSizeValue();
updateSpeedValue();
generateNewArray();
els.layoutToggle.addEventListener('click', toggleLayout);
els.sizeSlider.addEventListener('input', () => { updateSizeValue(); generateNewArray(); });
els.speedSlider.addEventListener('input', updateSpeedValue);
els.viewMode.addEventListener('change', (e) => {
vizMode = e.target.value;
els.sortArray.className = `array-container mode-${vizMode}`;
renderArray(); // 重新渲染以适应新模式
if(state.isSorting) {
// 如果正在排序中切换模式，需要重置，因为 left/bottom 计算方式变了
alert("请在重置状态下切换视图模式以获得最佳体验");
state.stopFlag = true;
}
});
els.generateBtn.addEventListener('click', parseCustomInput);
els.startBtn.addEventListener('click', startSort);
els.pauseBtn.addEventListener('click', togglePause);
els.stepBtn.addEventListener('click', stepSort);
els.resetBtn.addEventListener('click', resetAll);
window.addEventListener('resize', () => { if (!state.isSorting && array.length > 0) renderArray(); });
});
// --- 核心功能函数 ---
function toggleLayout() {
const isDefault = els.mainContent.classList.contains('layout-default');
if (isDefault) {
els.mainContent.classList.remove('layout-default');
els.mainContent.classList.add('layout-sidebar');
els.layoutToggle.innerHTML = '<i class="fas fa-arrow-up text-blue-500"></i> 默认视图';
} else {
els.mainContent.classList.remove('layout-sidebar');
els.mainContent.classList.add('layout-default');
els.layoutToggle.innerHTML = '<i class="fas fa-columns text-blue-500"></i> 侧边视图';
}
setTimeout(() => { if(!state.isSorting) renderArray(); }, 300);
}
function updateSizeValue() { els.sizeValue.textContent = els.sizeSlider.value; }
function updateSpeedValue() {
els.speedValue.textContent = els.speedSlider.value;
// 速度 1-10 映射到 1500ms - 50ms
speed = 1500 - (els.speedSlider.value - 1) * 150;
if(speed < 50) speed = 50;
}
function parseCustomInput() {
const custom = els.customArray.value.trim();
if (custom) {
try {
const parsed = custom.split(/[,， ]+/).map(Number).filter(n => !isNaN(n));
if (parsed.length < 2) throw new Error();
if (parsed.length > 20) { alert('数量过多，建议20以内'); return; }
array = parsed;
originalArray = [...array];
resetState();
renderArray();
} catch {
alert('请输入有效的数字数组，例如: 45, 12, 8');
}
} else {
generateNewArray();
}
}
function generateNewArray() {
const size = parseInt(els.sizeSlider.value);
array = [];
for (let i = 0; i < size; i++) {
array.push(Math.floor(Math.random() * 85) + 10);
}
originalArray = [...array];
resetState();
renderArray();
}
function resetAll() {
state.stopFlag = true;
if (state.stepResolver) state.stepResolver();
setTimeout(() => {
array = [...originalArray];
resetState();
renderArray();
}, 100);
}
function resetState() {
state = { ...state, isSorting: false, isPaused: false, stepMode: false, stopFlag: false, comparisons: 0 };
clearInterval(state.timerInterval);
updateStatus('未开始', 'idle');
els.timerDisplay.textContent = '0.0s';
els.compCount.textContent = '0';
hidePointers();
els.logContent.innerHTML = '<div class="text-slate-500 flex items-start gap-2"><span class="text-blue-400 font-bold">></span><span>系统重置就绪</span></div>';
highlightCode(-1);
els.startBtn.disabled = false;
els.startBtn.innerHTML = '<i class="fas fa-play"></i> 开始排序';
els.pauseBtn.innerHTML = '<i class="fas fa-pause"></i> 暂停';
els.pauseBtn.disabled = true;
// 关键修改：重置状态下启用单步按钮
els.stepBtn.disabled = false;
}
function updateStatus(text, type) {
els.statusText.textContent = text;
els.statusIndicator.className = `status-dot dot-${type}`;
}
// --- 渲染逻辑 (关键) ---
// 计算每个 slot 的 left 位置，用于绝对定位
function getSlotPosition(index, total, containerWidth) {
const totalGap = (total + 1) * 6; // 6px gap
const availableWidth = containerWidth - totalGap;
const itemWidth = Math.max(16, Math.floor(availableWidth / total));
// 居中计算
const realTotalWidth = total * itemWidth + (total - 1) * 6;
const startX = (containerWidth - realTotalWidth) / 2;
return {
left: startX + index * (itemWidth + 6),
width: itemWidth
};
}
function renderArray() {
els.sortArray.innerHTML = '';
doms = [];
const maxValue = Math.max(...array, 100);
const containerWidth = els.sortArray.clientWidth;
array.forEach((value, index) => {
const item = document.createElement('div');
item.className = 'array-item color-default';
const pos = getSlotPosition(index, array.length, containerWidth);
item.style.left = `${pos.left}px`;
item.style.width = `${pos.width}px`;
// 内容与高度
if (vizMode === 'bar') {
const heightPercent = (value / maxValue) * 70; // 留出顶部空间给 lift
item.style.height = `${heightPercent}%`;
if (pos.width > 24) {
item.innerHTML = `<span class="mb-1 text-xs text-white font-bold opacity-90">${value}</span>`;
}
} else {
item.style.height = `${pos.width}px`; // 正方形
item.innerHTML = `<span>${value}</span>`;
}
// 标记初始状态，index 0 默认视为有序
// 但为了演示效果，刚开始全是蓝色，等算法跑第一步
els.sortArray.appendChild(item);
doms.push(item);
});
}
function updatePointer(pointer, index) {
if (index < 0 || index >= doms.length) {
pointer.style.display = 'none';
return;
}
pointer.style.display = 'flex';
// 获取当前 index 对应的逻辑位置 (即使元素移动了，我们计算的是 slot 的位置)
const pos = getSlotPosition(index, array.length, els.sortArray.clientWidth);
const pWidth = 30;
pointer.style.left = `${pos.left + pos.width/2 - pWidth/2}px`;
}
function hidePointers() {
els.pointerI.style.display = 'none';
els.pointerJ.style.display = 'none';
}
function highlightCode(lineIndex) {
document.querySelectorAll('.code-line').forEach(el => el.classList.remove('code-active'));
if (lineIndex >= 0) {
const line = document.getElementById(`line-${lineIndex}`);
if (line) line.classList.add('code-active');
}
}
// --- 排序算法逻辑 ---
async function wait(factor = 1) {
if (state.stopFlag) throw new Error('ABORT');
if (state.stepMode) {
return new Promise(resolve => { state.stepResolver = resolve; });
}
return new Promise(resolve => setTimeout(resolve, speed * factor));
}
async function startSort() {
if (state.isSorting) return;
state.isSorting = true;
state.stopFlag = false;
updateStatus('排序中', 'running');
els.startBtn.disabled = true;
els.pauseBtn.disabled = false;
els.stepBtn.disabled = false;
state.startTime = Date.now();
state.timerInterval = setInterval(() => {
if(!state.isPaused && !state.stopFlag) {
const diff = (Date.now() - state.startTime) / 1000;
els.timerDisplay.textContent = diff.toFixed(1) + 's';
} else {
state.startTime = Date.now() - (parseFloat(els.timerDisplay.textContent) * 1000);
}
}, 100);
try {
log('🚀 插入排序开始');
highlightCode(0);
await insertionSort();
completeSort();
} catch (e) {
if (e.message !== 'ABORT') console.error(e);
updateStatus('已停止', 'paused');
}
}
async function insertionSort() {
const n = array.length;
doms[0].classList.add('color-sorted'); // 第一个默认有序
for (let i = 1; i < n; i++) {
if (state.stopFlag) throw new Error('ABORT');
highlightCode(1);
let keyVal = array[i];
let keyEl = doms[i];
let j = i - 1;
updatePointer(els.pointerI, i);
// 1. 提取 (Lift)
log(`📤 提取元素 [${i}]: ${keyVal}`);
highlightCode(2);
keyEl.classList.add('color-picked');
await wait(1.2);
highlightCode(3);
// 2. 扫描与移位
while (j >= 0) {
if (state.stopFlag) throw new Error('ABORT');
updatePointer(els.pointerJ, j);
highlightCode(4);
// 比较视觉效果
doms[j].classList.add('color-comparing');
log(`🔍 比较 ${array[j]} vs ${keyVal}`);
state.comparisons++;
els.compCount.textContent = state.comparisons;
await wait(1);
if (array[j] > keyVal) {
log(`➡️ ${array[j]} > ${keyVal}，后移`);
highlightCode(5);
// 逻辑移位: array[j] 移到 j+1
// 视觉移位: doms[j] 的 left 设为 j+1 的位置
const nextSlot = getSlotPosition(j + 1, n, els.sortArray.clientWidth);
doms[j].style.left = `${nextSlot.left}px`;
// 更新数据结构引用
array[j + 1] = array[j];
doms[j + 1] = doms[j]; // DOM 引用也移动
doms[j].classList.remove('color-comparing');
// keyEl (视觉上) 跟着指针左移，为了好看，可选
// const currentJSlot = getSlotPosition(j, n, els.sortArray.clientWidth);
// keyEl.style.left = `${currentJSlot.left}px`;
j = j - 1;
highlightCode(6);
await wait(0.8);
} else {
doms[j].classList.remove('color-comparing');
log(`⏹️ ${array[j]} <= ${keyVal}，停止后移`);
break;
}
}
// 3. 插入 (Drop)
highlightCode(7);
log(`⬇️ 将 ${keyVal} 插入位置 ${j + 1}`);
// 计算最终位置
const finalSlot = getSlotPosition(j + 1, n, els.sortArray.clientWidth);
keyEl.style.left = `${finalSlot.left}px`; // 移动到上方
// 更新数据
array[j + 1] = keyVal;
doms[j + 1] = keyEl;
await wait(0.8);
// 下落动画
keyEl.classList.remove('color-picked');
keyEl.classList.add('color-sorted');
// 把 0到i 的都标记为 sorted
for(let k=0; k<=i; k++) doms[k].classList.add('color-sorted');
await wait(0.5);
}
}
function togglePause() {
if (!state.isSorting) return;
state.isPaused = !state.isPaused;
state.stepMode = state.isPaused;
if (state.isPaused) {
els.pauseBtn.innerHTML = '<i class="fas fa-play"></i> 继续';
updateStatus('已暂停', 'paused');
log('⏸️ 流程暂停');
} else {
els.pauseBtn.innerHTML = '<i class="fas fa-pause"></i> 暂停';
updateStatus('排序中', 'running');
log('▶️ 流程继续');
if (state.stepResolver) {
state.stepResolver();
state.stepResolver = null;
}
}
}
function stepSort() {
if (!state.isSorting) {
// 如果还未开始，点击单步则启动并进入暂停模式
startSort();
state.stepMode = true;
state.isPaused = true;
els.pauseBtn.innerHTML = '<i class="fas fa-play"></i> 继续';
updateStatus('单步模式', 'paused');
} else if (state.stepMode && state.stepResolver) {
// 如果已经在单步等待中，执行一步
state.stepResolver();
state.stepResolver = null;
} else if (!state.isPaused) {
// 如果正在自动播放，点击单步则暂停
togglePause();
}
}
function completeSort() {
state.isSorting = false;
clearInterval(state.timerInterval);
updateStatus('已完成', 'running');
hidePointers();
highlightCode(-1);
// 庆祝动画
doms.forEach((item, idx) => {
setTimeout(() => {
item.style.transform = vizMode === 'bar' ? 'scale(1.1)' : 'translateY(50%) scale(1.1)';
item.style.zIndex = '100';
setTimeout(() => {
item.style.transform = vizMode === 'bar' ? 'scale(1)' : 'translateY(50%) scale(1)';
item.style.zIndex = '';
}, 200);
}, idx * 50);
});
els.startBtn.disabled = false;
els.startBtn.innerHTML = '<i class="fas fa-redo"></i> 重新开始';
els.pauseBtn.disabled = true;
els.stepBtn.disabled = true; // 完成后禁用单步
log('🏆 排序完成！');
}
function log(msg) {
const div = document.createElement('div');
div.className = 'log-entry text-slate-600 flex items-start gap-2 border-l-2 border-purple-100 pl-2 py-1';
const time = new Date().toLocaleTimeString('zh-CN', { hour12: false });
div.innerHTML = `<span class="text-xs text-blue-400 font-mono mt-0.5">[${time}]</span> <span class="flex-1">${msg}</span>`;
els.logContent.appendChild(div);
els.logContent.scrollTop = els.logContent.scrollHeight;
}
</script>
</body>
</html>