feat(voice-recognition): add speech recognition and emotion-based video switching

Implement voice recognition functionality that displays transcript in a styled container. Add emotion analysis to switch videos based on detected positive/negative keywords in speech. Includes UI updates for transcript display and microphone interaction.

index.html

@@ -38,6 +38,11 @@
             </div>
         </header>
 
+        <!-- 语音识别结果显示区域 -->
+        <div class="transcript-container">
+            <p id="transcript"></p>
+        </div>
+
         <!-- 底部麦克风和链接 -->
         <footer class="bottom-bar">
             <button class="mic-button" id="mic-button" aria-label="Start Listening">

script.js

@@ -69,33 +69,123 @@ document.addEventListener('DOMContentLoaded', function() {
     activeVideo.addEventListener('ended', switchVideo, { once: true });
 
 
-    // --- 麦克风按钮交互和好感度条模拟 ---
+    // --- 语音识别核心 ---
+    const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
+    let recognition;
+
+    // 检查浏览器是否支持语音识别
+    if (SpeechRecognition) {
+        recognition = new SpeechRecognition();
+        recognition.continuous = true; // 持续识别
+        recognition.lang = 'zh-CN'; // 设置语言为中文
+        recognition.interimResults = true; // 获取临时结果
+
+        recognition.onresult = (event) => {
+            const transcriptContainer = document.getElementById('transcript');
+            let final_transcript = '';
+            let interim_transcript = '';
+
+            for (let i = event.resultIndex; i < event.results.length; ++i) {
+                if (event.results[i].isFinal) {
+                    final_transcript += event.results[i][0].transcript;
+                } else {
+                    interim_transcript += event.results[i][0].transcript;
+                }
+            }
+            
+            // 显示最终识别结果
+            transcriptContainer.textContent = final_transcript || interim_transcript;
+            
+            // 基于关键词的情感分析和视频切换
+            if (final_transcript) {
+                analyzeAndReact(final_transcript);
+            }
+        };
+
+        recognition.onerror = (event) => {
+            console.error('语音识别错误:', event.error);
+        };
+
+    } else {
+        console.log('您的浏览器不支持语音识别功能。');
+        // 可以在界面上给用户提示
+    }
+
+    // --- 麦克风按钮交互 ---
     let isListening = false;
-    let currentFavorability = 65; // 与 CSS 中的初始宽度保持一致
 
     micButton.addEventListener('click', function() {
-        isListening = !isListening;
+        if (!SpeechRecognition) return; // 如果不支持，则不执行任何操作
-        
+
-        // 切换 "监听中" 的样式 (动画)
+        isListening = !isListening;
-        micButton.classList.toggle('is-listening', isListening);
+        micButton.classList.toggle('is-listening', isListening);
+        const transcriptContainer = document.querySelector('.transcript-container');
+        const transcriptText = document.getElementById('transcript');
 
-        // 模拟交互：每次点击麦克风，好感度增加
         if (isListening) {
-            // 增加好感度，但最高不超过 100
+            transcriptText.textContent = '聆听中...'; // 立刻显示提示
-            currentFavorability += 5;
+            transcriptContainer.classList.add('visible');
-            if (currentFavorability > 100) {
+            recognition.start();
-                currentFavorability = 100;
-            }
         } else {
-            // 如果停止监听，可以稍微降低一点好感度（可选）
+            recognition.stop();
-            currentFavorability -= 2;
+            transcriptContainer.classList.remove('visible');
-            if (currentFavorability < 0) {
+            transcriptText.textContent = ''; // 清空文本
-                currentFavorability = 0;
-            }
         }
-        
-        // 更新好感度进度条的宽度
-        favorabilityBar.style.width = currentFavorability + '%';
     });
 
+
+    // --- 情感分析与反应 ---
+    const positiveWords = ['开心', '高兴', '喜欢', '太棒了', '你好', '漂亮'];
+    const negativeWords = ['难过', '生气', '讨厌', '伤心'];
+
+    const positiveVideos = [
+        '视频资源/jimeng-2025-07-16-1043-笑着优雅的左右摇晃，过一会儿手扶着下巴，保持微笑.mp4',
+        '视频资源/jimeng-2025-07-16-4437-比耶，然后微笑着优雅的左右摇晃.mp4',
+        '视频资源/生成加油视频.mp4',
+        '视频资源/生成跳舞视频.mp4'
+    ];
+    const negativeVideo = '视频资源/负面/jimeng-2025-07-16-9418-双手叉腰，嘴巴一直在嘟囔，表情微微生气.mp4';
+
+    function analyzeAndReact(text) {
+        let reaction = 'neutral'; // 默认为中性
+
+        if (positiveWords.some(word => text.includes(word))) {
+            reaction = 'positive';
+        } else if (negativeWords.some(word => text.includes(word))) {
+            reaction = 'negative';
+        }
+
+        if (reaction !== 'neutral') {
+            switchVideoByEmotion(reaction);
+        }
+    }
+
+    function switchVideoByEmotion(emotion) {
+        let nextVideoSrc;
+        if (emotion === 'positive') {
+            const randomIndex = Math.floor(Math.random() * positiveVideos.length);
+            nextVideoSrc = positiveVideos[randomIndex];
+        } else { // negative
+            nextVideoSrc = negativeVideo;
+        }
+
+        // 避免重复播放同一个视频
+        const currentVideoSrc = activeVideo.querySelector('source').getAttribute('src');
+        if (nextVideoSrc === currentVideoSrc) return;
+
+        // --- 以下逻辑与 switchVideo 函数类似，用于切换视频 ---
+        inactiveVideo.querySelector('source').setAttribute('src', nextVideoSrc);
+        inactiveVideo.load();
+
+        inactiveVideo.addEventListener('canplaythrough', function onCanPlayThrough() {
+            inactiveVideo.removeEventListener('canplaythrough', onCanPlayThrough);
+            inactiveVideo.play().catch(error => console.error("Video play failed:", error));
+            activeVideo.classList.remove('active');
+            inactiveVideo.classList.add('active');
+            [activeVideo, inactiveVideo] = [inactiveVideo, activeVideo];
+            // 情感触发的视频播放结束后，回归随机播放
+            activeVideo.addEventListener('ended', switchVideo, { once: true });
+        }, { once: true });
+    }
+
 });

style.css

@@ -125,6 +125,33 @@ html, body {
     /* 这个区域现在是空的，可以移除或保留以备将来使用 */
 }
 
+/* --- 语音识别结果显示 --- */
+.transcript-container {
+    position: absolute;
+    bottom: 180px; /* 放置在麦克风按钮上方 */
+    left: 50%;
+    transform: translateX(-50%);
+    width: 80%;
+    max-width: 600px;
+    padding: 15px;
+    background: rgba(0, 0, 0, 0.5);
+    border-radius: 10px;
+    text-align: center;
+    opacity: 0;
+    transition: opacity 0.3s ease-in-out;
+    pointer-events: none; /* 默认不响应鼠标事件 */
+}
+
+.transcript-container.visible {
+    opacity: 1;
+}
+
+#transcript {
+    font-size: 1.2rem;
+    color: #fff;
+    text-shadow: 1px 1px 2px rgba(0,0,0,0.7);
+}
+
 /* --- 底部内容 --- */
 .bottom-bar {
     width: 100%;