feat: VFS 虚拟仿真实验核心框架 v2

- 加权评分系统：每步独立 ScoreWeight，满分 100，SequenceClick 按子项比例计分 - StepData 新增 DetailedContent（学习模式详细操作说明）和 SubStepCount - 伤情检查步骤扩展为 5 子项序列（视觉检查→肿胀→疼痛→生命体征→神经评估） - 夹板固定模式完整评分（选择夹板→放置衬垫→夹板固定→固定后检查） - Doc/ 文件夹归档三份文档：项目大纲、文案、评分标准 - README 更新评分权重表和夹板固定流程
2026-06-24 02:07:43 +08:00
commit a11e003fcd
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+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.Video;
+
+/// <summary>
+/// 画中画视频控制器：用 VideoPlayer 渲染到 RenderTexture，再赋给 RawImage。
+/// 挂在包含 RawImage 和 VideoPlayer 的 GameObject 上。
+/// </summary>
+[RequireComponent(typeof(RawImage))]
+public class VideoController : MonoBehaviour
+{
+    [SerializeField] private VideoPlayer _videoPlayer;
+    [SerializeField] private RawImage _rawImage;
+
+    private RenderTexture _renderTexture;
+    private bool _isPlaying;
+
+    private void Awake()
+    {
+        if (_rawImage == null) _rawImage = GetComponent<RawImage>();
+        if (_videoPlayer == null) _videoPlayer = GetComponentInChildren<VideoPlayer>();
+
+        if (_videoPlayer != null)
+        {
+            _videoPlayer.loopPointReached += OnVideoEnd;
+        }
+    }
+
+    /// <summary>播放指定视频文件（StreamingAssets/Videos/ 下）</summary>
+    public void PlayVideo(string fileName)
+    {
+        if (_videoPlayer == null) return;
+
+        string path = System.IO.Path.Combine(Application.streamingAssetsPath, "Videos", fileName);
+        _videoPlayer.url = path;
+
+        // 创建 RenderTexture
+        if (_renderTexture == null)
+        {
+            int w = _videoPlayer.targetTexture != null ? _videoPlayer.targetTexture.width : 640;
+            int h = _videoPlayer.targetTexture != null ? _videoPlayer.targetTexture.height : 360;
+            _renderTexture = new RenderTexture(w, h, 0);
+            _videoPlayer.targetTexture = _renderTexture;
+            if (_rawImage != null) _rawImage.texture = _renderTexture;
+        }
+
+        _videoPlayer.Play();
+        _isPlaying = true;
+        gameObject.SetActive(true);
+    }
+
+    public void StopVideo()
+    {
+        if (_videoPlayer != null) _videoPlayer.Stop();
+        _isPlaying = false;
+        gameObject.SetActive(false);
+    }
+
+    public void PauseVideo()
+    {
+        if (_videoPlayer != null) _videoPlayer.Pause();
+    }
+
+    public void ResumeVideo()
+    {
+        if (_videoPlayer != null) _videoPlayer.Play();
+    }
+
+    private void OnVideoEnd(VideoPlayer vp)
+    {
+        // 真人演示视频播完自动循环
+        vp.Play();
+    }
+
+    private void OnDestroy()
+    {
+        if (_renderTexture != null)
+        {
+            _renderTexture.Release();
+            Destroy(_renderTexture);
+        }
+    }
+}