Function handleStop

packages/editor-app/src/components/Viewport.tsx:1406–1435

()

    };

    const handleStop = async () => {
        setPlayState('stopped');
        engine.stop();

        // 重置 RuntimeSceneManager 状态（但保留实例以便下次 Play 复用）
        // Reset RuntimeSceneManager state (but keep instance for next Play reuse)
        if (runtimeSceneManagerRef.current) {
            const GlobalSceneManagerKey = Symbol.for('@esengine/service:runtimeSceneManager');
            if (Core.services.isRegistered(GlobalSceneManagerKey)) {
                Core.services.unregister(GlobalSceneManagerKey);
            }
            // 调用 reset() 而不是 dispose()，保留 sceneLoader 以便复用
            // Call reset() instead of dispose(), keep sceneLoader for reuse
            runtimeSceneManagerRef.current.reset();
            // 注意：不设置 ref 为 null，保留实例
            // Note: Don't set ref to null, keep the instance
            console.log('[Viewport] RuntimeSceneManager reset (instance kept for reuse)');
        }

        // Restore scene snapshot
        await EngineService.getInstance().restoreSceneSnapshot();
        // Restore editor camera state
        setCamera2DOffset({ x: editorCameraRef.current.x, y: editorCameraRef.current.y });
        setCamera2DZoom(editorCameraRef.current.zoom);
        // Restore editor mode (restores grid, gizmos, axis indicator based on settings)
        // 恢复编辑器模式（根据设置恢复网格、gizmos、坐标轴指示器）
        EngineService.getInstance().setEditorMode(true);
        // Restore editor default background color
        EngineService.getInstance().setClearColor(0.1, 0.1, 0.12, 1.0);
    };

    const handleReset = () => {
        // Reset camera to origin without stopping playback