////  OverlayConductor.h//  interface/src/ui////  Copyright 2015 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #ifndef hifi_OverlayConductor_h#define hifi_OverlayConductor_h #include <cstdint> class OverlayConductor {public:    OverlayConductor();    ~OverlayConductor();     void update(float dt);    void centerUI(); private:    bool headNotCenteredInOverlay() const; #if !defined(DISABLE_QML)    bool _hmdMode { false };#endif     // This stores value of myAvatar->hasDriveInput() from previous update, so that recentering can be triggered by a rising edge of that function's output    bool _lastHasDriveInput { false };}; #endif