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diff --git a/Stars45/QuantumDrive.h b/Stars45/QuantumDrive.h
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+/*  Project Starshatter 4.5
+    Destroyer Studios LLC
+    Copyright © 1997-2004. All Rights Reserved.
+
+    SUBSYSTEM:    Stars.exe
+    FILE:         QuantumDrive.h
+    AUTHOR:       John DiCamillo
+
+
+    OVERVIEW
+    ========
+    Quantum (JUMP) Drive (system) class
+*/
+
+#ifndef QuantumDrive_h
+#define QuantumDrive_h
+
+#include "Types.h"
+#include "System.h"
+#include "Geometry.h"
+
+// +--------------------------------------------------------------------+
+
+class Ship;
+class SimRegion;
+
+// +--------------------------------------------------------------------+
+
+class QuantumDrive : public System
+{
+public:
+   enum SUBTYPE { QUANTUM, HYPER };
+
+   QuantumDrive(SUBTYPE s, double capacity, double sink_rate);
+   QuantumDrive(const QuantumDrive& rhs);
+   virtual ~QuantumDrive();
+
+   enum ACTIVE_STATES {
+      ACTIVE_READY, ACTIVE_COUNTDOWN, ACTIVE_PREWARP, ACTIVE_POSTWARP
+   };
+
+   void              SetDestination(SimRegion* rgn, const Point& loc);
+   bool              Engage(bool immediate=false);
+   int               ActiveState() const { return active_state; }
+   double            WarpFactor()  const { return warp_fov;     }
+   double            JumpTime()    const { return jump_time;    }
+   virtual void      PowerOff();
+
+   virtual void      ExecFrame(double seconds);
+
+   void              SetShip(Ship* s)  { ship = s;    }
+   Ship*             GetShip() const   { return ship; }
+
+   double            GetCountdown() const    { return countdown; }
+   void              SetCountdown(double d)  { countdown = d;    }
+
+protected:
+   void              Jump();
+   void              AbortJump();
+
+   int               active_state;
+
+   Ship*             ship;
+   double            warp_fov;
+   double            jump_time;
+   double            countdown;
+
+   SimRegion*        dst_rgn;
+   Point             dst_loc;
+};
+
+#endif // QuantumDrive_h
+