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diff --git a/Stars45/NavLight.h b/Stars45/NavLight.h
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+/*  Starshatter OpenSource Distribution
+    Copyright (c) 1997-2004, Destroyer Studios LLC.
+    All Rights Reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name "Destroyer Studios" nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    SUBSYSTEM:    Stars.exe
+    FILE:         NavLight.h
+    AUTHOR:       John DiCamillo
+
+
+    OVERVIEW
+    ========
+    Navigation Lights System class
+*/
+
+#ifndef NavLight_h
+#define NavLight_h
+
+#include "Types.h"
+#include "System.h"
+#include "DriveSprite.h"
+#include "Geometry.h"
+
+// +--------------------------------------------------------------------+
+
+class NavLight : public System
+{
+public:
+    enum Constants { MAX_LIGHTS = 8 };
+
+    NavLight(double period, double scale);
+    NavLight(const NavLight& rhs);
+    virtual ~NavLight();
+
+    static void    Initialize();
+    static void    Close();
+
+    virtual void   ExecFrame(double seconds);
+
+    int            NumBeacons()      const { return nlights;       }
+    Sprite*        Beacon(int index) const { return beacon[index]; }
+    bool           IsEnabled()       const { return enable;        }
+
+    virtual void   Enable();
+    virtual void   Disable();
+    virtual void   AddBeacon(Point loc, DWORD pattern, int type=1);
+    virtual void   SetPeriod(double p);
+    virtual void   SetPattern(int index, DWORD p);
+    virtual void   SetOffset(DWORD o);
+
+    virtual void   Orient(const Physical* rep);
+
+protected:
+    double      period;
+    double      scale;
+    bool        enable;
+
+    int         nlights;
+
+    Point          loc[MAX_LIGHTS];
+    DriveSprite*   beacon[MAX_LIGHTS];
+    DWORD          pattern[MAX_LIGHTS];
+    int            beacon_type[MAX_LIGHTS];
+    DWORD          offset;
+};
+
+#endif NavLight_h
+