1 files changed, 88 insertions, 0 deletions
diff --git a/Stars45/RLoc.cpp b/Stars45/RLoc.cpp
new file mode 100644
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--- /dev/null
+++ b/Stars45/RLoc.cpp
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+/*  Project Starshatter 4.5
+    Destroyer Studios LLC
+    Copyright © 1997-2004. All Rights Reserved.
+
+    SUBSYSTEM:    Stars.exe
+    FILE:         RLoc.cpp
+    AUTHOR:       John DiCamillo
+
+
+    OVERVIEW
+    ========
+    Navigation Point class implementation
+*/
+
+#include "MemDebug.h"
+#include "RLoc.h"
+#include "Random.h"
+
+// +----------------------------------------------------------------------+
+
+RLoc::RLoc()
+   : rloc(0), dex(0), dex_var(5.0e3f), az(0), az_var(3.1415f), el(0), el_var(0.1f)
+{ }
+
+RLoc::RLoc(const Point& l, double d, double dv)
+   : loc(l), base_loc(l), rloc(0), dex((float) d), dex_var((float) dv), 
+     az(0), az_var(3.1415f), el(0), el_var(0.1f)
+{ }
+
+RLoc::RLoc(RLoc* l, double d, double dv)
+   : rloc(l), dex((float) d), dex_var((float) dv), 
+     az(0), az_var(3.1415f), el(0), el_var(0.1f)
+{ }
+
+RLoc::RLoc(const RLoc& r)
+   : loc(r.loc), base_loc(r.base_loc), rloc(r.rloc), 
+     dex(r.dex), dex_var(r.dex_var),
+     az(r.az),   az_var(r.az_var),
+     el(r.el),   el_var(r.el_var)
+{ }
+
+RLoc::~RLoc()
+{ }
+
+// +----------------------------------------------------------------------+
+
+const Point&
+RLoc::Location()
+{
+   if (rloc || dex > 0) Resolve();
+   return loc;
+}
+
+// +----------------------------------------------------------------------+
+
+void
+RLoc::Resolve()
+{
+   if (rloc) {
+      base_loc = rloc->Location();
+      rloc = 0;
+   }
+
+   if (dex > 0) {
+      double d = dex + Random(-dex_var, dex_var);
+      double a = az  + Random(-az_var,  az_var);
+      double e = el  + Random(-el_var,  el_var);
+
+      Point  p = Point(d *  sin(a),
+                       d * -cos(a),
+                       d *  sin(e));
+
+      loc = base_loc + p;
+      dex = 0;
+   }
+   else {
+      loc = base_loc;
+   }
+}
+
+// +----------------------------------------------------------------------+
+
+void
+RLoc::SetBaseLocation(const Point& l)
+{
+   base_loc = l;
+   loc      = l;
+}