From e33e19d0587146859d48a134ec9fd94e7b7ba5cd Mon Sep 17 00:00:00 2001
From: "FWoltermann@gmail.com"
 <FWoltermann@gmail.com@076cb2c4-205e-83fd-5cf3-1be9aa105544>
Date: Thu, 8 Dec 2011 14:53:40 +0000
Subject: Initial upload

---
 nGenEx/Graphic.cpp | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 170 insertions(+)
 create mode 100644 nGenEx/Graphic.cpp

(limited to 'nGenEx/Graphic.cpp')

diff --git a/nGenEx/Graphic.cpp b/nGenEx/Graphic.cpp
new file mode 100644
index 0000000..7d63301
--- /dev/null
+++ b/nGenEx/Graphic.cpp
@@ -0,0 +1,170 @@
+/*  Project nGenEx
+    Destroyer Studios LLC
+    Copyright © 1997-2004. All Rights Reserved.
+
+    SUBSYSTEM:    nGenEx.lib
+    FILE:         Graphic.cpp
+    AUTHOR:       John DiCamillo
+
+
+    OVERVIEW
+    ========
+    Abstract 3D Graphic Object
+*/
+
+#include "MemDebug.h"
+#include "Graphic.h"
+#include "Scene.h"
+#include "Projector.h"
+
+// +--------------------------------------------------------------------+
+
+int Graphic::id_key = 1;
+
+// +--------------------------------------------------------------------+
+
+Graphic::Graphic()
+   : id(id_key++), visible(true), loc(0.0f, 0.0f, 0.0f),
+     radius(0.0f), infinite(0), foreground(0), hidden(0), life(-1),
+     trans(false), shadow(false), luminous(false), depth(0.0f), scene(0)
+{
+   screen_rect.x = 0;
+   screen_rect.y = 0;
+   screen_rect.w = 0;
+   screen_rect.h = 0;
+
+   ZeroMemory(name, sizeof(name));
+   strcpy(name, "Graphic");
+}
+
+// +--------------------------------------------------------------------+
+
+Graphic::~Graphic()
+{ }
+
+int
+Graphic::operator < (const Graphic& g) const
+{
+   if (!infinite && g.infinite)
+      return 1;
+
+   else if (infinite && !g.infinite)
+      return 0;
+
+   double za = fabs(Depth());
+   double zb = fabs(g.Depth());
+
+   return (za < zb);
+}
+
+int
+Graphic::operator <= (const Graphic& g) const
+{
+   if (!infinite && g.infinite)
+      return 1;
+
+   else if (infinite && !g.infinite)
+      return 0;
+
+   double za = fabs(Depth());
+   double zb = fabs(g.Depth());
+
+   return (za <= zb);
+}
+
+// +--------------------------------------------------------------------+
+
+void
+Graphic::SetInfinite(bool b)
+{
+   infinite = (BYTE) b;
+
+   if (infinite)
+      depth = 1.0e9f;
+}
+
+// +--------------------------------------------------------------------+
+
+int
+Graphic::Nearer(Graphic* a, Graphic* b)
+{
+   if (a->depth < b->depth) return -1;
+   else if (a->depth == b->depth) return 0;
+   else return 1;
+}
+
+// +--------------------------------------------------------------------+
+
+int
+Graphic::Farther(Graphic* a, Graphic* b)
+{
+   if (a->depth > b->depth) return -1;
+   else if (a->depth == b->depth) return 0;
+   else return 1;
+}
+
+// +--------------------------------------------------------------------+
+
+void
+Graphic::Destroy()
+{
+   if (scene)
+      scene->DelGraphic(this);
+
+   delete this;
+}
+
+// +--------------------------------------------------------------------+
+
+int
+Graphic::CollidesWith(Graphic& o)
+{
+   Point delta_loc = loc - o.loc;
+
+   // bounding spheres test:
+   if (delta_loc.length() > radius + o.radius)
+      return 0;
+
+   return 1;
+}
+
+// +--------------------------------------------------------------------+
+
+int
+Graphic::CheckRayIntersection(Point Q, Point w, double len, Point& ipt,
+                              bool treat_translucent_polys_as_solid)
+{
+   return 0;
+}
+
+// +--------------------------------------------------------------------+
+
+void
+Graphic::ProjectScreenRect(Projector* p)
+{
+   screen_rect.x = 2000;
+   screen_rect.y = 2000;
+   screen_rect.w = 0;
+   screen_rect.h = 0;
+}
+
+// +--------------------------------------------------------------------+
+
+bool
+Graphic::CheckVisibility(Projector& projector)
+{
+   if (projector.IsVisible(     Location(), Radius()) &&
+       projector.ApparentRadius(Location(), Radius()) > 1) {
+
+      visible        = true;
+   }
+   else {
+      visible        = false;
+      screen_rect.x  = 2000;
+      screen_rect.y  = 2000;
+      screen_rect.w  = 0;
+      screen_rect.h  = 0;
+   }
+       
+   return visible;
+}
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