Moved Stars45 to StarsEx

1 files changed, 168 insertions, 0 deletions

diff --git a/StarsEx/Graphic.cpp b/StarsEx/Graphic.cpp
new file mode 100644
index 0000000..ff8115b
--- /dev/null
+++ b/StarsEx/Graphic.cpp
@@ -0,0 +1,168 @@
+/*  Starshatter: The Open Source Project
+    Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
+    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
+    Copyright (c) 1997-2006, Destroyer Studios LLC.
+
+    AUTHOR:       John DiCamillo
+
+
+    OVERVIEW
+    ========
+    Abstract 3D Graphic Object
+*/
+
+#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_s(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;
+}