added 3dengfx into the repo, probably not the correct version for this

[summerhack] / src / 3dengfx / src / gfx / bvol.hpp

diff --git a/src/3dengfx/src/gfx/bvol.hpp b/src/3dengfx/src/gfx/bvol.hpp
new file mode 100644 (file)
index 0000000..9a36720
--- /dev/null
+++ b/src/3dengfx/src/gfx/bvol.hpp
@@ -0,0 +1,57 @@
+/*
+This file is part of the graphics core library.
+
+Copyright (c) 2004, 2005 John Tsiombikas <nuclear@siggraph.org>
+
+the graphics core library is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+the graphics core library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with the graphics core library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/* Bounding volumes
+ *
+ * Author: John Tsiombikas 2005
+ */
+
+#ifndef _BVOL_HPP_
+#define _BVOL_HPP_
+
+#include <vector>
+#include "n3dmath2/n3dmath2.hpp"
+#include "gfx/base_cam.hpp"
+
+class BoundingVolume {
+protected:
+       BoundingVolume *parent;
+       std::vector<BoundingVolume*> children;
+       Matrix4x4 transform;
+
+public:
+       BoundingVolume();
+       virtual ~BoundingVolume();
+
+       virtual void set_transform(const Matrix4x4 &transform);
+
+       virtual bool ray_hit(const Ray &ray) const = 0;
+       virtual bool visible(const FrustumPlane *frustum) const = 0;
+};
+
+class BoundingSphere : public BoundingVolume, public Sphere {
+public:
+       BoundingSphere(const Vector3 &pos = Vector3(0,0,0), scalar_t rad = 1.0);
+
+       virtual bool ray_hit(const Ray &ray) const;
+       virtual bool visible(const FrustumPlane *frustum) const;
+};
+
+#endif // _BVOL_HPP_