Engine directory for ticket #1

Engine/source/util/triRayCheck.h

@@ -0,0 +1,44 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// Ray to triangle intersection test code originally by Tomas Akenine-Möller
+// and Ben Trumbore.
+// http://www.cs.lth.se/home/Tomas_Akenine_Moller/code/
+// Ported to TGE by DAW, 2005-7-15
+//-----------------------------------------------------------------------------
+
+#ifndef _TRIRAYCHECK_H_
+#define _TRIRAYCHECK_H_
+
+#include "math/mPoint2.h"
+#include "math/mPoint3.h"
+
+bool intersect_triangle(Point3F orig, Point3F dir,
+                   Point3F vert0, Point3F vert1, Point3F vert2,
+                   F32& t, F32& u, F32& v);
+
+//*** Taken from TSE, but based on the above
+bool castRayTriangle(Point3F orig, Point3F dir, Point3F vert0, Point3F vert1, Point3F vert2, F32 &t, Point2F &bary);
+bool castRayTriangle(const Point3D &orig, const Point3D &dir, const Point3D &vert0, const Point3D &vert1, const Point3D &vert2);
+
+#endif // _TRIRAYCHECK_H_