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include/framework/shape/shape_convex.h

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+/*
+
+		nEngine
+		Emmanuel Julien 2000-2010
+		All Rights Reserved
+
+		http://www.gamestart3d.com
+		Please refer to the included license.txt for license informations.
+
+*/
+
+
+#ifndef	__NSHAPECONVEX__
+#define	__NSHAPECONVEX__
+
+
+		#include "shape/shape.h"
+		#include "container/narray.h"
+
+
+/*!
+	@short	Convex shape class.
+	@author	Emmanuel Julien (ejulien@gsworks.fr)
+*/
+struct	nConvexShape : public nShape
+{
+		Vector4		center;
+		nArray <Vector4> vtx;
+
+virtual	Vector4		&GetCenter() const
+		{	return center;	}
+virtual	float		GetSupportDistance(const Vector4 &d) const
+		{
+			if	(!vtx.GetCount())
+				return 0;
+
+			float	d = vtx[0].Dot(d);
+			for	(uint n = 1; n < vtx.GetCount(); ++n)
+			{
+				float	_d = vtx[n].Dot(d);
+				if	(_d > d)
+					d = _d;
+			}
+			return d;
+		}
+
+		nConvexShape(const Vector4 &c, const nArray <Vector4> &v)
+		{
+			center = c;
+			vtx.Clone(v);
+		}
+		nConvexShape()
+		{
+			center.Set(0, 0, 0);
+		}
+};
+
+
+#endif	// __NSHAPECONVEX__