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include/framework/shape/shape.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NSHAPE__
+#define	__NSHAPE__
+
+
+		#include "math/vector.h"
+
+
+namespace GS {
+
+/*!
+	@short	Shape base class.
+	@author	Emmanuel Julien (ejulien@gsworks.fr)
+*/
+struct	Shape
+{
+		/// Get shape center.
+virtual	Vector4		&GetCenter() const = 0;
+		/// Get distance to support point on a given direction.
+virtual	float		GetSupportDistance(const Vector4 &) const = 0;
+};
+
+} // GS
+
+
+#endif	// __NSHAPE__

include/framework/shape/shape_box.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	__NSHAPEBOX__
+#define	__NSHAPEBOX__
+
+
+		#include "shape/shape.h"
+
+
+/*!
+	@short	Box shape class.
+	@author	Emmanuel Julien (ejulien@gsworks.fr)
+*/
+struct	nBoxShape : public nShape
+{
+		Vector4		center;
+		Vector4		half_d;
+
+virtual	Vector4		&GetCenter() const
+		{	return center;	}
+virtual	float		GetSupportDistance(const Vector4 &d) const
+		{	return d.Abs().Dot(half_d);	}
+
+		nSphereShape(const Vector4 &c, const Vector4 &d)
+		{
+			center = c;
+			half_d = d;
+		}
+		nSphereShape()
+		{
+			center.Set(0, 0, 0);
+			half_d.Set(0, 0, 0);
+		}
+};
+
+
+#endif	// __NSHAPEBOX__

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__

include/framework/shape/shape_sphere.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	__NSHAPESPHERE__
+#define	__NSHAPESPHERE__
+
+
+		#include "shape/shape.h"
+
+
+/*!
+	@short	Sphere shape class.
+	@author	Emmanuel Julien (ejulien@gsworks.fr)
+*/
+struct	nSphereShape : public nShape
+{
+		Vector4		center;
+		float		radius;
+
+virtual	Vector4		&GetCenter() const
+		{	return center;	}
+virtual	float		GetSupportDistance(const Vector4 &) const
+		{	return radius;	}
+
+		nSphereShape(const Vector4 &c, float r)
+		{
+			center = c;
+			radius = r;
+		}
+		nSphereShape()
+		{
+			center.Set(0, 0, 0);
+			radius = 0;
+		}
+};
+
+
+#endif	// __NSHAPESPHERE__