Initial

engine/POINT3D.HPP

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+#ifndef _ENGINE_POINT3D_HPP_
+#define _ENGINE_POINT3D_HPP_
+#ifndef _COMMON_POINT_HPP_
+#include <common/point.hpp>
+#endif
+#ifndef _COMMON_MATH_HPP_
+#include <common/math.hpp>
+#endif
+
+// do not make changes to this class that will alter its size
+
+class Point3D : public Point
+{
+public:
+	Point3D(void);
+	Point3D(short x,short y,short z=0);
+	Point3D(const Point3D &somePoint3D);
+	~Point3D();
+	WORD operator==(const Point3D &somePoint3D)const;
+	const Point3D &operator=(const Point3D &somePoint3D);
+	const Point3D &operator-=(const Point3D &somePoint3D);
+	int operator*(const Point3D &somePoint3D)const;
+  int distance(const Point3D &somePoint3D)const;
+	short z(void)const;
+	void z(short newz);
+private:
+	short mZ;
+};
+
+inline
+Point3D::Point3D(void)
+: mZ(0)
+{
+}
+
+inline
+Point3D::Point3D(short x,short y,short z)
+: Point(x,y), mZ(z)
+{
+}
+
+inline
+Point3D::Point3D(const Point3D &somePoint3D)
+: mZ(somePoint3D.z())
+{
+	x(somePoint3D.x());
+	y(somePoint3D.y());
+}
+
+inline
+short Point3D::z(void)const
+{
+	return mZ;
+}
+
+inline
+void Point3D::z(short newz)
+{
+	mZ=newz;
+}
+
+inline
+Point3D::~Point3D()
+{
+}
+
+inline
+WORD Point3D::operator==(const Point3D &somePoint3D)const
+{
+	return (mZ==somePoint3D.mZ && (Point&)(*this)==(Point&)somePoint3D);
+}
+
+inline
+const Point3D &Point3D::operator=(const Point3D &somePoint3D)
+{
+	mZ=somePoint3D.mZ;
+	(Point&)(*this)=(Point&)somePoint3D;
+	return *this;
+}
+
+inline
+const Point3D &Point3D::operator-=(const Point3D &somePoint3D)
+{
+	mZ-=somePoint3D.mZ;
+ (Point&)(*this)-=(Point&)somePoint3D;
+ return *this;
+}
+
+inline
+int Point3D::operator*(const Point3D &somePoint3D)const
+{
+  return ((int)x()*(int)somePoint3D.x())+((int)y()*(int)somePoint3D.y())+((int)z()*(int)somePoint3D.z());
+}
+
+inline
+int Point3D::distance(const Point3D &somePoint3D)const
+{
+  int xDiff(somePoint3D.x()-x());
+	int yDiff(somePoint3D.y()-y());
+	return (xDiff*xDiff)+(yDiff*yDiff);
+}
+#endif