67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
#pragma once
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#ifndef TCG_POINT_H
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#define TCG_POINT_H
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//*************************************************************
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// tcg Generic Point Class
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//*************************************************************
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namespace tcg {
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/*!
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The Point class models a point in a bidimensional vector space. It has 2
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members,
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x and y, representing its coordinates, and a constructor prototype:
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Point_class(const value_type& x, const value_type& y);
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*/
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template <typename T>
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struct PointT {
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typedef T value_type;
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value_type x, y;
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PointT() : x(0), y(0) {}
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PointT(const value_type &x_, const value_type &y_) : x(x_), y(y_) {}
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bool operator==(const PointT &other) const {
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return (x == other.x) && (y == other.y);
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}
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bool operator!=(const PointT &other) const { return !operator==(other); }
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};
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//******************************************************************************
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// Common typedefs
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//******************************************************************************
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typedef PointT<int> Point;
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typedef PointT<int> PointI;
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typedef PointT<double> PointD;
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//*************************************************************
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// tcg Generic Point Traits
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//*************************************************************
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template <typename P>
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struct point_traits {
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typedef P point_type;
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typedef typename P::value_type value_type;
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typedef typename P::value_type float_type;
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inline static value_type x(const point_type &p) { return p.x; }
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inline static value_type y(const point_type &p) { return p.y; }
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};
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template <>
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struct point_traits<PointI> {
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typedef PointI point_type;
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typedef PointI::value_type value_type;
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typedef double float_type;
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inline static value_type x(const point_type &p) { return p.x; }
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inline static value_type y(const point_type &p) { return p.y; }
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};
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} // namespace tcg
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#endif // TCG_POINT_H
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