Kayne Ruse
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
#ifndef VECTOR2_H_
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#define VECTOR2_H_
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#include <stdexcept>
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#include <cmath>
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class Vector2 {
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public:
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/* Public access members */
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double x, y;
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inline Vector2():
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x(0), y(0)
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{
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}
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inline Vector2(double d):
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x(d), y(d)
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{
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}
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inline Vector2(double _x, double _y):
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x(_x), y(_y)
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{
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}
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inline double Length() {
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return sqrt(x*x+y*y);
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}
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inline double SquaredLength() {
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return x*x+y*y;
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}
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inline double operator[](size_t i) {
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if (i >= 2)
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throw(std::domain_error("Out of range"));
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return *(&x+i);
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}
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/* Arithmetic operators */
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inline Vector2 operator+(Vector2 v) { return Vector2(x + v.x, y + v.y); }
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inline Vector2 operator-(Vector2 v) { return Vector2(x - v.x, y - v.y); }
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inline Vector2 operator*(Vector2 v) { return Vector2(x * v.x, y * v.y); }
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inline Vector2 operator*(double d) { return Vector2(x * d, y * d); }
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inline Vector2 operator/(Vector2 v) {
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if (!v.x || !v.y)
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throw(std::domain_error("Divide by zero"));
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return Vector2(x / v.x, y / v.y);
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}
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inline Vector2 operator/(double d) {
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if (!d)
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throw(std::domain_error("Divide by zero"));
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return Vector2(x / d, y / d);
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}
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template<typename T> inline Vector2 operator+=(T t) { return *this = *this + t; }
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template<typename T> inline Vector2 operator-=(T t) { return *this = *this - t; }
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template<typename T> inline Vector2 operator*=(T t) { return *this = *this * t; }
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template<typename T> inline Vector2 operator/=(T t) { return *this = *this / t; }
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inline bool operator==(Vector2 v) { return (x == v.x && y == v.y); }
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inline bool operator!=(Vector2 v) { return (x != v.x || y != v.y); }
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template<typename T> inline bool operator==(T t) { return (x == t && y == t); }
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template<typename T> inline bool operator!=(T t) { return (x != t || y != t); }
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};
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#endif
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