52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
#ifndef POINT2_H
|
|
#define POINT2_H
|
|
|
|
#include <cmath>
|
|
|
|
/**
|
|
* 2D Point
|
|
*/
|
|
struct Point2 {
|
|
|
|
float x;
|
|
float y;
|
|
|
|
/** ctor */
|
|
Point2() : x(0), y(0) {;}
|
|
|
|
/** ctor */
|
|
Point2(const float x, const float y) : x(x), y(y) {;}
|
|
|
|
|
|
Point2 operator + (const Point2& o) const {return Point2(x+o.x, y+o.y);}
|
|
|
|
Point2 operator - (const Point2& o) const {return Point2(x-o.x, y-o.y);}
|
|
|
|
Point2 operator * (const float v) const {return Point2(v*x, v*y);}
|
|
|
|
Point2 operator / (const float v) const {return Point2(x/v, y/v);}
|
|
|
|
|
|
Point2& operator *= (const float v) {x*=v; y*=v; return *this;}
|
|
|
|
Point2& operator /= (const float v) {x/=v; y/=v; return *this;}
|
|
|
|
Point2& operator += (const Point2& o) {x+=o.x; y+=o.y; return *this;}
|
|
|
|
Point2& operator -= (const Point2& o) {x-=o.x; y-=o.y; return *this;}
|
|
|
|
|
|
bool operator == (const Point2& o) const {return x==o.x && y==o.y;}
|
|
|
|
|
|
/** get the distance between this point and the other one */
|
|
float getDistance(const Point2& o) const {
|
|
const float dx = x - o.x;
|
|
const float dy = y - o.y;
|
|
return std::sqrt(dx*dx + dy*dy);
|
|
}
|
|
|
|
};
|
|
|
|
#endif // POINT2_H
|