POB_2019/zad7_1.cpp

59 lines
1.5 KiB
C++
Raw Normal View History

2019-05-13 14:42:48 +02:00
#include <iostream>
#include <string>
#include <sstream>
using namespace std;
class Vec2 {
private:
int x,y;
public:
Vec2(int _x, int _y){
x=_x;
y=_y;
}
string toString(){
stringstream s;
s << "[" << x << ", " << y << "]";
return s.str();
}
friend Vec2 operator+(const Vec2& vec1, const Vec2& vec2){
return Vec2(vec1.x+vec2.x, vec1.y+vec2.y);
}
friend Vec2 operator-(const Vec2& vec1, const Vec2& vec2){
return Vec2(vec1.x-vec2.x, vec1.y-vec2.y);
}
Vec2& operator+=(const Vec2& vec){
x=vec.x+x;
y=vec.y+y;
return *this;
}
Vec2& operator-=(const Vec2& vec){
x=vec.x-x;
y=vec.y-y;
return *this;
}
friend float operator*(const Vec2& vec1, const Vec2& vec2){
return (float)vec1.x*vec2.x + (float)vec1.y+vec2.y;
}
bool operator==(const Vec2& vec){
if(x==vec.x && y==vec.y) return 1;
else return 0;
}
bool operator!=(const Vec2& vec){
if(x==vec.x && y==vec.y) return 0;
else return 1;
}
};
int main(){
Vec2 vec1 = Vec2(5,1);
Vec2 vec2 = Vec2(3,4);
Vec2 vec3 = vec1 + vec2;
cout << vec3.toString() << endl;
vec3+=vec2;
cout << vec3.toString() << endl;
vec3-=vec1;
cout << vec3.toString() << endl;
cout << vec3*vec2 << endl;
}