Function operator-

demo/Blackholio/server-cpp/spacetimedb/src/lib.cpp:58–60

}

inline DbVector2 operator-(const DbVector2& a, const DbVector2& b) {
    return DbVector2(a.x - b.x, a.y - b.y);
}

inline DbVector2& operator+=(DbVector2& a, const DbVector2& b) {
    a.x += b.x;