//logger and like factory but not factory block creation #include #include #include #include #include //logger ////////////////////////////////// #define LOG(str)\ do{logger l(str);}while(false) #define LOG_PRINT()\ do{logger ll; ll.print();}while(false) using namespace std; class logger { public: logger() {} logger(string str) { logger* l = logger::getInstance(); l->log(str); } private: static logger* instance; static vector data; static int num; public: void log(string str) { num++; data.push_back(to_string(num) + ": " + str); } void print() { for (auto s : data)cout << s << endl; }; static logger* getInstance() { if (instance == NULL) { instance = new logger(); instance->num = 0; instance->data.push_back(to_string(num) + ": start log"); } return instance; } }; vector logger::data; int logger::num(0); logger* logger::instance = NULL; //end of logger ////////////////////////////////////// typedef struct { unsigned int r, g, b, a; }Fcolor; typedef struct { float x, y, z; }FVector; enum block_type { cube, sphere }; #define DEFAULT_COLOR {0, 0, 0, 0} #define DEFAULT_POSITION { 0,0,0 } #define DEFAULT_CUBE_EDGE 1.0 #define DEFAULT_SPHERE_RADIUS 1.0 #define DEFAULT_CUBE_SAFETY_DISTANCE 0.707 //sqrt(1/2) from center of cube class block { public: virtual float distance(block *second) = 0; virtual FVector getPosition()=0; virtual float getSafety_distance()=0; private: Fcolor clr = DEFAULT_COLOR; FVector position = DEFAULT_POSITION; unsigned int id=0; }; struct ID { static unsigned int _id; }; unsigned int ID::_id = 0; class cube_block :public block, public ID { public: float distance(block* second) { return( hypot( (this->position.x) - ((second->getPosition()).x), (this->position.y) - ((second->getPosition()).y), (this->position.z) - ((second->getPosition()).z) ) - this->safety_dist - second->getSafety_distance() ); } FVector getPosition() { return position; } float getSafety_distance() { return safety_dist; } cube_block(): id((ID::_id)++), clr(DEFAULT_COLOR), position(DEFAULT_POSITION), edge(DEFAULT_CUBE_EDGE), safety_dist(sqrt(edge*edge/2)), type(block_type::cube) { LOG("block created, id: " + to_string(id) + " type: " + to_string(type)); }; cube_block(Fcolor c,FVector pos,float _edge): id((ID::_id)++), clr(c), position(pos), edge(_edge), safety_dist(sqrt(_edge*_edge/2)), type(block_type::cube) { LOG("block created, id: " + to_string(id) + " type: " + to_string(type)); }; private: int type; private: Fcolor clr; FVector position; unsigned int id; float edge, safety_dist; }; class sphere_block :public block, public ID { public: float distance(block* second) {return 0;} FVector getPosition() {return position;} float getSafety_distance() {return safety_dist;} sphere_block(): id((ID::_id)++), clr(DEFAULT_COLOR), position(DEFAULT_POSITION), radius(DEFAULT_SPHERE_RADIUS), safety_dist(0), type(block_type::sphere) { LOG("block created, id: " + to_string(id) + " type: " + to_string(type)); }; sphere_block(Fcolor c, FVector pos,float _radius) : id((ID::_id)++), clr(c), position(pos), radius(_radius), safety_dist(0), type(block_type::sphere) { LOG("block created, id: " + to_string(id) + " type: " + to_string(type)); }; private: int type; private: Fcolor clr; FVector position; unsigned int id; float radius, safety_dist; }; int main() { LOG("first"); LOG("second"); //cube_block c1(DEFAULT_COLOR,DEFAULT_POSITION,DEFAULT_CUBE_EDGE); //sphere_block c1(DEFAULT_COLOR,DEFAULT_POSITION,DEFAULT_SPHERE_RADIUS); cube_block c2, c3, c4; sphere_block c5, c6, c7; block* b = new sphere_block; block* bb = new cube_block; LOG_PRINT(); return 1; };

logger for different abstract class child