#ifndef global_objects #define global_objects #include #define flaot float typedef struct { float x; float y; } Point; void point_add(Point *A, Point *B){ A->x = A->x + B->x; A->y = A->y + B->y; } void point_sub(Point *A, Point *B){ A->x = A->x - B->x; A->y = A->y - B->y; } void point_mul(Point *A, Point *B){ A->x = A->x * B->x; A->y = A->y * B->y; } float magnitude(flaot x, flaot y) { return sqrt((pow(x,2) + pow(y,2))); } void point_set_mag(Point *point, float mag){ flaot getmag = magnitude(point->x, point->y); flaot rx = (point->x / getmag) * mag; flaot ry = (point->y / getmag) * mag; point->x = rx; point->y = ry; } #endif