onestep             9 movingobject.c                               void(*onestep)(movingobject* obj),
onestep            16 movingobject.c   ret->onestep = onestep;
onestep            12 movingobject.h   void (*onestep)(struct movingobject* obj);
onestep            21 movingobject.h                               void(*onestep)(movingobject* obj),
onestep            76 movingobjectmanager.c     mobj->onestep(mobj);