Function AttachDoPosOrient

Descent3/attach.cpp:285–399

}

bool AttachDoPosOrient(object *parent, char parent_ap, object *child, char child_ap, bool f_parent, bool f_move_obj,
                       vector *pos, matrix *orient, bool f_dropping_off) {
  vector goal_fvec;
  vector goal_uvec;
  vector goal_pos;

  bool f_use_uvec = true;

  vector start_fvec;
  vector start_uvec;
  vector start_pos;

  object *goal_obj;
  object *start_obj;

  matrix rot_mat;

  char goal_ap;
  char start_ap;

  if (f_parent) {
    goal_obj = child;
    goal_ap = child_ap;

    start_obj = parent;
    start_ap = parent_ap;
  } else {
    goal_obj = parent;
    goal_ap = parent_ap;

    start_obj = child;
    start_ap = child_ap;
  }

  vector saved_pos = start_obj->pos;
  matrix saved_orient = start_obj->orient;

  f_use_uvec = true;
  AttachPointPos(goal_obj, goal_ap, true, &goal_pos, true, &goal_fvec, &f_use_uvec, &goal_uvec);
  goal_fvec *= -1.0f;

  f_use_uvec = true;
  if (f_dropping_off) {
    object *attached_obj = ObjGet(start_obj->attach_children[0]);
    ASSERT(attached_obj);
    AttachPointPos(attached_obj, start_ap, true, &start_pos, true, &start_fvec, &f_use_uvec, &start_uvec);
  } else {
    AttachPointPos(start_obj, start_ap, true, &start_pos, true, &start_fvec, &f_use_uvec, &start_uvec);
  }

  vm_NormalizeVector(&start_fvec);
  vm_NormalizeVector(&start_uvec);
  vm_NormalizeVector(&goal_fvec);
  vm_NormalizeVector(&goal_uvec);

  matrix start_m;
  matrix goal_m;