void dock_move_docked_objects(object *objp)
{
Assert(objp != NULL);
if ((objp->type != OBJ_SHIP) && (objp->type != OBJ_START))
return;
if (!object_is_docked(objp))
return;
// has this object (by extension, this group of docked objects) been handled already?
if (objp->flags[Object::Object_Flags::Docked_already_handled])
return;
Assert((objp->instance >= 0) && (objp->instance < MAX_SHIPS));
dock_function_info dfi;
object *fastest_objp;
// in FRED, objp is the object everyone moves with
if (Fred_running)
{
fastest_objp = objp;
}
else
{
// find the object with the highest max speed
dock_evaluate_all_docked_objects(objp, &dfi, dock_find_max_speed_helper);
fastest_objp = dfi.maintained_variables.objp_value;
// if we have no max speed, just use the first one
if (fastest_objp == NULL)
fastest_objp = objp;
}
// start a tree with that object as the parent... do NOT use the überfunction for this,
// because we must use a tree for the parent ancestry to work correctly
// we don't need a bit array because OF_DOCKED_ALREADY_HANDLED takes care of it
// and must persist for the entire game frame
// start evaluating the tree, starting with the fastest object having no parent
dock_move_docked_children_tree(fastest_objp, NULL);
}
void dock_move_docked_children_tree(object *objp, object *parent_objp)
{
// has this object been handled already?
if (objp->flags & OF_DOCKED_ALREADY_HANDLED)
return;
// mark as handled
objp->flags |= OF_DOCKED_ALREADY_HANDLED;
// if parent_objp exists
if (parent_objp != NULL)
{
// move this object to align with it
obj_move_one_docked_object(objp, parent_objp);
}
// iterate through all docked objects
for (dock_instance *ptr = objp->dock_list; ptr != NULL; ptr = ptr->next)
{
// start another tree with the docked object as the root and this object as the parent
dock_move_docked_children_tree(ptr->docked_objp, objp);
}
}
void dock_move_docked_children_tree(object *objp, object *parent_objp)
{
// has this object been handled already?
if (objp->flags[Object::Object_Flags::Docked_already_handled])
return;
// mark as handled
objp->flags.set(Object::Object_Flags::Docked_already_handled);
// if parent_objp exists
if (parent_objp != NULL)
{
// move this object to align with it
obj_move_one_docked_object(objp, parent_objp);
}
// iterate through all docked objects
for (dock_instance *ptr = objp->dock_list; ptr != NULL; ptr = ptr->next)
{
// start another tree with the docked object as the root and this object as the parent
dock_move_docked_children_tree(ptr->docked_objp, objp);
}
}
