Copy* User::Buy(Book* book)
{
RoleManage::Valid(this, Role::Guest);
if (book->Price() > money) throw OperationFail("You have no enough money");
Copy* re = Core::BookMng->books.FetchCopy(book);
if (!re) throw OperationFail("Can't buy the book, books has already sell out.");
Core::BookMng->books.Remove(re);
AddCopy(re);
money -= book->Price();
return re;
}
/**--------------------------------------------------------------------------<BR>
C2DLineBaseSet::MakeCopy
\brief Makes a copy of the other set.
<P>---------------------------------------------------------------------------*/
void C2DLineBaseSet::MakeCopy( const C2DLineBaseSet& Other)
{
DeleteAll();
AddCopy(Other);
}
void User::Add(Book* book, int cnt)
{
RoleManage::Valid(this, Role::Admin);
for (int i = 0; i < cnt; ++i)
AddCopy(&Copy(book));
}
/**--------------------------------------------------------------------------<BR>
C2DPolygonSet::MakeCopy
\brief Makes a copy of the set provided.
<P>---------------------------------------------------------------------------*/
void C2DPolygonSet::MakeCopy( const C2DPolygonSet& Other)
{
DeleteAll( );
AddCopy(Other);
}
