void Migration::Impl::createMigrationFromCity( PlayerCityPtr city )
{
HouseList houses = city->statistic().houses.find();
const int minWorkersNumber = 4;
for( HouseList::iterator i=houses.begin(); i != houses.end(); )
{
int houseWorkless = (*i)->unemployed();
if( !(*i)->enterArea().empty() && houseWorkless > minWorkersNumber ) { ++i; }
else { i = houses.erase( i ); }
}
if( !houses.empty() )
{
int number = math::random( houses.size() );
HouseList randHouses = houses.random( number );
for( auto house : randHouses )
{
ImmigrantPtr emigrant = Immigrant::create( city );
if( emigrant.isValid() )
{
house->removeHabitants( minWorkersNumber );
emigrant->leaveCity( *(house->enterArea().front()) );
emigrant->setThinks( "##immigrant_no_work_for_me##" );
}
}
}
}
HousePtr Immigrant::_findBlankHouse()
{
CityHelper hlp( _getCity() );
HouseList houses = hlp.find< House >( building::house );
HousePtr blankHouse;
_d->destination = TilePos( -1, -1 );
HouseList::iterator itHouse = houses.begin();
while( itHouse != houses.end() )
{
if( (*itHouse)->getAccessRoads().size() > 0 &&
( (*itHouse)->getHabitants().count() < (*itHouse)->getMaxHabitants() ) )
{
itHouse++;
}
else
{
itHouse = houses.erase( itHouse );
}
}
if( houses.size() > 0 )
{
itHouse = houses.begin();
std::advance(itHouse, rand() % houses.size() );
blankHouse = *itHouse;
_d->destination = blankHouse->getTilePos();
}
return blankHouse;
}
HouseList Statistic::_Houses::habitable() const
{
HouseList houses = find();
for( auto it=houses.begin(); it != houses.end(); )
{
if( (*it)->habitants().count() > 0 ) ++it;
else it = houses.erase( it );
}
return houses;
}
HouseList Statistic::_Houses::ready4evolve(const object::TypeSet& checkTypes ) const
{
HouseList houses = find();
for( auto it=houses.begin(); it != houses.end(); )
{
object::Type btype;
(*it)->spec().next().checkHouse( *it, nullptr, &btype );
if( checkTypes.count( btype ) ) it = houses.erase( it );
else ++it;
}
return houses;
}