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##" );
}
}
}
}
void Migration::Impl::createMigrationToCity( PlayerCityPtr city )
{
unsigned int vh = calcVacantHouse( city );
if( vh == 0 )
{
return;
}
EmigrantList migrants;
migrants << city->walkers();
if( vh <= migrants.size() * 5 )
{
return;
}
Tile& roadTile = city->tilemap().at( city->borderInfo().roadEntry );
ImmigrantPtr emigrant = Immigrant::create( city );
if( emigrant.isValid() )
{
bool success = emigrant->send2city( roadTile );
emigrant->setSpeedMultiplier( 0.8f + math::random( 40 ) / 100.f );
if( success )
lastMonthComing += emigrant->peoples().count();
}
}