public function crossing()
{
River::LogHeader();
// by inserting header delete all previous info in log file
if (Config::getChildren() == 1) {
echo "Not enough children to cross the river. Are you sure you took all your kids from home?";
} else {
if (Config::getChildren() == 0) {
if (Config::getAdults() == 0) {
echo "I guess all are staying at home, nobody wanted to move to the other bank, yep?";
} else {
echo "Not enough children to cross the river. Are you sure you took all your kids from home?";
}
} else {
if (Config::getAdults() > 0) {
for ($i = 0; $i < Config::getAdults(); $i++) {
$this->move++;
$this->transfer($this->move);
Child::twoChildrenMove();
$this->move++;
$this->transfer($this->move);
Child::childBack();
$this->move++;
$this->transfer($this->move);
Adult::move();
$this->move++;
$this->transfer($this->move);
Child::childBack();
}
}
if (Config::getChildren() > 2) {
for ($i = 0; $i < Config::getChildren() - 2; $i++) {
$this->move++;
$this->transfer($this->move);
Child::childMove();
$this->move++;
$this->transfer($this->move);
Child::childBack();
}
}
// move boatOwner - goes in any case
$this->move++;
$this->transfer($this->move);
Child::twoChildrenMove();
$this->move++;
$this->transfer($this->move);
Child::ChildBack();
$this->move++;
$this->transfer($this->move);
Fisherman::move();
$this->move++;
$this->transfer($this->move);
Child::childBack();
//finally move 2 last children to right bank - goes in any case
$this->move++;
$this->transfer($this->move);
Child::twoChildrenMove();
echo "they will have to cross the river " . $this->move . " times.";
}
}
}