function isCircular($num)
{
if (!isPrime($num)) {
return false;
}
if ($num > 10) {
$numstr = (string) $num;
if (strstr($numstr, "0") || strstr($numstr, "5") || strstr($numstr, "2") || strstr($numstr, "4") || strstr($numstr, "6") || strstr($numstr, "8")) {
return false;
}
$len = strlen($numstr);
for ($i = 0; $i < $len - 1; $i++) {
$numstr = (string) $num;
$num = rotateLeft($numstr);
if (!isPrime((int) $num)) {
return false;
}
}
}
return true;
}
function carscript()
{
global $posx, $posy, $nextPosx, $nextPosy, $DIYleftWheel, $DIYrightWheel, $prevDIYLeftWheel, $direction;
// Car logic for boundaries
// Recalculate position
if ($DIYleftWheel == 1 && $prevDIYLeftWheel != $DIYleftWheel) {
recalculateCoordinates();
}
$prevDIYLeftWheel = $DIYleftWheel;
if ($nextPosx < 0 || $nextPosx > BOUNDARY_X || $nextPosy < 0 || $nextPosy > BOUNDARY_Y) {
// Out of boundary. Handle same as obstacle.
echo "It has to stop and rotate" . $direction . "!!";
rotateLeft(160);
$direction = $direction + 160;
$carIsRunning = TRUE;
movementLogic();
recalculateCoordinates();
echo "Rotated... in bounds again";
} else {
// we are still inside the boundary. Update posx and posy and execute normal logic.
$posx = $nextPosx;
$posy = $nextPosy;
movementLogic();
}
var_dump($posx . ' ' . $posy . ' ' . $DIYleftWheel . ' ' . $prevDIYLeftWheel);
}
