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Handle boundaries by modulo instead

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Mikael Nordin 2016-10-29 01:20:45 +02:00 • committed by GitHub
parent db4efaa87a
commit 26384c15d3
1 changed files with 3 additions and 10 deletions
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13
cellaut.pl
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@ -97,16 +97,9 @@ for (my $gen = 0; $gen < $gens; $gen++) {
# This is the next evoultion of the the automation
my @next;
for (my $elem = 0; $elem < $width ; $elem++) {
# Boundary conditions
my $state;
if($elem == 0 ) {
$state = $initial[$width -1] . $initial[$elem] . $initial[$elem +1 ] ;
} elsif ($elem == $width -1 ) {
$state = $initial[$elem-1] . $initial[$elem] . $initial[0];
# Normal, we are not on the boundary
} else {
$state = $initial[$elem - 1] . $initial[$elem] . $initial[$elem +1];
}
# Boundary conditions handled by modulo so we wrap around
my $state = $initial[$elem - 1 % $width] . $initial[$elem] . $initial[$elem +1 % $width];
# Get the corresponding value for this state
$next[$elem] = get_val_at_pos oct("0b".$state);
}