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#!/usr/bin/perl -w
# Copyright 2011, 2012, 2013 Kevin Ryde
# This file is part of Math-PlanePath.
#
# Math-PlanePath is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
#
# Math-PlanePath is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with Math-PlanePath. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use Test;
plan tests => 14;
use lib 't','xt';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings(); }
use MyOEIS;
use Math::PlanePath::SierpinskiCurve;
use Math::NumSeq::PlanePathTurn;
# uncomment this to run the ### lines
#use Smart::Comments '###';
#------------------------------------------------------------------------------
# A189706 - turn sequence odd positions
MyOEIS::compare_values
(anum => 'A189706',
func => sub {
my ($count) = @_;
my $seq = Math::NumSeq::PlanePathTurn->new
(planepath => 'SierpinskiArrowhead',
turn_type => 'Right');
my @got;
for (my $i = 1; @got < $count; $i+=2) {
push @got, $seq->ith($i);
}
return \@got;
});
#------------------------------------------------------------------------------
# A189707 - (N+1)/2 of positions of odd N left turns
MyOEIS::compare_values
(anum => 'A189707',
func => sub {
my ($count) = @_;
my $seq = Math::NumSeq::PlanePathTurn->new
(planepath => 'SierpinskiArrowhead',
turn_type => 'Left');
my @got;
for (my $i = 1; @got < $count; $i+=2) {
my $left = $seq->ith($i);
if ($left) {
push @got, ($i+1)/2;
}
}
return \@got;
});
#------------------------------------------------------------------------------
# A189708 - (N+1)/2 of positions of odd N right turns
MyOEIS::compare_values
(anum => 'A189708',
func => sub {
my ($count) = @_;
my $seq = Math::NumSeq::PlanePathTurn->new
(planepath => 'SierpinskiArrowhead',
turn_type => 'Right');
my @got;
for (my $i = 1; @got < $count; $i+=2) {
my $right = $seq->ith($i);
if ($right) {
push @got, ($i+1)/2;
}
}
return \@got;
});
#------------------------------------------------------------------------------
# A156595 - turn sequence even positions
MyOEIS::compare_values
(anum => 'A156595',
func => sub {
my ($count) = @_;
my $seq = Math::NumSeq::PlanePathTurn->new
(planepath => 'SierpinskiArrowhead',
turn_type => 'Right');
my @got;
for (my $i = 2; @got < $count; $i+=2) {
push @got, $seq->ith($i);
}
return \@got;
});
#------------------------------------------------------------------------------
exit 0;
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