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#!/usr/bin/perl -w
# Copyright 2011 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 List::Util 'max';
# uncomment this to run the ### lines
#use Smart::Comments;
# There's no states for CornerReplicate, just two tables of 9 values for
# min/max digits.
sub print_table {
my ($name, $aref) = @_;
print "my \@$name = (";
my $entry_width = max (map {length} @$aref);
foreach my $i (0 .. $#$aref) {
printf "%d", $aref->[$i];
if ($i == $#$aref) {
print ");\n";
} else {
print ",";
if (($i % 16) == 15) {
print "\n ".(" " x length($name));
} elsif (($i % 4) == 3) {
print " ";
}
}
}
}
sub print_table9 {
my ($name, $aref) = @_;
print "my \@$name = (";
my $entry_width = max (map {length($_//'')} @$aref);
foreach my $i (0 .. $#$aref) {
printf "%*s", $entry_width, $aref->[$i]//'undef';
if ($i == $#$aref) {
print ");\n";
} else {
print ",";
if (($i % 9) == 8) {
print "\n ".(" " x length($name));
} elsif (($i % 3) == 2) {
print " ";
}
}
}
}
my @min_digit;
my @max_digit;
# range 0 [X,_]
# range 1 [X,X]
# range 2 [_,X]
foreach my $xrange (0,1,2) {
foreach my $yrange (0,1,2) {
my $xr = $xrange;
my $yr = $yrange;
my $key = $xr + 3*$yr; # before rot+transpose
my ($min_digit, $max_digit);
# 3--2
# |
# 0--1
if ($xr == 0) {
# 0 or 3
if ($yr == 0) {
# x,y both low, 0 only
$min_digit = 0;
$max_digit = 0;
} elsif ($yr == 1) {
# y either, 0 or 3
$min_digit = 0;
$max_digit = 3;
} elsif ($yr == 2) {
# y high, 3 only
$min_digit = 3;
$max_digit = 3;
}
} elsif ($xr == 1) {
# x either, any 0,1,2,3
if ($yr == 0) {
# y low, 0 or 1
$min_digit = 0;
$max_digit = 1;
} elsif ($yr == 1) {
# y either, 0,1,2,3
$min_digit = 0;
$max_digit = 3;
} elsif ($yr == 2) {
# y high, 2,3 only
$min_digit = 2;
$max_digit = 3;
}
} else {
# x high, 1 or 2
if ($yr == 0) {
# y low, 1 only
$min_digit = 1;
$max_digit = 1;
} elsif ($yr == 1) {
# y either, 1 or 2
$min_digit = 1;
$max_digit = 2;
} elsif ($yr == 2) {
# y high, 2 only
$min_digit = 2;
$max_digit = 2;
}
}
if (defined $min_digit[$key]) {
die "oops min_digit[] already: key=$key value=$min_digit[$key], new=$min_digit";
}
$min_digit[$key] = $min_digit;
$max_digit[$key] = $max_digit;
}
}
### @min_digit
print_table9 ("min_digit", \@min_digit);
print_table9 ("max_digit", \@max_digit);
print "\n";
exit 0;
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