#!/usr/bin/perl

# generated the color_level table used when finding a nearby color in src/command.C

use strict;

my @coeffs =
   # (4, 5, 6, 7);
   # (0.36, 0.6, 0.9, 1.3);
   # (0.4, 0.7, 1.0, 1.4);
   (0.48, 0.77, 1.1, 1.5);

my @rows1;
my @rows2;
for my $coeff (@coeffs) {
   my @row1;
   my %occ;
   for (0 .. 31) {
      my $i = int sqrt $_ * $coeff;
      push @row1, $i;
      $occ{$i}++;
   }

   my @row2;
   for my $i (sort keys %occ) {
      my $n = $occ{$i};
      my @values = ($i) x $n;
      for my $j (1 .. ($n + 1) / 3) {
         $values[$j - 1] = $i - 1 if $i > 0;
         $values[-$j] = $i + 1 if $i < $row1[-1];
      }
      push @row2, @values;
   }

   push @rows1, \@row1;
   push @rows2, \@row2;
}

print "static const unsigned char color_level[8][32] = {\n";
print "  {" . join(", ", @$_) . "},\n" for @rows2;
print "  {" . join(", ", @$_) . "},\n" for @rows1;
print "}\n";