#!/usr/bin/perl -w
+# Books of Pumpkins, etc. Extensions to Quacks of Quedlinburg
+# SPDX-License-Identifier: GPL-3.0-or-later OR CC-BY-SA-4.0
+# Copyright 2020-2021 Ian Jackson
use strict;
-my $pumpkin = [".9 .7 0", "0 0 0"];
-my $green = [" 0 .5 0", "1 1 1"];
-my $red = ["1 0 0", "0 0 0"];
-my $blue = ["0 .4 1 ", "1 1 1"];
-my $yellow = [".9 .9 0", "0 0 0"];
-my $moth = [" 0 0 0", "1 1 1"];
-my $purple = ["1 0 .8", "0 0 0"];
-my $lotus = [" 0 .6 .6", ".5 .5 0"];
-
-my $anychip = ['0.5', '0'];
-
-sub colour ($) {
- my ($c) = @_;
- if ($c =~ m/[^ 0-9.]/) {
- return $c;
- } elsif ($c =~ m/^\s*\S+\s*$/) {
- return "$c setgray";
- } elsif ($c =~ m/./) {
- return "$c setrgbcolor";
- } else {
- return '';
- }
-}
-
-our $black = colour('0');
-
-sub chip ($$) {
- my ($cary, $pips) = @_; # put in a gsave translate
- my $o = <<END;
- newpath
- 0 0 chip 0.5 mul 0 360 arc
- gsave 1 setlinewidth $black stroke grestore
- ${\ colour($cary->[0]) } fill
-END
- if ($pips) {
- $o .= <<END;
- ${\ colour($cary->[1]) }
-END
- }
- my $spot = sub {
- my ($x,$y) = @_;
- $o .= <<END;
- newpath
- spot 0.5 sqrt mul 1.1 mul dup
- $x mul exch $y mul
- spot 0.5 mul
- 0 360 arc fill
-END
- };
-
- $spot->( 0, 0) if $pips & 1;
- $spot->(-1,-1) if $pips & 6;
- $spot->(+1,+1) if $pips & 6;
- $spot->(-1,+1) if $pips & 4;
- $spot->(+1,-1) if $pips & 4;
-
- $o;
-}
+BEGIN { unshift @INC, '.'; }
+use Quacks;
sub veepsspot ($) {
my ($chip) = @_;
END
}
-sub ruby () { # put in gsave translate
- <<END;
- newpath
- rubysz neg 0 moveto
- 0 rubysz neg lineto
- rubysz 0 lineto
- 0 rubysz lineto
- closepath
- ${\ colour('1 0.5 0.5') } gsave fill grestore
- $black 1 setlinewidth stroke
-END
-}
-
sub exposition ($) {
my ($text) = @_;
my $fontsz = 6;
$o;
}
+sub num_players ($;$) {
+ my ($n, $plus) = @_;
+ my $o = '';
+
+ $o .= <<END;
+ gsave
+ -0.94 0.50 dc translate
+ 0.3 dup scale
+END
+
+ $o .= <<END x $n;
+ pot_image 18 0 translate
+END
+
+ $o .= <<END if defined $plus;
+ -9 -5 moveto
+ /Helvetica-Bold findfont 25 scalefont setfont
+ ($plus) show
+END
+
+ $o .= <<END;
+ grestore
+END
+ return $o;
+}
sub general_book ($$) { # put in a gsave
my ($this, $costs) = @_;
tw 0 translate
3 setlinewidth
-0.8 setgray
+0.9 setgray
newpath
0 0 dc moveto
0 1 dc lineto stroke
$o;
}
-sub green_book () {
+sub book_green () {
my $o = general_book($green, [qw(5 9 15)]);
$o .= <<END;
$o;
}
-sub red_book () {
+sub book_red () {
my $o = general_book($red, [qw(4 9 16)]);
$o .= <<END;
$o;
}
-sub blue_book () {
+sub book_blue () {
my $o = general_book($blue, [qw(4 10 18)]);
$o .= <<END;
/Times-Bold findfont 15 scalefont setfont $black
+
+gsave
+ 0.50 0.65 dc translate
+ 0.65 dup scale
+ gsave -10 0 translate ${\ chip($pumpkin,0) } grestore
+ arrow
+grestore
END
my $exchip = sub {
21 0 translate
$content
grestore
-
-gsave
- 0.50 0.65 dc translate
- 0.65 dup scale
- gsave -10 0 translate ${\ chip($pumpkin,1) } grestore
- arrow
-grestore
END
};
$o .= $exchline->(1, 2, <<END);
${\ $exchip->($moth,1) } ${\ $exslash->() }
${\ $exchip->($purple,1) } ${\ $exslash->() }
- ${\ anychip(2) }
+ ${\ $exchip->($lotus,0) } ${\ $exslash->() }
+ ${\ $exchip->($anychip,2) }
END
$o .= $exchline->(0, 4, <<END);
$o;
}
-sub lotus_book () {
+sub book_lotus () {
my $o = general_book($lotus, [8, 0]);
$o .= <<END;
gsave 0 20 translate ${\ chip($purple, 1) } grestore
27 0 translate
grestore
-
-gsave
-/Times-Roman findfont
- 32 scalefont setfont
- 0.48 0.14 dc moveto (}) show
-grestore
-
-gsave
- 0.83 0.25 dc translate
- 0.85 dup scale
- ${\ chip($anychip, 0) }
-grestore
-
-gsave
- 0.72 0.22 dc translate
- 0.50 dup scale
- $black 0 0 moveto (?+?) show
-grestore
END
$o;
}
-sub purple_book () {
+sub book_purple () {
my $o = general_book($purple, [10, 1]);
my $input = <<END;
gsave
0.83 0.25 dc translate
0.85 dup scale
- ${\ chip(['.5 .5 .5', ''], 0) }
+ ${\ chip($anychip, 0) }
grestore
gsave
$o;
}
+sub book_yellow () {
+ my $o = general_book($yellow, [qw(5 11 18)]);
+
+ $o .= <<END;
+gsave
+ 0.52 0.32 dc translate
+ 0.80 dup scale
+ -26 0 translate
+ gsave 26 0 translate ${\ chip($yellow,0) } grestore
+ gsave 46 0 translate ${\ chip($pumpkin,0) } grestore
+ 34 14 translate
+ -22.5 rotate
+ 1 -1 scale
+ ${\ arrow_any("
+ gsave
+ arrowlen 0 translate
+ -85 rotate
+ -40 0
+ 40
+ 300 0 arc
+ stroke
+ grestore
+ ") }
+grestore
+END
+
+ my $exchip = sub {
+ my ($that, $pips) = @_;
+ <<END;
+ gsave ${\ chip($that, $pips) } grestore
+END
+ };
+ my $exslash = sub {
+ <<END;
+ 8 -5 moveto (/) show
+ 20 0 translate
+END
+ };
+
+ $o .= exposition(<<END);
+Move up to 1/2/4 pumpkins
+already in your pot, to after the yellow.
+(always immediately after, only one space,
+regardless of other rules)
+END
+
+ $o;
+}
+
+sub black_common ($) {
+ my ($second) = @_;
+ my $font = <<END;
+/Helvetica-Bold findfont 5.5 scalefont setfont
+END
+ <<END;
+ gsave
+ .45 .27 dc translate
+ droplet_image
+ 3.5 -1 translate .7 dup scale
+ arrow
+ grestore
+ gsave
+ .40 .08 dc translate
+ $font
+ ($second)
+ dup stringwidth .5 mul exch .5 mul exch translate
+ dup stringwidth -1 mul exch -1 mul exch moveto show
+ .7 dup scale 7 3 translate
+ ${\ ruby() }
+ grestore
+ gsave
+ .15 .37 dc translate
+
+ 8.2 3.5 moveto
+ $font
+ (closest) show
+
+ .7 dup scale
+ gsave
+ 17 0 translate
+ 180 rotate
+ arrow
+ grestore
+ gsave
+ 35 0 translate
+ arrow
+ newpath 0 0 moveto -18 0 rlineto stroke
+ grestore
+
+ ${\ chip($pumpkin,0) }
+
+ 51 0 translate
+ ${\ chip($moth, 1) }
+ grestore
+END
+}
+
+sub book_black_pair () {
+ my $o = general_book($moth, [10, 1]);
+
+ $o .= num_players(2);
+ $o .= black_common('equal:');
+
+ $o .= exposition(<<END);
+The player with the shortest distance
+between a black chip and a pumpkin
+gets to move their droplet.
+
+If tied, both players get a ruby.
+END
+
+ $o;
+}
+
+sub book_black_more () {
+ my $o = general_book($moth, [10, 1]);
+
+ $o .= num_players(3,'+');
+ $o .= black_common('2nd:');
+
+ $o .= exposition(<<END);
+
+The player(s) with the shortest distance
+between a black chip and a pumpkin
+get to move their droplet.
+If only one player won a droplet, the
+player(s) with the next-shortest distance
+get a ruby.
+END
+
+ $o;
+}
+ps_start('7 30 translate');
+
+sub def_image ($$) {
+ my ($ncomps, $name) = @_;
+
+ my $ext = $ncomps == 1 ? 'pgm' : $ncomps == 3 ? 'ppm' : die;
+ my $oper = $ncomps == 1 ? 'image' :
+ $ncomps == 3 ? 'false 3 colorimage' : die;
+ my $magic = $ncomps == 1 ? 'P2' : $ncomps == 3 ? 'P3' : die;
+
+ open B, "$name.$ext" or die $!;
+ <B> eq "$magic\n" or die "$name.$ext expected $magic";
+ local $/ = undef;
+ my @d = split ' ', <B>;
+ close B;
+
+ my $w = shift @d;
+ my $h = shift @d;
+ my $maxval = shift @d;
+ die unless $maxval eq 255;
+
+ my $sz = $w/17.0;
+ my $hsz = $sz/2;
+
+ $ps_framing .= <<END . '{<';
+/${name}_image {
+ $w $h 8
+ [ -$sz 0 0 -$sz $w 2 div $h 2 div ]
+END
+ for (my $i=0; $i< $w*$h*$ncomps; $i++) {
+ $ps_framing .= sprintf "%02x", shift @d;
+ }
+ $ps_framing .= <<END;
+>} $oper
+} def
+END
+}
+
sub tile {
- my $index = scalar @_;
+ my @tiles;
+ my $index = 1;
+
+ foreach my $spec (@_) {
+ my @datas;
+ foreach my $stem (split m{/}, $spec) {
+ my $func = $stem;
+ $func =~ y/-/_/;
+ $func = ${*::}{"book_$func"} // die "$func ?";
+ my $data = $func->();
+ $data .= <<END;
+ /Courier-Bold findfont 6 scalefont setfont
+ -0.98 0.94 dc moveto
+ ($index) show
+END
+ open F, ">book-$stem.ps" or die $!;
+ print F $ps_framing, $data, "\nshowpage\n" or die $!;
+ close F or die $!;
+ push @datas, $data;
+ }
+ foreach my $dd (@datas) {
+ push @tiles, $dd;
+ }
+ $index++;
+ }
+
my $pos = 0;
my $o = '';
my $showpage = sub {
$o .= <<END;
showpage
+$page_pre
END
};
- while (my $d = pop @_) {
+
+ while (my $d = pop @tiles) {
if ($pos >= 5) {
$pos -= 5;
$showpage->();
}
$o .= "\n".$d."\n";
$o .= <<END;
-
- /Courier-Bold findfont 6 scalefont setfont
- -0.98 0.94 dc moveto
- ($index) show
-
grestore
END
$pos++;
- $index--;
}
$showpage->();
$o;
}
-print <<END or die $!;
-%!
-
-72 25.4 div dup scale
-%210 0 translate
-%90 rotate
-7 10 translate
-
-/tw 57.5 def
-/th 73 def
-/bdiag 5 def
-/thirdlineh 0.45 def
-/costcirch 0.3 def
-/chip 15 def
-/spot 3.5 def
-/arrowlen 6 def
-/arrowhead 3 def
-
-/costtexth 0.215 def
-/costtextsz 12 def
-/costtextdx -0.03 def
-/costfont /Heletica-BoldOblique findfont costtextsz scalefont def
-
-/rubysz 4 def
-
-% diagonal conversion
-/dc { % xprop yprop
- dup th mul % xprop yprop y
- 3 1 roll % y xprop yprop
- bdiag mul neg % y xprop x-margin-at-this-height
- tw add % y xprop x-width-at-this-height
- exch mul % y x-width-at-this-height xprop
- exch % x y
-} def
+def_image(1, "bag");
+def_image(1, "pot");
+def_image(3, "droplet");
-/arrow {
- $black 1 setlinewidth
- newpath
- 0 0 moveto arrowlen 0 rlineto
- arrowhead dup neg exch rmoveto
- arrowhead dup neg rlineto
- arrowhead neg dup rlineto
- stroke
-} def
+print $ps_framing or die $!;
-END
+print "gsave\n" or die $!;
+
+print tile(@ARGV) or die $! if 1;
-print tile(
- red_book(),
- green_book(),
- purple_book(),
- blue_book(),
- lotus_book(),
- ) or die $! if 1;