server/ext/map-random.ext

#! perl # mandatory

use Coro::AIO;

cf::map->register (qr{^\?random/([0-9a-f]{32})});

sub init {
   my ($self) = @_;

   $self->{random_id} = $1;

   if (0 < Coro::AIO::aio_load "$cf::RANDOMDIR/$self->{random_id}.meta", my $data) {
      $self->{random} = cf::decode_json $data;
      $self->{random}{custom} ||= "$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}";
   } else {
      warn "unable to read meta file for $self->{random_id}\n";
      return 0;
   }

   1
}

sub thawer_merge {
   # we have to keep some variables in memory intact
   local $_[0]{random_id};
   local $_[0]{random};

   $_[0]->SUPER::thawer_merge ($_[1]);
}

sub visible_name {
   my ($self) = @_;

   my $rmp = $self->{random};
   "random map at $rmp->{custom}, level $rmp->{dungeon_level}"
}

sub save_path {
   my ($self) = @_;

   sprintf "%s/%s.map", $cf::RANDOMDIR, $self->{random_id}
}

sub uniq_path {
   undef
}

sub load_header_orig {
   my ($self) = @_;

   return unless $self->{random};

   $self->generate_random_map ($self->{random});
   $self->activate;

   1
}

sub clean_random_maps {
   my $files = Coro::AIO::aio_readdir $cf::RANDOMDIR
      or return;

   my $META_TIMEOUT = $cf::CFG{map_random_meta_timeout} || 86400 * 7;

   for my $file (@$files) {
      next unless $file =~ /\.meta$/;

      Coro::AIO::aio_stat "$cf::RANDOMDIR/$file"
         and next;

      my $age = $cf::NOW - (stat _)[8];

      if ($age > $META_TIMEOUT) {
         warn "resetting random meta data for $file";
         IO::AIO::aio_unlink "$cf::RANDOMDIR/$file";
      }
   }
}

# called by the random map generator
sub find_style_;
sub find_style_($$) {
   my ($path, $difficulty) = @_;

   my $map;

   $map = cf::map::find $path
      unless aio_stat "$cf::MAPDIR/$path.map";

   unless ($map) {
      # search files and/or dirs
      if (my ($dirs, $nondirs) = aio_scandir "$cf::MAPDIR/$path/", 1) {
         my @entries = sort grep s/\.map$//, @$nondirs;

         if ($difficulty < 0) {
            # pick a fully random map, but only a map, do not recurse
            $map = cf::map::find "$path/$entries[cf::rmg_rndm scalar @entries]"
               if @entries;
         } else {
            # pick a map with nearest difficulty value ("mapname_<difficulty>.map")
            @entries = sort @$dirs
               unless @entries;

            my $min_diff = 1e99;

            for my $name (@entries) {
               if ($name =~ /_(\d+)$/) {
                  my $diff = abs $difficulty - $1 + 0.5; # prefer the more difficult version
                  ($map, $min_diff) = ($name, $diff) if $diff < $min_diff;
               }
            }

            unless ($map) {
               # no map with given pattern found, choose a random map
               $map = $entries[cf::rmg_rndm scalar @entries];
            }

            $map = find_style_ "$path/$map", $difficulty
               if $map;
         }
      }
   }

   $map
}

sub find_style($$$) {
   my ($dir, $name, $difficulty) = @_;
   
   cf::cede_to_tick;

   my $map = find_style_ $name ? "$dir/$name" : $dir, $difficulty;

   if ($map) {
      $map->load;
      $map->deactivate;
   }

   warn "return $dir,$name,$difficulty => $map\n" if $difficulty >= 0;#d#
   $map
}

# clean up old temp maps regularly
our $CLEAN_RANDOM_MAPS = cf::periodic 3600, Coro::unblock_sub {
   clean_random_maps;
};

# map generator stresstest, NEVER enable under normal circumstances
if (0) {
   cf::async {
      my $seed = 0;
      while () {
         my $map = cf::map::new;
         $map->generate_random_map ({
            region => "scorn",
            random_seed => $seed++,
            xsize => (int rand 90) + 3,
            ysize => (int rand 90) + 3,
         });
#         warn sprintf "%d: %d %d\n", $seed, $map->width, $map->height;#d#
         $map->destroy;
      }
   };
}

# prefetch test, load some ocean-maps
if (0) {
   cf::async {
      # 0.58
      Coro::Timer::sleep 2;
      for my $x (200..219) {
         for my $y (200..219) {
            (cf::map::find "/world/world_$x\_$y")->load;
         }
      }
   };
}

1

Revision:	1.27
Committed:	Sun May 4 19:50:13 2008 UTC (18 years, 5 months ago) by root
Branch:	MAIN
Changes since 1.26:	+2 -4 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.17	#! perl # mandatory
2	root	1.1
3	root	1.26	use Coro::AIO;
4
5	root	1.5	cf::map->register (qr{^\?random/([0-9a-f]{32})});
6	root	1.1
7			sub init {
8			my ($self) = @_;
9
10	root	1.5	$self->{random_id} = $1;
11
12	root	1.14	if (0 < Coro::AIO::aio_load "$cf::RANDOMDIR/$self->{random_id}.meta", my $data) {
13	root	1.19	$self->{random} = cf::decode_json $data;
14	root	1.3	$self->{random}{custom} \|\|= "$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}";
15	root	1.7	} else {
16			warn "unable to read meta file for $self->{random_id}\n";
17			return 0;
18	root	1.3	}
19	root	1.5
20			1
21	root	1.1	}
22
23	root	1.6	sub thawer_merge {
24			# we have to keep some variables in memory intact
25			local $_[0]{random_id};
26			local $_[0]{random};
27
28			$_[0]->SUPER::thawer_merge ($_[1]);
29			}
30
31	root	1.1	sub visible_name {
32			my ($self) = @_;
33
34	root	1.2	my $rmp = $self->{random};
35	root	1.4	"random map at $rmp->{custom}, level $rmp->{dungeon_level}"
36	root	1.1	}
37
38			sub save_path {
39			my ($self) = @_;
40
41	root	1.14	sprintf "%s/%s.map", $cf::RANDOMDIR, $self->{random_id}
42	root	1.1	}
43
44			sub uniq_path {
45			undef
46			}
47
48	root	1.8	sub load_header_orig {
49	root	1.1	my ($self) = @_;
50
51	root	1.5	return unless $self->{random};
52
53			$self->generate_random_map ($self->{random});
54	root	1.15	$self->activate;
55	root	1.5
56			1
57	root	1.1	}
58
59	root	1.3	sub clean_random_maps {
60	root	1.14	my $files = Coro::AIO::aio_readdir $cf::RANDOMDIR
61	root	1.10	or return;
62
63			my $META_TIMEOUT = $cf::CFG{map_random_meta_timeout} \|\| 86400 * 7;
64
65			for my $file (@$files) {
66	root	1.16	next unless $file =~ /\.meta$/;
67	root	1.10
68	root	1.14	Coro::AIO::aio_stat "$cf::RANDOMDIR/$file"
69	root	1.10	and next;
70
71			my $age = $cf::NOW - (stat _)[8];
72
73	root	1.16	if ($age > $META_TIMEOUT) {
74			warn "resetting random meta data for $file";
75			IO::AIO::aio_unlink "$cf::RANDOMDIR/$file";
76	root	1.3	}
77	root	1.10	}
78	root	1.3	}
79
80	root	1.26	# called by the random map generator
81			sub find_style_;
82			sub find_style_($$) {
83			my ($path, $difficulty) = @_;
84
85			my $map;
86
87			$map = cf::map::find $path
88	root	1.27	unless aio_stat "$cf::MAPDIR/$path.map";
89	root	1.26
90			unless ($map) {
91			# search files and/or dirs
92	root	1.27	if (my ($dirs, $nondirs) = aio_scandir "$cf::MAPDIR/$path/", 1) {
93	root	1.26	my @entries = sort grep s/\.map$//, @$nondirs;
94
95			if ($difficulty < 0) {
96			# pick a fully random map, but only a map, do not recurse
97			$map = cf::map::find "$path/$entries[cf::rmg_rndm scalar @entries]"
98			if @entries;
99			} else {
100			# pick a map with nearest difficulty value ("mapname_<difficulty>.map")
101			@entries = sort @$dirs
102			unless @entries;
103
104			my $min_diff = 1e99;
105
106			for my $name (@entries) {
107			if ($name =~ /_(\d+)$/) {
108			my $diff = abs $difficulty - $1 + 0.5; # prefer the more difficult version
109			($map, $min_diff) = ($name, $diff) if $diff < $min_diff;
110			}
111			}
112
113			unless ($map) {
114			# no map with given pattern found, choose a random map
115			$map = $entries[cf::rmg_rndm scalar @entries];
116			}
117
118			$map = find_style_ "$path/$map", $difficulty
119			if $map;
120			}
121			}
122			}
123
124			$map
125			}
126
127			sub find_style($$$) {
128			my ($dir, $name, $difficulty) = @_;
129
130			cf::cede_to_tick;
131
132			my $map = find_style_ $name ? "$dir/$name" : $dir, $difficulty;
133
134			if ($map) {
135			$map->load;
136			$map->deactivate;
137			}
138
139			warn "return $dir,$name,$difficulty => $map\n" if $difficulty >= 0;#d#
140			$map
141			}
142
143	root	1.3	# clean up old temp maps regularly
144	root	1.18	our $CLEAN_RANDOM_MAPS = cf::periodic 3600, Coro::unblock_sub {
145			clean_random_maps;
146			};
147	root	1.3
148	root	1.20	# map generator stresstest, NEVER enable under normal circumstances
149	root	1.24	if (0) {
150	root	1.11	cf::async {
151			my $seed = 0;
152			while () {
153			my $map = cf::map::new;
154			$map->generate_random_map ({
155			region => "scorn",
156			random_seed => $seed++,
157	root	1.20	xsize => (int rand 90) + 3,
158			ysize => (int rand 90) + 3,
159	root	1.11	});
160	root	1.22	# warn sprintf "%d: %d %d\n", $seed, $map->width, $map->height;#d#
161	root	1.11	$map->destroy;
162			}
163			};
164			}
165
166	root	1.25	# prefetch test, load some ocean-maps
167			if (0) {
168			cf::async {
169			# 0.58
170			Coro::Timer::sleep 2;
171			for my $x (200..219) {
172			for my $y (200..219) {
173			(cf::map::find "/world/world_$x\_$y")->load;
174			}
175			}
176			};
177			}
178
179	root	1.1	1
180