plomlompom.com Git - plomrogue/blob - roguelike-server

   1 #!/usr/bin/python3
   2
   3 # This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
   4 # or any later version. For details on its copyright, license, and warranties,
   5 # see the file NOTICE in the root directory of the PlomRogue source package.
   6
   7
   8 import argparse
   9 import errno
  10 import os
  11 import shlex
  12 import shutil
  13 import time
  14 import ctypes
  15
  16
  17 class RandomnessIO:
  18     """"Interface to libplomrogue's pseudo-randomness generator."""
  19
  20     def set_seed(self, seed):
  21         libpr.seed_rrand(1, seed)
  22
  23     def get_seed(self):
  24         return libpr.seed_rrand(0, 0)
  25
  26     def next(self):
  27         return libpr.rrand()
  28
  29     seed = property(get_seed, set_seed)
  30
  31
  32 def prep_library():
  33     """Prepare ctypes library at ./libplomrogue.so"""
  34     libpath = ("./libplomrogue.so")
  35     if not os.access(libpath, os.F_OK):
  36         raise SystemExit("No library " + libpath + ", run ./redo first?")
  37     libpr = ctypes.cdll.LoadLibrary(libpath)
  38     libpr.seed_rrand.restype = ctypes.c_uint32
  39     return libpr
  40
  41
  42 def c_pointer_to_bytearray(ba):
  43     """Return C char * pointer to ba."""
  44     type = ctypes.c_char * len(ba)
  45     return type.from_buffer(ba)
  46
  47
  48 def strong_write(file, string):
  49     """Apply write(string), then flush()."""
  50     file.write(string)
  51     file.flush()
  52
  53
  54 def setup_server_io():
  55     """Fill IO files DB with proper file( path)s. Write process IO test string.
  56
  57     Ensure IO files directory at server/. Remove any old input file if found.
  58     Set up new input file for reading, and new output file for writing. Start
  59     output file with process hash line of format PID + " " + floated UNIX time
  60     (io_db["teststring"]). Raise SystemExit if file is found at path of either
  61     record or save file plus io_db["tmp_suffix"].
  62     """
  63     def detect_atomic_leftover(path, tmp_suffix):
  64         path_tmp = path + tmp_suffix
  65         msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
  66               "aborted previous attempt to write '" + path + "'. Aborting " \
  67               "until matter is resolved by removing it from its current path."
  68         if os.access(path_tmp, os.F_OK):
  69             raise SystemExit(msg)
  70     io_db["teststring"] = str(os.getpid()) + " " + str(time.time())
  71     io_db["save_wait"] = 0
  72     io_db["verbose"] = False
  73     io_db["record_chunk"] = ""
  74     os.makedirs(io_db["path_server"], exist_ok=True)
  75     io_db["file_out"] = open(io_db["path_out"], "w")
  76     strong_write(io_db["file_out"], io_db["teststring"] + "\n")
  77     if os.access(io_db["path_in"], os.F_OK):
  78         os.remove(io_db["path_in"])
  79     io_db["file_in"] = open(io_db["path_in"], "w")
  80     io_db["file_in"].close()
  81     io_db["file_in"] = open(io_db["path_in"], "r")
  82     detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
  83     detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
  84
  85
  86 def cleanup_server_io():
  87     """Close and (if io_db["kicked_by_rival"] false) remove files in io_db."""
  88     def helper(file_key, path_key):
  89         if file_key in io_db:
  90             io_db[file_key].close()
  91         if not io_db["kicked_by_rival"] \
  92            and os.access(io_db[path_key], os.F_OK):
  93             os.remove(io_db[path_key])
  94     helper("file_in", "path_in")
  95     helper("file_out", "path_out")
  96     helper("file_worldstate", "path_worldstate")
  97     if "file_record" in io_db:
  98         io_db["file_record"].close()
  99
 100
 101 def obey(command, prefix, replay=False, do_record=False):
 102     """Call function from commands_db mapped to command's first token.
 103
 104     Tokenize command string with shlex.split(comments=True). If replay is set,
 105     a non-meta command from the commands_db merely triggers obey() on the next
 106     command from the records file. If not, non-meta commands set
 107     io_db["worldstate_updateable"] to world_db["WORLD_ACTIVE"], and, if
 108     do_record is set, are recorded to io_db["record_chunk"], and save_world()
 109     is called (and io_db["record_chunk"] written) if 15 seconds have passed
 110     since the last time it was called. The prefix string is inserted into the
 111     server's input message between its beginning 'input ' and ':'. All activity
 112     is preceded by a server_test() call.
 113     """
 114     server_test()
 115     if io_db["verbose"]:
 116         print("input " + prefix + ": " + command)
 117     try:
 118         tokens = shlex.split(command, comments=True)
 119     except ValueError as err:
 120         print("Can't tokenize command string: " + str(err) + ".")
 121         return
 122     if len(tokens) > 0 and tokens[0] in commands_db \
 123        and len(tokens) == commands_db[tokens[0]][0] + 1:
 124         if commands_db[tokens[0]][1]:
 125             commands_db[tokens[0]][2](*tokens[1:])
 126         elif replay:
 127             print("Due to replay mode, reading command as 'go on in record'.")
 128             line = io_db["file_record"].readline()
 129             if len(line) > 0:
 130                 obey(line.rstrip(), io_db["file_record"].prefix
 131                      + str(io_db["file_record"].line_n))
 132                 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 133             else:
 134                 print("Reached end of record file.")
 135         else:
 136             commands_db[tokens[0]][2](*tokens[1:])
 137             if do_record:
 138                 io_db["record_chunk"] += command + "\n"
 139                 if time.time() > io_db["save_wait"] + 15:
 140                     atomic_write(io_db["path_record"], io_db["record_chunk"],
 141                                  do_append=True)
 142                     save_world()
 143                     io_db["record_chunk"] = ""
 144                     io_db["save_wait"] = time.time()
 145             io_db["worldstate_updateable"] = world_db["WORLD_ACTIVE"]
 146     elif 0 != len(tokens):
 147         print("Invalid command/argument, or bad number of tokens.")
 148
 149
 150 def atomic_write(path, text, do_append=False, delete=True):
 151     """Atomic write of text to file at path, appended if do_append is set."""
 152     path_tmp = path + io_db["tmp_suffix"]
 153     mode = "w"
 154     if do_append:
 155         mode = "a"
 156         if os.access(path, os.F_OK):
 157             shutil.copyfile(path, path_tmp)
 158     file = open(path_tmp, mode)
 159     strong_write(file, text)
 160     file.close()
 161     if delete and os.access(path, os.F_OK):
 162         os.remove(path)
 163     os.rename(path_tmp, path)
 164
 165
 166 def save_world():
 167     """Save all commands needed to reconstruct current world state."""
 168
 169     def quote(string):
 170         string = string.replace("\u005C", '\u005C\u005C')
 171         return '"' + string.replace('"', '\u005C"') + '"'
 172
 173     def mapsetter(key):
 174         def helper(id):
 175             string = ""
 176             if world_db["Things"][id][key]:
 177                 map = world_db["Things"][id][key]
 178                 length = world_db["MAP_LENGTH"]
 179                 for i in range(length):
 180                     line = map[i * length:(i * length) + length].decode()
 181                     string = string + key + " " + str(i) + " " + quote(line) \
 182                         + "\n"
 183             return string
 184         return helper
 185
 186     def memthing(id):
 187         string = ""
 188         for memthing in world_db["Things"][id]["T_MEMTHING"]:
 189             string = string + "T_MEMTHING " + str(memthing[0]) + " " + \
 190                 str(memthing[1]) + " " + str(memthing[2]) + "\n"
 191         return string
 192
 193     def helper(category, id_string, special_keys={}):
 194         string = ""
 195         for id in sorted(world_db[category].keys()):
 196             string = string + id_string + " " + str(id) + "\n"
 197             for key in sorted(world_db[category][id].keys()):
 198                 if not key in special_keys:
 199                     x = world_db[category][id][key]
 200                     argument = quote(x) if str == type(x) else str(x)
 201                     string = string + key + " " + argument + "\n"
 202                 elif special_keys[key]:
 203                     string = string + special_keys[key](id)
 204         return string
 205
 206     string = ""
 207     for key in sorted(world_db.keys()):
 208         if (not isinstance(world_db[key], dict)) and key != "MAP" and \
 209            key != "WORLD_ACTIVE" and key != "SEED_MAP":
 210             string = string + key + " " + str(world_db[key]) + "\n"
 211     string = string + "SEED_MAP " + str(world_db["SEED_MAP"]) + "\n"
 212     string = string + helper("ThingActions", "TA_ID")
 213     string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
 214     for id in sorted(world_db["ThingTypes"].keys()):
 215         string = string + "TT_ID " + str(id) + "\n" + "TT_CORPSE_ID " + \
 216             str(world_db["ThingTypes"][id]["TT_CORPSE_ID"]) + "\n"
 217     string = string + helper("Things", "T_ID",
 218                              {"T_CARRIES": False, "carried": False,
 219                               "T_MEMMAP": mapsetter("T_MEMMAP"),
 220                               "T_MEMTHING": memthing, "fovmap": False,
 221                               "T_MEMDEPTHMAP": mapsetter("T_MEMDEPTHMAP")})
 222     for id in sorted(world_db["Things"].keys()):
 223         if [] != world_db["Things"][id]["T_CARRIES"]:
 224             string = string + "T_ID " + str(id) + "\n"
 225             for carried in sorted(world_db["Things"][id]["T_CARRIES"]):
 226                 string = string + "T_CARRIES " + str(carried) + "\n"
 227     string = string + "SEED_RANDOMNESS " + str(rand.seed) + "\n" + \
 228         "WORLD_ACTIVE " + str(world_db["WORLD_ACTIVE"])
 229     atomic_write(io_db["path_save"], string)
 230
 231
 232 def obey_lines_in_file(path, name, do_record=False):
 233     """Call obey() on each line of path's file, use name in input prefix."""
 234     file = open(path, "r")
 235     line_n = 1
 236     for line in file.readlines():
 237         obey(line.rstrip(), name + "file line " + str(line_n),
 238              do_record=do_record)
 239         line_n = line_n + 1
 240     file.close()
 241
 242
 243 def parse_command_line_arguments():
 244     """Return settings values read from command line arguments."""
 245     parser = argparse.ArgumentParser()
 246     parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
 247                         action='store')
 248     parser.add_argument('-l', nargs="?", const="save", dest='savefile',
 249                         action="store")
 250     parser.add_argument('-v', dest='verbose', action='store_true')
 251     opts, unknown = parser.parse_known_args()
 252     return opts
 253
 254
 255 def server_test():
 256     """Ensure valid server out file belonging to current process.
 257
 258     This is done by comparing io_db["teststring"] to what's found at the start
 259     of the current file at io_db["path_out"]. On failure, set
 260     io_db["kicked_by_rival"] and raise SystemExit.
 261     """
 262     if not os.access(io_db["path_out"], os.F_OK):
 263         raise SystemExit("Server output file has disappeared.")
 264     file = open(io_db["path_out"], "r")
 265     test = file.readline().rstrip("\n")
 266     file.close()
 267     if test != io_db["teststring"]:
 268         io_db["kicked_by_rival"] = True
 269         msg = "Server test string in server output file does not match. This" \
 270               " indicates that the current server process has been " \
 271               "superseded by another one."
 272         raise SystemExit(msg)
 273
 274
 275 def read_command():
 276     """Return next newline-delimited command from server in file.
 277
 278     Keep building return string until a newline is encountered. Pause between
 279     unsuccessful reads, and after too much waiting, run server_test().
 280     """
 281     wait_on_fail = 0.03333
 282     max_wait = 5
 283     now = time.time()
 284     command = ""
 285     while True:
 286         add = io_db["file_in"].readline()
 287         if len(add) > 0:
 288             command = command + add
 289             if len(command) > 0 and "\n" == command[-1]:
 290                 command = command[:-1]
 291                 break
 292         else:
 293             time.sleep(wait_on_fail)
 294             if now + max_wait < time.time():
 295                 server_test()
 296                 now = time.time()
 297     return command
 298
 299
 300 def try_worldstate_update():
 301     """Write worldstate file if io_db["worldstate_updateable"] is set."""
 302     if io_db["worldstate_updateable"]:
 303
 304         def draw_visible_Things(map, run):
 305             for id in world_db["Things"]:
 306                 type = world_db["Things"][id]["T_TYPE"]
 307                 consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 308                 alive = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]
 309                 if (0 == run and not consumable and not alive) \
 310                    or (1 == run and consumable and not alive) \
 311                    or (2 == run and alive):
 312                     y = world_db["Things"][id]["T_POSY"]
 313                     x = world_db["Things"][id]["T_POSX"]
 314                     fovflag = world_db["Things"][0]["fovmap"][(y * length) + x]
 315                     if 'v' == chr(fovflag):
 316                         c = world_db["ThingTypes"][type]["TT_SYMBOL"]
 317                         map[(y * length) + x] = ord(c)
 318
 319         def write_map(string, map):
 320             for i in range(length):
 321                 line = map[i * length:(i * length) + length].decode()
 322                 string = string + line + "\n"
 323             return string
 324
 325         inventory = ""
 326         if [] == world_db["Things"][0]["T_CARRIES"]:
 327             inventory = "(none)\n"
 328         else:
 329             for id in world_db["Things"][0]["T_CARRIES"]:
 330                 type_id = world_db["Things"][id]["T_TYPE"]
 331                 name = world_db["ThingTypes"][type_id]["TT_NAME"]
 332                 inventory = inventory + name + "\n"
 333         string = str(world_db["TURN"]) + "\n" + \
 334             str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
 335             str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
 336             inventory + "%\n" + \
 337             str(world_db["Things"][0]["T_POSY"]) + "\n" + \
 338             str(world_db["Things"][0]["T_POSX"]) + "\n" + \
 339             str(world_db["MAP_LENGTH"]) + "\n"
 340         length = world_db["MAP_LENGTH"]
 341         fov = bytearray(b' ' * (length ** 2))
 342         for pos in range(length ** 2):
 343             if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
 344                 fov[pos] = world_db["MAP"][pos]
 345         for i in range(3):
 346             draw_visible_Things(fov, i)
 347         string = write_map(string, fov)
 348         mem = world_db["Things"][0]["T_MEMMAP"][:]
 349         for i in range(2):
 350             for mt in world_db["Things"][0]["T_MEMTHING"]:
 351                 consumable = world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]
 352                 if (i == 0 and not consumable) or (i == 1 and consumable):
 353                     c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
 354                     mem[(mt[1] * length) + mt[2]] = ord(c)
 355         string = write_map(string, mem)
 356         atomic_write(io_db["path_worldstate"], string, delete=False)
 357         strong_write(io_db["file_out"], "WORLD_UPDATED\n")
 358         io_db["worldstate_updateable"] = False
 359
 360
 361 def replay_game():
 362     """Replay game from record file.
 363
 364     Use opts.replay as breakpoint turn to which to replay automatically before
 365     switching to manual input by non-meta commands in server input file
 366     triggering further reads of record file. Ensure opts.replay is at least 1.
 367     Run try_worldstate_update() before each interactive obey()/read_command().
 368     """
 369     if opts.replay < 1:
 370         opts.replay = 1
 371     print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
 372           " (if so late a turn is to be found).")
 373     if not os.access(io_db["path_record"], os.F_OK):
 374         raise SystemExit("No record file found to replay.")
 375     io_db["file_record"] = open(io_db["path_record"], "r")
 376     io_db["file_record"].prefix = "record file line "
 377     io_db["file_record"].line_n = 1
 378     while world_db["TURN"] < opts.replay:
 379         line = io_db["file_record"].readline()
 380         if "" == line:
 381             break
 382         obey(line.rstrip(), io_db["file_record"].prefix
 383              + str(io_db["file_record"].line_n))
 384         io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 385     while True:
 386         try_worldstate_update()
 387         obey(read_command(), "in file", replay=True)
 388
 389
 390 def play_game():
 391     """Play game by server input file commands. Before, load save file found.
 392
 393     If no save file is found, a new world is generated from the commands in the
 394     world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
 395     command and all that follow via the server input file. Run
 396     try_worldstate_update() before each interactive obey()/read_command().
 397     """
 398     if os.access(io_db["path_save"], os.F_OK):
 399         obey_lines_in_file(io_db["path_save"], "save")
 400     else:
 401         if not os.access(io_db["path_worldconf"], os.F_OK):
 402             msg = "No world config file from which to start a new world."
 403             raise SystemExit(msg)
 404         obey_lines_in_file(io_db["path_worldconf"], "world config ",
 405                            do_record=True)
 406         obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
 407     while True:
 408         try_worldstate_update()
 409         obey(read_command(), "in file", do_record=True)
 410
 411
 412 def remake_map():
 413     """(Re-)make island map.
 414
 415     Let "~" represent water, "." land, "X" trees: Build island shape randomly,
 416     start with one land cell in the middle, then go into cycle of repeatedly
 417     selecting a random sea cell and transforming it into land if it is neighbor
 418     to land. The cycle ends when a land cell is due to be created at the map's
 419     border. Then put some trees on the map (TODO: more precise algorithm desc).
 420     """
 421     def is_neighbor(coordinates, type):
 422         y = coordinates[0]
 423         x = coordinates[1]
 424         length = world_db["MAP_LENGTH"]
 425         ind = y % 2
 426         diag_west = x + (ind > 0)
 427         diag_east = x + (ind < (length - 1))
 428         pos = (y * length) + x
 429         if (y > 0 and diag_east
 430             and type == chr(world_db["MAP"][pos - length + ind])) \
 431            or (x < (length - 1)
 432                and type == chr(world_db["MAP"][pos + 1])) \
 433            or (y < (length - 1) and diag_east
 434                and type == chr(world_db["MAP"][pos + length + ind])) \
 435            or (y > 0 and diag_west
 436                and type == chr(world_db["MAP"][pos - length - (not ind)])) \
 437            or (x > 0
 438                and type == chr(world_db["MAP"][pos - 1])) \
 439            or (y < (length - 1) and diag_west
 440                and type == chr(world_db["MAP"][pos + length - (not ind)])):
 441             return True
 442         return False
 443     store_seed = rand.seed
 444     rand.seed = world_db["SEED_MAP"]
 445     world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
 446     length = world_db["MAP_LENGTH"]
 447     add_half_width = (not (length % 2)) * int(length / 2)
 448     world_db["MAP"][int((length ** 2) / 2) + add_half_width] = ord(".")
 449     while (1):
 450         y = rand.next() % length
 451         x = rand.next() % length
 452         pos = (y * length) + x
 453         if "~" == chr(world_db["MAP"][pos]) and is_neighbor((y, x), "."):
 454             if y == 0 or y == (length - 1) or x == 0 or x == (length - 1):
 455                 break
 456             world_db["MAP"][pos] = ord(".")
 457     n_trees = int((length ** 2) / 16)
 458     i_trees = 0
 459     while (i_trees <= n_trees):
 460         single_allowed = rand.next() % 32
 461         y = rand.next() % length
 462         x = rand.next() % length
 463         pos = (y * length) + x
 464         if "." == chr(world_db["MAP"][pos]) \
 465                 and ((not single_allowed) or is_neighbor((y, x), "X")):
 466             world_db["MAP"][pos] = ord("X")
 467             i_trees += 1
 468     rand.seed = store_seed
 469     # This all-too-precise replica of the original C code misses iter_limit().
 470
 471
 472 def update_map_memory(t, age_map=True):
 473     """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
 474     def age_some_memdepthmap_on_nonfov_cells():
 475         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 476         # ord_v = ord("v")
 477         # ord_0 = ord("0")
 478         # ord_9 = ord("9")
 479         # for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 480         #             if not ord_v == t["fovmap"][pos]
 481         #             if ord_0 <= t["T_MEMDEPTHMAP"][pos]
 482         #             if ord_9 > t["T_MEMDEPTHMAP"][pos]
 483         #             if not rand.next() % (2 **
 484         #                                   (t["T_MEMDEPTHMAP"][pos] - 48))]:
 485         #     t["T_MEMDEPTHMAP"][pos] += 1
 486         memdepthmap = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 487         fovmap = c_pointer_to_bytearray(t["fovmap"])
 488         libpr.age_some_memdepthmap_on_nonfov_cells(memdepthmap, fovmap)
 489     if not t["T_MEMMAP"]:
 490         t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 491     if not t["T_MEMDEPTHMAP"]:
 492         t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 493     ord_v = ord("v")
 494     ord_0 = ord("0")
 495     ord_space = ord(" ")
 496     for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 497                 if ord_v == t["fovmap"][pos]]:
 498         t["T_MEMDEPTHMAP"][pos] = ord_0
 499         if ord_space == t["T_MEMMAP"][pos]:
 500             t["T_MEMMAP"][pos] = world_db["MAP"][pos]
 501     if age_map:
 502         age_some_memdepthmap_on_nonfov_cells()
 503     for mt in [mt for mt in t["T_MEMTHING"]
 504                if ord_v == t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
 505                                        + mt[2]]]:
 506         t["T_MEMTHING"].remove(mt)
 507     for id in [id for id in world_db["Things"]
 508                if not world_db["Things"][id]["carried"]]:
 509         type = world_db["Things"][id]["T_TYPE"]
 510         if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
 511             y = world_db["Things"][id]["T_POSY"]
 512             x = world_db["Things"][id]["T_POSX"]
 513             if ord_v == t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]:
 514                 t["T_MEMTHING"].append((type, y, x))
 515
 516
 517 def set_world_inactive():
 518     """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
 519     server_test()
 520     if os.access(io_db["path_worldstate"], os.F_OK):
 521         os.remove(io_db["path_worldstate"])
 522     world_db["WORLD_ACTIVE"] = 0
 523
 524
 525 def integer_test(val_string, min, max=None):
 526     """Return val_string if integer >= min & (if max set) <= max, else None."""
 527     try:
 528         val = int(val_string)
 529         if val < min or (max is not None and val > max):
 530             raise ValueError
 531         return val
 532     except ValueError:
 533         msg = "Ignoring: Please use integer >= " + str(min)
 534         if max is not None:
 535             msg += " and <= " + str(max)
 536         msg += "."
 537         print(msg)
 538         return None
 539
 540
 541 def setter(category, key, min, max=None):
 542     """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
 543     if category is None:
 544         def f(val_string):
 545             val = integer_test(val_string, min, max)
 546             if None != val:
 547                 world_db[key] = val
 548     else:
 549         if category == "Thing":
 550             id_store = command_tid
 551             decorator = test_Thing_id
 552         elif category == "ThingType":
 553             id_store = command_ttid
 554             decorator = test_ThingType_id
 555         elif category == "ThingAction":
 556             id_store = command_taid
 557             decorator = test_ThingAction_id
 558
 559         @decorator
 560         def f(val_string):
 561             val = integer_test(val_string, min, max)
 562             if None != val:
 563                 world_db[category + "s"][id_store.id][key] = val
 564     return f
 565
 566
 567 def build_fov_map(t):
 568     """Build Thing's FOV map."""
 569     t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
 570     fovmap = c_pointer_to_bytearray(t["fovmap"])
 571     map = c_pointer_to_bytearray(world_db["MAP"])
 572     if libpr.build_fov_map(t["T_POSY"], t["T_POSX"], fovmap, map):
 573         raise RuntimeError("Malloc error in build_fov_Map().")
 574
 575
 576 def decrement_lifepoints(t):
 577     """Decrement t's lifepoints by 1, and if to zero, corpse it.
 578
 579     If t is the player avatar, only blank its fovmap, so that the client may
 580     still display memory data. On non-player things, erase fovmap and memory.
 581     Dying actors drop all their things.
 582     """
 583     t["T_LIFEPOINTS"] -= 1
 584     if 0 == t["T_LIFEPOINTS"]:
 585         for id in t["T_CARRIES"]:
 586             t["T_CARRIES"].remove(id)
 587             world_db["Things"][id]["T_POSY"] = t["T_POSY"]
 588             world_db["Things"][id]["T_POSX"] = t["T_POSX"]
 589             world_db["Things"][id]["carried"] = False
 590         t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
 591         if world_db["Things"][0] == t:
 592             t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 593             strong_write(io_db["file_out"], "LOG You die.\n")
 594         else:
 595             t["fovmap"] = False
 596             t["T_MEMMAP"] = False
 597             t["T_MEMDEPTHMAP"] = False
 598             t["T_MEMTHING"] = []
 599
 600
 601 def mv_yx_in_dir_legal(dir, y, x):
 602     """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
 603     dir_c = dir.encode("ascii")[0]
 604     test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
 605     if -1 == test:
 606         raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
 607     return (test, libpr.result_y(), libpr.result_x())
 608
 609
 610 def actor_wait(t):
 611     """Make t do nothing (but loudly, if player avatar)."""
 612     if t == world_db["Things"][0]:
 613         strong_write(io_db["file_out"], "LOG You wait.\n")
 614
 615
 616 def actor_move(t):
 617     """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
 618     passable = False
 619     move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
 620                                      t["T_POSY"], t["T_POSX"])
 621     if 1 == move_result[0]:
 622         pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
 623         passable = "." == chr(world_db["MAP"][pos])
 624         hitted = [id for id in world_db["Things"]
 625                   if world_db["Things"][id] != t
 626                   if world_db["Things"][id]["T_LIFEPOINTS"]
 627                   if world_db["Things"][id]["T_POSY"] == move_result[1]
 628                   if world_db["Things"][id]["T_POSX"] == move_result[2]]
 629         if len(hitted):
 630             hit_id = hitted[0]
 631             if t == world_db["Things"][0]:
 632                 hitted_type = world_db["Things"][hit_id]["T_TYPE"]
 633                 hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
 634                 strong_write(io_db["file_out"], "LOG You wound "
 635                                                 + hitted_name + ".\n")
 636             elif 0 == hit_id:
 637                 hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
 638                 strong_write(io_db["file_out"], "LOG " + hitter_name +
 639                                                 " wounds you.\n")
 640             decrement_lifepoints(world_db["Things"][hit_id])
 641             return
 642     dir = [dir for dir in directions_db
 643            if directions_db[dir] == chr(t["T_ARGUMENT"])][0]
 644     if passable:
 645         t["T_POSY"] = move_result[1]
 646         t["T_POSX"] = move_result[2]
 647         for id in t["T_CARRIES"]:
 648             world_db["Things"][id]["T_POSY"] = move_result[1]
 649             world_db["Things"][id]["T_POSX"] = move_result[2]
 650         build_fov_map(t)
 651         if t == world_db["Things"][0]:
 652             strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
 653     elif t == world_db["Things"][0]:
 654         strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
 655
 656
 657 def actor_pick_up(t):
 658     """Make t pick up (topmost?) Thing from ground into inventory."""
 659     # Topmostness is actually not defined so far. Picks Thing with highest ID.
 660     ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
 661            if not world_db["Things"][id]["carried"]
 662            if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 663            if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
 664     if len(ids):
 665         highest_id = 0
 666         for id in ids:
 667             if id > highest_id:
 668                 highest_id = id
 669         world_db["Things"][highest_id]["carried"] = True
 670         t["T_CARRIES"].append(highest_id)
 671         if t == world_db["Things"][0]:
 672             strong_write(io_db["file_out"], "LOG You pick up an object.\n")
 673     elif t == world_db["Things"][0]:
 674         err = "You try to pick up an object, but there is none."
 675         strong_write(io_db["file_out"], "LOG " + err + "\n")
 676
 677
 678 def actor_drop(t):
 679     """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
 680     # TODO: Handle case where T_ARGUMENT matches nothing.
 681     if len(t["T_CARRIES"]):
 682         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 683         t["T_CARRIES"].remove(id)
 684         world_db["Things"][id]["carried"] = False
 685         if t == world_db["Things"][0]:
 686             strong_write(io_db["file_out"], "LOG You drop an object.\n")
 687     elif t == world_db["Things"][0]:
 688         err = "You try to drop an object, but you own none."
 689         strong_write(io_db["file_out"], "LOG " + err + "\n")
 690
 691
 692 def actor_use(t):
 693     """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
 694     # TODO: Handle case where T_ARGUMENT matches nothing.
 695     if len(t["T_CARRIES"]):
 696         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 697         type = world_db["Things"][id]["T_TYPE"]
 698         if world_db["ThingTypes"][type]["TT_CONSUMABLE"]:
 699             t["T_CARRIES"].remove(id)
 700             del world_db["Things"][id]
 701             t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 702             if t == world_db["Things"][0]:
 703                 strong_write(io_db["file_out"],
 704                              "LOG You consume this object.\n")
 705         elif t == world_db["Things"][0]:
 706             strong_write(io_db["file_out"],
 707                          "LOG You try to use this object, but fail.\n")
 708     elif t == world_db["Things"][0]:
 709         strong_write(io_db["file_out"],
 710                      "LOG You try to use an object, but you own none.\n")
 711
 712
 713 def thingproliferation(t):
 714     """To chance of 1/TT_PROLIFERATE, create t offspring in neighbor cell.
 715
 716     Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be
 717     passable and not be inhabited by a Thing of the same type, or, if Thing is
 718     animate, any other animate Thing. If there are several map cell candidates,
 719     one is selected randomly.
 720     """
 721     def test_cell(t, y, x):
 722         if "." == chr(world_db["MAP"][(y * world_db["MAP_LENGTH"]) + x]):
 723             for id in [id for id in world_db["Things"]
 724                        if y == world_db["Things"][id]["T_POSY"]
 725                        if x == world_db["Things"][id]["T_POSX"]
 726                        if (t["T_TYPE"] == world_db["Things"][id]["T_TYPE"])
 727                        or (t["T_LIFEPOINTS"] and
 728                            world_db["Things"][id]["T_LIFEPOINTS"])]:
 729                 return False
 730             return True
 731         return False
 732     prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
 733     if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
 734         candidates = []
 735         for dir in [directions_db[key] for key in directions_db]:
 736             mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
 737             if mv_result[0] and test_cell(t, mv_result[1], mv_result[2]):
 738                 candidates.append((mv_result[1], mv_result[2]))
 739         if len(candidates):
 740             i = rand.next() % len(candidates)
 741             id = id_setter(-1, "Things")
 742             newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
 743             world_db["Things"][id] = newT
 744
 745
 746 def try_healing(t):
 747     """Grow t's HP to a 1/32 chance if < HP max, satiation > 0, and waiting.
 748
 749     On success, decrease satiation score by 32.
 750     """
 751     if t["T_SATIATION"] > 0 \
 752        and t["T_LIFEPOINTS"] < \
 753         world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] \
 754        and 0 == (rand.next() % 31) \
 755        and t["T_COMMAND"] == [id for id in world_db["ThingActions"]
 756                               if world_db["ThingActions"][id]["TA_NAME"] ==
 757                               "wait"][0]:
 758         t["T_LIFEPOINTS"] += 1
 759         t["T_SATIATION"] -= 32
 760         if t == world_db["Things"][0]:
 761             strong_write(io_db["file_out"], "LOG You heal.\n")
 762
 763
 764 def hunger(t):
 765     """Decrement t's satiation,dependent on it trigger lifepoint dec chance."""
 766     if t["T_SATIATION"] > -32768:
 767         t["T_SATIATION"] -= 1
 768     testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
 769     if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
 770         raise RuntimeError("A thing that should not hunger is hungering.")
 771     stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
 772     if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
 773         if t == world_db["Things"][0]:
 774             strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
 775         decrement_lifepoints(t)
 776
 777
 778 def get_dir_to_target(t, filter):
 779     """Try to set T_COMMAND/T_ARGUMENT for move to "filter"-determined target.
 780
 781     The path-wise nearest target is chosen, via the shortest available path.
 782     Target must not be t. On succcess, return positive value, else False.
 783     Filters:
 784     "a": Thing in FOV is below a certain distance, animate, but of ThingType
 785          that is not t's, and starts out weaker than t is; build path as
 786          avoiding things of t's ThingType
 787     "f": neighbor cell (not inhabited by any animate Thing) further away from
 788          animate Thing not further than x steps away and in FOV and of a
 789          ThingType that is not t's, and starts out stronger or as strong as t
 790          is currently; or (cornered), if no such flight cell, but Thing of
 791          above criteria is too near,1 a cell closer to it, or, if less near,
 792          just wait
 793     "c": Thing in memorized map is consumable
 794     "s": memory map cell with greatest-reachable degree of unexploredness
 795     """
 796
 797     def zero_score_map_where_char_on_memdepthmap(c):
 798         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 799         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 800         #           if t["T_MEMDEPTHMAP"][i] == mem_depth_c[0]]:
 801         #     set_map_score(i, 0)
 802         map = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 803         if libpr.zero_score_map_where_char_on_memdepthmap(c, map):
 804             raise RuntimeError("No score map allocated for "
 805                                "zero_score_map_where_char_on_memdepthmap().")
 806
 807     def set_map_score(pos, score):
 808         test = libpr.set_map_score(pos, score)
 809         if test:
 810             raise RuntimeError("No score map allocated for set_map_score().")
 811
 812     def get_map_score(pos):
 813         result = libpr.get_map_score(pos)
 814         if result < 0:
 815             raise RuntimeError("No score map allocated for get_map_score().")
 816         return result
 817
 818     def seeing_thing():
 819         if t["fovmap"] and ("a" == filter or "f" == filter):
 820             for id in world_db["Things"]:
 821                 Thing = world_db["Things"][id]
 822                 if Thing != t and Thing["T_LIFEPOINTS"] and \
 823                    t["T_TYPE"] != Thing["T_TYPE"] and \
 824                    'v' == chr(t["fovmap"][(Thing["T_POSY"]
 825                                           * world_db["MAP_LENGTH"])
 826                                           + Thing["T_POSX"]]):
 827                     ThingType = world_db["ThingTypes"][Thing["T_TYPE"]]
 828                     if ("f" == filter and ThingType["TT_LIFEPOINTS"] >=
 829                         t["T_LIFEPOINTS"]) \
 830                        or ("a" == filter and ThingType["TT_LIFEPOINTS"] <
 831                             t["T_LIFEPOINTS"]):
 832                         return True
 833         elif t["T_MEMMAP"] and "c" == filter:
 834             for mt in t["T_MEMTHING"]:
 835                 if ' ' != chr(t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
 836                                             + mt[2]]) \
 837                    and world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]:
 838                     return True
 839         return False
 840
 841     def set_cells_passable_on_memmap_to_65534_on_scoremap():
 842         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 843         # ord_dot = ord(".")
 844         # memmap = t["T_MEMMAP"]
 845         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 846         #            if ord_dot == memmap[i]]:
 847         #     set_map_score(i, 65534) # i.e. 65535-1
 848         map = c_pointer_to_bytearray(t["T_MEMMAP"])
 849         if libpr.set_cells_passable_on_memmap_to_65534_on_scoremap(map):
 850             raise RuntimeError("No score map allocated for set_cells_passable"
 851                                "_on_memmap_to_65534_on_scoremap().")
 852
 853     def init_score_map():
 854         test = libpr.init_score_map()
 855         if test:
 856             raise RuntimeError("Malloc error in init_score_map().")
 857         ord_v = ord("v")
 858         ord_blank = ord(" ")
 859         set_cells_passable_on_memmap_to_65534_on_scoremap()
 860         if "a" == filter:
 861             for id in world_db["Things"]:
 862                 Thing = world_db["Things"][id]
 863                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 864                     + Thing["T_POSX"]
 865                 if t != Thing and Thing["T_LIFEPOINTS"] and \
 866                    t["T_TYPE"] != Thing["T_TYPE"] and \
 867                    ord_v == t["fovmap"][pos] and \
 868                    t["T_LIFEPOINTS"] > \
 869                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 870                     set_map_score(pos, 0)
 871                 elif t["T_TYPE"] == Thing["T_TYPE"]:
 872                     set_map_score(pos, 65535)
 873         elif "f" == filter:
 874             for id in [id for id in world_db["Things"]
 875                        if world_db["Things"][id]["T_LIFEPOINTS"]]:
 876                 Thing = world_db["Things"][id]
 877                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 878                     + Thing["T_POSX"]
 879                 if t["T_TYPE"] != Thing["T_TYPE"] and \
 880                    ord_v == t["fovmap"][pos] and \
 881                    t["T_LIFEPOINTS"] <= \
 882                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 883                     set_map_score(pos, 0)
 884         elif "c" == filter:
 885             for mt in [mt for mt in t["T_MEMTHING"]
 886                        if ord_blank != t["T_MEMMAP"][mt[1]
 887                                                      * world_db["MAP_LENGTH"]
 888                                                      + mt[2]]
 889                        if world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]]:
 890                 set_map_score(mt[1] * world_db["MAP_LENGTH"] + mt[2], 0)
 891         elif "s" == filter:
 892             zero_score_map_where_char_on_memdepthmap(mem_depth_c[0])
 893
 894     def rand_target_dir(neighbors, cmp, dirs):
 895         candidates = []
 896         n_candidates = 0
 897         for i in range(len(dirs)):
 898             if cmp == neighbors[i]:
 899                 candidates.append(dirs[i])
 900                 n_candidates += 1
 901         return candidates[rand.next() % n_candidates] if n_candidates else 0
 902
 903     def get_neighbor_scores(dirs, eye_pos):
 904         scores = []
 905         if libpr.ready_neighbor_scores(eye_pos):
 906             raise RuntimeError("No score map allocated for " +
 907                                "ready_neighbor_scores.()")
 908         for i in range(len(dirs)):
 909             scores.append(libpr.get_neighbor_score(i))
 910         return scores
 911
 912     def get_dir_from_neighbors():
 913         dir_to_target = False
 914         dirs = "edcxsw"
 915         eye_pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
 916         neighbors = get_neighbor_scores(dirs, eye_pos)
 917         if "f" == filter:
 918             inhabited = [world_db["Things"][id]["T_POSY"]
 919                          * world_db["MAP_LENGTH"]
 920                          + world_db["Things"][id]["T_POSX"]
 921                          for id in world_db["Things"]
 922                          if world_db["Things"][id]["T_LIFEPOINTS"]]
 923             for i in range(len(dirs)):
 924                 mv_yx_in_dir_legal(dirs[i], t["T_POSY"], t["T_POSX"])
 925                 pos_cmp = libpr.result_y() * world_db["MAP_LENGTH"] \
 926                     + libpr.result_x()
 927                 for pos in [pos for pos in inhabited if pos == pos_cmp]:
 928                     neighbors[i] = 65535
 929                     break
 930         minmax_start = 0 if "f" == filter else 65535 - 1
 931         minmax_neighbor = minmax_start
 932         for i in range(len(dirs)):
 933             if ("f" == filter and get_map_score(eye_pos) < neighbors[i] and
 934                 minmax_neighbor < neighbors[i] and 65535 != neighbors[i]) \
 935                or ("f" != filter and minmax_neighbor > neighbors[i]):
 936                 minmax_neighbor = neighbors[i]
 937         if minmax_neighbor != minmax_start:
 938             dir_to_target = rand_target_dir(neighbors, minmax_neighbor, dirs)
 939         if "f" == filter:
 940             if not dir_to_target:
 941                 if 1 == get_map_score(eye_pos):
 942                     dir_to_target = rand_target_dir(neighbors, 0, dirs)
 943                 elif 3 >= get_map_score(eye_pos):
 944                     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 945                                       if
 946                                       world_db["ThingActions"][id]["TA_NAME"]
 947                                       == "wait"][0]
 948                     return 1
 949             elif dir_to_target and 3 < get_map_score(eye_pos):
 950                 dir_to_target = 0
 951         elif "a" == filter and 10 <= get_map_score(eye_pos):
 952             dir_to_target = 0
 953         return dir_to_target
 954
 955     dir_to_target = False
 956     mem_depth_c = b' '
 957     run_i = 9 + 1 if "s" == filter else 1
 958     while run_i and not dir_to_target and ("s" == filter or seeing_thing()):
 959         run_i -= 1
 960         init_score_map()
 961         mem_depth_c = b'9' if b' ' == mem_depth_c \
 962             else bytes([mem_depth_c[0] - 1])
 963         if libpr.dijkstra_map():
 964             raise RuntimeError("No score map allocated for dijkstra_map().")
 965         dir_to_target = get_dir_from_neighbors()
 966         libpr.free_score_map()
 967         if dir_to_target and str == type(dir_to_target):
 968             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 969                               if world_db["ThingActions"][id]["TA_NAME"]
 970                               == "move"][0]
 971             t["T_ARGUMENT"] = ord(dir_to_target)
 972     return dir_to_target
 973
 974
 975 def standing_on_consumable(t):
 976     """Return True/False whether t is standing on a consumable."""
 977     for id in [id for id in world_db["Things"] if world_db["Things"][id] != t
 978                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 979                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]
 980                if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
 981                           ["TT_CONSUMABLE"]]:
 982         return True
 983     return False
 984
 985
 986 def get_inventory_slot_to_consume(t):
 987     """Return slot Id of strongest consumable in t's inventory, else -1."""
 988     cmp_consumability = 0
 989     selection = -1
 990     i = 0
 991     for id in t["T_CARRIES"]:
 992         type = world_db["Things"][id]["T_TYPE"]
 993         if world_db["ThingTypes"][type]["TT_CONSUMABLE"] > cmp_consumability:
 994             cmp_consumability = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 995             selection = i
 996         i += 1
 997     return selection
 998
 999
1000 def ai(t):
1001     """Determine next command/argment for actor t via AI algorithms.
1002
1003     AI will look for, and move towards, enemies (animate Things not of their
1004     own ThingType); if they see none, they will consume consumables in their
1005     inventory; if there are none, they will pick up what they stand on if they
1006     stand on consumables; if they stand on none, they will move towards the
1007     next consumable they see or remember on the map; if they see or remember
1008     none, they will explore parts of the map unseen since ever or for at least
1009     one turn; if there is nothing to explore, they will simply wait.
1010     """
1011     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1012                       if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
1013     if not get_dir_to_target(t, "f"):
1014         sel = get_inventory_slot_to_consume(t)
1015         if -1 != sel:
1016             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1017                               if world_db["ThingActions"][id]["TA_NAME"]
1018                               == "use"][0]
1019             t["T_ARGUMENT"] = sel
1020         elif standing_on_consumable(t):
1021             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1022                               if world_db["ThingActions"][id]["TA_NAME"]
1023                               == "pick_up"][0]
1024         elif (not get_dir_to_target(t, "c")) and \
1025              (not get_dir_to_target(t, "a")):
1026             get_dir_to_target(t, "s")
1027
1028
1029 def turn_over():
1030     """Run game world and its inhabitants until new player input expected."""
1031     id = 0
1032     whilebreaker = False
1033     while world_db["Things"][0]["T_LIFEPOINTS"]:
1034         for id in [id for id in world_db["Things"]]:  # Only what's from start!
1035             if not id in world_db["Things"] or \
1036                world_db["Things"][id]["carried"]:   # May have been consumed or
1037                 continue                            # picked up during turn …
1038             Thing = world_db["Things"][id]
1039             if Thing["T_LIFEPOINTS"]:
1040                 if not Thing["T_COMMAND"]:
1041                     update_map_memory(Thing)
1042                     if 0 == id:
1043                         whilebreaker = True
1044                         break
1045                     ai(Thing)
1046                 try_healing(Thing)
1047                 Thing["T_PROGRESS"] += 1
1048                 taid = [a for a in world_db["ThingActions"]
1049                         if a == Thing["T_COMMAND"]][0]
1050                 ThingAction = world_db["ThingActions"][taid]
1051                 if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
1052                     eval("actor_" + ThingAction["TA_NAME"])(Thing)
1053                     Thing["T_COMMAND"] = 0
1054                     Thing["T_PROGRESS"] = 0
1055                 hunger(Thing)
1056             thingproliferation(Thing)
1057         if whilebreaker:
1058             break
1059         world_db["TURN"] += 1
1060
1061
1062 def new_Thing(type, pos=(0, 0)):
1063     """Return Thing of type T_TYPE, with fovmap if alive and world active."""
1064     thing = {
1065         "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
1066         "T_ARGUMENT": 0,
1067         "T_PROGRESS": 0,
1068         "T_SATIATION": 0,
1069         "T_COMMAND": 0,
1070         "T_TYPE": type,
1071         "T_POSY": pos[0],
1072         "T_POSX": pos[1],
1073         "T_CARRIES": [],
1074         "carried": False,
1075         "T_MEMTHING": [],
1076         "T_MEMMAP": False,
1077         "T_MEMDEPTHMAP": False,
1078         "fovmap": False
1079     }
1080     if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
1081         build_fov_map(thing)
1082     return thing
1083
1084
1085 def id_setter(id, category, id_store=False, start_at_1=False):
1086     """Set ID of object of category to manipulate ID unused? Create new one.
1087     The ID is stored as id_store.id (if id_store is set). If the integer of the
1088     input is valid (if start_at_1, >= 0, else >= -1), but <0 or (if start_at_1)
1089     <1, calculate new ID: lowest unused ID >=0 or (if start_at_1) >= 1. None is
1090     always returned when no new object is created, else the new object's ID.
1091     """
1092     min = 0 if start_at_1 else -1
1093     if str == type(id):
1094         id = integer_test(id, min)
1095     if None != id:
1096         if id in world_db[category]:
1097             if id_store:
1098                 id_store.id = id
1099             return None
1100         else:
1101             if (start_at_1 and 0 == id) \
1102                or ((not start_at_1) and (id < 0)):
1103                 id = 0 if start_at_1 else -1
1104                 while 1:
1105                     id = id + 1
1106                     if id not in world_db[category]:
1107                         break
1108             if id_store:
1109                 id_store.id = id
1110     return id
1111
1112
1113 def command_ping():
1114     """Send PONG line to server output file."""
1115     strong_write(io_db["file_out"], "PONG\n")
1116
1117
1118 def command_quit():
1119     """Abort server process."""
1120     if None == opts.replay:
1121         save_world()
1122         atomic_write(io_db["path_record"], io_db["record_chunk"], do_append=True)
1123     raise SystemExit("received QUIT command")
1124
1125
1126 def command_thingshere(str_y, str_x):
1127     """Write to out file list of Things known to player at coordinate y, x."""
1128     if world_db["WORLD_ACTIVE"]:
1129         y = integer_test(str_y, 0, 255)
1130         x = integer_test(str_x, 0, 255)
1131         length = world_db["MAP_LENGTH"]
1132         if None != y and None != x and y < length and x < length:
1133             pos = (y * world_db["MAP_LENGTH"]) + x
1134             strong_write(io_db["file_out"], "THINGS_HERE START\n")
1135             if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
1136                 for id in world_db["Things"]:
1137                     if y == world_db["Things"][id]["T_POSY"] \
1138                        and x == world_db["Things"][id]["T_POSX"] \
1139                        and not world_db["Things"][id]["carried"]:
1140                         type = world_db["Things"][id]["T_TYPE"]
1141                         name = world_db["ThingTypes"][type]["TT_NAME"]
1142                         strong_write(io_db["file_out"], name + "\n")
1143             else:
1144                 for mt in world_db["Things"][0]["T_MEMTHING"]:
1145                     if y == mt[1] and x == mt[2]:
1146                         name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
1147                         strong_write(io_db["file_out"], name + "\n")
1148             strong_write(io_db["file_out"], "THINGS_HERE END\n")
1149         else:
1150             print("Ignoring: Invalid map coordinates.")
1151     else:
1152         print("Ignoring: Command only works on existing worlds.")
1153
1154
1155 def play_commander(action, args=False):
1156     """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
1157
1158     T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
1159     """
1160
1161     def set_command():
1162         id = [x for x in world_db["ThingActions"]
1163               if world_db["ThingActions"][x]["TA_NAME"] == action][0]
1164         world_db["Things"][0]["T_COMMAND"] = id
1165         turn_over()
1166
1167     def set_command_and_argument_int(str_arg):
1168         val = integer_test(str_arg, 0, 255)
1169         if None != val:
1170             world_db["Things"][0]["T_ARGUMENT"] = val
1171             set_command()
1172
1173     def set_command_and_argument_movestring(str_arg):
1174         if str_arg in directions_db:
1175             world_db["Things"][0]["T_ARGUMENT"] = ord(directions_db[str_arg])
1176             set_command()
1177         else:
1178             print("Ignoring: Argument must be valid direction string.")
1179
1180     if action == "move":
1181         return set_command_and_argument_movestring
1182     elif args:
1183         return set_command_and_argument_int
1184     else:
1185         return set_command
1186
1187
1188 def command_seedrandomness(seed_string):
1189     """Set rand seed to int(seed_string)."""
1190     val = integer_test(seed_string, 0, 4294967295)
1191     if None != val:
1192         rand.seed = val
1193
1194
1195 def command_seedmap(seed_string):
1196     """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
1197     setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
1198     remake_map()
1199
1200
1201 def command_makeworld(seed_string):
1202     """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
1203
1204     Seed rand with seed, fill it into world_db["SEED_MAP"]. Do more only with a
1205     "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType of
1206     TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
1207     and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
1208     according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
1209     of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
1210     other. Init player's memory map. Write "NEW_WORLD" line to out file.
1211     """
1212
1213     def free_pos():
1214         i = 0
1215         while 1:
1216             err = "Space to put thing on too hard to find. Map too small?"
1217             while 1:
1218                 y = rand.next() % world_db["MAP_LENGTH"]
1219                 x = rand.next() % world_db["MAP_LENGTH"]
1220                 if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
1221                     break
1222                 i += 1
1223                 if i == 65535:
1224                     raise SystemExit(err)
1225             # Replica of C code, wrongly ignores animatedness of new Thing.
1226             pos_clear = (0 == len([id for id in world_db["Things"]
1227                                    if world_db["Things"][id]["T_LIFEPOINTS"]
1228                                    if world_db["Things"][id]["T_POSY"] == y
1229                                    if world_db["Things"][id]["T_POSX"] == x]))
1230             if pos_clear:
1231                 break
1232         return (y, x)
1233
1234     val = integer_test(seed_string, 0, 4294967295)
1235     if None == val:
1236         return
1237     rand.seed = val
1238     world_db["SEED_MAP"] = val
1239     player_will_be_generated = False
1240     playertype = world_db["PLAYER_TYPE"]
1241     for ThingType in world_db["ThingTypes"]:
1242         if playertype == ThingType:
1243             if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
1244                 player_will_be_generated = True
1245             break
1246     if not player_will_be_generated:
1247         print("Ignoring beyond SEED_MAP: " +
1248               "No player type with start number >0 defined.")
1249         return
1250     wait_action = False
1251     for ThingAction in world_db["ThingActions"]:
1252         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1253             wait_action = True
1254     if not wait_action:
1255         print("Ignoring beyond SEED_MAP: " +
1256               "No thing action with name 'wait' defined.")
1257         return
1258     world_db["Things"] = {}
1259     remake_map()
1260     world_db["WORLD_ACTIVE"] = 1
1261     world_db["TURN"] = 1
1262     for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
1263         id = id_setter(-1, "Things")
1264         world_db["Things"][id] = new_Thing(playertype, free_pos())
1265     update_map_memory(world_db["Things"][0])
1266     for type in world_db["ThingTypes"]:
1267         for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
1268             if type != playertype:
1269                 id = id_setter(-1, "Things")
1270                 world_db["Things"][id] = new_Thing(type, free_pos())
1271     strong_write(io_db["file_out"], "NEW_WORLD\n")
1272
1273
1274 def command_maplength(maplength_string):
1275     """Redefine map length. Invalidate map, therefore lose all things on it."""
1276     val = integer_test(maplength_string, 1, 256)
1277     if None != val:
1278         world_db["MAP_LENGTH"] = val
1279         set_world_inactive()
1280         world_db["Things"] = {}
1281         libpr.set_maplength(val)
1282
1283
1284 def command_worldactive(worldactive_string):
1285     """Toggle world_db["WORLD_ACTIVE"] if possible.
1286
1287     An active world can always be set inactive. An inactive world can only be
1288     set active with a "wait" ThingAction, and a player Thing (of ID 0). On
1289     activation, rebuild all Things' FOVs, and the player's map memory.
1290     """
1291     # In original version, map existence was also tested (unnecessarily?).
1292     val = integer_test(worldactive_string, 0, 1)
1293     if val:
1294         if 0 != world_db["WORLD_ACTIVE"]:
1295             if 0 == val:
1296                 set_world_inactive()
1297             else:
1298                 print("World already active.")
1299         elif 0 == world_db["WORLD_ACTIVE"]:
1300             wait_exists = False
1301             for ThingAction in world_db["ThingActions"]:
1302                 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1303                     wait_exists = True
1304                     break
1305             player_exists = False
1306             for Thing in world_db["Things"]:
1307                 if 0 == Thing:
1308                     player_exists = True
1309                     break
1310             if wait_exists and player_exists:
1311                 for id in world_db["Things"]:
1312                     if world_db["Things"][id]["T_LIFEPOINTS"]:
1313                         build_fov_map(world_db["Things"][id])
1314                         if 0 == id:
1315                             update_map_memory(world_db["Things"][id], False)
1316                 world_db["WORLD_ACTIVE"] = 1
1317
1318
1319 def test_for_id_maker(object, category):
1320     """Return decorator testing for object having "id" attribute."""
1321     def decorator(f):
1322         def helper(*args):
1323             if hasattr(object, "id"):
1324                 f(*args)
1325             else:
1326                 print("Ignoring: No " + category +
1327                       " defined to manipulate yet.")
1328         return helper
1329     return decorator
1330
1331
1332 def command_tid(id_string):
1333     """Set ID of Thing to manipulate. ID unused? Create new one.
1334
1335     Default new Thing's type to the first available ThingType, others: zero.
1336     """
1337     id = id_setter(id_string, "Things", command_tid)
1338     if None != id:
1339         if world_db["ThingTypes"] == {}:
1340             print("Ignoring: No ThingType to settle new Thing in.")
1341             return
1342         type = list(world_db["ThingTypes"].keys())[0]
1343         world_db["Things"][id] = new_Thing(type)
1344
1345
1346 test_Thing_id = test_for_id_maker(command_tid, "Thing")
1347
1348
1349 @test_Thing_id
1350 def command_tcommand(str_int):
1351     """Set T_COMMAND of selected Thing."""
1352     val = integer_test(str_int, 0)
1353     if None != val:
1354         if 0 == val or val in world_db["ThingActions"]:
1355             world_db["Things"][command_tid.id]["T_COMMAND"] = val
1356         else:
1357             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
1358
1359
1360 @test_Thing_id
1361 def command_ttype(str_int):
1362     """Set T_TYPE of selected Thing."""
1363     val = integer_test(str_int, 0)
1364     if None != val:
1365         if val in world_db["ThingTypes"]:
1366             world_db["Things"][command_tid.id]["T_TYPE"] = val
1367         else:
1368             print("Ignoring: ThingType ID belongs to no known ThingType.")
1369
1370
1371 @test_Thing_id
1372 def command_tcarries(str_int):
1373     """Append int(str_int) to T_CARRIES of selected Thing.
1374
1375     The ID int(str_int) must not be of the selected Thing, and must belong to a
1376     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
1377     """
1378     val = integer_test(str_int, 0)
1379     if None != val:
1380         if val == command_tid.id:
1381             print("Ignoring: Thing cannot carry itself.")
1382         elif val in world_db["Things"] \
1383                 and not world_db["Things"][val]["carried"]:
1384             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
1385             world_db["Things"][val]["carried"] = True
1386         else:
1387             print("Ignoring: Thing not available for carrying.")
1388     # Note that the whole carrying structure is different from the C version:
1389     # Carried-ness is marked by a "carried" flag, not by Things containing
1390     # Things internally.
1391
1392
1393 @test_Thing_id
1394 def command_tmemthing(str_t, str_y, str_x):
1395     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
1396
1397     The type must fit to an existing ThingType, and the position into the map.
1398     """
1399     type = integer_test(str_t, 0)
1400     posy = integer_test(str_y, 0, 255)
1401     posx = integer_test(str_x, 0, 255)
1402     if None != type and None != posy and None != posx:
1403         if type not in world_db["ThingTypes"] \
1404            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
1405             print("Ignoring: Illegal value for thing type or position.")
1406         else:
1407             memthing = (type, posy, posx)
1408             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
1409
1410
1411 def setter_map(maptype):
1412     """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
1413
1414     If Thing has no map of maptype yet, initialize it with ' ' bytes first.
1415     """
1416     @test_Thing_id
1417     def helper(str_int, mapline):
1418         val = integer_test(str_int, 0, 255)
1419         if None != val:
1420             if val >= world_db["MAP_LENGTH"]:
1421                 print("Illegal value for map line number.")
1422             elif len(mapline) != world_db["MAP_LENGTH"]:
1423                 print("Map line length is unequal map width.")
1424             else:
1425                 length = world_db["MAP_LENGTH"]
1426                 map = None
1427                 if not world_db["Things"][command_tid.id][maptype]:
1428                     map = bytearray(b' ' * (length ** 2))
1429                 else:
1430                     map = world_db["Things"][command_tid.id][maptype]
1431                 map[val * length:(val * length) + length] = mapline.encode()
1432                 world_db["Things"][command_tid.id][maptype] = map
1433     return helper
1434
1435
1436 def setter_tpos(axis):
1437     """Generate setter for T_POSX or  T_POSY of selected Thing.
1438
1439     If world is active, rebuilds animate things' fovmap, player's memory map.
1440     """
1441     @test_Thing_id
1442     def helper(str_int):
1443         val = integer_test(str_int, 0, 255)
1444         if None != val:
1445             if val < world_db["MAP_LENGTH"]:
1446                 world_db["Things"][command_tid.id]["T_POS" + axis] = val
1447                 if world_db["WORLD_ACTIVE"] \
1448                    and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
1449                     build_fov_map(world_db["Things"][command_tid.id])
1450                     if 0 == command_tid.id:
1451                         update_map_memory(world_db["Things"][command_tid.id])
1452             else:
1453                 print("Ignoring: Position is outside of map.")
1454     return helper
1455
1456
1457 def command_ttid(id_string):
1458     """Set ID of ThingType to manipulate. ID unused? Create new one.
1459
1460     Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
1461     """
1462     id = id_setter(id_string, "ThingTypes", command_ttid)
1463     if None != id:
1464         world_db["ThingTypes"][id] = {
1465             "TT_NAME": "(none)",
1466             "TT_CONSUMABLE": 0,
1467             "TT_LIFEPOINTS": 0,
1468             "TT_PROLIFERATE": 0,
1469             "TT_START_NUMBER": 0,
1470             "TT_SYMBOL": "?",
1471             "TT_CORPSE_ID": id
1472         }
1473
1474
1475 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
1476
1477
1478 @test_ThingType_id
1479 def command_ttname(name):
1480     """Set TT_NAME of selected ThingType."""
1481     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
1482
1483
1484 @test_ThingType_id
1485 def command_ttsymbol(char):
1486     """Set TT_SYMBOL of selected ThingType. """
1487     if 1 == len(char):
1488         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
1489     else:
1490         print("Ignoring: Argument must be single character.")
1491
1492
1493 @test_ThingType_id
1494 def command_ttcorpseid(str_int):
1495     """Set TT_CORPSE_ID of selected ThingType."""
1496     val = integer_test(str_int, 0)
1497     if None != val:
1498         if val in world_db["ThingTypes"]:
1499             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
1500         else:
1501             print("Ignoring: Corpse ID belongs to no known ThignType.")
1502
1503
1504 def command_taid(id_string):
1505     """Set ID of ThingAction to manipulate. ID unused? Create new one.
1506
1507     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
1508     """
1509     id = id_setter(id_string, "ThingActions", command_taid, True)
1510     if None != id:
1511         world_db["ThingActions"][id] = {
1512             "TA_EFFORT": 1,
1513             "TA_NAME": "wait"
1514         }
1515
1516
1517 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
1518
1519
1520 @test_ThingAction_id
1521 def command_taname(name):
1522     """Set TA_NAME of selected ThingAction.
1523
1524     The name must match a valid thing action function. If after the name
1525     setting no ThingAction with name "wait" remains, call set_world_inactive().
1526     """
1527     if name == "wait" or name == "move" or name == "use" or name == "drop" \
1528        or name == "pick_up":
1529         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
1530         if 1 == world_db["WORLD_ACTIVE"]:
1531             wait_defined = False
1532             for id in world_db["ThingActions"]:
1533                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
1534                     wait_defined = True
1535                     break
1536             if not wait_defined:
1537                 set_world_inactive()
1538     else:
1539         print("Ignoring: Invalid action name.")
1540     # In contrast to the original,naming won't map a function to a ThingAction.
1541
1542
1543 def command_ai():
1544     """Call ai() on player Thing, then turn_over()."""
1545     ai(world_db["Things"][0])
1546     turn_over()
1547
1548
1549 """Commands database.
1550
1551 Map command start tokens to ([0]) number of expected command arguments, ([1])
1552 the command's meta-ness (i.e. is it to be written to the record file, is it to
1553 be ignored in replay mode if read from server input file), and ([2]) a function
1554 to be called on it.
1555 """
1556 commands_db = {
1557     "QUIT": (0, True, command_quit),
1558     "PING": (0, True, command_ping),
1559     "THINGS_HERE": (2, True, command_thingshere),
1560     "MAKE_WORLD": (1, False, command_makeworld),
1561     "SEED_MAP": (1, False, command_seedmap),
1562     "SEED_RANDOMNESS": (1, False, command_seedrandomness),
1563     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1564     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0)),
1565     "MAP_LENGTH": (1, False, command_maplength),
1566     "WORLD_ACTIVE": (1, False, command_worldactive),
1567     "TA_ID": (1, False, command_taid),
1568     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1569     "TA_NAME": (1, False, command_taname),
1570     "TT_ID": (1, False, command_ttid),
1571     "TT_NAME": (1, False, command_ttname),
1572     "TT_SYMBOL": (1, False, command_ttsymbol),
1573     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1574     "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1575                                        0, 65535)),
1576     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1577                                          0, 255)),
1578     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1579                                         0, 255)),
1580     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1581     "T_ID": (1, False, command_tid),
1582     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1583     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1584     "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1585     "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1586     "T_COMMAND": (1, False, command_tcommand),
1587     "T_TYPE": (1, False, command_ttype),
1588     "T_CARRIES": (1, False, command_tcarries),
1589     "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1590     "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1591     "T_MEMTHING": (3, False, command_tmemthing),
1592     "T_POSY": (1, False, setter_tpos("Y")),
1593     "T_POSX": (1, False, setter_tpos("X")),
1594     "wait": (0, False, play_commander("wait")),
1595     "move": (1, False, play_commander("move")),
1596     "pick_up": (0, False, play_commander("pick_up")),
1597     "drop": (1, False, play_commander("drop", True)),
1598     "use": (1, False, play_commander("use", True)),
1599     "ai": (0, False, command_ai)
1600 }
1601
1602
1603 """World state database. With sane default values. (Randomness is in rand.)"""
1604 world_db = {
1605     "TURN": 0,
1606     "MAP_LENGTH": 64,
1607     "SEED_MAP": 0,
1608     "PLAYER_TYPE": 0,
1609     "WORLD_ACTIVE": 0,
1610     "ThingActions": {},
1611     "ThingTypes": {},
1612     "Things": {}
1613 }
1614
1615 """Mapping of direction names to internal direction chars."""
1616 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
1617                  "west": "s", "north-west": "w", "north-east": "e"}
1618
1619 """File IO database."""
1620 io_db = {
1621     "path_save": "save",
1622     "path_record": "record_save",
1623     "path_worldconf": "confserver/world",
1624     "path_server": "server/",
1625     "path_in": "server/in",
1626     "path_out": "server/out",
1627     "path_worldstate": "server/worldstate",
1628     "tmp_suffix": "_tmp",
1629     "kicked_by_rival": False,
1630     "worldstate_updateable": False
1631 }
1632
1633
1634 try:
1635     libpr = prep_library()
1636     rand = RandomnessIO()
1637     opts = parse_command_line_arguments()
1638     if opts.savefile:
1639         io_db["path_save"] = opts.savefile
1640         io_db["path_record"] = "record_" + opts.savefile
1641     setup_server_io()
1642     if opts.verbose:
1643         io_db["verbose"] = True
1644     if None != opts.replay:
1645         replay_game()
1646     else:
1647         play_game()
1648 except SystemExit as exit:
1649     print("ABORTING: " + exit.args[0])
1650 except:
1651     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
1652     raise
1653 finally:
1654     cleanup_server_io()