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_EXISTS"], 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 world_db[category]:
 196             string = string + id_string + " " + str(id) + "\n"
 197             for key in world_db[category][id]:
 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 world_db:
 208         if dict != type(world_db[key]) 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 world_db["ThingTypes"]:
 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 world_db["Things"]:
 223         if [] != world_db["Things"][id]["T_CARRIES"]:
 224             string = string + "T_ID " + str(id) + "\n"
 225             for carried_id in world_db["Things"][id]["T_CARRIES"]:
 226                 string = string + "T_CARRIES " + str(carried_id) + "\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         ## 7DRL additions:  GOD_MOOD, GOD_FAVOR
 334         string = str(world_db["TURN"]) + "\n" + \
 335                  str(world_db["GOD_MOOD"]) + "\n" + \
 336                  str(world_db["GOD_FAVOR"]) + "\n" + \
 337                  str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
 338                  str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
 339                  inventory + "%\n" + \
 340                  str(world_db["Things"][0]["T_POSY"]) + "\n" + \
 341                  str(world_db["Things"][0]["T_POSX"]) + "\n" + \
 342                  str(world_db["MAP_LENGTH"]) + "\n"
 343         length = world_db["MAP_LENGTH"]
 344         fov = bytearray(b' ' * (length ** 2))
 345         for pos in range(length ** 2):
 346             if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
 347                 fov[pos] = world_db["MAP"][pos]
 348         for i in range(3):
 349             draw_visible_Things(fov, i)
 350         string = write_map(string, fov)
 351         mem = world_db["Things"][0]["T_MEMMAP"][:]
 352         for i in range(2):
 353             for mt in world_db["Things"][0]["T_MEMTHING"]:
 354                 consumable = world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]
 355                 if (i == 0 and not consumable) or (i == 1 and consumable):
 356                     c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
 357                     mem[(mt[1] * length) + mt[2]] = ord(c)
 358         string = write_map(string, mem)
 359         atomic_write(io_db["path_worldstate"], string, delete=False)
 360         strong_write(io_db["file_out"], "WORLD_UPDATED\n")
 361         io_db["worldstate_updateable"] = False
 362
 363
 364 def replay_game():
 365     """Replay game from record file.
 366
 367     Use opts.replay as breakpoint turn to which to replay automatically before
 368     switching to manual input by non-meta commands in server input file
 369     triggering further reads of record file. Ensure opts.replay is at least 1.
 370     Run try_worldstate_update() before each interactive obey()/read_command().
 371     """
 372     if opts.replay < 1:
 373         opts.replay = 1
 374     print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
 375           " (if so late a turn is to be found).")
 376     if not os.access(io_db["path_record"], os.F_OK):
 377         raise SystemExit("No record file found to replay.")
 378     io_db["file_record"] = open(io_db["path_record"], "r")
 379     io_db["file_record"].prefix = "record file line "
 380     io_db["file_record"].line_n = 1
 381     while world_db["TURN"] < opts.replay:
 382         line = io_db["file_record"].readline()
 383         if "" == line:
 384             break
 385         obey(line.rstrip(), io_db["file_record"].prefix
 386              + str(io_db["file_record"].line_n))
 387         io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 388     while True:
 389         try_worldstate_update()
 390         obey(read_command(), "in file", replay=True)
 391
 392
 393 def play_game():
 394     """Play game by server input file commands. Before, load save file found.
 395
 396     If no save file is found, a new world is generated from the commands in the
 397     world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
 398     command and all that follow via the server input file. Run
 399     try_worldstate_update() before each interactive obey()/read_command().
 400     """
 401     if os.access(io_db["path_save"], os.F_OK):
 402         obey_lines_in_file(io_db["path_save"], "save")
 403     else:
 404         if not os.access(io_db["path_worldconf"], os.F_OK):
 405             msg = "No world config file from which to start a new world."
 406             raise SystemExit(msg)
 407         obey_lines_in_file(io_db["path_worldconf"], "world config ",
 408                            do_record=True)
 409         obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
 410     while True:
 411         try_worldstate_update()
 412         obey(read_command(), "in file", do_record=True)
 413
 414
 415 def remake_map():
 416     """(Re-)make island map.
 417
 418     Let "~" represent water, "." land, "X" trees: Build island shape randomly,
 419     start with one land cell in the middle, then go into cycle of repeatedly
 420     selecting a random sea cell and transforming it into land if it is neighbor
 421     to land. The cycle ends when a land cell is due to be created at the map's
 422     border. Then put some trees on the map (TODO: more precise algorithm desc).
 423     """
 424     def is_neighbor(coordinates, type):
 425         y = coordinates[0]
 426         x = coordinates[1]
 427         length = world_db["MAP_LENGTH"]
 428         ind = y % 2
 429         diag_west = x + (ind > 0)
 430         diag_east = x + (ind < (length - 1))
 431         pos = (y * length) + x
 432         if (y > 0 and diag_east
 433             and type == chr(world_db["MAP"][pos - length + ind])) \
 434            or (x < (length - 1)
 435                and type == chr(world_db["MAP"][pos + 1])) \
 436            or (y < (length - 1) and diag_east
 437                and type == chr(world_db["MAP"][pos + length + ind])) \
 438            or (y > 0 and diag_west
 439                and type == chr(world_db["MAP"][pos - length - (not ind)])) \
 440            or (x > 0
 441                and type == chr(world_db["MAP"][pos - 1])) \
 442            or (y < (length - 1) and diag_west
 443                and type == chr(world_db["MAP"][pos + length - (not ind)])):
 444             return True
 445         return False
 446     store_seed = rand.seed
 447     rand.seed = world_db["SEED_MAP"]
 448     world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
 449     length = world_db["MAP_LENGTH"]
 450     add_half_width = (not (length % 2)) * int(length / 2)
 451     world_db["MAP"][int((length ** 2) / 2) + add_half_width] = ord(".")
 452     while (1):
 453         y = rand.next() % length
 454         x = rand.next() % length
 455         pos = (y * length) + x
 456         if "~" == chr(world_db["MAP"][pos]) and is_neighbor((y, x), "."):
 457             if y == 0 or y == (length - 1) or x == 0 or x == (length - 1):
 458                 break
 459             world_db["MAP"][pos] = ord(".")
 460     n_trees = int((length ** 2) / 16)
 461     i_trees = 0
 462     while (i_trees <= n_trees):
 463         single_allowed = rand.next() % 32
 464         y = rand.next() % length
 465         x = rand.next() % length
 466         pos = (y * length) + x
 467         if "." == chr(world_db["MAP"][pos]) \
 468           and ((not single_allowed) or is_neighbor((y, x), "X")):
 469             world_db["MAP"][pos] = ord("X")
 470             i_trees += 1
 471     rand.seed = store_seed
 472     # This all-too-precise replica of the original C code misses iter_limit().
 473
 474
 475 def update_map_memory(t, age_map=True):
 476     """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
 477     def age_some_memdepthmap_on_nonfov_cells():
 478         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 479         # ord_v = ord("v")
 480         # ord_0 = ord("0")
 481         # ord_9 = ord("9")
 482         # for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 483         #             if not ord_v == t["fovmap"][pos]
 484         #             if ord_0 <= t["T_MEMDEPTHMAP"][pos]
 485         #             if ord_9 > t["T_MEMDEPTHMAP"][pos]
 486         #             if not rand.next() % (2 **
 487         #                                   (t["T_MEMDEPTHMAP"][pos] - 48))]:
 488         #     t["T_MEMDEPTHMAP"][pos] += 1
 489         memdepthmap = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 490         fovmap = c_pointer_to_bytearray(t["fovmap"])
 491         libpr.age_some_memdepthmap_on_nonfov_cells(memdepthmap, fovmap)
 492     if not t["T_MEMMAP"]:
 493         t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 494     if not t["T_MEMDEPTHMAP"]:
 495         t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 496     ord_v = ord("v")
 497     ord_0 = ord("0")
 498     ord_space = ord(" ")
 499     for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 500                 if ord_v == t["fovmap"][pos]]:
 501         t["T_MEMDEPTHMAP"][pos] = ord_0
 502         if ord_space == t["T_MEMMAP"][pos]:
 503             t["T_MEMMAP"][pos] = world_db["MAP"][pos]
 504     if age_map:
 505         age_some_memdepthmap_on_nonfov_cells()
 506     for mt in [mt for mt in t["T_MEMTHING"]
 507                if ord_v == t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
 508                                        + mt[2]]]:
 509         t["T_MEMTHING"].remove(mt)
 510     for id in [id for id in world_db["Things"]
 511                if not world_db["Things"][id]["carried"]]:
 512         type = world_db["Things"][id]["T_TYPE"]
 513         if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
 514             y = world_db["Things"][id]["T_POSY"]
 515             x = world_db["Things"][id]["T_POSX"]
 516             if ord_v == t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]:
 517                 t["T_MEMTHING"].append((type, y, x))
 518
 519
 520 def set_world_inactive():
 521     """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
 522     server_test()
 523     if os.access(io_db["path_worldstate"], os.F_OK):
 524         os.remove(io_db["path_worldstate"])
 525     world_db["WORLD_ACTIVE"] = 0
 526
 527
 528 def integer_test(val_string, min, max=None):
 529     """Return val_string if possible integer >= min and <= max, else None."""
 530     try:
 531         val = int(val_string)
 532         if val < min or (max is not None and val > max):
 533             raise ValueError
 534         return val
 535     except ValueError:
 536         msg = "Ignoring: Please use integer >= " + str(min)
 537         if max is not None:
 538             msg += " and <= " + str(max)
 539         msg += "."
 540         print(msg)
 541         return None
 542
 543
 544 def setter(category, key, min, max=None):
 545     """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
 546     if category is None:
 547         def f(val_string):
 548             val = integer_test(val_string, min, max)
 549             if None != val:
 550                 world_db[key] = val
 551     else:
 552         if category == "Thing":
 553             id_store = command_tid
 554             decorator = test_Thing_id
 555         elif category == "ThingType":
 556             id_store = command_ttid
 557             decorator = test_ThingType_id
 558         elif category == "ThingAction":
 559             id_store = command_taid
 560             decorator = test_ThingAction_id
 561
 562         @decorator
 563         def f(val_string):
 564             val = integer_test(val_string, min, max)
 565             if None != val:
 566                 world_db[category + "s"][id_store.id][key] = val
 567     return f
 568
 569
 570 def build_fov_map(t):
 571     """Build Thing's FOV map."""
 572     t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
 573     fovmap = c_pointer_to_bytearray(t["fovmap"])
 574     map = c_pointer_to_bytearray(world_db["MAP"])
 575     if libpr.build_fov_map(t["T_POSY"], t["T_POSX"], fovmap, map):
 576         raise RuntimeError("Malloc error in build_fov_Map().")
 577
 578
 579 def decrement_lifepoints(t):
 580     """Decrement t's lifepoints by 1, and if to zero, corpse it.
 581
 582     If t is the player avatar, only blank its fovmap, so that the client may
 583     still display memory data. On non-player things, erase fovmap and memory.
 584     """
 585     t["T_LIFEPOINTS"] -= 1
 586     if 0 == t["T_LIFEPOINTS"]:
 587         t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
 588         if world_db["Things"][0] == t:
 589             t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 590             strong_write(io_db["file_out"], "LOG You die.\n")
 591         else:
 592             t["fovmap"] = False
 593             t["T_MEMMAP"] = False
 594             t["T_MEMDEPTHMAP"] = False
 595             t["T_MEMTHING"] = []
 596
 597
 598 def mv_yx_in_dir_legal(dir, y, x):
 599     """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
 600     dir_c = dir.encode("ascii")[0]
 601     test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
 602     if -1 == test:
 603         raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
 604     return (test, libpr.result_y(), libpr.result_x())
 605
 606
 607 def actor_wait(t):
 608     """Make t do nothing (but loudly, if player avatar)."""
 609     if t == world_db["Things"][0]:
 610         strong_write(io_db["file_out"], "LOG You wait.\n")
 611
 612
 613 def actor_move(t):
 614     """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
 615     passable = False
 616     move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
 617                                      t["T_POSY"], t["T_POSX"])
 618     if 1 == move_result[0]:
 619         pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
 620         passable = "." == chr(world_db["MAP"][pos])
 621         hitted = [id for id in world_db["Things"]
 622                   if world_db["Things"][id] != t
 623                   if world_db["Things"][id]["T_LIFEPOINTS"]
 624                   if world_db["Things"][id]["T_POSY"] == move_result[1]
 625                   if world_db["Things"][id]["T_POSX"] == move_result[2]]
 626         if len(hitted):
 627             hit_id = hitted[0]
 628             if t == world_db["Things"][0]:
 629                 hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
 630                 strong_write(io_db["file_out"], "LOG You wound " + hitted +
 631                                                 ".\n")
 632             elif 0 == hit_id:
 633                 hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
 634                 strong_write(io_db["file_out"], "LOG " + hitter +
 635                                                 " wounds you.\n")
 636             decrement_lifepoints(world_db["Things"][hit_id])
 637             return
 638     dir = [dir for dir in directions_db
 639            if directions_db[dir] == chr(t["T_ARGUMENT"])][0]
 640     if passable:
 641         t["T_POSY"] = move_result[1]
 642         t["T_POSX"] = move_result[2]
 643         for id in t["T_CARRIES"]:
 644             world_db["Things"][id]["T_POSY"] = move_result[1]
 645             world_db["Things"][id]["T_POSX"] = move_result[2]
 646         build_fov_map(t)
 647         if t == world_db["Things"][0]:
 648             strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
 649     elif t == world_db["Things"][0]:
 650         strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
 651
 652
 653 def actor_pick_up(t):
 654     """Make t pick up (topmost?) Thing from ground into inventory."""
 655     # Topmostness is actually not defined so far. Picks Thing with highest ID.
 656     used_slots = len(t["T_CARRIES"]) # #
 657     if used_slots < world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]: # #
 658         ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
 659                if not world_db["Things"][id]["carried"]
 660                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 661                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
 662         if len(ids):
 663             highest_id = 0
 664             for id in ids:
 665                 if id > highest_id:
 666                     highest_id = id
 667             world_db["Things"][highest_id]["carried"] = True
 668             t["T_CARRIES"].append(highest_id)
 669             if t == world_db["Things"][0]:
 670                 strong_write(io_db["file_out"], "LOG You pick up an object.\n")
 671         elif t == world_db["Things"][0]:
 672             err = "You try to pick up an object, but there is none."
 673             strong_write(io_db["file_out"], "LOG " + err + "\n")
 674     elif t == world_db["Things"][0]: # #
 675         strong_write(io_db["file_out"], "LOG Can't pick up object: " + # #
 676                                         "No storage room to carry more.\n") # #
 677
 678
 679 def actor_drop(t):
 680     """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
 681     # TODO: Handle case where T_ARGUMENT matches nothing.
 682     if len(t["T_CARRIES"]):
 683         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 684         t["T_CARRIES"].remove(id)
 685         world_db["Things"][id]["carried"] = False
 686         if t == world_db["Things"][0]:
 687             strong_write(io_db["file_out"], "LOG You drop an object.\n")
 688     elif t == world_db["Things"][0]:
 689         err = "You try to drop an object, but you own none."
 690         strong_write(io_db["file_out"], "LOG " + err + "\n")
 691
 692
 693 def actor_use(t):
 694     """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
 695     # TODO: Handle case where T_ARGUMENT matches nothing.
 696     if len(t["T_CARRIES"]):
 697         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 698         type = world_db["Things"][id]["T_TYPE"]
 699         if world_db["ThingTypes"][type]["TT_CONSUMABLE"]:
 700             t["T_CARRIES"].remove(id)
 701             del world_db["Things"][id]
 702             t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 703             if t == world_db["Things"][0]:
 704                 strong_write(io_db["file_out"],
 705                              "LOG You consume this object.\n")
 706         elif t == world_db["Things"][0]:
 707             strong_write(io_db["file_out"],
 708                          "LOG You try to use this object, but fail.\n")
 709     elif t == world_db["Things"][0]:
 710         strong_write(io_db["file_out"],
 711                      "LOG You try to use an object, but you own none.\n")
 712
 713
 714 def thingproliferation(t):
 715     """To chance of 1/TT_PROLIFERATE, create t offspring in neighbor cell.
 716
 717     Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be
 718     passable and not be inhabited by a Thing of the same type, or, if Thing is
 719     animate, any other animate Thing. If there are several map cell candidates,
 720     one is selected randomly.
 721     """
 722     def test_cell(t, y, x):
 723         if "." == chr(world_db["MAP"][(y * world_db["MAP_LENGTH"]) + x]):
 724             for id in [id for id in world_db["Things"]
 725                        if y == world_db["Things"][id]["T_POSY"]
 726                        if x == world_db["Things"][id]["T_POSX"]
 727                        if (t["T_TYPE"] == world_db["Things"][id]["T_TYPE"])
 728                        or (t["T_LIFEPOINTS"] and
 729                            world_db["Things"][id]["T_LIFEPOINTS"])]:
 730                 return False
 731             return True
 732         return False
 733     prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
 734     if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
 735         candidates = []
 736         for dir in [directions_db[key] for key in directions_db]:
 737             mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
 738             if mv_result[0] and test_cell(t, mv_result[1], mv_result[2]):
 739                 candidates.append((mv_result[1], mv_result[2]))
 740         if len(candidates):
 741             i = rand.next() % len(candidates)
 742             id = id_setter(-1, "Things")
 743             newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
 744             world_db["Things"][id] = newT
 745
 746
 747 def try_healing(t):
 748     """Grow t's HP to a 1/32 chance if < HP max, satiation > 0, and waiting.
 749
 750     On success, decrease satiation score by 32.
 751     """
 752     if t["T_SATIATION"] > 0 \
 753        and t["T_LIFEPOINTS"] < \
 754            world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] \
 755        and 0 == (rand.next() % 31) \
 756        and t["T_COMMAND"] == [id for id in world_db["ThingActions"]
 757                               if world_db["ThingActions"][id]["TA_NAME"] ==
 758                                  "wait"][0]:
 759         t["T_LIFEPOINTS"] += 1
 760         t["T_SATIATION"] -= 32
 761         if t == world_db["Things"][0]:
 762             strong_write(io_db["file_out"], "LOG You heal.\n")
 763
 764
 765 def hunger(t):
 766     """Decrement t's satiation,dependent on it trigger lifepoint dec chance."""
 767     if t["T_SATIATION"] > -32768:
 768         t["T_SATIATION"] -= 1
 769     testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
 770     if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
 771         raise RuntimeError("A thing that should not hunger is hungering.")
 772     stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
 773     if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
 774         if t == world_db["Things"][0]:
 775             strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
 776         decrement_lifepoints(t)
 777
 778
 779 def get_dir_to_target(t, filter):
 780     """Try to set T_COMMAND/T_ARGUMENT for move to "filter"-determined target.
 781
 782     The path-wise nearest target is chosen, via the shortest available path.
 783     Target must not be t. On succcess, return positive value, else False.
 784     Filters:
 785     "a": Thing in FOV is below a certain distance, animate, but of ThingType
 786          that is not t's, and starts out weaker than t is; build path as
 787          avoiding things of t's ThingType
 788     "f": neighbor cell (not inhabited by any animate Thing) further away from
 789          animate Thing not further than x steps away and in FOV and of a
 790          ThingType that is not t's, and starts out stronger or as strong as t
 791          is currently; or (cornered), if no such flight cell, but Thing of
 792          above criteria is too near,1 a cell closer to it, or, if less near,
 793          just wait
 794     "c": Thing in memorized map is consumable
 795     "s": memory map cell with greatest-reachable degree of unexploredness
 796     """
 797
 798     def zero_score_map_where_char_on_memdepthmap(c):
 799         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 800         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 801         #           if t["T_MEMDEPTHMAP"][i] == mem_depth_c[0]]:
 802         #     set_map_score(i, 0)
 803         map = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 804         if libpr.zero_score_map_where_char_on_memdepthmap(c, map):
 805             raise RuntimeError("No score map allocated for "
 806                                "zero_score_map_where_char_on_memdepthmap().")
 807
 808     def set_map_score(pos, score):
 809         test = libpr.set_map_score(pos, score)
 810         if test:
 811             raise RuntimeError("No score map allocated for set_map_score().")
 812
 813     def get_map_score(pos):
 814         result = libpr.get_map_score(pos)
 815         if result < 0:
 816             raise RuntimeError("No score map allocated for get_map_score().")
 817         return result
 818
 819     def seeing_thing():
 820         if t["fovmap"] and ("a" == filter or "f" == filter):
 821             for id in world_db["Things"]:
 822                 Thing = world_db["Things"][id]
 823                 if Thing != t and Thing["T_LIFEPOINTS"] and \
 824                    t["T_TYPE"] != Thing["T_TYPE"] and \
 825                    'v' == chr(t["fovmap"][(Thing["T_POSY"]
 826                                           * world_db["MAP_LENGTH"])
 827                                           + Thing["T_POSX"]]):
 828                     ThingType = world_db["ThingTypes"][Thing["T_TYPE"]]
 829                     if ("f" == filter and ThingType["TT_LIFEPOINTS"] >=
 830                                           t["T_LIFEPOINTS"]) \
 831                        or ("a" == filter and ThingType["TT_LIFEPOINTS"] <
 832                                              t["T_LIFEPOINTS"]):
 833                         return True
 834         elif t["T_MEMMAP"] and "c" == filter:
 835             for mt in t["T_MEMTHING"]:
 836                 if ' ' != chr(t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
 837                                          + mt[2]]) \
 838                    and world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]:
 839                     return True
 840         return False
 841
 842     def set_cells_passable_on_memmap_to_65534_on_scoremap():
 843         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 844         # ord_dot = ord(".")
 845         # memmap = t["T_MEMMAP"]
 846         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 847         #            if ord_dot == memmap[i]]:
 848         #     set_map_score(i, 65534) # i.e. 65535-1
 849         map = c_pointer_to_bytearray(t["T_MEMMAP"])
 850         if libpr.set_cells_passable_on_memmap_to_65534_on_scoremap(map):
 851             raise RuntimeError("No score map allocated for "
 852                         "set_cells_passable_on_memmap_to_65534_on_scoremap().")
 853
 854     def init_score_map():
 855         test = libpr.init_score_map()
 856         if test:
 857             raise RuntimeError("Malloc error in init_score_map().")
 858         ord_v = ord("v")
 859         ord_blank = ord(" ")
 860         set_cells_passable_on_memmap_to_65534_on_scoremap()
 861         if "a" == filter:
 862             for id in world_db["Things"]:
 863                 Thing = world_db["Things"][id]
 864                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 865                       + Thing["T_POSX"]
 866                 if t != Thing and Thing["T_LIFEPOINTS"] and \
 867                    t["T_TYPE"] != Thing["T_TYPE"] and \
 868                    ord_v == t["fovmap"][pos] and \
 869                    t["T_LIFEPOINTS"] > \
 870                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 871                     set_map_score(pos, 0)
 872                 elif t["T_TYPE"] == Thing["T_TYPE"]:
 873                     set_map_score(pos, 65535)
 874         elif "f" == filter:
 875             for id in [id for id in world_db["Things"]
 876                        if world_db["Things"][id]["T_LIFEPOINTS"]]:
 877                 Thing = world_db["Things"][id]
 878                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 879                       + Thing["T_POSX"]
 880                 if t["T_TYPE"] != Thing["T_TYPE"] and \
 881                    ord_v == t["fovmap"][pos] and \
 882                    t["T_LIFEPOINTS"] <= \
 883                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 884                     set_map_score(pos, 0)
 885         elif "c" == filter:
 886             for mt in [mt for mt in t["T_MEMTHING"]
 887                        if ord_blank != t["T_MEMMAP"][mt[1]
 888                                                     * world_db["MAP_LENGTH"]
 889                                                     + mt[2]]
 890                        if world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]]:
 891                 set_map_score(mt[1] * world_db["MAP_LENGTH"] + mt[2], 0)
 892         elif "s" == filter:
 893             zero_score_map_where_char_on_memdepthmap(mem_depth_c[0])
 894
 895     def rand_target_dir(neighbors, cmp, dirs):
 896         candidates = []
 897         n_candidates = 0
 898         for i in range(len(dirs)):
 899             if cmp == neighbors[i]:
 900                 candidates.append(dirs[i])
 901                 n_candidates += 1
 902         return candidates[rand.next() % n_candidates] if n_candidates else 0
 903
 904     def get_neighbor_scores(dirs, eye_pos):
 905         scores = []
 906         if libpr.ready_neighbor_scores(eye_pos):
 907             raise RuntimeError("No score map allocated for " +
 908                                "ready_neighbor_scores.()")
 909         for i in range(len(dirs)):
 910             scores.append(libpr.get_neighbor_score(i))
 911         return scores
 912
 913     def get_dir_from_neighbors():
 914         dir_to_target = False
 915         dirs = "edcxsw"
 916         eye_pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
 917         neighbors = get_neighbor_scores(dirs, eye_pos)
 918         if "f" == filter:
 919             inhabited = [world_db["Things"][id]["T_POSY"]
 920                          * world_db["MAP_LENGTH"]
 921                          + world_db["Things"][id]["T_POSX"]
 922                          for id in world_db["Things"]
 923                          if world_db["Things"][id]["T_LIFEPOINTS"]]
 924             for i in range(len(dirs)):
 925                 mv_yx_in_dir_legal(dirs[i], t["T_POSY"], t["T_POSX"])
 926                 pos_cmp = libpr.result_y() * world_db["MAP_LENGTH"] \
 927                           + libpr.result_x()
 928                 for pos in [pos for pos in inhabited if pos == pos_cmp]:
 929                     neighbors[i] = 65535
 930                     break
 931         minmax_start = 0 if "f" == filter else 65535 - 1
 932         minmax_neighbor = minmax_start
 933         for i in range(len(dirs)):
 934             if ("f" == filter and get_map_score(eye_pos) < neighbors[i] and
 935                 minmax_neighbor < neighbors[i] and 65535 != neighbors[i]) \
 936                or ("f" != filter and minmax_neighbor > neighbors[i]):
 937                 minmax_neighbor = neighbors[i]
 938         if minmax_neighbor != minmax_start:
 939             dir_to_target = rand_target_dir(neighbors, minmax_neighbor, dirs)
 940         if "f" == filter:
 941             if not dir_to_target:
 942                 if 1 == get_map_score(eye_pos):
 943                     dir_to_target = rand_target_dir(neighbors, 0, dirs)
 944                 elif 3 >= get_map_score(eye_pos):
 945                     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 946                                       if
 947                                       world_db["ThingActions"][id]["TA_NAME"]
 948                                          == "wait"][0]
 949                     return 1
 950             elif dir_to_target and 3 < get_map_score(eye_pos):
 951                 dir_to_target = 0
 952         elif "a" == filter and 10 <= get_map_score(eye_pos):
 953             dir_to_target = 0
 954         return dir_to_target
 955
 956     dir_to_target = False
 957     mem_depth_c = b' '
 958     run_i = 9 + 1 if "s" == filter else 1
 959     while run_i and not dir_to_target and ("s" == filter or seeing_thing()):
 960         run_i -= 1
 961         init_score_map()
 962         mem_depth_c = b'9' if b' ' == mem_depth_c \
 963                            else bytes([mem_depth_c[0] - 1])
 964         if libpr.dijkstra_map():
 965             raise RuntimeError("No score map allocated for dijkstra_map().")
 966         dir_to_target = get_dir_from_neighbors()
 967         libpr.free_score_map()
 968         if dir_to_target and str == type(dir_to_target):
 969             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 970                               if world_db["ThingActions"][id]["TA_NAME"]
 971                                  == "move"][0]
 972             t["T_ARGUMENT"] = ord(dir_to_target)
 973     return dir_to_target
 974
 975
 976 def standing_on_consumable(t):
 977     """Return True/False whether t is standing on a consumable."""
 978     for id in [id for id in world_db["Things"] if world_db["Things"][id] != t
 979                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 980                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]
 981                if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
 982                           ["TT_CONSUMABLE"]]:
 983         return True
 984     return False
 985
 986
 987 def get_inventory_slot_to_consume(t):
 988     """Return slot Id of strongest consumable in t's inventory, else -1."""
 989     cmp_consumability = 0
 990     selection = -1
 991     i = 0
 992     for id in t["T_CARRIES"]:
 993         type = world_db["Things"][id]["T_TYPE"]
 994         if world_db["ThingTypes"][type]["TT_CONSUMABLE"] > cmp_consumability:
 995             cmp_consumability = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 996             selection = i
 997         i += 1
 998     return selection
 999
1000
1001 def ai(t):
1002     """Determine next command/argment for actor t via AI algorithms.
1003
1004     AI will look for, and move towards, enemies (animate Things not of their
1005     own ThingType); if they see none, they will consume consumables in their
1006     inventory; if there are none, they will pick up what they stand on if they
1007     stand on consumables; if they stand on none, they will move towards the
1008     next consumable they see or remember on the map; if they see or remember
1009     none, they will explore parts of the map unseen since ever or for at least
1010     one turn; if there is nothing to explore, they will simply wait.
1011     """
1012     # 7DRL add: Don't pick up or search things when inventory is full.
1013     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1014                       if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
1015     if not get_dir_to_target(t, "f"):
1016         sel = get_inventory_slot_to_consume(t)
1017         if -1 != sel:
1018             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1019                               if world_db["ThingActions"][id]["TA_NAME"]
1020                                  == "use"][0]
1021             t["T_ARGUMENT"] = sel
1022         elif standing_on_consumable(t) \
1023              and (len(t["T_CARRIES"]) < # #
1024                  world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]): # #
1025             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1026                               if world_db["ThingActions"][id]["TA_NAME"]
1027                                  == "pick_up"][0]
1028         elif (not
1029               (len(t["T_CARRIES"]) < # #
1030                 world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"] # #
1031                and get_dir_to_target(t, "c"))) and \
1032              (not get_dir_to_target(t, "a")):
1033             get_dir_to_target(t, "s")
1034
1035
1036 def turn_over():
1037     """Run game world and its inhabitants until new player input expected."""
1038     id = 0
1039     whilebreaker = False
1040     while world_db["Things"][0]["T_LIFEPOINTS"]:
1041         for id in [id for id in world_db["Things"]]:  # Only what's from start!
1042             if not id in world_db["Things"] or \
1043                world_db["Things"][id]["carried"]:   # May have been consumed or
1044                 continue                            # picked up during turn …
1045             Thing = world_db["Things"][id]
1046             if Thing["T_LIFEPOINTS"]:
1047                 if not Thing["T_COMMAND"]:
1048                     update_map_memory(Thing)
1049                     if 0 == id:
1050                         whilebreaker = True
1051                         break
1052                     ai(Thing)
1053                 try_healing(Thing)
1054                 Thing["T_PROGRESS"] += 1
1055                 taid = [a for a in world_db["ThingActions"]
1056                           if a == Thing["T_COMMAND"]][0]
1057                 ThingAction = world_db["ThingActions"][taid]
1058                 if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
1059                     eval("actor_" + ThingAction["TA_NAME"])(Thing)
1060                     Thing["T_COMMAND"] = 0
1061                     Thing["T_PROGRESS"] = 0
1062                 hunger(Thing)
1063             thingproliferation(Thing)
1064         if whilebreaker:
1065             break
1066         world_db["TURN"] += 1
1067
1068
1069 def new_Thing(type, pos=(0, 0)):
1070     """Return Thing of type T_TYPE, with fovmap if alive and world active."""
1071     thing = {
1072         "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
1073         "T_ARGUMENT": 0,
1074         "T_PROGRESS": 0,
1075         "T_SATIATION": 0,
1076         "T_COMMAND": 0,
1077         "T_TYPE": type,
1078         "T_POSY": pos[0],
1079         "T_POSX": pos[1],
1080         "T_CARRIES": [],
1081         "carried": False,
1082         "T_MEMTHING": [],
1083         "T_MEMMAP": False,
1084         "T_MEMDEPTHMAP": False,
1085         "fovmap": False
1086     }
1087     if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
1088         build_fov_map(thing)
1089     return thing
1090
1091
1092 def id_setter(id, category, id_store=False, start_at_1=False):
1093     """Set ID of object of category to manipulate ID unused? Create new one.
1094
1095     The ID is stored as id_store.id (if id_store is set). If the integer of the
1096     input is valid (if start_at_1, >= 0, else >= -1), but <0 or (if start_at_1)
1097     <1, calculate new ID: lowest unused ID >=0 or (if start_at_1) >= 1. None is
1098     always returned when no new object is created, otherwise the new object's
1099     ID.
1100     """
1101     min = 0 if start_at_1 else -1
1102     if str == type(id):
1103         id = integer_test(id, min)
1104     if None != id:
1105         if id in world_db[category]:
1106             if id_store:
1107                 id_store.id = id
1108             return None
1109         else:
1110             if (start_at_1 and 0 == id) \
1111                or ((not start_at_1) and (id < 0)):
1112                 id = 0 if start_at_1 else -1
1113                 while 1:
1114                     id = id + 1
1115                     if id not in world_db[category]:
1116                         break
1117             if id_store:
1118                 id_store.id = id
1119     return id
1120
1121
1122 def command_ping():
1123     """Send PONG line to server output file."""
1124     strong_write(io_db["file_out"], "PONG\n")
1125
1126
1127 def command_quit():
1128     """Abort server process."""
1129     save_world()
1130     atomic_write(io_db["path_record"], io_db["record_chunk"], do_append=True)
1131     raise SystemExit("received QUIT command")
1132
1133
1134 def command_thingshere(str_y, str_x):
1135     """Write to out file list of Things known to player at coordinate y, x."""
1136     if world_db["WORLD_ACTIVE"]:
1137         y = integer_test(str_y, 0, 255)
1138         x = integer_test(str_x, 0, 255)
1139         length = world_db["MAP_LENGTH"]
1140         if None != y and None != x and y < length and x < length:
1141             pos = (y * world_db["MAP_LENGTH"]) + x
1142             strong_write(io_db["file_out"], "THINGS_HERE START\n")
1143             if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
1144                 for id in world_db["Things"]:
1145                     if y == world_db["Things"][id]["T_POSY"] \
1146                        and x == world_db["Things"][id]["T_POSX"] \
1147                        and not world_db["Things"][id]["carried"]:
1148                         type = world_db["Things"][id]["T_TYPE"]
1149                         name = world_db["ThingTypes"][type]["TT_NAME"]
1150                         strong_write(io_db["file_out"], name + "\n")
1151             else:
1152                 for mt in world_db["Things"][0]["T_MEMTHING"]:
1153                     if y == mt[1] and x == mt[2]:
1154                         name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
1155                         strong_write(io_db["file_out"], name + "\n")
1156             strong_write(io_db["file_out"], "THINGS_HERE END\n")
1157         else:
1158             print("Ignoring: Invalid map coordinates.")
1159     else:
1160         print("Ignoring: Command only works on existing worlds.")
1161
1162
1163 def play_commander(action, args=False):
1164     """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
1165
1166     T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
1167     """
1168
1169     def set_command():
1170         id = [x for x in world_db["ThingActions"]
1171                 if world_db["ThingActions"][x]["TA_NAME"] == action][0]
1172         world_db["Things"][0]["T_COMMAND"] = id
1173         turn_over()
1174
1175     def set_command_and_argument_int(str_arg):
1176         val = integer_test(str_arg, 0, 255)
1177         if None != val:
1178             world_db["Things"][0]["T_ARGUMENT"] = val
1179             set_command()
1180
1181     def set_command_and_argument_movestring(str_arg):
1182         if str_arg in directions_db:
1183             world_db["Things"][0]["T_ARGUMENT"] = ord(directions_db[str_arg])
1184             set_command()
1185         else:
1186             print("Ignoring: Argument must be valid direction string.")
1187
1188     if action == "move":
1189         return set_command_and_argument_movestring
1190     elif args:
1191         return set_command_and_argument_int
1192     else:
1193         return set_command
1194
1195
1196 def command_seedrandomness(seed_string):
1197     """Set rand seed to int(seed_string)."""
1198     val = integer_test(seed_string, 0, 4294967295)
1199     if None != val:
1200         rand.seed = val
1201
1202
1203 def command_seedmap(seed_string):
1204     """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
1205     setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
1206     remake_map()
1207
1208
1209 def command_makeworld(seed_string):
1210     """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
1211
1212     Seed rand with seed, fill it into world_db["SEED_MAP"]. Do more only with a
1213     "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType of
1214     TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
1215     and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
1216     according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
1217     of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
1218     other. Init player's memory map. Write "NEW_WORLD" line to out file.
1219     """
1220
1221     def free_pos():
1222         i = 0
1223         while 1:
1224             err = "Space to put thing on too hard to find. Map too small?"
1225             while 1:
1226                 y = rand.next() % world_db["MAP_LENGTH"]
1227                 x = rand.next() % world_db["MAP_LENGTH"]
1228                 if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
1229                     break
1230                 i += 1
1231                 if i == 65535:
1232                     raise SystemExit(err)
1233             # Replica of C code, wrongly ignores animatedness of new Thing.
1234             pos_clear = (0 == len([id for id in world_db["Things"]
1235                                    if world_db["Things"][id]["T_LIFEPOINTS"]
1236                                    if world_db["Things"][id]["T_POSY"] == y
1237                                    if world_db["Things"][id]["T_POSX"] == x]))
1238             if pos_clear:
1239                 break
1240         return (y, x)
1241
1242     val = integer_test(seed_string, 0, 4294967295)
1243     if None == val:
1244         return
1245     rand.seed = val
1246     world_db["SEED_MAP"] = val
1247     player_will_be_generated = False
1248     playertype = world_db["PLAYER_TYPE"]
1249     for ThingType in world_db["ThingTypes"]:
1250         if playertype == ThingType:
1251             if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
1252                 player_will_be_generated = True
1253             break
1254     if not player_will_be_generated:
1255         print("Ignoring beyond SEED_MAP: " +
1256               "No player type with start number >0 defined.")
1257         return
1258     wait_action = False
1259     for ThingAction in world_db["ThingActions"]:
1260         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1261             wait_action = True
1262     if not wait_action:
1263         print("Ignoring beyond SEED_MAP: " +
1264               "No thing action with name 'wait' defined.")
1265         return
1266     world_db["Things"] = {}
1267     remake_map()
1268     world_db["WORLD_ACTIVE"] = 1
1269     world_db["TURN"] = 1
1270     for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
1271         id = id_setter(-1, "Things")
1272         world_db["Things"][id] = new_Thing(playertype, free_pos())
1273     update_map_memory(world_db["Things"][0])
1274     for type in world_db["ThingTypes"]:
1275         for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
1276             if type != playertype:
1277                 id = id_setter(-1, "Things")
1278                 world_db["Things"][id] = new_Thing(type, free_pos())
1279     strong_write(io_db["file_out"], "NEW_WORLD\n")
1280
1281
1282 def command_maplength(maplength_string):
1283     """Redefine map length. Invalidate map, therefore lose all things on it."""
1284     val = integer_test(maplength_string, 1, 256)
1285     if None != val:
1286         world_db["MAP_LENGTH"] = val
1287         set_world_inactive()
1288         world_db["Things"] = {}
1289         libpr.set_maplength(val)
1290
1291
1292 def command_worldactive(worldactive_string):
1293     """Toggle world_db["WORLD_ACTIVE"] if possible.
1294
1295     An active world can always be set inactive. An inactive world can only be
1296     set active with a "wait" ThingAction, and a player Thing (of ID 0). On
1297     activation, rebuild all Things' FOVs, and the player's map memory.
1298     """
1299     # In original version, map existence was also tested (unnecessarily?).
1300     val = integer_test(worldactive_string, 0, 1)
1301     if val:
1302         if 0 != world_db["WORLD_ACTIVE"]:
1303             if 0 == val:
1304                 set_world_inactive()
1305             else:
1306                 print("World already active.")
1307         elif 0 == world_db["WORLD_ACTIVE"]:
1308             wait_exists = False
1309             for ThingAction in world_db["ThingActions"]:
1310                 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1311                     wait_exists = True
1312                     break
1313             player_exists = False
1314             for Thing in world_db["Things"]:
1315                 if 0 == Thing:
1316                     player_exists = True
1317                     break
1318             if wait_exists and player_exists:
1319                 for id in world_db["Things"]:
1320                     if world_db["Things"][id]["T_LIFEPOINTS"]:
1321                         build_fov_map(world_db["Things"][id])
1322                         if 0 == id:
1323                             update_map_memory(world_db["Things"][id], False)
1324                 world_db["WORLD_ACTIVE"] = 1
1325
1326
1327 def test_for_id_maker(object, category):
1328     """Return decorator testing for object having "id" attribute."""
1329     def decorator(f):
1330         def helper(*args):
1331             if hasattr(object, "id"):
1332                 f(*args)
1333             else:
1334                 print("Ignoring: No " + category +
1335                       " defined to manipulate yet.")
1336         return helper
1337     return decorator
1338
1339
1340 def command_tid(id_string):
1341     """Set ID of Thing to manipulate. ID unused? Create new one.
1342
1343     Default new Thing's type to the first available ThingType, others: zero.
1344     """
1345     id = id_setter(id_string, "Things", command_tid)
1346     if None != id:
1347         if world_db["ThingTypes"] == {}:
1348             print("Ignoring: No ThingType to settle new Thing in.")
1349             return
1350         type = list(world_db["ThingTypes"].keys())[0]
1351         world_db["Things"][id] = new_Thing(type)
1352
1353
1354 test_Thing_id = test_for_id_maker(command_tid, "Thing")
1355
1356
1357 @test_Thing_id
1358 def command_tcommand(str_int):
1359     """Set T_COMMAND of selected Thing."""
1360     val = integer_test(str_int, 0)
1361     if None != val:
1362         if 0 == val or val in world_db["ThingActions"]:
1363             world_db["Things"][command_tid.id]["T_COMMAND"] = val
1364         else:
1365             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
1366
1367
1368 @test_Thing_id
1369 def command_ttype(str_int):
1370     """Set T_TYPE of selected Thing."""
1371     val = integer_test(str_int, 0)
1372     if None != val:
1373         if val in world_db["ThingTypes"]:
1374             world_db["Things"][command_tid.id]["T_TYPE"] = val
1375         else:
1376             print("Ignoring: ThingType ID belongs to no known ThingType.")
1377
1378
1379 @test_Thing_id
1380 def command_tcarries(str_int):
1381     """Append int(str_int) to T_CARRIES of selected Thing.
1382
1383     The ID int(str_int) must not be of the selected Thing, and must belong to a
1384     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
1385     """
1386     val = integer_test(str_int, 0)
1387     if None != val:
1388         if val == command_tid.id:
1389             print("Ignoring: Thing cannot carry itself.")
1390         elif val in world_db["Things"] \
1391              and not world_db["Things"][val]["carried"]:
1392             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
1393             world_db["Things"][val]["carried"] = True
1394         else:
1395             print("Ignoring: Thing not available for carrying.")
1396     # Note that the whole carrying structure is different from the C version:
1397     # Carried-ness is marked by a "carried" flag, not by Things containing
1398     # Things internally.
1399
1400
1401 @test_Thing_id
1402 def command_tmemthing(str_t, str_y, str_x):
1403     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
1404
1405     The type must fit to an existing ThingType, and the position into the map.
1406     """
1407     type = integer_test(str_t, 0)
1408     posy = integer_test(str_y, 0, 255)
1409     posx = integer_test(str_x, 0, 255)
1410     if None != type and None != posy and None != posx:
1411         if type not in world_db["ThingTypes"] \
1412            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
1413             print("Ignoring: Illegal value for thing type or position.")
1414         else:
1415             memthing = (type, posy, posx)
1416             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
1417
1418
1419 def setter_map(maptype):
1420     """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
1421
1422     If Thing has no map of maptype yet, initialize it with ' ' bytes first.
1423     """
1424     @test_Thing_id
1425     def helper(str_int, mapline):
1426         val = integer_test(str_int, 0, 255)
1427         if None != val:
1428             if val >= world_db["MAP_LENGTH"]:
1429                 print("Illegal value for map line number.")
1430             elif len(mapline) != world_db["MAP_LENGTH"]:
1431                 print("Map line length is unequal map width.")
1432             else:
1433                 length = world_db["MAP_LENGTH"]
1434                 map = None
1435                 if not world_db["Things"][command_tid.id][maptype]:
1436                     map = bytearray(b' ' * (length ** 2))
1437                 else:
1438                     map = world_db["Things"][command_tid.id][maptype]
1439                 map[val * length:(val * length) + length] = mapline.encode()
1440                 world_db["Things"][command_tid.id][maptype] = map
1441     return helper
1442
1443
1444 def setter_tpos(axis):
1445     """Generate setter for T_POSX or  T_POSY of selected Thing.
1446
1447     If world is active, rebuilds animate things' fovmap, player's memory map.
1448     """
1449     @test_Thing_id
1450     def helper(str_int):
1451         val = integer_test(str_int, 0, 255)
1452         if None != val:
1453             if val < world_db["MAP_LENGTH"]:
1454                 world_db["Things"][command_tid.id]["T_POS" + axis] = val
1455                 if world_db["WORLD_ACTIVE"] \
1456                    and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
1457                     build_fov_map(world_db["Things"][command_tid.id])
1458                     if 0 == command_tid.id:
1459                         update_map_memory(world_db["Things"][command_tid.id])
1460             else:
1461                 print("Ignoring: Position is outside of map.")
1462     return helper
1463
1464
1465 def command_ttid(id_string):
1466     """Set ID of ThingType to manipulate. ID unused? Create new one.
1467
1468     Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
1469     """
1470     id = id_setter(id_string, "ThingTypes", command_ttid)
1471     if None != id:
1472         world_db["ThingTypes"][id] = {
1473             "TT_NAME": "(none)",
1474             "TT_CONSUMABLE": 0,
1475             "TT_LIFEPOINTS": 0,
1476             "TT_PROLIFERATE": 0,
1477             "TT_START_NUMBER": 0,
1478             "TT_STORAGE": 0, # #
1479             "TT_SYMBOL": "?",
1480             "TT_CORPSE_ID": id
1481         }
1482
1483
1484 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
1485
1486
1487 @test_ThingType_id
1488 def command_ttname(name):
1489     """Set TT_NAME of selected ThingType."""
1490     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
1491
1492
1493 @test_ThingType_id
1494 def command_ttsymbol(char):
1495     """Set TT_SYMBOL of selected ThingType. """
1496     if 1 == len(char):
1497         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
1498     else:
1499         print("Ignoring: Argument must be single character.")
1500
1501
1502 @test_ThingType_id
1503 def command_ttcorpseid(str_int):
1504     """Set TT_CORPSE_ID of selected ThingType."""
1505     val = integer_test(str_int, 0)
1506     if None != val:
1507         if val in world_db["ThingTypes"]:
1508             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
1509         else:
1510             print("Ignoring: Corpse ID belongs to no known ThignType.")
1511
1512
1513 def command_taid(id_string):
1514     """Set ID of ThingAction to manipulate. ID unused? Create new one.
1515
1516     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
1517     """
1518     id = id_setter(id_string, "ThingActions", command_taid, True)
1519     if None != id:
1520         world_db["ThingActions"][id] = {
1521             "TA_EFFORT": 1,
1522             "TA_NAME": "wait"
1523         }
1524
1525
1526 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
1527
1528
1529 @test_ThingAction_id
1530 def command_taname(name):
1531     """Set TA_NAME of selected ThingAction.
1532
1533     The name must match a valid thing action function. If after the name
1534     setting no ThingAction with name "wait" remains, call set_world_inactive().
1535     """
1536     if name == "wait" or name == "move" or name == "use" or name == "drop" \
1537        or name == "pick_up":
1538         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
1539         if 1 == world_db["WORLD_ACTIVE"]:
1540             wait_defined = False
1541             for id in world_db["ThingActions"]:
1542                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
1543                     wait_defined = True
1544                     break
1545             if not wait_defined:
1546                 set_world_inactive()
1547     else:
1548         print("Ignoring: Invalid action name.")
1549     # In contrast to the original,naming won't map a function to a ThingAction.
1550
1551
1552 def command_ai():
1553     """Call ai() on player Thing, then turn_over()."""
1554     ai(world_db["Things"][0])
1555     turn_over()
1556
1557
1558 """Commands database.
1559
1560 Map command start tokens to ([0]) number of expected command arguments, ([1])
1561 the command's meta-ness (i.e. is it to be written to the record file, is it to
1562 be ignored in replay mode if read from server input file), and ([2]) a function
1563 to be called on it.
1564 """
1565 commands_db = {
1566     "QUIT": (0, True, command_quit),
1567     "PING": (0, True, command_ping),
1568     "THINGS_HERE": (2, True, command_thingshere),
1569     "MAKE_WORLD": (1, False, command_makeworld),
1570     "SEED_MAP": (1, False, command_seedmap),
1571     "SEED_RANDOMNESS": (1, False, command_seedrandomness),
1572     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1573     "GOD_MOOD": (1, False, setter(None, "GOD_MOOD", -32768, 32767)),  # #
1574     "GOD_FAVOR": (1, False, setter(None, "GOD_FAVOR", -32768, 32767)),  # #
1575     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0)),
1576     "MAP_LENGTH": (1, False, command_maplength),
1577     "WORLD_ACTIVE": (1, False, command_worldactive),
1578     "TA_ID": (1, False, command_taid),
1579     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1580     "TA_NAME": (1, False, command_taname),
1581     "TT_ID": (1, False, command_ttid),
1582     "TT_NAME": (1, False, command_ttname),
1583     "TT_SYMBOL": (1, False, command_ttsymbol),
1584     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1585     "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1586                                        0, 65535)),
1587     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1588                                          0, 255)),
1589     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1590                                         0, 255)),
1591     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1592     "TT_STORAGE": (1, False, setter("ThingType", "TT_STORAGE", 0, 255)), # #
1593     "T_ID": (1, False, command_tid),
1594     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1595     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1596     "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1597     "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1598     "T_COMMAND": (1, False, command_tcommand),
1599     "T_TYPE": (1, False, command_ttype),
1600     "T_CARRIES": (1, False, command_tcarries),
1601     "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1602     "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1603     "T_MEMTHING": (3, False, command_tmemthing),
1604     "T_POSY": (1, False, setter_tpos("Y")),
1605     "T_POSX": (1, False, setter_tpos("X")),
1606     "wait": (0, False, play_commander("wait")),
1607     "move": (1, False, play_commander("move")),
1608     "pick_up": (0, False, play_commander("pick_up")),
1609     "drop": (1, False, play_commander("drop", True)),
1610     "use": (1, False, play_commander("use", True)),
1611     "ai": (0, False, command_ai)
1612 }
1613
1614
1615 """World state database. With sane default values. (Randomness is in rand.)"""
1616 world_db = {
1617     "TURN": 0,
1618     "MAP_LENGTH": 64,
1619     "SEED_MAP": 0,
1620     "PLAYER_TYPE": 0,
1621     "WORLD_ACTIVE": 0,
1622     "GOD_MOOD": 0,  # #
1623     "GOD_FAVOR": 0,  # #
1624     "ThingActions": {},
1625     "ThingTypes": {},
1626     "Things": {}
1627 }
1628
1629 """Mapping of direction names to internal direction chars."""
1630 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
1631                  "west": "s", "north-west": "w", "north-east": "e"}
1632
1633 """File IO database."""
1634 io_db = {
1635     "path_save": "save",
1636     "path_record": "record_save",
1637     "path_worldconf": "confserver/world",
1638     "path_server": "server/",
1639     "path_in": "server/in",
1640     "path_out": "server/out",
1641     "path_worldstate": "server/worldstate",
1642     "tmp_suffix": "_tmp",
1643     "kicked_by_rival": False,
1644     "worldstate_updateable": False
1645 }
1646
1647
1648 try:
1649     libpr = prep_library()
1650     rand = RandomnessIO()
1651     opts = parse_command_line_arguments()
1652     if opts.savefile:
1653         io_db["path_save"] = opts.savefile
1654         io_db["path_record"] = "record_" + opts.savefile
1655     setup_server_io()
1656     if opts.verbose:
1657         io_db["verbose"] = True
1658     if None != opts.replay:
1659         replay_game()
1660     else:
1661         play_game()
1662 except SystemExit as exit:
1663     print("ABORTING: " + exit.args[0])
1664 except:
1665     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
1666     raise
1667 finally:
1668     cleanup_server_io()