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     # # 7DRL: also decrements God's mood; deaths heavily so
 586     # # 7DRL: return 1 if death, else 0
 587     t["T_LIFEPOINTS"] -= 1
 588     world_db["GOD_MOOD"] -= 1  # #
 589     if 0 == t["T_LIFEPOINTS"]:
 590         sadness = world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]  # #
 591         world_db["GOD_MOOD"] -= sadness  # #
 592         t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
 593         if world_db["Things"][0] == t:
 594             t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 595             strong_write(io_db["file_out"], "LOG You die.\n")
 596         else:
 597             t["fovmap"] = False
 598             t["T_MEMMAP"] = False
 599             t["T_MEMDEPTHMAP"] = False
 600             t["T_MEMTHING"] = []
 601         return sadness  # #
 602     return 0  # #
 603
 604
 605 def mv_yx_in_dir_legal(dir, y, x):
 606     """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
 607     dir_c = dir.encode("ascii")[0]
 608     test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
 609     if -1 == test:
 610         raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
 611     return (test, libpr.result_y(), libpr.result_x())
 612
 613
 614 def actor_wait(t):
 615     """Make t do nothing (but loudly, if player avatar)."""
 616     if t == world_db["Things"][0]:
 617         strong_write(io_db["file_out"], "LOG You wait.\n")
 618
 619
 620 def actor_move(t):
 621     """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
 622     # # 7DRL: Player wounding (worse: killing) others will lower God's favor.
 623     passable = False
 624     move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
 625                                      t["T_POSY"], t["T_POSX"])
 626     if 1 == move_result[0]:
 627         pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
 628         passable = "." == chr(world_db["MAP"][pos])
 629         hitted = [id for id in world_db["Things"]
 630                   if world_db["Things"][id] != t
 631                   if world_db["Things"][id]["T_LIFEPOINTS"]
 632                   if world_db["Things"][id]["T_POSY"] == move_result[1]
 633                   if world_db["Things"][id]["T_POSX"] == move_result[2]]
 634         if len(hitted):
 635             hit_id = hitted[0]
 636             if t == world_db["Things"][0]:
 637                 hitted_type = world_db["Things"][hit_id]["T_TYPE"]
 638                 hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
 639                 strong_write(io_db["file_out"], "LOG You wound " + hitted_name
 640                                                 + ".\n")
 641                 world_db["GOD_FAVOR"] -= 1  # #
 642             elif 0 == hit_id:
 643                 hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
 644                 strong_write(io_db["file_out"], "LOG " + hitter_name +
 645                                                 " wounds you.\n")
 646             test = decrement_lifepoints(world_db["Things"][hit_id])  # #
 647             if test and t == world_db["Things"][0]:  # #
 648                 world_db["GOD_FAVOR"] -= test  # #
 649             return
 650     dir = [dir for dir in directions_db
 651            if directions_db[dir] == chr(t["T_ARGUMENT"])][0]
 652     if passable:
 653         t["T_POSY"] = move_result[1]
 654         t["T_POSX"] = move_result[2]
 655         for id in t["T_CARRIES"]:
 656             world_db["Things"][id]["T_POSY"] = move_result[1]
 657             world_db["Things"][id]["T_POSX"] = move_result[2]
 658         build_fov_map(t)
 659         if t == world_db["Things"][0]:
 660             strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
 661     elif t == world_db["Things"][0]:
 662         strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
 663
 664
 665 def actor_pick_up(t):
 666     """Make t pick up (topmost?) Thing from ground into inventory."""
 667     # Topmostness is actually not defined so far. Picks Thing with highest ID.
 668     used_slots = len(t["T_CARRIES"]) # #
 669     if used_slots < world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]: # #
 670         ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
 671                if not world_db["Things"][id]["carried"]
 672                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 673                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
 674         if len(ids):
 675             highest_id = 0
 676             for id in ids:
 677                 if id > highest_id:
 678                     highest_id = id
 679             world_db["Things"][highest_id]["carried"] = True
 680             t["T_CARRIES"].append(highest_id)
 681             if t == world_db["Things"][0]:
 682                 strong_write(io_db["file_out"], "LOG You pick up an object.\n")
 683         elif t == world_db["Things"][0]:
 684             err = "You try to pick up an object, but there is none."
 685             strong_write(io_db["file_out"], "LOG " + err + "\n")
 686     elif t == world_db["Things"][0]: # #
 687         strong_write(io_db["file_out"], "LOG Can't pick up object: " + # #
 688                                         "No storage room to carry more.\n") # #
 689
 690
 691 def actor_drop(t):
 692     """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
 693     # TODO: Handle case where T_ARGUMENT matches nothing.
 694     if len(t["T_CARRIES"]):
 695         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 696         t["T_CARRIES"].remove(id)
 697         world_db["Things"][id]["carried"] = False
 698         if t == world_db["Things"][0]:
 699             strong_write(io_db["file_out"], "LOG You drop an object.\n")
 700     elif t == world_db["Things"][0]:
 701         err = "You try to drop an object, but you own none."
 702         strong_write(io_db["file_out"], "LOG " + err + "\n")
 703
 704
 705 def actor_use(t):
 706     """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
 707     # TODO: Handle case where T_ARGUMENT matches nothing.
 708     if len(t["T_CARRIES"]):
 709         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 710         type = world_db["Things"][id]["T_TYPE"]
 711         if world_db["ThingTypes"][type]["TT_CONSUMABLE"]:
 712             t["T_CARRIES"].remove(id)
 713             del world_db["Things"][id]
 714             t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 715             if t == world_db["Things"][0]:
 716                 strong_write(io_db["file_out"],
 717                              "LOG You consume this object.\n")
 718         elif t == world_db["Things"][0]:
 719             strong_write(io_db["file_out"],
 720                          "LOG You try to use this object, but fail.\n")
 721     elif t == world_db["Things"][0]:
 722         strong_write(io_db["file_out"],
 723                      "LOG You try to use an object, but you own none.\n")
 724
 725
 726 def thingproliferation(t):
 727     """To chance of 1/TT_PROLIFERATE, create t offspring in neighbor cell.
 728
 729     Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be
 730     passable and not be inhabited by a Thing of the same type, or, if Thing is
 731     animate, any other animate Thing. If there are several map cell candidates,
 732     one is selected randomly.
 733     """
 734     # # 7DRL: success increments God's mood
 735     def test_cell(t, y, x):
 736         if "." == chr(world_db["MAP"][(y * world_db["MAP_LENGTH"]) + x]):
 737             for id in [id for id in world_db["Things"]
 738                        if y == world_db["Things"][id]["T_POSY"]
 739                        if x == world_db["Things"][id]["T_POSX"]
 740                        if (t["T_TYPE"] == world_db["Things"][id]["T_TYPE"])
 741                        or (t["T_LIFEPOINTS"] and
 742                            world_db["Things"][id]["T_LIFEPOINTS"])]:
 743                 return False
 744             return True
 745         return False
 746     prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
 747     if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
 748         candidates = []
 749         for dir in [directions_db[key] for key in directions_db]:
 750             mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
 751             if mv_result[0] and test_cell(t, mv_result[1], mv_result[2]):
 752                 candidates.append((mv_result[1], mv_result[2]))
 753         if len(candidates):
 754             i = rand.next() % len(candidates)
 755             id = id_setter(-1, "Things")
 756             newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
 757             world_db["Things"][id] = newT
 758             world_db["GOD_MOOD"] += 1  # #
 759
 760
 761 def try_healing(t):
 762     """Grow t's HP to a 1/32 chance if < HP max, satiation > 0, and waiting.
 763
 764     On success, decrease satiation score by 32.
 765     """
 766     # # 7DRL: Successful heals increment God's mood.
 767     if t["T_SATIATION"] > 0 \
 768        and t["T_LIFEPOINTS"] < \
 769            world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] \
 770        and 0 == (rand.next() % 31) \
 771        and t["T_COMMAND"] == [id for id in world_db["ThingActions"]
 772                               if world_db["ThingActions"][id]["TA_NAME"] ==
 773                                  "wait"][0]:
 774         t["T_LIFEPOINTS"] += 1
 775         world_db["GOD_MOOD"] += 1  # #
 776         t["T_SATIATION"] -= 32
 777         if t == world_db["Things"][0]:
 778             strong_write(io_db["file_out"], "LOG You heal.\n")
 779
 780
 781 def hunger(t):
 782     """Decrement t's satiation,dependent on it trigger lifepoint dec chance."""
 783     if t["T_SATIATION"] > -32768:
 784         t["T_SATIATION"] -= 1
 785     testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
 786     if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
 787         raise RuntimeError("A thing that should not hunger is hungering.")
 788     stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
 789     if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
 790         if t == world_db["Things"][0]:
 791             strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
 792         decrement_lifepoints(t)
 793
 794
 795 def get_dir_to_target(t, filter):
 796     """Try to set T_COMMAND/T_ARGUMENT for move to "filter"-determined target.
 797
 798     The path-wise nearest target is chosen, via the shortest available path.
 799     Target must not be t. On succcess, return positive value, else False.
 800     Filters:
 801     "a": Thing in FOV is below a certain distance, animate, but of ThingType
 802          that is not t's, and starts out weaker than t is; build path as
 803          avoiding things of t's ThingType
 804     "f": neighbor cell (not inhabited by any animate Thing) further away from
 805          animate Thing not further than x steps away and in FOV and of a
 806          ThingType that is not t's, and starts out stronger or as strong as t
 807          is currently; or (cornered), if no such flight cell, but Thing of
 808          above criteria is too near,1 a cell closer to it, or, if less near,
 809          just wait
 810     "c": Thing in memorized map is consumable
 811     "s": memory map cell with greatest-reachable degree of unexploredness
 812     """
 813
 814     def zero_score_map_where_char_on_memdepthmap(c):
 815         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 816         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 817         #           if t["T_MEMDEPTHMAP"][i] == mem_depth_c[0]]:
 818         #     set_map_score(i, 0)
 819         map = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 820         if libpr.zero_score_map_where_char_on_memdepthmap(c, map):
 821             raise RuntimeError("No score map allocated for "
 822                                "zero_score_map_where_char_on_memdepthmap().")
 823
 824     def set_map_score(pos, score):
 825         test = libpr.set_map_score(pos, score)
 826         if test:
 827             raise RuntimeError("No score map allocated for set_map_score().")
 828
 829     def get_map_score(pos):
 830         result = libpr.get_map_score(pos)
 831         if result < 0:
 832             raise RuntimeError("No score map allocated for get_map_score().")
 833         return result
 834
 835     def seeing_thing():
 836         if t["fovmap"] and ("a" == filter or "f" == filter):
 837             for id in world_db["Things"]:
 838                 Thing = world_db["Things"][id]
 839                 if Thing != t and Thing["T_LIFEPOINTS"] and \
 840                    t["T_TYPE"] != Thing["T_TYPE"] and \
 841                    'v' == chr(t["fovmap"][(Thing["T_POSY"]
 842                                           * world_db["MAP_LENGTH"])
 843                                           + Thing["T_POSX"]]):
 844                     ThingType = world_db["ThingTypes"][Thing["T_TYPE"]]
 845                     if ("f" == filter and ThingType["TT_LIFEPOINTS"] >=
 846                                           t["T_LIFEPOINTS"]) \
 847                        or ("a" == filter and ThingType["TT_LIFEPOINTS"] <
 848                                              t["T_LIFEPOINTS"]):
 849                         return True
 850         elif t["T_MEMMAP"] and "c" == filter:
 851             for mt in t["T_MEMTHING"]:
 852                 if ' ' != chr(t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
 853                                          + mt[2]]) \
 854                    and world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]:
 855                     return True
 856         return False
 857
 858     def set_cells_passable_on_memmap_to_65534_on_scoremap():
 859         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 860         # ord_dot = ord(".")
 861         # memmap = t["T_MEMMAP"]
 862         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 863         #            if ord_dot == memmap[i]]:
 864         #     set_map_score(i, 65534) # i.e. 65535-1
 865         map = c_pointer_to_bytearray(t["T_MEMMAP"])
 866         if libpr.set_cells_passable_on_memmap_to_65534_on_scoremap(map):
 867             raise RuntimeError("No score map allocated for "
 868                         "set_cells_passable_on_memmap_to_65534_on_scoremap().")
 869
 870     def init_score_map():
 871         test = libpr.init_score_map()
 872         if test:
 873             raise RuntimeError("Malloc error in init_score_map().")
 874         ord_v = ord("v")
 875         ord_blank = ord(" ")
 876         set_cells_passable_on_memmap_to_65534_on_scoremap()
 877         if "a" == filter:
 878             for id in world_db["Things"]:
 879                 Thing = world_db["Things"][id]
 880                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 881                       + Thing["T_POSX"]
 882                 if t != Thing and Thing["T_LIFEPOINTS"] and \
 883                    t["T_TYPE"] != Thing["T_TYPE"] and \
 884                    ord_v == t["fovmap"][pos] and \
 885                    t["T_LIFEPOINTS"] > \
 886                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 887                     set_map_score(pos, 0)
 888                 elif t["T_TYPE"] == Thing["T_TYPE"]:
 889                     set_map_score(pos, 65535)
 890         elif "f" == filter:
 891             for id in [id for id in world_db["Things"]
 892                        if world_db["Things"][id]["T_LIFEPOINTS"]]:
 893                 Thing = world_db["Things"][id]
 894                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 895                       + Thing["T_POSX"]
 896                 if t["T_TYPE"] != Thing["T_TYPE"] and \
 897                    ord_v == t["fovmap"][pos] and \
 898                    t["T_LIFEPOINTS"] <= \
 899                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 900                     set_map_score(pos, 0)
 901         elif "c" == filter:
 902             for mt in [mt for mt in t["T_MEMTHING"]
 903                        if ord_blank != t["T_MEMMAP"][mt[1]
 904                                                     * world_db["MAP_LENGTH"]
 905                                                     + mt[2]]
 906                        if world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]]:
 907                 set_map_score(mt[1] * world_db["MAP_LENGTH"] + mt[2], 0)
 908         elif "s" == filter:
 909             zero_score_map_where_char_on_memdepthmap(mem_depth_c[0])
 910
 911     def rand_target_dir(neighbors, cmp, dirs):
 912         candidates = []
 913         n_candidates = 0
 914         for i in range(len(dirs)):
 915             if cmp == neighbors[i]:
 916                 candidates.append(dirs[i])
 917                 n_candidates += 1
 918         return candidates[rand.next() % n_candidates] if n_candidates else 0
 919
 920     def get_neighbor_scores(dirs, eye_pos):
 921         scores = []
 922         if libpr.ready_neighbor_scores(eye_pos):
 923             raise RuntimeError("No score map allocated for " +
 924                                "ready_neighbor_scores.()")
 925         for i in range(len(dirs)):
 926             scores.append(libpr.get_neighbor_score(i))
 927         return scores
 928
 929     def get_dir_from_neighbors():
 930         dir_to_target = False
 931         dirs = "edcxsw"
 932         eye_pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
 933         neighbors = get_neighbor_scores(dirs, eye_pos)
 934         if "f" == filter:
 935             inhabited = [world_db["Things"][id]["T_POSY"]
 936                          * world_db["MAP_LENGTH"]
 937                          + world_db["Things"][id]["T_POSX"]
 938                          for id in world_db["Things"]
 939                          if world_db["Things"][id]["T_LIFEPOINTS"]]
 940             for i in range(len(dirs)):
 941                 mv_yx_in_dir_legal(dirs[i], t["T_POSY"], t["T_POSX"])
 942                 pos_cmp = libpr.result_y() * world_db["MAP_LENGTH"] \
 943                           + libpr.result_x()
 944                 for pos in [pos for pos in inhabited if pos == pos_cmp]:
 945                     neighbors[i] = 65535
 946                     break
 947         minmax_start = 0 if "f" == filter else 65535 - 1
 948         minmax_neighbor = minmax_start
 949         for i in range(len(dirs)):
 950             if ("f" == filter and get_map_score(eye_pos) < neighbors[i] and
 951                 minmax_neighbor < neighbors[i] and 65535 != neighbors[i]) \
 952                or ("f" != filter and minmax_neighbor > neighbors[i]):
 953                 minmax_neighbor = neighbors[i]
 954         if minmax_neighbor != minmax_start:
 955             dir_to_target = rand_target_dir(neighbors, minmax_neighbor, dirs)
 956         if "f" == filter:
 957             if not dir_to_target:
 958                 if 1 == get_map_score(eye_pos):
 959                     dir_to_target = rand_target_dir(neighbors, 0, dirs)
 960                 elif 3 >= get_map_score(eye_pos):
 961                     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 962                                       if
 963                                       world_db["ThingActions"][id]["TA_NAME"]
 964                                          == "wait"][0]
 965                     return 1
 966             elif dir_to_target and 3 < get_map_score(eye_pos):
 967                 dir_to_target = 0
 968         elif "a" == filter and 10 <= get_map_score(eye_pos):
 969             dir_to_target = 0
 970         return dir_to_target
 971
 972     dir_to_target = False
 973     mem_depth_c = b' '
 974     run_i = 9 + 1 if "s" == filter else 1
 975     while run_i and not dir_to_target and ("s" == filter or seeing_thing()):
 976         run_i -= 1
 977         init_score_map()
 978         mem_depth_c = b'9' if b' ' == mem_depth_c \
 979                            else bytes([mem_depth_c[0] - 1])
 980         if libpr.dijkstra_map():
 981             raise RuntimeError("No score map allocated for dijkstra_map().")
 982         dir_to_target = get_dir_from_neighbors()
 983         libpr.free_score_map()
 984         if dir_to_target and str == type(dir_to_target):
 985             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 986                               if world_db["ThingActions"][id]["TA_NAME"]
 987                                  == "move"][0]
 988             t["T_ARGUMENT"] = ord(dir_to_target)
 989     return dir_to_target
 990
 991
 992 def standing_on_consumable(t):
 993     """Return True/False whether t is standing on a consumable."""
 994     for id in [id for id in world_db["Things"] if world_db["Things"][id] != t
 995                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 996                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]
 997                if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
 998                           ["TT_CONSUMABLE"]]:
 999         return True
1000     return False
1001
1002
1003 def get_inventory_slot_to_consume(t):
1004     """Return slot Id of strongest consumable in t's inventory, else -1."""
1005     cmp_consumability = 0
1006     selection = -1
1007     i = 0
1008     for id in t["T_CARRIES"]:
1009         type = world_db["Things"][id]["T_TYPE"]
1010         if world_db["ThingTypes"][type]["TT_CONSUMABLE"] > cmp_consumability:
1011             cmp_consumability = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
1012             selection = i
1013         i += 1
1014     return selection
1015
1016
1017 def ai(t):
1018     """Determine next command/argment for actor t via AI algorithms.
1019
1020     AI will look for, and move towards, enemies (animate Things not of their
1021     own ThingType); if they see none, they will consume consumables in their
1022     inventory; if there are none, they will pick up what they stand on if they
1023     stand on consumables; if they stand on none, they will move towards the
1024     next consumable they see or remember on the map; if they see or remember
1025     none, they will explore parts of the map unseen since ever or for at least
1026     one turn; if there is nothing to explore, they will simply wait.
1027     """
1028     # # 7DRL add: Don't pick up or search things when inventory is full.
1029     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1030                       if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
1031     if not get_dir_to_target(t, "f"):
1032         sel = get_inventory_slot_to_consume(t)
1033         if -1 != sel:
1034             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1035                               if world_db["ThingActions"][id]["TA_NAME"]
1036                                  == "use"][0]
1037             t["T_ARGUMENT"] = sel
1038         elif standing_on_consumable(t) \
1039              and (len(t["T_CARRIES"]) < # #
1040                  world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]): # #
1041             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1042                               if world_db["ThingActions"][id]["TA_NAME"]
1043                                  == "pick_up"][0]
1044         elif (not
1045               (len(t["T_CARRIES"]) < # #
1046                 world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"] # #
1047                and get_dir_to_target(t, "c"))) and \
1048              (not get_dir_to_target(t, "a")):
1049             get_dir_to_target(t, "s")
1050
1051
1052 def turn_over():
1053     """Run game world and its inhabitants until new player input expected."""
1054     id = 0
1055     whilebreaker = False
1056     while world_db["Things"][0]["T_LIFEPOINTS"]:
1057         for id in [id for id in world_db["Things"]]:  # Only what's from start!
1058             if not id in world_db["Things"] or \
1059                world_db["Things"][id]["carried"]:   # May have been consumed or
1060                 continue                            # picked up during turn …
1061             Thing = world_db["Things"][id]
1062             if Thing["T_LIFEPOINTS"]:
1063                 if not Thing["T_COMMAND"]:
1064                     update_map_memory(Thing)
1065                     if 0 == id:
1066                         whilebreaker = True
1067                         break
1068                     ai(Thing)
1069                 try_healing(Thing)
1070                 Thing["T_PROGRESS"] += 1
1071                 taid = [a for a in world_db["ThingActions"]
1072                           if a == Thing["T_COMMAND"]][0]
1073                 ThingAction = world_db["ThingActions"][taid]
1074                 if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
1075                     eval("actor_" + ThingAction["TA_NAME"])(Thing)
1076                     Thing["T_COMMAND"] = 0
1077                     Thing["T_PROGRESS"] = 0
1078                 hunger(Thing)
1079             thingproliferation(Thing)
1080         if whilebreaker:
1081             break
1082         world_db["TURN"] += 1
1083
1084
1085 def new_Thing(type, pos=(0, 0)):
1086     """Return Thing of type T_TYPE, with fovmap if alive and world active."""
1087     thing = {
1088         "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
1089         "T_ARGUMENT": 0,
1090         "T_PROGRESS": 0,
1091         "T_SATIATION": 0,
1092         "T_COMMAND": 0,
1093         "T_TYPE": type,
1094         "T_POSY": pos[0],
1095         "T_POSX": pos[1],
1096         "T_CARRIES": [],
1097         "carried": False,
1098         "T_MEMTHING": [],
1099         "T_MEMMAP": False,
1100         "T_MEMDEPTHMAP": False,
1101         "fovmap": False
1102     }
1103     if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
1104         build_fov_map(thing)
1105     return thing
1106
1107
1108 def id_setter(id, category, id_store=False, start_at_1=False):
1109     """Set ID of object of category to manipulate ID unused? Create new one.
1110
1111     The ID is stored as id_store.id (if id_store is set). If the integer of the
1112     input is valid (if start_at_1, >= 0, else >= -1), but <0 or (if start_at_1)
1113     <1, calculate new ID: lowest unused ID >=0 or (if start_at_1) >= 1. None is
1114     always returned when no new object is created, otherwise the new object's
1115     ID.
1116     """
1117     min = 0 if start_at_1 else -1
1118     if str == type(id):
1119         id = integer_test(id, min)
1120     if None != id:
1121         if id in world_db[category]:
1122             if id_store:
1123                 id_store.id = id
1124             return None
1125         else:
1126             if (start_at_1 and 0 == id) \
1127                or ((not start_at_1) and (id < 0)):
1128                 id = 0 if start_at_1 else -1
1129                 while 1:
1130                     id = id + 1
1131                     if id not in world_db[category]:
1132                         break
1133             if id_store:
1134                 id_store.id = id
1135     return id
1136
1137
1138 def command_ping():
1139     """Send PONG line to server output file."""
1140     strong_write(io_db["file_out"], "PONG\n")
1141
1142
1143 def command_quit():
1144     """Abort server process."""
1145     if None == opts.replay:
1146         save_world()
1147         atomic_write(io_db["path_record"], io_db["record_chunk"], do_append=True)
1148     raise SystemExit("received QUIT command")
1149
1150
1151 def command_thingshere(str_y, str_x):
1152     """Write to out file list of Things known to player at coordinate y, x."""
1153     if world_db["WORLD_ACTIVE"]:
1154         y = integer_test(str_y, 0, 255)
1155         x = integer_test(str_x, 0, 255)
1156         length = world_db["MAP_LENGTH"]
1157         if None != y and None != x and y < length and x < length:
1158             pos = (y * world_db["MAP_LENGTH"]) + x
1159             strong_write(io_db["file_out"], "THINGS_HERE START\n")
1160             if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
1161                 for id in world_db["Things"]:
1162                     if y == world_db["Things"][id]["T_POSY"] \
1163                        and x == world_db["Things"][id]["T_POSX"] \
1164                        and not world_db["Things"][id]["carried"]:
1165                         type = world_db["Things"][id]["T_TYPE"]
1166                         name = world_db["ThingTypes"][type]["TT_NAME"]
1167                         strong_write(io_db["file_out"], name + "\n")
1168             else:
1169                 for mt in world_db["Things"][0]["T_MEMTHING"]:
1170                     if y == mt[1] and x == mt[2]:
1171                         name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
1172                         strong_write(io_db["file_out"], name + "\n")
1173             strong_write(io_db["file_out"], "THINGS_HERE END\n")
1174         else:
1175             print("Ignoring: Invalid map coordinates.")
1176     else:
1177         print("Ignoring: Command only works on existing worlds.")
1178
1179
1180 def play_commander(action, args=False):
1181     """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
1182
1183     T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
1184     """
1185
1186     def set_command():
1187         id = [x for x in world_db["ThingActions"]
1188                 if world_db["ThingActions"][x]["TA_NAME"] == action][0]
1189         world_db["Things"][0]["T_COMMAND"] = id
1190         turn_over()
1191
1192     def set_command_and_argument_int(str_arg):
1193         val = integer_test(str_arg, 0, 255)
1194         if None != val:
1195             world_db["Things"][0]["T_ARGUMENT"] = val
1196             set_command()
1197
1198     def set_command_and_argument_movestring(str_arg):
1199         if str_arg in directions_db:
1200             world_db["Things"][0]["T_ARGUMENT"] = ord(directions_db[str_arg])
1201             set_command()
1202         else:
1203             print("Ignoring: Argument must be valid direction string.")
1204
1205     if action == "move":
1206         return set_command_and_argument_movestring
1207     elif args:
1208         return set_command_and_argument_int
1209     else:
1210         return set_command
1211
1212
1213 def command_seedrandomness(seed_string):
1214     """Set rand seed to int(seed_string)."""
1215     val = integer_test(seed_string, 0, 4294967295)
1216     if None != val:
1217         rand.seed = val
1218
1219
1220 def command_seedmap(seed_string):
1221     """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
1222     setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
1223     remake_map()
1224
1225
1226 def command_makeworld(seed_string):
1227     """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
1228
1229     Seed rand with seed, fill it into world_db["SEED_MAP"]. Do more only with a
1230     "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType of
1231     TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
1232     and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
1233     according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
1234     of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
1235     other. Init player's memory map. Write "NEW_WORLD" line to out file.
1236     """
1237
1238     def free_pos():
1239         i = 0
1240         while 1:
1241             err = "Space to put thing on too hard to find. Map too small?"
1242             while 1:
1243                 y = rand.next() % world_db["MAP_LENGTH"]
1244                 x = rand.next() % world_db["MAP_LENGTH"]
1245                 if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
1246                     break
1247                 i += 1
1248                 if i == 65535:
1249                     raise SystemExit(err)
1250             # Replica of C code, wrongly ignores animatedness of new Thing.
1251             pos_clear = (0 == len([id for id in world_db["Things"]
1252                                    if world_db["Things"][id]["T_LIFEPOINTS"]
1253                                    if world_db["Things"][id]["T_POSY"] == y
1254                                    if world_db["Things"][id]["T_POSX"] == x]))
1255             if pos_clear:
1256                 break
1257         return (y, x)
1258
1259     val = integer_test(seed_string, 0, 4294967295)
1260     if None == val:
1261         return
1262     rand.seed = val
1263     world_db["SEED_MAP"] = val
1264     player_will_be_generated = False
1265     playertype = world_db["PLAYER_TYPE"]
1266     for ThingType in world_db["ThingTypes"]:
1267         if playertype == ThingType:
1268             if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
1269                 player_will_be_generated = True
1270             break
1271     if not player_will_be_generated:
1272         print("Ignoring beyond SEED_MAP: " +
1273               "No player type with start number >0 defined.")
1274         return
1275     wait_action = False
1276     for ThingAction in world_db["ThingActions"]:
1277         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1278             wait_action = True
1279     if not wait_action:
1280         print("Ignoring beyond SEED_MAP: " +
1281               "No thing action with name 'wait' defined.")
1282         return
1283     world_db["Things"] = {}
1284     remake_map()
1285     world_db["WORLD_ACTIVE"] = 1
1286     world_db["TURN"] = 1
1287     for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
1288         id = id_setter(-1, "Things")
1289         world_db["Things"][id] = new_Thing(playertype, free_pos())
1290     update_map_memory(world_db["Things"][0])
1291     for type in world_db["ThingTypes"]:
1292         for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
1293             if type != playertype:
1294                 id = id_setter(-1, "Things")
1295                 world_db["Things"][id] = new_Thing(type, free_pos())
1296     strong_write(io_db["file_out"], "NEW_WORLD\n")
1297
1298
1299 def command_maplength(maplength_string):
1300     """Redefine map length. Invalidate map, therefore lose all things on it."""
1301     val = integer_test(maplength_string, 1, 256)
1302     if None != val:
1303         world_db["MAP_LENGTH"] = val
1304         set_world_inactive()
1305         world_db["Things"] = {}
1306         libpr.set_maplength(val)
1307
1308
1309 def command_worldactive(worldactive_string):
1310     """Toggle world_db["WORLD_ACTIVE"] if possible.
1311
1312     An active world can always be set inactive. An inactive world can only be
1313     set active with a "wait" ThingAction, and a player Thing (of ID 0). On
1314     activation, rebuild all Things' FOVs, and the player's map memory.
1315     """
1316     # In original version, map existence was also tested (unnecessarily?).
1317     val = integer_test(worldactive_string, 0, 1)
1318     if val:
1319         if 0 != world_db["WORLD_ACTIVE"]:
1320             if 0 == val:
1321                 set_world_inactive()
1322             else:
1323                 print("World already active.")
1324         elif 0 == world_db["WORLD_ACTIVE"]:
1325             wait_exists = False
1326             for ThingAction in world_db["ThingActions"]:
1327                 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1328                     wait_exists = True
1329                     break
1330             player_exists = False
1331             for Thing in world_db["Things"]:
1332                 if 0 == Thing:
1333                     player_exists = True
1334                     break
1335             if wait_exists and player_exists:
1336                 for id in world_db["Things"]:
1337                     if world_db["Things"][id]["T_LIFEPOINTS"]:
1338                         build_fov_map(world_db["Things"][id])
1339                         if 0 == id:
1340                             update_map_memory(world_db["Things"][id], False)
1341                 world_db["WORLD_ACTIVE"] = 1
1342
1343
1344 def test_for_id_maker(object, category):
1345     """Return decorator testing for object having "id" attribute."""
1346     def decorator(f):
1347         def helper(*args):
1348             if hasattr(object, "id"):
1349                 f(*args)
1350             else:
1351                 print("Ignoring: No " + category +
1352                       " defined to manipulate yet.")
1353         return helper
1354     return decorator
1355
1356
1357 def command_tid(id_string):
1358     """Set ID of Thing to manipulate. ID unused? Create new one.
1359
1360     Default new Thing's type to the first available ThingType, others: zero.
1361     """
1362     id = id_setter(id_string, "Things", command_tid)
1363     if None != id:
1364         if world_db["ThingTypes"] == {}:
1365             print("Ignoring: No ThingType to settle new Thing in.")
1366             return
1367         type = list(world_db["ThingTypes"].keys())[0]
1368         world_db["Things"][id] = new_Thing(type)
1369
1370
1371 test_Thing_id = test_for_id_maker(command_tid, "Thing")
1372
1373
1374 @test_Thing_id
1375 def command_tcommand(str_int):
1376     """Set T_COMMAND of selected Thing."""
1377     val = integer_test(str_int, 0)
1378     if None != val:
1379         if 0 == val or val in world_db["ThingActions"]:
1380             world_db["Things"][command_tid.id]["T_COMMAND"] = val
1381         else:
1382             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
1383
1384
1385 @test_Thing_id
1386 def command_ttype(str_int):
1387     """Set T_TYPE of selected Thing."""
1388     val = integer_test(str_int, 0)
1389     if None != val:
1390         if val in world_db["ThingTypes"]:
1391             world_db["Things"][command_tid.id]["T_TYPE"] = val
1392         else:
1393             print("Ignoring: ThingType ID belongs to no known ThingType.")
1394
1395
1396 @test_Thing_id
1397 def command_tcarries(str_int):
1398     """Append int(str_int) to T_CARRIES of selected Thing.
1399
1400     The ID int(str_int) must not be of the selected Thing, and must belong to a
1401     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
1402     """
1403     val = integer_test(str_int, 0)
1404     if None != val:
1405         if val == command_tid.id:
1406             print("Ignoring: Thing cannot carry itself.")
1407         elif val in world_db["Things"] \
1408              and not world_db["Things"][val]["carried"]:
1409             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
1410             world_db["Things"][val]["carried"] = True
1411         else:
1412             print("Ignoring: Thing not available for carrying.")
1413     # Note that the whole carrying structure is different from the C version:
1414     # Carried-ness is marked by a "carried" flag, not by Things containing
1415     # Things internally.
1416
1417
1418 @test_Thing_id
1419 def command_tmemthing(str_t, str_y, str_x):
1420     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
1421
1422     The type must fit to an existing ThingType, and the position into the map.
1423     """
1424     type = integer_test(str_t, 0)
1425     posy = integer_test(str_y, 0, 255)
1426     posx = integer_test(str_x, 0, 255)
1427     if None != type and None != posy and None != posx:
1428         if type not in world_db["ThingTypes"] \
1429            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
1430             print("Ignoring: Illegal value for thing type or position.")
1431         else:
1432             memthing = (type, posy, posx)
1433             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
1434
1435
1436 def setter_map(maptype):
1437     """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
1438
1439     If Thing has no map of maptype yet, initialize it with ' ' bytes first.
1440     """
1441     @test_Thing_id
1442     def helper(str_int, mapline):
1443         val = integer_test(str_int, 0, 255)
1444         if None != val:
1445             if val >= world_db["MAP_LENGTH"]:
1446                 print("Illegal value for map line number.")
1447             elif len(mapline) != world_db["MAP_LENGTH"]:
1448                 print("Map line length is unequal map width.")
1449             else:
1450                 length = world_db["MAP_LENGTH"]
1451                 map = None
1452                 if not world_db["Things"][command_tid.id][maptype]:
1453                     map = bytearray(b' ' * (length ** 2))
1454                 else:
1455                     map = world_db["Things"][command_tid.id][maptype]
1456                 map[val * length:(val * length) + length] = mapline.encode()
1457                 world_db["Things"][command_tid.id][maptype] = map
1458     return helper
1459
1460
1461 def setter_tpos(axis):
1462     """Generate setter for T_POSX or  T_POSY of selected Thing.
1463
1464     If world is active, rebuilds animate things' fovmap, player's memory map.
1465     """
1466     @test_Thing_id
1467     def helper(str_int):
1468         val = integer_test(str_int, 0, 255)
1469         if None != val:
1470             if val < world_db["MAP_LENGTH"]:
1471                 world_db["Things"][command_tid.id]["T_POS" + axis] = val
1472                 if world_db["WORLD_ACTIVE"] \
1473                    and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
1474                     build_fov_map(world_db["Things"][command_tid.id])
1475                     if 0 == command_tid.id:
1476                         update_map_memory(world_db["Things"][command_tid.id])
1477             else:
1478                 print("Ignoring: Position is outside of map.")
1479     return helper
1480
1481
1482 def command_ttid(id_string):
1483     """Set ID of ThingType to manipulate. ID unused? Create new one.
1484
1485     Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
1486     """
1487     id = id_setter(id_string, "ThingTypes", command_ttid)
1488     if None != id:
1489         world_db["ThingTypes"][id] = {
1490             "TT_NAME": "(none)",
1491             "TT_CONSUMABLE": 0,
1492             "TT_LIFEPOINTS": 0,
1493             "TT_PROLIFERATE": 0,
1494             "TT_START_NUMBER": 0,
1495             "TT_STORAGE": 0, # #
1496             "TT_SYMBOL": "?",
1497             "TT_CORPSE_ID": id
1498         }
1499
1500
1501 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
1502
1503
1504 @test_ThingType_id
1505 def command_ttname(name):
1506     """Set TT_NAME of selected ThingType."""
1507     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
1508
1509
1510 @test_ThingType_id
1511 def command_ttsymbol(char):
1512     """Set TT_SYMBOL of selected ThingType. """
1513     if 1 == len(char):
1514         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
1515     else:
1516         print("Ignoring: Argument must be single character.")
1517
1518
1519 @test_ThingType_id
1520 def command_ttcorpseid(str_int):
1521     """Set TT_CORPSE_ID of selected ThingType."""
1522     val = integer_test(str_int, 0)
1523     if None != val:
1524         if val in world_db["ThingTypes"]:
1525             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
1526         else:
1527             print("Ignoring: Corpse ID belongs to no known ThignType.")
1528
1529
1530 def command_taid(id_string):
1531     """Set ID of ThingAction to manipulate. ID unused? Create new one.
1532
1533     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
1534     """
1535     id = id_setter(id_string, "ThingActions", command_taid, True)
1536     if None != id:
1537         world_db["ThingActions"][id] = {
1538             "TA_EFFORT": 1,
1539             "TA_NAME": "wait"
1540         }
1541
1542
1543 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
1544
1545
1546 @test_ThingAction_id
1547 def command_taname(name):
1548     """Set TA_NAME of selected ThingAction.
1549
1550     The name must match a valid thing action function. If after the name
1551     setting no ThingAction with name "wait" remains, call set_world_inactive().
1552     """
1553     if name == "wait" or name == "move" or name == "use" or name == "drop" \
1554        or name == "pick_up":
1555         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
1556         if 1 == world_db["WORLD_ACTIVE"]:
1557             wait_defined = False
1558             for id in world_db["ThingActions"]:
1559                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
1560                     wait_defined = True
1561                     break
1562             if not wait_defined:
1563                 set_world_inactive()
1564     else:
1565         print("Ignoring: Invalid action name.")
1566     # In contrast to the original,naming won't map a function to a ThingAction.
1567
1568
1569 def command_ai():
1570     """Call ai() on player Thing, then turn_over()."""
1571     ai(world_db["Things"][0])
1572     turn_over()
1573
1574
1575 """Commands database.
1576
1577 Map command start tokens to ([0]) number of expected command arguments, ([1])
1578 the command's meta-ness (i.e. is it to be written to the record file, is it to
1579 be ignored in replay mode if read from server input file), and ([2]) a function
1580 to be called on it.
1581 """
1582 commands_db = {
1583     "QUIT": (0, True, command_quit),
1584     "PING": (0, True, command_ping),
1585     "THINGS_HERE": (2, True, command_thingshere),
1586     "MAKE_WORLD": (1, False, command_makeworld),
1587     "SEED_MAP": (1, False, command_seedmap),
1588     "SEED_RANDOMNESS": (1, False, command_seedrandomness),
1589     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1590     "GOD_MOOD": (1, False, setter(None, "GOD_MOOD", -32768, 32767)),  # #
1591     "GOD_FAVOR": (1, False, setter(None, "GOD_FAVOR", -32768, 32767)),  # #
1592     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0)),
1593     "MAP_LENGTH": (1, False, command_maplength),
1594     "WORLD_ACTIVE": (1, False, command_worldactive),
1595     "TA_ID": (1, False, command_taid),
1596     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1597     "TA_NAME": (1, False, command_taname),
1598     "TT_ID": (1, False, command_ttid),
1599     "TT_NAME": (1, False, command_ttname),
1600     "TT_SYMBOL": (1, False, command_ttsymbol),
1601     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1602     "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1603                                        0, 65535)),
1604     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1605                                          0, 255)),
1606     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1607                                         0, 255)),
1608     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1609     "TT_STORAGE": (1, False, setter("ThingType", "TT_STORAGE", 0, 255)), # #
1610     "T_ID": (1, False, command_tid),
1611     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1612     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1613     "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1614     "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1615     "T_COMMAND": (1, False, command_tcommand),
1616     "T_TYPE": (1, False, command_ttype),
1617     "T_CARRIES": (1, False, command_tcarries),
1618     "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1619     "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1620     "T_MEMTHING": (3, False, command_tmemthing),
1621     "T_POSY": (1, False, setter_tpos("Y")),
1622     "T_POSX": (1, False, setter_tpos("X")),
1623     "wait": (0, False, play_commander("wait")),
1624     "move": (1, False, play_commander("move")),
1625     "pick_up": (0, False, play_commander("pick_up")),
1626     "drop": (1, False, play_commander("drop", True)),
1627     "use": (1, False, play_commander("use", True)),
1628     "ai": (0, False, command_ai)
1629 }
1630
1631
1632 """World state database. With sane default values. (Randomness is in rand.)"""
1633 world_db = {
1634     "TURN": 0,
1635     "MAP_LENGTH": 64,
1636     "SEED_MAP": 0,
1637     "PLAYER_TYPE": 0,
1638     "WORLD_ACTIVE": 0,
1639     "GOD_MOOD": 0,  # #
1640     "GOD_FAVOR": 0,  # #
1641     "ThingActions": {},
1642     "ThingTypes": {},
1643     "Things": {}
1644 }
1645
1646 """Mapping of direction names to internal direction chars."""
1647 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
1648                  "west": "s", "north-west": "w", "north-east": "e"}
1649
1650 """File IO database."""
1651 io_db = {
1652     "path_save": "save",
1653     "path_record": "record_save",
1654     "path_worldconf": "confserver/world",
1655     "path_server": "server/",
1656     "path_in": "server/in",
1657     "path_out": "server/out",
1658     "path_worldstate": "server/worldstate",
1659     "tmp_suffix": "_tmp",
1660     "kicked_by_rival": False,
1661     "worldstate_updateable": False
1662 }
1663
1664
1665 try:
1666     libpr = prep_library()
1667     rand = RandomnessIO()
1668     opts = parse_command_line_arguments()
1669     if opts.savefile:
1670         io_db["path_save"] = opts.savefile
1671         io_db["path_record"] = "record_" + opts.savefile
1672     setup_server_io()
1673     if opts.verbose:
1674         io_db["verbose"] = True
1675     if None != opts.replay:
1676         replay_game()
1677     else:
1678         play_game()
1679 except SystemExit as exit:
1680     print("ABORTING: " + exit.args[0])
1681 except:
1682     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
1683     raise
1684 finally:
1685     cleanup_server_io()