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 import math  # #
  16
  17
  18 class RandomnessIO:
  19     """"Interface to libplomrogue's pseudo-randomness generator."""
  20
  21     def set_seed(self, seed):
  22         libpr.seed_rrand(1, seed)
  23
  24     def get_seed(self):
  25         return libpr.seed_rrand(0, 0)
  26
  27     def next(self):
  28         return libpr.rrand()
  29
  30     seed = property(get_seed, set_seed)
  31
  32
  33 def prep_library():
  34     """Prepare ctypes library at ./libplomrogue.so"""
  35     libpath = ("./libplomrogue.so")
  36     if not os.access(libpath, os.F_OK):
  37         raise SystemExit("No library " + libpath + ", run ./redo first?")
  38     libpr = ctypes.cdll.LoadLibrary(libpath)
  39     libpr.seed_rrand.restype = ctypes.c_uint32
  40     return libpr
  41
  42
  43 def c_pointer_to_bytearray(ba):
  44     """Return C char * pointer to ba."""
  45     type = ctypes.c_char * len(ba)
  46     return type.from_buffer(ba)
  47
  48
  49 def strong_write(file, string):
  50     """Apply write(string), then flush()."""
  51     file.write(string)
  52     file.flush()
  53
  54
  55 def setup_server_io():
  56     """Fill IO files DB with proper file( path)s. Write process IO test string.
  57
  58     Ensure IO files directory at server/. Remove any old input file if found.
  59     Set up new input file for reading, and new output file for writing. Start
  60     output file with process hash line of format PID + " " + floated UNIX time
  61     (io_db["teststring"]). Raise SystemExit if file is found at path of either
  62     record or save file plus io_db["tmp_suffix"].
  63     """
  64     def detect_atomic_leftover(path, tmp_suffix):
  65         path_tmp = path + tmp_suffix
  66         msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
  67               "aborted previous attempt to write '" + path + "'. Aborting " \
  68              "until matter is resolved by removing it from its current path."
  69         if os.access(path_tmp, os.F_OK):
  70             raise SystemExit(msg)
  71     io_db["teststring"] = str(os.getpid()) + " " + str(time.time())
  72     io_db["save_wait"] = 0
  73     io_db["verbose"] = False
  74     io_db["record_chunk"] = ""
  75     os.makedirs(io_db["path_server"], exist_ok=True)
  76     io_db["file_out"] = open(io_db["path_out"], "w")
  77     strong_write(io_db["file_out"], io_db["teststring"] + "\n")
  78     if os.access(io_db["path_in"], os.F_OK):
  79         os.remove(io_db["path_in"])
  80     io_db["file_in"] = open(io_db["path_in"], "w")
  81     io_db["file_in"].close()
  82     io_db["file_in"] = open(io_db["path_in"], "r")
  83     detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
  84     detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
  85
  86
  87 def cleanup_server_io():
  88     """Close and (if io_db["kicked_by_rival"] false) remove files in io_db."""
  89     def helper(file_key, path_key):
  90         if file_key in io_db:
  91             io_db[file_key].close()
  92         if not io_db["kicked_by_rival"] \
  93            and os.access(io_db[path_key], os.F_OK):
  94             os.remove(io_db[path_key])
  95     helper("file_in", "path_in")
  96     helper("file_out", "path_out")
  97     helper("file_worldstate", "path_worldstate")
  98     if "file_record" in io_db:
  99         io_db["file_record"].close()
 100
 101
 102 def obey(command, prefix, replay=False, do_record=False):
 103     """Call function from commands_db mapped to command's first token.
 104
 105     Tokenize command string with shlex.split(comments=True). If replay is set,
 106     a non-meta command from the commands_db merely triggers obey() on the next
 107     command from the records file. If not, non-meta commands set
 108     io_db["worldstate_updateable"] to world_db["WORLD_EXISTS"], and, if
 109     do_record is set, are recorded to io_db["record_chunk"], and save_world()
 110     is called (and io_db["record_chunk"] written) if 15 seconds have passed
 111     since the last time it was called. The prefix string is inserted into the
 112     server's input message between its beginning 'input ' and ':'. All activity
 113     is preceded by a server_test() call. Commands that start with a lowercase
 114     letter are ignored when world_db["WORLD_ACTIVE"] is False/0.
 115     """
 116     server_test()
 117     if io_db["verbose"]:
 118         print("input " + prefix + ": " + command)
 119     try:
 120         tokens = shlex.split(command, comments=True)
 121     except ValueError as err:
 122         print("Can't tokenize command string: " + str(err) + ".")
 123         return
 124     if len(tokens) > 0 and tokens[0] in commands_db \
 125        and len(tokens) == commands_db[tokens[0]][0] + 1:
 126         if commands_db[tokens[0]][1]:
 127             commands_db[tokens[0]][2](*tokens[1:])
 128         elif tokens[0][0].islower() and not world_db["WORLD_ACTIVE"]:
 129             print("Ignoring lowercase-starting commands when world inactive.")
 130         elif replay:
 131             print("Due to replay mode, reading command as 'go on in record'.")
 132             line = io_db["file_record"].readline()
 133             if len(line) > 0:
 134                 obey(line.rstrip(), io_db["file_record"].prefix
 135                      + str(io_db["file_record"].line_n))
 136                 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 137             else:
 138                 print("Reached end of record file.")
 139         else:
 140             commands_db[tokens[0]][2](*tokens[1:])
 141             if do_record:
 142                 io_db["record_chunk"] += command + "\n"
 143                 if time.time() > io_db["save_wait"] + 15:
 144                     atomic_write(io_db["path_record"], io_db["record_chunk"],
 145                                  do_append=True)
 146                     if world_db["WORLD_ACTIVE"]:
 147                         save_world()
 148                     io_db["record_chunk"] = ""
 149                     io_db["save_wait"] = time.time()
 150             io_db["worldstate_updateable"] = world_db["WORLD_ACTIVE"]
 151     elif 0 != len(tokens):
 152         print("Invalid command/argument, or bad number of tokens.")
 153
 154
 155 def atomic_write(path, text, do_append=False, delete=True):
 156     """Atomic write of text to file at path, appended if do_append is set."""
 157     path_tmp = path + io_db["tmp_suffix"]
 158     mode = "w"
 159     if do_append:
 160         mode = "a"
 161         if os.access(path, os.F_OK):
 162             shutil.copyfile(path, path_tmp)
 163     file = open(path_tmp, mode)
 164     strong_write(file, text)
 165     file.close()
 166     if delete and os.access(path, os.F_OK):
 167         os.remove(path)
 168     os.rename(path_tmp, path)
 169
 170
 171 def save_world():
 172     """Save all commands needed to reconstruct current world state."""
 173
 174     def quote(string):
 175         string = string.replace("\u005C", '\u005C\u005C')
 176         return '"' + string.replace('"', '\u005C"') + '"'
 177
 178     def mapsetter(key):
 179         def helper(id=None):
 180             string = ""
 181             if key == "MAP" or world_db["Things"][id][key]:
 182                 map = world_db["MAP"] if key == "MAP" \
 183                                       else world_db["Things"][id][key]
 184                 length = world_db["MAP_LENGTH"]
 185                 for i in range(length):
 186                     line = map[i * length:(i * length) + length].decode()
 187                     string = string + key + " " + str(i) + " " + quote(line) \
 188                              + "\n"
 189             return string
 190         return helper
 191
 192     def memthing(id):
 193         string = ""
 194         for memthing in world_db["Things"][id]["T_MEMTHING"]:
 195             string = string + "T_MEMTHING " + str(memthing[0]) + " " + \
 196                      str(memthing[1]) + " " + str(memthing[2]) + "\n"
 197         return string
 198
 199     def helper(category, id_string, special_keys={}):
 200         string = ""
 201         for id in world_db[category]:
 202             string = string + id_string + " " + str(id) + "\n"
 203             for key in world_db[category][id]:
 204                 if not key in special_keys:
 205                     x = world_db[category][id][key]
 206                     argument = quote(x) if str == type(x) else str(x)
 207                     string = string + key + " " + argument + "\n"
 208                 elif special_keys[key]:
 209                     string = string + special_keys[key](id)
 210         return string
 211
 212     string = ""
 213     for key in world_db:
 214         if dict != type(world_db[key]) \
 215            and key != "MAP" and key != "WORLD_ACTIVE":
 216             string = string + key + " " + str(world_db[key]) + "\n"
 217     string = string + mapsetter("MAP")()
 218     string = string + helper("ThingActions", "TA_ID")
 219     string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
 220     for id in world_db["ThingTypes"]:
 221         string = string + "TT_ID " + str(id) + "\n" + "TT_CORPSE_ID " + \
 222                  str(world_db["ThingTypes"][id]["TT_CORPSE_ID"]) + "\n"
 223     string = string + helper("Things", "T_ID",
 224                              {"T_CARRIES": False, "carried": False,
 225                               "T_MEMMAP": mapsetter("T_MEMMAP"),
 226                               "T_MEMTHING": memthing, "fovmap": False,
 227                               "T_MEMDEPTHMAP": mapsetter("T_MEMDEPTHMAP")})
 228     for id in world_db["Things"]:
 229         if [] != world_db["Things"][id]["T_CARRIES"]:
 230             string = string + "T_ID " + str(id) + "\n"
 231             for carried_id in world_db["Things"][id]["T_CARRIES"]:
 232                 string = string + "T_CARRIES " + str(carried_id) + "\n"
 233     string = string + "SEED_RANDOMNESS " + str(rand.seed) + "\n" + \
 234              "WORLD_ACTIVE " + str(world_db["WORLD_ACTIVE"])
 235     atomic_write(io_db["path_save"], string)
 236
 237
 238 def obey_lines_in_file(path, name, do_record=False):
 239     """Call obey() on each line of path's file, use name in input prefix."""
 240     file = open(path, "r")
 241     line_n = 1
 242     for line in file.readlines():
 243         obey(line.rstrip(), name + "file line " + str(line_n),
 244              do_record=do_record)
 245         line_n = line_n + 1
 246     file.close()
 247
 248
 249 def parse_command_line_arguments():
 250     """Return settings values read from command line arguments."""
 251     parser = argparse.ArgumentParser()
 252     parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
 253                         action='store')
 254     parser.add_argument('-l', nargs="?", const="save", dest='savefile',
 255                         action="store")
 256     parser.add_argument('-v', dest='verbose', action='store_true')
 257     opts, unknown = parser.parse_known_args()
 258     return opts
 259
 260
 261 def server_test():
 262     """Ensure valid server out file belonging to current process.
 263
 264     This is done by comparing io_db["teststring"] to what's found at the start
 265     of the current file at io_db["path_out"]. On failure, set
 266     io_db["kicked_by_rival"] and raise SystemExit.
 267     """
 268     if not os.access(io_db["path_out"], os.F_OK):
 269         raise SystemExit("Server output file has disappeared.")
 270     file = open(io_db["path_out"], "r")
 271     test = file.readline().rstrip("\n")
 272     file.close()
 273     if test != io_db["teststring"]:
 274         io_db["kicked_by_rival"] = True
 275         msg = "Server test string in server output file does not match. This" \
 276               " indicates that the current server process has been " \
 277               "superseded by another one."
 278         raise SystemExit(msg)
 279
 280
 281 def read_command():
 282     """Return next newline-delimited command from server in file.
 283
 284     Keep building return string until a newline is encountered. Pause between
 285     unsuccessful reads, and after too much waiting, run server_test().
 286     """
 287     wait_on_fail = 0.03333
 288     max_wait = 5
 289     now = time.time()
 290     command = ""
 291     while True:
 292         add = io_db["file_in"].readline()
 293         if len(add) > 0:
 294             command = command + add
 295             if len(command) > 0 and "\n" == command[-1]:
 296                 command = command[:-1]
 297                 break
 298         else:
 299             time.sleep(wait_on_fail)
 300             if now + max_wait < time.time():
 301                 server_test()
 302                 now = time.time()
 303     return command
 304
 305
 306 def try_worldstate_update():
 307     """Write worldstate file if io_db["worldstate_updateable"] is set."""
 308     if io_db["worldstate_updateable"]:
 309
 310         def draw_visible_Things(map, run):
 311             for id in world_db["Things"]:
 312                 type = world_db["Things"][id]["T_TYPE"]
 313                 consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 314                 alive = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]
 315                 if (0 == run and not consumable and not alive) \
 316                    or (1 == run and consumable and not alive) \
 317                    or (2 == run and alive):
 318                     y = world_db["Things"][id]["T_POSY"]
 319                     x = world_db["Things"][id]["T_POSX"]
 320                     fovflag = world_db["Things"][0]["fovmap"][(y * length) + x]
 321                     if 'v' == chr(fovflag):
 322                         c = world_db["ThingTypes"][type]["TT_SYMBOL"]
 323                         map[(y * length) + x] = ord(c)
 324
 325         def write_map(string, map):
 326             for i in range(length):
 327                 line = map[i * length:(i * length) + length].decode()
 328                 string = string + line + "\n"
 329             return string
 330
 331         inventory = ""
 332         if [] == world_db["Things"][0]["T_CARRIES"]:
 333             inventory = "(none)\n"
 334         else:
 335             for id in world_db["Things"][0]["T_CARRIES"]:
 336                 type_id = world_db["Things"][id]["T_TYPE"]
 337                 name = world_db["ThingTypes"][type_id]["TT_NAME"]
 338                 inventory = inventory + name + "\n"
 339         # # 7DRL additions:  GOD_MOOD, GOD_FAVOR
 340         string = str(world_db["TURN"]) + "\n" + \
 341                  str(world_db["GOD_MOOD"]) + "\n" + \
 342                  str(world_db["GOD_FAVOR"]) + "\n" + \
 343                  str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
 344                  str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
 345                  inventory + "%\n" + \
 346                  str(world_db["Things"][0]["T_POSY"]) + "\n" + \
 347                  str(world_db["Things"][0]["T_POSX"]) + "\n" + \
 348                  str(world_db["MAP_LENGTH"]) + "\n"
 349         length = world_db["MAP_LENGTH"]
 350         fov = bytearray(b' ' * (length ** 2))
 351         for pos in range(length ** 2):
 352             if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
 353                 fov[pos] = world_db["MAP"][pos]
 354         for i in range(3):
 355             draw_visible_Things(fov, i)
 356         string = write_map(string, fov)
 357         mem = world_db["Things"][0]["T_MEMMAP"][:]
 358         for i in range(2):
 359             for mt in world_db["Things"][0]["T_MEMTHING"]:
 360                 consumable = world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]
 361                 if (i == 0 and not consumable) or (i == 1 and consumable):
 362                     c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
 363                     mem[(mt[1] * length) + mt[2]] = ord(c)
 364         string = write_map(string, mem)
 365         atomic_write(io_db["path_worldstate"], string, delete=False)
 366         strong_write(io_db["file_out"], "WORLD_UPDATED\n")
 367         io_db["worldstate_updateable"] = False
 368
 369
 370 def replay_game():
 371     """Replay game from record file.
 372
 373     Use opts.replay as breakpoint turn to which to replay automatically before
 374     switching to manual input by non-meta commands in server input file
 375     triggering further reads of record file. Ensure opts.replay is at least 1.
 376     Run try_worldstate_update() before each interactive obey()/read_command().
 377     """
 378     if opts.replay < 1:
 379         opts.replay = 1
 380     print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
 381           " (if so late a turn is to be found).")
 382     if not os.access(io_db["path_record"], os.F_OK):
 383         raise SystemExit("No record file found to replay.")
 384     io_db["file_record"] = open(io_db["path_record"], "r")
 385     io_db["file_record"].prefix = "record file line "
 386     io_db["file_record"].line_n = 1
 387     while world_db["TURN"] < opts.replay:
 388         line = io_db["file_record"].readline()
 389         if "" == line:
 390             break
 391         obey(line.rstrip(), io_db["file_record"].prefix
 392              + str(io_db["file_record"].line_n))
 393         io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 394     while True:
 395         try_worldstate_update()
 396         obey(read_command(), "in file", replay=True)
 397
 398
 399 def play_game():
 400     """Play game by server input file commands. Before, load save file found.
 401
 402     If no save file is found, a new world is generated from the commands in the
 403     world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
 404     command and all that follow via the server input file. Run
 405     try_worldstate_update() before each interactive obey()/read_command().
 406     """
 407     if os.access(io_db["path_save"], os.F_OK):
 408         obey_lines_in_file(io_db["path_save"], "save")
 409     else:
 410         if not os.access(io_db["path_worldconf"], os.F_OK):
 411             msg = "No world config file from which to start a new world."
 412             raise SystemExit(msg)
 413         obey_lines_in_file(io_db["path_worldconf"], "world config ",
 414                            do_record=True)
 415         obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
 416     while True:
 417         try_worldstate_update()
 418         obey(read_command(), "in file", do_record=True)
 419
 420
 421 def remake_map():
 422     """(Re-)make island map.
 423
 424     Let "~" represent water, "." land, "X" trees: Build island shape randomly,
 425     start with one land cell in the middle, then go into cycle of repeatedly
 426     selecting a random sea cell and transforming it into land if it is neighbor
 427     to land. The cycle ends when a land cell is due to be created at the map's
 428     border. Then put some trees on the map (TODO: more precise algorithm desc).
 429     """
 430
 431     def is_neighbor(coordinates, type):
 432         y = coordinates[0]
 433         x = coordinates[1]
 434         length = world_db["MAP_LENGTH"]
 435         ind = y % 2
 436         diag_west = x + (ind > 0)
 437         diag_east = x + (ind < (length - 1))
 438         pos = (y * length) + x
 439         if (y > 0 and diag_east
 440             and type == chr(world_db["MAP"][pos - length + ind])) \
 441            or (x < (length - 1)
 442                and type == chr(world_db["MAP"][pos + 1])) \
 443            or (y < (length - 1) and diag_east
 444                and type == chr(world_db["MAP"][pos + length + ind])) \
 445            or (y > 0 and diag_west
 446                and type == chr(world_db["MAP"][pos - length - (not ind)])) \
 447            or (x > 0
 448                and type == chr(world_db["MAP"][pos - 1])) \
 449            or (y < (length - 1) and diag_west
 450                and type == chr(world_db["MAP"][pos + length - (not ind)])):
 451             return True
 452         return False
 453
 454     world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
 455     length = world_db["MAP_LENGTH"]
 456     add_half_width = (not (length % 2)) * int(length / 2)
 457     world_db["MAP"][int((length ** 2) / 2) + add_half_width] = ord(".")
 458     while (1):
 459         y = rand.next() % length
 460         x = rand.next() % length
 461         pos = (y * length) + x
 462         if "~" == chr(world_db["MAP"][pos]) and is_neighbor((y, x), "."):
 463             if y == 0 or y == (length - 1) or x == 0 or x == (length - 1):
 464                 break
 465             world_db["MAP"][pos] = ord(".")
 466     n_trees = int((length ** 2) / 16)
 467     i_trees = 0
 468     while (i_trees <= n_trees):
 469         single_allowed = rand.next() % 32
 470         y = rand.next() % length
 471         x = rand.next() % length
 472         pos = (y * length) + x
 473         if "." == chr(world_db["MAP"][pos]) \
 474           and ((not single_allowed) or is_neighbor((y, x), "X")):
 475             world_db["MAP"][pos] = ord("X")
 476             i_trees += 1
 477     # This all-too-precise replica of the original C code misses iter_limit().
 478
 479
 480 def update_map_memory(t, age_map=True):
 481     """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
 482     def age_some_memdepthmap_on_nonfov_cells():
 483         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 484         # ord_v = ord("v")
 485         # ord_0 = ord("0")
 486         # ord_9 = ord("9")
 487         # for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 488         #             if not ord_v == t["fovmap"][pos]
 489         #             if ord_0 <= t["T_MEMDEPTHMAP"][pos]
 490         #             if ord_9 > t["T_MEMDEPTHMAP"][pos]
 491         #             if not rand.next() % (2 **
 492         #                                   (t["T_MEMDEPTHMAP"][pos] - 48))]:
 493         #     t["T_MEMDEPTHMAP"][pos] += 1
 494         memdepthmap = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 495         fovmap = c_pointer_to_bytearray(t["fovmap"])
 496         libpr.age_some_memdepthmap_on_nonfov_cells(memdepthmap, fovmap)
 497     if not t["T_MEMMAP"]:
 498         t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 499     if not t["T_MEMDEPTHMAP"]:
 500         t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 501     ord_v = ord("v")
 502     ord_0 = ord("0")
 503     ord_space = ord(" ")
 504     for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 505                 if ord_v == t["fovmap"][pos]]:
 506         t["T_MEMDEPTHMAP"][pos] = ord_0
 507         if ord_space == t["T_MEMMAP"][pos]:
 508             t["T_MEMMAP"][pos] = world_db["MAP"][pos]
 509     if age_map:
 510         age_some_memdepthmap_on_nonfov_cells()
 511     t["T_MEMTHING"] = [mt for mt in t["T_MEMTHING"]
 512                        if ord_v != t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
 513                                                + mt[2]]]
 514     for id in [id for id in world_db["Things"]
 515                if not world_db["Things"][id]["carried"]]:
 516         type = world_db["Things"][id]["T_TYPE"]
 517         if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
 518             y = world_db["Things"][id]["T_POSY"]
 519             x = world_db["Things"][id]["T_POSX"]
 520             if ord_v == t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]:
 521                 t["T_MEMTHING"].append((type, y, x))
 522
 523
 524 def set_world_inactive():
 525     """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
 526     server_test()
 527     if os.access(io_db["path_worldstate"], os.F_OK):
 528         os.remove(io_db["path_worldstate"])
 529     world_db["WORLD_ACTIVE"] = 0
 530
 531
 532 def integer_test(val_string, min, max=None):
 533     """Return val_string if possible integer >= min and <= max, else None."""
 534     try:
 535         val = int(val_string)
 536         if val < min or (max is not None and val > max):
 537             raise ValueError
 538         return val
 539     except ValueError:
 540         msg = "Ignoring: Please use integer >= " + str(min)
 541         if max is not None:
 542             msg += " and <= " + str(max)
 543         msg += "."
 544         print(msg)
 545         return None
 546
 547
 548 def setter(category, key, min, max=None):
 549     """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
 550     if category is None:
 551         def f(val_string):
 552             val = integer_test(val_string, min, max)
 553             if None != val:
 554                 world_db[key] = val
 555     else:
 556         if category == "Thing":
 557             id_store = command_tid
 558             decorator = test_Thing_id
 559         elif category == "ThingType":
 560             id_store = command_ttid
 561             decorator = test_ThingType_id
 562         elif category == "ThingAction":
 563             id_store = command_taid
 564             decorator = test_ThingAction_id
 565
 566         @decorator
 567         def f(val_string):
 568             val = integer_test(val_string, min, max)
 569             if None != val:
 570                 world_db[category + "s"][id_store.id][key] = val
 571     return f
 572
 573
 574 def build_fov_map(t):
 575     """Build Thing's FOV map."""
 576     t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
 577     fovmap = c_pointer_to_bytearray(t["fovmap"])
 578     map = c_pointer_to_bytearray(world_db["MAP"])
 579     if libpr.build_fov_map(t["T_POSY"], t["T_POSX"], fovmap, map):
 580         raise RuntimeError("Malloc error in build_fov_Map().")
 581
 582
 583 def decrement_lifepoints(t):
 584     """Decrement t's lifepoints by 1, and if to zero, corpse it.
 585
 586     If t is the player avatar, only blank its fovmap, so that the client may
 587     still display memory data. On non-player things, erase fovmap and memory.
 588     Dying actors drop all their things.
 589     """
 590     # # 7DRL: also decrements God's mood; deaths heavily so
 591     # # 7DRL: return 1 if death, else 0
 592     t["T_LIFEPOINTS"] -= 1
 593     world_db["GOD_MOOD"] -= 1  # #
 594     if 0 == t["T_LIFEPOINTS"]:
 595         sadness = world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]  # #
 596         world_db["GOD_MOOD"] -= sadness  # #
 597         for id in t["T_CARRIES"]:
 598             t["T_CARRIES"].remove(id)
 599             world_db["Things"][id]["T_POSY"] = t["T_POSY"]
 600             world_db["Things"][id]["T_POSX"] = t["T_POSX"]
 601             world_db["Things"][id]["carried"] = False
 602         t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
 603         if world_db["Things"][0] == t:
 604             t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 605             strong_write(io_db["file_out"], "LOG You die.\n")
 606         else:
 607             t["fovmap"] = False
 608             t["T_MEMMAP"] = False
 609             t["T_MEMDEPTHMAP"] = False
 610             t["T_MEMTHING"] = []
 611         return sadness  # #
 612     return 0  # #
 613
 614
 615 def add_gods_favor(i): # #
 616     """"Add to GOD_FAVOR, multiplied with factor growing log. with GOD_MOOD."""
 617     def favor_multiplier(i):
 618         x = 100
 619         threshold = math.e * x
 620         mood = world_db["GOD_MOOD"]
 621         if i > 0:
 622             if mood > threshold:
 623                 i = i * math.log(mood / x)
 624             elif -mood > threshold:
 625                 i = i / math.log(-mood / x)
 626         elif i < 0:
 627             if -mood > threshold:
 628                 i = i * math.log(-mood / x)
 629             if mood > threshold:
 630                 i = i / math.log(mood / x)
 631         return int(i)
 632     world_db["GOD_FAVOR"] += favor_multiplier(i)
 633
 634
 635 def mv_yx_in_dir_legal(dir, y, x):
 636     """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
 637     dir_c = dir.encode("ascii")[0]
 638     test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
 639     if -1 == test:
 640         raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
 641     return (test, libpr.result_y(), libpr.result_x())
 642
 643
 644 def actor_wait(t):
 645     """Make t do nothing (but loudly, if player avatar)."""
 646     if t == world_db["Things"][0]:
 647         strong_write(io_db["file_out"], "LOG You wait.\n")
 648
 649
 650 def actor_move(t):
 651     """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
 652     # # 7DRL: Player wounding (worse: killing) others will lower God's favor.
 653     passable = False
 654     move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
 655                                      t["T_POSY"], t["T_POSX"])
 656     if 1 == move_result[0]:
 657         pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
 658         passable = "." == chr(world_db["MAP"][pos])
 659         hitted = [id for id in world_db["Things"]
 660                   if world_db["Things"][id] != t
 661                   if world_db["Things"][id]["T_LIFEPOINTS"]
 662                   if world_db["Things"][id]["T_POSY"] == move_result[1]
 663                   if world_db["Things"][id]["T_POSX"] == move_result[2]]
 664         if len(hitted):
 665             hit_id = hitted[0]
 666             if t == world_db["Things"][0]:
 667                 hitted_type = world_db["Things"][hit_id]["T_TYPE"]
 668                 hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
 669                 strong_write(io_db["file_out"], "LOG You wound " + hitted_name
 670                                                 + ".\n")
 671                 add_gods_favor(-1)  # #
 672             elif 0 == hit_id:
 673                 hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
 674                 strong_write(io_db["file_out"], "LOG " + hitter_name +
 675                                                 " wounds you.\n")
 676             test = decrement_lifepoints(world_db["Things"][hit_id])  # #(test=)
 677             if test and t == world_db["Things"][0]:  # #
 678                 add_gods_favor(-test)  # #
 679             return
 680     dir = [dir for dir in directions_db
 681            if directions_db[dir] == chr(t["T_ARGUMENT"])][0]
 682     if passable:
 683         t["T_POSY"] = move_result[1]
 684         t["T_POSX"] = move_result[2]
 685         for id in t["T_CARRIES"]:
 686             world_db["Things"][id]["T_POSY"] = move_result[1]
 687             world_db["Things"][id]["T_POSX"] = move_result[2]
 688         build_fov_map(t)
 689         if t == world_db["Things"][0]:
 690             strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
 691     elif t == world_db["Things"][0]:
 692         strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
 693
 694
 695 def actor_pick_up(t):
 696     """Make t pick up (topmost?) Thing from ground into inventory."""
 697     # Topmostness is actually not defined so far. Picks most nutritious Thing.
 698     # 7DRL: Non-player picking up player-dropped consumable -> GOD_FAVOR gain.
 699     used_slots = len(t["T_CARRIES"]) # #
 700     if used_slots < world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]: # #
 701         ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
 702                if not world_db["Things"][id]["carried"]
 703                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 704                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
 705         if len(ids):
 706             highest_id = ids[0]
 707             nutritious = 0
 708             for id in ids:
 709                 type = world_db["Things"][id]["T_TYPE"]
 710                 if world_db["ThingTypes"][type]["TT_CONSUMABLE"] > nutritious:
 711                     nutritious = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 712                     highest_id = id
 713             world_db["Things"][highest_id]["carried"] = True
 714             if (t != world_db["Things"][0] and  # #
 715                 world_db["Things"][highest_id]["T_PLAYERDROP"]):  # #
 716                 x = world_db["Things"][highest_id]["T_TYPE"]
 717                 score = world_db["ThingTypes"][x]["TT_CONSUMABLE"] / 32  # #
 718                 add_gods_favor(score)  # #
 719                 world_db["Things"][highest_id]["T_PLAYERDROP"] = 0  # #
 720             t["T_CARRIES"].append(highest_id)
 721             if t == world_db["Things"][0]:
 722                 strong_write(io_db["file_out"], "LOG You pick up an object.\n")
 723         elif t == world_db["Things"][0]:
 724             err = "You try to pick up an object, but there is none."
 725             strong_write(io_db["file_out"], "LOG " + err + "\n")
 726     elif t == world_db["Things"][0]: # #
 727         strong_write(io_db["file_out"], "LOG Can't pick up object: " + # #
 728                                         "No storage room to carry more.\n") # #
 729
 730
 731 def actor_drop(t):
 732     """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
 733     # TODO: Handle case where T_ARGUMENT matches nothing.
 734     if len(t["T_CARRIES"]):
 735         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 736         t["T_CARRIES"].remove(id)
 737         world_db["Things"][id]["carried"] = False
 738         if t == world_db["Things"][0]:
 739             strong_write(io_db["file_out"], "LOG You drop an object.\n")
 740             world_db["Things"][id]["T_PLAYERDROP"] = 1  # #
 741     elif t == world_db["Things"][0]:
 742         err = "You try to drop an object, but you own none."
 743         strong_write(io_db["file_out"], "LOG " + err + "\n")
 744
 745
 746 def actor_use(t):
 747     """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
 748     # TODO: Handle case where T_ARGUMENT matches nothing.
 749     if len(t["T_CARRIES"]):
 750         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 751         type = world_db["Things"][id]["T_TYPE"]
 752         if world_db["ThingTypes"][type]["TT_CONSUMABLE"]:
 753             t["T_CARRIES"].remove(id)
 754             del world_db["Things"][id]
 755             t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 756             if t == world_db["Things"][0]:
 757                 strong_write(io_db["file_out"],
 758                              "LOG You consume this object.\n")
 759         elif t == world_db["Things"][0]:
 760             strong_write(io_db["file_out"],
 761                          "LOG You try to use this object, but fail.\n")
 762     elif t == world_db["Things"][0]:
 763         strong_write(io_db["file_out"],
 764                      "LOG You try to use an object, but you own none.\n")
 765
 766
 767 def thingproliferation(t, prol_map):
 768     """To chance of 1/TT_PROLIFERATE,create  t offspring in open neighbor cell.
 769
 770     Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be be
 771     marked '.' in prol_map. If there are several map cell candidates, one is
 772     selected randomly.
 773     """
 774     # # 7DRL: success increments God's mood
 775     prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
 776     if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
 777         candidates = []
 778         for dir in [directions_db[key] for key in directions_db]:
 779             mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
 780             if mv_result[0] and  ord('.') == prol_map[mv_result[1]
 781                                                       * world_db["MAP_LENGTH"]
 782                                                       + mv_result[2]]:
 783                 candidates.append((mv_result[1], mv_result[2]))
 784         if len(candidates):
 785             i = rand.next() % len(candidates)
 786             id = id_setter(-1, "Things")
 787             newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
 788             world_db["Things"][id] = newT
 789             world_db["GOD_MOOD"] += 1  # #
 790
 791
 792 def try_healing(t):
 793     """Grow t's HP to a 1/32 chance if < HP max, satiation > 0, and waiting.
 794
 795     On success, decrease satiation score by 32.
 796     """
 797     # # 7DRL: Successful heals increment God's mood.
 798     if t["T_SATIATION"] > 0 \
 799        and t["T_LIFEPOINTS"] < \
 800            world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] \
 801        and 0 == (rand.next() % 31) \
 802        and t["T_COMMAND"] == [id for id in world_db["ThingActions"]
 803                               if world_db["ThingActions"][id]["TA_NAME"] ==
 804                                  "wait"][0]:
 805         t["T_LIFEPOINTS"] += 1
 806         world_db["GOD_MOOD"] += 1  # #
 807         t["T_SATIATION"] -= 32
 808         if t == world_db["Things"][0]:
 809             strong_write(io_db["file_out"], "LOG You heal.\n")
 810
 811
 812 def hunger(t):
 813     """Decrement t's satiation,dependent on it trigger lifepoint dec chance."""
 814     if t["T_SATIATION"] > -32768:
 815         t["T_SATIATION"] -= 1
 816     testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
 817     if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
 818         raise RuntimeError("A thing that should not hunger is hungering.")
 819     stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
 820     if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
 821         if t == world_db["Things"][0]:
 822             strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
 823         decrement_lifepoints(t)
 824
 825
 826 def get_dir_to_target(t, filter):
 827     """Try to set T_COMMAND/T_ARGUMENT for move to "filter"-determined target.
 828
 829     The path-wise nearest target is chosen, via the shortest available path.
 830     Target must not be t. On succcess, return positive value, else False.
 831     Filters:
 832     "a": Thing in FOV is below a certain distance, animate, but of ThingType
 833          that is not t's, and starts out weaker than t is; build path as
 834          avoiding things of t's ThingType
 835     "f": neighbor cell (not inhabited by any animate Thing) further away from
 836          animate Thing not further than x steps away and in FOV and of a
 837          ThingType that is not t's, and starts out stronger or as strong as t
 838          is currently; or (cornered), if no such flight cell, but Thing of
 839          above criteria is too near,1 a cell closer to it, or, if less near,
 840          just wait
 841     "c": Thing in memorized map is consumable
 842     "s": memory map cell with greatest-reachable degree of unexploredness
 843     """
 844
 845     def zero_score_map_where_char_on_memdepthmap(c):
 846         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 847         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 848         #           if t["T_MEMDEPTHMAP"][i] == mem_depth_c[0]]:
 849         #     set_map_score(i, 0)
 850         map = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 851         if libpr.zero_score_map_where_char_on_memdepthmap(c, map):
 852             raise RuntimeError("No score map allocated for "
 853                                "zero_score_map_where_char_on_memdepthmap().")
 854
 855     def set_map_score(pos, score):
 856         test = libpr.set_map_score(pos, score)
 857         if test:
 858             raise RuntimeError("No score map allocated for set_map_score().")
 859
 860     def get_map_score(pos):
 861         result = libpr.get_map_score(pos)
 862         if result < 0:
 863             raise RuntimeError("No score map allocated for get_map_score().")
 864         return result
 865
 866     def seeing_thing():
 867         if t["fovmap"] and ("a" == filter or "f" == filter):
 868             for id in world_db["Things"]:
 869                 Thing = world_db["Things"][id]
 870                 if Thing != t and Thing["T_LIFEPOINTS"] and \
 871                    t["T_TYPE"] != Thing["T_TYPE"] and \
 872                    'v' == chr(t["fovmap"][(Thing["T_POSY"]
 873                                           * world_db["MAP_LENGTH"])
 874                                           + Thing["T_POSX"]]):
 875                     ThingType = world_db["ThingTypes"][Thing["T_TYPE"]]
 876                     if ("f" == filter and ThingType["TT_LIFEPOINTS"] >=
 877                                           t["T_LIFEPOINTS"]) \
 878                        or ("a" == filter and ThingType["TT_LIFEPOINTS"] <
 879                                              t["T_LIFEPOINTS"]):
 880                         return True
 881         elif t["T_MEMMAP"] and "c" == filter:
 882             for mt in t["T_MEMTHING"]:
 883                 if ' ' != chr(t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
 884                                          + mt[2]]) \
 885                    and world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]:
 886                     return True
 887         return False
 888
 889     def set_cells_passable_on_memmap_to_65534_on_scoremap():
 890         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 891         # ord_dot = ord(".")
 892         # memmap = t["T_MEMMAP"]
 893         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 894         #            if ord_dot == memmap[i]]:
 895         #     set_map_score(i, 65534) # i.e. 65535-1
 896         map = c_pointer_to_bytearray(t["T_MEMMAP"])
 897         if libpr.set_cells_passable_on_memmap_to_65534_on_scoremap(map):
 898             raise RuntimeError("No score map allocated for "
 899                         "set_cells_passable_on_memmap_to_65534_on_scoremap().")
 900
 901     def init_score_map():
 902         test = libpr.init_score_map()
 903         if test:
 904             raise RuntimeError("Malloc error in init_score_map().")
 905         ord_v = ord("v")
 906         ord_blank = ord(" ")
 907         set_cells_passable_on_memmap_to_65534_on_scoremap()
 908         if "a" == filter:
 909             for id in world_db["Things"]:
 910                 Thing = world_db["Things"][id]
 911                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 912                       + Thing["T_POSX"]
 913                 if t != Thing and Thing["T_LIFEPOINTS"] and \
 914                    t["T_TYPE"] != Thing["T_TYPE"] and \
 915                    ord_v == t["fovmap"][pos] and \
 916                    t["T_LIFEPOINTS"] > \
 917                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 918                     set_map_score(pos, 0)
 919                 elif t["T_TYPE"] == Thing["T_TYPE"]:
 920                     set_map_score(pos, 65535)
 921         elif "f" == filter:
 922             for id in [id for id in world_db["Things"]
 923                        if world_db["Things"][id]["T_LIFEPOINTS"]]:
 924                 Thing = world_db["Things"][id]
 925                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 926                       + Thing["T_POSX"]
 927                 if t["T_TYPE"] != Thing["T_TYPE"] and \
 928                    ord_v == t["fovmap"][pos] and \
 929                    t["T_LIFEPOINTS"] <= \
 930                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 931                     set_map_score(pos, 0)
 932         elif "c" == filter:
 933             for mt in [mt for mt in t["T_MEMTHING"]
 934                        if ord_blank != t["T_MEMMAP"][mt[1]
 935                                                     * world_db["MAP_LENGTH"]
 936                                                     + mt[2]]
 937                        if world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]]:
 938                 set_map_score(mt[1] * world_db["MAP_LENGTH"] + mt[2], 0)
 939         elif "s" == filter:
 940             zero_score_map_where_char_on_memdepthmap(mem_depth_c[0])
 941
 942     def rand_target_dir(neighbors, cmp, dirs):
 943         candidates = []
 944         n_candidates = 0
 945         for i in range(len(dirs)):
 946             if cmp == neighbors[i]:
 947                 candidates.append(dirs[i])
 948                 n_candidates += 1
 949         return candidates[rand.next() % n_candidates] if n_candidates else 0
 950
 951     def get_neighbor_scores(dirs, eye_pos):
 952         scores = []
 953         if libpr.ready_neighbor_scores(eye_pos):
 954             raise RuntimeError("No score map allocated for " +
 955                                "ready_neighbor_scores.()")
 956         for i in range(len(dirs)):
 957             scores.append(libpr.get_neighbor_score(i))
 958         return scores
 959
 960     def get_dir_from_neighbors():
 961         dir_to_target = False
 962         dirs = "edcxsw"
 963         eye_pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
 964         neighbors = get_neighbor_scores(dirs, eye_pos)
 965         if "f" == filter:
 966             inhabited = [world_db["Things"][id]["T_POSY"]
 967                          * world_db["MAP_LENGTH"]
 968                          + world_db["Things"][id]["T_POSX"]
 969                          for id in world_db["Things"]
 970                          if world_db["Things"][id]["T_LIFEPOINTS"]]
 971             for i in range(len(dirs)):
 972                 mv_yx_in_dir_legal(dirs[i], t["T_POSY"], t["T_POSX"])
 973                 pos_cmp = libpr.result_y() * world_db["MAP_LENGTH"] \
 974                           + libpr.result_x()
 975                 for pos in [pos for pos in inhabited if pos == pos_cmp]:
 976                     neighbors[i] = 65535
 977                     break
 978         minmax_start = 0 if "f" == filter else 65535 - 1
 979         minmax_neighbor = minmax_start
 980         for i in range(len(dirs)):
 981             if ("f" == filter and get_map_score(eye_pos) < neighbors[i] and
 982                 minmax_neighbor < neighbors[i] and 65535 != neighbors[i]) \
 983                or ("f" != filter and minmax_neighbor > neighbors[i]):
 984                 minmax_neighbor = neighbors[i]
 985         if minmax_neighbor != minmax_start:
 986             dir_to_target = rand_target_dir(neighbors, minmax_neighbor, dirs)
 987         if "f" == filter:
 988             if not dir_to_target:
 989                 if 1 == get_map_score(eye_pos):
 990                     dir_to_target = rand_target_dir(neighbors, 0, dirs)
 991                 elif 3 >= get_map_score(eye_pos):
 992                     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 993                                       if
 994                                       world_db["ThingActions"][id]["TA_NAME"]
 995                                          == "wait"][0]
 996                     return 1
 997             elif dir_to_target and 3 < get_map_score(eye_pos):
 998                 dir_to_target = 0
 999         elif "a" == filter and 10 <= get_map_score(eye_pos):
1000             dir_to_target = 0
1001         return dir_to_target
1002
1003     dir_to_target = False
1004     mem_depth_c = b' '
1005     run_i = 9 + 1 if "s" == filter else 1
1006     while run_i and not dir_to_target and ("s" == filter or seeing_thing()):
1007         run_i -= 1
1008         init_score_map()
1009         mem_depth_c = b'9' if b' ' == mem_depth_c \
1010                            else bytes([mem_depth_c[0] - 1])
1011         if libpr.dijkstra_map():
1012             raise RuntimeError("No score map allocated for dijkstra_map().")
1013         dir_to_target = get_dir_from_neighbors()
1014         libpr.free_score_map()
1015         if dir_to_target and str == type(dir_to_target):
1016             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1017                               if world_db["ThingActions"][id]["TA_NAME"]
1018                                  == "move"][0]
1019             t["T_ARGUMENT"] = ord(dir_to_target)
1020     return dir_to_target
1021
1022
1023 def standing_on_consumable(t):
1024     """Return True/False whether t is standing on a consumable."""
1025     for id in [id for id in world_db["Things"] if world_db["Things"][id] != t
1026                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
1027                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]
1028                if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
1029                           ["TT_CONSUMABLE"]]:
1030         return True
1031     return False
1032
1033
1034 def get_inventory_slot_to_consume(t):
1035     """Return slot Id of strongest consumable in t's inventory, else -1."""
1036     cmp_consumability = 0
1037     selection = -1
1038     i = 0
1039     for id in t["T_CARRIES"]:
1040         type = world_db["Things"][id]["T_TYPE"]
1041         if world_db["ThingTypes"][type]["TT_CONSUMABLE"] > cmp_consumability:
1042             cmp_consumability = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
1043             selection = i
1044         i += 1
1045     return selection
1046
1047
1048 def ai(t):
1049     """Determine next command/argment for actor t via AI algorithms.
1050
1051     AI will look for, and move towards, enemies (animate Things not of their
1052     own ThingType); if they see none, they will consume consumables in their
1053     inventory; if there are none, they will pick up what they stand on if they
1054     stand on consumables; if they stand on none, they will move towards the
1055     next consumable they see or remember on the map; if they see or remember
1056     none, they will explore parts of the map unseen since ever or for at least
1057     one turn; if there is nothing to explore, they will simply wait.
1058     """
1059     # # 7DRL add: Don't pick up or search things when inventory is full.
1060     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1061                       if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
1062     if not get_dir_to_target(t, "f"):
1063         sel = get_inventory_slot_to_consume(t)
1064         if -1 != sel:
1065             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1066                               if world_db["ThingActions"][id]["TA_NAME"]
1067                                  == "use"][0]
1068             t["T_ARGUMENT"] = sel
1069         elif standing_on_consumable(t) \
1070              and (len(t["T_CARRIES"]) < # #
1071                  world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]): # #
1072             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1073                               if world_db["ThingActions"][id]["TA_NAME"]
1074                                  == "pick_up"][0]
1075         elif (not
1076               (len(t["T_CARRIES"]) < # #
1077                 world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"] # #
1078                and get_dir_to_target(t, "c"))) and \
1079              (not get_dir_to_target(t, "a")):
1080             get_dir_to_target(t, "s")
1081
1082
1083 def turn_over():
1084     """Run game world and its inhabitants until new player input expected."""
1085     id = 0
1086     whilebreaker = False
1087     while world_db["Things"][0]["T_LIFEPOINTS"]:
1088         proliferable_map = world_db["MAP"][:]
1089         for id in [id for id in world_db["Things"]
1090                    if not world_db["Things"][id]["carried"]]:
1091             y = world_db["Things"][id]["T_POSY"]
1092             x = world_db["Things"][id]["T_POSX"]
1093             proliferable_map[y * world_db["MAP_LENGTH"] + x] = ord('X')
1094         for id in [id for id in world_db["Things"]]:  # Only what's from start!
1095             if not id in world_db["Things"] or \
1096                world_db["Things"][id]["carried"]:   # May have been consumed or
1097                 continue                            # picked up during turn …
1098             Thing = world_db["Things"][id]
1099             if Thing["T_LIFEPOINTS"]:
1100                 if not Thing["T_COMMAND"]:
1101                     update_map_memory(Thing)
1102                     if 0 == id:
1103                         whilebreaker = True
1104                         break
1105                     ai(Thing)
1106                 try_healing(Thing)
1107                 Thing["T_PROGRESS"] += 1
1108                 taid = [a for a in world_db["ThingActions"]
1109                           if a == Thing["T_COMMAND"]][0]
1110                 ThingAction = world_db["ThingActions"][taid]
1111                 if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
1112                     eval("actor_" + ThingAction["TA_NAME"])(Thing)
1113                     Thing["T_COMMAND"] = 0
1114                     Thing["T_PROGRESS"] = 0
1115                 hunger(Thing)
1116             thingproliferation(Thing, proliferable_map)
1117         if whilebreaker:
1118             break
1119         world_db["TURN"] += 1
1120
1121
1122 def new_Thing(type, pos=(0, 0)):
1123     """Return Thing of type T_TYPE, with fovmap if alive and world active."""
1124     thing = {
1125         "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
1126         "T_ARGUMENT": 0,
1127         "T_PROGRESS": 0,
1128         "T_SATIATION": 0,
1129         "T_COMMAND": 0,
1130         "T_PLAYERDROP": 0,  # #
1131         "T_TYPE": type,
1132         "T_POSY": pos[0],
1133         "T_POSX": pos[1],
1134         "T_CARRIES": [],
1135         "carried": False,
1136         "T_MEMTHING": [],
1137         "T_MEMMAP": False,
1138         "T_MEMDEPTHMAP": False,
1139         "fovmap": False
1140     }
1141     if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
1142         build_fov_map(thing)
1143     return thing
1144
1145
1146 def id_setter(id, category, id_store=False, start_at_1=False):
1147     """Set ID of object of category to manipulate ID unused? Create new one.
1148
1149     The ID is stored as id_store.id (if id_store is set). If the integer of the
1150     input is valid (if start_at_1, >= 0, else >= -1), but <0 or (if start_at_1)
1151     <1, calculate new ID: lowest unused ID >=0 or (if start_at_1) >= 1. None is
1152     always returned when no new object is created, otherwise the new object's
1153     ID.
1154     """
1155     min = 0 if start_at_1 else -1
1156     if str == type(id):
1157         id = integer_test(id, min)
1158     if None != id:
1159         if id in world_db[category]:
1160             if id_store:
1161                 id_store.id = id
1162             return None
1163         else:
1164             if (start_at_1 and 0 == id) \
1165                or ((not start_at_1) and (id < 0)):
1166                 id = 0 if start_at_1 else -1
1167                 while 1:
1168                     id = id + 1
1169                     if id not in world_db[category]:
1170                         break
1171             if id_store:
1172                 id_store.id = id
1173     return id
1174
1175
1176 def command_ping():
1177     """Send PONG line to server output file."""
1178     strong_write(io_db["file_out"], "PONG\n")
1179
1180
1181 def command_quit():
1182     """Abort server process."""
1183     if None == opts.replay:
1184         if world_db["WORLD_ACTIVE"]:
1185             save_world()
1186         atomic_write(io_db["path_record"], io_db["record_chunk"], do_append=True)
1187     raise SystemExit("received QUIT command")
1188
1189
1190 def command_thingshere(str_y, str_x):
1191     """Write to out file list of Things known to player at coordinate y, x."""
1192     if world_db["WORLD_ACTIVE"]:
1193         y = integer_test(str_y, 0, 255)
1194         x = integer_test(str_x, 0, 255)
1195         length = world_db["MAP_LENGTH"]
1196         if None != y and None != x and y < length and x < length:
1197             pos = (y * world_db["MAP_LENGTH"]) + x
1198             strong_write(io_db["file_out"], "THINGS_HERE START\n")
1199             if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
1200                 for id in world_db["Things"]:
1201                     if y == world_db["Things"][id]["T_POSY"] \
1202                        and x == world_db["Things"][id]["T_POSX"] \
1203                        and not world_db["Things"][id]["carried"]:
1204                         type = world_db["Things"][id]["T_TYPE"]
1205                         name = world_db["ThingTypes"][type]["TT_NAME"]
1206                         strong_write(io_db["file_out"], name + "\n")
1207             else:
1208                 for mt in world_db["Things"][0]["T_MEMTHING"]:
1209                     if y == mt[1] and x == mt[2]:
1210                         name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
1211                         strong_write(io_db["file_out"], name + "\n")
1212             strong_write(io_db["file_out"], "THINGS_HERE END\n")
1213         else:
1214             print("Ignoring: Invalid map coordinates.")
1215     else:
1216         print("Ignoring: Command only works on existing worlds.")
1217
1218
1219 def play_commander(action, args=False):
1220     """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
1221
1222     T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
1223     """
1224
1225     def set_command():
1226         id = [x for x in world_db["ThingActions"]
1227                 if world_db["ThingActions"][x]["TA_NAME"] == action][0]
1228         world_db["Things"][0]["T_COMMAND"] = id
1229         turn_over()
1230
1231     def set_command_and_argument_int(str_arg):
1232         val = integer_test(str_arg, 0, 255)
1233         if None != val:
1234             world_db["Things"][0]["T_ARGUMENT"] = val
1235             set_command()
1236
1237     def set_command_and_argument_movestring(str_arg):
1238         if str_arg in directions_db:
1239             world_db["Things"][0]["T_ARGUMENT"] = ord(directions_db[str_arg])
1240             set_command()
1241         else:
1242             print("Ignoring: Argument must be valid direction string.")
1243
1244     if action == "move":
1245         return set_command_and_argument_movestring
1246     elif args:
1247         return set_command_and_argument_int
1248     else:
1249         return set_command
1250
1251
1252 def command_seedrandomness(seed_string):
1253     """Set rand seed to int(seed_string)."""
1254     val = integer_test(seed_string, 0, 4294967295)
1255     if None != val:
1256         rand.seed = val
1257
1258
1259 def command_makeworld(seed_string):
1260     """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
1261
1262     Seed rand with seed. Do more only with a "wait" ThingAction and
1263     world["PLAYER_TYPE"] matching ThingType of TT_START_NUMBER > 0. Then,
1264     world_db["Things"] emptied, call remake_map() and set
1265     world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
1266     according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
1267     of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
1268     other. Init player's memory map. Write "NEW_WORLD" line to out file.
1269     """
1270
1271     def free_pos():
1272         i = 0
1273         while 1:
1274             err = "Space to put thing on too hard to find. Map too small?"
1275             while 1:
1276                 y = rand.next() % world_db["MAP_LENGTH"]
1277                 x = rand.next() % world_db["MAP_LENGTH"]
1278                 if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
1279                     break
1280                 i += 1
1281                 if i == 65535:
1282                     raise SystemExit(err)
1283             # Replica of C code, wrongly ignores animatedness of new Thing.
1284             pos_clear = (0 == len([id for id in world_db["Things"]
1285                                    if world_db["Things"][id]["T_LIFEPOINTS"]
1286                                    if world_db["Things"][id]["T_POSY"] == y
1287                                    if world_db["Things"][id]["T_POSX"] == x]))
1288             if pos_clear:
1289                 break
1290         return (y, x)
1291
1292     val = integer_test(seed_string, 0, 4294967295)
1293     if None == val:
1294         return
1295     rand.seed = val
1296     player_will_be_generated = False
1297     playertype = world_db["PLAYER_TYPE"]
1298     for ThingType in world_db["ThingTypes"]:
1299         if playertype == ThingType:
1300             if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
1301                 player_will_be_generated = True
1302             break
1303     if not player_will_be_generated:
1304         print("Ignoring: No player type with start number >0 defined.")
1305         return
1306     wait_action = False
1307     for ThingAction in world_db["ThingActions"]:
1308         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1309             wait_action = True
1310     if not wait_action:
1311         print("Ignoring: No thing action with name 'wait' defined.")
1312         return
1313     world_db["Things"] = {}
1314     remake_map()
1315     world_db["WORLD_ACTIVE"] = 1
1316     world_db["TURN"] = 1
1317     for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
1318         id = id_setter(-1, "Things")
1319         world_db["Things"][id] = new_Thing(playertype, free_pos())
1320     update_map_memory(world_db["Things"][0])
1321     for type in world_db["ThingTypes"]:
1322         for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
1323             if type != playertype:
1324                 id = id_setter(-1, "Things")
1325                 world_db["Things"][id] = new_Thing(type, free_pos())
1326     strong_write(io_db["file_out"], "NEW_WORLD\n")
1327
1328
1329 def command_maplength(maplength_string):
1330     """Redefine map length. Invalidate map, therefore lose all things on it."""
1331     val = integer_test(maplength_string, 1, 256)
1332     if None != val:
1333         world_db["MAP_LENGTH"] = val
1334         set_world_inactive()
1335         world_db["Things"] = {}
1336         libpr.set_maplength(val)
1337
1338
1339 def command_worldactive(worldactive_string):
1340     """Toggle world_db["WORLD_ACTIVE"] if possible.
1341
1342     An active world can always be set inactive. An inactive world can only be
1343     set active with a "wait" ThingAction, and a player Thing (of ID 0), and a
1344     map. On activation, rebuild all Things' FOVs, and the player's map memory.
1345     """
1346     val = integer_test(worldactive_string, 0, 1)
1347     if val:
1348         if 0 != world_db["WORLD_ACTIVE"]:
1349             if 0 == val:
1350                 set_world_inactive()
1351             else:
1352                 print("World already active.")
1353         elif 0 == world_db["WORLD_ACTIVE"]:
1354             wait_exists = False
1355             for ThingAction in world_db["ThingActions"]:
1356                 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1357                     wait_exists = True
1358                     break
1359             player_exists = False
1360             for Thing in world_db["Things"]:
1361                 if 0 == Thing:
1362                     player_exists = True
1363                     break
1364             if wait_exists and player_exists and "MAP" in world_db:
1365                 for id in world_db["Things"]:
1366                     if world_db["Things"][id]["T_LIFEPOINTS"]:
1367                         build_fov_map(world_db["Things"][id])
1368                         if 0 == id:
1369                             update_map_memory(world_db["Things"][id], False)
1370                 world_db["WORLD_ACTIVE"] = 1
1371             else:
1372                 print("Ignoring: Not all conditions for world activation met.")
1373
1374
1375 def test_for_id_maker(object, category):
1376     """Return decorator testing for object having "id" attribute."""
1377     def decorator(f):
1378         def helper(*args):
1379             if hasattr(object, "id"):
1380                 f(*args)
1381             else:
1382                 print("Ignoring: No " + category +
1383                       " defined to manipulate yet.")
1384         return helper
1385     return decorator
1386
1387
1388 def command_tid(id_string):
1389     """Set ID of Thing to manipulate. ID unused? Create new one.
1390
1391     Default new Thing's type to the first available ThingType, others: zero.
1392     """
1393     id = id_setter(id_string, "Things", command_tid)
1394     if None != id:
1395         if world_db["ThingTypes"] == {}:
1396             print("Ignoring: No ThingType to settle new Thing in.")
1397             return
1398         type = list(world_db["ThingTypes"].keys())[0]
1399         world_db["Things"][id] = new_Thing(type)
1400
1401
1402 test_Thing_id = test_for_id_maker(command_tid, "Thing")
1403
1404
1405 @test_Thing_id
1406 def command_tcommand(str_int):
1407     """Set T_COMMAND of selected Thing."""
1408     val = integer_test(str_int, 0)
1409     if None != val:
1410         if 0 == val or val in world_db["ThingActions"]:
1411             world_db["Things"][command_tid.id]["T_COMMAND"] = val
1412         else:
1413             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
1414
1415
1416 @test_Thing_id
1417 def command_ttype(str_int):
1418     """Set T_TYPE of selected Thing."""
1419     val = integer_test(str_int, 0)
1420     if None != val:
1421         if val in world_db["ThingTypes"]:
1422             world_db["Things"][command_tid.id]["T_TYPE"] = val
1423         else:
1424             print("Ignoring: ThingType ID belongs to no known ThingType.")
1425
1426
1427 @test_Thing_id
1428 def command_tcarries(str_int):
1429     """Append int(str_int) to T_CARRIES of selected Thing.
1430
1431     The ID int(str_int) must not be of the selected Thing, and must belong to a
1432     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
1433     """
1434     val = integer_test(str_int, 0)
1435     if None != val:
1436         if val == command_tid.id:
1437             print("Ignoring: Thing cannot carry itself.")
1438         elif val in world_db["Things"] \
1439              and not world_db["Things"][val]["carried"]:
1440             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
1441             world_db["Things"][val]["carried"] = True
1442         else:
1443             print("Ignoring: Thing not available for carrying.")
1444     # Note that the whole carrying structure is different from the C version:
1445     # Carried-ness is marked by a "carried" flag, not by Things containing
1446     # Things internally.
1447
1448
1449 @test_Thing_id
1450 def command_tmemthing(str_t, str_y, str_x):
1451     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
1452
1453     The type must fit to an existing ThingType, and the position into the map.
1454     """
1455     type = integer_test(str_t, 0)
1456     posy = integer_test(str_y, 0, 255)
1457     posx = integer_test(str_x, 0, 255)
1458     if None != type and None != posy and None != posx:
1459         if type not in world_db["ThingTypes"] \
1460            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
1461             print("Ignoring: Illegal value for thing type or position.")
1462         else:
1463             memthing = (type, posy, posx)
1464             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
1465
1466
1467 def setter_map(maptype):
1468     """Set (world or Thing's) map of maptype's int(str_int)-th line to mapline.
1469
1470     If no map of maptype exists yet, initialize it with ' ' bytes first.
1471     """
1472
1473     def valid_map_line(str_int, mapline):
1474         val = integer_test(str_int, 0, 255)
1475         if None != val:
1476             if val >= world_db["MAP_LENGTH"]:
1477                 print("Illegal value for map line number.")
1478             elif len(mapline) != world_db["MAP_LENGTH"]:
1479                 print("Map line length is unequal map width.")
1480             else:
1481                 return val
1482         return None
1483
1484     def nonThingMap_helper(str_int, mapline):
1485         val = valid_map_line(str_int, mapline)
1486         if None != val:
1487             length = world_db["MAP_LENGTH"]
1488             if not "MAP" in world_db:
1489                 map = bytearray(b' ' * (length ** 2))
1490             else:
1491                 map = world_db["MAP"]
1492             map[val * length:(val * length) + length] = mapline.encode()
1493             if not "MAP" in world_db:
1494                 world_db["MAP"] = map
1495
1496     @test_Thing_id
1497     def ThingMap_helper(str_int, mapline):
1498         val = valid_map_line(str_int, mapline)
1499         if None != val:
1500             length = world_db["MAP_LENGTH"]
1501             if not world_db["Things"][command_tid.id][maptype]:
1502                 map = bytearray(b' ' * (length ** 2))
1503             else:
1504                 map = world_db["Things"][command_tid.id][maptype]
1505             map[val * length:(val * length) + length] = mapline.encode()
1506             if not world_db["Things"][command_tid.id][maptype]:
1507                 world_db["Things"][command_tid.id][maptype] = map
1508
1509     return nonThingMap_helper if maptype == "MAP" else ThingMap_helper
1510
1511
1512 def setter_tpos(axis):
1513     """Generate setter for T_POSX or  T_POSY of selected Thing.
1514
1515     If world is active, rebuilds animate things' fovmap, player's memory map.
1516     """
1517     @test_Thing_id
1518     def helper(str_int):
1519         val = integer_test(str_int, 0, 255)
1520         if None != val:
1521             if val < world_db["MAP_LENGTH"]:
1522                 world_db["Things"][command_tid.id]["T_POS" + axis] = val
1523                 if world_db["WORLD_ACTIVE"] \
1524                    and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
1525                     build_fov_map(world_db["Things"][command_tid.id])
1526                     if 0 == command_tid.id:
1527                         update_map_memory(world_db["Things"][command_tid.id])
1528             else:
1529                 print("Ignoring: Position is outside of map.")
1530     return helper
1531
1532
1533 def command_ttid(id_string):
1534     """Set ID of ThingType to manipulate. ID unused? Create new one.
1535
1536     Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
1537     """
1538     id = id_setter(id_string, "ThingTypes", command_ttid)
1539     if None != id:
1540         world_db["ThingTypes"][id] = {
1541             "TT_NAME": "(none)",
1542             "TT_CONSUMABLE": 0,
1543             "TT_LIFEPOINTS": 0,
1544             "TT_PROLIFERATE": 0,
1545             "TT_START_NUMBER": 0,
1546             "TT_STORAGE": 0, # #
1547             "TT_SYMBOL": "?",
1548             "TT_CORPSE_ID": id
1549         }
1550
1551
1552 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
1553
1554
1555 @test_ThingType_id
1556 def command_ttname(name):
1557     """Set TT_NAME of selected ThingType."""
1558     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
1559
1560
1561 @test_ThingType_id
1562 def command_ttsymbol(char):
1563     """Set TT_SYMBOL of selected ThingType. """
1564     if 1 == len(char):
1565         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
1566     else:
1567         print("Ignoring: Argument must be single character.")
1568
1569
1570 @test_ThingType_id
1571 def command_ttcorpseid(str_int):
1572     """Set TT_CORPSE_ID of selected ThingType."""
1573     val = integer_test(str_int, 0)
1574     if None != val:
1575         if val in world_db["ThingTypes"]:
1576             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
1577         else:
1578             print("Ignoring: Corpse ID belongs to no known ThignType.")
1579
1580
1581 def command_taid(id_string):
1582     """Set ID of ThingAction to manipulate. ID unused? Create new one.
1583
1584     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
1585     """
1586     id = id_setter(id_string, "ThingActions", command_taid, True)
1587     if None != id:
1588         world_db["ThingActions"][id] = {
1589             "TA_EFFORT": 1,
1590             "TA_NAME": "wait"
1591         }
1592
1593
1594 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
1595
1596
1597 @test_ThingAction_id
1598 def command_taname(name):
1599     """Set TA_NAME of selected ThingAction.
1600
1601     The name must match a valid thing action function. If after the name
1602     setting no ThingAction with name "wait" remains, call set_world_inactive().
1603     """
1604     if name == "wait" or name == "move" or name == "use" or name == "drop" \
1605        or name == "pick_up":
1606         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
1607         if 1 == world_db["WORLD_ACTIVE"]:
1608             wait_defined = False
1609             for id in world_db["ThingActions"]:
1610                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
1611                     wait_defined = True
1612                     break
1613             if not wait_defined:
1614                 set_world_inactive()
1615     else:
1616         print("Ignoring: Invalid action name.")
1617     # In contrast to the original,naming won't map a function to a ThingAction.
1618
1619
1620 def command_ai():
1621     """Call ai() on player Thing, then turn_over()."""
1622     ai(world_db["Things"][0])
1623     turn_over()
1624
1625
1626 """Commands database.
1627
1628 Map command start tokens to ([0]) number of expected command arguments, ([1])
1629 the command's meta-ness (i.e. is it to be written to the record file, is it to
1630 be ignored in replay mode if read from server input file), and ([2]) a function
1631 to be called on it.
1632 """
1633 commands_db = {
1634     "QUIT": (0, True, command_quit),
1635     "PING": (0, True, command_ping),
1636     "THINGS_HERE": (2, True, command_thingshere),
1637     "MAKE_WORLD": (1, False, command_makeworld),
1638     "SEED_RANDOMNESS": (1, False, command_seedrandomness),
1639     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1640     "GOD_MOOD": (1, False, setter(None, "GOD_MOOD", -32768, 32767)),  # #
1641     "GOD_FAVOR": (1, False, setter(None, "GOD_FAVOR", -32768, 32767)),  # #
1642     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0)),
1643     "MAP_LENGTH": (1, False, command_maplength),
1644     "WORLD_ACTIVE": (1, False, command_worldactive),
1645     "MAP": (2, False, setter_map("MAP")),
1646     "TA_ID": (1, False, command_taid),
1647     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1648     "TA_NAME": (1, False, command_taname),
1649     "TT_ID": (1, False, command_ttid),
1650     "TT_NAME": (1, False, command_ttname),
1651     "TT_SYMBOL": (1, False, command_ttsymbol),
1652     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1653     "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1654                                        0, 65535)),
1655     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1656                                          0, 255)),
1657     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1658                                         0, 255)),
1659     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1660     "TT_STORAGE": (1, False, setter("ThingType", "TT_STORAGE", 0, 255)),  # #
1661     "T_ID": (1, False, command_tid),
1662     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1663     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1664     "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1665     "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1666     "T_COMMAND": (1, False, command_tcommand),
1667     "T_TYPE": (1, False, command_ttype),
1668     "T_CARRIES": (1, False, command_tcarries),
1669     "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1670     "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1671     "T_MEMTHING": (3, False, command_tmemthing),
1672     "T_POSY": (1, False, setter_tpos("Y")),
1673     "T_POSX": (1, False, setter_tpos("X")),
1674     "T_PLAYERDROP": (1, False, setter("Thing", "T_PLAYERDROP", 0, 1)),  # #
1675     "wait": (0, False, play_commander("wait")),
1676     "move": (1, False, play_commander("move")),
1677     "pick_up": (0, False, play_commander("pick_up")),
1678     "drop": (1, False, play_commander("drop", True)),
1679     "use": (1, False, play_commander("use", True)),
1680     "ai": (0, False, command_ai)
1681 }
1682
1683
1684 """World state database. With sane default values. (Randomness is in rand.)"""
1685 world_db = {
1686     "TURN": 0,
1687     "MAP_LENGTH": 64,
1688     "PLAYER_TYPE": 0,
1689     "WORLD_ACTIVE": 0,
1690     "GOD_MOOD": 0,  # #
1691     "GOD_FAVOR": 0,  # #
1692     "ThingActions": {},
1693     "ThingTypes": {},
1694     "Things": {}
1695 }
1696
1697 """Mapping of direction names to internal direction chars."""
1698 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
1699                  "west": "s", "north-west": "w", "north-east": "e"}
1700
1701 """File IO database."""
1702 io_db = {
1703     "path_save": "save",
1704     "path_record": "record_save",
1705     "path_worldconf": "confserver/world",
1706     "path_server": "server/",
1707     "path_in": "server/in",
1708     "path_out": "server/out",
1709     "path_worldstate": "server/worldstate",
1710     "tmp_suffix": "_tmp",
1711     "kicked_by_rival": False,
1712     "worldstate_updateable": False
1713 }
1714
1715
1716 try:
1717     libpr = prep_library()
1718     rand = RandomnessIO()
1719     opts = parse_command_line_arguments()
1720     if opts.savefile:
1721         io_db["path_save"] = opts.savefile
1722         io_db["path_record"] = "record_" + opts.savefile
1723     setup_server_io()
1724     if opts.verbose:
1725         io_db["verbose"] = True
1726     if None != opts.replay:
1727         replay_game()
1728     else:
1729         play_game()
1730 except SystemExit as exit:
1731     print("ABORTING: " + exit.args[0])
1732 except:
1733     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
1734     raise
1735 finally:
1736     cleanup_server_io()