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):
 180             string = ""
 181             if world_db["Things"][id][key]:
 182                 map = world_db["Things"][id][key]
 183                 length = world_db["MAP_LENGTH"]
 184                 for i in range(length):
 185                     line = map[i * length:(i * length) + length].decode()
 186                     string = string + key + " " + str(i) + " " + quote(line) \
 187                              + "\n"
 188             return string
 189         return helper
 190
 191     def memthing(id):
 192         string = ""
 193         for memthing in world_db["Things"][id]["T_MEMTHING"]:
 194             string = string + "T_MEMTHING " + str(memthing[0]) + " " + \
 195                      str(memthing[1]) + " " + str(memthing[2]) + "\n"
 196         return string
 197
 198     def helper(category, id_string, special_keys={}):
 199         string = ""
 200         for id in world_db[category]:
 201             string = string + id_string + " " + str(id) + "\n"
 202             for key in world_db[category][id]:
 203                 if not key in special_keys:
 204                     x = world_db[category][id][key]
 205                     argument = quote(x) if str == type(x) else str(x)
 206                     string = string + key + " " + argument + "\n"
 207                 elif special_keys[key]:
 208                     string = string + special_keys[key](id)
 209         return string
 210
 211     string = ""
 212     for key in world_db:
 213         if dict != type(world_db[key]) and key != "MAP" and \
 214            key != "WORLD_ACTIVE" and key != "SEED_MAP":
 215             string = string + key + " " + str(world_db[key]) + "\n"
 216     string = string + "SEED_MAP " + str(world_db["SEED_MAP"]) + "\n"
 217     string = string + helper("ThingActions", "TA_ID")
 218     string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
 219     for id in world_db["ThingTypes"]:
 220         string = string + "TT_ID " + str(id) + "\n" + "TT_CORPSE_ID " + \
 221                  str(world_db["ThingTypes"][id]["TT_CORPSE_ID"]) + "\n"
 222     string = string + helper("Things", "T_ID",
 223                              {"T_CARRIES": False, "carried": False,
 224                               "T_MEMMAP": mapsetter("T_MEMMAP"),
 225                               "T_MEMTHING": memthing, "fovmap": False,
 226                               "T_MEMDEPTHMAP": mapsetter("T_MEMDEPTHMAP")})
 227     for id in world_db["Things"]:
 228         if [] != world_db["Things"][id]["T_CARRIES"]:
 229             string = string + "T_ID " + str(id) + "\n"
 230             for carried_id in world_db["Things"][id]["T_CARRIES"]:
 231                 string = string + "T_CARRIES " + str(carried_id) + "\n"
 232     string = string + "SEED_RANDOMNESS " + str(rand.seed) + "\n" + \
 233              "WORLD_ACTIVE " + str(world_db["WORLD_ACTIVE"])
 234     atomic_write(io_db["path_save"], string)
 235
 236
 237 def obey_lines_in_file(path, name, do_record=False):
 238     """Call obey() on each line of path's file, use name in input prefix."""
 239     file = open(path, "r")
 240     line_n = 1
 241     for line in file.readlines():
 242         obey(line.rstrip(), name + "file line " + str(line_n),
 243              do_record=do_record)
 244         line_n = line_n + 1
 245     file.close()
 246
 247
 248 def parse_command_line_arguments():
 249     """Return settings values read from command line arguments."""
 250     parser = argparse.ArgumentParser()
 251     parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
 252                         action='store')
 253     parser.add_argument('-l', nargs="?", const="save", dest='savefile',
 254                         action="store")
 255     parser.add_argument('-v', dest='verbose', action='store_true')
 256     opts, unknown = parser.parse_known_args()
 257     return opts
 258
 259
 260 def server_test():
 261     """Ensure valid server out file belonging to current process.
 262
 263     This is done by comparing io_db["teststring"] to what's found at the start
 264     of the current file at io_db["path_out"]. On failure, set
 265     io_db["kicked_by_rival"] and raise SystemExit.
 266     """
 267     if not os.access(io_db["path_out"], os.F_OK):
 268         raise SystemExit("Server output file has disappeared.")
 269     file = open(io_db["path_out"], "r")
 270     test = file.readline().rstrip("\n")
 271     file.close()
 272     if test != io_db["teststring"]:
 273         io_db["kicked_by_rival"] = True
 274         msg = "Server test string in server output file does not match. This" \
 275               " indicates that the current server process has been " \
 276               "superseded by another one."
 277         raise SystemExit(msg)
 278
 279
 280 def read_command():
 281     """Return next newline-delimited command from server in file.
 282
 283     Keep building return string until a newline is encountered. Pause between
 284     unsuccessful reads, and after too much waiting, run server_test().
 285     """
 286     wait_on_fail = 0.03333
 287     max_wait = 5
 288     now = time.time()
 289     command = ""
 290     while True:
 291         add = io_db["file_in"].readline()
 292         if len(add) > 0:
 293             command = command + add
 294             if len(command) > 0 and "\n" == command[-1]:
 295                 command = command[:-1]
 296                 break
 297         else:
 298             time.sleep(wait_on_fail)
 299             if now + max_wait < time.time():
 300                 server_test()
 301                 now = time.time()
 302     return command
 303
 304
 305 def try_worldstate_update():
 306     """Write worldstate file if io_db["worldstate_updateable"] is set."""
 307     if io_db["worldstate_updateable"]:
 308
 309         def draw_visible_Things(map, run):
 310             for id in world_db["Things"]:
 311                 type = world_db["Things"][id]["T_TYPE"]
 312                 consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 313                 alive = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]
 314                 if (0 == run and not consumable and not alive) \
 315                    or (1 == run and consumable and not alive) \
 316                    or (2 == run and alive):
 317                     y = world_db["Things"][id]["T_POSY"]
 318                     x = world_db["Things"][id]["T_POSX"]
 319                     fovflag = world_db["Things"][0]["fovmap"][(y * length) + x]
 320                     if 'v' == chr(fovflag):
 321                         c = world_db["ThingTypes"][type]["TT_SYMBOL"]
 322                         map[(y * length) + x] = ord(c)
 323
 324         def write_map(string, map):
 325             for i in range(length):
 326                 line = map[i * length:(i * length) + length].decode()
 327                 string = string + line + "\n"
 328             return string
 329
 330         inventory = ""
 331         if [] == world_db["Things"][0]["T_CARRIES"]:
 332             inventory = "(none)\n"
 333         else:
 334             for id in world_db["Things"][0]["T_CARRIES"]:
 335                 type_id = world_db["Things"][id]["T_TYPE"]
 336                 name = world_db["ThingTypes"][type_id]["TT_NAME"]
 337                 inventory = inventory + name + "\n"
 338         # # 7DRL additions:  GOD_MOOD, GOD_FAVOR
 339         string = str(world_db["TURN"]) + "\n" + \
 340                  str(world_db["GOD_MOOD"]) + "\n" + \
 341                  str(world_db["GOD_FAVOR"]) + "\n" + \
 342                  str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
 343                  str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
 344                  inventory + "%\n" + \
 345                  str(world_db["Things"][0]["T_POSY"]) + "\n" + \
 346                  str(world_db["Things"][0]["T_POSX"]) + "\n" + \
 347                  str(world_db["MAP_LENGTH"]) + "\n"
 348         length = world_db["MAP_LENGTH"]
 349         fov = bytearray(b' ' * (length ** 2))
 350         for pos in range(length ** 2):
 351             if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
 352                 fov[pos] = world_db["MAP"][pos]
 353         for i in range(3):
 354             draw_visible_Things(fov, i)
 355         string = write_map(string, fov)
 356         mem = world_db["Things"][0]["T_MEMMAP"][:]
 357         for i in range(2):
 358             for mt in world_db["Things"][0]["T_MEMTHING"]:
 359                 consumable = world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]
 360                 if (i == 0 and not consumable) or (i == 1 and consumable):
 361                     c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
 362                     mem[(mt[1] * length) + mt[2]] = ord(c)
 363         string = write_map(string, mem)
 364         atomic_write(io_db["path_worldstate"], string, delete=False)
 365         strong_write(io_db["file_out"], "WORLD_UPDATED\n")
 366         io_db["worldstate_updateable"] = False
 367
 368
 369 def replay_game():
 370     """Replay game from record file.
 371
 372     Use opts.replay as breakpoint turn to which to replay automatically before
 373     switching to manual input by non-meta commands in server input file
 374     triggering further reads of record file. Ensure opts.replay is at least 1.
 375     Run try_worldstate_update() before each interactive obey()/read_command().
 376     """
 377     if opts.replay < 1:
 378         opts.replay = 1
 379     print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
 380           " (if so late a turn is to be found).")
 381     if not os.access(io_db["path_record"], os.F_OK):
 382         raise SystemExit("No record file found to replay.")
 383     io_db["file_record"] = open(io_db["path_record"], "r")
 384     io_db["file_record"].prefix = "record file line "
 385     io_db["file_record"].line_n = 1
 386     while world_db["TURN"] < opts.replay:
 387         line = io_db["file_record"].readline()
 388         if "" == line:
 389             break
 390         obey(line.rstrip(), io_db["file_record"].prefix
 391              + str(io_db["file_record"].line_n))
 392         io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 393     while True:
 394         try_worldstate_update()
 395         obey(read_command(), "in file", replay=True)
 396
 397
 398 def play_game():
 399     """Play game by server input file commands. Before, load save file found.
 400
 401     If no save file is found, a new world is generated from the commands in the
 402     world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
 403     command and all that follow via the server input file. Run
 404     try_worldstate_update() before each interactive obey()/read_command().
 405     """
 406     if os.access(io_db["path_save"], os.F_OK):
 407         obey_lines_in_file(io_db["path_save"], "save")
 408     else:
 409         if not os.access(io_db["path_worldconf"], os.F_OK):
 410             msg = "No world config file from which to start a new world."
 411             raise SystemExit(msg)
 412         obey_lines_in_file(io_db["path_worldconf"], "world config ",
 413                            do_record=True)
 414         obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
 415     while True:
 416         try_worldstate_update()
 417         obey(read_command(), "in file", do_record=True)
 418
 419
 420 def remake_map():
 421     """(Re-)make island map.
 422
 423     Let "~" represent water, "." land, "X" trees: Build island shape randomly,
 424     start with one land cell in the middle, then go into cycle of repeatedly
 425     selecting a random sea cell and transforming it into land if it is neighbor
 426     to land. The cycle ends when a land cell is due to be created at the map's
 427     border. Then put some trees on the map (TODO: more precise algorithm desc).
 428     """
 429     def is_neighbor(coordinates, type):
 430         y = coordinates[0]
 431         x = coordinates[1]
 432         length = world_db["MAP_LENGTH"]
 433         ind = y % 2
 434         diag_west = x + (ind > 0)
 435         diag_east = x + (ind < (length - 1))
 436         pos = (y * length) + x
 437         if (y > 0 and diag_east
 438             and type == chr(world_db["MAP"][pos - length + ind])) \
 439            or (x < (length - 1)
 440                and type == chr(world_db["MAP"][pos + 1])) \
 441            or (y < (length - 1) and diag_east
 442                and type == chr(world_db["MAP"][pos + length + ind])) \
 443            or (y > 0 and diag_west
 444                and type == chr(world_db["MAP"][pos - length - (not ind)])) \
 445            or (x > 0
 446                and type == chr(world_db["MAP"][pos - 1])) \
 447            or (y < (length - 1) and diag_west
 448                and type == chr(world_db["MAP"][pos + length - (not ind)])):
 449             return True
 450         return False
 451     store_seed = rand.seed
 452     rand.seed = world_db["SEED_MAP"]
 453     world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
 454     length = world_db["MAP_LENGTH"]
 455     add_half_width = (not (length % 2)) * int(length / 2)
 456     world_db["MAP"][int((length ** 2) / 2) + add_half_width] = ord(".")
 457     while (1):
 458         y = rand.next() % length
 459         x = rand.next() % length
 460         pos = (y * length) + x
 461         if "~" == chr(world_db["MAP"][pos]) and is_neighbor((y, x), "."):
 462             if y == 0 or y == (length - 1) or x == 0 or x == (length - 1):
 463                 break
 464             world_db["MAP"][pos] = ord(".")
 465     n_trees = int((length ** 2) / 16)
 466     i_trees = 0
 467     while (i_trees <= n_trees):
 468         single_allowed = rand.next() % 32
 469         y = rand.next() % length
 470         x = rand.next() % length
 471         pos = (y * length) + x
 472         if "." == chr(world_db["MAP"][pos]) \
 473           and ((not single_allowed) or is_neighbor((y, x), "X")):
 474             world_db["MAP"][pos] = ord("X")
 475             i_trees += 1
 476     rand.seed = store_seed
 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_seedmap(seed_string):
1260     """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
1261     setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
1262     remake_map()
1263
1264
1265 def command_makeworld(seed_string):
1266     """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
1267
1268     Seed rand with seed, fill it into world_db["SEED_MAP"]. Do more only with a
1269     "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType of
1270     TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
1271     and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
1272     according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
1273     of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
1274     other. Init player's memory map. Write "NEW_WORLD" line to out file.
1275     """
1276
1277     def free_pos():
1278         i = 0
1279         while 1:
1280             err = "Space to put thing on too hard to find. Map too small?"
1281             while 1:
1282                 y = rand.next() % world_db["MAP_LENGTH"]
1283                 x = rand.next() % world_db["MAP_LENGTH"]
1284                 if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
1285                     break
1286                 i += 1
1287                 if i == 65535:
1288                     raise SystemExit(err)
1289             # Replica of C code, wrongly ignores animatedness of new Thing.
1290             pos_clear = (0 == len([id for id in world_db["Things"]
1291                                    if world_db["Things"][id]["T_LIFEPOINTS"]
1292                                    if world_db["Things"][id]["T_POSY"] == y
1293                                    if world_db["Things"][id]["T_POSX"] == x]))
1294             if pos_clear:
1295                 break
1296         return (y, x)
1297
1298     val = integer_test(seed_string, 0, 4294967295)
1299     if None == val:
1300         return
1301     rand.seed = val
1302     world_db["SEED_MAP"] = val
1303     player_will_be_generated = False
1304     playertype = world_db["PLAYER_TYPE"]
1305     for ThingType in world_db["ThingTypes"]:
1306         if playertype == ThingType:
1307             if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
1308                 player_will_be_generated = True
1309             break
1310     if not player_will_be_generated:
1311         print("Ignoring beyond SEED_MAP: " +
1312               "No player type with start number >0 defined.")
1313         return
1314     wait_action = False
1315     for ThingAction in world_db["ThingActions"]:
1316         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1317             wait_action = True
1318     if not wait_action:
1319         print("Ignoring beyond SEED_MAP: " +
1320               "No thing action with name 'wait' defined.")
1321         return
1322     world_db["Things"] = {}
1323     remake_map()
1324     world_db["WORLD_ACTIVE"] = 1
1325     world_db["TURN"] = 1
1326     for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
1327         id = id_setter(-1, "Things")
1328         world_db["Things"][id] = new_Thing(playertype, free_pos())
1329     update_map_memory(world_db["Things"][0])
1330     for type in world_db["ThingTypes"]:
1331         for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
1332             if type != playertype:
1333                 id = id_setter(-1, "Things")
1334                 world_db["Things"][id] = new_Thing(type, free_pos())
1335     strong_write(io_db["file_out"], "NEW_WORLD\n")
1336
1337
1338 def command_maplength(maplength_string):
1339     """Redefine map length. Invalidate map, therefore lose all things on it."""
1340     val = integer_test(maplength_string, 1, 256)
1341     if None != val:
1342         world_db["MAP_LENGTH"] = val
1343         set_world_inactive()
1344         world_db["Things"] = {}
1345         libpr.set_maplength(val)
1346
1347
1348 def command_worldactive(worldactive_string):
1349     """Toggle world_db["WORLD_ACTIVE"] if possible.
1350
1351     An active world can always be set inactive. An inactive world can only be
1352     set active with a "wait" ThingAction, and a player Thing (of ID 0), and a
1353     map. On activation, rebuild all Things' FOVs, and the player's map memory.
1354     """
1355     val = integer_test(worldactive_string, 0, 1)
1356     if val:
1357         if 0 != world_db["WORLD_ACTIVE"]:
1358             if 0 == val:
1359                 set_world_inactive()
1360             else:
1361                 print("World already active.")
1362         elif 0 == world_db["WORLD_ACTIVE"]:
1363             wait_exists = False
1364             for ThingAction in world_db["ThingActions"]:
1365                 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1366                     wait_exists = True
1367                     break
1368             player_exists = False
1369             for Thing in world_db["Things"]:
1370                 if 0 == Thing:
1371                     player_exists = True
1372                     break
1373             if wait_exists and player_exists and "MAP" in world_db:
1374                 for id in world_db["Things"]:
1375                     if world_db["Things"][id]["T_LIFEPOINTS"]:
1376                         build_fov_map(world_db["Things"][id])
1377                         if 0 == id:
1378                             update_map_memory(world_db["Things"][id], False)
1379                 world_db["WORLD_ACTIVE"] = 1
1380             else:
1381                 print("Ignoring: Not all conditions for world activation met.")
1382
1383
1384 def test_for_id_maker(object, category):
1385     """Return decorator testing for object having "id" attribute."""
1386     def decorator(f):
1387         def helper(*args):
1388             if hasattr(object, "id"):
1389                 f(*args)
1390             else:
1391                 print("Ignoring: No " + category +
1392                       " defined to manipulate yet.")
1393         return helper
1394     return decorator
1395
1396
1397 def command_tid(id_string):
1398     """Set ID of Thing to manipulate. ID unused? Create new one.
1399
1400     Default new Thing's type to the first available ThingType, others: zero.
1401     """
1402     id = id_setter(id_string, "Things", command_tid)
1403     if None != id:
1404         if world_db["ThingTypes"] == {}:
1405             print("Ignoring: No ThingType to settle new Thing in.")
1406             return
1407         type = list(world_db["ThingTypes"].keys())[0]
1408         world_db["Things"][id] = new_Thing(type)
1409
1410
1411 test_Thing_id = test_for_id_maker(command_tid, "Thing")
1412
1413
1414 @test_Thing_id
1415 def command_tcommand(str_int):
1416     """Set T_COMMAND of selected Thing."""
1417     val = integer_test(str_int, 0)
1418     if None != val:
1419         if 0 == val or val in world_db["ThingActions"]:
1420             world_db["Things"][command_tid.id]["T_COMMAND"] = val
1421         else:
1422             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
1423
1424
1425 @test_Thing_id
1426 def command_ttype(str_int):
1427     """Set T_TYPE of selected Thing."""
1428     val = integer_test(str_int, 0)
1429     if None != val:
1430         if val in world_db["ThingTypes"]:
1431             world_db["Things"][command_tid.id]["T_TYPE"] = val
1432         else:
1433             print("Ignoring: ThingType ID belongs to no known ThingType.")
1434
1435
1436 @test_Thing_id
1437 def command_tcarries(str_int):
1438     """Append int(str_int) to T_CARRIES of selected Thing.
1439
1440     The ID int(str_int) must not be of the selected Thing, and must belong to a
1441     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
1442     """
1443     val = integer_test(str_int, 0)
1444     if None != val:
1445         if val == command_tid.id:
1446             print("Ignoring: Thing cannot carry itself.")
1447         elif val in world_db["Things"] \
1448              and not world_db["Things"][val]["carried"]:
1449             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
1450             world_db["Things"][val]["carried"] = True
1451         else:
1452             print("Ignoring: Thing not available for carrying.")
1453     # Note that the whole carrying structure is different from the C version:
1454     # Carried-ness is marked by a "carried" flag, not by Things containing
1455     # Things internally.
1456
1457
1458 @test_Thing_id
1459 def command_tmemthing(str_t, str_y, str_x):
1460     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
1461
1462     The type must fit to an existing ThingType, and the position into the map.
1463     """
1464     type = integer_test(str_t, 0)
1465     posy = integer_test(str_y, 0, 255)
1466     posx = integer_test(str_x, 0, 255)
1467     if None != type and None != posy and None != posx:
1468         if type not in world_db["ThingTypes"] \
1469            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
1470             print("Ignoring: Illegal value for thing type or position.")
1471         else:
1472             memthing = (type, posy, posx)
1473             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
1474
1475
1476 def setter_map(maptype):
1477     """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
1478
1479     If Thing has no map of maptype yet, initialize it with ' ' bytes first.
1480     """
1481     @test_Thing_id
1482     def helper(str_int, mapline):
1483         val = integer_test(str_int, 0, 255)
1484         if None != val:
1485             if val >= world_db["MAP_LENGTH"]:
1486                 print("Illegal value for map line number.")
1487             elif len(mapline) != world_db["MAP_LENGTH"]:
1488                 print("Map line length is unequal map width.")
1489             else:
1490                 length = world_db["MAP_LENGTH"]
1491                 map = None
1492                 if not world_db["Things"][command_tid.id][maptype]:
1493                     map = bytearray(b' ' * (length ** 2))
1494                 else:
1495                     map = world_db["Things"][command_tid.id][maptype]
1496                 map[val * length:(val * length) + length] = mapline.encode()
1497                 world_db["Things"][command_tid.id][maptype] = map
1498     return helper
1499
1500
1501 def setter_tpos(axis):
1502     """Generate setter for T_POSX or  T_POSY of selected Thing.
1503
1504     If world is active, rebuilds animate things' fovmap, player's memory map.
1505     """
1506     @test_Thing_id
1507     def helper(str_int):
1508         val = integer_test(str_int, 0, 255)
1509         if None != val:
1510             if val < world_db["MAP_LENGTH"]:
1511                 world_db["Things"][command_tid.id]["T_POS" + axis] = val
1512                 if world_db["WORLD_ACTIVE"] \
1513                    and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
1514                     build_fov_map(world_db["Things"][command_tid.id])
1515                     if 0 == command_tid.id:
1516                         update_map_memory(world_db["Things"][command_tid.id])
1517             else:
1518                 print("Ignoring: Position is outside of map.")
1519     return helper
1520
1521
1522 def command_ttid(id_string):
1523     """Set ID of ThingType to manipulate. ID unused? Create new one.
1524
1525     Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
1526     """
1527     id = id_setter(id_string, "ThingTypes", command_ttid)
1528     if None != id:
1529         world_db["ThingTypes"][id] = {
1530             "TT_NAME": "(none)",
1531             "TT_CONSUMABLE": 0,
1532             "TT_LIFEPOINTS": 0,
1533             "TT_PROLIFERATE": 0,
1534             "TT_START_NUMBER": 0,
1535             "TT_STORAGE": 0, # #
1536             "TT_SYMBOL": "?",
1537             "TT_CORPSE_ID": id
1538         }
1539
1540
1541 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
1542
1543
1544 @test_ThingType_id
1545 def command_ttname(name):
1546     """Set TT_NAME of selected ThingType."""
1547     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
1548
1549
1550 @test_ThingType_id
1551 def command_ttsymbol(char):
1552     """Set TT_SYMBOL of selected ThingType. """
1553     if 1 == len(char):
1554         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
1555     else:
1556         print("Ignoring: Argument must be single character.")
1557
1558
1559 @test_ThingType_id
1560 def command_ttcorpseid(str_int):
1561     """Set TT_CORPSE_ID of selected ThingType."""
1562     val = integer_test(str_int, 0)
1563     if None != val:
1564         if val in world_db["ThingTypes"]:
1565             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
1566         else:
1567             print("Ignoring: Corpse ID belongs to no known ThignType.")
1568
1569
1570 def command_taid(id_string):
1571     """Set ID of ThingAction to manipulate. ID unused? Create new one.
1572
1573     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
1574     """
1575     id = id_setter(id_string, "ThingActions", command_taid, True)
1576     if None != id:
1577         world_db["ThingActions"][id] = {
1578             "TA_EFFORT": 1,
1579             "TA_NAME": "wait"
1580         }
1581
1582
1583 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
1584
1585
1586 @test_ThingAction_id
1587 def command_taname(name):
1588     """Set TA_NAME of selected ThingAction.
1589
1590     The name must match a valid thing action function. If after the name
1591     setting no ThingAction with name "wait" remains, call set_world_inactive().
1592     """
1593     if name == "wait" or name == "move" or name == "use" or name == "drop" \
1594        or name == "pick_up":
1595         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
1596         if 1 == world_db["WORLD_ACTIVE"]:
1597             wait_defined = False
1598             for id in world_db["ThingActions"]:
1599                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
1600                     wait_defined = True
1601                     break
1602             if not wait_defined:
1603                 set_world_inactive()
1604     else:
1605         print("Ignoring: Invalid action name.")
1606     # In contrast to the original,naming won't map a function to a ThingAction.
1607
1608
1609 def command_ai():
1610     """Call ai() on player Thing, then turn_over()."""
1611     ai(world_db["Things"][0])
1612     turn_over()
1613
1614
1615 """Commands database.
1616
1617 Map command start tokens to ([0]) number of expected command arguments, ([1])
1618 the command's meta-ness (i.e. is it to be written to the record file, is it to
1619 be ignored in replay mode if read from server input file), and ([2]) a function
1620 to be called on it.
1621 """
1622 commands_db = {
1623     "QUIT": (0, True, command_quit),
1624     "PING": (0, True, command_ping),
1625     "THINGS_HERE": (2, True, command_thingshere),
1626     "MAKE_WORLD": (1, False, command_makeworld),
1627     "SEED_MAP": (1, False, command_seedmap),
1628     "SEED_RANDOMNESS": (1, False, command_seedrandomness),
1629     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1630     "GOD_MOOD": (1, False, setter(None, "GOD_MOOD", -32768, 32767)),  # #
1631     "GOD_FAVOR": (1, False, setter(None, "GOD_FAVOR", -32768, 32767)),  # #
1632     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0)),
1633     "MAP_LENGTH": (1, False, command_maplength),
1634     "WORLD_ACTIVE": (1, False, command_worldactive),
1635     "TA_ID": (1, False, command_taid),
1636     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1637     "TA_NAME": (1, False, command_taname),
1638     "TT_ID": (1, False, command_ttid),
1639     "TT_NAME": (1, False, command_ttname),
1640     "TT_SYMBOL": (1, False, command_ttsymbol),
1641     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1642     "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1643                                        0, 65535)),
1644     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1645                                          0, 255)),
1646     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1647                                         0, 255)),
1648     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1649     "TT_STORAGE": (1, False, setter("ThingType", "TT_STORAGE", 0, 255)),  # #
1650     "T_ID": (1, False, command_tid),
1651     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1652     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1653     "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1654     "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1655     "T_COMMAND": (1, False, command_tcommand),
1656     "T_TYPE": (1, False, command_ttype),
1657     "T_CARRIES": (1, False, command_tcarries),
1658     "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1659     "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1660     "T_MEMTHING": (3, False, command_tmemthing),
1661     "T_POSY": (1, False, setter_tpos("Y")),
1662     "T_POSX": (1, False, setter_tpos("X")),
1663     "T_PLAYERDROP": (1, False, setter("Thing", "T_PLAYERDROP", 0, 1)),  # #
1664     "wait": (0, False, play_commander("wait")),
1665     "move": (1, False, play_commander("move")),
1666     "pick_up": (0, False, play_commander("pick_up")),
1667     "drop": (1, False, play_commander("drop", True)),
1668     "use": (1, False, play_commander("use", True)),
1669     "ai": (0, False, command_ai)
1670 }
1671
1672
1673 """World state database. With sane default values. (Randomness is in rand.)"""
1674 world_db = {
1675     "TURN": 0,
1676     "MAP_LENGTH": 64,
1677     "SEED_MAP": 0,
1678     "PLAYER_TYPE": 0,
1679     "WORLD_ACTIVE": 0,
1680     "GOD_MOOD": 0,  # #
1681     "GOD_FAVOR": 0,  # #
1682     "ThingActions": {},
1683     "ThingTypes": {},
1684     "Things": {}
1685 }
1686
1687 """Mapping of direction names to internal direction chars."""
1688 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
1689                  "west": "s", "north-west": "w", "north-east": "e"}
1690
1691 """File IO database."""
1692 io_db = {
1693     "path_save": "save",
1694     "path_record": "record_save",
1695     "path_worldconf": "confserver/world",
1696     "path_server": "server/",
1697     "path_in": "server/in",
1698     "path_out": "server/out",
1699     "path_worldstate": "server/worldstate",
1700     "tmp_suffix": "_tmp",
1701     "kicked_by_rival": False,
1702     "worldstate_updateable": False
1703 }
1704
1705
1706 try:
1707     libpr = prep_library()
1708     rand = RandomnessIO()
1709     opts = parse_command_line_arguments()
1710     if opts.savefile:
1711         io_db["path_save"] = opts.savefile
1712         io_db["path_record"] = "record_" + opts.savefile
1713     setup_server_io()
1714     if opts.verbose:
1715         io_db["verbose"] = True
1716     if None != opts.replay:
1717         replay_game()
1718     else:
1719         play_game()
1720 except SystemExit as exit:
1721     print("ABORTING: " + exit.args[0])
1722 except:
1723     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
1724     raise
1725 finally:
1726     cleanup_server_io()