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

   1 #!/usr/bin/python3
   2
   3 # This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
   4 # or any later version. For details on its copyright, license, and warranties,
   5 # see the file NOTICE in the root directory of the PlomRogue source package.
   6
   7
   8 import argparse
   9 import errno
  10 import os
  11 import shlex
  12 import shutil
  13 import time
  14 import ctypes
  15
  16
  17 class RandomnessIO:
  18     """"Interface to libplomrogue's pseudo-randomness generator."""
  19
  20     def set_seed(self, seed):
  21         libpr.seed_rrand(1, seed)
  22
  23     def get_seed(self):
  24         return libpr.seed_rrand(0, 0)
  25
  26     def next(self):
  27         return libpr.rrand()
  28
  29     seed = property(get_seed, set_seed)
  30
  31
  32 def prep_library():
  33     """Prepare ctypes library at ./libplomrogue.so"""
  34     libpath = ("./libplomrogue.so")
  35     if not os.access(libpath, os.F_OK):
  36         raise SystemExit("No library " + libpath + ", run ./redo first?")
  37     libpr = ctypes.cdll.LoadLibrary(libpath)
  38     libpr.seed_rrand.restype = ctypes.c_uint32
  39     return libpr
  40
  41
  42 def c_pointer_to_bytearray(ba):
  43     """Return C char * pointer to ba."""
  44     type = ctypes.c_char * len(ba)
  45     return type.from_buffer(ba)
  46
  47
  48 def strong_write(file, string):
  49     """Apply write(string), then flush()."""
  50     file.write(string)
  51     file.flush()
  52
  53
  54 def setup_server_io():
  55     """Fill IO files DB with proper file( path)s. Write process IO test string.
  56
  57     Ensure IO files directory at server/. Remove any old input file if found.
  58     Set up new input file for reading, and new output file for writing. Start
  59     output file with process hash line of format PID + " " + floated UNIX time
  60     (io_db["teststring"]). Raise SystemExit if file is found at path of either
  61     record or save file plus io_db["tmp_suffix"].
  62     """
  63     def detect_atomic_leftover(path, tmp_suffix):
  64         path_tmp = path + tmp_suffix
  65         msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
  66               "aborted previous attempt to write '" + path + "'. Aborting " \
  67              "until matter is resolved by removing it from its current path."
  68         if os.access(path_tmp, os.F_OK):
  69             raise SystemExit(msg)
  70     io_db["teststring"] = str(os.getpid()) + " " + str(time.time())
  71     io_db["save_wait"] = 0
  72     io_db["verbose"] = False
  73     io_db["record_chunk"] = ""
  74     os.makedirs(io_db["path_server"], exist_ok=True)
  75     io_db["file_out"] = open(io_db["path_out"], "w")
  76     strong_write(io_db["file_out"], io_db["teststring"] + "\n")
  77     if os.access(io_db["path_in"], os.F_OK):
  78         os.remove(io_db["path_in"])
  79     io_db["file_in"] = open(io_db["path_in"], "w")
  80     io_db["file_in"].close()
  81     io_db["file_in"] = open(io_db["path_in"], "r")
  82     detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
  83     detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
  84
  85
  86 def cleanup_server_io():
  87     """Close and (if io_db["kicked_by_rival"] false) remove files in io_db."""
  88     def helper(file_key, path_key):
  89         if file_key in io_db:
  90             io_db[file_key].close()
  91         if not io_db["kicked_by_rival"] \
  92            and os.access(io_db[path_key], os.F_OK):
  93             os.remove(io_db[path_key])
  94     helper("file_in", "path_in")
  95     helper("file_out", "path_out")
  96     helper("file_worldstate", "path_worldstate")
  97     if "file_record" in io_db:
  98         io_db["file_record"].close()
  99
 100
 101 def obey(command, prefix, replay=False, do_record=False):
 102     """Call function from commands_db mapped to command's first token.
 103
 104     Tokenize command string with shlex.split(comments=True). If replay is set,
 105     a non-meta command from the commands_db merely triggers obey() on the next
 106     command from the records file. If not, non-meta commands set
 107     io_db["worldstate_updateable"] to world_db["WORLD_EXISTS"], and, if
 108     do_record is set, are recorded to io_db["record_chunk"], and save_world()
 109     is called (and io_db["record_chunk"] written) if 15 seconds have passed
 110     since the last time it was called. The prefix string is inserted into the
 111     server's input message between its beginning 'input ' and ':'. All activity
 112     is preceded by a server_test() call.
 113     """
 114     server_test()
 115     if io_db["verbose"]:
 116         print("input " + prefix + ": " + command)
 117     try:
 118         tokens = shlex.split(command, comments=True)
 119     except ValueError as err:
 120         print("Can't tokenize command string: " + str(err) + ".")
 121         return
 122     if len(tokens) > 0 and tokens[0] in commands_db \
 123        and len(tokens) == commands_db[tokens[0]][0] + 1:
 124         if commands_db[tokens[0]][1]:
 125             commands_db[tokens[0]][2](*tokens[1:])
 126         elif replay:
 127             print("Due to replay mode, reading command as 'go on in record'.")
 128             line = io_db["file_record"].readline()
 129             if len(line) > 0:
 130                 obey(line.rstrip(), io_db["file_record"].prefix
 131                      + str(io_db["file_record"].line_n))
 132                 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 133             else:
 134                 print("Reached end of record file.")
 135         else:
 136             commands_db[tokens[0]][2](*tokens[1:])
 137             if do_record:
 138                 io_db["record_chunk"] += command + "\n"
 139                 if time.time() > io_db["save_wait"] + 15:
 140                     atomic_write(io_db["path_record"], io_db["record_chunk"],
 141                                  do_append=True)
 142                     save_world()
 143                     io_db["record_chunk"] = ""
 144                     io_db["save_wait"] = time.time()
 145             io_db["worldstate_updateable"] = world_db["WORLD_ACTIVE"]
 146     elif 0 != len(tokens):
 147         print("Invalid command/argument, or bad number of tokens.")
 148
 149
 150 def atomic_write(path, text, do_append=False, delete=True):
 151     """Atomic write of text to file at path, appended if do_append is set."""
 152     path_tmp = path + io_db["tmp_suffix"]
 153     mode = "w"
 154     if do_append:
 155         mode = "a"
 156         if os.access(path, os.F_OK):
 157             shutil.copyfile(path, path_tmp)
 158     file = open(path_tmp, mode)
 159     strong_write(file, text)
 160     file.close()
 161     if delete and os.access(path, os.F_OK):
 162         os.remove(path)
 163     os.rename(path_tmp, path)
 164
 165
 166 def save_world():
 167     """Save all commands needed to reconstruct current world state."""
 168
 169     def quote(string):
 170         string = string.replace("\u005C", '\u005C\u005C')
 171         return '"' + string.replace('"', '\u005C"') + '"'
 172
 173     def mapsetter(key):
 174         def helper(id):
 175             string = ""
 176             if world_db["Things"][id][key]:
 177                 map = world_db["Things"][id][key]
 178                 length = world_db["MAP_LENGTH"]
 179                 for i in range(length):
 180                     line = map[i * length:(i * length) + length].decode()
 181                     string = string + key + " " + str(i) + " " + quote(line) \
 182                              + "\n"
 183             return string
 184         return helper
 185
 186     def memthing(id):
 187         string = ""
 188         for memthing in world_db["Things"][id]["T_MEMTHING"]:
 189             string = string + "T_MEMTHING " + str(memthing[0]) + " " + \
 190                      str(memthing[1]) + " " + str(memthing[2]) + "\n"
 191         return string
 192
 193     def helper(category, id_string, special_keys={}):
 194         string = ""
 195         for id in world_db[category]:
 196             string = string + id_string + " " + str(id) + "\n"
 197             for key in world_db[category][id]:
 198                 if not key in special_keys:
 199                     x = world_db[category][id][key]
 200                     argument = quote(x) if str == type(x) else str(x)
 201                     string = string + key + " " + argument + "\n"
 202                 elif special_keys[key]:
 203                     string = string + special_keys[key](id)
 204         return string
 205
 206     string = ""
 207     for key in world_db:
 208         if dict != type(world_db[key]) and key != "MAP" and \
 209            key != "WORLD_ACTIVE" and key != "SEED_MAP":
 210             string = string + key + " " + str(world_db[key]) + "\n"
 211     string = string + "SEED_MAP " + str(world_db["SEED_MAP"]) + "\n"
 212     string = string + helper("ThingActions", "TA_ID")
 213     string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
 214     for id in world_db["ThingTypes"]:
 215         string = string + "TT_ID " + str(id) + "\n" + "TT_CORPSE_ID " + \
 216                  str(world_db["ThingTypes"][id]["TT_CORPSE_ID"]) + "\n"
 217     string = string + helper("Things", "T_ID",
 218                              {"T_CARRIES": False, "carried": False,
 219                               "T_MEMMAP": mapsetter("T_MEMMAP"),
 220                               "T_MEMTHING": memthing, "fovmap": False,
 221                               "T_MEMDEPTHMAP": mapsetter("T_MEMDEPTHMAP")})
 222     for id in world_db["Things"]:
 223         if [] != world_db["Things"][id]["T_CARRIES"]:
 224             string = string + "T_ID " + str(id) + "\n"
 225             for carried_id in world_db["Things"][id]["T_CARRIES"]:
 226                 string = string + "T_CARRIES " + str(carried_id) + "\n"
 227     string = string + "SEED_RANDOMNESS " + str(rand.seed) + "\n" + \
 228              "WORLD_ACTIVE " + str(world_db["WORLD_ACTIVE"])
 229     atomic_write(io_db["path_save"], string)
 230
 231
 232 def obey_lines_in_file(path, name, do_record=False):
 233     """Call obey() on each line of path's file, use name in input prefix."""
 234     file = open(path, "r")
 235     line_n = 1
 236     for line in file.readlines():
 237         obey(line.rstrip(), name + "file line " + str(line_n),
 238              do_record=do_record)
 239         line_n = line_n + 1
 240     file.close()
 241
 242
 243 def parse_command_line_arguments():
 244     """Return settings values read from command line arguments."""
 245     parser = argparse.ArgumentParser()
 246     parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
 247                         action='store')
 248     parser.add_argument('-l', nargs="?", const="save", dest='savefile',
 249                         action="store")
 250     parser.add_argument('-v', dest='verbose', action='store_true')
 251     opts, unknown = parser.parse_known_args()
 252     return opts
 253
 254
 255 def server_test():
 256     """Ensure valid server out file belonging to current process.
 257
 258     This is done by comparing io_db["teststring"] to what's found at the start
 259     of the current file at io_db["path_out"]. On failure, set
 260     io_db["kicked_by_rival"] and raise SystemExit.
 261     """
 262     if not os.access(io_db["path_out"], os.F_OK):
 263         raise SystemExit("Server output file has disappeared.")
 264     file = open(io_db["path_out"], "r")
 265     test = file.readline().rstrip("\n")
 266     file.close()
 267     if test != io_db["teststring"]:
 268         io_db["kicked_by_rival"] = True
 269         msg = "Server test string in server output file does not match. This" \
 270               " indicates that the current server process has been " \
 271               "superseded by another one."
 272         raise SystemExit(msg)
 273
 274
 275 def read_command():
 276     """Return next newline-delimited command from server in file.
 277
 278     Keep building return string until a newline is encountered. Pause between
 279     unsuccessful reads, and after too much waiting, run server_test().
 280     """
 281     wait_on_fail = 0.03333
 282     max_wait = 5
 283     now = time.time()
 284     command = ""
 285     while True:
 286         add = io_db["file_in"].readline()
 287         if len(add) > 0:
 288             command = command + add
 289             if len(command) > 0 and "\n" == command[-1]:
 290                 command = command[:-1]
 291                 break
 292         else:
 293             time.sleep(wait_on_fail)
 294             if now + max_wait < time.time():
 295                 server_test()
 296                 now = time.time()
 297     return command
 298
 299
 300 def try_worldstate_update():
 301     """Write worldstate file if io_db["worldstate_updateable"] is set."""
 302     if io_db["worldstate_updateable"]:
 303
 304         def draw_visible_Things(map, run):
 305             for id in world_db["Things"]:
 306                 type = world_db["Things"][id]["T_TYPE"]
 307                 consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 308                 alive = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]
 309                 if (0 == run and not consumable and not alive) \
 310                    or (1 == run and consumable and not alive) \
 311                    or (2 == run and alive):
 312                     y = world_db["Things"][id]["T_POSY"]
 313                     x = world_db["Things"][id]["T_POSX"]
 314                     fovflag = world_db["Things"][0]["fovmap"][(y * length) + x]
 315                     if 'v' == chr(fovflag):
 316                         c = world_db["ThingTypes"][type]["TT_SYMBOL"]
 317                         map[(y * length) + x] = ord(c)
 318
 319         def write_map(string, map):
 320             for i in range(length):
 321                 line = map[i * length:(i * length) + length].decode()
 322                 string = string + line + "\n"
 323             return string
 324
 325         inventory = ""
 326         if [] == world_db["Things"][0]["T_CARRIES"]:
 327             inventory = "(none)\n"
 328         else:
 329             for id in world_db["Things"][0]["T_CARRIES"]:
 330                 type_id = world_db["Things"][id]["T_TYPE"]
 331                 name = world_db["ThingTypes"][type_id]["TT_NAME"]
 332                 inventory = inventory + name + "\n"
 333         # # 7DRL additions:  GOD_MOOD, GOD_FAVOR
 334         string = str(world_db["TURN"]) + "\n" + \
 335                  str(world_db["GOD_MOOD"]) + "\n" + \
 336                  str(world_db["GOD_FAVOR"]) + "\n" + \
 337                  str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
 338                  str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
 339                  inventory + "%\n" + \
 340                  str(world_db["Things"][0]["T_POSY"]) + "\n" + \
 341                  str(world_db["Things"][0]["T_POSX"]) + "\n" + \
 342                  str(world_db["MAP_LENGTH"]) + "\n"
 343         length = world_db["MAP_LENGTH"]
 344         fov = bytearray(b' ' * (length ** 2))
 345         for pos in range(length ** 2):
 346             if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
 347                 fov[pos] = world_db["MAP"][pos]
 348         for i in range(3):
 349             draw_visible_Things(fov, i)
 350         string = write_map(string, fov)
 351         mem = world_db["Things"][0]["T_MEMMAP"][:]
 352         for i in range(2):
 353             for mt in world_db["Things"][0]["T_MEMTHING"]:
 354                 consumable = world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]
 355                 if (i == 0 and not consumable) or (i == 1 and consumable):
 356                     c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
 357                     mem[(mt[1] * length) + mt[2]] = ord(c)
 358         string = write_map(string, mem)
 359         atomic_write(io_db["path_worldstate"], string, delete=False)
 360         strong_write(io_db["file_out"], "WORLD_UPDATED\n")
 361         io_db["worldstate_updateable"] = False
 362
 363
 364 def replay_game():
 365     """Replay game from record file.
 366
 367     Use opts.replay as breakpoint turn to which to replay automatically before
 368     switching to manual input by non-meta commands in server input file
 369     triggering further reads of record file. Ensure opts.replay is at least 1.
 370     Run try_worldstate_update() before each interactive obey()/read_command().
 371     """
 372     if opts.replay < 1:
 373         opts.replay = 1
 374     print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
 375           " (if so late a turn is to be found).")
 376     if not os.access(io_db["path_record"], os.F_OK):
 377         raise SystemExit("No record file found to replay.")
 378     io_db["file_record"] = open(io_db["path_record"], "r")
 379     io_db["file_record"].prefix = "record file line "
 380     io_db["file_record"].line_n = 1
 381     while world_db["TURN"] < opts.replay:
 382         line = io_db["file_record"].readline()
 383         if "" == line:
 384             break
 385         obey(line.rstrip(), io_db["file_record"].prefix
 386              + str(io_db["file_record"].line_n))
 387         io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 388     while True:
 389         try_worldstate_update()
 390         obey(read_command(), "in file", replay=True)
 391
 392
 393 def play_game():
 394     """Play game by server input file commands. Before, load save file found.
 395
 396     If no save file is found, a new world is generated from the commands in the
 397     world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
 398     command and all that follow via the server input file. Run
 399     try_worldstate_update() before each interactive obey()/read_command().
 400     """
 401     if os.access(io_db["path_save"], os.F_OK):
 402         obey_lines_in_file(io_db["path_save"], "save")
 403     else:
 404         if not os.access(io_db["path_worldconf"], os.F_OK):
 405             msg = "No world config file from which to start a new world."
 406             raise SystemExit(msg)
 407         obey_lines_in_file(io_db["path_worldconf"], "world config ",
 408                            do_record=True)
 409         obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
 410     while True:
 411         try_worldstate_update()
 412         obey(read_command(), "in file", do_record=True)
 413
 414
 415 def remake_map():
 416     """(Re-)make island map.
 417
 418     Let "~" represent water, "." land, "X" trees: Build island shape randomly,
 419     start with one land cell in the middle, then go into cycle of repeatedly
 420     selecting a random sea cell and transforming it into land if it is neighbor
 421     to land. The cycle ends when a land cell is due to be created at the map's
 422     border. Then put some trees on the map (TODO: more precise algorithm desc).
 423     """
 424     def is_neighbor(coordinates, type):
 425         y = coordinates[0]
 426         x = coordinates[1]
 427         length = world_db["MAP_LENGTH"]
 428         ind = y % 2
 429         diag_west = x + (ind > 0)
 430         diag_east = x + (ind < (length - 1))
 431         pos = (y * length) + x
 432         if (y > 0 and diag_east
 433             and type == chr(world_db["MAP"][pos - length + ind])) \
 434            or (x < (length - 1)
 435                and type == chr(world_db["MAP"][pos + 1])) \
 436            or (y < (length - 1) and diag_east
 437                and type == chr(world_db["MAP"][pos + length + ind])) \
 438            or (y > 0 and diag_west
 439                and type == chr(world_db["MAP"][pos - length - (not ind)])) \
 440            or (x > 0
 441                and type == chr(world_db["MAP"][pos - 1])) \
 442            or (y < (length - 1) and diag_west
 443                and type == chr(world_db["MAP"][pos + length - (not ind)])):
 444             return True
 445         return False
 446     store_seed = rand.seed
 447     rand.seed = world_db["SEED_MAP"]
 448     world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
 449     length = world_db["MAP_LENGTH"]
 450     add_half_width = (not (length % 2)) * int(length / 2)
 451     world_db["MAP"][int((length ** 2) / 2) + add_half_width] = ord(".")
 452     while (1):
 453         y = rand.next() % length
 454         x = rand.next() % length
 455         pos = (y * length) + x
 456         if "~" == chr(world_db["MAP"][pos]) and is_neighbor((y, x), "."):
 457             if y == 0 or y == (length - 1) or x == 0 or x == (length - 1):
 458                 break
 459             world_db["MAP"][pos] = ord(".")
 460     n_trees = int((length ** 2) / 16)
 461     i_trees = 0
 462     while (i_trees <= n_trees):
 463         single_allowed = rand.next() % 32
 464         y = rand.next() % length
 465         x = rand.next() % length
 466         pos = (y * length) + x
 467         if "." == chr(world_db["MAP"][pos]) \
 468           and ((not single_allowed) or is_neighbor((y, x), "X")):
 469             world_db["MAP"][pos] = ord("X")
 470             i_trees += 1
 471     rand.seed = store_seed
 472     # This all-too-precise replica of the original C code misses iter_limit().
 473
 474
 475 def update_map_memory(t, age_map=True):
 476     """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
 477     def age_some_memdepthmap_on_nonfov_cells():
 478         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 479         # ord_v = ord("v")
 480         # ord_0 = ord("0")
 481         # ord_9 = ord("9")
 482         # for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 483         #             if not ord_v == t["fovmap"][pos]
 484         #             if ord_0 <= t["T_MEMDEPTHMAP"][pos]
 485         #             if ord_9 > t["T_MEMDEPTHMAP"][pos]
 486         #             if not rand.next() % (2 **
 487         #                                   (t["T_MEMDEPTHMAP"][pos] - 48))]:
 488         #     t["T_MEMDEPTHMAP"][pos] += 1
 489         memdepthmap = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 490         fovmap = c_pointer_to_bytearray(t["fovmap"])
 491         libpr.age_some_memdepthmap_on_nonfov_cells(memdepthmap, fovmap)
 492     if not t["T_MEMMAP"]:
 493         t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 494     if not t["T_MEMDEPTHMAP"]:
 495         t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 496     ord_v = ord("v")
 497     ord_0 = ord("0")
 498     ord_space = ord(" ")
 499     for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 500                 if ord_v == t["fovmap"][pos]]:
 501         t["T_MEMDEPTHMAP"][pos] = ord_0
 502         if ord_space == t["T_MEMMAP"][pos]:
 503             t["T_MEMMAP"][pos] = world_db["MAP"][pos]
 504     if age_map:
 505         age_some_memdepthmap_on_nonfov_cells()
 506     for mt in [mt for mt in t["T_MEMTHING"]
 507                if ord_v == t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
 508                                        + mt[2]]]:
 509         t["T_MEMTHING"].remove(mt)
 510     for id in [id for id in world_db["Things"]
 511                if not world_db["Things"][id]["carried"]]:
 512         type = world_db["Things"][id]["T_TYPE"]
 513         if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
 514             y = world_db["Things"][id]["T_POSY"]
 515             x = world_db["Things"][id]["T_POSX"]
 516             if ord_v == t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]:
 517                 t["T_MEMTHING"].append((type, y, x))
 518
 519
 520 def set_world_inactive():
 521     """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
 522     server_test()
 523     if os.access(io_db["path_worldstate"], os.F_OK):
 524         os.remove(io_db["path_worldstate"])
 525     world_db["WORLD_ACTIVE"] = 0
 526
 527
 528 def integer_test(val_string, min, max=None):
 529     """Return val_string if possible integer >= min and <= max, else None."""
 530     try:
 531         val = int(val_string)
 532         if val < min or (max is not None and val > max):
 533             raise ValueError
 534         return val
 535     except ValueError:
 536         msg = "Ignoring: Please use integer >= " + str(min)
 537         if max is not None:
 538             msg += " and <= " + str(max)
 539         msg += "."
 540         print(msg)
 541         return None
 542
 543
 544 def setter(category, key, min, max=None):
 545     """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
 546     if category is None:
 547         def f(val_string):
 548             val = integer_test(val_string, min, max)
 549             if None != val:
 550                 world_db[key] = val
 551     else:
 552         if category == "Thing":
 553             id_store = command_tid
 554             decorator = test_Thing_id
 555         elif category == "ThingType":
 556             id_store = command_ttid
 557             decorator = test_ThingType_id
 558         elif category == "ThingAction":
 559             id_store = command_taid
 560             decorator = test_ThingAction_id
 561
 562         @decorator
 563         def f(val_string):
 564             val = integer_test(val_string, min, max)
 565             if None != val:
 566                 world_db[category + "s"][id_store.id][key] = val
 567     return f
 568
 569
 570 def build_fov_map(t):
 571     """Build Thing's FOV map."""
 572     t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
 573     fovmap = c_pointer_to_bytearray(t["fovmap"])
 574     map = c_pointer_to_bytearray(world_db["MAP"])
 575     if libpr.build_fov_map(t["T_POSY"], t["T_POSX"], fovmap, map):
 576         raise RuntimeError("Malloc error in build_fov_Map().")
 577
 578
 579 def decrement_lifepoints(t):
 580     """Decrement t's lifepoints by 1, and if to zero, corpse it.
 581
 582     If t is the player avatar, only blank its fovmap, so that the client may
 583     still display memory data. On non-player things, erase fovmap and memory.
 584     """
 585     # # 7DRL: also decrements God's mood; deaths heavily so
 586     # # 7DRL: return 1 if death, else 0
 587     t["T_LIFEPOINTS"] -= 1
 588     world_db["GOD_MOOD"] -= 1  # #
 589     if 0 == t["T_LIFEPOINTS"]:
 590         world_db["GOD_MOOD"] -= 9  # #
 591         t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
 592         if world_db["Things"][0] == t:
 593             t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 594             strong_write(io_db["file_out"], "LOG You die.\n")
 595         else:
 596             t["fovmap"] = False
 597             t["T_MEMMAP"] = False
 598             t["T_MEMDEPTHMAP"] = False
 599             t["T_MEMTHING"] = []
 600         return 1  # #
 601     return 0  # #
 602
 603
 604 def mv_yx_in_dir_legal(dir, y, x):
 605     """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
 606     dir_c = dir.encode("ascii")[0]
 607     test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
 608     if -1 == test:
 609         raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
 610     return (test, libpr.result_y(), libpr.result_x())
 611
 612
 613 def actor_wait(t):
 614     """Make t do nothing (but loudly, if player avatar)."""
 615     if t == world_db["Things"][0]:
 616         strong_write(io_db["file_out"], "LOG You wait.\n")
 617
 618
 619 def actor_move(t):
 620     """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
 621     # # 7DRL: Player wounding (worse: killing) others will lower God's favor.
 622     passable = False
 623     move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
 624                                      t["T_POSY"], t["T_POSX"])
 625     if 1 == move_result[0]:
 626         pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
 627         passable = "." == chr(world_db["MAP"][pos])
 628         hitted = [id for id in world_db["Things"]
 629                   if world_db["Things"][id] != t
 630                   if world_db["Things"][id]["T_LIFEPOINTS"]
 631                   if world_db["Things"][id]["T_POSY"] == move_result[1]
 632                   if world_db["Things"][id]["T_POSX"] == move_result[2]]
 633         if len(hitted):
 634             hit_id = hitted[0]
 635             if t == world_db["Things"][0]:
 636                 hitted_type = world_db["Things"][hit_id]["T_TYPE"]
 637                 hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
 638                 strong_write(io_db["file_out"], "LOG You wound " + hitted_name
 639                                                 + ".\n")
 640                 world_db["GOD_FAVOR"] -= 1  # #
 641             elif 0 == hit_id:
 642                 hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
 643                 strong_write(io_db["file_out"], "LOG " + hitter_name +
 644                                                 " wounds you.\n")
 645             test = decrement_lifepoints(world_db["Things"][hit_id])  # #
 646             if test and t == world_db["Things"][0]:  # #
 647                 world_db["GOD_FAVOR"] -= 10  # #
 648             return
 649     dir = [dir for dir in directions_db
 650            if directions_db[dir] == chr(t["T_ARGUMENT"])][0]
 651     if passable:
 652         t["T_POSY"] = move_result[1]
 653         t["T_POSX"] = move_result[2]
 654         for id in t["T_CARRIES"]:
 655             world_db["Things"][id]["T_POSY"] = move_result[1]
 656             world_db["Things"][id]["T_POSX"] = move_result[2]
 657         build_fov_map(t)
 658         if t == world_db["Things"][0]:
 659             strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
 660     elif t == world_db["Things"][0]:
 661         strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
 662
 663
 664 def actor_pick_up(t):
 665     """Make t pick up (topmost?) Thing from ground into inventory."""
 666     # Topmostness is actually not defined so far. Picks Thing with highest ID.
 667     used_slots = len(t["T_CARRIES"]) # #
 668     if used_slots < world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]: # #
 669         ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
 670                if not world_db["Things"][id]["carried"]
 671                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 672                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
 673         if len(ids):
 674             highest_id = 0
 675             for id in ids:
 676                 if id > highest_id:
 677                     highest_id = id
 678             world_db["Things"][highest_id]["carried"] = True
 679             t["T_CARRIES"].append(highest_id)
 680             if t == world_db["Things"][0]:
 681                 strong_write(io_db["file_out"], "LOG You pick up an object.\n")
 682         elif t == world_db["Things"][0]:
 683             err = "You try to pick up an object, but there is none."
 684             strong_write(io_db["file_out"], "LOG " + err + "\n")
 685     elif t == world_db["Things"][0]: # #
 686         strong_write(io_db["file_out"], "LOG Can't pick up object: " + # #
 687                                         "No storage room to carry more.\n") # #
 688
 689
 690 def actor_drop(t):
 691     """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
 692     # TODO: Handle case where T_ARGUMENT matches nothing.
 693     if len(t["T_CARRIES"]):
 694         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 695         t["T_CARRIES"].remove(id)
 696         world_db["Things"][id]["carried"] = False
 697         if t == world_db["Things"][0]:
 698             strong_write(io_db["file_out"], "LOG You drop an object.\n")
 699     elif t == world_db["Things"][0]:
 700         err = "You try to drop an object, but you own none."
 701         strong_write(io_db["file_out"], "LOG " + err + "\n")
 702
 703
 704 def actor_use(t):
 705     """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
 706     # TODO: Handle case where T_ARGUMENT matches nothing.
 707     if len(t["T_CARRIES"]):
 708         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 709         type = world_db["Things"][id]["T_TYPE"]
 710         if world_db["ThingTypes"][type]["TT_CONSUMABLE"]:
 711             t["T_CARRIES"].remove(id)
 712             del world_db["Things"][id]
 713             t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_CONSUMABLE"]
 714             if t == world_db["Things"][0]:
 715                 strong_write(io_db["file_out"],
 716                              "LOG You consume this object.\n")
 717         elif t == world_db["Things"][0]:
 718             strong_write(io_db["file_out"],
 719                          "LOG You try to use this object, but fail.\n")
 720     elif t == world_db["Things"][0]:
 721         strong_write(io_db["file_out"],
 722                      "LOG You try to use an object, but you own none.\n")
 723
 724
 725 def thingproliferation(t):
 726     """To chance of 1/TT_PROLIFERATE, create t offspring in neighbor cell.
 727
 728     Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be
 729     passable and not be inhabited by a Thing of the same type, or, if Thing is
 730     animate, any other animate Thing. If there are several map cell candidates,
 731     one is selected randomly.
 732     """
 733     # # 7DRL: success increments God's mood
 734     def test_cell(t, y, x):
 735         if "." == chr(world_db["MAP"][(y * world_db["MAP_LENGTH"]) + x]):
 736             for id in [id for id in world_db["Things"]
 737                        if y == world_db["Things"][id]["T_POSY"]
 738                        if x == world_db["Things"][id]["T_POSX"]
 739                        if (t["T_TYPE"] == world_db["Things"][id]["T_TYPE"])
 740                        or (t["T_LIFEPOINTS"] and
 741                            world_db["Things"][id]["T_LIFEPOINTS"])]:
 742                 return False
 743             return True
 744         return False
 745     prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
 746     if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
 747         candidates = []
 748         for dir in [directions_db[key] for key in directions_db]:
 749             mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
 750             if mv_result[0] and test_cell(t, mv_result[1], mv_result[2]):
 751                 candidates.append((mv_result[1], mv_result[2]))
 752         if len(candidates):
 753             i = rand.next() % len(candidates)
 754             id = id_setter(-1, "Things")
 755             newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
 756             world_db["Things"][id] = newT
 757             world_db["GOD_MOOD"] += 1  # #
 758
 759
 760 def try_healing(t):
 761     """Grow t's HP to a 1/32 chance if < HP max, satiation > 0, and waiting.
 762
 763     On success, decrease satiation score by 32.
 764     """
 765     # # 7DRL: Successful heals increment God's mood.
 766     if t["T_SATIATION"] > 0 \
 767        and t["T_LIFEPOINTS"] < \
 768            world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] \
 769        and 0 == (rand.next() % 31) \
 770        and t["T_COMMAND"] == [id for id in world_db["ThingActions"]
 771                               if world_db["ThingActions"][id]["TA_NAME"] ==
 772                                  "wait"][0]:
 773         t["T_LIFEPOINTS"] += 1
 774         world_db["GOD_MOOD"] += 1  # #
 775         t["T_SATIATION"] -= 32
 776         if t == world_db["Things"][0]:
 777             strong_write(io_db["file_out"], "LOG You heal.\n")
 778
 779
 780 def hunger(t):
 781     """Decrement t's satiation,dependent on it trigger lifepoint dec chance."""
 782     if t["T_SATIATION"] > -32768:
 783         t["T_SATIATION"] -= 1
 784     testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
 785     if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
 786         raise RuntimeError("A thing that should not hunger is hungering.")
 787     stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
 788     if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
 789         if t == world_db["Things"][0]:
 790             strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
 791         decrement_lifepoints(t)
 792
 793
 794 def get_dir_to_target(t, filter):
 795     """Try to set T_COMMAND/T_ARGUMENT for move to "filter"-determined target.
 796
 797     The path-wise nearest target is chosen, via the shortest available path.
 798     Target must not be t. On succcess, return positive value, else False.
 799     Filters:
 800     "a": Thing in FOV is below a certain distance, animate, but of ThingType
 801          that is not t's, and starts out weaker than t is; build path as
 802          avoiding things of t's ThingType
 803     "f": neighbor cell (not inhabited by any animate Thing) further away from
 804          animate Thing not further than x steps away and in FOV and of a
 805          ThingType that is not t's, and starts out stronger or as strong as t
 806          is currently; or (cornered), if no such flight cell, but Thing of
 807          above criteria is too near,1 a cell closer to it, or, if less near,
 808          just wait
 809     "c": Thing in memorized map is consumable
 810     "s": memory map cell with greatest-reachable degree of unexploredness
 811     """
 812
 813     def zero_score_map_where_char_on_memdepthmap(c):
 814         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 815         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 816         #           if t["T_MEMDEPTHMAP"][i] == mem_depth_c[0]]:
 817         #     set_map_score(i, 0)
 818         map = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 819         if libpr.zero_score_map_where_char_on_memdepthmap(c, map):
 820             raise RuntimeError("No score map allocated for "
 821                                "zero_score_map_where_char_on_memdepthmap().")
 822
 823     def set_map_score(pos, score):
 824         test = libpr.set_map_score(pos, score)
 825         if test:
 826             raise RuntimeError("No score map allocated for set_map_score().")
 827
 828     def get_map_score(pos):
 829         result = libpr.get_map_score(pos)
 830         if result < 0:
 831             raise RuntimeError("No score map allocated for get_map_score().")
 832         return result
 833
 834     def seeing_thing():
 835         if t["fovmap"] and ("a" == filter or "f" == filter):
 836             for id in world_db["Things"]:
 837                 Thing = world_db["Things"][id]
 838                 if Thing != t and Thing["T_LIFEPOINTS"] and \
 839                    t["T_TYPE"] != Thing["T_TYPE"] and \
 840                    'v' == chr(t["fovmap"][(Thing["T_POSY"]
 841                                           * world_db["MAP_LENGTH"])
 842                                           + Thing["T_POSX"]]):
 843                     ThingType = world_db["ThingTypes"][Thing["T_TYPE"]]
 844                     if ("f" == filter and ThingType["TT_LIFEPOINTS"] >=
 845                                           t["T_LIFEPOINTS"]) \
 846                        or ("a" == filter and ThingType["TT_LIFEPOINTS"] <
 847                                              t["T_LIFEPOINTS"]):
 848                         return True
 849         elif t["T_MEMMAP"] and "c" == filter:
 850             for mt in t["T_MEMTHING"]:
 851                 if ' ' != chr(t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
 852                                          + mt[2]]) \
 853                    and world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]:
 854                     return True
 855         return False
 856
 857     def set_cells_passable_on_memmap_to_65534_on_scoremap():
 858         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 859         # ord_dot = ord(".")
 860         # memmap = t["T_MEMMAP"]
 861         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 862         #            if ord_dot == memmap[i]]:
 863         #     set_map_score(i, 65534) # i.e. 65535-1
 864         map = c_pointer_to_bytearray(t["T_MEMMAP"])
 865         if libpr.set_cells_passable_on_memmap_to_65534_on_scoremap(map):
 866             raise RuntimeError("No score map allocated for "
 867                         "set_cells_passable_on_memmap_to_65534_on_scoremap().")
 868
 869     def init_score_map():
 870         test = libpr.init_score_map()
 871         if test:
 872             raise RuntimeError("Malloc error in init_score_map().")
 873         ord_v = ord("v")
 874         ord_blank = ord(" ")
 875         set_cells_passable_on_memmap_to_65534_on_scoremap()
 876         if "a" == filter:
 877             for id in world_db["Things"]:
 878                 Thing = world_db["Things"][id]
 879                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 880                       + Thing["T_POSX"]
 881                 if t != Thing and Thing["T_LIFEPOINTS"] and \
 882                    t["T_TYPE"] != Thing["T_TYPE"] and \
 883                    ord_v == t["fovmap"][pos] and \
 884                    t["T_LIFEPOINTS"] > \
 885                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 886                     set_map_score(pos, 0)
 887                 elif t["T_TYPE"] == Thing["T_TYPE"]:
 888                     set_map_score(pos, 65535)
 889         elif "f" == filter:
 890             for id in [id for id in world_db["Things"]
 891                        if world_db["Things"][id]["T_LIFEPOINTS"]]:
 892                 Thing = world_db["Things"][id]
 893                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 894                       + Thing["T_POSX"]
 895                 if t["T_TYPE"] != Thing["T_TYPE"] and \
 896                    ord_v == t["fovmap"][pos] and \
 897                    t["T_LIFEPOINTS"] <= \
 898                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 899                     set_map_score(pos, 0)
 900         elif "c" == filter:
 901             for mt in [mt for mt in t["T_MEMTHING"]
 902                        if ord_blank != t["T_MEMMAP"][mt[1]
 903                                                     * world_db["MAP_LENGTH"]
 904                                                     + mt[2]]
 905                        if world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]]:
 906                 set_map_score(mt[1] * world_db["MAP_LENGTH"] + mt[2], 0)
 907         elif "s" == filter:
 908             zero_score_map_where_char_on_memdepthmap(mem_depth_c[0])
 909
 910     def rand_target_dir(neighbors, cmp, dirs):
 911         candidates = []
 912         n_candidates = 0
 913         for i in range(len(dirs)):
 914             if cmp == neighbors[i]:
 915                 candidates.append(dirs[i])
 916                 n_candidates += 1
 917         return candidates[rand.next() % n_candidates] if n_candidates else 0
 918
 919     def get_neighbor_scores(dirs, eye_pos):
 920         scores = []
 921         if libpr.ready_neighbor_scores(eye_pos):
 922             raise RuntimeError("No score map allocated for " +
 923                                "ready_neighbor_scores.()")
 924         for i in range(len(dirs)):
 925             scores.append(libpr.get_neighbor_score(i))
 926         return scores
 927
 928     def get_dir_from_neighbors():
 929         dir_to_target = False
 930         dirs = "edcxsw"
 931         eye_pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
 932         neighbors = get_neighbor_scores(dirs, eye_pos)
 933         if "f" == filter:
 934             inhabited = [world_db["Things"][id]["T_POSY"]
 935                          * world_db["MAP_LENGTH"]
 936                          + world_db["Things"][id]["T_POSX"]
 937                          for id in world_db["Things"]
 938                          if world_db["Things"][id]["T_LIFEPOINTS"]]
 939             for i in range(len(dirs)):
 940                 mv_yx_in_dir_legal(dirs[i], t["T_POSY"], t["T_POSX"])
 941                 pos_cmp = libpr.result_y() * world_db["MAP_LENGTH"] \
 942                           + libpr.result_x()
 943                 for pos in [pos for pos in inhabited if pos == pos_cmp]:
 944                     neighbors[i] = 65535
 945                     break
 946         minmax_start = 0 if "f" == filter else 65535 - 1
 947         minmax_neighbor = minmax_start
 948         for i in range(len(dirs)):
 949             if ("f" == filter and get_map_score(eye_pos) < neighbors[i] and
 950                 minmax_neighbor < neighbors[i] and 65535 != neighbors[i]) \
 951                or ("f" != filter and minmax_neighbor > neighbors[i]):
 952                 minmax_neighbor = neighbors[i]
 953         if minmax_neighbor != minmax_start:
 954             dir_to_target = rand_target_dir(neighbors, minmax_neighbor, dirs)
 955         if "f" == filter:
 956             if not dir_to_target:
 957                 if 1 == get_map_score(eye_pos):
 958                     dir_to_target = rand_target_dir(neighbors, 0, dirs)
 959                 elif 3 >= get_map_score(eye_pos):
 960                     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 961                                       if
 962                                       world_db["ThingActions"][id]["TA_NAME"]
 963                                          == "wait"][0]
 964                     return 1
 965             elif dir_to_target and 3 < get_map_score(eye_pos):
 966                 dir_to_target = 0
 967         elif "a" == filter and 10 <= get_map_score(eye_pos):
 968             dir_to_target = 0
 969         return dir_to_target
 970
 971     dir_to_target = False
 972     mem_depth_c = b' '
 973     run_i = 9 + 1 if "s" == filter else 1
 974     while run_i and not dir_to_target and ("s" == filter or seeing_thing()):
 975         run_i -= 1
 976         init_score_map()
 977         mem_depth_c = b'9' if b' ' == mem_depth_c \
 978                            else bytes([mem_depth_c[0] - 1])
 979         if libpr.dijkstra_map():
 980             raise RuntimeError("No score map allocated for dijkstra_map().")
 981         dir_to_target = get_dir_from_neighbors()
 982         libpr.free_score_map()
 983         if dir_to_target and str == type(dir_to_target):
 984             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 985                               if world_db["ThingActions"][id]["TA_NAME"]
 986                                  == "move"][0]
 987             t["T_ARGUMENT"] = ord(dir_to_target)
 988     return dir_to_target
 989
 990
 991 def standing_on_consumable(t):
 992     """Return True/False whether t is standing on a consumable."""
 993     for id in [id for id in world_db["Things"] if world_db["Things"][id] != t
 994                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 995                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]
 996                if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
 997                           ["TT_CONSUMABLE"]]:
 998         return True
 999     return False
1000
1001
1002 def get_inventory_slot_to_consume(t):
1003     """Return slot Id of strongest consumable in t's inventory, else -1."""
1004     cmp_consumability = 0
1005     selection = -1
1006     i = 0
1007     for id in t["T_CARRIES"]:
1008         type = world_db["Things"][id]["T_TYPE"]
1009         if world_db["ThingTypes"][type]["TT_CONSUMABLE"] > cmp_consumability:
1010             cmp_consumability = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
1011             selection = i
1012         i += 1
1013     return selection
1014
1015
1016 def ai(t):
1017     """Determine next command/argment for actor t via AI algorithms.
1018
1019     AI will look for, and move towards, enemies (animate Things not of their
1020     own ThingType); if they see none, they will consume consumables in their
1021     inventory; if there are none, they will pick up what they stand on if they
1022     stand on consumables; if they stand on none, they will move towards the
1023     next consumable they see or remember on the map; if they see or remember
1024     none, they will explore parts of the map unseen since ever or for at least
1025     one turn; if there is nothing to explore, they will simply wait.
1026     """
1027     # # 7DRL add: Don't pick up or search things when inventory is full.
1028     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1029                       if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
1030     if not get_dir_to_target(t, "f"):
1031         sel = get_inventory_slot_to_consume(t)
1032         if -1 != sel:
1033             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1034                               if world_db["ThingActions"][id]["TA_NAME"]
1035                                  == "use"][0]
1036             t["T_ARGUMENT"] = sel
1037         elif standing_on_consumable(t) \
1038              and (len(t["T_CARRIES"]) < # #
1039                  world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]): # #
1040             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1041                               if world_db["ThingActions"][id]["TA_NAME"]
1042                                  == "pick_up"][0]
1043         elif (not
1044               (len(t["T_CARRIES"]) < # #
1045                 world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"] # #
1046                and get_dir_to_target(t, "c"))) and \
1047              (not get_dir_to_target(t, "a")):
1048             get_dir_to_target(t, "s")
1049
1050
1051 def turn_over():
1052     """Run game world and its inhabitants until new player input expected."""
1053     id = 0
1054     whilebreaker = False
1055     while world_db["Things"][0]["T_LIFEPOINTS"]:
1056         for id in [id for id in world_db["Things"]]:  # Only what's from start!
1057             if not id in world_db["Things"] or \
1058                world_db["Things"][id]["carried"]:   # May have been consumed or
1059                 continue                            # picked up during turn …
1060             Thing = world_db["Things"][id]
1061             if Thing["T_LIFEPOINTS"]:
1062                 if not Thing["T_COMMAND"]:
1063                     update_map_memory(Thing)
1064                     if 0 == id:
1065                         whilebreaker = True
1066                         break
1067                     ai(Thing)
1068                 try_healing(Thing)
1069                 Thing["T_PROGRESS"] += 1
1070                 taid = [a for a in world_db["ThingActions"]
1071                           if a == Thing["T_COMMAND"]][0]
1072                 ThingAction = world_db["ThingActions"][taid]
1073                 if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
1074                     eval("actor_" + ThingAction["TA_NAME"])(Thing)
1075                     Thing["T_COMMAND"] = 0
1076                     Thing["T_PROGRESS"] = 0
1077                 hunger(Thing)
1078             thingproliferation(Thing)
1079         if whilebreaker:
1080             break
1081         world_db["TURN"] += 1
1082
1083
1084 def new_Thing(type, pos=(0, 0)):
1085     """Return Thing of type T_TYPE, with fovmap if alive and world active."""
1086     thing = {
1087         "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
1088         "T_ARGUMENT": 0,
1089         "T_PROGRESS": 0,
1090         "T_SATIATION": 0,
1091         "T_COMMAND": 0,
1092         "T_TYPE": type,
1093         "T_POSY": pos[0],
1094         "T_POSX": pos[1],
1095         "T_CARRIES": [],
1096         "carried": False,
1097         "T_MEMTHING": [],
1098         "T_MEMMAP": False,
1099         "T_MEMDEPTHMAP": False,
1100         "fovmap": False
1101     }
1102     if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
1103         build_fov_map(thing)
1104     return thing
1105
1106
1107 def id_setter(id, category, id_store=False, start_at_1=False):
1108     """Set ID of object of category to manipulate ID unused? Create new one.
1109
1110     The ID is stored as id_store.id (if id_store is set). If the integer of the
1111     input is valid (if start_at_1, >= 0, else >= -1), but <0 or (if start_at_1)
1112     <1, calculate new ID: lowest unused ID >=0 or (if start_at_1) >= 1. None is
1113     always returned when no new object is created, otherwise the new object's
1114     ID.
1115     """
1116     min = 0 if start_at_1 else -1
1117     if str == type(id):
1118         id = integer_test(id, min)
1119     if None != id:
1120         if id in world_db[category]:
1121             if id_store:
1122                 id_store.id = id
1123             return None
1124         else:
1125             if (start_at_1 and 0 == id) \
1126                or ((not start_at_1) and (id < 0)):
1127                 id = 0 if start_at_1 else -1
1128                 while 1:
1129                     id = id + 1
1130                     if id not in world_db[category]:
1131                         break
1132             if id_store:
1133                 id_store.id = id
1134     return id
1135
1136
1137 def command_ping():
1138     """Send PONG line to server output file."""
1139     strong_write(io_db["file_out"], "PONG\n")
1140
1141
1142 def command_quit():
1143     """Abort server process."""
1144     save_world()
1145     atomic_write(io_db["path_record"], io_db["record_chunk"], do_append=True)
1146     raise SystemExit("received QUIT command")
1147
1148
1149 def command_thingshere(str_y, str_x):
1150     """Write to out file list of Things known to player at coordinate y, x."""
1151     if world_db["WORLD_ACTIVE"]:
1152         y = integer_test(str_y, 0, 255)
1153         x = integer_test(str_x, 0, 255)
1154         length = world_db["MAP_LENGTH"]
1155         if None != y and None != x and y < length and x < length:
1156             pos = (y * world_db["MAP_LENGTH"]) + x
1157             strong_write(io_db["file_out"], "THINGS_HERE START\n")
1158             if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
1159                 for id in world_db["Things"]:
1160                     if y == world_db["Things"][id]["T_POSY"] \
1161                        and x == world_db["Things"][id]["T_POSX"] \
1162                        and not world_db["Things"][id]["carried"]:
1163                         type = world_db["Things"][id]["T_TYPE"]
1164                         name = world_db["ThingTypes"][type]["TT_NAME"]
1165                         strong_write(io_db["file_out"], name + "\n")
1166             else:
1167                 for mt in world_db["Things"][0]["T_MEMTHING"]:
1168                     if y == mt[1] and x == mt[2]:
1169                         name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
1170                         strong_write(io_db["file_out"], name + "\n")
1171             strong_write(io_db["file_out"], "THINGS_HERE END\n")
1172         else:
1173             print("Ignoring: Invalid map coordinates.")
1174     else:
1175         print("Ignoring: Command only works on existing worlds.")
1176
1177
1178 def play_commander(action, args=False):
1179     """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
1180
1181     T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
1182     """
1183
1184     def set_command():
1185         id = [x for x in world_db["ThingActions"]
1186                 if world_db["ThingActions"][x]["TA_NAME"] == action][0]
1187         world_db["Things"][0]["T_COMMAND"] = id
1188         turn_over()
1189
1190     def set_command_and_argument_int(str_arg):
1191         val = integer_test(str_arg, 0, 255)
1192         if None != val:
1193             world_db["Things"][0]["T_ARGUMENT"] = val
1194             set_command()
1195
1196     def set_command_and_argument_movestring(str_arg):
1197         if str_arg in directions_db:
1198             world_db["Things"][0]["T_ARGUMENT"] = ord(directions_db[str_arg])
1199             set_command()
1200         else:
1201             print("Ignoring: Argument must be valid direction string.")
1202
1203     if action == "move":
1204         return set_command_and_argument_movestring
1205     elif args:
1206         return set_command_and_argument_int
1207     else:
1208         return set_command
1209
1210
1211 def command_seedrandomness(seed_string):
1212     """Set rand seed to int(seed_string)."""
1213     val = integer_test(seed_string, 0, 4294967295)
1214     if None != val:
1215         rand.seed = val
1216
1217
1218 def command_seedmap(seed_string):
1219     """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
1220     setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
1221     remake_map()
1222
1223
1224 def command_makeworld(seed_string):
1225     """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
1226
1227     Seed rand with seed, fill it into world_db["SEED_MAP"]. Do more only with a
1228     "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType of
1229     TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
1230     and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
1231     according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
1232     of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
1233     other. Init player's memory map. Write "NEW_WORLD" line to out file.
1234     """
1235
1236     def free_pos():
1237         i = 0
1238         while 1:
1239             err = "Space to put thing on too hard to find. Map too small?"
1240             while 1:
1241                 y = rand.next() % world_db["MAP_LENGTH"]
1242                 x = rand.next() % world_db["MAP_LENGTH"]
1243                 if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
1244                     break
1245                 i += 1
1246                 if i == 65535:
1247                     raise SystemExit(err)
1248             # Replica of C code, wrongly ignores animatedness of new Thing.
1249             pos_clear = (0 == len([id for id in world_db["Things"]
1250                                    if world_db["Things"][id]["T_LIFEPOINTS"]
1251                                    if world_db["Things"][id]["T_POSY"] == y
1252                                    if world_db["Things"][id]["T_POSX"] == x]))
1253             if pos_clear:
1254                 break
1255         return (y, x)
1256
1257     val = integer_test(seed_string, 0, 4294967295)
1258     if None == val:
1259         return
1260     rand.seed = val
1261     world_db["SEED_MAP"] = val
1262     player_will_be_generated = False
1263     playertype = world_db["PLAYER_TYPE"]
1264     for ThingType in world_db["ThingTypes"]:
1265         if playertype == ThingType:
1266             if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
1267                 player_will_be_generated = True
1268             break
1269     if not player_will_be_generated:
1270         print("Ignoring beyond SEED_MAP: " +
1271               "No player type with start number >0 defined.")
1272         return
1273     wait_action = False
1274     for ThingAction in world_db["ThingActions"]:
1275         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1276             wait_action = True
1277     if not wait_action:
1278         print("Ignoring beyond SEED_MAP: " +
1279               "No thing action with name 'wait' defined.")
1280         return
1281     world_db["Things"] = {}
1282     remake_map()
1283     world_db["WORLD_ACTIVE"] = 1
1284     world_db["TURN"] = 1
1285     for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
1286         id = id_setter(-1, "Things")
1287         world_db["Things"][id] = new_Thing(playertype, free_pos())
1288     update_map_memory(world_db["Things"][0])
1289     for type in world_db["ThingTypes"]:
1290         for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
1291             if type != playertype:
1292                 id = id_setter(-1, "Things")
1293                 world_db["Things"][id] = new_Thing(type, free_pos())
1294     strong_write(io_db["file_out"], "NEW_WORLD\n")
1295
1296
1297 def command_maplength(maplength_string):
1298     """Redefine map length. Invalidate map, therefore lose all things on it."""
1299     val = integer_test(maplength_string, 1, 256)
1300     if None != val:
1301         world_db["MAP_LENGTH"] = val
1302         set_world_inactive()
1303         world_db["Things"] = {}
1304         libpr.set_maplength(val)
1305
1306
1307 def command_worldactive(worldactive_string):
1308     """Toggle world_db["WORLD_ACTIVE"] if possible.
1309
1310     An active world can always be set inactive. An inactive world can only be
1311     set active with a "wait" ThingAction, and a player Thing (of ID 0). On
1312     activation, rebuild all Things' FOVs, and the player's map memory.
1313     """
1314     # In original version, map existence was also tested (unnecessarily?).
1315     val = integer_test(worldactive_string, 0, 1)
1316     if val:
1317         if 0 != world_db["WORLD_ACTIVE"]:
1318             if 0 == val:
1319                 set_world_inactive()
1320             else:
1321                 print("World already active.")
1322         elif 0 == world_db["WORLD_ACTIVE"]:
1323             wait_exists = False
1324             for ThingAction in world_db["ThingActions"]:
1325                 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1326                     wait_exists = True
1327                     break
1328             player_exists = False
1329             for Thing in world_db["Things"]:
1330                 if 0 == Thing:
1331                     player_exists = True
1332                     break
1333             if wait_exists and player_exists:
1334                 for id in world_db["Things"]:
1335                     if world_db["Things"][id]["T_LIFEPOINTS"]:
1336                         build_fov_map(world_db["Things"][id])
1337                         if 0 == id:
1338                             update_map_memory(world_db["Things"][id], False)
1339                 world_db["WORLD_ACTIVE"] = 1
1340
1341
1342 def test_for_id_maker(object, category):
1343     """Return decorator testing for object having "id" attribute."""
1344     def decorator(f):
1345         def helper(*args):
1346             if hasattr(object, "id"):
1347                 f(*args)
1348             else:
1349                 print("Ignoring: No " + category +
1350                       " defined to manipulate yet.")
1351         return helper
1352     return decorator
1353
1354
1355 def command_tid(id_string):
1356     """Set ID of Thing to manipulate. ID unused? Create new one.
1357
1358     Default new Thing's type to the first available ThingType, others: zero.
1359     """
1360     id = id_setter(id_string, "Things", command_tid)
1361     if None != id:
1362         if world_db["ThingTypes"] == {}:
1363             print("Ignoring: No ThingType to settle new Thing in.")
1364             return
1365         type = list(world_db["ThingTypes"].keys())[0]
1366         world_db["Things"][id] = new_Thing(type)
1367
1368
1369 test_Thing_id = test_for_id_maker(command_tid, "Thing")
1370
1371
1372 @test_Thing_id
1373 def command_tcommand(str_int):
1374     """Set T_COMMAND of selected Thing."""
1375     val = integer_test(str_int, 0)
1376     if None != val:
1377         if 0 == val or val in world_db["ThingActions"]:
1378             world_db["Things"][command_tid.id]["T_COMMAND"] = val
1379         else:
1380             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
1381
1382
1383 @test_Thing_id
1384 def command_ttype(str_int):
1385     """Set T_TYPE of selected Thing."""
1386     val = integer_test(str_int, 0)
1387     if None != val:
1388         if val in world_db["ThingTypes"]:
1389             world_db["Things"][command_tid.id]["T_TYPE"] = val
1390         else:
1391             print("Ignoring: ThingType ID belongs to no known ThingType.")
1392
1393
1394 @test_Thing_id
1395 def command_tcarries(str_int):
1396     """Append int(str_int) to T_CARRIES of selected Thing.
1397
1398     The ID int(str_int) must not be of the selected Thing, and must belong to a
1399     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
1400     """
1401     val = integer_test(str_int, 0)
1402     if None != val:
1403         if val == command_tid.id:
1404             print("Ignoring: Thing cannot carry itself.")
1405         elif val in world_db["Things"] \
1406              and not world_db["Things"][val]["carried"]:
1407             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
1408             world_db["Things"][val]["carried"] = True
1409         else:
1410             print("Ignoring: Thing not available for carrying.")
1411     # Note that the whole carrying structure is different from the C version:
1412     # Carried-ness is marked by a "carried" flag, not by Things containing
1413     # Things internally.
1414
1415
1416 @test_Thing_id
1417 def command_tmemthing(str_t, str_y, str_x):
1418     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
1419
1420     The type must fit to an existing ThingType, and the position into the map.
1421     """
1422     type = integer_test(str_t, 0)
1423     posy = integer_test(str_y, 0, 255)
1424     posx = integer_test(str_x, 0, 255)
1425     if None != type and None != posy and None != posx:
1426         if type not in world_db["ThingTypes"] \
1427            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
1428             print("Ignoring: Illegal value for thing type or position.")
1429         else:
1430             memthing = (type, posy, posx)
1431             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
1432
1433
1434 def setter_map(maptype):
1435     """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
1436
1437     If Thing has no map of maptype yet, initialize it with ' ' bytes first.
1438     """
1439     @test_Thing_id
1440     def helper(str_int, mapline):
1441         val = integer_test(str_int, 0, 255)
1442         if None != val:
1443             if val >= world_db["MAP_LENGTH"]:
1444                 print("Illegal value for map line number.")
1445             elif len(mapline) != world_db["MAP_LENGTH"]:
1446                 print("Map line length is unequal map width.")
1447             else:
1448                 length = world_db["MAP_LENGTH"]
1449                 map = None
1450                 if not world_db["Things"][command_tid.id][maptype]:
1451                     map = bytearray(b' ' * (length ** 2))
1452                 else:
1453                     map = world_db["Things"][command_tid.id][maptype]
1454                 map[val * length:(val * length) + length] = mapline.encode()
1455                 world_db["Things"][command_tid.id][maptype] = map
1456     return helper
1457
1458
1459 def setter_tpos(axis):
1460     """Generate setter for T_POSX or  T_POSY of selected Thing.
1461
1462     If world is active, rebuilds animate things' fovmap, player's memory map.
1463     """
1464     @test_Thing_id
1465     def helper(str_int):
1466         val = integer_test(str_int, 0, 255)
1467         if None != val:
1468             if val < world_db["MAP_LENGTH"]:
1469                 world_db["Things"][command_tid.id]["T_POS" + axis] = val
1470                 if world_db["WORLD_ACTIVE"] \
1471                    and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
1472                     build_fov_map(world_db["Things"][command_tid.id])
1473                     if 0 == command_tid.id:
1474                         update_map_memory(world_db["Things"][command_tid.id])
1475             else:
1476                 print("Ignoring: Position is outside of map.")
1477     return helper
1478
1479
1480 def command_ttid(id_string):
1481     """Set ID of ThingType to manipulate. ID unused? Create new one.
1482
1483     Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
1484     """
1485     id = id_setter(id_string, "ThingTypes", command_ttid)
1486     if None != id:
1487         world_db["ThingTypes"][id] = {
1488             "TT_NAME": "(none)",
1489             "TT_CONSUMABLE": 0,
1490             "TT_LIFEPOINTS": 0,
1491             "TT_PROLIFERATE": 0,
1492             "TT_START_NUMBER": 0,
1493             "TT_STORAGE": 0, # #
1494             "TT_SYMBOL": "?",
1495             "TT_CORPSE_ID": id
1496         }
1497
1498
1499 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
1500
1501
1502 @test_ThingType_id
1503 def command_ttname(name):
1504     """Set TT_NAME of selected ThingType."""
1505     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
1506
1507
1508 @test_ThingType_id
1509 def command_ttsymbol(char):
1510     """Set TT_SYMBOL of selected ThingType. """
1511     if 1 == len(char):
1512         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
1513     else:
1514         print("Ignoring: Argument must be single character.")
1515
1516
1517 @test_ThingType_id
1518 def command_ttcorpseid(str_int):
1519     """Set TT_CORPSE_ID of selected ThingType."""
1520     val = integer_test(str_int, 0)
1521     if None != val:
1522         if val in world_db["ThingTypes"]:
1523             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
1524         else:
1525             print("Ignoring: Corpse ID belongs to no known ThignType.")
1526
1527
1528 def command_taid(id_string):
1529     """Set ID of ThingAction to manipulate. ID unused? Create new one.
1530
1531     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
1532     """
1533     id = id_setter(id_string, "ThingActions", command_taid, True)
1534     if None != id:
1535         world_db["ThingActions"][id] = {
1536             "TA_EFFORT": 1,
1537             "TA_NAME": "wait"
1538         }
1539
1540
1541 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
1542
1543
1544 @test_ThingAction_id
1545 def command_taname(name):
1546     """Set TA_NAME of selected ThingAction.
1547
1548     The name must match a valid thing action function. If after the name
1549     setting no ThingAction with name "wait" remains, call set_world_inactive().
1550     """
1551     if name == "wait" or name == "move" or name == "use" or name == "drop" \
1552        or name == "pick_up":
1553         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
1554         if 1 == world_db["WORLD_ACTIVE"]:
1555             wait_defined = False
1556             for id in world_db["ThingActions"]:
1557                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
1558                     wait_defined = True
1559                     break
1560             if not wait_defined:
1561                 set_world_inactive()
1562     else:
1563         print("Ignoring: Invalid action name.")
1564     # In contrast to the original,naming won't map a function to a ThingAction.
1565
1566
1567 def command_ai():
1568     """Call ai() on player Thing, then turn_over()."""
1569     ai(world_db["Things"][0])
1570     turn_over()
1571
1572
1573 """Commands database.
1574
1575 Map command start tokens to ([0]) number of expected command arguments, ([1])
1576 the command's meta-ness (i.e. is it to be written to the record file, is it to
1577 be ignored in replay mode if read from server input file), and ([2]) a function
1578 to be called on it.
1579 """
1580 commands_db = {
1581     "QUIT": (0, True, command_quit),
1582     "PING": (0, True, command_ping),
1583     "THINGS_HERE": (2, True, command_thingshere),
1584     "MAKE_WORLD": (1, False, command_makeworld),
1585     "SEED_MAP": (1, False, command_seedmap),
1586     "SEED_RANDOMNESS": (1, False, command_seedrandomness),
1587     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1588     "GOD_MOOD": (1, False, setter(None, "GOD_MOOD", -32768, 32767)),  # #
1589     "GOD_FAVOR": (1, False, setter(None, "GOD_FAVOR", -32768, 32767)),  # #
1590     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0)),
1591     "MAP_LENGTH": (1, False, command_maplength),
1592     "WORLD_ACTIVE": (1, False, command_worldactive),
1593     "TA_ID": (1, False, command_taid),
1594     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1595     "TA_NAME": (1, False, command_taname),
1596     "TT_ID": (1, False, command_ttid),
1597     "TT_NAME": (1, False, command_ttname),
1598     "TT_SYMBOL": (1, False, command_ttsymbol),
1599     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1600     "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1601                                        0, 65535)),
1602     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1603                                          0, 255)),
1604     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1605                                         0, 255)),
1606     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1607     "TT_STORAGE": (1, False, setter("ThingType", "TT_STORAGE", 0, 255)), # #
1608     "T_ID": (1, False, command_tid),
1609     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1610     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1611     "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1612     "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1613     "T_COMMAND": (1, False, command_tcommand),
1614     "T_TYPE": (1, False, command_ttype),
1615     "T_CARRIES": (1, False, command_tcarries),
1616     "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1617     "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1618     "T_MEMTHING": (3, False, command_tmemthing),
1619     "T_POSY": (1, False, setter_tpos("Y")),
1620     "T_POSX": (1, False, setter_tpos("X")),
1621     "wait": (0, False, play_commander("wait")),
1622     "move": (1, False, play_commander("move")),
1623     "pick_up": (0, False, play_commander("pick_up")),
1624     "drop": (1, False, play_commander("drop", True)),
1625     "use": (1, False, play_commander("use", True)),
1626     "ai": (0, False, command_ai)
1627 }
1628
1629
1630 """World state database. With sane default values. (Randomness is in rand.)"""
1631 world_db = {
1632     "TURN": 0,
1633     "MAP_LENGTH": 64,
1634     "SEED_MAP": 0,
1635     "PLAYER_TYPE": 0,
1636     "WORLD_ACTIVE": 0,
1637     "GOD_MOOD": 0,  # #
1638     "GOD_FAVOR": 0,  # #
1639     "ThingActions": {},
1640     "ThingTypes": {},
1641     "Things": {}
1642 }
1643
1644 """Mapping of direction names to internal direction chars."""
1645 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
1646                  "west": "s", "north-west": "w", "north-east": "e"}
1647
1648 """File IO database."""
1649 io_db = {
1650     "path_save": "save",
1651     "path_record": "record_save",
1652     "path_worldconf": "confserver/world",
1653     "path_server": "server/",
1654     "path_in": "server/in",
1655     "path_out": "server/out",
1656     "path_worldstate": "server/worldstate",
1657     "tmp_suffix": "_tmp",
1658     "kicked_by_rival": False,
1659     "worldstate_updateable": False
1660 }
1661
1662
1663 try:
1664     libpr = prep_library()
1665     rand = RandomnessIO()
1666     opts = parse_command_line_arguments()
1667     if opts.savefile:
1668         io_db["path_save"] = opts.savefile
1669         io_db["path_record"] = "record_" + opts.savefile
1670     setup_server_io()
1671     if opts.verbose:
1672         io_db["verbose"] = True
1673     if None != opts.replay:
1674         replay_game()
1675     else:
1676         play_game()
1677 except SystemExit as exit:
1678     print("ABORTING: " + exit.args[0])
1679 except:
1680     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
1681     raise
1682 finally:
1683     cleanup_server_io()