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_ACTIVE"], 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. Commands that start with a lowercase
 113     letter are ignored when world_db["WORLD_ACTIVE"] is False/0.
 114     """
 115     server_test()
 116     if io_db["verbose"]:
 117         print("input " + prefix + ": " + command)
 118     try:
 119         tokens = shlex.split(command, comments=True)
 120     except ValueError as err:
 121         print("Can't tokenize command string: " + str(err) + ".")
 122         return
 123     if len(tokens) > 0 and tokens[0] in commands_db \
 124        and len(tokens) == commands_db[tokens[0]][0] + 1:
 125         if commands_db[tokens[0]][1]:
 126             commands_db[tokens[0]][2](*tokens[1:])
 127         elif tokens[0][0].islower() and not world_db["WORLD_ACTIVE"]:
 128             print("Ignoring lowercase-starting commands when world inactive.")
 129         elif replay:
 130             print("Due to replay mode, reading command as 'go on in record'.")
 131             line = io_db["file_record"].readline()
 132             if len(line) > 0:
 133                 obey(line.rstrip(), io_db["file_record"].prefix
 134                      + str(io_db["file_record"].line_n))
 135                 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 136             else:
 137                 print("Reached end of record file.")
 138         else:
 139             commands_db[tokens[0]][2](*tokens[1:])
 140             if do_record:
 141                 io_db["record_chunk"] += command + "\n"
 142                 if time.time() > io_db["save_wait"] + 15:
 143                     atomic_write(io_db["path_record"], io_db["record_chunk"],
 144                                  do_append=True)
 145                     if world_db["WORLD_ACTIVE"]:
 146                         save_world()
 147                     io_db["record_chunk"] = ""
 148                     io_db["save_wait"] = time.time()
 149             io_db["worldstate_updateable"] = world_db["WORLD_ACTIVE"]
 150     elif 0 != len(tokens):
 151         print("Invalid command/argument, or bad number of tokens.")
 152
 153
 154 def atomic_write(path, text, do_append=False, delete=True):
 155     """Atomic write of text to file at path, appended if do_append is set."""
 156     path_tmp = path + io_db["tmp_suffix"]
 157     mode = "w"
 158     if do_append:
 159         mode = "a"
 160         if os.access(path, os.F_OK):
 161             shutil.copyfile(path, path_tmp)
 162     file = open(path_tmp, mode)
 163     strong_write(file, text)
 164     file.close()
 165     if delete and os.access(path, os.F_OK):
 166         os.remove(path)
 167     os.rename(path_tmp, path)
 168
 169
 170 def save_world():
 171     """Save all commands needed to reconstruct current world state."""
 172
 173     def quote(string):
 174         string = string.replace("\u005C", '\u005C\u005C')
 175         return '"' + string.replace('"', '\u005C"') + '"'
 176
 177     def mapsetter(key):
 178         def helper(id=None):
 179             string = ""
 180             if key == "MAP" or world_db["Things"][id][key]:
 181                 map = world_db["MAP"] if key == "MAP" \
 182                                       else 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 sorted(world_db[category].keys()):
 201             string = string + id_string + " " + str(id) + "\n"
 202             for key in sorted(world_db[category][id].keys()):
 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 sorted(world_db.keys()):
 213         if (not isinstance(world_db[key], dict)) and key != "MAP" and \
 214            key != "WORLD_ACTIVE":
 215             string = string + key + " " + str(world_db[key]) + "\n"
 216     string = string + mapsetter("MAP")()
 217     string = string + helper("ThingActions", "TA_ID")
 218     string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
 219     for id in sorted(world_db["ThingTypes"].keys()):
 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 sorted(world_db["Things"].keys()):
 228         if [] != world_db["Things"][id]["T_CARRIES"]:
 229             string = string + "T_ID " + str(id) + "\n"
 230             for carried in sorted(world_db["Things"][id]["T_CARRIES"]):
 231                 string = string + "T_CARRIES " + str(carried) + "\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 write_map(string, map):
 310             for i in range(length):
 311                 line = map[i * length:(i * length) + length].decode()
 312                 string = string + line + "\n"
 313             return string
 314
 315         inventory = ""
 316         if [] == world_db["Things"][0]["T_CARRIES"]:
 317             inventory = "(none)\n"
 318         else:
 319             for id in world_db["Things"][0]["T_CARRIES"]:
 320                 type_id = world_db["Things"][id]["T_TYPE"]
 321                 name = world_db["ThingTypes"][type_id]["TT_NAME"]
 322                 inventory = inventory + name + "\n"
 323         string = str(world_db["TURN"]) + "\n" + \
 324             str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
 325             str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
 326             inventory + "%\n" + \
 327             str(world_db["Things"][0]["T_POSY"]) + "\n" + \
 328             str(world_db["Things"][0]["T_POSX"]) + "\n" + \
 329             str(world_db["MAP_LENGTH"]) + "\n"
 330         length = world_db["MAP_LENGTH"]
 331         fov = bytearray(b' ' * (length ** 2))
 332         ord_v = ord("v")
 333         for pos in [pos for pos in range(length ** 2)
 334                         if ord_v == world_db["Things"][0]["fovmap"][pos]]:
 335             fov[pos] = world_db["MAP"][pos]
 336         length = world_db["MAP_LENGTH"]
 337         for id in [id for tid in reversed(sorted(list(world_db["ThingTypes"])))
 338                       for id in world_db["Things"]
 339                       if not world_db["Things"][id]["carried"]
 340                       if world_db["Things"][id]["T_TYPE"] == tid
 341                       if world_db["Things"][0]["fovmap"][
 342                            world_db["Things"][id]["T_POSY"] * length
 343                            + world_db["Things"][id]["T_POSX"]] == ord_v]:
 344             type = world_db["Things"][id]["T_TYPE"]
 345             c = ord(world_db["ThingTypes"][type]["TT_SYMBOL"])
 346             fov[world_db["Things"][id]["T_POSY"] * length
 347                 + world_db["Things"][id]["T_POSX"]] = c
 348         string = write_map(string, fov)
 349         mem = world_db["Things"][0]["T_MEMMAP"][:]
 350         for mt in [mt for tid in reversed(sorted(list(world_db["ThingTypes"])))
 351                       for mt in world_db["Things"][0]["T_MEMTHING"]
 352                       if mt[0] == tid]:
 353              c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
 354              mem[(mt[1] * length) + mt[2]] = ord(c)
 355         string = write_map(string, mem)
 356         atomic_write(io_db["path_worldstate"], string, delete=False)
 357         strong_write(io_db["file_out"], "WORLD_UPDATED\n")
 358         io_db["worldstate_updateable"] = False
 359
 360
 361 def replay_game():
 362     """Replay game from record file.
 363
 364     Use opts.replay as breakpoint turn to which to replay automatically before
 365     switching to manual input by non-meta commands in server input file
 366     triggering further reads of record file. Ensure opts.replay is at least 1.
 367     Run try_worldstate_update() before each interactive obey()/read_command().
 368     """
 369     if opts.replay < 1:
 370         opts.replay = 1
 371     print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
 372           " (if so late a turn is to be found).")
 373     if not os.access(io_db["path_record"], os.F_OK):
 374         raise SystemExit("No record file found to replay.")
 375     io_db["file_record"] = open(io_db["path_record"], "r")
 376     io_db["file_record"].prefix = "record file line "
 377     io_db["file_record"].line_n = 1
 378     while world_db["TURN"] < opts.replay:
 379         line = io_db["file_record"].readline()
 380         if "" == line:
 381             break
 382         obey(line.rstrip(), io_db["file_record"].prefix
 383              + str(io_db["file_record"].line_n))
 384         io_db["file_record"].line_n = io_db["file_record"].line_n + 1
 385     while True:
 386         try_worldstate_update()
 387         obey(read_command(), "in file", replay=True)
 388
 389
 390 def play_game():
 391     """Play game by server input file commands. Before, load save file found.
 392
 393     If no save file is found, a new world is generated from the commands in the
 394     world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
 395     command and all that follow via the server input file. Run
 396     try_worldstate_update() before each interactive obey()/read_command().
 397     """
 398     if os.access(io_db["path_save"], os.F_OK):
 399         obey_lines_in_file(io_db["path_save"], "save")
 400     else:
 401         if not os.access(io_db["path_worldconf"], os.F_OK):
 402             msg = "No world config file from which to start a new world."
 403             raise SystemExit(msg)
 404         obey_lines_in_file(io_db["path_worldconf"], "world config ",
 405                            do_record=True)
 406         obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
 407     while True:
 408         try_worldstate_update()
 409         obey(read_command(), "in file", do_record=True)
 410
 411
 412 def make_map():
 413     """(Re-)make island map.
 414
 415     Let "~" represent water, "." land, "X" trees: Build island shape randomly,
 416     start with one land cell in the middle, then go into cycle of repeatedly
 417     selecting a random sea cell and transforming it into land if it is neighbor
 418     to land. The cycle ends when a land cell is due to be created at the map's
 419     border. Then put some trees on the map (TODO: more precise algorithm desc).
 420     """
 421
 422     def is_neighbor(coordinates, type):
 423         y = coordinates[0]
 424         x = coordinates[1]
 425         length = world_db["MAP_LENGTH"]
 426         ind = y % 2
 427         diag_west = x + (ind > 0)
 428         diag_east = x + (ind < (length - 1))
 429         pos = (y * length) + x
 430         if (y > 0 and diag_east
 431             and type == chr(world_db["MAP"][pos - length + ind])) \
 432            or (x < (length - 1)
 433                and type == chr(world_db["MAP"][pos + 1])) \
 434            or (y < (length - 1) and diag_east
 435                and type == chr(world_db["MAP"][pos + length + ind])) \
 436            or (y > 0 and diag_west
 437                and type == chr(world_db["MAP"][pos - length - (not ind)])) \
 438            or (x > 0
 439                and type == chr(world_db["MAP"][pos - 1])) \
 440            or (y < (length - 1) and diag_west
 441                and type == chr(world_db["MAP"][pos + length - (not ind)])):
 442             return True
 443         return False
 444
 445     world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
 446     length = world_db["MAP_LENGTH"]
 447     add_half_width = (not (length % 2)) * int(length / 2)
 448     world_db["MAP"][int((length ** 2) / 2) + add_half_width] = ord(".")
 449     while (1):
 450         y = rand.next() % length
 451         x = rand.next() % length
 452         pos = (y * length) + x
 453         if "~" == chr(world_db["MAP"][pos]) and is_neighbor((y, x), "."):
 454             if y == 0 or y == (length - 1) or x == 0 or x == (length - 1):
 455                 break
 456             world_db["MAP"][pos] = ord(".")
 457     n_trees = int((length ** 2) / 16)
 458     i_trees = 0
 459     while (i_trees <= n_trees):
 460         single_allowed = rand.next() % 32
 461         y = rand.next() % length
 462         x = rand.next() % length
 463         pos = (y * length) + x
 464         if "." == chr(world_db["MAP"][pos]) \
 465                 and ((not single_allowed) or is_neighbor((y, x), "X")):
 466             world_db["MAP"][pos] = ord("X")
 467             i_trees += 1
 468     # This all-too-precise replica of the original C code misses iter_limit().
 469
 470
 471 def update_map_memory(t, age_map=True):
 472     """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
 473
 474     def age_some_memdepthmap_on_nonfov_cells():
 475         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 476         # ord_v = ord("v")
 477         # ord_0 = ord("0")
 478         # ord_9 = ord("9")
 479         # for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 480         #             if not ord_v == t["fovmap"][pos]
 481         #             if ord_0 <= t["T_MEMDEPTHMAP"][pos]
 482         #             if ord_9 > t["T_MEMDEPTHMAP"][pos]
 483         #             if not rand.next() % (2 **
 484         #                                   (t["T_MEMDEPTHMAP"][pos] - 48))]:
 485         #     t["T_MEMDEPTHMAP"][pos] += 1
 486         memdepthmap = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 487         fovmap = c_pointer_to_bytearray(t["fovmap"])
 488         libpr.age_some_memdepthmap_on_nonfov_cells(memdepthmap, fovmap)
 489
 490     if not t["T_MEMMAP"]:
 491         t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 492     if not t["T_MEMDEPTHMAP"]:
 493         t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 494     ord_v = ord("v")
 495     ord_0 = ord("0")
 496     for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
 497                 if ord_v == t["fovmap"][pos]]:
 498         t["T_MEMDEPTHMAP"][pos] = ord_0
 499         t["T_MEMMAP"][pos] = world_db["MAP"][pos]
 500     if age_map:
 501         age_some_memdepthmap_on_nonfov_cells()
 502     t["T_MEMTHING"] = [mt for mt in t["T_MEMTHING"]
 503                        if ord_v != t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
 504                                                + mt[2]]]
 505     for id in [id for id in world_db["Things"]
 506                if not world_db["Things"][id]["carried"]]:
 507         type = world_db["Things"][id]["T_TYPE"]
 508         if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
 509             y = world_db["Things"][id]["T_POSY"]
 510             x = world_db["Things"][id]["T_POSX"]
 511             if ord_v == t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]:
 512                 t["T_MEMTHING"].append((type, y, x))
 513
 514
 515 def set_world_inactive():
 516     """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
 517     server_test()
 518     if os.access(io_db["path_worldstate"], os.F_OK):
 519         os.remove(io_db["path_worldstate"])
 520     world_db["WORLD_ACTIVE"] = 0
 521
 522
 523 def integer_test(val_string, min, max=None):
 524     """Return val_string if integer >= min & (if max set) <= max, else None."""
 525     try:
 526         val = int(val_string)
 527         if val < min or (max is not None and val > max):
 528             raise ValueError
 529         return val
 530     except ValueError:
 531         msg = "Ignoring: Please use integer >= " + str(min)
 532         if max is not None:
 533             msg += " and <= " + str(max)
 534         msg += "."
 535         print(msg)
 536         return None
 537
 538
 539 def setter(category, key, min, max=None):
 540     """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
 541     if category is None:
 542         def f(val_string):
 543             val = integer_test(val_string, min, max)
 544             if None != val:
 545                 world_db[key] = val
 546     else:
 547         if category == "Thing":
 548             id_store = command_tid
 549             decorator = test_Thing_id
 550         elif category == "ThingType":
 551             id_store = command_ttid
 552             decorator = test_ThingType_id
 553         elif category == "ThingAction":
 554             id_store = command_taid
 555             decorator = test_ThingAction_id
 556
 557         @decorator
 558         def f(val_string):
 559             val = integer_test(val_string, min, max)
 560             if None != val:
 561                 world_db[category + "s"][id_store.id][key] = val
 562     return f
 563
 564
 565 def build_fov_map(t):
 566     """Build Thing's FOV map."""
 567     t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
 568     fovmap = c_pointer_to_bytearray(t["fovmap"])
 569     map = c_pointer_to_bytearray(world_db["MAP"])
 570     if libpr.build_fov_map(t["T_POSY"], t["T_POSX"], fovmap, map):
 571         raise RuntimeError("Malloc error in build_fov_Map().")
 572
 573
 574 def log_help():
 575     """Send quick usage info to log."""
 576     strong_write(io_db["file_out"], "LOG See README file for help.\n")
 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     Dying actors drop all their things.
 585     """
 586     t["T_LIFEPOINTS"] -= 1
 587     if 0 == t["T_LIFEPOINTS"]:
 588         for id in t["T_CARRIES"]:
 589             t["T_CARRIES"].remove(id)
 590             world_db["Things"][id]["T_POSY"] = t["T_POSY"]
 591             world_db["Things"][id]["T_POSX"] = t["T_POSX"]
 592             world_db["Things"][id]["carried"] = False
 593         t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
 594         if world_db["Things"][0] == t:
 595             t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
 596             strong_write(io_db["file_out"], "LOG You die.\n")
 597             strong_write(io_db["file_out"],
 598                          "LOG See README on how to start over.\n")
 599         else:
 600             t["fovmap"] = False
 601             t["T_MEMMAP"] = False
 602             t["T_MEMDEPTHMAP"] = False
 603             t["T_MEMTHING"] = []
 604
 605
 606 def mv_yx_in_dir_legal(dir, y, x):
 607     """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
 608     dir_c = dir.encode("ascii")[0]
 609     test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
 610     if -1 == test:
 611         raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
 612     return (test, libpr.result_y(), libpr.result_x())
 613
 614
 615 def actor_wait(t):
 616     """Make t do nothing (but loudly, if player avatar)."""
 617     if t == world_db["Things"][0]:
 618         strong_write(io_db["file_out"], "LOG You wait.\n")
 619
 620
 621 def actor_move(t):
 622     """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
 623     passable = False
 624     move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
 625                                      t["T_POSY"], t["T_POSX"])
 626     if 1 == move_result[0]:
 627         pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
 628         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 "
 639                                                 + hitted_name + ".\n")
 640             elif 0 == hit_id:
 641                 hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
 642                 strong_write(io_db["file_out"], "LOG " + hitter_name +
 643                                                 " wounds you.\n")
 644             decrement_lifepoints(world_db["Things"][hit_id])
 645             return
 646         passable = "." == chr(world_db["MAP"][pos])
 647     dir = [dir for dir in directions_db
 648            if directions_db[dir] == chr(t["T_ARGUMENT"])][0]
 649     if passable:
 650         t["T_POSY"] = move_result[1]
 651         t["T_POSX"] = move_result[2]
 652         for id in t["T_CARRIES"]:
 653             world_db["Things"][id]["T_POSY"] = move_result[1]
 654             world_db["Things"][id]["T_POSX"] = move_result[2]
 655         build_fov_map(t)
 656         if t == world_db["Things"][0]:
 657             strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
 658     elif t == world_db["Things"][0]:
 659         strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
 660
 661
 662 def actor_pick_up(t):
 663     """Make t pick up (topmost?) Thing from ground into inventory.
 664
 665     Define topmostness by how low the thing's type ID is.
 666     """
 667     ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
 668            if not world_db["Things"][id]["carried"]
 669            if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 670            if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
 671     if len(ids):
 672         lowest_tid = -1
 673         for iid in ids:
 674             tid = world_db["Things"][iid]["T_TYPE"]
 675             if lowest_tid == -1 or tid < lowest_tid:
 676                 id = iid
 677                 lowest_tid = tid
 678         world_db["Things"][id]["carried"] = True
 679         t["T_CARRIES"].append(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
 686
 687 def actor_drop(t):
 688     """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
 689     # TODO: Handle case where T_ARGUMENT matches nothing.
 690     if len(t["T_CARRIES"]):
 691         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 692         t["T_CARRIES"].remove(id)
 693         world_db["Things"][id]["carried"] = False
 694         if t == world_db["Things"][0]:
 695             strong_write(io_db["file_out"], "LOG You drop an object.\n")
 696     elif t == world_db["Things"][0]:
 697         err = "You try to drop an object, but you own none."
 698         strong_write(io_db["file_out"], "LOG " + err + "\n")
 699
 700
 701 def actor_use(t):
 702     """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
 703     # TODO: Handle case where T_ARGUMENT matches nothing.
 704     if len(t["T_CARRIES"]):
 705         id = t["T_CARRIES"][t["T_ARGUMENT"]]
 706         type = world_db["Things"][id]["T_TYPE"]
 707         if world_db["ThingTypes"][type]["TT_TOOL"] == "food":
 708             t["T_CARRIES"].remove(id)
 709             del world_db["Things"][id]
 710             t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_TOOLPOWER"]
 711             if t == world_db["Things"][0]:
 712                 strong_write(io_db["file_out"],
 713                              "LOG You consume this object.\n")
 714         elif t == world_db["Things"][0]:
 715             strong_write(io_db["file_out"],
 716                          "LOG You try to use this object, but fail.\n")
 717     elif t == world_db["Things"][0]:
 718         strong_write(io_db["file_out"],
 719                      "LOG You try to use an object, but you own none.\n")
 720
 721
 722 def thingproliferation(t, prol_map):
 723     """To chance of 1/TT_PROLIFERATE, create t offspring in open neighbor cell.
 724
 725     Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be be
 726     marked '.' in prol_map. If there are several map cell candidates, one is
 727     selected randomly.
 728     """
 729     prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
 730     if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
 731         candidates = []
 732         for dir in [directions_db[key] for key in sorted(directions_db.keys())]:
 733             mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
 734             if mv_result[0] and  ord('.') == prol_map[mv_result[1]
 735                                                       * world_db["MAP_LENGTH"]
 736                                                       + mv_result[2]]:
 737                 candidates.append((mv_result[1], mv_result[2]))
 738         if len(candidates):
 739             i = rand.next() % len(candidates)
 740             id = id_setter(-1, "Things")
 741             newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
 742             world_db["Things"][id] = newT
 743
 744
 745 def try_healing(t):
 746     """Grow t's HP to a 1/32 chance if < HP max, satiation > 0, and waiting.
 747
 748     On success, decrease satiation score by 32.
 749     """
 750     if t["T_SATIATION"] > 0 \
 751        and t["T_LIFEPOINTS"] < \
 752         world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] \
 753        and 0 == (rand.next() % 31) \
 754        and t["T_COMMAND"] == [id for id in world_db["ThingActions"]
 755                               if world_db["ThingActions"][id]["TA_NAME"] ==
 756                               "wait"][0]:
 757         t["T_LIFEPOINTS"] += 1
 758         t["T_SATIATION"] -= 32
 759         if t == world_db["Things"][0]:
 760             strong_write(io_db["file_out"], "LOG You heal.\n")
 761
 762
 763 def hunger(t):
 764     """Decrement t's satiation,dependent on it trigger lifepoint dec chance."""
 765     if t["T_SATIATION"] > -32768:
 766         t["T_SATIATION"] -= 1
 767     testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
 768     if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
 769         raise RuntimeError("A thing that should not hunger is hungering.")
 770     stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
 771     if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
 772         if t == world_db["Things"][0]:
 773             if t["T_SATIATION"] < 0:
 774                 strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
 775             else:
 776                 strong_write(io_db["file_out"],
 777                              "LOG You suffer from over-eating.\n")
 778         decrement_lifepoints(t)
 779
 780
 781 def get_dir_to_target(t, filter):
 782     """Try to set T_COMMAND/T_ARGUMENT for move to "filter"-determined target.
 783
 784     The path-wise nearest target is chosen, via the shortest available path.
 785     Target must not be t. On succcess, return positive value, else False.
 786     Filters:
 787     "a": Thing in FOV is below a certain distance, animate, but of ThingType
 788          that is not t's, and starts out weaker than t is; build path as
 789          avoiding things of t's ThingType
 790     "f": neighbor cell (not inhabited by any animate Thing) further away from
 791          animate Thing not further than x steps away and in FOV and of a
 792          ThingType that is not t's, and starts out stronger or as strong as t
 793          is currently; or (cornered), if no such flight cell, but Thing of
 794          above criteria is too near,1 a cell closer to it, or, if less near,
 795          just wait
 796     "c": Thing in memorized map is consumable
 797     "s": memory map cell with greatest-reachable degree of unexploredness
 798     """
 799
 800     def zero_score_map_where_char_on_memdepthmap(c):
 801         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 802         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 803         #           if t["T_MEMDEPTHMAP"][i] == mem_depth_c[0]]:
 804         #     set_map_score(i, 0)
 805         map = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
 806         if libpr.zero_score_map_where_char_on_memdepthmap(c, map):
 807             raise RuntimeError("No score map allocated for "
 808                                "zero_score_map_where_char_on_memdepthmap().")
 809
 810     def set_map_score(pos, score):
 811         test = libpr.set_map_score(pos, score)
 812         if test:
 813             raise RuntimeError("No score map allocated for set_map_score().")
 814
 815     def get_map_score(pos):
 816         result = libpr.get_map_score(pos)
 817         if result < 0:
 818             raise RuntimeError("No score map allocated for get_map_score().")
 819         return result
 820
 821     def seeing_thing():
 822         if t["fovmap"] and ("a" == filter or "f" == filter):
 823             for id in world_db["Things"]:
 824                 Thing = world_db["Things"][id]
 825                 if Thing != t and Thing["T_LIFEPOINTS"] and \
 826                    t["T_TYPE"] != Thing["T_TYPE"] and \
 827                    'v' == chr(t["fovmap"][(Thing["T_POSY"]
 828                                           * world_db["MAP_LENGTH"])
 829                                           + Thing["T_POSX"]]):
 830                     ThingType = world_db["ThingTypes"][Thing["T_TYPE"]]
 831                     if ("f" == filter and ThingType["TT_LIFEPOINTS"] >=
 832                         t["T_LIFEPOINTS"]) \
 833                        or ("a" == filter and ThingType["TT_LIFEPOINTS"] <
 834                             t["T_LIFEPOINTS"]):
 835                         return True
 836         elif t["T_MEMMAP"] and "c" == filter:
 837             for mt in t["T_MEMTHING"]:
 838                 if ' ' != chr(t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
 839                                             + mt[2]]) \
 840                    and world_db["ThingTypes"][mt[0]]["TT_TOOL"] == "food":
 841                     return True
 842         return False
 843
 844     def set_cells_passable_on_memmap_to_65534_on_scoremap():
 845         # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
 846         # ord_dot = ord(".")
 847         # memmap = t["T_MEMMAP"]
 848         # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
 849         #            if ord_dot == memmap[i]]:
 850         #     set_map_score(i, 65534) # i.e. 65535-1
 851         map = c_pointer_to_bytearray(t["T_MEMMAP"])
 852         if libpr.set_cells_passable_on_memmap_to_65534_on_scoremap(map):
 853             raise RuntimeError("No score map allocated for set_cells_passable"
 854                                "_on_memmap_to_65534_on_scoremap().")
 855
 856     def init_score_map():
 857         test = libpr.init_score_map()
 858         if test:
 859             raise RuntimeError("Malloc error in init_score_map().")
 860         ord_v = ord("v")
 861         ord_blank = ord(" ")
 862         set_cells_passable_on_memmap_to_65534_on_scoremap()
 863         if "a" == filter:
 864             for id in world_db["Things"]:
 865                 Thing = world_db["Things"][id]
 866                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 867                     + Thing["T_POSX"]
 868                 if t != Thing and Thing["T_LIFEPOINTS"] and \
 869                    t["T_TYPE"] != Thing["T_TYPE"] and \
 870                    ord_v == t["fovmap"][pos] and \
 871                    t["T_LIFEPOINTS"] > \
 872                    world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
 873                     set_map_score(pos, 0)
 874                 elif t["T_TYPE"] == Thing["T_TYPE"]:
 875                     set_map_score(pos, 65535)
 876         elif "f" == filter:
 877             for id in [id for id in world_db["Things"]
 878                        if world_db["Things"][id]["T_LIFEPOINTS"]]:
 879                 Thing = world_db["Things"][id]
 880                 pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
 881                     + Thing["T_POSX"]
 882                 if 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 "c" == filter:
 888             for mt in [mt for mt in t["T_MEMTHING"]
 889                        if ord_blank != t["T_MEMMAP"][mt[1]
 890                                                      * world_db["MAP_LENGTH"]
 891                                                      + mt[2]]
 892                        if world_db["ThingTypes"][mt[0]]["TT_TOOL"] == "food"]:
 893                 set_map_score(mt[1] * world_db["MAP_LENGTH"] + mt[2], 0)
 894         elif "s" == filter:
 895             zero_score_map_where_char_on_memdepthmap(mem_depth_c[0])
 896
 897     def rand_target_dir(neighbors, cmp, dirs):
 898         candidates = []
 899         n_candidates = 0
 900         for i in range(len(dirs)):
 901             if cmp == neighbors[i]:
 902                 candidates.append(dirs[i])
 903                 n_candidates += 1
 904         return candidates[rand.next() % n_candidates] if n_candidates else 0
 905
 906     def get_neighbor_scores(dirs, eye_pos):
 907         scores = []
 908         if libpr.ready_neighbor_scores(eye_pos):
 909             raise RuntimeError("No score map allocated for " +
 910                                "ready_neighbor_scores.()")
 911         for i in range(len(dirs)):
 912             scores.append(libpr.get_neighbor_score(i))
 913         return scores
 914
 915     def get_dir_from_neighbors():
 916         dir_to_target = False
 917         dirs = "edcxsw"
 918         eye_pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
 919         neighbors = get_neighbor_scores(dirs, eye_pos)
 920         if "f" == filter:
 921             inhabited = [world_db["Things"][id]["T_POSY"]
 922                          * world_db["MAP_LENGTH"]
 923                          + world_db["Things"][id]["T_POSX"]
 924                          for id in world_db["Things"]
 925                          if world_db["Things"][id]["T_LIFEPOINTS"]]
 926             for i in range(len(dirs)):
 927                 mv_yx_in_dir_legal(dirs[i], t["T_POSY"], t["T_POSX"])
 928                 pos_cmp = libpr.result_y() * world_db["MAP_LENGTH"] \
 929                     + libpr.result_x()
 930                 for pos in [pos for pos in inhabited if pos == pos_cmp]:
 931                     neighbors[i] = 65535
 932                     break
 933         minmax_start = 0 if "f" == filter else 65535 - 1
 934         minmax_neighbor = minmax_start
 935         for i in range(len(dirs)):
 936             if ("f" == filter and get_map_score(eye_pos) < neighbors[i] and
 937                 minmax_neighbor < neighbors[i] and 65535 != neighbors[i]) \
 938                or ("f" != filter and minmax_neighbor > neighbors[i]):
 939                 minmax_neighbor = neighbors[i]
 940         if minmax_neighbor != minmax_start:
 941             dir_to_target = rand_target_dir(neighbors, minmax_neighbor, dirs)
 942         if "f" == filter:
 943             if not dir_to_target:
 944                 if 1 == get_map_score(eye_pos):
 945                     dir_to_target = rand_target_dir(neighbors, 0, dirs)
 946                 elif 3 >= get_map_score(eye_pos):
 947                     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 948                                       if
 949                                       world_db["ThingActions"][id]["TA_NAME"]
 950                                       == "wait"][0]
 951                     return 1
 952             elif dir_to_target and 3 < get_map_score(eye_pos):
 953                 dir_to_target = 0
 954         elif "a" == filter and 10 <= get_map_score(eye_pos):
 955             dir_to_target = 0
 956         return dir_to_target
 957
 958     dir_to_target = False
 959     mem_depth_c = b' '
 960     run_i = 9 + 1 if "s" == filter else 1
 961     while run_i and not dir_to_target and ("s" == filter or seeing_thing()):
 962         run_i -= 1
 963         init_score_map()
 964         mem_depth_c = b'9' if b' ' == mem_depth_c \
 965             else bytes([mem_depth_c[0] - 1])
 966         if libpr.dijkstra_map():
 967             raise RuntimeError("No score map allocated for dijkstra_map().")
 968         dir_to_target = get_dir_from_neighbors()
 969         libpr.free_score_map()
 970         if dir_to_target and str == type(dir_to_target):
 971             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
 972                               if world_db["ThingActions"][id]["TA_NAME"]
 973                               == "move"][0]
 974             t["T_ARGUMENT"] = ord(dir_to_target)
 975     return dir_to_target
 976
 977
 978 def standing_on_food(t):
 979     """Return True/False whether t is standing on a consumable."""
 980     for id in [id for id in world_db["Things"] if world_db["Things"][id] != t
 981                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
 982                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]
 983                if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
 984                           ["TT_TOOL"] == "food"]:
 985         return True
 986     return False
 987
 988
 989 def get_inventory_slot_to_consume(t):
 990     """Return slot Id of strongest consumable in t's inventory, else -1."""
 991     cmp_food = 0
 992     selection = -1
 993     i = 0
 994     for id in t["T_CARRIES"]:
 995         type = world_db["Things"][id]["T_TYPE"]
 996         if world_db["ThingTypes"][type]["TT_TOOL"] == "food" \
 997            and world_db["ThingTypes"][type]["TT_TOOLPOWER"] > cmp_food:
 998             cmp_food = world_db["ThingTypes"][type]["TT_TOOLPOWER"]
 999             selection = i
1000         i += 1
1001     return selection
1002
1003
1004 def ai(t):
1005     """Determine next command/argment for actor t via AI algorithms.
1006
1007     AI will look for, and move towards, enemies (animate Things not of their
1008     own ThingType); if they see none, they will consume consumables in their
1009     inventory; if there are none, they will pick up what they stand on if they
1010     stand on consumables; if they stand on none, they will move towards the
1011     next consumable they see or remember on the map; if they see or remember
1012     none, they will explore parts of the map unseen since ever or for at least
1013     one turn; if there is nothing to explore, they will simply wait.
1014     """
1015     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1016                       if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
1017     if not get_dir_to_target(t, "f"):
1018         sel = get_inventory_slot_to_consume(t)
1019         if -1 != sel:
1020             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1021                               if world_db["ThingActions"][id]["TA_NAME"]
1022                               == "use"][0]
1023             t["T_ARGUMENT"] = sel
1024         elif standing_on_food(t):
1025             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
1026                               if world_db["ThingActions"][id]["TA_NAME"]
1027                               == "pick_up"][0]
1028         elif (not get_dir_to_target(t, "c")) and \
1029              (not get_dir_to_target(t, "a")):
1030             get_dir_to_target(t, "s")
1031
1032
1033 def turn_over():
1034     """Run game world and its inhabitants until new player input expected."""
1035     id = 0
1036     whilebreaker = False
1037     while world_db["Things"][0]["T_LIFEPOINTS"]:
1038         proliferable_map = world_db["MAP"][:]
1039         for id in [id for id in world_db["Things"]
1040                    if not world_db["Things"][id]["carried"]]:
1041             y = world_db["Things"][id]["T_POSY"]
1042             x = world_db["Things"][id]["T_POSX"]
1043             proliferable_map[y * world_db["MAP_LENGTH"] + x] = ord('X')
1044         for id in [id for id in world_db["Things"]]:  # Only what's from start!
1045             if not id in world_db["Things"] or \
1046                world_db["Things"][id]["carried"]:   # May have been consumed or
1047                 continue                            # picked up during turn …
1048             Thing = world_db["Things"][id]
1049             if Thing["T_LIFEPOINTS"]:
1050                 if not Thing["T_COMMAND"]:
1051                     update_map_memory(Thing)
1052                     if 0 == id:
1053                         whilebreaker = True
1054                         break
1055                     ai(Thing)
1056                 try_healing(Thing)
1057                 hunger(Thing)
1058                 if Thing["T_LIFEPOINTS"]:
1059                     Thing["T_PROGRESS"] += 1
1060                     taid = [a for a in world_db["ThingActions"]
1061                               if a == Thing["T_COMMAND"]][0]
1062                     ThingAction = world_db["ThingActions"][taid]
1063                     if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
1064                         eval("actor_" + ThingAction["TA_NAME"])(Thing)
1065                         Thing["T_COMMAND"] = 0
1066                         Thing["T_PROGRESS"] = 0
1067             thingproliferation(Thing, proliferable_map)
1068         if whilebreaker:
1069             break
1070         world_db["TURN"] += 1
1071
1072
1073 def new_Thing(type, pos=(0, 0)):
1074     """Return Thing of type T_TYPE, with fovmap if alive and world active."""
1075     thing = {
1076         "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
1077         "T_ARGUMENT": 0,
1078         "T_PROGRESS": 0,
1079         "T_SATIATION": 0,
1080         "T_COMMAND": 0,
1081         "T_TYPE": type,
1082         "T_POSY": pos[0],
1083         "T_POSX": pos[1],
1084         "T_CARRIES": [],
1085         "carried": False,
1086         "T_MEMTHING": [],
1087         "T_MEMMAP": False,
1088         "T_MEMDEPTHMAP": False,
1089         "fovmap": False
1090     }
1091     if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
1092         build_fov_map(thing)
1093     return thing
1094
1095
1096 def id_setter(id, category, id_store=False, start_at_1=False):
1097     """Set ID of object of category to manipulate ID unused? Create new one.
1098     The ID is stored as id_store.id (if id_store is set). If the integer of the
1099     input is valid (if start_at_1, >= 0, else >= -1), but <0 or (if start_at_1)
1100     <1, calculate new ID: lowest unused ID >=0 or (if start_at_1) >= 1. None is
1101     always returned when no new object is created, else the new object's ID.
1102     """
1103     min = 0 if start_at_1 else -1
1104     if str == type(id):
1105         id = integer_test(id, min)
1106     if None != id:
1107         if id in world_db[category]:
1108             if id_store:
1109                 id_store.id = id
1110             return None
1111         else:
1112             if (start_at_1 and 0 == id) \
1113                or ((not start_at_1) and (id < 0)):
1114                 id = 0 if start_at_1 else -1
1115                 while 1:
1116                     id = id + 1
1117                     if id not in world_db[category]:
1118                         break
1119             if id_store:
1120                 id_store.id = id
1121     return id
1122
1123
1124 def command_ping():
1125     """Send PONG line to server output file."""
1126     strong_write(io_db["file_out"], "PONG\n")
1127
1128
1129 def command_quit():
1130     """Abort server process."""
1131     if None == opts.replay:
1132         if world_db["WORLD_ACTIVE"]:
1133             save_world()
1134         atomic_write(io_db["path_record"], io_db["record_chunk"], do_append=True)
1135     raise SystemExit("received QUIT command")
1136
1137
1138 def command_thingshere(str_y, str_x):
1139     """Write to out file list of Things known to player at coordinate y, x."""
1140     if world_db["WORLD_ACTIVE"]:
1141         y = integer_test(str_y, 0, 255)
1142         x = integer_test(str_x, 0, 255)
1143         length = world_db["MAP_LENGTH"]
1144         if None != y and None != x and y < length and x < length:
1145             pos = (y * world_db["MAP_LENGTH"]) + x
1146             strong_write(io_db["file_out"], "THINGS_HERE START\n")
1147             if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
1148                 for id in [id for tid in sorted(list(world_db["ThingTypes"]))
1149                               for id in world_db["Things"]
1150                               if not world_db["Things"][id]["carried"]
1151                               if world_db["Things"][id]["T_TYPE"] == tid
1152                               if y == world_db["Things"][id]["T_POSY"]
1153                               if x == world_db["Things"][id]["T_POSX"]]:
1154                     type = world_db["Things"][id]["T_TYPE"]
1155                     name = world_db["ThingTypes"][type]["TT_NAME"]
1156                     strong_write(io_db["file_out"], name + "\n")
1157             else:
1158                 for mt in [mt for tid in sorted(list(world_db["ThingTypes"]))
1159                               for mt in world_db["Things"][0]["T_MEMTHING"]
1160                               if mt[0] == tid if y == mt[1] if x == mt[2]]:
1161                     name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
1162                     strong_write(io_db["file_out"], name + "\n")
1163             strong_write(io_db["file_out"], "THINGS_HERE END\n")
1164         else:
1165             print("Ignoring: Invalid map coordinates.")
1166     else:
1167         print("Ignoring: Command only works on existing worlds.")
1168
1169
1170 def play_commander(action, args=False):
1171     """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
1172
1173     T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
1174     """
1175
1176     def set_command():
1177         id = [x for x in world_db["ThingActions"]
1178               if world_db["ThingActions"][x]["TA_NAME"] == action][0]
1179         world_db["Things"][0]["T_COMMAND"] = id
1180         turn_over()
1181
1182     def set_command_and_argument_int(str_arg):
1183         val = integer_test(str_arg, 0, 255)
1184         if None != val:
1185             world_db["Things"][0]["T_ARGUMENT"] = val
1186             set_command()
1187
1188     def set_command_and_argument_movestring(str_arg):
1189         if str_arg in directions_db:
1190             world_db["Things"][0]["T_ARGUMENT"] = ord(directions_db[str_arg])
1191             set_command()
1192         else:
1193             print("Ignoring: Argument must be valid direction string.")
1194
1195     if action == "move":
1196         return set_command_and_argument_movestring
1197     elif args:
1198         return set_command_and_argument_int
1199     else:
1200         return set_command
1201
1202
1203 def command_seedrandomness(seed_string):
1204     """Set rand seed to int(seed_string)."""
1205     val = integer_test(seed_string, 0, 4294967295)
1206     if None != val:
1207         rand.seed = val
1208
1209
1210 def command_makeworld(seed_string):
1211     """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
1212
1213     Seed rand with seed. Do more only with a "wait" ThingAction and
1214     world["PLAYER_TYPE"] matching ThingType of TT_START_NUMBER > 0. Then,
1215     world_db["Things"] emptied, call make_map() and set
1216     world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
1217     according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
1218     of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
1219     other. Init player's memory map. Write "NEW_WORLD" line to out file.
1220     Call log_help().
1221     """
1222
1223     def free_pos():
1224         i = 0
1225         while 1:
1226             err = "Space to put thing on too hard to find. Map too small?"
1227             while 1:
1228                 y = rand.next() % world_db["MAP_LENGTH"]
1229                 x = rand.next() % world_db["MAP_LENGTH"]
1230                 if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
1231                     break
1232                 i += 1
1233                 if i == 65535:
1234                     raise SystemExit(err)
1235             # Replica of C code, wrongly ignores animatedness of new Thing.
1236             pos_clear = (0 == len([id for id in world_db["Things"]
1237                                    if world_db["Things"][id]["T_LIFEPOINTS"]
1238                                    if world_db["Things"][id]["T_POSY"] == y
1239                                    if world_db["Things"][id]["T_POSX"] == x]))
1240             if pos_clear:
1241                 break
1242         return (y, x)
1243
1244     val = integer_test(seed_string, 0, 4294967295)
1245     if None == val:
1246         return
1247     rand.seed = val
1248     player_will_be_generated = False
1249     playertype = world_db["PLAYER_TYPE"]
1250     for ThingType in world_db["ThingTypes"]:
1251         if playertype == ThingType:
1252             if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
1253                 player_will_be_generated = True
1254             break
1255     if not player_will_be_generated:
1256         print("Ignoring: No player type with start number >0 defined.")
1257         return
1258     wait_action = False
1259     for ThingAction in world_db["ThingActions"]:
1260         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1261             wait_action = True
1262     if not wait_action:
1263         print("Ignoring beyond SEED_MAP: " +
1264               "No thing action with name 'wait' defined.")
1265         return
1266     world_db["Things"] = {}
1267     make_map()
1268     world_db["WORLD_ACTIVE"] = 1
1269     world_db["TURN"] = 1
1270     for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
1271         id = id_setter(-1, "Things")
1272         world_db["Things"][id] = new_Thing(playertype, free_pos())
1273     if not world_db["Things"][0]["fovmap"]:
1274         empty_fovmap = bytearray(b" " * world_db["MAP_LENGTH"] ** 2)
1275         world_db["Things"][0]["fovmap"] = empty_fovmap
1276     update_map_memory(world_db["Things"][0])
1277     for type in world_db["ThingTypes"]:
1278         for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
1279             if type != playertype:
1280                 id = id_setter(-1, "Things")
1281                 world_db["Things"][id] = new_Thing(type, free_pos())
1282     strong_write(io_db["file_out"], "NEW_WORLD\n")
1283     log_help()
1284
1285
1286 def command_maplength(maplength_string):
1287     """Redefine map length. Invalidate map, therefore lose all things on it."""
1288     val = integer_test(maplength_string, 1, 256)
1289     if None != val:
1290         world_db["MAP_LENGTH"] = val
1291         world_db["MAP"] = False
1292         set_world_inactive()
1293         world_db["Things"] = {}
1294         libpr.set_maplength(val)
1295
1296
1297 def command_worldactive(worldactive_string):
1298     """Toggle world_db["WORLD_ACTIVE"] if possible.
1299
1300     An active world can always be set inactive. An inactive world can only be
1301     set active with a "wait" ThingAction, and a player Thing (of ID 0), and a
1302     map. On activation, rebuild all Things' FOVs, and the player's map memory.
1303     Also call log_help().
1304     """
1305     val = integer_test(worldactive_string, 0, 1)
1306     if None != val:
1307         if 0 != world_db["WORLD_ACTIVE"]:
1308             if 0 == val:
1309                 set_world_inactive()
1310             else:
1311                 print("World already active.")
1312         elif 0 == world_db["WORLD_ACTIVE"]:
1313             wait_exists = False
1314             for ThingAction in world_db["ThingActions"]:
1315                 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1316                     wait_exists = True
1317                     break
1318             player_exists = False
1319             for Thing in world_db["Things"]:
1320                 if 0 == Thing:
1321                     player_exists = True
1322                     break
1323             if wait_exists and player_exists and world_db["MAP"]:
1324                 for id in world_db["Things"]:
1325                     if world_db["Things"][id]["T_LIFEPOINTS"]:
1326                         build_fov_map(world_db["Things"][id])
1327                         if 0 == id:
1328                             update_map_memory(world_db["Things"][id], False)
1329                 if not world_db["Things"][0]["T_LIFEPOINTS"]:
1330                     empty_fovmap = bytearray(b" " * world_db["MAP_LENGTH"] ** 2)
1331                     world_db["Things"][0]["fovmap"] = empty_fovmap
1332                 world_db["WORLD_ACTIVE"] = 1
1333                 log_help()
1334             else:
1335                 print("Ignoring: Not all conditions for world activation met.")
1336
1337
1338 def test_for_id_maker(object, category):
1339     """Return decorator testing for object having "id" attribute."""
1340     def decorator(f):
1341         def helper(*args):
1342             if hasattr(object, "id"):
1343                 f(*args)
1344             else:
1345                 print("Ignoring: No " + category +
1346                       " defined to manipulate yet.")
1347         return helper
1348     return decorator
1349
1350
1351 def command_tid(id_string):
1352     """Set ID of Thing to manipulate. ID unused? Create new one.
1353
1354     Default new Thing's type to the first available ThingType, others: zero.
1355     """
1356     id = id_setter(id_string, "Things", command_tid)
1357     if None != id:
1358         if world_db["ThingTypes"] == {}:
1359             print("Ignoring: No ThingType to settle new Thing in.")
1360             return
1361         type = list(world_db["ThingTypes"].keys())[0]
1362         world_db["Things"][id] = new_Thing(type)
1363
1364
1365 test_Thing_id = test_for_id_maker(command_tid, "Thing")
1366
1367
1368 @test_Thing_id
1369 def command_tcommand(str_int):
1370     """Set T_COMMAND of selected Thing."""
1371     val = integer_test(str_int, 0)
1372     if None != val:
1373         if 0 == val or val in world_db["ThingActions"]:
1374             world_db["Things"][command_tid.id]["T_COMMAND"] = val
1375         else:
1376             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
1377
1378
1379 @test_Thing_id
1380 def command_ttype(str_int):
1381     """Set T_TYPE of selected Thing."""
1382     val = integer_test(str_int, 0)
1383     if None != val:
1384         if val in world_db["ThingTypes"]:
1385             world_db["Things"][command_tid.id]["T_TYPE"] = val
1386         else:
1387             print("Ignoring: ThingType ID belongs to no known ThingType.")
1388
1389
1390 @test_Thing_id
1391 def command_tcarries(str_int):
1392     """Append int(str_int) to T_CARRIES of selected Thing.
1393
1394     The ID int(str_int) must not be of the selected Thing, and must belong to a
1395     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
1396     """
1397     val = integer_test(str_int, 0)
1398     if None != val:
1399         if val == command_tid.id:
1400             print("Ignoring: Thing cannot carry itself.")
1401         elif val in world_db["Things"] \
1402                 and not world_db["Things"][val]["carried"]:
1403             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
1404             world_db["Things"][val]["carried"] = True
1405         else:
1406             print("Ignoring: Thing not available for carrying.")
1407     # Note that the whole carrying structure is different from the C version:
1408     # Carried-ness is marked by a "carried" flag, not by Things containing
1409     # Things internally.
1410
1411
1412 @test_Thing_id
1413 def command_tmemthing(str_t, str_y, str_x):
1414     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
1415
1416     The type must fit to an existing ThingType, and the position into the map.
1417     """
1418     type = integer_test(str_t, 0)
1419     posy = integer_test(str_y, 0, 255)
1420     posx = integer_test(str_x, 0, 255)
1421     if None != type and None != posy and None != posx:
1422         if type not in world_db["ThingTypes"] \
1423            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
1424             print("Ignoring: Illegal value for thing type or position.")
1425         else:
1426             memthing = (type, posy, posx)
1427             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
1428
1429
1430 def setter_map(maptype):
1431     """Set (world or Thing's) map of maptype's int(str_int)-th line to mapline.
1432
1433     If no map of maptype exists yet, initialize it with ' ' bytes first.
1434     """
1435
1436     def valid_map_line(str_int, mapline):
1437         val = integer_test(str_int, 0, 255)
1438         if None != val:
1439             if val >= world_db["MAP_LENGTH"]:
1440                 print("Illegal value for map line number.")
1441             elif len(mapline) != world_db["MAP_LENGTH"]:
1442                 print("Map line length is unequal map width.")
1443             else:
1444                 return val
1445         return None
1446
1447     def nonThingMap_helper(str_int, mapline):
1448         val = valid_map_line(str_int, mapline)
1449         if None != val:
1450             length = world_db["MAP_LENGTH"]
1451             if not world_db["MAP"]:
1452                 map = bytearray(b' ' * (length ** 2))
1453             else:
1454                 map = world_db["MAP"]
1455             map[val * length:(val * length) + length] = mapline.encode()
1456             if not world_db["MAP"]:
1457                 world_db["MAP"] = map
1458
1459     @test_Thing_id
1460     def ThingMap_helper(str_int, mapline):
1461         val = valid_map_line(str_int, mapline)
1462         if None != val:
1463             length = world_db["MAP_LENGTH"]
1464             if not world_db["Things"][command_tid.id][maptype]:
1465                 map = bytearray(b' ' * (length ** 2))
1466             else:
1467                 map = world_db["Things"][command_tid.id][maptype]
1468             map[val * length:(val * length) + length] = mapline.encode()
1469             if not world_db["Things"][command_tid.id][maptype]:
1470                 world_db["Things"][command_tid.id][maptype] = map
1471
1472     return nonThingMap_helper if maptype == "MAP" else ThingMap_helper
1473
1474
1475
1476 def setter_tpos(axis):
1477     """Generate setter for T_POSX or  T_POSY of selected Thing.
1478
1479     If world is active, rebuilds animate things' fovmap, player's memory map.
1480     """
1481     @test_Thing_id
1482     def helper(str_int):
1483         val = integer_test(str_int, 0, 255)
1484         if None != val:
1485             if val < world_db["MAP_LENGTH"]:
1486                 world_db["Things"][command_tid.id]["T_POS" + axis] = val
1487                 if world_db["WORLD_ACTIVE"] \
1488                    and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
1489                     build_fov_map(world_db["Things"][command_tid.id])
1490                     if 0 == command_tid.id:
1491                         update_map_memory(world_db["Things"][command_tid.id])
1492             else:
1493                 print("Ignoring: Position is outside of map.")
1494     return helper
1495
1496
1497 def command_ttid(id_string):
1498     """Set ID of ThingType to manipulate. ID unused? Create new one.
1499
1500     Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, TT_TOOL to
1501     "", others: 0.
1502     """
1503     id = id_setter(id_string, "ThingTypes", command_ttid)
1504     if None != id:
1505         world_db["ThingTypes"][id] = {
1506             "TT_NAME": "(none)",
1507             "TT_TOOLPOWER": 0,
1508             "TT_LIFEPOINTS": 0,
1509             "TT_PROLIFERATE": 0,
1510             "TT_START_NUMBER": 0,
1511             "TT_SYMBOL": "?",
1512             "TT_CORPSE_ID": id,
1513             "TT_TOOL": ""
1514         }
1515
1516
1517 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
1518
1519
1520 @test_ThingType_id
1521 def command_ttname(name):
1522     """Set TT_NAME of selected ThingType."""
1523     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
1524
1525
1526 @test_ThingType_id
1527 def command_tttool(name):
1528     """Set TT_TOOL of selected ThingType."""
1529     world_db["ThingTypes"][command_ttid.id]["TT_TOOL"] = name
1530
1531
1532 @test_ThingType_id
1533 def command_ttsymbol(char):
1534     """Set TT_SYMBOL of selected ThingType. """
1535     if 1 == len(char):
1536         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
1537     else:
1538         print("Ignoring: Argument must be single character.")
1539
1540
1541 @test_ThingType_id
1542 def command_ttcorpseid(str_int):
1543     """Set TT_CORPSE_ID of selected ThingType."""
1544     val = integer_test(str_int, 0)
1545     if None != val:
1546         if val in world_db["ThingTypes"]:
1547             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
1548         else:
1549             print("Ignoring: Corpse ID belongs to no known ThignType.")
1550
1551
1552 def command_taid(id_string):
1553     """Set ID of ThingAction to manipulate. ID unused? Create new one.
1554
1555     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
1556     """
1557     id = id_setter(id_string, "ThingActions", command_taid, True)
1558     if None != id:
1559         world_db["ThingActions"][id] = {
1560             "TA_EFFORT": 1,
1561             "TA_NAME": "wait"
1562         }
1563
1564
1565 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
1566
1567
1568 @test_ThingAction_id
1569 def command_taname(name):
1570     """Set TA_NAME of selected ThingAction.
1571
1572     The name must match a valid thing action function. If after the name
1573     setting no ThingAction with name "wait" remains, call set_world_inactive().
1574     """
1575     if name == "wait" or name == "move" or name == "use" or name == "drop" \
1576        or name == "pick_up":
1577         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
1578         if 1 == world_db["WORLD_ACTIVE"]:
1579             wait_defined = False
1580             for id in world_db["ThingActions"]:
1581                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
1582                     wait_defined = True
1583                     break
1584             if not wait_defined:
1585                 set_world_inactive()
1586     else:
1587         print("Ignoring: Invalid action name.")
1588     # In contrast to the original,naming won't map a function to a ThingAction.
1589
1590
1591 def command_ai():
1592     """Call ai() on player Thing, then turn_over()."""
1593     ai(world_db["Things"][0])
1594     turn_over()
1595
1596
1597 """Commands database.
1598
1599 Map command start tokens to ([0]) number of expected command arguments, ([1])
1600 the command's meta-ness (i.e. is it to be written to the record file, is it to
1601 be ignored in replay mode if read from server input file), and ([2]) a function
1602 to be called on it.
1603 """
1604 commands_db = {
1605     "QUIT": (0, True, command_quit),
1606     "PING": (0, True, command_ping),
1607     "THINGS_HERE": (2, True, command_thingshere),
1608     "MAKE_WORLD": (1, False, command_makeworld),
1609     "SEED_RANDOMNESS": (1, False, command_seedrandomness),
1610     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1611     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0)),
1612     "MAP_LENGTH": (1, False, command_maplength),
1613     "WORLD_ACTIVE": (1, False, command_worldactive),
1614     "MAP": (2, False, setter_map("MAP")),
1615     "TA_ID": (1, False, command_taid),
1616     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1617     "TA_NAME": (1, False, command_taname),
1618     "TT_ID": (1, False, command_ttid),
1619     "TT_NAME": (1, False, command_ttname),
1620     "TT_TOOL": (1, False, command_tttool),
1621     "TT_SYMBOL": (1, False, command_ttsymbol),
1622     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1623     "TT_TOOLPOWER": (1, False, setter("ThingType", "TT_TOOLPOWER", 0, 65535)),
1624     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1625                                          0, 255)),
1626     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1627                                         0, 65535)),
1628     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1629     "T_ID": (1, False, command_tid),
1630     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1631     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1632     "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1633     "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1634     "T_COMMAND": (1, False, command_tcommand),
1635     "T_TYPE": (1, False, command_ttype),
1636     "T_CARRIES": (1, False, command_tcarries),
1637     "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1638     "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1639     "T_MEMTHING": (3, False, command_tmemthing),
1640     "T_POSY": (1, False, setter_tpos("Y")),
1641     "T_POSX": (1, False, setter_tpos("X")),
1642     "wait": (0, False, play_commander("wait")),
1643     "move": (1, False, play_commander("move")),
1644     "pick_up": (0, False, play_commander("pick_up")),
1645     "drop": (1, False, play_commander("drop", True)),
1646     "use": (1, False, play_commander("use", True)),
1647     "ai": (0, False, command_ai)
1648 }
1649 # TODO: Unhandled cases: (Un-)killing animates (esp. player!) with T_LIFEPOINTS.
1650
1651
1652 """World state database. With sane default values. (Randomness is in rand.)"""
1653 world_db = {
1654     "TURN": 0,
1655     "MAP_LENGTH": 64,
1656     "PLAYER_TYPE": 0,
1657     "WORLD_ACTIVE": 0,
1658     "MAP": False,
1659     "ThingActions": {},
1660     "ThingTypes": {},
1661     "Things": {}
1662 }
1663
1664 """Mapping of direction names to internal direction chars."""
1665 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
1666                  "west": "s", "north-west": "w", "north-east": "e"}
1667
1668 """File IO database."""
1669 io_db = {
1670     "path_save": "save",
1671     "path_record": "record_save",
1672     "path_worldconf": "confserver/world",
1673     "path_server": "server/",
1674     "path_in": "server/in",
1675     "path_out": "server/out",
1676     "path_worldstate": "server/worldstate",
1677     "tmp_suffix": "_tmp",
1678     "kicked_by_rival": False,
1679     "worldstate_updateable": False
1680 }
1681
1682
1683 try:
1684     libpr = prep_library()
1685     rand = RandomnessIO()
1686     opts = parse_command_line_arguments()
1687     if opts.savefile:
1688         io_db["path_save"] = opts.savefile
1689         io_db["path_record"] = "record_" + opts.savefile
1690     setup_server_io()
1691     if opts.verbose:
1692         io_db["verbose"] = True
1693     if None != opts.replay:
1694         replay_game()
1695     else:
1696         play_game()
1697 except SystemExit as exit:
1698     print("ABORTING: " + exit.args[0])
1699 except:
1700     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
1701     raise
1702 finally:
1703     cleanup_server_io()