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Server/py: Fix and extend command_makeworld().
[plomrogue] / plomrogue-server.py
1 import argparse
2 import errno
3 import os
4 import shlex
5 import shutil
6 import time
7
8
9 def setup_server_io():
10     """Fill IO files DB with proper file( path)s. Write process IO test string.
11
12     Ensure IO files directory at server/. Remove any old input file if found.
13     Set up new input file for reading, and new output file for writing. Start
14     output file with process hash line of format PID + " " + floated UNIX time
15     (io_db["teststring"]). Raise SystemExit if file is found at path of either
16     record or save file plus io_db["tmp_suffix"].
17     """
18     def detect_atomic_leftover(path, tmp_suffix):
19         path_tmp = path + tmp_suffix
20         msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
21               "aborted previous attempt to write '" + path + "'. Aborting " \
22              "until matter is resolved by removing it from its current path."
23         if os.access(path_tmp, os.F_OK):
24             raise SystemExit(msg)
25     io_db["teststring"] = str(os.getpid()) + " " + str(time.time())
26     os.makedirs(io_db["path_server"], exist_ok=True)
27     io_db["file_out"] = open(io_db["path_out"], "w")
28     io_db["file_out"].write(io_db["teststring"] + "\n")
29     io_db["file_out"].flush()
30     if os.access(io_db["path_in"], os.F_OK):
31         os.remove(io_db["path_in"])
32     io_db["file_in"] = open(io_db["path_in"], "w")
33     io_db["file_in"].close()
34     io_db["file_in"] = open(io_db["path_in"], "r")
35     detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
36     detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
37
38
39 def cleanup_server_io():
40     """Close and (if io_db["kicked_by_rival"] false) remove files in io_db."""
41     def helper(file_key, path_key):
42         if file_key in io_db:
43             io_db[file_key].close()
44             if not io_db["kicked_by_rival"] \
45                and os.access(io_db[path_key], os.F_OK):
46                 os.remove(io_db[path_key])
47     helper("file_out", "path_out")
48     helper("file_in", "path_in")
49     helper("file_worldstate", "path_worldstate")
50     if "file_record" in io_db:
51         io_db["file_record"].close()
52
53
54 def obey(command, prefix, replay=False, do_record=False):
55     """Call function from commands_db mapped to command's first token.
56
57     The command string is tokenized by shlex.split(comments=True). If replay is
58     set, a non-meta command from the commands_db merely triggers obey() on the
59     next command from the records file. If not, and do do_record is set,
60     non-meta commands are recorded via record(), and save_world() is called.
61     The prefix string is inserted into the server's input message between its
62     beginning 'input ' & ':'. All activity is preceded by a server_test() call.
63     """
64     server_test()
65     print("input " + prefix + ": " + command)
66     try:
67         tokens = shlex.split(command, comments=True)
68     except ValueError as err:
69         print("Can't tokenize command string: " + str(err) + ".")
70         return
71     if len(tokens) > 0 and tokens[0] in commands_db \
72        and len(tokens) == commands_db[tokens[0]][0] + 1:
73         if commands_db[tokens[0]][1]:
74             commands_db[tokens[0]][2]()
75         elif replay:
76             print("Due to replay mode, reading command as 'go on in record'.")
77             line = io_db["file_record"].readline()
78             if len(line) > 0:
79                 obey(line.rstrip(), io_db["file_record"].prefix
80                      + str(io_db["file_record"].line_n))
81                 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
82             else:
83                 print("Reached end of record file.")
84         else:
85             commands_db[tokens[0]][2](*tokens[1:])
86             if do_record:
87                 record(command)
88                 save_world()
89     elif 0 != len(tokens):
90         print("Invalid command/argument, or bad number of tokens.")
91
92
93 def atomic_write(path, text, do_append=False):
94     """Atomic write of text to file at path, appended if do_append is set."""
95     path_tmp = path + io_db["tmp_suffix"]
96     mode = "w"
97     if do_append:
98         mode = "a"
99         if os.access(path, os.F_OK):
100             shutil.copyfile(path, path_tmp)
101     file = open(path_tmp, mode)
102     file.write(text)
103     file.flush()
104     os.fsync(file.fileno())
105     file.close()
106     if os.access(path, os.F_OK):
107         os.remove(path)
108     os.rename(path_tmp, path)
109
110
111 def record(command):
112     """Append command string plus newline to record file. (Atomic.)"""
113     # This misses some optimizations from the original record(), namely only
114     # finishing the atomic write with expensive flush() and fsync() every 15
115     # seconds unless explicitely forced. Implement as needed.
116     atomic_write(io_db["path_record"], command + "\n", do_append=True)
117
118
119 def save_world():
120     """Save all commands needed to reconstruct current world state."""
121     # TODO: Misses same optimizations as record() from the original record().
122
123     def quote(string):
124         string = string.replace("\u005C", '\u005C\u005C')
125         return '"' + string.replace('"', '\u005C"') + '"'
126
127     def mapsetter(key):
128         def helper(id):
129             string = ""
130             if world_db["Things"][id][key]:
131                 rmap = world_db["Things"][id][key]
132                 length = world_db["MAP_LENGTH"]
133                 for i in range(world_db["MAP_LENGTH"]):
134                     line = rmap[i * length:(i * length) + length].decode()
135                     string = string + key + " " + str(i) + quote(line) + "\n"
136             return string
137         return helper
138
139     def memthing(id):
140         string = ""
141         for memthing in world_db["Things"][id]["T_MEMTHING"]:
142             string = string + "T_MEMTHING " + str(memthing[0]) + " " + \
143                      str(memthing[1]) + " " + str(memthing[2]) + "\n"
144         return string
145
146     def helper(category, id_string, special_keys={}):
147         string = ""
148         for id in world_db[category]:
149             string = string + id_string + " " + str(id) + "\n"
150             for key in world_db[category][id]:
151                 if not key in special_keys:
152                     x = world_db[category][id][key]
153                     argument = quote(x) if str == type(x) else str(x)
154                     string = string + key + " " + argument + "\n"
155                 elif special_keys[key]:
156                     string = string + special_keys[key](id)
157         return string
158
159     string = ""
160     for key in world_db:
161         if dict != type(world_db[key]):
162             string = string + key + " " + str(world_db[key]) + "\n"
163     string = string + helper("ThingActions", "TA_ID")
164     string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
165     for id in world_db["ThingTypes"]:
166         string = string + "TT_ID " + str(id) + "\n" + "TT_CORPSE_ID " + \
167                  str(world_db["ThingTypes"][id]["TT_CORPSE_ID"]) + "\n"
168     string = string + helper("Things", "T_ID",
169                              {"T_CARRIES": False, "carried": False,
170                               "T_MEMMAP": mapsetter("T_MEMMAP"),
171                               "T_MEMTHING": memthing,
172                               "T_MEMDEPTHMAP": mapsetter("T_MEMDEPTHMAP")})
173     for id in world_db["Things"]:
174         if [] != world_db["Things"][id]["T_CARRIES"]:
175             string = string + "T_ID " + str(id) + "\n"
176             for carried_id in world_db["Things"][id]["T_CARRIES"]:
177                 string = string + "T_CARRIES " + str(carried_id) + "\n"
178     atomic_write(io_db["path_save"], string)
179
180
181 def obey_lines_in_file(path, name, do_record=False):
182     """Call obey() on each line of path's file, use name in input prefix."""
183     file = open(path, "r")
184     line_n = 1
185     for line in file.readlines():
186         obey(line.rstrip(), name + "file line " + str(line_n),
187              do_record=do_record)
188         line_n = line_n + 1
189     file.close()
190
191
192 def parse_command_line_arguments():
193     """Return settings values read from command line arguments."""
194     parser = argparse.ArgumentParser()
195     parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
196                         action='store')
197     opts, unknown = parser.parse_known_args()
198     return opts
199
200
201 def server_test():
202     """Ensure valid server out file belonging to current process.
203
204     This is done by comparing io_db["teststring"] to what's found at the start
205     of the current file at io_db["path_out"]. On failure, set
206     io_db["kicked_by_rival"] and raise SystemExit.
207     """
208     if not os.access(io_db["path_out"], os.F_OK):
209         raise SystemExit("Server output file has disappeared.")
210     file = open(io_db["path_out"], "r")
211     test = file.readline().rstrip("\n")
212     file.close()
213     if test != io_db["teststring"]:
214         io_db["kicked_by_rival"] = True
215         msg = "Server test string in server output file does not match. This" \
216               " indicates that the current server process has been " \
217               "superseded by another one."
218         raise SystemExit(msg)
219
220
221 def read_command():
222     """Return next newline-delimited command from server in file.
223
224     Keep building return string until a newline is encountered. Pause between
225     unsuccessful reads, and after too much waiting, run server_test().
226     """
227     wait_on_fail = 1
228     max_wait = 5
229     now = time.time()
230     command = ""
231     while True:
232         add = io_db["file_in"].readline()
233         if len(add) > 0:
234             command = command + add
235             if len(command) > 0 and "\n" == command[-1]:
236                 command = command[:-1]
237                 break
238         else:
239             time.sleep(wait_on_fail)
240             if now + max_wait < time.time():
241                 server_test()
242                 now = time.time()
243     return command
244
245
246 def replay_game():
247     """Replay game from record file.
248
249     Use opts.replay as breakpoint turn to which to replay automatically before
250     switching to manual input by non-meta commands in server input file
251     triggering further reads of record file. Ensure opts.replay is at least 1.
252     """
253     if opts.replay < 1:
254         opts.replay = 1
255     print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
256           " (if so late a turn is to be found).")
257     if not os.access(io_db["path_record"], os.F_OK):
258         raise SystemExit("No record file found to replay.")
259     io_db["file_record"] = open(io_db["path_record"], "r")
260     io_db["file_record"].prefix = "record file line "
261     io_db["file_record"].line_n = 1
262     while world_db["TURN"] < opts.replay:
263         line = io_db["file_record"].readline()
264         if "" == line:
265             break
266         obey(line.rstrip(), io_db["file_record"].prefix
267              + str(io_db["file_record"].line_n))
268         io_db["file_record"].line_n = io_db["file_record"].line_n + 1
269     while True:
270         obey(read_command(), "in file", replay=True)
271
272
273 def play_game():
274     """Play game by server input file commands. Before, load save file found.
275
276     If no save file is found, a new world is generated from the commands in the
277     world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
278     command and all that follow via the server input file.
279     """
280     if os.access(io_db["path_save"], os.F_OK):
281         obey_lines_in_file(io_db["path_save"], "save")
282     else:
283         if not os.access(io_db["path_worldconf"], os.F_OK):
284             msg = "No world config file from which to start a new world."
285             raise SystemExit(msg)
286         obey_lines_in_file(io_db["path_worldconf"], "world config ",
287                            do_record=True)
288         obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
289     while True:
290         obey(read_command(), "in file", do_record=True)
291
292
293 def remake_map():
294     # DUMMY map creator.
295     world_db["MAP"] = bytearray(b'.' * (world_db["MAP_LENGTH"] ** 2))
296
297
298 def set_world_inactive():
299     """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
300     server_test()
301     if os.access(io_db["path_worldstate"], os.F_OK):
302         os.remove(io_db["path_worldstate"])
303     world_db["WORLD_ACTIVE"] = 0
304
305
306 def integer_test(val_string, min, max):
307     """Return val_string if possible integer >= min and <= max, else None."""
308     try:
309         val = int(val_string)
310         if val < min or val > max:
311             raise ValueError
312         return val
313     except ValueError:
314         print("Ignoring: Please use integer >= " + str(min) + " and <= " +
315               str(max) + ".")
316         return None
317
318
319 def setter(category, key, min, max):
320     """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
321     if category is None:
322         def f(val_string):
323             val = integer_test(val_string, min, max)
324             if None != val:
325                 world_db[key] = val
326     else:
327         if category == "Thing":
328             id_store = command_tid
329             decorator = test_Thing_id
330         elif category == "ThingType":
331             id_store = command_ttid
332             decorator = test_ThingType_id
333         elif category == "ThingAction":
334             id_store = command_taid
335             decorator = test_ThingAction_id
336
337         @decorator
338         def f(val_string):
339             val = integer_test(val_string, min, max)
340             if None != val:
341                 world_db[category + "s"][id_store.id][key] = val
342     return f
343
344
345 def command_ping():
346     """Send PONG line to server output file."""
347     io_db["file_out"].write("PONG\n")
348     io_db["file_out"].flush()
349
350
351 def command_quit():
352     """Abort server process."""
353     raise SystemExit("received QUIT command")
354
355
356 def command_seedmap(seed_string):
357     """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
358     setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
359     remake_map()
360
361
362 def command_makeworld(seed_string):
363     # DUMMY.
364     setter(None, "SEED_RANDOMNESS", 0, 4294967295)(seed_string)
365     player_will_be_generated = False
366     for ThingType in world_db["ThingTypes"]:
367         if 0 == ThingType:
368             if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
369                 player_will_be_generated = True
370             break
371     if not player_will_be_generated:
372         print("Ignoring beyond SEED_MAP: " +
373               "No player type with start number >0 defined.")
374         return
375     wait_action = False
376     for ThingAction in world_db["ThingActions"]:
377         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
378             wait_action = True
379     if not wait_action:
380         print("Ignoring beyond SEED_MAP: " +
381               "No thing action with name 'wait' defined.")
382         return
383     setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
384     world_db["Things"] = {}
385     remake_map()
386     world_db["WORLD_ACTIVE"] = 1
387     # TODO: Generate things (player first, with updated memory), set TURN 1,
388     atomic_write(io_db["path_out"], "NEW_WORLD\n", do_append=True)
389
390
391 def command_maplength(maplength_string):
392     # DUMMY.
393     set_world_inactive()
394     # TODO: remove map (is this necessary? no memory management trouble …)
395     world_db["Things"] = {}
396     setter(None, "MAP_LENGTH", 1, 256)(maplength_string)
397
398
399 def command_worldactive(worldactive_string):
400     # DUMMY.
401     val = integer_test(worldactive_string, 0, 1)
402     if val:
403         if 0 != world_db["WORLD_ACTIVE"]:
404             if 0 == val:
405                 set_world_inactive()
406             else:
407                 print("World already active.")
408         elif 0 == world_db["WORLD_ACTIVE"]:
409             wait_exists = False
410             for ThingAction in world_db["ThingActions"]:
411                 if "wait" == ThingAction["TA_NAME"]:
412                     wait_exists = True
413                     break
414             player_exists = False
415             for Thing in world_db["Things"]:
416                 if 0 == ThingAction["T_ID"]:
417                     player_exists = True
418                     break
419             map_exists = "MAP" in world_db
420             if wait_exists and player_exists and map_exists:
421                 # TODO: rebuild all things' FOVs, map memories
422                 world_db["WORLD_ACTIVE"] = 1
423
424
425 def id_setter(id_string, category, id_store, start_at_1=False):
426     """Set ID of object of category to manipulate ID unused? Create new one.
427
428     The ID is stored as id_store.id. If the integer of the input is valid (if
429     start_at_1, >= 0 and <= 255, else >= -32768 and <= 32767), but <0 or (if
430     start_at_1) <1, calculate new ID: lowest unused ID >=0 or (if start_at_1)
431     >= 1, and <= 255. None is always returned when no new object is created,
432     otherwise the new object's ID.
433     """
434     min = 0 if start_at_1 else -32768
435     max = 255 if start_at_1 else 32767
436     id = integer_test(id_string, min, max)
437     if None != id:
438         if id in world_db[category]:
439             id_store.id = id
440             return None
441         else:
442             if (start_at_1 and 0 == id) \
443                or ((not start_at_1) and (id < 0 or id > 255)):
444                 id = -1
445                 while 1:
446                     id = id + 1
447                     if id not in world_db[category]:
448                         break
449                 if id > 255:
450                     print("Ignoring: "
451                           "No unused ID available to add to ID list.")
452                     return None
453             id_store.id = id
454     return id
455
456
457 def test_for_id_maker(object, category):
458     """Return decorator testing for object having "id" attribute."""
459     def decorator(f):
460         def helper(*args):
461             if hasattr(object, "id"):
462                 f(*args)
463             else:
464                 print("Ignoring: No " + category +
465                       " defined to manipulate yet.")
466         return helper
467     return decorator
468
469
470 def command_tid(id_string):
471     """Set ID of Thing to manipulate. ID unused? Create new one.
472
473     Default new Thing's type to the first available ThingType, others: zero.
474     """
475     id = id_setter(id_string, "Things", command_tid)
476     if None != id:
477         if world_db["ThingTypes"] == {}:
478             print("Ignoring: No ThingType to settle new Thing in.")
479             return
480         world_db["Things"][id] = {
481             "T_LIFEPOINTS": 0,
482             "T_ARGUMENT": 0,
483             "T_PROGRESS": 0,
484             "T_SATIATION": 0,
485             "T_COMMAND": 0,
486             "T_TYPE": list(world_db["ThingTypes"].keys())[0],
487             "T_POSY": 0,
488             "T_POSX": 0,
489             "T_CARRIES": [],
490             "carried": False,
491             "T_MEMTHING": [],
492             "T_MEMMAP": False,
493             "T_MEMDEPTHMAP": False
494         }
495
496
497 test_Thing_id = test_for_id_maker(command_tid, "Thing")
498
499
500 @test_Thing_id
501 def command_tcommand(str_int):
502     """Set T_COMMAND of selected Thing."""
503     val = integer_test(str_int, 0, 255)
504     if None != val:
505         if 0 == val or val in world_db["ThingActions"]:
506             world_db["Things"][command_tid.id]["T_COMMAND"] = val
507         else:
508             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
509
510
511 @test_Thing_id
512 def command_ttype(str_int):
513     """Set T_TYPE of selected Thing."""
514     val = integer_test(str_int, 0, 255)
515     if None != val:
516         if val in world_db["ThingTypes"]:
517             world_db["Things"][command_tid.id]["T_TYPE"] = val
518         else:
519             print("Ignoring: ThingType ID belongs to no known ThingType.")
520
521
522 @test_Thing_id
523 def command_tcarries(str_int):
524     """Append int(str_int) to T_CARRIES of selected Thing.
525
526     The ID int(str_int) must not be of the selected Thing, and must belong to a
527     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
528     """
529     val = integer_test(str_int, 0, 255)
530     if None != val:
531         if val == command_tid.id:
532             print("Ignoring: Thing cannot carry itself.")
533         elif val in world_db["Things"] \
534              and not world_db["Things"][val]["carried"]:
535             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
536             world_db["Things"][val]["carried"] = True
537         else:
538             print("Ignoring: Thing not available for carrying.")
539     # Note that the whole carrying structure is different from the C version:
540     # Carried-ness is marked by a "carried" flag, not by Things containing
541     # Things internally.
542
543
544 @test_Thing_id
545 def command_tmemthing(str_t, str_y, str_x):
546     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
547
548     The type must fit to an existing ThingType, and the position into the map.
549     """
550     type = integer_test(str_t, 0, 255)
551     posy = integer_test(str_y, 0, 255)
552     posx = integer_test(str_x, 0, 255)
553     if None != type and None != posy and None != posx:
554         if type not in world_db["ThingTypes"] \
555            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
556             print("Ignoring: Illegal value for thing type or position.")
557         else:
558             memthing = (type, posy, posx)
559             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
560
561
562 def setter_map(maptype):
563     """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
564
565     If Thing has no map of maptype yet, initialize it with ' ' bytes first.
566     """
567     @test_Thing_id
568     def helper(str_int, mapline):
569         val = integer_test(str_int, 0, 255)
570         if None != val:
571             if val >= world_db["MAP_LENGTH"]:
572                 print("Illegal value for map line number.")
573             elif len(mapline) != world_db["MAP_LENGTH"]:
574                 print("Map line length is unequal map width.")
575             else:
576                 length = world_db["MAP_LENGTH"]
577                 rmap = None
578                 if not world_db["Things"][command_tid.id][maptype]:
579                     rmap = bytearray(b' ' * (length ** 2))
580                 else:
581                     rmap = world_db["Things"][command_tid.id][maptype]
582                 rmap[val * length:(val * length) + length] = mapline.encode()
583                 world_db["Things"][command_tid.id][maptype] = rmap
584     return helper
585
586
587 def setter_tpos(axis):
588     """Generate setter for T_POSX or  T_POSY of selected Thing."""
589     @test_Thing_id
590     def helper(str_int):
591         val = integer_test(str_int, 0, 255)
592         if None != val:
593             if val < world_db["MAP_LENGTH"]:
594                 world_db["Things"][command_tid.id]["T_POS" + axis] = val
595                 # TODO: Delete Thing's FOV, and rebuild it if world is active.
596             else:
597                 print("Ignoring: Position is outside of map.")
598     return helper
599
600
601 def command_ttid(id_string):
602     """Set ID of ThingType to manipulate. ID unused? Create new one.
603
604     Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
605     """
606     id = id_setter(id_string, "ThingTypes", command_ttid)
607     if None != id:
608         world_db["ThingTypes"][id] = {
609             "TT_NAME": "(none)",
610             "TT_CONSUMABLE": 0,
611             "TT_LIFEPOINTS": 0,
612             "TT_PROLIFERATE": 0,
613             "TT_START_NUMBER": 0,
614             "TT_SYMBOL": "?",
615             "TT_CORPSE_ID": id
616         }
617
618
619 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
620
621
622 @test_ThingType_id
623 def command_ttname(name):
624     """Set TT_NAME of selected ThingType."""
625     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
626
627
628 @test_ThingType_id
629 def command_ttsymbol(char):
630     """Set TT_SYMBOL of selected ThingType. """
631     if 1 == len(char):
632         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
633     else:
634         print("Ignoring: Argument must be single character.")
635
636
637 @test_ThingType_id
638 def command_ttcorpseid(str_int):
639     """Set TT_CORPSE_ID of selected ThingType."""
640     val = integer_test(str_int, 0, 255)
641     if None != val:
642         if val in world_db["ThingTypes"]:
643             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
644         else:
645             print("Ignoring: Corpse ID belongs to no known ThignType.")
646
647
648 def command_taid(id_string):
649     """Set ID of ThingAction to manipulate. ID unused? Create new one.
650
651     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
652     """
653     id = id_setter(id_string, "ThingActions", command_taid, True)
654     if None != id:
655         world_db["ThingActions"][id] = {
656             "TA_EFFORT": 1,
657             "TA_NAME": "wait"
658         }
659
660
661 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
662
663
664 @test_ThingAction_id
665 def command_taname(name):
666     """Set TA_NAME of selected ThingAction.
667
668     The name must match a valid thing action function. If after the name
669     setting no ThingAction with name "wait" remains, call set_world_inactive().
670     """
671     if name == "wait" or name == "move" or name == "use" or name == "drop" \
672        or name == "pick_up":
673         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
674         if 1 == world_db["WORLD_ACTIVE"]:
675             wait_defined = False
676             for id in world_db["ThingActions"]:
677                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
678                     wait_defined = True
679                     break
680             if not wait_defined:
681                 set_world_inactive()
682     else:
683         print("Ignoring: Invalid action name.")
684     # In contrast to the original,naming won't map a function to a ThingAction.
685
686
687 """Commands database.
688
689 Map command start tokens to ([0]) number of expected command arguments, ([1])
690 the command's meta-ness (i.e. is it to be written to the record file, is it to
691 be ignored in replay mode if read from server input file), and ([2]) a function
692 to be called on it.
693 """
694 commands_db = {
695     "QUIT": (0, True, command_quit),
696     "PING": (0, True, command_ping),
697     "MAKE_WORLD": (1, False, command_makeworld),
698     "SEED_MAP": (1, False, command_seedmap),
699     "SEED_RANDOMNESS": (1, False, setter(None, "SEED_RANDOMNESS",
700                                          0, 4294967295)),
701     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
702     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0, 255)),
703     "MAP_LENGTH": (1, False, command_maplength),
704     "WORLD_ACTIVE": (1, False, command_worldactive),
705     "TA_ID": (1, False, command_taid),
706     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
707     "TA_NAME": (1, False, command_taname),
708     "TT_ID": (1, False, command_ttid),
709     "TT_NAME": (1, False, command_ttname),
710     "TT_SYMBOL": (1, False, command_ttsymbol),
711     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
712     "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
713                                        0, 65535)),
714     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
715                                          0, 255)),
716     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
717                                         0, 255)),
718     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
719     "T_ID": (1, False, command_tid),
720     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
721     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
722     "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
723     "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
724     "T_COMMAND": (1, False, command_tcommand),
725     "T_TYPE": (1, False, command_ttype),
726     "T_CARRIES": (1, False, command_tcarries),
727     "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
728     "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
729     "T_MEMTHING": (3, False, command_tmemthing),
730     "T_POSY": (1, False, setter_tpos("Y")),
731     "T_POSX": (1, False, setter_tpos("X")),
732 }
733
734
735 """World state database. With sane default values."""
736 world_db = {
737     "TURN": 1,
738     "SEED_MAP": 0,
739     "SEED_RANDOMNESS": 0,
740     "PLAYER_TYPE": 0,
741     "MAP_LENGTH": 64,
742     "WORLD_ACTIVE": 0,
743     "ThingActions": {},
744     "ThingTypes": {},
745     "Things": {}
746 }
747
748
749 """File IO database."""
750 io_db = {
751     "path_save": "save",
752     "path_record": "record",
753     "path_worldconf": "confserver/world",
754     "path_server": "server/",
755     "path_in": "server/in",
756     "path_out": "server/out",
757     "path_worldstate": "server/worldstate",
758     "tmp_suffix": "_tmp",
759     "kicked_by_rival": False
760 }
761
762
763 try:
764     opts = parse_command_line_arguments()
765     setup_server_io()
766     # print("DUMMY: Run game.")
767     if None != opts.replay:
768         replay_game()
769     else:
770         play_game()
771 except SystemExit as exit:
772     print("ABORTING: " + exit.args[0])
773 except:
774     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
775     raise
776 finally:
777     cleanup_server_io()
778     # print("DUMMY: (Clean up C heap.)")