9 def strong_write(file, string):
10 """Apply write(string), flush(), and os.fsync() to file."""
16 def setup_server_io():
17 """Fill IO files DB with proper file( path)s. Write process IO test string.
19 Ensure IO files directory at server/. Remove any old input file if found.
20 Set up new input file for reading, and new output file for writing. Start
21 output file with process hash line of format PID + " " + floated UNIX time
22 (io_db["teststring"]). Raise SystemExit if file is found at path of either
23 record or save file plus io_db["tmp_suffix"].
25 def detect_atomic_leftover(path, tmp_suffix):
26 path_tmp = path + tmp_suffix
27 msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
28 "aborted previous attempt to write '" + path + "'. Aborting " \
29 "until matter is resolved by removing it from its current path."
30 if os.access(path_tmp, os.F_OK):
32 io_db["teststring"] = str(os.getpid()) + " " + str(time.time())
33 os.makedirs(io_db["path_server"], exist_ok=True)
34 io_db["file_out"] = open(io_db["path_out"], "w")
35 strong_write(io_db["file_out"], io_db["teststring"] + "\n")
36 if os.access(io_db["path_in"], os.F_OK):
37 os.remove(io_db["path_in"])
38 io_db["file_in"] = open(io_db["path_in"], "w")
39 io_db["file_in"].close()
40 io_db["file_in"] = open(io_db["path_in"], "r")
41 detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
42 detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
45 def cleanup_server_io():
46 """Close and (if io_db["kicked_by_rival"] false) remove files in io_db."""
47 def helper(file_key, path_key):
49 io_db[file_key].close()
50 if not io_db["kicked_by_rival"] \
51 and os.access(io_db[path_key], os.F_OK):
52 os.remove(io_db[path_key])
53 helper("file_out", "path_out")
54 helper("file_in", "path_in")
55 helper("file_worldstate", "path_worldstate")
56 if "file_record" in io_db:
57 io_db["file_record"].close()
60 def obey(command, prefix, replay=False, do_record=False):
61 """Call function from commands_db mapped to command's first token.
63 Tokenize command string with shlex.split(comments=True). If replay is set,
64 a non-meta command from the commands_db merely triggers obey() on the next
65 command from the records file. If not, non-meta commands set
66 io_db["worldstate_updateable"] to world_db["WORLD_EXISTS"], and, if
67 do_record is set, are recorded via record(), and save_world() is called.
68 The prefix string is inserted into the server's input message between its
69 beginning 'input ' & ':'. All activity is preceded by a server_test() call.
72 print("input " + prefix + ": " + command)
74 tokens = shlex.split(command, comments=True)
75 except ValueError as err:
76 print("Can't tokenize command string: " + str(err) + ".")
78 if len(tokens) > 0 and tokens[0] in commands_db \
79 and len(tokens) == commands_db[tokens[0]][0] + 1:
80 if commands_db[tokens[0]][1]:
81 commands_db[tokens[0]][2](*tokens[1:])
83 print("Due to replay mode, reading command as 'go on in record'.")
84 line = io_db["file_record"].readline()
86 obey(line.rstrip(), io_db["file_record"].prefix
87 + str(io_db["file_record"].line_n))
88 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
90 print("Reached end of record file.")
92 commands_db[tokens[0]][2](*tokens[1:])
96 io_db["worldstate_updateable"] = world_db["WORLD_ACTIVE"]
97 elif 0 != len(tokens):
98 print("Invalid command/argument, or bad number of tokens.")
101 def atomic_write(path, text, do_append=False):
102 """Atomic write of text to file at path, appended if do_append is set."""
103 path_tmp = path + io_db["tmp_suffix"]
107 if os.access(path, os.F_OK):
108 shutil.copyfile(path, path_tmp)
109 file = open(path_tmp, mode)
110 strong_write(file, text)
112 if os.access(path, os.F_OK):
114 os.rename(path_tmp, path)
118 """Append command string plus newline to record file. (Atomic.)"""
119 # This misses some optimizations from the original record(), namely only
120 # finishing the atomic write with expensive flush() and fsync() every 15
121 # seconds unless explicitely forced. Implement as needed.
122 atomic_write(io_db["path_record"], command + "\n", do_append=True)
126 """Save all commands needed to reconstruct current world state."""
127 # TODO: Misses same optimizations as record() from the original record().
130 string = string.replace("\u005C", '\u005C\u005C')
131 return '"' + string.replace('"', '\u005C"') + '"'
136 if world_db["Things"][id][key]:
137 map = world_db["Things"][id][key]
138 length = world_db["MAP_LENGTH"]
139 for i in range(length):
140 line = map[i * length:(i * length) + length].decode()
141 string = string + key + " " + str(i) + " " + quote(line) \
148 for memthing in world_db["Things"][id]["T_MEMTHING"]:
149 string = string + "T_MEMTHING " + str(memthing[0]) + " " + \
150 str(memthing[1]) + " " + str(memthing[2]) + "\n"
153 def helper(category, id_string, special_keys={}):
155 for id in world_db[category]:
156 string = string + id_string + " " + str(id) + "\n"
157 for key in world_db[category][id]:
158 if not key in special_keys:
159 x = world_db[category][id][key]
160 argument = quote(x) if str == type(x) else str(x)
161 string = string + key + " " + argument + "\n"
162 elif special_keys[key]:
163 string = string + special_keys[key](id)
168 if dict != type(world_db[key]) and key != "MAP":
169 string = string + key + " " + str(world_db[key]) + "\n"
170 string = string + helper("ThingActions", "TA_ID")
171 string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
172 for id in world_db["ThingTypes"]:
173 string = string + "TT_ID " + str(id) + "\n" + "TT_CORPSE_ID " + \
174 str(world_db["ThingTypes"][id]["TT_CORPSE_ID"]) + "\n"
175 string = string + helper("Things", "T_ID",
176 {"T_CARRIES": False, "carried": False,
177 "T_MEMMAP": mapsetter("T_MEMMAP"),
178 "T_MEMTHING": memthing, "fovmap": False,
179 "T_MEMDEPTHMAP": mapsetter("T_MEMDEPTHMAP")})
180 for id in world_db["Things"]:
181 if [] != world_db["Things"][id]["T_CARRIES"]:
182 string = string + "T_ID " + str(id) + "\n"
183 for carried_id in world_db["Things"][id]["T_CARRIES"]:
184 string = string + "T_CARRIES " + str(carried_id) + "\n"
185 string = string + "WORLD_ACTIVE " + str(world_db["WORLD_ACTIVE"])
186 atomic_write(io_db["path_save"], string)
189 def obey_lines_in_file(path, name, do_record=False):
190 """Call obey() on each line of path's file, use name in input prefix."""
191 file = open(path, "r")
193 for line in file.readlines():
194 obey(line.rstrip(), name + "file line " + str(line_n),
200 def parse_command_line_arguments():
201 """Return settings values read from command line arguments."""
202 parser = argparse.ArgumentParser()
203 parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
205 opts, unknown = parser.parse_known_args()
210 """Ensure valid server out file belonging to current process.
212 This is done by comparing io_db["teststring"] to what's found at the start
213 of the current file at io_db["path_out"]. On failure, set
214 io_db["kicked_by_rival"] and raise SystemExit.
216 if not os.access(io_db["path_out"], os.F_OK):
217 raise SystemExit("Server output file has disappeared.")
218 file = open(io_db["path_out"], "r")
219 test = file.readline().rstrip("\n")
221 if test != io_db["teststring"]:
222 io_db["kicked_by_rival"] = True
223 msg = "Server test string in server output file does not match. This" \
224 " indicates that the current server process has been " \
225 "superseded by another one."
226 raise SystemExit(msg)
230 """Return next newline-delimited command from server in file.
232 Keep building return string until a newline is encountered. Pause between
233 unsuccessful reads, and after too much waiting, run server_test().
240 add = io_db["file_in"].readline()
242 command = command + add
243 if len(command) > 0 and "\n" == command[-1]:
244 command = command[:-1]
247 time.sleep(wait_on_fail)
248 if now + max_wait < time.time():
254 def try_worldstate_update():
255 """Write worldstate file if io_db["worldstate_updateable"] is set."""
256 if io_db["worldstate_updateable"]:
258 def draw_visible_Things(map, run):
259 for id in world_db["Things"]:
260 type = world_db["Things"][id]["T_TYPE"]
261 consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
262 alive = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]
263 if (0 == run and not consumable and not alive) \
264 or (1 == run and consumable and not alive) \
265 or (2 == run and alive):
266 y = world_db["Things"][id]["T_POSY"]
267 x = world_db["Things"][id]["T_POSX"]
268 fovflag = world_db["Things"][0]["fovmap"][(y * length) + x]
269 if 'v' == chr(fovflag):
270 c = world_db["ThingTypes"][type]["TT_SYMBOL"]
271 map[(y * length) + x] = ord(c)
273 def write_map(string, map):
274 for i in range(length):
275 line = map[i * length:(i * length) + length].decode()
276 string = string + line + "\n"
280 if [] == world_db["Things"][0]["T_CARRIES"]:
281 inventory = "(none)\n"
283 for id in world_db["Things"][0]["T_CARRIES"]:
284 type_id = world_db["Things"][id]["T_TYPE"]
285 name = world_db["ThingTypes"][type_id]["TT_NAME"]
286 inventory = inventory + name + "\n"
287 string = str(world_db["TURN"]) + "\n" + \
288 str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
289 str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
290 inventory + "%\n" + \
291 str(world_db["Things"][0]["T_POSY"]) + "\n" + \
292 str(world_db["Things"][0]["T_POSX"]) + "\n" + \
293 str(world_db["MAP_LENGTH"]) + "\n"
294 length = world_db["MAP_LENGTH"]
295 fov = bytearray(b' ' * (length ** 2))
296 for pos in range(length ** 2):
297 if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
298 fov[pos] = world_db["MAP"][pos]
300 draw_visible_Things(fov, i)
301 string = write_map(string, fov)
302 mem = world_db["Things"][0]["T_MEMMAP"][:]
304 for memthing in world_db["Things"][0]["T_MEMTHING"]:
305 type = world_db["Things"][memthing[0]]["T_TYPE"]
306 consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
307 if (i == 0 and not consumable) or (i == 1 and consumable):
308 c = world_db["ThingTypes"][type]["TT_SYMBOL"]
309 mem[(memthing[1] * length) + memthing[2]] = ord(c)
310 string = write_map(string, mem)
311 atomic_write(io_db["path_worldstate"], string)
312 strong_write(io_db["file_out"], "WORLD_UPDATED\n")
313 io_db["worldstate_updateable"] = False
317 """Replay game from record file.
319 Use opts.replay as breakpoint turn to which to replay automatically before
320 switching to manual input by non-meta commands in server input file
321 triggering further reads of record file. Ensure opts.replay is at least 1.
322 Run try_worldstate_update() before each interactive obey()/read_command().
326 print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
327 " (if so late a turn is to be found).")
328 if not os.access(io_db["path_record"], os.F_OK):
329 raise SystemExit("No record file found to replay.")
330 io_db["file_record"] = open(io_db["path_record"], "r")
331 io_db["file_record"].prefix = "record file line "
332 io_db["file_record"].line_n = 1
333 while world_db["TURN"] < opts.replay:
334 line = io_db["file_record"].readline()
337 obey(line.rstrip(), io_db["file_record"].prefix
338 + str(io_db["file_record"].line_n))
339 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
341 try_worldstate_update()
342 obey(read_command(), "in file", replay=True)
346 """Play game by server input file commands. Before, load save file found.
348 If no save file is found, a new world is generated from the commands in the
349 world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
350 command and all that follow via the server input file. Run
351 try_worldstate_update() before each interactive obey()/read_command().
353 if os.access(io_db["path_save"], os.F_OK):
354 obey_lines_in_file(io_db["path_save"], "save")
356 if not os.access(io_db["path_worldconf"], os.F_OK):
357 msg = "No world config file from which to start a new world."
358 raise SystemExit(msg)
359 obey_lines_in_file(io_db["path_worldconf"], "world config ",
361 obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
363 try_worldstate_update()
364 obey(read_command(), "in file", do_record=True)
369 world_db["MAP"] = bytearray(b'.' * (world_db["MAP_LENGTH"] ** 2))
372 def update_map_memory(t):
373 """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
374 if not t["T_MEMMAP"]:
375 t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
376 if not t["T_MEMDEPTHMAP"]:
377 t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
378 for pos in range(world_db["MAP_LENGTH"] ** 2):
379 if "v" == chr(t["fovmap"][pos]):
380 t["T_MEMDEPTHMAP"][pos] = ord("0")
381 if " " == chr(t["T_MEMMAP"][pos]):
382 t["T_MEMMAP"][pos] = world_db["MAP"][pos]
384 # TODO: Aging of MEMDEPTHMAP.
385 for memthing in t["T_MEMTHING"]:
386 y = world_db["Things"][memthing[0]]["T_POSY"]
387 x = world_db["Things"][memthing[1]]["T_POSY"]
388 if "v" == chr(t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]):
389 t["T_MEMTHING"].remove(memthing)
390 for id in world_db["Things"]:
391 type = world_db["Things"][id]["T_TYPE"]
392 if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
393 y = world_db["Things"][id]["T_POSY"]
394 x = world_db["Things"][id]["T_POSY"]
395 if "v" == chr(t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]):
396 t["T_MEMTHING"].append((type, y, x))
399 def set_world_inactive():
400 """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
402 if os.access(io_db["path_worldstate"], os.F_OK):
403 os.remove(io_db["path_worldstate"])
404 world_db["WORLD_ACTIVE"] = 0
407 def integer_test(val_string, min, max):
408 """Return val_string if possible integer >= min and <= max, else None."""
410 val = int(val_string)
411 if val < min or val > max:
415 print("Ignoring: Please use integer >= " + str(min) + " and <= " +
420 def setter(category, key, min, max):
421 """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
424 val = integer_test(val_string, min, max)
428 if category == "Thing":
429 id_store = command_tid
430 decorator = test_Thing_id
431 elif category == "ThingType":
432 id_store = command_ttid
433 decorator = test_ThingType_id
434 elif category == "ThingAction":
435 id_store = command_taid
436 decorator = test_ThingAction_id
440 val = integer_test(val_string, min, max)
442 world_db[category + "s"][id_store.id][key] = val
446 def build_fov_map(t):
447 """Build Thing's FOV map."""
448 t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
449 # DUMMY so far. Just builds an all-visible map.
452 def actor_wait(Thing):
453 """Do nothing (but loudly, if by player)."""
454 if Thing == world_db["Things"][0]:
455 strong_write(io_db["file_out"], "LOG You wait.\n")
458 def actor_move(Thing):
462 def actor_pick_up(Thing):
463 """Pick up (topmost?) thing from ground into inventory."""
464 # Topmostness is actually not defined so far.
465 ids = [id for id in world_db["Things"] if world_db["Things"][id] != Thing
466 if not world_db["Things"][id]["carried"]
467 if world_db["Things"][id]["T_POSY"] == Thing["T_POSY"]
468 if world_db["Things"][id]["T_POSX"] == Thing["T_POSX"]]
470 world_db["Things"][ids[0]]["carried"] = True
471 Thing["T_CARRIES"].append(ids[0])
472 strong_write(io_db["file_out"], "LOG You pick up an object.\n")
474 err = "You try to pick up an object, but there is none."
475 strong_write(io_db["file_out"], "LOG " + err + "\n")
478 def actor_drop(Thing):
482 def actor_use(Thing):
487 """Run game world and its inhabitants until new player input expected."""
490 while world_db["Things"][0]["T_LIFEPOINTS"]:
491 for id in [id for id in world_db["Things"]
492 if world_db["Things"][id]["T_LIFEPOINTS"]]:
493 Thing = world_db["Things"][id]
494 if Thing["T_LIFEPOINTS"]:
495 if not Thing["T_COMMAND"]:
496 update_map_memory(Thing)
501 Thing["T_COMMAND"] = 1
503 Thing["T_PROGRESS"] += 1
504 taid = [a for a in world_db["ThingActions"]
505 if a == Thing["T_COMMAND"]][0]
506 ThingAction = world_db["ThingActions"][taid]
507 if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
508 eval("actor_" + ThingAction["TA_NAME"])(Thing)
509 Thing["T_COMMAND"] = 0
510 Thing["T_PROGRESS"] = 0
512 # DUMMY: thingproliferation
515 world_db["TURN"] += 1
519 """Return Thing of type T_TYPE, with fovmap if alive and world active."""
521 "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
533 "T_MEMDEPTHMAP": False,
536 if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
541 def id_setter(id, category, id_store=False, start_at_1=False):
542 """Set ID of object of category to manipulate ID unused? Create new one.
544 The ID is stored as id_store.id (if id_store is set). If the integer of the
545 input is valid (if start_at_1, >= 0 and <= 255, else >= -32768 and <=
546 32767), but <0 or (if start_at_1) <1, calculate new ID: lowest unused ID
547 >=0 or (if start_at_1) >= 1, and <= 255. None is always returned when no
548 new object is created, otherwise the new object's ID.
550 min = 0 if start_at_1 else -32768
551 max = 255 if start_at_1 else 32767
553 id = integer_test(id, min, max)
555 if id in world_db[category]:
560 if (start_at_1 and 0 == id) \
561 or ((not start_at_1) and (id < 0 or id > 255)):
565 if id not in world_db[category]:
569 "No unused ID available to add to ID list.")
577 """Send PONG line to server output file."""
578 strong_write(io_db["file_out"], "PONG\n")
582 """Abort server process."""
583 raise SystemExit("received QUIT command")
586 def command_thingshere(str_y, str_x):
587 """Write to out file list of Things known to player at coordinate y, x."""
588 def write_thing_if_here():
589 if y == world_db["Things"][id]["T_POSY"] \
590 and x == world_db["Things"][id]["T_POSX"] \
591 and not world_db["Things"][id]["carried"]:
592 type = world_db["Things"][id]["T_TYPE"]
593 name = world_db["ThingTypes"][type]["TT_NAME"]
594 strong_write(io_db["file_out"], name + "\n")
595 if world_db["WORLD_ACTIVE"]:
596 y = integer_test(str_y, 0, 255)
597 x = integer_test(str_x, 0, 255)
598 length = world_db["MAP_LENGTH"]
599 if None != y and None != x and y < length and x < length:
600 pos = (y * world_db["MAP_LENGTH"]) + x
601 strong_write(io_db["file_out"], "THINGS_HERE START\n")
602 if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
603 for id in world_db["Things"]:
604 write_thing_if_here()
606 for id in world_db["Things"]["T_MEMTHING"]:
607 write_thing_if_here()
608 strong_write(io_db["file_out"], "THINGS_HERE END\n")
610 print("Ignoring: Invalid map coordinates.")
612 print("Ignoring: Command only works on existing worlds.")
615 def play_commander(action, args=False):
616 """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
618 T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
622 id = [x for x in world_db["ThingActions"]
623 if world_db["ThingActions"][x]["TA_NAME"] == action][0]
624 world_db["Things"][0]["T_COMMAND"] = id
626 # TODO: call turn_over()
628 def set_command_and_argument_int(str_arg):
629 val = integer_test(str_arg, 0, 255)
631 world_db["Things"][0]["T_ARGUMENT"] = val
634 print("Ignoring: Argument must be integer >= 0 <=255.")
636 def set_command_and_argument_movestring(str_arg):
637 dirs = {"east": "d", "south-east": "c", "south-west": "x",
638 "west": "s", "north-west": "w", "north-east": "e"}
640 world_db["Things"][0]["T_ARGUMENT"] = dirs[str_arg]
643 print("Ignoring: Argument must be valid direction string.")
646 return set_command_and_argument_movestring
648 return set_command_and_argument_int
653 def command_seedmap(seed_string):
654 """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
655 setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
659 def command_makeworld(seed_string):
660 """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
662 Make seed world_db["SEED_RANDOMNESS"] and world_db["SEED_MAP"]. Do more
663 only with a "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType
664 of TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
665 and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
666 according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
667 of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
668 other. Init player's memory map. Write "NEW_WORLD" line to out file.
670 setter(None, "SEED_RANDOMNESS", 0, 4294967295)(seed_string)
671 setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
672 player_will_be_generated = False
673 playertype = world_db["PLAYER_TYPE"]
674 for ThingType in world_db["ThingTypes"]:
675 if playertype == ThingType:
676 if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
677 player_will_be_generated = True
679 if not player_will_be_generated:
680 print("Ignoring beyond SEED_MAP: " +
681 "No player type with start number >0 defined.")
684 for ThingAction in world_db["ThingActions"]:
685 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
688 print("Ignoring beyond SEED_MAP: " +
689 "No thing action with name 'wait' defined.")
691 world_db["Things"] = {}
693 world_db["WORLD_ACTIVE"] = 1
695 for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
696 id = id_setter(-1, "Things")
697 world_db["Things"][id] = new_Thing(playertype)
699 update_map_memory(world_db["Things"][0])
700 for type in world_db["ThingTypes"]:
701 for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
702 if type != playertype:
703 id = id_setter(-1, "Things")
704 world_db["Things"][id] = new_Thing(type)
706 strong_write(io_db["file_out"], "NEW_WORLD\n")
709 def command_maplength(maplength_string):
710 """Redefine map length. Invalidate map, therefore lose all things on it."""
712 world_db["Things"] = {}
713 setter(None, "MAP_LENGTH", 1, 256)(maplength_string)
716 def command_worldactive(worldactive_string):
717 """Toggle world_db["WORLD_ACTIVE"] if possible.
719 An active world can always be set inactive. An inactive world can only be
720 set active with a "wait" ThingAction, and a player Thing (of ID 0). On
721 activation, rebuild all Things' FOVs, and the player's map memory.
723 # In original version, map existence was also tested (unnecessarily?).
724 val = integer_test(worldactive_string, 0, 1)
726 if 0 != world_db["WORLD_ACTIVE"]:
730 print("World already active.")
731 elif 0 == world_db["WORLD_ACTIVE"]:
733 for ThingAction in world_db["ThingActions"]:
734 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
737 player_exists = False
738 for Thing in world_db["Things"]:
742 if wait_exists and player_exists:
743 for id in world_db["Things"]:
744 if world_db["Things"][id]["T_LIFEPOINTS"]:
745 build_fov_map(world_db["Things"][id])
747 update_map_memory(world_db["Things"][id])
748 world_db["WORLD_ACTIVE"] = 1
751 def test_for_id_maker(object, category):
752 """Return decorator testing for object having "id" attribute."""
755 if hasattr(object, "id"):
758 print("Ignoring: No " + category +
759 " defined to manipulate yet.")
764 def command_tid(id_string):
765 """Set ID of Thing to manipulate. ID unused? Create new one.
767 Default new Thing's type to the first available ThingType, others: zero.
769 id = id_setter(id_string, "Things", command_tid)
771 if world_db["ThingTypes"] == {}:
772 print("Ignoring: No ThingType to settle new Thing in.")
774 type = list(world_db["ThingTypes"].keys())[0]
775 world_db["Things"][id] = new_Thing(type)
778 test_Thing_id = test_for_id_maker(command_tid, "Thing")
782 def command_tcommand(str_int):
783 """Set T_COMMAND of selected Thing."""
784 val = integer_test(str_int, 0, 255)
786 if 0 == val or val in world_db["ThingActions"]:
787 world_db["Things"][command_tid.id]["T_COMMAND"] = val
789 print("Ignoring: ThingAction ID belongs to no known ThingAction.")
793 def command_ttype(str_int):
794 """Set T_TYPE of selected Thing."""
795 val = integer_test(str_int, 0, 255)
797 if val in world_db["ThingTypes"]:
798 world_db["Things"][command_tid.id]["T_TYPE"] = val
800 print("Ignoring: ThingType ID belongs to no known ThingType.")
804 def command_tcarries(str_int):
805 """Append int(str_int) to T_CARRIES of selected Thing.
807 The ID int(str_int) must not be of the selected Thing, and must belong to a
808 Thing with unset "carried" flag. Its "carried" flag will be set on owning.
810 val = integer_test(str_int, 0, 255)
812 if val == command_tid.id:
813 print("Ignoring: Thing cannot carry itself.")
814 elif val in world_db["Things"] \
815 and not world_db["Things"][val]["carried"]:
816 world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
817 world_db["Things"][val]["carried"] = True
819 print("Ignoring: Thing not available for carrying.")
820 # Note that the whole carrying structure is different from the C version:
821 # Carried-ness is marked by a "carried" flag, not by Things containing
826 def command_tmemthing(str_t, str_y, str_x):
827 """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
829 The type must fit to an existing ThingType, and the position into the map.
831 type = integer_test(str_t, 0, 255)
832 posy = integer_test(str_y, 0, 255)
833 posx = integer_test(str_x, 0, 255)
834 if None != type and None != posy and None != posx:
835 if type not in world_db["ThingTypes"] \
836 or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
837 print("Ignoring: Illegal value for thing type or position.")
839 memthing = (type, posy, posx)
840 world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
843 def setter_map(maptype):
844 """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
846 If Thing has no map of maptype yet, initialize it with ' ' bytes first.
849 def helper(str_int, mapline):
850 val = integer_test(str_int, 0, 255)
852 if val >= world_db["MAP_LENGTH"]:
853 print("Illegal value for map line number.")
854 elif len(mapline) != world_db["MAP_LENGTH"]:
855 print("Map line length is unequal map width.")
857 length = world_db["MAP_LENGTH"]
859 if not world_db["Things"][command_tid.id][maptype]:
860 map = bytearray(b' ' * (length ** 2))
862 map = world_db["Things"][command_tid.id][maptype]
863 map[val * length:(val * length) + length] = mapline.encode()
864 world_db["Things"][command_tid.id][maptype] = map
868 def setter_tpos(axis):
869 """Generate setter for T_POSX or T_POSY of selected Thing.
871 If world is active, rebuilds animate things' fovmap, player's memory map.
875 val = integer_test(str_int, 0, 255)
877 if val < world_db["MAP_LENGTH"]:
878 world_db["Things"][command_tid.id]["T_POS" + axis] = val
879 if world_db["WORLD_ACTIVE"] \
880 and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
881 build_fov_map(world_db["Things"][command_tid.id])
882 if 0 == command_tid.id:
883 update_map_memory(world_db["Things"][command_tid.id])
885 print("Ignoring: Position is outside of map.")
889 def command_ttid(id_string):
890 """Set ID of ThingType to manipulate. ID unused? Create new one.
892 Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
894 id = id_setter(id_string, "ThingTypes", command_ttid)
896 world_db["ThingTypes"][id] = {
901 "TT_START_NUMBER": 0,
907 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
911 def command_ttname(name):
912 """Set TT_NAME of selected ThingType."""
913 world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
917 def command_ttsymbol(char):
918 """Set TT_SYMBOL of selected ThingType. """
920 world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
922 print("Ignoring: Argument must be single character.")
926 def command_ttcorpseid(str_int):
927 """Set TT_CORPSE_ID of selected ThingType."""
928 val = integer_test(str_int, 0, 255)
930 if val in world_db["ThingTypes"]:
931 world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
933 print("Ignoring: Corpse ID belongs to no known ThignType.")
936 def command_taid(id_string):
937 """Set ID of ThingAction to manipulate. ID unused? Create new one.
939 Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
941 id = id_setter(id_string, "ThingActions", command_taid, True)
943 world_db["ThingActions"][id] = {
949 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
953 def command_taname(name):
954 """Set TA_NAME of selected ThingAction.
956 The name must match a valid thing action function. If after the name
957 setting no ThingAction with name "wait" remains, call set_world_inactive().
959 if name == "wait" or name == "move" or name == "use" or name == "drop" \
960 or name == "pick_up":
961 world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
962 if 1 == world_db["WORLD_ACTIVE"]:
964 for id in world_db["ThingActions"]:
965 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
971 print("Ignoring: Invalid action name.")
972 # In contrast to the original,naming won't map a function to a ThingAction.
975 """Commands database.
977 Map command start tokens to ([0]) number of expected command arguments, ([1])
978 the command's meta-ness (i.e. is it to be written to the record file, is it to
979 be ignored in replay mode if read from server input file), and ([2]) a function
983 "QUIT": (0, True, command_quit),
984 "PING": (0, True, command_ping),
985 "THINGS_HERE": (2, True, command_thingshere),
986 "MAKE_WORLD": (1, False, command_makeworld),
987 "SEED_MAP": (1, False, command_seedmap),
988 "SEED_RANDOMNESS": (1, False, setter(None, "SEED_RANDOMNESS",
990 "TURN": (1, False, setter(None, "TURN", 0, 65535)),
991 "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0, 255)),
992 "MAP_LENGTH": (1, False, command_maplength),
993 "WORLD_ACTIVE": (1, False, command_worldactive),
994 "TA_ID": (1, False, command_taid),
995 "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
996 "TA_NAME": (1, False, command_taname),
997 "TT_ID": (1, False, command_ttid),
998 "TT_NAME": (1, False, command_ttname),
999 "TT_SYMBOL": (1, False, command_ttsymbol),
1000 "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1001 "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1003 "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1005 "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1007 "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1008 "T_ID": (1, False, command_tid),
1009 "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1010 "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1011 "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1012 "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1013 "T_COMMAND": (1, False, command_tcommand),
1014 "T_TYPE": (1, False, command_ttype),
1015 "T_CARRIES": (1, False, command_tcarries),
1016 "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1017 "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1018 "T_MEMTHING": (3, False, command_tmemthing),
1019 "T_POSY": (1, False, setter_tpos("Y")),
1020 "T_POSX": (1, False, setter_tpos("X")),
1021 "wait": (0, False, play_commander("wait")),
1022 "move": (1, False, play_commander("move")),
1023 "pick_up": (0, False, play_commander("pick_up")),
1024 "drop": (1, False, play_commander("drop", True)),
1025 "use": (1, False, play_commander("use", True)),
1029 """World state database. With sane default values."""
1033 "SEED_RANDOMNESS": 0,
1043 """File IO database."""
1045 "path_save": "save",
1046 "path_record": "record",
1047 "path_worldconf": "confserver/world",
1048 "path_server": "server/",
1049 "path_in": "server/in",
1050 "path_out": "server/out",
1051 "path_worldstate": "server/worldstate",
1052 "tmp_suffix": "_tmp",
1053 "kicked_by_rival": False,
1054 "worldstate_updateable": False
1059 opts = parse_command_line_arguments()
1061 if None != opts.replay:
1065 except SystemExit as exit:
1066 print("ABORTING: " + exit.args[0])
1068 print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")