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.
453 """Make t do nothing (but loudly, if player avatar)."""
454 if t == 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(t):
463 """Make t 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] != t
466 if not world_db["Things"][id]["carried"]
467 if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
468 if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
470 world_db["Things"][ids[0]]["carried"] = True
471 t["T_CARRIES"].append(ids[0])
472 if t == world_db["Things"][0]:
473 strong_write(io_db["file_out"], "LOG You pick up an object.\n")
474 elif t == world_db["Things"][0]:
475 err = "You try to pick up an object, but there is none."
476 strong_write(io_db["file_out"], "LOG " + err + "\n")
480 """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
481 # TODO: Handle case where T_ARGUMENT matches nothing.
482 if len(t["T_CARRIES"]):
483 id = t["T_CARRIES"][t["T_ARGUMENT"]]
484 t["T_CARRIES"].remove(id)
485 world_db["Things"][id]["carried"] = False
486 if t == world_db["Things"][0]:
487 print("You drop an object.")
488 elif t == world_db["Things"][0]:
489 print("You try to drop an object, but you own none.")
492 def actor_use(Thing):
497 """Run game world and its inhabitants until new player input expected."""
500 while world_db["Things"][0]["T_LIFEPOINTS"]:
501 for id in [id for id in world_db["Things"]
502 if world_db["Things"][id]["T_LIFEPOINTS"]]:
503 Thing = world_db["Things"][id]
504 if Thing["T_LIFEPOINTS"]:
505 if not Thing["T_COMMAND"]:
506 update_map_memory(Thing)
511 Thing["T_COMMAND"] = 1
513 Thing["T_PROGRESS"] += 1
514 taid = [a for a in world_db["ThingActions"]
515 if a == Thing["T_COMMAND"]][0]
516 ThingAction = world_db["ThingActions"][taid]
517 if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
518 eval("actor_" + ThingAction["TA_NAME"])(Thing)
519 Thing["T_COMMAND"] = 0
520 Thing["T_PROGRESS"] = 0
522 # DUMMY: thingproliferation
525 world_db["TURN"] += 1
529 """Return Thing of type T_TYPE, with fovmap if alive and world active."""
531 "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
543 "T_MEMDEPTHMAP": False,
546 if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
551 def id_setter(id, category, id_store=False, start_at_1=False):
552 """Set ID of object of category to manipulate ID unused? Create new one.
554 The ID is stored as id_store.id (if id_store is set). If the integer of the
555 input is valid (if start_at_1, >= 0 and <= 255, else >= -32768 and <=
556 32767), but <0 or (if start_at_1) <1, calculate new ID: lowest unused ID
557 >=0 or (if start_at_1) >= 1, and <= 255. None is always returned when no
558 new object is created, otherwise the new object's ID.
560 min = 0 if start_at_1 else -32768
561 max = 255 if start_at_1 else 32767
563 id = integer_test(id, min, max)
565 if id in world_db[category]:
570 if (start_at_1 and 0 == id) \
571 or ((not start_at_1) and (id < 0 or id > 255)):
575 if id not in world_db[category]:
579 "No unused ID available to add to ID list.")
587 """Send PONG line to server output file."""
588 strong_write(io_db["file_out"], "PONG\n")
592 """Abort server process."""
593 raise SystemExit("received QUIT command")
596 def command_thingshere(str_y, str_x):
597 """Write to out file list of Things known to player at coordinate y, x."""
598 def write_thing_if_here():
599 if y == world_db["Things"][id]["T_POSY"] \
600 and x == world_db["Things"][id]["T_POSX"] \
601 and not world_db["Things"][id]["carried"]:
602 type = world_db["Things"][id]["T_TYPE"]
603 name = world_db["ThingTypes"][type]["TT_NAME"]
604 strong_write(io_db["file_out"], name + "\n")
605 if world_db["WORLD_ACTIVE"]:
606 y = integer_test(str_y, 0, 255)
607 x = integer_test(str_x, 0, 255)
608 length = world_db["MAP_LENGTH"]
609 if None != y and None != x and y < length and x < length:
610 pos = (y * world_db["MAP_LENGTH"]) + x
611 strong_write(io_db["file_out"], "THINGS_HERE START\n")
612 if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
613 for id in world_db["Things"]:
614 write_thing_if_here()
616 for id in world_db["Things"]["T_MEMTHING"]:
617 write_thing_if_here()
618 strong_write(io_db["file_out"], "THINGS_HERE END\n")
620 print("Ignoring: Invalid map coordinates.")
622 print("Ignoring: Command only works on existing worlds.")
625 def play_commander(action, args=False):
626 """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
628 T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
632 id = [x for x in world_db["ThingActions"]
633 if world_db["ThingActions"][x]["TA_NAME"] == action][0]
634 world_db["Things"][0]["T_COMMAND"] = id
636 # TODO: call turn_over()
638 def set_command_and_argument_int(str_arg):
639 val = integer_test(str_arg, 0, 255)
641 world_db["Things"][0]["T_ARGUMENT"] = val
644 print("Ignoring: Argument must be integer >= 0 <=255.")
646 def set_command_and_argument_movestring(str_arg):
647 dirs = {"east": "d", "south-east": "c", "south-west": "x",
648 "west": "s", "north-west": "w", "north-east": "e"}
650 world_db["Things"][0]["T_ARGUMENT"] = dirs[str_arg]
653 print("Ignoring: Argument must be valid direction string.")
656 return set_command_and_argument_movestring
658 return set_command_and_argument_int
663 def command_seedmap(seed_string):
664 """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
665 setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
669 def command_makeworld(seed_string):
670 """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
672 Make seed world_db["SEED_RANDOMNESS"] and world_db["SEED_MAP"]. Do more
673 only with a "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType
674 of TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
675 and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
676 according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
677 of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
678 other. Init player's memory map. Write "NEW_WORLD" line to out file.
680 setter(None, "SEED_RANDOMNESS", 0, 4294967295)(seed_string)
681 setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
682 player_will_be_generated = False
683 playertype = world_db["PLAYER_TYPE"]
684 for ThingType in world_db["ThingTypes"]:
685 if playertype == ThingType:
686 if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
687 player_will_be_generated = True
689 if not player_will_be_generated:
690 print("Ignoring beyond SEED_MAP: " +
691 "No player type with start number >0 defined.")
694 for ThingAction in world_db["ThingActions"]:
695 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
698 print("Ignoring beyond SEED_MAP: " +
699 "No thing action with name 'wait' defined.")
701 world_db["Things"] = {}
703 world_db["WORLD_ACTIVE"] = 1
705 for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
706 id = id_setter(-1, "Things")
707 world_db["Things"][id] = new_Thing(playertype)
709 update_map_memory(world_db["Things"][0])
710 for type in world_db["ThingTypes"]:
711 for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
712 if type != playertype:
713 id = id_setter(-1, "Things")
714 world_db["Things"][id] = new_Thing(type)
716 strong_write(io_db["file_out"], "NEW_WORLD\n")
719 def command_maplength(maplength_string):
720 """Redefine map length. Invalidate map, therefore lose all things on it."""
722 world_db["Things"] = {}
723 setter(None, "MAP_LENGTH", 1, 256)(maplength_string)
726 def command_worldactive(worldactive_string):
727 """Toggle world_db["WORLD_ACTIVE"] if possible.
729 An active world can always be set inactive. An inactive world can only be
730 set active with a "wait" ThingAction, and a player Thing (of ID 0). On
731 activation, rebuild all Things' FOVs, and the player's map memory.
733 # In original version, map existence was also tested (unnecessarily?).
734 val = integer_test(worldactive_string, 0, 1)
736 if 0 != world_db["WORLD_ACTIVE"]:
740 print("World already active.")
741 elif 0 == world_db["WORLD_ACTIVE"]:
743 for ThingAction in world_db["ThingActions"]:
744 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
747 player_exists = False
748 for Thing in world_db["Things"]:
752 if wait_exists and player_exists:
753 for id in world_db["Things"]:
754 if world_db["Things"][id]["T_LIFEPOINTS"]:
755 build_fov_map(world_db["Things"][id])
757 update_map_memory(world_db["Things"][id])
758 world_db["WORLD_ACTIVE"] = 1
761 def test_for_id_maker(object, category):
762 """Return decorator testing for object having "id" attribute."""
765 if hasattr(object, "id"):
768 print("Ignoring: No " + category +
769 " defined to manipulate yet.")
774 def command_tid(id_string):
775 """Set ID of Thing to manipulate. ID unused? Create new one.
777 Default new Thing's type to the first available ThingType, others: zero.
779 id = id_setter(id_string, "Things", command_tid)
781 if world_db["ThingTypes"] == {}:
782 print("Ignoring: No ThingType to settle new Thing in.")
784 type = list(world_db["ThingTypes"].keys())[0]
785 world_db["Things"][id] = new_Thing(type)
788 test_Thing_id = test_for_id_maker(command_tid, "Thing")
792 def command_tcommand(str_int):
793 """Set T_COMMAND of selected Thing."""
794 val = integer_test(str_int, 0, 255)
796 if 0 == val or val in world_db["ThingActions"]:
797 world_db["Things"][command_tid.id]["T_COMMAND"] = val
799 print("Ignoring: ThingAction ID belongs to no known ThingAction.")
803 def command_ttype(str_int):
804 """Set T_TYPE of selected Thing."""
805 val = integer_test(str_int, 0, 255)
807 if val in world_db["ThingTypes"]:
808 world_db["Things"][command_tid.id]["T_TYPE"] = val
810 print("Ignoring: ThingType ID belongs to no known ThingType.")
814 def command_tcarries(str_int):
815 """Append int(str_int) to T_CARRIES of selected Thing.
817 The ID int(str_int) must not be of the selected Thing, and must belong to a
818 Thing with unset "carried" flag. Its "carried" flag will be set on owning.
820 val = integer_test(str_int, 0, 255)
822 if val == command_tid.id:
823 print("Ignoring: Thing cannot carry itself.")
824 elif val in world_db["Things"] \
825 and not world_db["Things"][val]["carried"]:
826 world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
827 world_db["Things"][val]["carried"] = True
829 print("Ignoring: Thing not available for carrying.")
830 # Note that the whole carrying structure is different from the C version:
831 # Carried-ness is marked by a "carried" flag, not by Things containing
836 def command_tmemthing(str_t, str_y, str_x):
837 """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
839 The type must fit to an existing ThingType, and the position into the map.
841 type = integer_test(str_t, 0, 255)
842 posy = integer_test(str_y, 0, 255)
843 posx = integer_test(str_x, 0, 255)
844 if None != type and None != posy and None != posx:
845 if type not in world_db["ThingTypes"] \
846 or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
847 print("Ignoring: Illegal value for thing type or position.")
849 memthing = (type, posy, posx)
850 world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
853 def setter_map(maptype):
854 """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
856 If Thing has no map of maptype yet, initialize it with ' ' bytes first.
859 def helper(str_int, mapline):
860 val = integer_test(str_int, 0, 255)
862 if val >= world_db["MAP_LENGTH"]:
863 print("Illegal value for map line number.")
864 elif len(mapline) != world_db["MAP_LENGTH"]:
865 print("Map line length is unequal map width.")
867 length = world_db["MAP_LENGTH"]
869 if not world_db["Things"][command_tid.id][maptype]:
870 map = bytearray(b' ' * (length ** 2))
872 map = world_db["Things"][command_tid.id][maptype]
873 map[val * length:(val * length) + length] = mapline.encode()
874 world_db["Things"][command_tid.id][maptype] = map
878 def setter_tpos(axis):
879 """Generate setter for T_POSX or T_POSY of selected Thing.
881 If world is active, rebuilds animate things' fovmap, player's memory map.
885 val = integer_test(str_int, 0, 255)
887 if val < world_db["MAP_LENGTH"]:
888 world_db["Things"][command_tid.id]["T_POS" + axis] = val
889 if world_db["WORLD_ACTIVE"] \
890 and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
891 build_fov_map(world_db["Things"][command_tid.id])
892 if 0 == command_tid.id:
893 update_map_memory(world_db["Things"][command_tid.id])
895 print("Ignoring: Position is outside of map.")
899 def command_ttid(id_string):
900 """Set ID of ThingType to manipulate. ID unused? Create new one.
902 Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
904 id = id_setter(id_string, "ThingTypes", command_ttid)
906 world_db["ThingTypes"][id] = {
911 "TT_START_NUMBER": 0,
917 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
921 def command_ttname(name):
922 """Set TT_NAME of selected ThingType."""
923 world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
927 def command_ttsymbol(char):
928 """Set TT_SYMBOL of selected ThingType. """
930 world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
932 print("Ignoring: Argument must be single character.")
936 def command_ttcorpseid(str_int):
937 """Set TT_CORPSE_ID of selected ThingType."""
938 val = integer_test(str_int, 0, 255)
940 if val in world_db["ThingTypes"]:
941 world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
943 print("Ignoring: Corpse ID belongs to no known ThignType.")
946 def command_taid(id_string):
947 """Set ID of ThingAction to manipulate. ID unused? Create new one.
949 Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
951 id = id_setter(id_string, "ThingActions", command_taid, True)
953 world_db["ThingActions"][id] = {
959 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
963 def command_taname(name):
964 """Set TA_NAME of selected ThingAction.
966 The name must match a valid thing action function. If after the name
967 setting no ThingAction with name "wait" remains, call set_world_inactive().
969 if name == "wait" or name == "move" or name == "use" or name == "drop" \
970 or name == "pick_up":
971 world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
972 if 1 == world_db["WORLD_ACTIVE"]:
974 for id in world_db["ThingActions"]:
975 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
981 print("Ignoring: Invalid action name.")
982 # In contrast to the original,naming won't map a function to a ThingAction.
985 """Commands database.
987 Map command start tokens to ([0]) number of expected command arguments, ([1])
988 the command's meta-ness (i.e. is it to be written to the record file, is it to
989 be ignored in replay mode if read from server input file), and ([2]) a function
993 "QUIT": (0, True, command_quit),
994 "PING": (0, True, command_ping),
995 "THINGS_HERE": (2, True, command_thingshere),
996 "MAKE_WORLD": (1, False, command_makeworld),
997 "SEED_MAP": (1, False, command_seedmap),
998 "SEED_RANDOMNESS": (1, False, setter(None, "SEED_RANDOMNESS",
1000 "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1001 "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0, 255)),
1002 "MAP_LENGTH": (1, False, command_maplength),
1003 "WORLD_ACTIVE": (1, False, command_worldactive),
1004 "TA_ID": (1, False, command_taid),
1005 "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1006 "TA_NAME": (1, False, command_taname),
1007 "TT_ID": (1, False, command_ttid),
1008 "TT_NAME": (1, False, command_ttname),
1009 "TT_SYMBOL": (1, False, command_ttsymbol),
1010 "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1011 "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1013 "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1015 "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1017 "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1018 "T_ID": (1, False, command_tid),
1019 "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1020 "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1021 "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1022 "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1023 "T_COMMAND": (1, False, command_tcommand),
1024 "T_TYPE": (1, False, command_ttype),
1025 "T_CARRIES": (1, False, command_tcarries),
1026 "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1027 "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1028 "T_MEMTHING": (3, False, command_tmemthing),
1029 "T_POSY": (1, False, setter_tpos("Y")),
1030 "T_POSX": (1, False, setter_tpos("X")),
1031 "wait": (0, False, play_commander("wait")),
1032 "move": (1, False, play_commander("move")),
1033 "pick_up": (0, False, play_commander("pick_up")),
1034 "drop": (1, False, play_commander("drop", True)),
1035 "use": (1, False, play_commander("use", True)),
1039 """World state database. With sane default values."""
1043 "SEED_RANDOMNESS": 0,
1053 """File IO database."""
1055 "path_save": "save",
1056 "path_record": "record",
1057 "path_worldconf": "confserver/world",
1058 "path_server": "server/",
1059 "path_in": "server/in",
1060 "path_out": "server/out",
1061 "path_worldstate": "server/worldstate",
1062 "tmp_suffix": "_tmp",
1063 "kicked_by_rival": False,
1064 "worldstate_updateable": False
1069 opts = parse_command_line_arguments()
1071 if None != opts.replay:
1075 except SystemExit as exit:
1076 print("ABORTING: " + exit.args[0])
1078 print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")