11 """"Interface to libplomrogue's pseudo-randomness generator."""
13 def set_seed(self, seed):
14 libpr.seed_rrand(1, seed)
17 return libpr.seed_rrand(0, 0)
22 seed = property(get_seed, set_seed)
26 """Prepare ctypes library at ./libplomrogue.so"""
27 libpath = ("./libplomrogue.so")
28 if not os.access(libpath, os.F_OK):
29 raise SystemExit("No library " + libpath + ", run ./compile.sh first?")
30 libpr = ctypes.cdll.LoadLibrary(libpath)
31 libpr.seed_rrand.argtypes = [ctypes.c_uint8, ctypes.c_uint32]
32 libpr.seed_rrand.restype = ctypes.c_uint32
33 libpr.rrand.argtypes = []
34 libpr.rrand.restype = ctypes.c_uint16
35 libpr.set_maplength.argtypes = [ctypes.c_uint16]
36 libpr.mv_yx_in_dir_legal_wrap.argtypes = [ctypes.c_char, ctypes.c_uint8,
38 libpr.mv_yx_in_dir_legal_wrap.restype = ctypes.c_uint8
39 libpr.result_y.restype = ctypes.c_uint8
40 libpr.result_x.restype = ctypes.c_uint8
41 libpr.set_maplength(world_db["MAP_LENGTH"])
42 libpr.build_fov_map.argtypes = [ctypes.c_uint8, ctypes.c_uint8,
43 ctypes.c_char_p, ctypes.c_char_p]
44 libpr.build_fov_map.restype = ctypes.c_uint8
48 def strong_write(file, string):
49 """Apply write(string), flush(), and os.fsync() to file."""
55 def setup_server_io():
56 """Fill IO files DB with proper file( path)s. Write process IO test string.
58 Ensure IO files directory at server/. Remove any old input file if found.
59 Set up new input file for reading, and new output file for writing. Start
60 output file with process hash line of format PID + " " + floated UNIX time
61 (io_db["teststring"]). Raise SystemExit if file is found at path of either
62 record or save file plus io_db["tmp_suffix"].
64 def detect_atomic_leftover(path, tmp_suffix):
65 path_tmp = path + tmp_suffix
66 msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
67 "aborted previous attempt to write '" + path + "'. Aborting " \
68 "until matter is resolved by removing it from its current path."
69 if os.access(path_tmp, os.F_OK):
71 io_db["teststring"] = str(os.getpid()) + " " + str(time.time())
72 os.makedirs(io_db["path_server"], exist_ok=True)
73 io_db["file_out"] = open(io_db["path_out"], "w")
74 strong_write(io_db["file_out"], io_db["teststring"] + "\n")
75 if os.access(io_db["path_in"], os.F_OK):
76 os.remove(io_db["path_in"])
77 io_db["file_in"] = open(io_db["path_in"], "w")
78 io_db["file_in"].close()
79 io_db["file_in"] = open(io_db["path_in"], "r")
80 detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
81 detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
84 def cleanup_server_io():
85 """Close and (if io_db["kicked_by_rival"] false) remove files in io_db."""
86 def helper(file_key, path_key):
88 io_db[file_key].close()
89 if not io_db["kicked_by_rival"] \
90 and os.access(io_db[path_key], os.F_OK):
91 os.remove(io_db[path_key])
92 helper("file_out", "path_out")
93 helper("file_in", "path_in")
94 helper("file_worldstate", "path_worldstate")
95 if "file_record" in io_db:
96 io_db["file_record"].close()
99 def obey(command, prefix, replay=False, do_record=False):
100 """Call function from commands_db mapped to command's first token.
102 Tokenize command string with shlex.split(comments=True). If replay is set,
103 a non-meta command from the commands_db merely triggers obey() on the next
104 command from the records file. If not, non-meta commands set
105 io_db["worldstate_updateable"] to world_db["WORLD_EXISTS"], and, if
106 do_record is set, are recorded via record(), and save_world() is called.
107 The prefix string is inserted into the server's input message between its
108 beginning 'input ' & ':'. All activity is preceded by a server_test() call.
111 print("input " + prefix + ": " + command)
113 tokens = shlex.split(command, comments=True)
114 except ValueError as err:
115 print("Can't tokenize command string: " + str(err) + ".")
117 if len(tokens) > 0 and tokens[0] in commands_db \
118 and len(tokens) == commands_db[tokens[0]][0] + 1:
119 if commands_db[tokens[0]][1]:
120 commands_db[tokens[0]][2](*tokens[1:])
122 print("Due to replay mode, reading command as 'go on in record'.")
123 line = io_db["file_record"].readline()
125 obey(line.rstrip(), io_db["file_record"].prefix
126 + str(io_db["file_record"].line_n))
127 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
129 print("Reached end of record file.")
131 commands_db[tokens[0]][2](*tokens[1:])
135 io_db["worldstate_updateable"] = world_db["WORLD_ACTIVE"]
136 elif 0 != len(tokens):
137 print("Invalid command/argument, or bad number of tokens.")
140 def atomic_write(path, text, do_append=False):
141 """Atomic write of text to file at path, appended if do_append is set."""
142 path_tmp = path + io_db["tmp_suffix"]
146 if os.access(path, os.F_OK):
147 shutil.copyfile(path, path_tmp)
148 file = open(path_tmp, mode)
149 strong_write(file, text)
151 if os.access(path, os.F_OK):
153 os.rename(path_tmp, path)
157 """Append command string plus newline to record file. (Atomic.)"""
158 # This misses some optimizations from the original record(), namely only
159 # finishing the atomic write with expensive flush() and fsync() every 15
160 # seconds unless explicitely forced. Implement as needed.
161 atomic_write(io_db["path_record"], command + "\n", do_append=True)
165 """Save all commands needed to reconstruct current world state."""
166 # TODO: Misses same optimizations as record() from the original record().
169 string = string.replace("\u005C", '\u005C\u005C')
170 return '"' + string.replace('"', '\u005C"') + '"'
175 if world_db["Things"][id][key]:
176 map = world_db["Things"][id][key]
177 length = world_db["MAP_LENGTH"]
178 for i in range(length):
179 line = map[i * length:(i * length) + length].decode()
180 string = string + key + " " + str(i) + " " + quote(line) \
187 for memthing in world_db["Things"][id]["T_MEMTHING"]:
188 string = string + "T_MEMTHING " + str(memthing[0]) + " " + \
189 str(memthing[1]) + " " + str(memthing[2]) + "\n"
192 def helper(category, id_string, special_keys={}):
194 for id in world_db[category]:
195 string = string + id_string + " " + str(id) + "\n"
196 for key in world_db[category][id]:
197 if not key in special_keys:
198 x = world_db[category][id][key]
199 argument = quote(x) if str == type(x) else str(x)
200 string = string + key + " " + argument + "\n"
201 elif special_keys[key]:
202 string = string + special_keys[key](id)
207 if dict != type(world_db[key]) and key != "MAP":
208 string = string + key + " " + str(world_db[key]) + "\n"
209 string = string + helper("ThingActions", "TA_ID")
210 string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
211 for id in world_db["ThingTypes"]:
212 string = string + "TT_ID " + str(id) + "\n" + "TT_CORPSE_ID " + \
213 str(world_db["ThingTypes"][id]["TT_CORPSE_ID"]) + "\n"
214 string = string + helper("Things", "T_ID",
215 {"T_CARRIES": False, "carried": False,
216 "T_MEMMAP": mapsetter("T_MEMMAP"),
217 "T_MEMTHING": memthing, "fovmap": False,
218 "T_MEMDEPTHMAP": mapsetter("T_MEMDEPTHMAP")})
219 for id in world_db["Things"]:
220 if [] != world_db["Things"][id]["T_CARRIES"]:
221 string = string + "T_ID " + str(id) + "\n"
222 for carried_id in world_db["Things"][id]["T_CARRIES"]:
223 string = string + "T_CARRIES " + str(carried_id) + "\n"
224 string = string + "SEED_RANDOMNESS " + str(rand.seed) + "\n" + \
225 "WORLD_ACTIVE " + str(world_db["WORLD_ACTIVE"])
226 atomic_write(io_db["path_save"], string)
229 def obey_lines_in_file(path, name, do_record=False):
230 """Call obey() on each line of path's file, use name in input prefix."""
231 file = open(path, "r")
233 for line in file.readlines():
234 obey(line.rstrip(), name + "file line " + str(line_n),
240 def parse_command_line_arguments():
241 """Return settings values read from command line arguments."""
242 parser = argparse.ArgumentParser()
243 parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
245 opts, unknown = parser.parse_known_args()
250 """Ensure valid server out file belonging to current process.
252 This is done by comparing io_db["teststring"] to what's found at the start
253 of the current file at io_db["path_out"]. On failure, set
254 io_db["kicked_by_rival"] and raise SystemExit.
256 if not os.access(io_db["path_out"], os.F_OK):
257 raise SystemExit("Server output file has disappeared.")
258 file = open(io_db["path_out"], "r")
259 test = file.readline().rstrip("\n")
261 if test != io_db["teststring"]:
262 io_db["kicked_by_rival"] = True
263 msg = "Server test string in server output file does not match. This" \
264 " indicates that the current server process has been " \
265 "superseded by another one."
266 raise SystemExit(msg)
270 """Return next newline-delimited command from server in file.
272 Keep building return string until a newline is encountered. Pause between
273 unsuccessful reads, and after too much waiting, run server_test().
275 wait_on_fail = 0.03333
280 add = io_db["file_in"].readline()
282 command = command + add
283 if len(command) > 0 and "\n" == command[-1]:
284 command = command[:-1]
287 time.sleep(wait_on_fail)
288 if now + max_wait < time.time():
294 def try_worldstate_update():
295 """Write worldstate file if io_db["worldstate_updateable"] is set."""
296 if io_db["worldstate_updateable"]:
298 def draw_visible_Things(map, run):
299 for id in world_db["Things"]:
300 type = world_db["Things"][id]["T_TYPE"]
301 consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
302 alive = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]
303 if (0 == run and not consumable and not alive) \
304 or (1 == run and consumable and not alive) \
305 or (2 == run and alive):
306 y = world_db["Things"][id]["T_POSY"]
307 x = world_db["Things"][id]["T_POSX"]
308 fovflag = world_db["Things"][0]["fovmap"][(y * length) + x]
309 if 'v' == chr(fovflag):
310 c = world_db["ThingTypes"][type]["TT_SYMBOL"]
311 map[(y * length) + x] = ord(c)
313 def write_map(string, map):
314 for i in range(length):
315 line = map[i * length:(i * length) + length].decode()
316 string = string + line + "\n"
320 if [] == world_db["Things"][0]["T_CARRIES"]:
321 inventory = "(none)\n"
323 for id in world_db["Things"][0]["T_CARRIES"]:
324 type_id = world_db["Things"][id]["T_TYPE"]
325 name = world_db["ThingTypes"][type_id]["TT_NAME"]
326 inventory = inventory + name + "\n"
327 string = str(world_db["TURN"]) + "\n" + \
328 str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
329 str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
330 inventory + "%\n" + \
331 str(world_db["Things"][0]["T_POSY"]) + "\n" + \
332 str(world_db["Things"][0]["T_POSX"]) + "\n" + \
333 str(world_db["MAP_LENGTH"]) + "\n"
334 length = world_db["MAP_LENGTH"]
335 fov = bytearray(b' ' * (length ** 2))
336 for pos in range(length ** 2):
337 if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
338 fov[pos] = world_db["MAP"][pos]
340 draw_visible_Things(fov, i)
341 string = write_map(string, fov)
342 mem = world_db["Things"][0]["T_MEMMAP"][:]
344 for mt in world_db["Things"][0]["T_MEMTHING"]:
345 consumable = world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]
346 if (i == 0 and not consumable) or (i == 1 and consumable):
347 c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
348 mem[(mt[1] * length) + mt[2]] = ord(c)
349 string = write_map(string, mem)
350 atomic_write(io_db["path_worldstate"], string)
351 strong_write(io_db["file_out"], "WORLD_UPDATED\n")
352 io_db["worldstate_updateable"] = False
356 """Replay game from record file.
358 Use opts.replay as breakpoint turn to which to replay automatically before
359 switching to manual input by non-meta commands in server input file
360 triggering further reads of record file. Ensure opts.replay is at least 1.
361 Run try_worldstate_update() before each interactive obey()/read_command().
365 print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
366 " (if so late a turn is to be found).")
367 if not os.access(io_db["path_record"], os.F_OK):
368 raise SystemExit("No record file found to replay.")
369 io_db["file_record"] = open(io_db["path_record"], "r")
370 io_db["file_record"].prefix = "record file line "
371 io_db["file_record"].line_n = 1
372 while world_db["TURN"] < opts.replay:
373 line = io_db["file_record"].readline()
376 obey(line.rstrip(), io_db["file_record"].prefix
377 + str(io_db["file_record"].line_n))
378 io_db["file_record"].line_n = io_db["file_record"].line_n + 1
380 try_worldstate_update()
381 obey(read_command(), "in file", replay=True)
385 """Play game by server input file commands. Before, load save file found.
387 If no save file is found, a new world is generated from the commands in the
388 world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
389 command and all that follow via the server input file. Run
390 try_worldstate_update() before each interactive obey()/read_command().
392 if os.access(io_db["path_save"], os.F_OK):
393 obey_lines_in_file(io_db["path_save"], "save")
395 if not os.access(io_db["path_worldconf"], os.F_OK):
396 msg = "No world config file from which to start a new world."
397 raise SystemExit(msg)
398 obey_lines_in_file(io_db["path_worldconf"], "world config ",
400 obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
402 try_worldstate_update()
403 obey(read_command(), "in file", do_record=True)
407 """(Re-)make island map.
409 Let "~" represent water, "." land, "X" trees: Build island shape randomly,
410 start with one land cell in the middle, then go into cycle of repeatedly
411 selecting a random sea cell and transforming it into land if it is neighbor
412 to land. The cycle ends when a land cell is due to be created at the map's
413 border. Then put some trees on the map (TODO: more precise algorithm desc).
415 def is_neighbor(coordinates, type):
418 length = world_db["MAP_LENGTH"]
420 diag_west = x + (ind > 0)
421 diag_east = x + (ind < (length - 1))
422 pos = (y * length) + x
423 if (y > 0 and diag_east
424 and type == chr(world_db["MAP"][pos - length + ind])) \
426 and type == chr(world_db["MAP"][pos + 1])) \
427 or (y < (length - 1) and diag_east
428 and type == chr(world_db["MAP"][pos + length + ind])) \
429 or (y > 0 and diag_west
430 and type == chr(world_db["MAP"][pos - length - (not ind)])) \
432 and type == chr(world_db["MAP"][pos - 1])) \
433 or (y < (length - 1) and diag_west
434 and type == chr(world_db["MAP"][pos + length - (not ind)])):
437 store_seed = rand.seed
438 world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
439 length = world_db["MAP_LENGTH"]
440 add_half_width = (not (length % 2)) * int(length / 2)
441 world_db["MAP"][int((length ** 2) / 2) + add_half_width] = ord(".")
443 y = rand.next() % length
444 x = rand.next() % length
445 pos = (y * length) + x
446 if "~" == chr(world_db["MAP"][pos]) and is_neighbor((y, x), "."):
447 if y == 0 or y == (length - 1) or x == 0 or x == (length - 1):
449 world_db["MAP"][pos] = ord(".")
450 n_trees = int((length ** 2) / 16)
452 while (i_trees <= n_trees):
453 single_allowed = rand.next() % 32
454 y = rand.next() % length
455 x = rand.next() % length
456 pos = (y * length) + x
457 if "." == chr(world_db["MAP"][pos]) \
458 and ((not single_allowed) or is_neighbor((y, x), "X")):
459 world_db["MAP"][pos] = ord("X")
461 rand.seed = store_seed
462 # This all-too-precise replica of the original C code misses iter_limit().
465 def update_map_memory(t):
466 """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
467 if not t["T_MEMMAP"]:
468 t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
469 if not t["T_MEMDEPTHMAP"]:
470 t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
471 for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
472 if "v" == chr(t["fovmap"][pos])]:
473 t["T_MEMDEPTHMAP"][pos] = ord("0")
474 if " " == chr(t["T_MEMMAP"][pos]):
475 t["T_MEMMAP"][pos] = world_db["MAP"][pos]
477 # TODO: Aging of MEMDEPTHMAP.
478 for mt in [mt for mt in t["T_MEMTHING"]
479 if "v" == chr(t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
481 t["T_MEMTHING"].remove(mt)
482 for id in world_db["Things"]:
483 type = world_db["Things"][id]["T_TYPE"]
484 if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
485 y = world_db["Things"][id]["T_POSY"]
486 x = world_db["Things"][id]["T_POSX"]
487 if "v" == chr(t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]):
488 t["T_MEMTHING"].append((type, y, x))
491 def set_world_inactive():
492 """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
494 if os.access(io_db["path_worldstate"], os.F_OK):
495 os.remove(io_db["path_worldstate"])
496 world_db["WORLD_ACTIVE"] = 0
499 def integer_test(val_string, min, max):
500 """Return val_string if possible integer >= min and <= max, else None."""
502 val = int(val_string)
503 if val < min or val > max:
507 print("Ignoring: Please use integer >= " + str(min) + " and <= " +
512 def setter(category, key, min, max):
513 """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
516 val = integer_test(val_string, min, max)
520 if category == "Thing":
521 id_store = command_tid
522 decorator = test_Thing_id
523 elif category == "ThingType":
524 id_store = command_ttid
525 decorator = test_ThingType_id
526 elif category == "ThingAction":
527 id_store = command_taid
528 decorator = test_ThingAction_id
532 val = integer_test(val_string, min, max)
534 world_db[category + "s"][id_store.id][key] = val
538 def build_fov_map(t):
539 """Build Thing's FOV map."""
540 t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
541 maptype = ctypes.c_char * len(world_db["MAP"])
542 test = libpr.build_fov_map(t["T_POSY"], t["T_POSX"],
543 maptype.from_buffer(t["fovmap"]),
544 maptype.from_buffer(world_db["MAP"]))
546 raise RuntimeError("Malloc error in build_fov_Map().")
549 def decrement_lifepoints(t):
550 """Decrement t's lifepoints by 1, and if to zero, corpse it.
552 If t is the player avatar, only blank its fovmap, so that the client may
553 still display memory data. On non-player things, erase fovmap and memory.
555 t["T_LIFEPOINTS"] -= 1
556 if 0 == t["T_LIFEPOINTS"]:
557 t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
558 if world_db["Things"][0] == t:
559 t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
560 strong_write(io_db["file_out"], "LOG You die.\n")
563 t["T_MEMMAP"] = False
564 t["T_MEMDEPTHMAP"] = False
566 strong_write(io_db["file_out"], "LOG It dies.\n")
569 def mv_yx_in_dir_legal(dir, y, x):
570 """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
571 dir_c = dir.encode("ascii")[0]
572 test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
574 raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
575 return (test, libpr.result_y(), libpr.result_x())
579 """Make t do nothing (but loudly, if player avatar)."""
580 if t == world_db["Things"][0]:
581 strong_write(io_db["file_out"], "LOG You wait.\n")
585 """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
587 move_result = mv_yx_in_dir_legal(t["T_ARGUMENT"], t["T_POSY"], t["T_POSX"])
588 if 1 == move_result[0]:
589 pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
590 passable = "." == chr(world_db["MAP"][pos])
591 hitted = [id for id in world_db["Things"]
592 if world_db["Things"][id] != t
593 if world_db["Things"][id]["T_LIFEPOINTS"]
594 if world_db["Things"][id]["T_POSY"] == move_result[1]
595 if world_db["Things"][id]["T_POSX"] == move_result[2]]
598 hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
599 hitter = "You" if t == world_db["Things"][0] else hitter_name
600 hitted_type = world_db["Things"][hit_id]["T_TYPE"]
601 hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
602 hitted = "you" if hit_id == 0 else hitted_name
603 verb = " wound " if hitter == "You" else " wounds "
604 strong_write(io_db["file_out"], "LOG " + hitter + verb + hitted + \
606 decrement_lifepoints(world_db["Things"][hit_id])
608 dir = [dir for dir in directions_db
609 if directions_db[dir] == t["T_ARGUMENT"]][0]
611 t["T_POSY"] = move_result[1]
612 t["T_POSX"] = move_result[2]
613 for id in t["T_CARRIES"]:
614 world_db["Things"][id]["T_POSY"] = move_result[1]
615 world_db["Things"][id]["T_POSX"] = move_result[2]
617 strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
619 strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
622 def actor_pick_up(t):
623 """Make t pick up (topmost?) Thing from ground into inventory."""
624 # Topmostness is actually not defined so far.
625 ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
626 if not world_db["Things"][id]["carried"]
627 if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
628 if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
630 world_db["Things"][ids[0]]["carried"] = True
631 t["T_CARRIES"].append(ids[0])
632 if t == world_db["Things"][0]:
633 strong_write(io_db["file_out"], "LOG You pick up an object.\n")
634 elif t == world_db["Things"][0]:
635 err = "You try to pick up an object, but there is none."
636 strong_write(io_db["file_out"], "LOG " + err + "\n")
640 """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
641 # TODO: Handle case where T_ARGUMENT matches nothing.
642 if len(t["T_CARRIES"]):
643 id = t["T_CARRIES"][t["T_ARGUMENT"]]
644 t["T_CARRIES"].remove(id)
645 world_db["Things"][id]["carried"] = False
646 if t == world_db["Things"][0]:
647 strong_write(io_db["file_out"], "LOG You drop an object.\n")
648 elif t == world_db["Things"][0]:
649 err = "You try to drop an object, but you own none."
650 strong_write(io_db["file_out"], "LOG " + err + "\n")
654 """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
655 # Original wrongly featured lifepoints increase through consumable!
656 # TODO: Handle case where T_ARGUMENT matches nothing.
657 if len(t["T_CARRIES"]):
658 id = t["T_CARRIES"][t["T_ARGUMENT"]]
659 type = world_db["Things"][id]["T_TYPE"]
660 if world_db["ThingTypes"][type]["TT_CONSUMABLE"]:
661 t["T_CARRIES"].remove(id)
662 del world_db["Things"][id]
663 t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_CONSUMABLE"]
664 strong_write(io_db["file_out"], "LOG You consume this object.\n")
666 strong_write(io_db["file_out"], "LOG You try to use this object," +
669 strong_write(io_db["file_out"], "LOG You try to use an object, but " +
673 def thingproliferation(t):
674 """To chance of 1/TT_PROLIFERATE, create t offspring in neighbor cell.
676 Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be
677 passable and not be inhabited by a Thing of the same type, or, if Thing is
678 animate, any other animate Thing. If there are several map cell candidates,
679 one is selected randomly.
681 def test_cell(t, y, x):
682 if "." == chr(world_db["MAP"][(y * world_db["MAP_LENGTH"]) + x]):
683 for id in [id for id in world_db["Things"]
684 if y == world_db["Things"][id]["T_POSY"]
685 if x == world_db["Things"][id]["T_POSX"]
686 if (t["T_TYPE"] == world_db["Things"][id]["T_TYPE"])
687 or (t["T_LIFEPOINTS"] and
688 world_db["Things"][id]["T_LIFEPOINTS"])]:
692 prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
693 if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
695 for dir in [directions_db[key] for key in directions_db]:
696 mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
697 if mv_result[0] and test_cell(t, mv_result[1], mv_result[2]):
698 candidates.append((mv_result[1], mv_result[2]))
700 i = rand.next() % len(candidates)
701 id = id_setter(-1, "Things")
702 newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
703 world_db["Things"][id] = newT
707 """Decrement t's satiation, dependent on it trigger lifepoint dec chance."""
708 if t["T_SATIATION"] > -32768:
709 t["T_SATIATION"] -= 1
710 testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
711 if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
712 raise RuntimeError("A thing that should not hunger is hungering.")
713 stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
714 if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
715 if t == world_db["Things"][0]:
716 strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
718 name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
719 strong_write(io_db["file_out"], "LOG " + name + \
720 " suffers from hunger.\n")
721 decrement_lifepoints(t)
725 """Run game world and its inhabitants until new player input expected."""
728 while world_db["Things"][0]["T_LIFEPOINTS"]:
729 for id in [id for id in world_db["Things"]]:
730 Thing = world_db["Things"][id]
731 if Thing["T_LIFEPOINTS"]:
732 if not Thing["T_COMMAND"]:
733 update_map_memory(Thing)
738 Thing["T_COMMAND"] = 1
740 Thing["T_PROGRESS"] += 1
741 taid = [a for a in world_db["ThingActions"]
742 if a == Thing["T_COMMAND"]][0]
743 ThingAction = world_db["ThingActions"][taid]
744 if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
745 eval("actor_" + ThingAction["TA_NAME"])(Thing)
746 Thing["T_COMMAND"] = 0
747 Thing["T_PROGRESS"] = 0
749 thingproliferation(Thing)
752 world_db["TURN"] += 1
755 def new_Thing(type, pos=(0,0)):
756 """Return Thing of type T_TYPE, with fovmap if alive and world active."""
758 "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
770 "T_MEMDEPTHMAP": False,
773 if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
778 def id_setter(id, category, id_store=False, start_at_1=False):
779 """Set ID of object of category to manipulate ID unused? Create new one.
781 The ID is stored as id_store.id (if id_store is set). If the integer of the
782 input is valid (if start_at_1, >= 0 and <= 255, else >= -32768 and <=
783 32767), but <0 or (if start_at_1) <1, calculate new ID: lowest unused ID
784 >=0 or (if start_at_1) >= 1, and <= 255. None is always returned when no
785 new object is created, otherwise the new object's ID.
787 min = 0 if start_at_1 else -32768
788 max = 255 if start_at_1 else 32767
790 id = integer_test(id, min, max)
792 if id in world_db[category]:
797 if (start_at_1 and 0 == id) \
798 or ((not start_at_1) and (id < 0 or id > 255)):
802 if id not in world_db[category]:
806 "No unused ID available to add to ID list.")
814 """Send PONG line to server output file."""
815 strong_write(io_db["file_out"], "PONG\n")
819 """Abort server process."""
820 raise SystemExit("received QUIT command")
823 def command_thingshere(str_y, str_x):
824 """Write to out file list of Things known to player at coordinate y, x."""
825 def write_thing_if_here():
826 if y == world_db["Things"][id]["T_POSY"] \
827 and x == world_db["Things"][id]["T_POSX"] \
828 and not world_db["Things"][id]["carried"]:
829 type = world_db["Things"][id]["T_TYPE"]
830 name = world_db["ThingTypes"][type]["TT_NAME"]
831 strong_write(io_db["file_out"], name + "\n")
832 if world_db["WORLD_ACTIVE"]:
833 y = integer_test(str_y, 0, 255)
834 x = integer_test(str_x, 0, 255)
835 length = world_db["MAP_LENGTH"]
836 if None != y and None != x and y < length and x < length:
837 pos = (y * world_db["MAP_LENGTH"]) + x
838 strong_write(io_db["file_out"], "THINGS_HERE START\n")
839 if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
840 for id in world_db["Things"]:
841 write_thing_if_here()
843 for id in world_db["Things"][0]["T_MEMTHING"]:
844 write_thing_if_here()
845 strong_write(io_db["file_out"], "THINGS_HERE END\n")
847 print("Ignoring: Invalid map coordinates.")
849 print("Ignoring: Command only works on existing worlds.")
852 def play_commander(action, args=False):
853 """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
855 T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
859 id = [x for x in world_db["ThingActions"]
860 if world_db["ThingActions"][x]["TA_NAME"] == action][0]
861 world_db["Things"][0]["T_COMMAND"] = id
864 def set_command_and_argument_int(str_arg):
865 val = integer_test(str_arg, 0, 255)
867 world_db["Things"][0]["T_ARGUMENT"] = val
870 def set_command_and_argument_movestring(str_arg):
871 if str_arg in directions_db:
872 world_db["Things"][0]["T_ARGUMENT"] = directions_db[str_arg]
875 print("Ignoring: Argument must be valid direction string.")
878 return set_command_and_argument_movestring
880 return set_command_and_argument_int
885 def command_seedrandomness(seed_string):
886 """Set rand seed to int(seed_string)."""
887 val = integer_test(seed_string, 0, 4294967295)
892 def command_seedmap(seed_string):
893 """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
894 setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
898 def command_makeworld(seed_string):
899 """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
901 Seed rand with seed, fill it into world_db["SEED_MAP"]. Do more only with a
902 "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType of
903 TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
904 and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
905 according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
906 of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
907 other. Init player's memory map. Write "NEW_WORLD" line to out file.
913 err = "Space to put thing on too hard to find. Map too small?"
915 y = rand.next() % world_db["MAP_LENGTH"]
916 x = rand.next() % world_db["MAP_LENGTH"]
917 if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
921 raise SystemExit(err)
922 # Replica of C code, wrongly ignores animatedness of new Thing.
923 pos_clear = (0 == len([id for id in world_db["Things"]
924 if world_db["Things"][id]["T_LIFEPOINTS"]
925 if world_db["Things"][id]["T_POSY"] == y
926 if world_db["Things"][id]["T_POSX"] == x]))
931 val = integer_test(seed_string, 0, 4294967295)
935 world_db["SEED_MAP"] = val
936 player_will_be_generated = False
937 playertype = world_db["PLAYER_TYPE"]
938 for ThingType in world_db["ThingTypes"]:
939 if playertype == ThingType:
940 if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
941 player_will_be_generated = True
943 if not player_will_be_generated:
944 print("Ignoring beyond SEED_MAP: " +
945 "No player type with start number >0 defined.")
948 for ThingAction in world_db["ThingActions"]:
949 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
952 print("Ignoring beyond SEED_MAP: " +
953 "No thing action with name 'wait' defined.")
955 world_db["Things"] = {}
957 world_db["WORLD_ACTIVE"] = 1
959 for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
960 id = id_setter(-1, "Things")
961 world_db["Things"][id] = new_Thing(playertype, free_pos())
962 update_map_memory(world_db["Things"][0])
963 for type in world_db["ThingTypes"]:
964 for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
965 if type != playertype:
966 id = id_setter(-1, "Things")
967 world_db["Things"][id] = new_Thing(type, free_pos())
968 strong_write(io_db["file_out"], "NEW_WORLD\n")
971 def command_maplength(maplength_string):
972 """Redefine map length. Invalidate map, therefore lose all things on it."""
973 val = integer_test(maplength_string, 1, 256)
975 world_db["MAP_LENGTH"] = val
977 world_db["Things"] = {}
978 libpr.set_maplength(val)
981 def command_worldactive(worldactive_string):
982 """Toggle world_db["WORLD_ACTIVE"] if possible.
984 An active world can always be set inactive. An inactive world can only be
985 set active with a "wait" ThingAction, and a player Thing (of ID 0). On
986 activation, rebuild all Things' FOVs, and the player's map memory.
988 # In original version, map existence was also tested (unnecessarily?).
989 val = integer_test(worldactive_string, 0, 1)
991 if 0 != world_db["WORLD_ACTIVE"]:
995 print("World already active.")
996 elif 0 == world_db["WORLD_ACTIVE"]:
998 for ThingAction in world_db["ThingActions"]:
999 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
1002 player_exists = False
1003 for Thing in world_db["Things"]:
1005 player_exists = True
1007 if wait_exists and player_exists:
1008 for id in world_db["Things"]:
1009 if world_db["Things"][id]["T_LIFEPOINTS"]:
1010 build_fov_map(world_db["Things"][id])
1012 update_map_memory(world_db["Things"][id])
1013 world_db["WORLD_ACTIVE"] = 1
1016 def test_for_id_maker(object, category):
1017 """Return decorator testing for object having "id" attribute."""
1020 if hasattr(object, "id"):
1023 print("Ignoring: No " + category +
1024 " defined to manipulate yet.")
1029 def command_tid(id_string):
1030 """Set ID of Thing to manipulate. ID unused? Create new one.
1032 Default new Thing's type to the first available ThingType, others: zero.
1034 id = id_setter(id_string, "Things", command_tid)
1036 if world_db["ThingTypes"] == {}:
1037 print("Ignoring: No ThingType to settle new Thing in.")
1039 type = list(world_db["ThingTypes"].keys())[0]
1040 world_db["Things"][id] = new_Thing(type)
1043 test_Thing_id = test_for_id_maker(command_tid, "Thing")
1047 def command_tcommand(str_int):
1048 """Set T_COMMAND of selected Thing."""
1049 val = integer_test(str_int, 0, 255)
1051 if 0 == val or val in world_db["ThingActions"]:
1052 world_db["Things"][command_tid.id]["T_COMMAND"] = val
1054 print("Ignoring: ThingAction ID belongs to no known ThingAction.")
1058 def command_ttype(str_int):
1059 """Set T_TYPE of selected Thing."""
1060 val = integer_test(str_int, 0, 255)
1062 if val in world_db["ThingTypes"]:
1063 world_db["Things"][command_tid.id]["T_TYPE"] = val
1065 print("Ignoring: ThingType ID belongs to no known ThingType.")
1069 def command_tcarries(str_int):
1070 """Append int(str_int) to T_CARRIES of selected Thing.
1072 The ID int(str_int) must not be of the selected Thing, and must belong to a
1073 Thing with unset "carried" flag. Its "carried" flag will be set on owning.
1075 val = integer_test(str_int, 0, 255)
1077 if val == command_tid.id:
1078 print("Ignoring: Thing cannot carry itself.")
1079 elif val in world_db["Things"] \
1080 and not world_db["Things"][val]["carried"]:
1081 world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
1082 world_db["Things"][val]["carried"] = True
1084 print("Ignoring: Thing not available for carrying.")
1085 # Note that the whole carrying structure is different from the C version:
1086 # Carried-ness is marked by a "carried" flag, not by Things containing
1087 # Things internally.
1091 def command_tmemthing(str_t, str_y, str_x):
1092 """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
1094 The type must fit to an existing ThingType, and the position into the map.
1096 type = integer_test(str_t, 0, 255)
1097 posy = integer_test(str_y, 0, 255)
1098 posx = integer_test(str_x, 0, 255)
1099 if None != type and None != posy and None != posx:
1100 if type not in world_db["ThingTypes"] \
1101 or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
1102 print("Ignoring: Illegal value for thing type or position.")
1104 memthing = (type, posy, posx)
1105 world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
1108 def setter_map(maptype):
1109 """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
1111 If Thing has no map of maptype yet, initialize it with ' ' bytes first.
1114 def helper(str_int, mapline):
1115 val = integer_test(str_int, 0, 255)
1117 if val >= world_db["MAP_LENGTH"]:
1118 print("Illegal value for map line number.")
1119 elif len(mapline) != world_db["MAP_LENGTH"]:
1120 print("Map line length is unequal map width.")
1122 length = world_db["MAP_LENGTH"]
1124 if not world_db["Things"][command_tid.id][maptype]:
1125 map = bytearray(b' ' * (length ** 2))
1127 map = world_db["Things"][command_tid.id][maptype]
1128 map[val * length:(val * length) + length] = mapline.encode()
1129 world_db["Things"][command_tid.id][maptype] = map
1133 def setter_tpos(axis):
1134 """Generate setter for T_POSX or T_POSY of selected Thing.
1136 If world is active, rebuilds animate things' fovmap, player's memory map.
1139 def helper(str_int):
1140 val = integer_test(str_int, 0, 255)
1142 if val < world_db["MAP_LENGTH"]:
1143 world_db["Things"][command_tid.id]["T_POS" + axis] = val
1144 if world_db["WORLD_ACTIVE"] \
1145 and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
1146 build_fov_map(world_db["Things"][command_tid.id])
1147 if 0 == command_tid.id:
1148 update_map_memory(world_db["Things"][command_tid.id])
1150 print("Ignoring: Position is outside of map.")
1154 def command_ttid(id_string):
1155 """Set ID of ThingType to manipulate. ID unused? Create new one.
1157 Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
1159 id = id_setter(id_string, "ThingTypes", command_ttid)
1161 world_db["ThingTypes"][id] = {
1162 "TT_NAME": "(none)",
1165 "TT_PROLIFERATE": 0,
1166 "TT_START_NUMBER": 0,
1172 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
1176 def command_ttname(name):
1177 """Set TT_NAME of selected ThingType."""
1178 world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
1182 def command_ttsymbol(char):
1183 """Set TT_SYMBOL of selected ThingType. """
1185 world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
1187 print("Ignoring: Argument must be single character.")
1191 def command_ttcorpseid(str_int):
1192 """Set TT_CORPSE_ID of selected ThingType."""
1193 val = integer_test(str_int, 0, 255)
1195 if val in world_db["ThingTypes"]:
1196 world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
1198 print("Ignoring: Corpse ID belongs to no known ThignType.")
1201 def command_taid(id_string):
1202 """Set ID of ThingAction to manipulate. ID unused? Create new one.
1204 Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
1206 id = id_setter(id_string, "ThingActions", command_taid, True)
1208 world_db["ThingActions"][id] = {
1214 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
1217 @test_ThingAction_id
1218 def command_taname(name):
1219 """Set TA_NAME of selected ThingAction.
1221 The name must match a valid thing action function. If after the name
1222 setting no ThingAction with name "wait" remains, call set_world_inactive().
1224 if name == "wait" or name == "move" or name == "use" or name == "drop" \
1225 or name == "pick_up":
1226 world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
1227 if 1 == world_db["WORLD_ACTIVE"]:
1228 wait_defined = False
1229 for id in world_db["ThingActions"]:
1230 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
1233 if not wait_defined:
1234 set_world_inactive()
1236 print("Ignoring: Invalid action name.")
1237 # In contrast to the original,naming won't map a function to a ThingAction.
1240 """Commands database.
1242 Map command start tokens to ([0]) number of expected command arguments, ([1])
1243 the command's meta-ness (i.e. is it to be written to the record file, is it to
1244 be ignored in replay mode if read from server input file), and ([2]) a function
1248 "QUIT": (0, True, command_quit),
1249 "PING": (0, True, command_ping),
1250 "THINGS_HERE": (2, True, command_thingshere),
1251 "MAKE_WORLD": (1, False, command_makeworld),
1252 "SEED_MAP": (1, False, command_seedmap),
1253 "SEED_RANDOMNESS": (1, False, command_seedrandomness),
1254 "TURN": (1, False, setter(None, "TURN", 0, 65535)),
1255 "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0, 255)),
1256 "MAP_LENGTH": (1, False, command_maplength),
1257 "WORLD_ACTIVE": (1, False, command_worldactive),
1258 "TA_ID": (1, False, command_taid),
1259 "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
1260 "TA_NAME": (1, False, command_taname),
1261 "TT_ID": (1, False, command_ttid),
1262 "TT_NAME": (1, False, command_ttname),
1263 "TT_SYMBOL": (1, False, command_ttsymbol),
1264 "TT_CORPSE_ID": (1, False, command_ttcorpseid),
1265 "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
1267 "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
1269 "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
1271 "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
1272 "T_ID": (1, False, command_tid),
1273 "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
1274 "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
1275 "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
1276 "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
1277 "T_COMMAND": (1, False, command_tcommand),
1278 "T_TYPE": (1, False, command_ttype),
1279 "T_CARRIES": (1, False, command_tcarries),
1280 "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
1281 "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
1282 "T_MEMTHING": (3, False, command_tmemthing),
1283 "T_POSY": (1, False, setter_tpos("Y")),
1284 "T_POSX": (1, False, setter_tpos("X")),
1285 "wait": (0, False, play_commander("wait")),
1286 "move": (1, False, play_commander("move")),
1287 "pick_up": (0, False, play_commander("pick_up")),
1288 "drop": (1, False, play_commander("drop", True)),
1289 "use": (1, False, play_commander("use", True)),
1293 """World state database. With sane default values. (Randomness is in rand.)"""
1305 """Mapping of direction names to internal direction chars."""
1306 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
1307 "west": "s", "north-west": "w", "north-east": "e"}
1309 """File IO database."""
1311 "path_save": "save",
1312 "path_record": "record",
1313 "path_worldconf": "confserver/world",
1314 "path_server": "server/",
1315 "path_in": "server/in",
1316 "path_out": "server/out",
1317 "path_worldstate": "server/worldstate",
1318 "tmp_suffix": "_tmp",
1319 "kicked_by_rival": False,
1320 "worldstate_updateable": False
1325 libpr = prep_library()
1326 rand = RandomnessIO()
1327 opts = parse_command_line_arguments()
1329 if None != opts.replay:
1333 except SystemExit as exit:
1334 print("ABORTING: " + exit.args[0])
1336 print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")