-import errno, os, time
+import argparse
+import errno
+import os
+import shlex
+import shutil
+import time
+import ctypes
-def setup_server_io(io_db):
+
+class RandomnessIO:
+ """"Interface to libplomrogue's pseudo-randomness generator."""
+
+ def set_seed(self, seed):
+ libpr.seed_rrand(1, seed)
+
+ def get_seed(self):
+ return libpr.seed_rrand(0, 0)
+
+ def next(self):
+ return libpr.rrand()
+
+ seed = property(get_seed, set_seed)
+
+
+def prep_library():
+ """Prepare ctypes library at ./libplomrogue.so"""
+ libpath = ("./libplomrogue.so")
+ if not os.access(libpath, os.F_OK):
+ raise SystemExit("No library " + libpath + ", run ./compile.sh first?")
+ libpr = ctypes.cdll.LoadLibrary(libpath)
+ libpr.seed_rrand.argtypes = [ctypes.c_uint8, ctypes.c_uint32]
+ libpr.seed_rrand.restype = ctypes.c_uint32
+ libpr.rrand.argtypes = []
+ libpr.rrand.restype = ctypes.c_uint16
+ libpr.set_maplength.argtypes = [ctypes.c_uint16]
+ libpr.mv_yx_in_dir_legal_wrap.argtypes = [ctypes.c_char, ctypes.c_uint8,
+ ctypes.c_uint8]
+ libpr.mv_yx_in_dir_legal_wrap.restype = ctypes.c_uint8
+ libpr.result_y.restype = ctypes.c_uint8
+ libpr.result_x.restype = ctypes.c_uint8
+ libpr.set_maplength(world_db["MAP_LENGTH"])
+ libpr.build_fov_map.argtypes = [ctypes.c_uint8, ctypes.c_uint8,
+ ctypes.c_char_p, ctypes.c_char_p]
+ libpr.build_fov_map.restype = ctypes.c_uint8
+ libpr.init_score_map.restype = ctypes.c_uint8
+ libpr.set_map_score.argtypes = [ctypes.c_uint16, ctypes.c_uint16]
+ libpr.set_map_score.restype = ctypes.c_uint8
+ libpr.get_map_score.argtypes = [ctypes.c_uint16]
+ libpr.get_map_score.restype = ctypes.c_int32
+ libpr.get_neighbor_score.argtypes = [ctypes.c_uint8]
+ libpr.get_neighbor_score.restype = ctypes.c_uint16
+ libpr.ready_neighbor_scores.argtpes = [ctypes.c_uint16]
+ libpr.ready_neighbor_scores.restype = ctypes.c_uint8
+ libpr.dijkstra_map.restype = ctypes.c_uint8
+ return libpr
+
+
+def strong_write(file, string):
+ """Apply write(string), flush(), and os.fsync() to file."""
+ file.write(string)
+ file.flush()
+ os.fsync(file)
+
+
+def setup_server_io():
"""Fill IO files DB with proper file( path)s. Write process IO test string.
- Ensure IO files directory at server/. Remove any old in file if found. Set
- up new in file (io_db["file_in"]) for reading at io_db["path_in"], and new
- out file (io_db["file_out"]) for writing at io_db["path_out"]. Start out
- file with process hash line of format PID + " " + floated UNIX time
- (io_db["teststring"]). Set worldstate file path io_db["path_worldstate"].
+ Ensure IO files directory at server/. Remove any old input file if found.
+ Set up new input file for reading, and new output file for writing. Start
+ output file with process hash line of format PID + " " + floated UNIX time
+ (io_db["teststring"]). Raise SystemExit if file is found at path of either
+ record or save file plus io_db["tmp_suffix"].
"""
- io_dir = "server/"
- io_db["path_in"] = io_dir + "in"
- io_db["path_out"] = io_dir + "out"
- io_db["path_worldstate"] = io_dir + "worldstate"
+ def detect_atomic_leftover(path, tmp_suffix):
+ path_tmp = path + tmp_suffix
+ msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
+ "aborted previous attempt to write '" + path + "'. Aborting " \
+ "until matter is resolved by removing it from its current path."
+ if os.access(path_tmp, os.F_OK):
+ raise SystemExit(msg)
io_db["teststring"] = str(os.getpid()) + " " + str(time.time())
- os.makedirs(io_dir, exist_ok=True)
+ os.makedirs(io_db["path_server"], exist_ok=True)
io_db["file_out"] = open(io_db["path_out"], "w")
- io_db["file_out"].write(io_db["teststring"] + "\n")
- io_db["file_out"].flush() # TODO: Explain necessity.
+ strong_write(io_db["file_out"], io_db["teststring"] + "\n")
if os.access(io_db["path_in"], os.F_OK):
os.remove(io_db["path_in"])
io_db["file_in"] = open(io_db["path_in"], "w")
io_db["file_in"].close()
io_db["file_in"] = open(io_db["path_in"], "r")
+ detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
+ detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
+
+
+def cleanup_server_io():
+ """Close and (if io_db["kicked_by_rival"] false) remove files in io_db."""
+ def helper(file_key, path_key):
+ if file_key in io_db:
+ io_db[file_key].close()
+ if not io_db["kicked_by_rival"] \
+ and os.access(io_db[path_key], os.F_OK):
+ os.remove(io_db[path_key])
+ helper("file_out", "path_out")
+ helper("file_in", "path_in")
+ helper("file_worldstate", "path_worldstate")
+ if "file_record" in io_db:
+ io_db["file_record"].close()
+
+
+def obey(command, prefix, replay=False, do_record=False):
+ """Call function from commands_db mapped to command's first token.
+
+ Tokenize command string with shlex.split(comments=True). If replay is set,
+ a non-meta command from the commands_db merely triggers obey() on the next
+ command from the records file. If not, non-meta commands set
+ io_db["worldstate_updateable"] to world_db["WORLD_EXISTS"], and, if
+ do_record is set, are recorded via record(), and save_world() is called.
+ The prefix string is inserted into the server's input message between its
+ beginning 'input ' & ':'. All activity is preceded by a server_test() call.
+ """
+ server_test()
+ print("input " + prefix + ": " + command)
+ try:
+ tokens = shlex.split(command, comments=True)
+ except ValueError as err:
+ print("Can't tokenize command string: " + str(err) + ".")
+ return
+ if len(tokens) > 0 and tokens[0] in commands_db \
+ and len(tokens) == commands_db[tokens[0]][0] + 1:
+ if commands_db[tokens[0]][1]:
+ commands_db[tokens[0]][2](*tokens[1:])
+ elif replay:
+ print("Due to replay mode, reading command as 'go on in record'.")
+ line = io_db["file_record"].readline()
+ if len(line) > 0:
+ obey(line.rstrip(), io_db["file_record"].prefix
+ + str(io_db["file_record"].line_n))
+ io_db["file_record"].line_n = io_db["file_record"].line_n + 1
+ else:
+ print("Reached end of record file.")
+ else:
+ commands_db[tokens[0]][2](*tokens[1:])
+ if do_record:
+ record(command)
+ save_world()
+ io_db["worldstate_updateable"] = world_db["WORLD_ACTIVE"]
+ elif 0 != len(tokens):
+ print("Invalid command/argument, or bad number of tokens.")
+
+
+def atomic_write(path, text, do_append=False):
+ """Atomic write of text to file at path, appended if do_append is set."""
+ path_tmp = path + io_db["tmp_suffix"]
+ mode = "w"
+ if do_append:
+ mode = "a"
+ if os.access(path, os.F_OK):
+ shutil.copyfile(path, path_tmp)
+ file = open(path_tmp, mode)
+ strong_write(file, text)
+ file.close()
+ if os.access(path, os.F_OK):
+ os.remove(path)
+ os.rename(path_tmp, path)
+
+
+def record(command):
+ """Append command string plus newline to record file. (Atomic.)"""
+ # This misses some optimizations from the original record(), namely only
+ # finishing the atomic write with expensive flush() and fsync() every 15
+ # seconds unless explicitely forced. Implement as needed.
+ atomic_write(io_db["path_record"], command + "\n", do_append=True)
+
+
+def save_world():
+ """Save all commands needed to reconstruct current world state."""
+ # TODO: Misses same optimizations as record() from the original record().
+
+ def quote(string):
+ string = string.replace("\u005C", '\u005C\u005C')
+ return '"' + string.replace('"', '\u005C"') + '"'
+
+ def mapsetter(key):
+ def helper(id):
+ string = ""
+ if world_db["Things"][id][key]:
+ map = world_db["Things"][id][key]
+ length = world_db["MAP_LENGTH"]
+ for i in range(length):
+ line = map[i * length:(i * length) + length].decode()
+ string = string + key + " " + str(i) + " " + quote(line) \
+ + "\n"
+ return string
+ return helper
+
+ def memthing(id):
+ string = ""
+ for memthing in world_db["Things"][id]["T_MEMTHING"]:
+ string = string + "T_MEMTHING " + str(memthing[0]) + " " + \
+ str(memthing[1]) + " " + str(memthing[2]) + "\n"
+ return string
+
+ def helper(category, id_string, special_keys={}):
+ string = ""
+ for id in world_db[category]:
+ string = string + id_string + " " + str(id) + "\n"
+ for key in world_db[category][id]:
+ if not key in special_keys:
+ x = world_db[category][id][key]
+ argument = quote(x) if str == type(x) else str(x)
+ string = string + key + " " + argument + "\n"
+ elif special_keys[key]:
+ string = string + special_keys[key](id)
+ return string
+
+ string = ""
+ for key in world_db:
+ if dict != type(world_db[key]) and key != "MAP" and \
+ key != "WORLD_ACTIVE" and key != "SEED_MAP":
+ string = string + key + " " + str(world_db[key]) + "\n"
+ string = string + "SEED_MAP " + str(world_db["SEED_MAP"]) + "\n"
+ string = string + helper("ThingActions", "TA_ID")
+ string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
+ for id in world_db["ThingTypes"]:
+ string = string + "TT_ID " + str(id) + "\n" + "TT_CORPSE_ID " + \
+ str(world_db["ThingTypes"][id]["TT_CORPSE_ID"]) + "\n"
+ string = string + helper("Things", "T_ID",
+ {"T_CARRIES": False, "carried": False,
+ "T_MEMMAP": mapsetter("T_MEMMAP"),
+ "T_MEMTHING": memthing, "fovmap": False,
+ "T_MEMDEPTHMAP": mapsetter("T_MEMDEPTHMAP")})
+ for id in world_db["Things"]:
+ if [] != world_db["Things"][id]["T_CARRIES"]:
+ string = string + "T_ID " + str(id) + "\n"
+ for carried_id in world_db["Things"][id]["T_CARRIES"]:
+ string = string + "T_CARRIES " + str(carried_id) + "\n"
+ string = string + "SEED_RANDOMNESS " + str(rand.seed) + "\n" + \
+ "WORLD_ACTIVE " + str(world_db["WORLD_ACTIVE"])
+ atomic_write(io_db["path_save"], string)
+
+
+def obey_lines_in_file(path, name, do_record=False):
+ """Call obey() on each line of path's file, use name in input prefix."""
+ file = open(path, "r")
+ line_n = 1
+ for line in file.readlines():
+ obey(line.rstrip(), name + "file line " + str(line_n),
+ do_record=do_record)
+ line_n = line_n + 1
+ file.close()
+
+
+def parse_command_line_arguments():
+ """Return settings values read from command line arguments."""
+ parser = argparse.ArgumentParser()
+ parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
+ action='store')
+ opts, unknown = parser.parse_known_args()
+ return opts
+
+
+def server_test():
+ """Ensure valid server out file belonging to current process.
+
+ This is done by comparing io_db["teststring"] to what's found at the start
+ of the current file at io_db["path_out"]. On failure, set
+ io_db["kicked_by_rival"] and raise SystemExit.
+ """
+ if not os.access(io_db["path_out"], os.F_OK):
+ raise SystemExit("Server output file has disappeared.")
+ file = open(io_db["path_out"], "r")
+ test = file.readline().rstrip("\n")
+ file.close()
+ if test != io_db["teststring"]:
+ io_db["kicked_by_rival"] = True
+ msg = "Server test string in server output file does not match. This" \
+ " indicates that the current server process has been " \
+ "superseded by another one."
+ raise SystemExit(msg)
+
+
+def read_command():
+ """Return next newline-delimited command from server in file.
+
+ Keep building return string until a newline is encountered. Pause between
+ unsuccessful reads, and after too much waiting, run server_test().
+ """
+ wait_on_fail = 0.03333
+ max_wait = 5
+ now = time.time()
+ command = ""
+ while True:
+ add = io_db["file_in"].readline()
+ if len(add) > 0:
+ command = command + add
+ if len(command) > 0 and "\n" == command[-1]:
+ command = command[:-1]
+ break
+ else:
+ time.sleep(wait_on_fail)
+ if now + max_wait < time.time():
+ server_test()
+ now = time.time()
+ return command
+
+
+def try_worldstate_update():
+ """Write worldstate file if io_db["worldstate_updateable"] is set."""
+ if io_db["worldstate_updateable"]:
+
+ def draw_visible_Things(map, run):
+ for id in world_db["Things"]:
+ type = world_db["Things"][id]["T_TYPE"]
+ consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
+ alive = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]
+ if (0 == run and not consumable and not alive) \
+ or (1 == run and consumable and not alive) \
+ or (2 == run and alive):
+ y = world_db["Things"][id]["T_POSY"]
+ x = world_db["Things"][id]["T_POSX"]
+ fovflag = world_db["Things"][0]["fovmap"][(y * length) + x]
+ if 'v' == chr(fovflag):
+ c = world_db["ThingTypes"][type]["TT_SYMBOL"]
+ map[(y * length) + x] = ord(c)
+
+ def write_map(string, map):
+ for i in range(length):
+ line = map[i * length:(i * length) + length].decode()
+ string = string + line + "\n"
+ return string
+
+ inventory = ""
+ if [] == world_db["Things"][0]["T_CARRIES"]:
+ inventory = "(none)\n"
+ else:
+ for id in world_db["Things"][0]["T_CARRIES"]:
+ type_id = world_db["Things"][id]["T_TYPE"]
+ name = world_db["ThingTypes"][type_id]["TT_NAME"]
+ inventory = inventory + name + "\n"
+ string = str(world_db["TURN"]) + "\n" + \
+ str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
+ str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
+ inventory + "%\n" + \
+ str(world_db["Things"][0]["T_POSY"]) + "\n" + \
+ str(world_db["Things"][0]["T_POSX"]) + "\n" + \
+ str(world_db["MAP_LENGTH"]) + "\n"
+ length = world_db["MAP_LENGTH"]
+ fov = bytearray(b' ' * (length ** 2))
+ for pos in range(length ** 2):
+ if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
+ fov[pos] = world_db["MAP"][pos]
+ for i in range(3):
+ draw_visible_Things(fov, i)
+ string = write_map(string, fov)
+ mem = world_db["Things"][0]["T_MEMMAP"][:]
+ for i in range(2):
+ for mt in world_db["Things"][0]["T_MEMTHING"]:
+ consumable = world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]
+ if (i == 0 and not consumable) or (i == 1 and consumable):
+ c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
+ mem[(mt[1] * length) + mt[2]] = ord(c)
+ string = write_map(string, mem)
+ atomic_write(io_db["path_worldstate"], string)
+ strong_write(io_db["file_out"], "WORLD_UPDATED\n")
+ io_db["worldstate_updateable"] = False
+
+
+def replay_game():
+ """Replay game from record file.
+
+ Use opts.replay as breakpoint turn to which to replay automatically before
+ switching to manual input by non-meta commands in server input file
+ triggering further reads of record file. Ensure opts.replay is at least 1.
+ Run try_worldstate_update() before each interactive obey()/read_command().
+ """
+ if opts.replay < 1:
+ opts.replay = 1
+ print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
+ " (if so late a turn is to be found).")
+ if not os.access(io_db["path_record"], os.F_OK):
+ raise SystemExit("No record file found to replay.")
+ io_db["file_record"] = open(io_db["path_record"], "r")
+ io_db["file_record"].prefix = "record file line "
+ io_db["file_record"].line_n = 1
+ while world_db["TURN"] < opts.replay:
+ line = io_db["file_record"].readline()
+ if "" == line:
+ break
+ obey(line.rstrip(), io_db["file_record"].prefix
+ + str(io_db["file_record"].line_n))
+ io_db["file_record"].line_n = io_db["file_record"].line_n + 1
+ while True:
+ try_worldstate_update()
+ obey(read_command(), "in file", replay=True)
+
+
+def play_game():
+ """Play game by server input file commands. Before, load save file found.
+
+ If no save file is found, a new world is generated from the commands in the
+ world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
+ command and all that follow via the server input file. Run
+ try_worldstate_update() before each interactive obey()/read_command().
+ """
+ if os.access(io_db["path_save"], os.F_OK):
+ obey_lines_in_file(io_db["path_save"], "save")
+ else:
+ if not os.access(io_db["path_worldconf"], os.F_OK):
+ msg = "No world config file from which to start a new world."
+ raise SystemExit(msg)
+ obey_lines_in_file(io_db["path_worldconf"], "world config ",
+ do_record=True)
+ obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
+ while True:
+ try_worldstate_update()
+ obey(read_command(), "in file", do_record=True)
+
+
+def remake_map():
+ """(Re-)make island map.
+
+ Let "~" represent water, "." land, "X" trees: Build island shape randomly,
+ start with one land cell in the middle, then go into cycle of repeatedly
+ selecting a random sea cell and transforming it into land if it is neighbor
+ to land. The cycle ends when a land cell is due to be created at the map's
+ border. Then put some trees on the map (TODO: more precise algorithm desc).
+ """
+ def is_neighbor(coordinates, type):
+ y = coordinates[0]
+ x = coordinates[1]
+ length = world_db["MAP_LENGTH"]
+ ind = y % 2
+ diag_west = x + (ind > 0)
+ diag_east = x + (ind < (length - 1))
+ pos = (y * length) + x
+ if (y > 0 and diag_east
+ and type == chr(world_db["MAP"][pos - length + ind])) \
+ or (x < (length - 1)
+ and type == chr(world_db["MAP"][pos + 1])) \
+ or (y < (length - 1) and diag_east
+ and type == chr(world_db["MAP"][pos + length + ind])) \
+ or (y > 0 and diag_west
+ and type == chr(world_db["MAP"][pos - length - (not ind)])) \
+ or (x > 0
+ and type == chr(world_db["MAP"][pos - 1])) \
+ or (y < (length - 1) and diag_west
+ and type == chr(world_db["MAP"][pos + length - (not ind)])):
+ return True
+ return False
+ store_seed = rand.seed
+ rand.seed = world_db["SEED_MAP"]
+ world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
+ length = world_db["MAP_LENGTH"]
+ add_half_width = (not (length % 2)) * int(length / 2)
+ world_db["MAP"][int((length ** 2) / 2) + add_half_width] = ord(".")
+ while (1):
+ y = rand.next() % length
+ x = rand.next() % length
+ pos = (y * length) + x
+ if "~" == chr(world_db["MAP"][pos]) and is_neighbor((y, x), "."):
+ if y == 0 or y == (length - 1) or x == 0 or x == (length - 1):
+ break
+ world_db["MAP"][pos] = ord(".")
+ n_trees = int((length ** 2) / 16)
+ i_trees = 0
+ while (i_trees <= n_trees):
+ single_allowed = rand.next() % 32
+ y = rand.next() % length
+ x = rand.next() % length
+ pos = (y * length) + x
+ if "." == chr(world_db["MAP"][pos]) \
+ and ((not single_allowed) or is_neighbor((y, x), "X")):
+ world_db["MAP"][pos] = ord("X")
+ i_trees += 1
+ rand.seed = store_seed
+ # This all-too-precise replica of the original C code misses iter_limit().
+
+
+def update_map_memory(t, age_map=True):
+ """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
+ if not t["T_MEMMAP"]:
+ t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
+ if not t["T_MEMDEPTHMAP"]:
+ t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
+ for pos in range(world_db["MAP_LENGTH"] ** 2):
+ if "v" == chr(t["fovmap"][pos]):
+ t["T_MEMDEPTHMAP"][pos] = ord("0")
+ if " " == chr(t["T_MEMMAP"][pos]):
+ t["T_MEMMAP"][pos] = world_db["MAP"][pos]
+ continue
+ if age_map and ord('0') <= t["T_MEMDEPTHMAP"][pos] \
+ and ord('9') > t["T_MEMDEPTHMAP"][pos] \
+ and not rand.next() % (2 ** (t["T_MEMDEPTHMAP"][pos] - 48)):
+ t["T_MEMDEPTHMAP"][pos] += 1
+ for mt in [mt for mt in t["T_MEMTHING"]
+ if "v" == chr(t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
+ + mt[2]])]:
+ t["T_MEMTHING"].remove(mt)
+ for id in [id for id in world_db["Things"]
+ if not world_db["Things"][id]["carried"]]:
+ type = world_db["Things"][id]["T_TYPE"]
+ if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
+ y = world_db["Things"][id]["T_POSY"]
+ x = world_db["Things"][id]["T_POSX"]
+ if "v" == chr(t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]):
+ t["T_MEMTHING"].append((type, y, x))
+
+
+def set_world_inactive():
+ """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
+ server_test()
+ if os.access(io_db["path_worldstate"], os.F_OK):
+ os.remove(io_db["path_worldstate"])
+ world_db["WORLD_ACTIVE"] = 0
+
+
+def integer_test(val_string, min, max):
+ """Return val_string if possible integer >= min and <= max, else None."""
+ try:
+ val = int(val_string)
+ if val < min or val > max:
+ raise ValueError
+ return val
+ except ValueError:
+ print("Ignoring: Please use integer >= " + str(min) + " and <= " +
+ str(max) + ".")
+ return None
+
+
+def setter(category, key, min, max):
+ """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
+ if category is None:
+ def f(val_string):
+ val = integer_test(val_string, min, max)
+ if None != val:
+ world_db[key] = val
+ else:
+ if category == "Thing":
+ id_store = command_tid
+ decorator = test_Thing_id
+ elif category == "ThingType":
+ id_store = command_ttid
+ decorator = test_ThingType_id
+ elif category == "ThingAction":
+ id_store = command_taid
+ decorator = test_ThingAction_id
+
+ @decorator
+ def f(val_string):
+ val = integer_test(val_string, min, max)
+ if None != val:
+ world_db[category + "s"][id_store.id][key] = val
+ return f
+
+
+def build_fov_map(t):
+ """Build Thing's FOV map."""
+ t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
+ maptype = ctypes.c_char * len(world_db["MAP"])
+ test = libpr.build_fov_map(t["T_POSY"], t["T_POSX"],
+ maptype.from_buffer(t["fovmap"]),
+ maptype.from_buffer(world_db["MAP"]))
+ if test:
+ raise RuntimeError("Malloc error in build_fov_Map().")
+
+
+def decrement_lifepoints(t):
+ """Decrement t's lifepoints by 1, and if to zero, corpse it.
+
+ If t is the player avatar, only blank its fovmap, so that the client may
+ still display memory data. On non-player things, erase fovmap and memory.
+ """
+ t["T_LIFEPOINTS"] -= 1
+ if 0 == t["T_LIFEPOINTS"]:
+ t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
+ if world_db["Things"][0] == t:
+ t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
+ strong_write(io_db["file_out"], "LOG You die.\n")
+ else:
+ t["fovmap"] = False
+ t["T_MEMMAP"] = False
+ t["T_MEMDEPTHMAP"] = False
+ t["T_MEMTHING"] = []
+ strong_write(io_db["file_out"], "LOG It dies.\n")
+
+
+def mv_yx_in_dir_legal(dir, y, x):
+ """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
+ dir_c = dir.encode("ascii")[0]
+ test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
+ if -1 == test:
+ raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
+ return (test, libpr.result_y(), libpr.result_x())
+
+
+def actor_wait(t):
+ """Make t do nothing (but loudly, if player avatar)."""
+ if t == world_db["Things"][0]:
+ strong_write(io_db["file_out"], "LOG You wait.\n")
+
+
+def actor_move(t):
+ """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
+ passable = False
+ move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
+ t["T_POSY"], t["T_POSX"])
+ if 1 == move_result[0]:
+ pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
+ passable = "." == chr(world_db["MAP"][pos])
+ hitted = [id for id in world_db["Things"]
+ if world_db["Things"][id] != t
+ if world_db["Things"][id]["T_LIFEPOINTS"]
+ if world_db["Things"][id]["T_POSY"] == move_result[1]
+ if world_db["Things"][id]["T_POSX"] == move_result[2]]
+ if len(hitted):
+ hit_id = hitted[0]
+ hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
+ hitter = "You" if t == world_db["Things"][0] else hitter_name
+ hitted_type = world_db["Things"][hit_id]["T_TYPE"]
+ hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
+ hitted = "you" if hit_id == 0 else hitted_name
+ verb = " wound " if hitter == "You" else " wounds "
+ strong_write(io_db["file_out"], "LOG " + hitter + verb + hitted +
+ ".\n")
+ decrement_lifepoints(world_db["Things"][hit_id])
+ return
+ dir = [dir for dir in directions_db
+ if directions_db[dir] == chr(t["T_ARGUMENT"])][0]
+ if passable:
+ t["T_POSY"] = move_result[1]
+ t["T_POSX"] = move_result[2]
+ for id in t["T_CARRIES"]:
+ world_db["Things"][id]["T_POSY"] = move_result[1]
+ world_db["Things"][id]["T_POSX"] = move_result[2]
+ build_fov_map(t)
+ if t == world_db["Things"][0]:
+ strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
+ elif t == world_db["Things"][0]:
+ strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
+
+
+def actor_pick_up(t):
+ """Make t pick up (topmost?) Thing from ground into inventory."""
+ # Topmostness is actually not defined so far. Picks Thing with highest ID.
+ ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
+ if not world_db["Things"][id]["carried"]
+ if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
+ if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
+ if len(ids):
+ highest_id = 0
+ for id in ids:
+ if id > highest_id:
+ highest_id = id
+ world_db["Things"][highest_id]["carried"] = True
+ t["T_CARRIES"].append(highest_id)
+ if t == world_db["Things"][0]:
+ strong_write(io_db["file_out"], "LOG You pick up an object.\n")
+ elif t == world_db["Things"][0]:
+ err = "You try to pick up an object, but there is none."
+ strong_write(io_db["file_out"], "LOG " + err + "\n")
+
+
+def actor_drop(t):
+ """Make t rop Thing from inventory to ground indexed by T_ARGUMENT."""
+ # TODO: Handle case where T_ARGUMENT matches nothing.
+ if len(t["T_CARRIES"]):
+ id = t["T_CARRIES"][t["T_ARGUMENT"]]
+ t["T_CARRIES"].remove(id)
+ world_db["Things"][id]["carried"] = False
+ if t == world_db["Things"][0]:
+ strong_write(io_db["file_out"], "LOG You drop an object.\n")
+ elif t == world_db["Things"][0]:
+ err = "You try to drop an object, but you own none."
+ strong_write(io_db["file_out"], "LOG " + err + "\n")
+
+
+def actor_use(t):
+ """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
+ # TODO: Handle case where T_ARGUMENT matches nothing.
+ if len(t["T_CARRIES"]):
+ id = t["T_CARRIES"][t["T_ARGUMENT"]]
+ type = world_db["Things"][id]["T_TYPE"]
+ if world_db["ThingTypes"][type]["TT_CONSUMABLE"]:
+ t["T_CARRIES"].remove(id)
+ del world_db["Things"][id]
+ t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_CONSUMABLE"]
+ if t == world_db["Things"][0]:
+ strong_write(io_db["file_out"],
+ "LOG You consume this object.\n")
+ elif t == world_db["Things"][0]:
+ strong_write(io_db["file_out"],
+ "LOG You try to use this object, but fail.\n")
+ elif t == world_db["Things"][0]:
+ strong_write(io_db["file_out"],
+ "LOG You try to use an object, but you own none.\n")
+
+
+def thingproliferation(t):
+ """To chance of 1/TT_PROLIFERATE, create t offspring in neighbor cell.
+
+ Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be
+ passable and not be inhabited by a Thing of the same type, or, if Thing is
+ animate, any other animate Thing. If there are several map cell candidates,
+ one is selected randomly.
+ """
+ def test_cell(t, y, x):
+ if "." == chr(world_db["MAP"][(y * world_db["MAP_LENGTH"]) + x]):
+ for id in [id for id in world_db["Things"]
+ if y == world_db["Things"][id]["T_POSY"]
+ if x == world_db["Things"][id]["T_POSX"]
+ if (t["T_TYPE"] == world_db["Things"][id]["T_TYPE"])
+ or (t["T_LIFEPOINTS"] and
+ world_db["Things"][id]["T_LIFEPOINTS"])]:
+ return False
+ return True
+ return False
+ prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
+ if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
+ candidates = []
+ for dir in [directions_db[key] for key in directions_db]:
+ mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
+ if mv_result[0] and test_cell(t, mv_result[1], mv_result[2]):
+ candidates.append((mv_result[1], mv_result[2]))
+ if len(candidates):
+ i = rand.next() % len(candidates)
+ id = id_setter(-1, "Things")
+ newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
+ world_db["Things"][id] = newT
+
+
+def try_healing(t):
+ """Grow t's HP to a 1/32 chance if < HP max, satiation > 0, and waiting.
+
+ On success, decrease satiation score by 32.
+ """
+ if t["T_SATIATION"] > 0 \
+ and t["T_LIFEPOINTS"] < \
+ world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] \
+ and 0 == (rand.next() % 31) \
+ and t["T_COMMAND"] == [id for id in world_db["ThingActions"]
+ if world_db["ThingActions"][id]["TA_NAME"] ==
+ "wait"][0]:
+ t["T_LIFEPOINTS"] += 1
+ t["T_SATIATION"] -= 32
+ if t == world_db["Things"][0]:
+ strong_write(io_db["file_out"], "LOG You heal.\n")
+ else:
+ name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
+ strong_write(io_db["file_out"], "LOG " + name + "heals.\n")
+
+
+def hunger(t):
+ """Decrement t's satiation,dependent on it trigger lifepoint dec chance."""
+ if t["T_SATIATION"] > -32768:
+ t["T_SATIATION"] -= 1
+ testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
+ if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
+ raise RuntimeError("A thing that should not hunger is hungering.")
+ stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
+ if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
+ if t == world_db["Things"][0]:
+ strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
+ else:
+ name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
+ strong_write(io_db["file_out"], "LOG " + name +
+ " suffers from hunger.\n")
+ decrement_lifepoints(t)
+
+
+def get_dir_to_target(t, filter):
+ """Try to set T_COMMAND/T_ARGUMENT for move to "filter"-determined target.
+
+ The path-wise nearest target is chosen, via the shortest available path.
+ Target must not be t. On succcess, return positive value, else False.
+ Filters:
+ "a": Thing in FOV is below a certain distance, animate, but of ThingType
+ that is not t's, and starts out weaker than t is; build path as
+ avoiding things of t's ThingType
+ "f": neighbor cell (not inhabited by any animate Thing) further away from
+ animate Thing not further than x steps away and in FOV and of a
+ ThingType that is not t's, and starts out stronger or as strong as t
+ is currently; or (cornered), if no such flight cell, but Thing of
+ above criteria is too near,1 a cell closer to it, or, if less near,
+ just wait
+ "c": Thing in memorized map is consumable
+ "s": memory map cell with greatest-reachable degree of unexploredness
+ """
+
+ def set_map_score(pos, score):
+ test = libpr.set_map_score(pos, score)
+ if test:
+ raise RuntimeError("No score map allocated for set_map_score().")
+
+ def get_map_score(pos):
+ result = libpr.get_map_score(pos)
+ if result < 0:
+ raise RuntimeError("No score map allocated for get_map_score().")
+ return result
+
+ def seeing_thing():
+ if t["fovmap"] and ("a" == filter or "f" == filter):
+ for id in world_db["Things"]:
+ Thing = world_db["Things"][id]
+ if Thing != t and Thing["T_LIFEPOINTS"] and \
+ t["T_TYPE"] != Thing["T_TYPE"] and \
+ 'v' == chr(t["fovmap"][(Thing["T_POSY"]
+ * world_db["MAP_LENGTH"])
+ + Thing["T_POSX"]]):
+ ThingType = world_db["ThingTypes"][Thing["T_TYPE"]]
+ if ("f" == filter and ThingType["TT_LIFEPOINTS"] >=
+ t["T_LIFEPOINTS"]) \
+ or ("a" == filter and ThingType["TT_LIFEPOINTS"] <
+ t["T_LIFEPOINTS"]):
+ return True
+ elif t["T_MEMMAP"] and "c" == filter:
+ for mt in t["T_MEMTHING"]:
+ if ' ' != chr(t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
+ + mt[2]]) \
+ and world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]:
+ return True
+ return False
+
+ def init_score_map():
+ test = libpr.init_score_map()
+ if test:
+ raise RuntimeError("Malloc error in init_score_map().")
+ for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
+ if '.' == chr(t["T_MEMMAP"][i])]:
+ set_map_score(i, 65535 - 1)
+ if "a" == filter:
+ for id in world_db["Things"]:
+ Thing = world_db["Things"][id]
+ pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
+ + Thing["T_POSX"]
+ if t != Thing and Thing["T_LIFEPOINTS"] and \
+ t["T_TYPE"] != Thing["T_TYPE"] and \
+ 'v' == chr(t["fovmap"][pos]) and \
+ t["T_LIFEPOINTS"] > \
+ world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
+ set_map_score(pos, 0)
+ elif t["T_TYPE"] == Thing["T_TYPE"]:
+ set_map_score(pos, 65535)
+ elif "f" == filter:
+ for id in [id for id in world_db["Things"]
+ if world_db["Things"][id]["T_LIFEPOINTS"]]:
+ Thing = world_db["Things"][id]
+ pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
+ + Thing["T_POSX"]
+ if t["T_TYPE"] != Thing["T_TYPE"] and \
+ 'v' == chr(t["fovmap"][pos]) and \
+ t["T_LIFEPOINTS"] <= \
+ world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
+ set_map_score(pos, 0)
+ elif "c" == filter:
+ for mt in [mt for mt in t["T_MEMTHING"]
+ if ' ' != chr(t["T_MEMMAP"][mt[1]
+ * world_db["MAP_LENGTH"]
+ + mt[2]])
+ if world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]]:
+ set_map_score(mt[1] * world_db["MAP_LENGTH"] + mt[2], 0)
+ elif "s" == filter:
+ for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
+ if t["T_MEMDEPTHMAP"][i] == mem_depth_c[0]]:
+ set_map_score(i, 0)
+
+ def rand_target_dir(neighbors, cmp, dirs):
+ candidates = []
+ n_candidates = 0
+ for i in range(len(dirs)):
+ if cmp == neighbors[i]:
+ candidates.append(dirs[i])
+ n_candidates += 1
+ return candidates[rand.next() % n_candidates] if n_candidates else 0
+
+ def get_neighbor_scores(dirs, eye_pos):
+ scores = []
+ if libpr.ready_neighbor_scores(eye_pos):
+ raise RuntimeError("No score map allocated for " +
+ "ready_neighbor_scores.()")
+ for i in range(len(dirs)):
+ scores.append(libpr.get_neighbor_score(i))
+ return scores
+
+ def get_dir_from_neighbors():
+ dir_to_target = False
+ dirs = "edcxsw"
+ eye_pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
+ neighbors = get_neighbor_scores(dirs, eye_pos)
+ if "f" == filter:
+ inhabited = [world_db["Things"][id]["T_POSY"]
+ * world_db["MAP_LENGTH"]
+ + world_db["Things"][id]["T_POSX"]
+ for id in world_db["Things"]
+ if world_db["Things"][id]["T_LIFEPOINTS"]]
+ for i in range(len(dirs)):
+ mv_yx_in_dir_legal(dirs[i], t["T_POSY"], t["T_POSX"])
+ pos_cmp = libpr.result_y() * world_db["MAP_LENGTH"] \
+ + libpr.result_x()
+ for pos in [pos for pos in inhabited if pos == pos_cmp]:
+ neighbors[i] = 65535
+ break
+ minmax_start = 0 if "f" == filter else 65535 - 1
+ minmax_neighbor = minmax_start
+ for i in range(len(dirs)):
+ if ("f" == filter and get_map_score(eye_pos) < neighbors[i] and
+ minmax_neighbor < neighbors[i] and 65535 != neighbors[i]) \
+ or ("f" != filter and minmax_neighbor > neighbors[i]):
+ minmax_neighbor = neighbors[i]
+ if minmax_neighbor != minmax_start:
+ dir_to_target = rand_target_dir(neighbors, minmax_neighbor, dirs)
+ if "f" == filter:
+ if not dir_to_target:
+ if 1 == get_map_score(eye_pos):
+ dir_to_target = rand_target_dir(neighbors, 0, dirs)
+ elif 3 >= get_map_score(eye_pos):
+ t["T_COMMAND"] = [id for id in world_db["ThingActions"]
+ if
+ world_db["ThingActions"][id]["TA_NAME"]
+ == "wait"][0]
+ return 1
+ elif dir_to_target and 3 < get_map_score(eye_pos):
+ dir_to_target = 0
+ elif "a" == filter and 10 <= get_map_score(eye_pos):
+ dir_to_target = 0
+ return dir_to_target
+
+ dir_to_target = False
+ mem_depth_c = b' '
+ run_i = 9 + 1 if "s" == filter else 1
+ while run_i and not dir_to_target and ("s" == filter or seeing_thing()):
+ run_i -= 1
+ init_score_map()
+ mem_depth_c = b'9' if b' ' == mem_depth_c \
+ else bytes([mem_depth_c[0] - 1])
+ if libpr.dijkstra_map():
+ raise RuntimeError("No score map allocated for dijkstra_map().")
+ dir_to_target = get_dir_from_neighbors()
+ libpr.free_score_map()
+ if dir_to_target and str == type(dir_to_target):
+ t["T_COMMAND"] = [id for id in world_db["ThingActions"]
+ if world_db["ThingActions"][id]["TA_NAME"]
+ == "move"][0]
+ t["T_ARGUMENT"] = ord(dir_to_target)
+ return dir_to_target
+
+
+def standing_on_consumable(t):
+ """Return True/False whether t is standing on a consumable."""
+ for id in [id for id in world_db["Things"] if world_db["Things"][id] != t
+ if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
+ if world_db["Things"][id]["T_POSX"] == t["T_POSX"]
+ if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
+ ["TT_CONSUMABLE"]]:
+ return True
+ return False
+
+
+def get_inventory_slot_to_consume(t):
+ """Return slot Id of strongest consumable in t's inventory, else -1."""
+ cmp_consumability = 0
+ selection = -1
+ i = 0
+ for id in t["T_CARRIES"]:
+ type = world_db["Things"][id]["T_TYPE"]
+ if world_db["ThingTypes"][type]["TT_CONSUMABLE"] > cmp_consumability:
+ cmp_consumability = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
+ selection = i
+ i += 1
+ return selection
+
+
+def ai(t):
+ """Determine next command/argment for actor t via AI algorithms.
+
+ AI will look for, and move towards, enemies (animate Things not of their
+ own ThingType); if they see none, they will consume consumables in their
+ inventory; if there are none, they will pick up what they stand on if they
+ stand on consumables; if they stand on none, they will move towards the
+ next consumable they see or remember on the map; if they see or remember
+ none, they will explore parts of the map unseen since ever or for at least
+ one turn; if there is nothing to explore, they will simply wait.
+ """
+ t["T_COMMAND"] = [id for id in world_db["ThingActions"]
+ if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
+ if not get_dir_to_target(t, "f"):
+ sel = get_inventory_slot_to_consume(t)
+ if -1 != sel:
+ t["T_COMMAND"] = [id for id in world_db["ThingActions"]
+ if world_db["ThingActions"][id]["TA_NAME"]
+ == "use"][0]
+ t["T_ARGUMENT"] = sel
+ elif standing_on_consumable(t):
+ t["T_COMMAND"] = [id for id in world_db["ThingActions"]
+ if world_db["ThingActions"][id]["TA_NAME"]
+ == "pick_up"][0]
+ elif (not get_dir_to_target(t, "c")) and \
+ (not get_dir_to_target(t, "a")):
+ get_dir_to_target(t, "s")
+
+
+def turn_over():
+ """Run game world and its inhabitants until new player input expected."""
+ id = 0
+ whilebreaker = False
+ while world_db["Things"][0]["T_LIFEPOINTS"]:
+ for id in [id for id in world_db["Things"]]: # Only what's from start!
+ if not id in world_db["Things"] or \
+ world_db["Things"][id]["carried"]: # May have been consumed or
+ continue # picked up during turn …
+ Thing = world_db["Things"][id]
+ if Thing["T_LIFEPOINTS"]:
+ if not Thing["T_COMMAND"]:
+ update_map_memory(Thing)
+ if 0 == id:
+ whilebreaker = True
+ break
+ ai(Thing)
+ try_healing(Thing)
+ Thing["T_PROGRESS"] += 1
+ taid = [a for a in world_db["ThingActions"]
+ if a == Thing["T_COMMAND"]][0]
+ ThingAction = world_db["ThingActions"][taid]
+ if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
+ eval("actor_" + ThingAction["TA_NAME"])(Thing)
+ Thing["T_COMMAND"] = 0
+ Thing["T_PROGRESS"] = 0
+ hunger(Thing)
+ thingproliferation(Thing)
+ if whilebreaker:
+ break
+ world_db["TURN"] += 1
+
+
+def new_Thing(type, pos=(0, 0)):
+ """Return Thing of type T_TYPE, with fovmap if alive and world active."""
+ thing = {
+ "T_LIFEPOINTS": world_db["ThingTypes"][type]["TT_LIFEPOINTS"],
+ "T_ARGUMENT": 0,
+ "T_PROGRESS": 0,
+ "T_SATIATION": 0,
+ "T_COMMAND": 0,
+ "T_TYPE": type,
+ "T_POSY": pos[0],
+ "T_POSX": pos[1],
+ "T_CARRIES": [],
+ "carried": False,
+ "T_MEMTHING": [],
+ "T_MEMMAP": False,
+ "T_MEMDEPTHMAP": False,
+ "fovmap": False
+ }
+ if world_db["WORLD_ACTIVE"] and thing["T_LIFEPOINTS"]:
+ build_fov_map(thing)
+ return thing
+
+
+def id_setter(id, category, id_store=False, start_at_1=False):
+ """Set ID of object of category to manipulate ID unused? Create new one.
+
+ The ID is stored as id_store.id (if id_store is set). If the integer of the
+ input is valid (if start_at_1, >= 0 and <= 255, else >= -32768 and <=
+ 32767), but <0 or (if start_at_1) <1, calculate new ID: lowest unused ID
+ >=0 or (if start_at_1) >= 1, and <= 255. None is always returned when no
+ new object is created, otherwise the new object's ID.
+ """
+ min = 0 if start_at_1 else -32768
+ max = 255 if start_at_1 else 32767
+ if str == type(id):
+ id = integer_test(id, min, max)
+ if None != id:
+ if id in world_db[category]:
+ if id_store:
+ id_store.id = id
+ return None
+ else:
+ if (start_at_1 and 0 == id) \
+ or ((not start_at_1) and (id < 0 or id > 255)):
+ id = -1
+ while 1:
+ id = id + 1
+ if id not in world_db[category]:
+ break
+ if id > 255:
+ print("Ignoring: "
+ "No unused ID available to add to ID list.")
+ return None
+ if id_store:
+ id_store.id = id
+ return id
+
+
+def command_ping():
+ """Send PONG line to server output file."""
+ strong_write(io_db["file_out"], "PONG\n")
+
+
+def command_quit():
+ """Abort server process."""
+ raise SystemExit("received QUIT command")
+
+
+def command_thingshere(str_y, str_x):
+ """Write to out file list of Things known to player at coordinate y, x."""
+ if world_db["WORLD_ACTIVE"]:
+ y = integer_test(str_y, 0, 255)
+ x = integer_test(str_x, 0, 255)
+ length = world_db["MAP_LENGTH"]
+ if None != y and None != x and y < length and x < length:
+ pos = (y * world_db["MAP_LENGTH"]) + x
+ strong_write(io_db["file_out"], "THINGS_HERE START\n")
+ if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
+ for id in world_db["Things"]:
+ if y == world_db["Things"][id]["T_POSY"] \
+ and x == world_db["Things"][id]["T_POSX"] \
+ and not world_db["Things"][id]["carried"]:
+ type = world_db["Things"][id]["T_TYPE"]
+ name = world_db["ThingTypes"][type]["TT_NAME"]
+ strong_write(io_db["file_out"], name + "\n")
+ else:
+ for mt in world_db["Things"][0]["T_MEMTHING"]:
+ if y == mt[1] and x == mt[2]:
+ name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
+ strong_write(io_db["file_out"], name + "\n")
+ strong_write(io_db["file_out"], "THINGS_HERE END\n")
+ else:
+ print("Ignoring: Invalid map coordinates.")
+ else:
+ print("Ignoring: Command only works on existing worlds.")
+
+
+def play_commander(action, args=False):
+ """Setter for player's T_COMMAND and T_ARGUMENT, then calling turn_over().
+
+ T_ARGUMENT is set to direction char if action=="wait",or 8-bit int if args.
+ """
+
+ def set_command():
+ id = [x for x in world_db["ThingActions"]
+ if world_db["ThingActions"][x]["TA_NAME"] == action][0]
+ world_db["Things"][0]["T_COMMAND"] = id
+ turn_over()
+
+ def set_command_and_argument_int(str_arg):
+ val = integer_test(str_arg, 0, 255)
+ if None != val:
+ world_db["Things"][0]["T_ARGUMENT"] = val
+ set_command()
+
+ def set_command_and_argument_movestring(str_arg):
+ if str_arg in directions_db:
+ world_db["Things"][0]["T_ARGUMENT"] = ord(directions_db[str_arg])
+ set_command()
+ else:
+ print("Ignoring: Argument must be valid direction string.")
+
+ if action == "move":
+ return set_command_and_argument_movestring
+ elif args:
+ return set_command_and_argument_int
+ else:
+ return set_command
+
+
+def command_seedrandomness(seed_string):
+ """Set rand seed to int(seed_string)."""
+ val = integer_test(seed_string, 0, 4294967295)
+ if None != val:
+ rand.seed = val
+
+
+def command_seedmap(seed_string):
+ """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
+ setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
+ remake_map()
+
+
+def command_makeworld(seed_string):
+ """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
+
+ Seed rand with seed, fill it into world_db["SEED_MAP"]. Do more only with a
+ "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType of
+ TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
+ and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
+ according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
+ of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
+ other. Init player's memory map. Write "NEW_WORLD" line to out file.
+ """
+
+ def free_pos():
+ i = 0
+ while 1:
+ err = "Space to put thing on too hard to find. Map too small?"
+ while 1:
+ y = rand.next() % world_db["MAP_LENGTH"]
+ x = rand.next() % world_db["MAP_LENGTH"]
+ if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
+ break
+ i += 1
+ if i == 65535:
+ raise SystemExit(err)
+ # Replica of C code, wrongly ignores animatedness of new Thing.
+ pos_clear = (0 == len([id for id in world_db["Things"]
+ if world_db["Things"][id]["T_LIFEPOINTS"]
+ if world_db["Things"][id]["T_POSY"] == y
+ if world_db["Things"][id]["T_POSX"] == x]))
+ if pos_clear:
+ break
+ return (y, x)
+
+ val = integer_test(seed_string, 0, 4294967295)
+ if None == val:
+ return
+ rand.seed = val
+ world_db["SEED_MAP"] = val
+ player_will_be_generated = False
+ playertype = world_db["PLAYER_TYPE"]
+ for ThingType in world_db["ThingTypes"]:
+ if playertype == ThingType:
+ if 0 < world_db["ThingTypes"][ThingType]["TT_START_NUMBER"]:
+ player_will_be_generated = True
+ break
+ if not player_will_be_generated:
+ print("Ignoring beyond SEED_MAP: " +
+ "No player type with start number >0 defined.")
+ return
+ wait_action = False
+ for ThingAction in world_db["ThingActions"]:
+ if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
+ wait_action = True
+ if not wait_action:
+ print("Ignoring beyond SEED_MAP: " +
+ "No thing action with name 'wait' defined.")
+ return
+ world_db["Things"] = {}
+ remake_map()
+ world_db["WORLD_ACTIVE"] = 1
+ world_db["TURN"] = 1
+ for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
+ id = id_setter(-1, "Things")
+ world_db["Things"][id] = new_Thing(playertype, free_pos())
+ update_map_memory(world_db["Things"][0])
+ for type in world_db["ThingTypes"]:
+ for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
+ if type != playertype:
+ id = id_setter(-1, "Things")
+ world_db["Things"][id] = new_Thing(type, free_pos())
+ strong_write(io_db["file_out"], "NEW_WORLD\n")
+
+
+def command_maplength(maplength_string):
+ """Redefine map length. Invalidate map, therefore lose all things on it."""
+ val = integer_test(maplength_string, 1, 256)
+ if None != val:
+ world_db["MAP_LENGTH"] = val
+ set_world_inactive()
+ world_db["Things"] = {}
+ libpr.set_maplength(val)
+
+
+def command_worldactive(worldactive_string):
+ """Toggle world_db["WORLD_ACTIVE"] if possible.
+
+ An active world can always be set inactive. An inactive world can only be
+ set active with a "wait" ThingAction, and a player Thing (of ID 0). On
+ activation, rebuild all Things' FOVs, and the player's map memory.
+ """
+ # In original version, map existence was also tested (unnecessarily?).
+ val = integer_test(worldactive_string, 0, 1)
+ if val:
+ if 0 != world_db["WORLD_ACTIVE"]:
+ if 0 == val:
+ set_world_inactive()
+ else:
+ print("World already active.")
+ elif 0 == world_db["WORLD_ACTIVE"]:
+ wait_exists = False
+ for ThingAction in world_db["ThingActions"]:
+ if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
+ wait_exists = True
+ break
+ player_exists = False
+ for Thing in world_db["Things"]:
+ if 0 == Thing:
+ player_exists = True
+ break
+ if wait_exists and player_exists:
+ for id in world_db["Things"]:
+ if world_db["Things"][id]["T_LIFEPOINTS"]:
+ build_fov_map(world_db["Things"][id])
+ if 0 == id:
+ update_map_memory(world_db["Things"][id], False)
+ world_db["WORLD_ACTIVE"] = 1
+
+
+def test_for_id_maker(object, category):
+ """Return decorator testing for object having "id" attribute."""
+ def decorator(f):
+ def helper(*args):
+ if hasattr(object, "id"):
+ f(*args)
+ else:
+ print("Ignoring: No " + category +
+ " defined to manipulate yet.")
+ return helper
+ return decorator
+
+
+def command_tid(id_string):
+ """Set ID of Thing to manipulate. ID unused? Create new one.
+
+ Default new Thing's type to the first available ThingType, others: zero.
+ """
+ id = id_setter(id_string, "Things", command_tid)
+ if None != id:
+ if world_db["ThingTypes"] == {}:
+ print("Ignoring: No ThingType to settle new Thing in.")
+ return
+ type = list(world_db["ThingTypes"].keys())[0]
+ world_db["Things"][id] = new_Thing(type)
+
+
+test_Thing_id = test_for_id_maker(command_tid, "Thing")
+
+
+@test_Thing_id
+def command_tcommand(str_int):
+ """Set T_COMMAND of selected Thing."""
+ val = integer_test(str_int, 0, 255)
+ if None != val:
+ if 0 == val or val in world_db["ThingActions"]:
+ world_db["Things"][command_tid.id]["T_COMMAND"] = val
+ else:
+ print("Ignoring: ThingAction ID belongs to no known ThingAction.")
+
+
+@test_Thing_id
+def command_ttype(str_int):
+ """Set T_TYPE of selected Thing."""
+ val = integer_test(str_int, 0, 255)
+ if None != val:
+ if val in world_db["ThingTypes"]:
+ world_db["Things"][command_tid.id]["T_TYPE"] = val
+ else:
+ print("Ignoring: ThingType ID belongs to no known ThingType.")
+
+
+@test_Thing_id
+def command_tcarries(str_int):
+ """Append int(str_int) to T_CARRIES of selected Thing.
+
+ The ID int(str_int) must not be of the selected Thing, and must belong to a
+ Thing with unset "carried" flag. Its "carried" flag will be set on owning.
+ """
+ val = integer_test(str_int, 0, 255)
+ if None != val:
+ if val == command_tid.id:
+ print("Ignoring: Thing cannot carry itself.")
+ elif val in world_db["Things"] \
+ and not world_db["Things"][val]["carried"]:
+ world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
+ world_db["Things"][val]["carried"] = True
+ else:
+ print("Ignoring: Thing not available for carrying.")
+ # Note that the whole carrying structure is different from the C version:
+ # Carried-ness is marked by a "carried" flag, not by Things containing
+ # Things internally.
+
+
+@test_Thing_id
+def command_tmemthing(str_t, str_y, str_x):
+ """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
+
+ The type must fit to an existing ThingType, and the position into the map.
+ """
+ type = integer_test(str_t, 0, 255)
+ posy = integer_test(str_y, 0, 255)
+ posx = integer_test(str_x, 0, 255)
+ if None != type and None != posy and None != posx:
+ if type not in world_db["ThingTypes"] \
+ or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
+ print("Ignoring: Illegal value for thing type or position.")
+ else:
+ memthing = (type, posy, posx)
+ world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
+
+
+def setter_map(maptype):
+ """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
+
+ If Thing has no map of maptype yet, initialize it with ' ' bytes first.
+ """
+ @test_Thing_id
+ def helper(str_int, mapline):
+ val = integer_test(str_int, 0, 255)
+ if None != val:
+ if val >= world_db["MAP_LENGTH"]:
+ print("Illegal value for map line number.")
+ elif len(mapline) != world_db["MAP_LENGTH"]:
+ print("Map line length is unequal map width.")
+ else:
+ length = world_db["MAP_LENGTH"]
+ map = None
+ if not world_db["Things"][command_tid.id][maptype]:
+ map = bytearray(b' ' * (length ** 2))
+ else:
+ map = world_db["Things"][command_tid.id][maptype]
+ map[val * length:(val * length) + length] = mapline.encode()
+ world_db["Things"][command_tid.id][maptype] = map
+ return helper
+
+
+def setter_tpos(axis):
+ """Generate setter for T_POSX or T_POSY of selected Thing.
+
+ If world is active, rebuilds animate things' fovmap, player's memory map.
+ """
+ @test_Thing_id
+ def helper(str_int):
+ val = integer_test(str_int, 0, 255)
+ if None != val:
+ if val < world_db["MAP_LENGTH"]:
+ world_db["Things"][command_tid.id]["T_POS" + axis] = val
+ if world_db["WORLD_ACTIVE"] \
+ and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
+ build_fov_map(world_db["Things"][command_tid.id])
+ if 0 == command_tid.id:
+ update_map_memory(world_db["Things"][command_tid.id])
+ else:
+ print("Ignoring: Position is outside of map.")
+ return helper
+
+
+def command_ttid(id_string):
+ """Set ID of ThingType to manipulate. ID unused? Create new one.
+
+ Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
+ """
+ id = id_setter(id_string, "ThingTypes", command_ttid)
+ if None != id:
+ world_db["ThingTypes"][id] = {
+ "TT_NAME": "(none)",
+ "TT_CONSUMABLE": 0,
+ "TT_LIFEPOINTS": 0,
+ "TT_PROLIFERATE": 0,
+ "TT_START_NUMBER": 0,
+ "TT_SYMBOL": "?",
+ "TT_CORPSE_ID": id
+ }
+
+
+test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
+
+
+@test_ThingType_id
+def command_ttname(name):
+ """Set TT_NAME of selected ThingType."""
+ world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
+
+
+@test_ThingType_id
+def command_ttsymbol(char):
+ """Set TT_SYMBOL of selected ThingType. """
+ if 1 == len(char):
+ world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
+ else:
+ print("Ignoring: Argument must be single character.")
+
+
+@test_ThingType_id
+def command_ttcorpseid(str_int):
+ """Set TT_CORPSE_ID of selected ThingType."""
+ val = integer_test(str_int, 0, 255)
+ if None != val:
+ if val in world_db["ThingTypes"]:
+ world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
+ else:
+ print("Ignoring: Corpse ID belongs to no known ThignType.")
+
+
+def command_taid(id_string):
+ """Set ID of ThingAction to manipulate. ID unused? Create new one.
+
+ Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
+ """
+ id = id_setter(id_string, "ThingActions", command_taid, True)
+ if None != id:
+ world_db["ThingActions"][id] = {
+ "TA_EFFORT": 1,
+ "TA_NAME": "wait"
+ }
+
+
+test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
+
+
+@test_ThingAction_id
+def command_taname(name):
+ """Set TA_NAME of selected ThingAction.
+
+ The name must match a valid thing action function. If after the name
+ setting no ThingAction with name "wait" remains, call set_world_inactive().
+ """
+ if name == "wait" or name == "move" or name == "use" or name == "drop" \
+ or name == "pick_up":
+ world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
+ if 1 == world_db["WORLD_ACTIVE"]:
+ wait_defined = False
+ for id in world_db["ThingActions"]:
+ if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
+ wait_defined = True
+ break
+ if not wait_defined:
+ set_world_inactive()
+ else:
+ print("Ignoring: Invalid action name.")
+ # In contrast to the original,naming won't map a function to a ThingAction.
+
+
+def command_ai():
+ """Call ai() on player Thing, then turn_over()."""
+ ai(world_db["Things"][0])
+ turn_over()
+
+
+"""Commands database.
+
+Map command start tokens to ([0]) number of expected command arguments, ([1])
+the command's meta-ness (i.e. is it to be written to the record file, is it to
+be ignored in replay mode if read from server input file), and ([2]) a function
+to be called on it.
+"""
+commands_db = {
+ "QUIT": (0, True, command_quit),
+ "PING": (0, True, command_ping),
+ "THINGS_HERE": (2, True, command_thingshere),
+ "MAKE_WORLD": (1, False, command_makeworld),
+ "SEED_MAP": (1, False, command_seedmap),
+ "SEED_RANDOMNESS": (1, False, command_seedrandomness),
+ "TURN": (1, False, setter(None, "TURN", 0, 65535)),
+ "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0, 255)),
+ "MAP_LENGTH": (1, False, command_maplength),
+ "WORLD_ACTIVE": (1, False, command_worldactive),
+ "TA_ID": (1, False, command_taid),
+ "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
+ "TA_NAME": (1, False, command_taname),
+ "TT_ID": (1, False, command_ttid),
+ "TT_NAME": (1, False, command_ttname),
+ "TT_SYMBOL": (1, False, command_ttsymbol),
+ "TT_CORPSE_ID": (1, False, command_ttcorpseid),
+ "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
+ 0, 65535)),
+ "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
+ 0, 255)),
+ "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
+ 0, 255)),
+ "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
+ "T_ID": (1, False, command_tid),
+ "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
+ "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
+ "T_LIFEPOINTS": (1, False, setter("Thing", "T_LIFEPOINTS", 0, 255)),
+ "T_SATIATION": (1, False, setter("Thing", "T_SATIATION", -32768, 32767)),
+ "T_COMMAND": (1, False, command_tcommand),
+ "T_TYPE": (1, False, command_ttype),
+ "T_CARRIES": (1, False, command_tcarries),
+ "T_MEMMAP": (2, False, setter_map("T_MEMMAP")),
+ "T_MEMDEPTHMAP": (2, False, setter_map("T_MEMDEPTHMAP")),
+ "T_MEMTHING": (3, False, command_tmemthing),
+ "T_POSY": (1, False, setter_tpos("Y")),
+ "T_POSX": (1, False, setter_tpos("X")),
+ "wait": (0, False, play_commander("wait")),
+ "move": (1, False, play_commander("move")),
+ "pick_up": (0, False, play_commander("pick_up")),
+ "drop": (1, False, play_commander("drop", True)),
+ "use": (1, False, play_commander("use", True)),
+ "ai": (0, False, command_ai)
+}
+
+
+"""World state database. With sane default values. (Randomness is in rand.)"""
+world_db = {
+ "TURN": 0,
+ "MAP_LENGTH": 64,
+ "SEED_MAP": 0,
+ "PLAYER_TYPE": 0,
+ "WORLD_ACTIVE": 0,
+ "ThingActions": {},
+ "ThingTypes": {},
+ "Things": {}
+}
+
+"""Mapping of direction names to internal direction chars."""
+directions_db = {"east": "d", "south-east": "c", "south-west": "x",
+ "west": "s", "north-west": "w", "north-east": "e"}
+
+"""File IO database."""
+io_db = {
+ "path_save": "save",
+ "path_record": "record",
+ "path_worldconf": "confserver/world",
+ "path_server": "server/",
+ "path_in": "server/in",
+ "path_out": "server/out",
+ "path_worldstate": "server/worldstate",
+ "tmp_suffix": "_tmp",
+ "kicked_by_rival": False,
+ "worldstate_updateable": False
+}
-def cleanup_server_io(io_db):
- """Close and remove all files in IO files DB."""
- io_db["file_out"].close()
- os.remove(io_db["path_out"])
- io_db["file_in"].close()
- os.remove(io_db["path_in"])
- if "file_worldstate" in io_db: # This file is only set up
- io_db["file_worldstate"].close() # properly when the game
- if os.access(io_db["path_worldstate"], os.F_OK): # world is active, which is
- os.remove(io_db["path_worldstate"]) # not guaranteed.
-io_db = {}
try:
- print("DUMMY: Obey command-line arguments.")
- print("DUMMY: Open files.")
- setup_server_io(io_db)
- print("DUMMY: Run game.")
+ libpr = prep_library()
+ rand = RandomnessIO()
+ opts = parse_command_line_arguments()
+ setup_server_io()
+ if None != opts.replay:
+ replay_game()
+ else:
+ play_game()
+except SystemExit as exit:
+ print("ABORTING: " + exit.args[0])
except:
- print("SOMETHING WENT WRONG\n")
+ print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
raise
finally:
- cleanup_server_io(io_db)
- print("DUMMY: (Clean up C heap.)")
+ cleanup_server_io()