plomlompom.com Git - plomrogue/blob - roguelike-client

   1 #!/usr/bin/python3
   2
   3 import curses
   4 import math
   5 import os
   6 import signal
   7 import time
   8
   9
  10 def set_window_geometries():
  11
  12     def set_window_size():
  13         win["size"], win["start"] = [0, 0], [0, 0]
  14         win["size"][0] = win["config"][0]
  15         if (win["config"][0] == 0):
  16             win["size"][0] = screen_size[0] - sep_size
  17         elif (win["config"][0] < 0):
  18             win["size"][0] = screen_size[0] + win["config"][0] - sep_size
  19         win["size"][1] = win["config"][1]
  20         if (win["config"][1] == 0):
  21             win["size"][1] = screen_size[1]
  22         elif (win["config"][1] < 0):
  23             win["size"][1] = screen_size[1] + win["config"][1]
  24
  25     def place_window():
  26         win_i = windows.index(win)
  27
  28         # If win is first window, it goes into the top left corner.
  29         win["start"][0] = 0 + sep_size
  30         win["start"][1] = 0
  31         if (win_i > 0):
  32
  33             # If not, get win's closest predecessor starting a new stack on the
  34             # screen top,fit win's top left to that win_top's top right corner.
  35             win_top = None
  36             for i in range(win_i - 1, -1, -1):
  37                 win_top = windows[i]
  38                 if (win_top["start"][0] == 0 + sep_size):
  39                     break
  40             win["start"][1] = win_top["start"][1] + win_top["size"][1] \
  41                 + sep_size
  42
  43             # If enough space is found below win's predecessor, fit win's top
  44             # left corner to that predecessor's bottom left corner.
  45             win_prev = windows[win_i - 1]
  46             next_free_y = win_prev["start"][0] + win_prev["size"][0] + sep_size
  47             if (win["size"][1] <= win_prev["size"][1] and
  48                     win["size"][0] <= screen_size[0] - next_free_y):
  49                 win["start"][1] = win_prev["start"][1]
  50                 win["start"][0] = next_free_y
  51
  52             # If that fails, try to fit win's top left corner to the top right
  53             # corner of its closest predecessor win_test 1) below win_top (see
  54             # above) 2) and with enough space open to its right between its
  55             # right edge and the lower edge of a win_high located directly
  56             # above win_test to fit win there (without growing further to the
  57             # right than win_high does or surpassing the screen's lower edge).
  58             else:
  59                 win_test = win_prev
  60                 win_high = None
  61                 while (win_test != win_top):
  62                     for i in range(win_i - 2, -1, -1):
  63                         win_high = windows[i]
  64                         if win_test["start"][0] > win_high["start"][0]:
  65                             break
  66                     next_free_y = win_high["start"][0] + win_high["size"][0] \
  67                         + sep_size
  68                     first_free_x = win_test["start"][1] + win_test["size"][1] \
  69                         + sep_size
  70                     last_free_x = win_high["start"][1] + win_high["size"][1]
  71                     if (win["size"][0] <= screen_size[0] - next_free_y and
  72                             win["size"][1] <= last_free_x - first_free_x):
  73                         win["start"][1] = first_free_x
  74                         win["start"][0] = next_free_y
  75                         break
  76                     win_test = win_high
  77
  78     global screen_size, stdscr
  79     curses.endwin()
  80     stdscr = curses.initscr()
  81     screen_size = stdscr.getmaxyx()
  82     for win in windows:
  83         set_window_size()
  84         place_window()
  85     cursed_main.redraw = True
  86
  87
  88 def draw_screen():
  89
  90     def healthy_addch(y, x, char, attr=0):
  91         """Workaround for <http://stackoverflow.com/questions/7063128/>."""
  92         if y == screen_size[0] - 1 and x == screen_size[1] - 1:
  93             char_before = stdscr.inch(y, x - 1)
  94             stdscr.addch(y, x - 1, char, attr)
  95             stdscr.insstr(y, x - 1, " ")
  96             stdscr.addch(y, x - 1, char_before)
  97         else:
  98             stdscr.addch(y, x, char, attr)
  99
 100     def draw_window_border_lines():
 101         for win in windows:
 102             for k in range(2):
 103                 j = win["start"][int(k == 0)] - sep_size
 104                 if (j >= 0 and j < screen_size[int(k == 0)]):
 105                     start = win["start"][k]
 106                     end = win["start"][k] + win["size"][k]
 107                     end = end if end < screen_size[k] else screen_size[k]
 108                     if k:
 109                         [healthy_addch(j, i, '-') for i in range(start, end)]
 110                     else:
 111                         [healthy_addch(i, j, '|') for i in range(start, end)]
 112
 113     def draw_window_border_corners():
 114         for win in windows:
 115             up = win["start"][0] - sep_size
 116             down = win["start"][0] + win["size"][0]
 117             left = win["start"][1] - sep_size
 118             right = win["start"][1] + win["size"][1]
 119             if (up >= 0 and up < screen_size[0]):
 120                 if (left >= 0 and left < screen_size[1]):
 121                     healthy_addch(up, left, '+')
 122                 if (right >= 0 and right < screen_size[1]):
 123                     healthy_addch(up, right, '+')
 124             if (down >= 0 and down < screen_size[0]):
 125                 if (left >= 0 and left < screen_size[1]):
 126                     healthy_addch(down, left, '+')
 127                 if (right >= 0 and right < screen_size[1]):
 128                     healthy_addch(down, right, '+')
 129
 130     def draw_window_titles():
 131         for win in windows:
 132             title = " " + win["title"] + " "
 133             if len(title) <= win["size"][1]:
 134                 y = win["start"][0] - 1
 135                 start_x = win["start"][1] + int((win["size"][1] \
 136                     - len(title))/2)
 137                 for x in range(len(title)):
 138                     healthy_addch(y, start_x + x, title[x])
 139
 140     def draw_window_contents():
 141         def draw_winmap():
 142             """Draw winmap in area delimited by offset, winmap_size.
 143
 144             The individuall cell of a winmap is interpreted as either a single
 145             character element, or as a tuple of character and attribute,
 146             depending on the size len(cell) spits out.
 147             """
 148             stop = [0, 0]
 149             for i in range(2):
 150                 stop[i] = win["size"][i] + offset[i]
 151                 if stop[i] >= winmap_size[i]:
 152                     stop[i] = winmap_size[i]
 153             for y in range(offset[0], stop[0]):
 154                 for x in range(offset[1], stop[1]):
 155                     cell = winmap[y * winmap_size[1] + x]
 156                     attr = 0
 157                     if len(cell) > 1:
 158                         attr = cell[1]
 159                         cell = cell[0]
 160                     y_in_screen = win["start"][0] + (y - offset[0])
 161                     x_in_screen = win["start"][1] + (x - offset[1])
 162                     if (y_in_screen < screen_size[0]
 163                             and x_in_screen < screen_size[1]):
 164                         healthy_addch(y_in_screen, x_in_screen, cell, attr)
 165         def draw_scroll_hints():
 166             def draw_scroll_string(n_lines_outside):
 167                 hint = ' ' + str(n_lines_outside + 1) + ' more ' + unit + ' '
 168                 if len(hint) <= win["size"][ni]:
 169                     non_hint_space = win["size"][ni] - len(hint)
 170                     hint_offset = int(non_hint_space / 2)
 171                     for j in range(win["size"][ni] - non_hint_space):
 172                         pos_2 = win["start"][ni] + hint_offset + j
 173                         x, y = (pos_2, pos_1) if ni else (pos_1, pos_2)
 174                         healthy_addch(y, x, hint[j], curses.A_REVERSE)
 175             def draw_scroll_arrows(ar1, ar2):
 176                 for j in range(win["size"][ni]):
 177                     pos_2 = win["start"][ni] + j
 178                     x, y = (pos_2, pos_1) if ni else (pos_1, pos_2)
 179                     healthy_addch(y, x, ar1 if ni else ar2, curses.A_REVERSE)
 180             for i in range(2):
 181                 ni = int(i == 0)
 182                 unit = 'rows' if ni else 'columns'
 183                 if (offset[i] > 0):
 184                     pos_1 = win["start"][i]
 185                     draw_scroll_arrows('^', '<')
 186                     draw_scroll_string(offset[i])
 187                 if (winmap_size[i] > offset[i] + win["size"][i]):
 188                     pos_1 = win["start"][i] + win["size"][i] - 1
 189                     draw_scroll_arrows('v', '>')
 190                     draw_scroll_string(winmap_size[i] - offset[i]
 191                         - win["size"][i])
 192         for win in windows:
 193             offset, winmap_size, winmap = win["func"]()
 194             draw_winmap()
 195             draw_scroll_hints()
 196
 197     stdscr.erase()
 198     draw_window_border_lines()
 199     draw_window_border_corners()
 200     draw_window_titles()
 201     draw_window_contents()
 202     stdscr.refresh()
 203
 204
 205 def read_worldstate():
 206     if not os.access(io["path_worldstate"], os.F_OK):
 207         msg = "No world state file found at " + io["path_worldstate"] + "."
 208         raise SystemExit(msg)
 209     read_anew = False
 210     worldstate_file = open(io["path_worldstate"], "r")
 211     turn_string = worldstate_file.readline()
 212     if int(turn_string) != world_data["turn"]:
 213         read_anew = True
 214     if not read_anew: # In rare cases, world may change, but not turn number.
 215         mtime = os.stat(io["path_worldstate"])
 216         if mtime != read_worldstate.last_checked_mtime:
 217             read_worldstate.last_checked_mtime = mtime
 218             read_anew = True
 219     if read_anew:
 220         cursed_main.redraw = True
 221         world_data["turn"] = int(turn_string)
 222         world_data["lifepoints"] = int(worldstate_file.readline())
 223         world_data["satiation"] = int(worldstate_file.readline())
 224         world_data["inventory"] = []
 225         while True:
 226             line = worldstate_file.readline().replace("\n", "")
 227             if line == '%':
 228                 break
 229             world_data["inventory"] += [line]
 230         world_data["avatar_position"][0] = int(worldstate_file.readline())
 231         world_data["avatar_position"][1] = int(worldstate_file.readline())
 232         if not world_data["look_mode"]:
 233             world_data["map_center"][0] = world_data["avatar_position"][0]
 234             world_data["map_center"][1] = world_data["avatar_position"][1]
 235         world_data["map_size"] = int(worldstate_file.readline())
 236         world_data["fov_map"] = ""
 237         for i in range(world_data["map_size"]):
 238             line = worldstate_file.readline().replace("\n", "")
 239             world_data["fov_map"] += line
 240         world_data["mem_map"] = ""
 241         for i in range(world_data["map_size"]):
 242             line = worldstate_file.readline().replace("\n", "")
 243             world_data["mem_map"] += line
 244     worldstate_file.close()
 245 read_worldstate.last_checked_mtime = -1
 246
 247
 248 def read_message_queue():
 249     while (len(message_queue["messages"]) > 1
 250         or (len(message_queue["messages"]) == 1
 251             and not message_queue["open_end"])):
 252         message = message_queue["messages"].pop(0)
 253         if message == "THINGS_HERE START":
 254             read_message_queue.parse_thingshere = True
 255             world_data["look"] = []
 256         elif message == "THINGS_HERE END":
 257             read_message_queue.parse_thingshere = False
 258             if world_data["look"] == []:
 259                 world_data["look"] = ["(none known)"]
 260             cursed_main.redraw = True
 261         elif read_message_queue.parse_thingshere:
 262             world_data["look"] += [message]
 263         elif message[0:4] == "LOG ":
 264             world_data["log"] += [message[4:]]
 265             cursed_main.redraw = True
 266         elif message == "WORLD_UPDATED":
 267             query_mapcell()
 268 read_message_queue.parse_thingshere = False
 269
 270
 271 def query_mapcell():
 272    command_sender("THINGS_HERE " + str(world_data["map_center"][0]) + " "
 273         + str(world_data["map_center"][1]))()
 274    world_data["look"] = ["(polling)"]
 275
 276
 277 def cursed_main(stdscr):
 278
 279     def ping_test():
 280         half_wait_time = 5
 281         if len(new_data_from_server) > 0:
 282             ping_test.sent = False
 283         elif ping_test.wait_start + half_wait_time < time.time():
 284             if not ping_test.sent:
 285                 io["file_out"].write("PING\n")
 286                 io["file_out"].flush()
 287                 ping_test.sent = True
 288                 ping_test.wait_start = time.time()
 289             elif ping_test.sent:
 290                 raise SystemExit("Server not answering anymore.")
 291     ping_test.wait_start = 0
 292
 293     def read_into_message_queue():
 294         if new_data_from_server == "":
 295             return
 296         new_open_end = False
 297         if new_data_from_server[-1] is not "\n":
 298             new_open_end = True
 299         new_messages = new_data_from_server.splitlines()
 300         if message_queue["open_end"]:
 301             message_queue["messages"][-1] += new_messages[0]
 302             del new_messages[0]
 303         message_queue["messages"] += new_messages
 304         if new_open_end:
 305             message_queue["open_end"] = True
 306
 307     curses.noecho()
 308     curses.curs_set(False)
 309     signal.signal(signal.SIGWINCH,
 310         lambda ignore_1, ignore_2: set_window_geometries())
 311     set_window_geometries()
 312     delay = 1
 313     while True:
 314         stdscr.timeout(int(delay))
 315         delay = delay * 1.1 if delay < 1000 else delay
 316         if cursed_main.redraw:
 317             delay = 1
 318             draw_screen()
 319             cursed_main.redraw = False
 320         char = stdscr.getch()
 321         if char >= 0:
 322             char = chr(char)
 323             if char in commands:
 324                 if len(commands[char]) == 1 or not world_data["look_mode"]:
 325                     commands[char][0]()
 326                     cursed_main.redraw = True
 327                 else:
 328                     commands[char][1]()
 329                     cursed_main.redraw = True
 330         new_data_from_server = io["file_in"].read()
 331         ping_test()
 332         read_into_message_queue()
 333         read_worldstate()
 334         read_message_queue()
 335
 336
 337 def win_map():
 338     win_size = next(win["size"] for win in windows if win["func"] == win_map)
 339     offset = [0, 0]
 340     for i in range(2):
 341         if world_data["map_center"][i] * (i + 1) > win_size[i] / 2 and \
 342                 win_size[i] < world_data["map_size"] * (i + 1):
 343             if world_data["map_center"][i] * (i + 1) \
 344                 < world_data["map_size"] * (i + 1) - win_size[i] / 2:
 345                 offset[i] = world_data["map_center"][i] * (i + 1) \
 346                     - int(win_size[i] / 2)
 347                 if i == 1:
 348                     offset[1] = offset[1] + world_data["map_center"][0] % 2
 349             else:
 350                 offset[i] = world_data["map_size"] * (i + 1) - win_size[i] + i
 351     winmap_size = [world_data["map_size"], world_data["map_size"] * 2 + 1]
 352     winmap = []
 353     curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_BLUE)
 354     curses.init_pair(2, curses.COLOR_BLUE, curses.COLOR_BLACK)
 355     for y in range(world_data["map_size"]):
 356         for x in range(world_data["map_size"]):
 357             char = world_data["fov_map"][y * world_data["map_size"] + x]
 358             if world_data["look_mode"] and y == world_data["map_center"][0] \
 359                     and x == world_data["map_center"][1]:
 360                 if char == " ":
 361                     char = \
 362                         world_data["mem_map"][y * world_data["map_size"] + x]
 363                 winmap += [(char, curses.A_REVERSE), (" ", curses.A_REVERSE)]
 364                 continue
 365             if char == " ":
 366                 char = world_data["mem_map"][y * world_data["map_size"] + x]
 367                 attribute = curses.color_pair(1) if char == " " \
 368                     else curses.color_pair(2)
 369                 winmap += [(char, attribute), (" ", attribute)]
 370             else:
 371                 winmap += char + " "
 372         if y % 2 == 0:
 373             winmap += "  "
 374     return offset, winmap_size, winmap
 375
 376
 377 def win_inventory():
 378     win_size = next(win["size"] for win in windows
 379                                 if win["func"] == win_inventory)
 380     winmap = []
 381     winmap_size = [0, win_size[1]]
 382     for line in world_data["inventory"]:
 383         winmap_size[1] = winmap_size[1] if len(line) <= winmap_size[1] \
 384             else len(line)
 385     count = 0
 386     for line in world_data["inventory"]:
 387         padding_size = winmap_size[1] - len(line)
 388         line += (" " * padding_size)
 389         if count == world_data["inventory_selection"]:
 390             line_new = []
 391             for x in range(len(line)):
 392                 line_new += [(line[x], curses.A_REVERSE)]
 393             line = line_new
 394         winmap += line
 395         winmap_size[0] = winmap_size[0] + 1
 396         count += 1
 397     offset = [0, 0]
 398     if world_data["inventory_selection"] > win_size[0]/2:
 399         if world_data["inventory_selection"] < len(world_data["inventory"]) \
 400             - win_size[0]/2:
 401             offset[0] = world_data["inventory_selection"] - int(win_size[0]/2)
 402         else:
 403             offset[0] = len(world_data["inventory"]) - win_size[0]
 404     return offset, winmap_size, winmap
 405
 406
 407 def win_look():
 408     winmap = ""
 409     winmap_size = [0, 0]
 410     for line in world_data["look"]:
 411         winmap_size[1] = winmap_size[1] if len(line) <= winmap_size[1] \
 412             else len(line)
 413     for line in world_data["look"]:
 414         padding_size = winmap_size[1] - len(line)
 415         winmap += line + (" " * padding_size)
 416         winmap_size[0] = winmap_size[0] + 1
 417     offset = [world_data["look_scroll"], 0]
 418     return offset, winmap_size, winmap
 419
 420
 421 def win_info():
 422     winmap = "T: " + str(world_data["turn"]) \
 423         + " H: " + str(world_data["lifepoints"]) \
 424         + " S: " + str(world_data["satiation"])
 425     winmap_size = [1, len(winmap)]
 426     offset = [0, 0]
 427     return offset, winmap_size, winmap
 428
 429
 430 def win_log():
 431     win_size = next(win["size"] for win in windows if win["func"] == win_log)
 432     offset = [0, 0]
 433     winmap = ""
 434     number_of_lines = 0
 435     for line in world_data["log"]:
 436         number_of_lines += math.ceil(len(line) / win_size[1])
 437         padding_size = win_size[1] - (len(line) % win_size[1])
 438         winmap += line + (padding_size * " ")
 439     if number_of_lines < win_size[0]:
 440         winmap = (" " * win_size[1] * (win_size[0] - number_of_lines)) + winmap
 441         number_of_lines = win_size[0]
 442     elif number_of_lines > win_size[0]:
 443         offset[0] = number_of_lines - win_size[0]
 444     winmap_size = [number_of_lines, win_size[1]]
 445     return offset, winmap_size, winmap
 446
 447
 448 def command_quit():
 449     command_sender("QUIT")()
 450     raise SystemExit("Received QUIT command, forwarded to server, leaving.")
 451
 452
 453 def command_toggle_look_mode():
 454     if not world_data["look_mode"]:
 455         world_data["look_mode"] = True
 456     else:
 457         world_data["look_mode"] = False
 458         world_data["map_center"] = world_data["avatar_position"]
 459         query_mapcell()
 460
 461
 462 def command_sender(string, int_field=None):
 463     def command_send():
 464         int_string = ""
 465         if int_field:
 466             int_string = " " + str(world_data[int_field])
 467         io["file_out"].write(string + int_string + "\n")
 468         io["file_out"].flush()
 469     return command_send
 470
 471
 472 def command_looker(string):
 473     def command_look():
 474         if string == "west" \
 475                 and world_data["map_center"][1] > 0:
 476             world_data["map_center"][1] -= 1
 477         elif string == "east" \
 478                 and world_data["map_center"][1] < world_data["map_size"] - 1:
 479             world_data["map_center"][1] += 1
 480         else:
 481             y_unevenness = world_data["map_center"][0] % 2
 482             y_evenness = int(not(y_unevenness))
 483             if string[6:] == "west" and \
 484                     world_data["map_center"][1] > -y_unevenness:
 485                 if string[:5] == "north" and world_data["map_center"][0] > 0:
 486                     world_data["map_center"][0] -= 1
 487                     world_data["map_center"][1] -= y_evenness
 488                 if string[:5] == "south" and world_data["map_center"][0] \
 489                         < world_data["map_size"] - 1:
 490                     world_data["map_center"][0] += 1
 491                     world_data["map_center"][1] -= y_evenness
 492             elif string[6:] == "east" and world_data["map_center"][1] \
 493                     < world_data["map_size"] - y_unevenness:
 494                 if string[:5] == "north" and world_data["map_center"][0] > 0:
 495                     world_data["map_center"][0] -= 1
 496                     world_data["map_center"][1] += y_unevenness
 497                 if string[:5] == "south" and world_data["map_center"][0] \
 498                         < world_data["map_size"] - 1:
 499                     world_data["map_center"][0] += 1
 500                     world_data["map_center"][1] += y_unevenness
 501         query_mapcell()
 502     return command_look
 503
 504
 505 def command_look_scroller(string):
 506     def command_look_scroll():
 507         win_size = next(win["size"] for win in windows
 508                                     if win["func"] == win_look)
 509         if string == "up" and world_data["look_scroll"] > 0:
 510             world_data["look_scroll"] -= 1
 511         elif string == "down" and world_data["look_scroll"] \
 512                 < len(world_data["look"]) - win_size[0]:
 513             world_data["look_scroll"] += 1
 514     return command_look_scroll
 515
 516
 517 def command_inventory_selector(string):
 518     def command_inventory_select():
 519         if string == "up" and world_data["inventory_selection"] > 0:
 520             world_data["inventory_selection"] -= 1
 521         elif string == "down" and world_data["inventory_selection"] \
 522                 < len(world_data["inventory"]) - 1:
 523             world_data["inventory_selection"] += 1
 524     return command_inventory_select
 525
 526
 527 windows = [
 528     {"config": [1, 33], "func": win_info, "title": "Info"},
 529     {"config": [-7, 33], "func": win_log, "title": "Log"},
 530     {"config": [4, 16], "func": win_inventory, "title": "Inventory"},
 531     {"config": [4, 16], "func": win_look, "title": "Things here"},
 532     {"config": [0, -34], "func": win_map, "title": "Map"}
 533 ]
 534 io = {
 535     "path_out": "server/in",
 536     "path_in": "server/out",
 537     "path_worldstate": "server/worldstate"
 538 }
 539 commands = {
 540     "A": (command_sender("ai"),),
 541     "D": (command_sender("drop", "inventory_selection"),),
 542     "J": (command_look_scroller("down"),),
 543     "K": (command_look_scroller("up"),),
 544     "P": (command_sender("pick_up"),),
 545     "Q": (command_quit,),
 546     "U": (command_sender("use", "inventory_selection"),),
 547     "W": (command_sender("wait"),),
 548     "c": (command_sender("move south-east"), command_looker("south-east")),
 549     "d": (command_sender("move east"), command_looker("east")),
 550     "e": (command_sender("move north-east"), command_looker("north-east")),
 551     "j": (command_inventory_selector("down"),),
 552     "k": (command_inventory_selector("up"),),
 553     "l": (command_toggle_look_mode,),
 554     "s": (command_sender("move west"), command_looker("west")),
 555     "w": (command_sender("move north-west"), command_looker("north-west")),
 556     "x": (command_sender("move south-west"), command_looker("south-west")),
 557 }
 558 message_queue = {
 559     "open_end": False,
 560     "messages": []
 561 }
 562 world_data = {
 563     "avatar_position": [-1, -1],
 564     "fov_map": "",
 565     "inventory": [],
 566     "inventory_selection": 0,
 567     "lifepoints": -1,
 568     "look": [],
 569     "look_mode": False,
 570     "look_scroll": 0,
 571     "log": [
 572 "QUICK COMMAND OVERVIEW: "
 573 "Move through map with 'w', 'e', 's', 'd', 'x', 'c'. "
 574 "Pick up things with 'P', drop a thing selected from the inventory with 'D' "
 575 "or use it with 'P'. "
 576 "Move through inventory selection with 'j' and 'k'. "
 577 "Toggle looking around mode with 'l'. "
 578 "Scroll 'Things here' window with 'J' and 'K'. "
 579 "Let AI decide next move with 'A'. "
 580 "Quit with 'Q'. ",
 581 "STATS OVERVIEW: "
 582 "'T': Turn; 'H': Health (the higher, the better); "
 583 "'S': Satiation (the closer to zero, the better).",
 584 "See README file for more help."
 585 ],
 586     "map_center": [-1, -1],
 587     "map_size": 0,
 588     "mem_map": "",
 589     "satiation": -1,
 590     "turn": -1
 591 }
 592 sep_size = 1  # Width of inter-window borders and title bars.
 593 stdscr = None
 594 screen_size = [0,0]
 595
 596
 597 try:
 598     if (not os.access(io["path_out"], os.F_OK)):
 599         msg = "No server input file found at " + io["path_out"] + "."
 600         raise SystemExit(msg)
 601     io["file_out"] = open(io["path_out"], "a")
 602     io["file_in"] = open(io["path_in"], "r")
 603     curses.wrapper(cursed_main)
 604 except SystemExit as exit:
 605     print("ABORTING: " + exit.args[0])
 606 except:
 607     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
 608     raise
 609 finally:
 610     if "file_out" in io:
 611         io["file_out"].close()
 612     if "file_in" in io:
 613         io["file_in"].close()