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[plomrogue] / server / commands.py
1 # This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
2 # or any later version. For details on its copyright, license, and warranties,
3 # see the file NOTICE in the root directory of the PlomRogue source package.
4
5
6 from server.config.world_data import world_db
7 from server.config.io import io_db
8 from server.io import log, strong_write 
9 from server.utils import integer_test, id_setter
10 from server.world import set_world_inactive, turn_over
11 from server.update_map_memory import update_map_memory
12 from server.build_fov_map import build_fov_map
13
14
15 def command_plugin(str_plugin):
16     """Run code in plugins/[str_plugin]."""
17     import os
18     if (str_plugin.replace("_", "").isalnum()
19         and os.access("plugins/server/" + str_plugin + ".py", os.F_OK)):
20         exec(open("plugins/server/" + str_plugin + ".py").read())
21         world_db["PLUGIN"] += [str_plugin]
22         return
23     print("Bad plugin name:", str_plugin)
24
25
26 def command_ping():
27     """Send PONG line to server output file."""
28     strong_write(io_db["file_out"], "PONG\n")
29
30
31 def command_quit():
32     """Abort server process."""
33     from server.io import save_world, atomic_write
34     from server.utils import opts
35     if None == opts.replay:
36         if world_db["WORLD_ACTIVE"]:
37             save_world()
38         atomic_write(io_db["path_record"], io_db["record_chunk"],
39             do_append=True)
40     raise SystemExit("received QUIT command")
41
42
43 def command_thingshere(str_y, str_x):
44     """Write to out file list of Things known to player at coordinate y, x."""
45     if world_db["WORLD_ACTIVE"]:
46         y = integer_test(str_y, 0, 255)
47         x = integer_test(str_x, 0, 255)
48         length = world_db["MAP_LENGTH"]
49         if None != y and None != x and y < length and x < length:
50             pos = (y * world_db["MAP_LENGTH"]) + x
51             strong_write(io_db["file_out"], "THINGS_HERE START\n")
52             terrain = chr(world_db["Things"][0]["T_MEMMAP"][pos])
53             terrain_name = world_db["terrain_names"][terrain]
54             strong_write(io_db["file_out"], "terrain: " + terrain_name + "\n")
55             if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
56                 for id in [id for tid in sorted(list(world_db["ThingTypes"]))
57                               for id in world_db["Things"]
58                               if not world_db["Things"][id]["carried"]
59                               if world_db["Things"][id]["T_TYPE"] == tid
60                               if pos == world_db["Things"][id]["pos"]]:
61                     type = world_db["Things"][id]["T_TYPE"]
62                     name = world_db["ThingTypes"][type]["TT_NAME"]
63                     strong_write(io_db["file_out"], name + "\n")
64             else:
65                 for mt in [mt for tid in sorted(list(world_db["ThingTypes"]))
66                               for mt in world_db["Things"][0]["T_MEMTHING"]
67                               if mt[0] == tid if y == mt[1] if x == mt[2]]:
68                     name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
69                     strong_write(io_db["file_out"], name + "\n")
70             strong_write(io_db["file_out"], "THINGS_HERE END\n")
71         else:
72             print("Ignoring: Invalid map coordinates.")
73     else:
74         print("Ignoring: Command only works on existing worlds.")
75
76
77 def command_seedrandomness(seed_string):
78     """Set rand seed to int(seed_string)."""
79     from server.utils import rand
80     val = integer_test(seed_string, 0, 4294967295)
81     if None != val:
82         rand.seed = val
83
84
85 def command_makeworld(seed_string):
86     """Call make_world()."""
87     val = integer_test(seed_string, 0, 4294967295)
88     if None != val:
89         from server.make_world import make_world
90         make_world(val)
91
92
93 def command_maplength(maplength_string):
94     """Redefine map length. Invalidate map, therefore lose all things on it."""
95     val = integer_test(maplength_string, 1, 256)
96     if None != val:
97         from server.utils import libpr
98         world_db["MAP_LENGTH"] = val
99         world_db["MAP"] = False
100         set_world_inactive()
101         world_db["Things"] = {}
102         libpr.set_maplength(val)
103
104
105 def command_worldactive(worldactive_string):
106     """Toggle world_db["WORLD_ACTIVE"] if possible.
107
108     An active world can always be set inactive. An inactive world can only be
109     set active with a "wait" ThingAction, and a player Thing (of ID 0), and a
110     map. On activation, rebuild all Things' FOVs, and the player's map memory.
111     """
112     val = integer_test(worldactive_string, 0, 1)
113     if None != val:
114         if 0 != world_db["WORLD_ACTIVE"]:
115             if 0 == val:
116                 set_world_inactive()
117             else:
118                 print("World already active.")
119         elif 0 == world_db["WORLD_ACTIVE"]:
120             for ThingAction in world_db["ThingActions"]:
121                 if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
122                     break
123             else:
124                 print("Ignored: No wait action defined for world to activate.")
125                 return
126             for Thing in world_db["Things"]:
127                 if 0 == Thing:
128                     break
129             else:
130                 print("Ignored: No player defined for world to activate.")
131                 return
132             if not world_db["MAP"]:
133                 print("Ignoring: No map defined for world to activate.")
134                 return
135             from server.config.commands import command_worldactive_test_hook
136             if not command_worldactive_test_hook():
137                 return
138             for tid in world_db["Things"]:
139                 if world_db["Things"][tid]["T_LIFEPOINTS"]:
140                     build_fov_map(world_db["Things"][tid])
141                     if 0 == tid:
142                         update_map_memory(world_db["Things"][tid], False)
143             if not world_db["Things"][0]["T_LIFEPOINTS"]:
144                 empty_fovmap = bytearray(b" " * world_db["MAP_LENGTH"] ** 2)
145                 world_db["Things"][0]["fovmap"] = empty_fovmap
146             world_db["WORLD_ACTIVE"] = 1
147
148
149 def command_tid(id_string):
150     """Set ID of Thing to manipulate. ID unused? Create new one.
151
152     Default new Thing's type to the first available ThingType, others: zero.
153     """
154     tid = id_setter(id_string, "Things", command_tid)
155     if None != tid:
156         if world_db["ThingTypes"] == {}:
157             print("Ignoring: No ThingType to settle new Thing in.")
158             return
159         ty = list(world_db["ThingTypes"].keys())[0]
160         from server.new_thing import new_Thing
161         world_db["Things"][tid] = new_Thing(ty)
162
163
164 def command_ttid(id_string):
165     """Set ID of ThingType to manipulate. ID unused? Create new one.
166
167     Set new type's TT_CORPSE_ID to self, other fields to thingtype_defaults.
168     """
169     ttid = id_setter(id_string, "ThingTypes", command_ttid)
170     if None != ttid:
171         from server.config.world_data import thingtype_defaults
172         world_db["ThingTypes"][ttid] = {}
173         for key in thingtype_defaults:
174             world_db["ThingTypes"][ttid][key] = thingtype_defaults[key]
175         world_db["ThingTypes"][ttid]["TT_CORPSE_ID"] = ttid
176
177
178 def command_taid(id_string):
179     """Set ID of ThingAction to manipulate. ID unused? Create new one.
180
181     Default new ThingAction's TA_EFFORT to 1, its TA_NAME to "wait".
182     """
183     taid = id_setter(id_string, "ThingActions", command_taid, True)
184     if None != taid:
185         world_db["ThingActions"][taid] = {
186             "TA_EFFORT": 1,
187             "TA_NAME": "wait"
188         }
189
190
191 def test_for_id_maker(object, category):
192     """Return decorator testing for object having "id" attribute."""
193     def decorator(f):
194         def helper(*args):
195             if hasattr(object, "id"):
196                 f(*args)
197             else:
198                 print("Ignoring: No " + category +
199                       " defined to manipulate yet.")
200         return helper
201     return decorator
202
203
204 test_Thing_id = test_for_id_maker(command_tid, "Thing")
205 test_ThingType_id = test_for_id_maker(command_ttid, "ThingType")
206 test_ThingAction_id = test_for_id_maker(command_taid, "ThingAction")
207
208
209 @test_Thing_id
210 def command_tcommand(str_int):
211     """Set T_COMMAND of selected Thing."""
212     val = integer_test(str_int, 0)
213     if None != val:
214         if 0 == val or val in world_db["ThingActions"]:
215             world_db["Things"][command_tid.id]["T_COMMAND"] = val
216         else:
217             print("Ignoring: ThingAction ID belongs to no known ThingAction.")
218
219
220 @test_Thing_id
221 def command_ttype(str_int):
222     """Set T_TYPE of selected Thing."""
223     val = integer_test(str_int, 0)
224     if None != val:
225         if val in world_db["ThingTypes"]:
226             world_db["Things"][command_tid.id]["T_TYPE"] = val
227         else:
228             print("Ignoring: ThingType ID belongs to no known ThingType.")
229
230
231 @test_Thing_id
232 def command_tcarries(str_int):
233     """Append int(str_int) to T_CARRIES of selected Thing.
234
235     The ID int(str_int) must not be of the selected Thing, and must belong to a
236     Thing with unset "carried" flag. Its "carried" flag will be set on owning.
237     """
238     val = integer_test(str_int, 0)
239     if None != val:
240         if val == command_tid.id:
241             print("Ignoring: Thing cannot carry itself.")
242         elif val in world_db["Things"] \
243                 and not world_db["Things"][val]["carried"]:
244             world_db["Things"][command_tid.id]["T_CARRIES"].append(val)
245             world_db["Things"][val]["carried"] = True
246         else:
247             print("Ignoring: Thing not available for carrying.")
248     # Note that the whole carrying structure is different from the C version:
249     # Carried-ness is marked by a "carried" flag, not by Things containing
250     # Things internally.
251
252
253 @test_Thing_id
254 def command_tmemthing(str_t, str_y, str_x):
255     """Add (int(str_t), int(str_y), int(str_x)) to selected Thing's T_MEMTHING.
256
257     The type must fit to an existing ThingType, and the position into the map.
258     """
259     type = integer_test(str_t, 0)
260     posy = integer_test(str_y, 0, 255)
261     posx = integer_test(str_x, 0, 255)
262     if None != type and None != posy and None != posx:
263         if type not in world_db["ThingTypes"] \
264            or posy >= world_db["MAP_LENGTH"] or posx >= world_db["MAP_LENGTH"]:
265             print("Ignoring: Illegal value for thing type or position.")
266         else:
267             memthing = (type, posy, posx)
268             world_db["Things"][command_tid.id]["T_MEMTHING"].append(memthing)
269
270
271 @test_ThingType_id
272 def command_ttname(name):
273     """Set TT_NAME of selected ThingType."""
274     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
275
276
277 @test_ThingType_id
278 def command_tttool(name):
279     """Set TT_TOOL of selected ThingType."""
280     world_db["ThingTypes"][command_ttid.id]["TT_TOOL"] = name
281
282
283 @test_ThingType_id
284 def command_ttsymbol(char):
285     """Set TT_SYMBOL of selected ThingType. """
286     if 1 == len(char):
287         world_db["ThingTypes"][command_ttid.id]["TT_SYMBOL"] = char
288     else:
289         print("Ignoring: Argument must be single character.")
290
291
292 @test_ThingType_id
293 def command_ttcorpseid(str_int):
294     """Set TT_CORPSE_ID of selected ThingType."""
295     val = integer_test(str_int, 0)
296     if None != val:
297         if val in world_db["ThingTypes"]:
298             world_db["ThingTypes"][command_ttid.id]["TT_CORPSE_ID"] = val
299         else:
300             print("Ignoring: Corpse ID belongs to no known ThignType.")
301
302
303 @test_ThingAction_id
304 def command_taname(name):
305     """Set TA_NAME of selected ThingAction.
306
307     The name must match a valid thing action function. If after the name
308     setting no ThingAction with name "wait" remains, call set_world_inactive().
309     """
310     if name == "wait" or name == "move" or name == "use" or name == "drop" \
311        or name == "pickup":
312         world_db["ThingActions"][command_taid.id]["TA_NAME"] = name
313         if 1 == world_db["WORLD_ACTIVE"]:
314             for id in world_db["ThingActions"]:
315                 if "wait" == world_db["ThingActions"][id]["TA_NAME"]:
316                     break
317             else:
318                 set_world_inactive()
319     else:
320         print("Ignoring: Invalid action name.")
321
322
323 def setter(category, key, min, max=None):
324     """Build setter for world_db([category + "s"][id])[key] to >=min/<=max."""
325     if category is None:
326         def f(val_string):
327             val = integer_test(val_string, min, max)
328             if None != val:
329                 world_db[key] = val
330     else:
331         if category == "Thing":
332             id_store = command_tid
333             decorator = test_Thing_id
334         elif category == "ThingType":
335             id_store = command_ttid
336             decorator = test_ThingType_id
337         elif category == "ThingAction":
338             id_store = command_taid
339             decorator = test_ThingAction_id
340
341         @decorator
342         def f(val_string):
343             val = integer_test(val_string, min, max)
344             if None != val:
345                 world_db[category + "s"][id_store.id][key] = val
346     return f
347
348
349 def setter_map(maptype):
350     """Set (world or Thing's) map of maptype's int(str_int)-th line to mapline.
351
352     If no map of maptype exists yet, initialize it with ' ' bytes first.
353     """
354
355     def valid_map_line(str_int, mapline):
356         val = integer_test(str_int, 0, 255)
357         if None != val:
358             if val >= world_db["MAP_LENGTH"]:
359                 print("Illegal value for map line number.")
360             elif len(mapline) != world_db["MAP_LENGTH"]:
361                 print("Map line length is unequal map width.")
362             else:
363                 return val
364         return None
365
366     def nonThingMap_helper(str_int, mapline):
367         val = valid_map_line(str_int, mapline)
368         if None != val:
369             length = world_db["MAP_LENGTH"]
370             if not world_db["MAP"]:
371                 map = bytearray(b' ' * (length ** 2))
372             else:
373                 map = world_db["MAP"]
374             map[val * length:(val * length) + length] = mapline.encode()
375             if not world_db["MAP"]:
376                 world_db["MAP"] = map
377
378     @test_Thing_id
379     def ThingMap_helper(str_int, mapline):
380         val = valid_map_line(str_int, mapline)
381         if None != val:
382             length = world_db["MAP_LENGTH"]
383             if not world_db["Things"][command_tid.id][maptype]:
384                 map = bytearray(b' ' * (length ** 2))
385             else:
386                 map = world_db["Things"][command_tid.id][maptype]
387             map[val * length:(val * length) + length] = mapline.encode()
388             if not world_db["Things"][command_tid.id][maptype]:
389                 world_db["Things"][command_tid.id][maptype] = map
390
391     return nonThingMap_helper if maptype == "MAP" else ThingMap_helper
392
393
394
395 def setter_tpos(axis):
396     """Generate setter for T_POSX or  T_POSY of selected Thing.
397
398     If world is active, rebuilds animate things' fovmap, player's memory map.
399     """
400     @test_Thing_id
401     def helper(str_int):
402         val = integer_test(str_int, 0, 255)
403         if None != val:
404             if val < world_db["MAP_LENGTH"]:
405                 t = world_db["Things"][command_tid.id]
406                 t["T_POS" + axis] = val
407                 t["pos"] = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
408                 if world_db["WORLD_ACTIVE"] \
409                    and world_db["Things"][command_tid.id]["T_LIFEPOINTS"]:
410                     build_fov_map(world_db["Things"][command_tid.id])
411                     if 0 == command_tid.id:
412                         update_map_memory(world_db["Things"][command_tid.id])
413             else:
414                 print("Ignoring: Position is outside of map.")
415     return helper
416
417
418 def set_command(action):
419     """Set player's T_COMMAND, then call turn_over()."""
420     id = [x for x in world_db["ThingActions"]
421           if world_db["ThingActions"][x]["TA_NAME"] == action][0]
422     world_db["Things"][0]["T_COMMAND"] = id
423     turn_over()
424
425
426 def play_wait():
427     """Try "wait" as player's T_COMMAND."""
428     set_command("wait")
429
430
431 def action_exists(action):
432     matching_actions = [x for x in world_db["ThingActions"]
433                         if world_db["ThingActions"][x]["TA_NAME"] == action]
434     if len(matching_actions) >= 1:
435         return True
436     print("No appropriate ThingAction defined.")
437     return False
438
439
440 def play_pickup():
441     """Try "pickup" as player's T_COMMAND"."""
442     if action_exists("pickup"):
443         t = world_db["Things"][0]
444         ids = [tid for tid in world_db["Things"] if tid
445                if not world_db["Things"][tid]["carried"]
446                if world_db["Things"][tid]["pos"] == t["pos"]]
447         from server.config.commands import play_pickup_attempt_hook
448         if not len(ids):
449              log("NOTHING to pick up.")
450         elif play_pickup_attempt_hook(t):
451             set_command("pickup")
452
453
454 def play_drop(str_arg):
455     """Try "drop" as player's T_COMMAND, int(str_arg) as T_ARGUMENT / slot."""
456     if action_exists("drop"):
457         t = world_db["Things"][0]
458         if 0 == len(t["T_CARRIES"]):
459             log("You have NOTHING to drop in your inventory.")
460         else:
461             val = integer_test(str_arg, 0, 255)
462             if None != val and val < len(t["T_CARRIES"]):
463                 world_db["Things"][0]["T_ARGUMENT"] = val
464                 set_command("drop")
465             else:
466                 print("Illegal inventory index.")
467
468
469 def play_use(str_arg):
470     """Try "use" as player's T_COMMAND, int(str_arg) as T_ARGUMENT / slot."""
471     if action_exists("use"):
472         t = world_db["Things"][0]
473         if 0 == len(t["T_CARRIES"]):
474             log("You have NOTHING to use in your inventory.")
475         else:
476             val = integer_test(str_arg, 0, 255)
477             if None != val and val < len(t["T_CARRIES"]):
478                 tid = t["T_CARRIES"][val]
479                 tt = world_db["ThingTypes"][world_db["Things"][tid]["T_TYPE"]]
480                 from server.config.commands import play_use_attempt_hook
481                 hook_test = play_use_attempt_hook(t, tt)
482                 if not (tt["TT_TOOL"] == "food" or hook_test):
483                     if hook_test != False:
484                         log("You CAN'T use this thing.")
485                     return
486                 world_db["Things"][0]["T_ARGUMENT"] = val
487                 set_command("use")
488             else:
489                 print("Illegal inventory index.")
490
491
492 def play_move(str_arg):
493     """Try "move" as player's T_COMMAND, str_arg as T_ARGUMENT / direction."""
494     if action_exists("move"):
495         from server.config.world_data import directions_db, symbols_passable
496         t = world_db["Things"][0]
497         if not str_arg in directions_db:
498             print("Illegal move direction string.")
499             return
500         d = ord(directions_db[str_arg])
501         from server.utils import mv_yx_in_dir_legal
502         move_result = mv_yx_in_dir_legal(chr(d), t["T_POSY"], t["T_POSX"])
503         if 1 == move_result[0]:
504             pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
505             if ord("~") == world_db["MAP"][pos]:
506                 log("You can't SWIM.")
507                 return
508             from server.config.commands import play_move_attempt_hook
509             if play_move_attempt_hook(t, d, pos):
510                 return
511             if chr(world_db["MAP"][pos]) in symbols_passable:
512                 world_db["Things"][0]["T_ARGUMENT"] = d
513                 set_command("move")
514                 return
515         log("You CAN'T move there.")
516
517
518 def command_ai():
519     """Call ai() on player Thing, then turn_over()."""
520     from server.ai import ai
521     ai(world_db["Things"][0])
522     turn_over()