X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=plomrogue%2Fthings.py;h=ca9dcb16a895baa1550eec3e5ba1616a0b7b2e46;hb=2a7e3040d58b1d7dcddf64378bfd1abd8d7ded7c;hp=b757157d99cef4375f344ec0038f83599503cae6;hpb=6cb3a857a09ae974bf0f510dfa94fb19fba2ce31;p=plomrogue2

diff --git a/plomrogue/things.py b/plomrogue/things.py
index b757157..ca9dcb1 100644
--- a/plomrogue/things.py
+++ b/plomrogue/things.py
@@ -1,10 +1,13 @@
-from plomrogue.errors import GameError
-from plomrogue.mapping import YX
+from plomrogue.errors import GameError, PlayError
+from plomrogue.mapping import YX, FovMap
+from plomrogue.misc import quote
+import random
 
 
 
 class ThingBase:
     type_ = '?'
+    carrying = False
 
     def __init__(self, game, id_=0, position=(YX(0, 0), YX(0, 0))):
         self.game = game
@@ -17,9 +20,16 @@ class ThingBase:
 
 
 class Thing(ThingBase):
-    blocking = False
+    blocks_movement = False
+    blocks_sound = False
+    blocks_light = False
     portable = False
     protection = '.'
+    commandable = False
+    cookable = False
+    carried = False
+    consumable = False
+    sittable = False
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -35,6 +45,77 @@ class Thing(ThingBase):
     def get_type(cls):
         return cls.__name__[len('Thing_'):]
 
+    def sound(self, name, msg):
+        from plomrogue.mapping import DijkstraMap
+        import re
+
+        def lower_msg_by_volume(msg, volume, largest_audible_distance,
+                                url_limits = []):
+            factor = largest_audible_distance / 2
+            lowered_msg = ''
+            in_url = False
+            i = 0
+            for c in msg:
+                c = c
+                if i in url_limits:
+                    in_url = False if in_url else True
+                if not in_url:
+                    while random.random() > volume * factor:
+                        if c.isupper():
+                            c = c.lower()
+                        elif c != '.' and c != ' ':
+                            c = '.'
+                        else:
+                            c = ' '
+                lowered_msg += c
+                i += 1
+            return lowered_msg
+
+        largest_audible_distance = 20
+        obstacles = [t.position for t in self.game.things if t.blocks_sound]
+        targets = [t.position for t in self.game.things if t.type_ == 'Player']
+        sound_blockers = self.game.get_sound_blockers()
+        dijkstra_map = DijkstraMap(targets, sound_blockers, obstacles,
+                                   self.game.maps, self.position,
+                                   largest_audible_distance, self.game.get_map)
+        url_limits = []
+        for m in re.finditer('https?://[^\s]+', msg):
+            url_limits += [m.start(), m.end()]
+        for c_id in self.game.sessions:
+            listener = self.game.get_player(c_id)
+            target_yx = dijkstra_map.target_yx(*listener.position, True)
+            if not target_yx:
+                continue
+            listener_distance = dijkstra_map[target_yx]
+            if listener_distance > largest_audible_distance:
+                continue
+            volume = 1 / max(1, listener_distance)
+            lowered_msg = lower_msg_by_volume(msg, volume,
+                                              largest_audible_distance,
+                                              url_limits)
+            lowered_nick = lower_msg_by_volume(name, volume,
+                                               largest_audible_distance)
+            symbol = ''
+            # if listener.fov_test(self.position[0], self.position[1]):
+            # TODO: We might want to only show chat faces of players that are
+            # in the listener's FOV.  However, if we do a fov_test here,
+            # this might set up a listener._fov where previously there was None,
+            # with ._fov = None serving to Game.send_gamestate() as an indicator
+            # that map view data for listener might be subject to change and
+            # therefore needs to be re-sent.  If we generate an un-set ._fov
+            # here, this inhibits send_gamestate() from sending new map view
+            # data to listener.  We need to re-structure this whole process
+            # if we want to use a FOV test on listener here.
+            if listener_distance < largest_audible_distance / 2:
+                self.game.io.send('CHATFACE %s' % self.id_, c_id)
+                if self.type_ == 'Player' and hasattr(self, 'thing_char'):
+                    symbol = '/@' + self.thing_char
+            self.game.io.send('CHAT ' +
+                              quote('vol:%.f%s %s%s: %s' % (volume * 100, '%',
+                                                            lowered_nick, symbol,
+                                                            lowered_msg)),
+                              c_id)
+
 
 
 class Thing_Item(Thing):
@@ -49,11 +130,8 @@ class ThingSpawner(Thing):
     def proceed(self):
         for t in [t for t in self.game.things
                   if t != self and t.position == self.position]:
-            return
-        t = self.game.thing_types[self.child_type](self.game,
-                                                   position=self.position)
-        self.game.things += [t]
-        self.game.changed = True
+            return None
+        return self.game.add_thing(self.child_type, self.position)
 
 
 
@@ -71,81 +149,463 @@ class Thing_SpawnPoint(Thing):
     symbol_hint = 's'
     portable = True
     name = 'username'
+    temporary = False
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.created_at = datetime.datetime.now()
+
+    def proceed(self):
+        super().proceed()
+        if self.temporary and datetime.datetime.now() >\
+           self.created_at + datetime.timedelta(minutes=10):
+            self.game.remove_thing(self)
+
+
+
+class ThingInstallable(Thing):
+    portable = True
+    installable = True
+
+    def install(self):
+        self.portable = False
+
+    def uninstall(self):
+        self.portable = True
+
+
+
+class Thing_SignSpawner(ThingSpawner):
+    child_type = 'Sign'
+
+
+
+class Thing_Sign(ThingInstallable):
+    symbol_hint = '?'
+    design_size = YX(16, 36)
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.design = 'x' * self.design_size.y * self.design_size.x
 
 
 
 class Thing_DoorSpawner(ThingSpawner):
     child_type = 'Door'
 
+    def proceed(self):
+        door = super().proceed()
+        if door:
+            key = self.game.add_thing('DoorKey', self.position)
+            key.door = door
 
 
-class Thing_Door(Thing):
-    symbol_hint = 'D'
-    blocking = False
+
+class Thing_DoorKey(Thing):
     portable = True
+    symbol_hint = 'k'
+
+
+
+
+class Thing_Door(ThingInstallable):
+    symbol_hint = 'D'
+    blocks_movement = False
+    locked = False
 
     def open(self):
-        self.blocking = False
-        self.portable = True
+        self.blocks_movement = False
+        self.blocks_light = False
+        self.blocks_sound = False
+        self.locked = False
         del self.thing_char
 
     def close(self):
-        self.blocking = True
-        self.portable = False
+        self.blocks_movement = True
+        self.blocks_light = True
+        self.blocks_sound = True
         self.thing_char = '#'
 
+    def lock(self):
+        self.locked = True
+        self.thing_char = 'L'
+
+
+
+class Thing_Psychedelic(Thing):
+    symbol_hint = 'P'
+    portable = True
+    cookable = True
+    consumable = True
+
+
+
+class Thing_PsychedelicSpawner(ThingSpawner):
+    symbol_hint = 'P'
+    child_type = 'Psychedelic'
 
 
-class ThingAnimate(Thing):
-    blocking = True
+
+class Thing_Bottle(Thing):
+    symbol_hint = 'B'
+    portable = True
+    full = True
+    thing_char = '~'
+    spinnable = True
+    cookable = True
+    consumable = True
+
+    def empty(self):
+        self.thing_char = '_'
+        self.full = False
+
+    def spin(self):
+        all_players = [t for t in self.game.things if t.type_ == 'Player']
+        # TODO: refactor with ThingPlayer.prepare_multiprocessible_fov_stencil
+        # and ThingPlayer.fov_test
+        fov_radius = 12
+        light_blockers = self.game.get_light_blockers()
+        obstacles = [t.position for t in self.game.things if t.blocks_light]
+        fov = FovMap(light_blockers, obstacles, self.game.maps,
+                     self.position, fov_radius, self.game.get_map)
+        fov.init_terrain()
+        visible_players = []
+        for p in all_players:
+            test_position = fov.target_yx(p.position[0], p.position[1])
+            if fov.inside(test_position) and fov[test_position] == '.':
+                visible_players += [p]
+        if len(visible_players) == 0:
+            self.sound('BOTTLE', 'no visible players in spin range')
+        pick = random.choice(visible_players)
+        self.sound('BOTTLE', 'BOTTLE picks: ' + pick.name)
+
+
+
+class Thing_BottleSpawner(ThingSpawner):
+    child_type = 'Bottle'
+
+
+
+class Thing_Hat(Thing):
+    symbol_hint = 'H'
+    portable = True
+    design = ' +--+ ' + ' |  | ' + '======'
+    spinnable = True
+    cookable = True
+    design_size = YX(3, 6)
+
+    def spin(self):
+        new_design = ''
+        new_design += self.design[12]
+        new_design += self.design[13]
+        new_design += self.design[6]
+        new_design += self.design[7]
+        new_design += self.design[0]
+        new_design += self.design[1]
+        new_design += self.design[14]
+        new_design += self.design[15]
+        new_design += self.design[8]
+        new_design += self.design[9]
+        new_design += self.design[2]
+        new_design += self.design[3]
+        new_design += self.design[16]
+        new_design += self.design[17]
+        new_design += self.design[10]
+        new_design += self.design[11]
+        new_design += self.design[4]
+        new_design += self.design[5]
+        self.design = ''.join(new_design)
+
+
+
+class Thing_HatRemixer(Thing):
+    symbol_hint = 'H'
+
+    def accept(self, hat):
+        import string
+        new_design = ''
+        legal_chars = string.ascii_letters + string.digits + string.punctuation + ' '
+        for i in range(18):
+            new_design += random.choice(list(legal_chars))
+        hat.design = new_design
+        self.sound('HAT REMIXER', 'remixing a hat …')
+        self.game.changed = True
+        self.game.record_change(self.position, 'other')
+
+
+
+import datetime
+class Thing_MusicPlayer(Thing):
+    symbol_hint = 'R'
+    commandable = True
+    portable = True
+    repeat = True
+    next_song_start = datetime.datetime.now()
+    playlist_index = -1
+    playing = True
+    cookable = True
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        self.next_tasks = []
-        self.set_task('WAIT')
-        self._fov = None
+        self.next_song_start = datetime.datetime.now()
+        self.playlist = []
 
-    def set_task(self, task_name, args=()):
-        task_class = self.game.tasks[task_name]
-        self.task = task_class(self, args)
-        self.task.check()  # will throw GameError if necessary
+    def proceed(self):
+        if (not self.playing) or len(self.playlist) == 0:
+            return
+        if datetime.datetime.now() > self.next_song_start:
+            self.playlist_index += 1
+            if self.playlist_index == len(self.playlist):
+                self.playlist_index = 0
+                if not self.repeat:
+                    self.playing = False
+                    return
+            song_data = self.playlist[self.playlist_index]
+            self.next_song_start = datetime.datetime.now() +\
+                datetime.timedelta(seconds=song_data[1])
+            self.sound('MUSICPLAYER', song_data[0])
+            self.game.changed = True
+
+    def interpret(self, command):
+        msg_lines = []
+        if command == 'HELP':
+            msg_lines += ['available commands:']
+            msg_lines += ['HELP – show this help']
+            msg_lines += ['ON/OFF – toggle playback on/off']
+            msg_lines += ['REWIND – return to start of playlist']
+            msg_lines += ['LIST – list programmed item, durations']
+            msg_lines += ['REMOVE – remove current item']
+            msg_lines += ['SKIP – to skip to next item']
+            msg_lines += ['REPEAT – toggle playlist repeat on/off']
+            msg_lines += ['ADD LENGTH ITEM – add ITEM to playlist, with LENGTH in format "minutes:seconds" (something like "0:47" or "11:02")']
+            return msg_lines
+        elif command == 'LIST':
+            msg_lines += ['playlist:']
+            i = 0
+            for entry in self.playlist:
+                minutes = entry[1] // 60
+                seconds = entry[1] % 60
+                if seconds < 10:
+                    seconds = '0%s' % seconds
+                selector = 'next:' if i == self.playlist_index else '     '
+                msg_lines += ['%s %s:%s – %s' % (selector, minutes, seconds, entry[0])]
+                i += 1
+            return msg_lines
+        elif command == 'ON/OFF':
+            self.playing = False if self.playing else True
+            self.game.changed = True
+            if self.playing:
+                return ['playing']
+            else:
+                return ['paused']
+        elif command == 'REMOVE':
+            if len(self.playlist) == 0:
+                return ['playlist already empty']
+            del self.playlist[max(0, self.playlist_index)]
+            self.playlist_index -= 1
+            if self.playlist_index < -1:
+                self.playlist_index = -1
+            self.game.changed = True
+            return ['removed song']
+        elif command == 'REWIND':
+            self.playlist_index = -1
+            self.next_song_start = datetime.datetime.now()
+            self.game.changed = True
+            return ['back at start of playlist']
+        elif command == 'SKIP':
+            self.next_song_start = datetime.datetime.now()
+            self.game.changed = True
+            return ['skipped']
+        elif command == 'REPEAT':
+            self.repeat = False if self.repeat else True
+            self.game.changed = True
+            if self.repeat:
+                return ['playlist repeat turned on']
+            else:
+                return ['playlist repeat turned off']
+        elif command.startswith('ADD '):
+            tokens = command.split(' ', 2)
+            if len(tokens) != 3:
+                return ['wrong syntax, see HELP']
+            length = tokens[1].split(':')
+            if len(length) != 2:
+                return ['wrong syntax, see HELP']
+            try:
+                minutes = int(length[0])
+                seconds = int(length[1])
+            except ValueError:
+                return ['wrong syntax, see HELP']
+            self.playlist += [(tokens[2], minutes * 60 + seconds)]
+            self.game.changed = True
+            return ['added']
+        else:
+            return ['cannot understand command']
+
+
+
+class Thing_BottleDeposit(Thing):
+    bottle_counter = 0
+    symbol_hint = 'b'
+
+    def proceed(self):
+        if self.bottle_counter >= 3:
+            self.bottle_counter = 0
+            choice = random.choice(['MusicPlayer', 'Hat', 'Stimulant', 'Psychedelic'])
+            self.game.add_thing(choice, self.position)
+            msg = 'here is a gift as a reward for ecological consciousness –'
+            if choice == 'MusicPlayer':
+                msg += 'pick it up and then use "command thing" on it!'
+            elif choice == 'Hat':
+                msg += 'pick it up and then use "(un-)wear" on it!'
+            elif choice in {'Psychedelic', 'Stimulant'}:
+                msg += 'pick it up and then use "consume" on it!'
+            self.sound('BOTTLE DEPOSITOR', msg)
+
+    def accept(self):
+        self.bottle_counter += 1
+        self.sound('BOTTLE DEPOSITOR',
+                   'thanks for this empty bottle – deposit %s more for a gift!' %
+                   (3 - self.bottle_counter))
+
+
+
+class Thing_Stimulant(Thing):
+    symbol_hint = 'e'
+    cookable = True
+    portable = True
+    consumable = True
+
+
+
+class Thing_StimulantSpawner(ThingSpawner):
+    symbol_hint = 'e'
+    child_type = 'Stimulant'
+
+
+
+class Thing_Chair(Thing):
+    symbol_hint = 'h'
+    portable = True
+    sittable = True
+
+
+
+class Thing_ChairSpawner(ThingSpawner):
+    symbol_hint = 'e'
+    child_type = 'Chair'
+
+
+
+class Thing_Cookie(Thing):
+    symbol_hint = 'c'
+    portable = True
+    consumable = True
+
+    def __init__(self, *args, **kwargs):
+        import string
+        super().__init__(*args, **kwargs)
+        legal_chars = string.ascii_letters + string.digits + string.punctuation + ' '
+        self.thing_char = random.choice(list(legal_chars))
+
+
+
+class Thing_CookieSpawner(Thing):
+    symbol_hint = 'o'
+
+    def accept(self, thing):
+        self.sound('OVEN', '*heat* *brrzt* here\'s a cookie!')
+        self.game.add_thing('Cookie', self.position)
+
+
+
+class Thing_Crate(Thing):
+    portable = True
+    symbol_hint = 'C'
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.content = []
+
+    def accept(self, thing):
+        self.content += [thing]
+
+    def remove_from_crate(self, thing):
+        self.content.remove(thing)
+
+
+
+class Thing_CrateSpawner(ThingSpawner):
+    child_type = 'Crate'
+    symbol_hint = 'C'
+
+
+
+class ThingAnimate(Thing):
+    energy = 50
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.next_task = [None]
+        self.task = None
+        self.invalidate('fov')
+        self.invalidate('other')  # currently redundant though
+
+    def invalidate(self, type_):
+        if type_ == 'fov':
+            self._fov = None
+            self._visible_terrain = None
+            self._visible_control = None
+            self.invalidate('other')
+        elif type_ == 'other':
+            self._seen_things = None
+            self._seen_annotation_positions = None
+            self._seen_portal_positions = None
 
     def set_next_task(self, task_name, args=()):
         task_class = self.game.tasks[task_name]
-        self.next_tasks += [task_class(self, args)]
+        self.next_task = [task_class(self, args)]
 
     def get_next_task(self):
-        if len(self.next_tasks) > 0:
-            task = self.next_tasks.pop(0)
+        if self.next_task[0]:
+            task = self.next_task[0]
+            self.next_task = [None]
             task.check()
+            task.todo += max(0, -self.energy * 10)
             return task
-        else:
-            return None
 
     def proceed(self):
-        self._fov = None
         if self.task is None:
             self.task = self.get_next_task()
             return
-
         try:
             self.task.check()
-        except GameError as e:
+        except (PlayError, GameError) as e:
             self.task = None
             raise e
         self.task.todo -= 1
         if self.task.todo <= 0:
-            self._last_task_result = self.task.do()
+            self.task.do()
             self.game.changed = True
             self.task = self.get_next_task()
 
+    def prepare_multiprocessible_fov_stencil(self):
+        fov_radius = 3 if self.drunk > 0 else 12
+        light_blockers = self.game.get_light_blockers()
+        obstacles = [t.position for t in self.game.things if t.blocks_light]
+        self._fov = FovMap(light_blockers, obstacles, self.game.maps,
+                           self.position, fov_radius, self.game.get_map)
+
+    def multiprocessible_fov_stencil(self):
+        self._fov.init_terrain()
+
     @property
     def fov_stencil(self):
         if self._fov:
             return self._fov
-        fov_map_class = self.game.map_geometry.fov_map_class
-        self._fov = fov_map_class(self.game.things, self.game.maps, self.position,
-                                  12, self.game.get_map)
+        # due to the pre-multiprocessing in game.send_gamestate,
+        # the following should actually never be called
+        self.prepare_multiprocessible_fov_stencil()
+        self.multiprocessible_fov_stencil()
         return self._fov
 
     def fov_test(self, big_yx, little_yx):
@@ -155,7 +615,7 @@ class ThingAnimate(Thing):
                 return True
         return False
 
-    def fov_stencil_map(self, map_type='normal'):
+    def fov_stencil_map(self, map_type):
         visible_terrain = ''
         for yx in self.fov_stencil:
             if self.fov_stencil[yx] == '.':
@@ -166,11 +626,160 @@ class ThingAnimate(Thing):
                 visible_terrain += ' '
         return visible_terrain
 
+    @property
+    def visible_terrain(self):
+        if self._visible_terrain:
+            return self._visible_terrain
+        self._visible_terrain = self.fov_stencil_map('normal')
+        return self._visible_terrain
+
+    @property
+    def visible_control(self):
+        if self._visible_control:
+            return self._visible_control
+        self._visible_control = self.fov_stencil_map('control')
+        return self._visible_control
+
+    @property
+    def seen_things(self):
+        if self._seen_things is not None:
+            return self._seen_things
+        self._seen_things = [t for t in self.game.things
+                             if self.fov_test(*t.position)]
+        return self._seen_things
+
+    @property
+    def seen_annotation_positions(self):
+        if self._seen_annotation_positions is not None:
+            return self._seen_annotation_positions
+        self._seen_annotation_positions = []
+        for big_yx in self.game.annotations:
+            for little_yx in [little_yx for little_yx
+                              in self.game.annotations[big_yx]
+                              if self.fov_test(big_yx, little_yx)]:
+                self._seen_annotation_positions += [(big_yx, little_yx)]
+        return self._seen_annotation_positions
+
+    @property
+    def seen_portal_positions(self):
+        if self._seen_portal_positions is not None:
+            return self._seen_portal_positions
+        self._seen_portal_positions = []
+        for big_yx in self.game.portals:
+            for little_yx in [little_yx for little_yx
+                              in self.game.portals[big_yx]
+                              if self.fov_test(big_yx, little_yx)]:
+                self._seen_portal_positions += [(big_yx, little_yx)]
+        return self._seen_portal_positions
+
 
 
 class Thing_Player(ThingAnimate):
     symbol_hint = '@'
+    drunk = 0
+    tripping = 0
+    need_for_toilet = 0
+    standing = True
+    dancing = 0
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.carrying = None
+
+    def proceed(self):
+        super().proceed()
+        if self.drunk >= 0:
+            self.drunk -= 1
+        if self.tripping >= 0:
+            self.tripping -= 1
+        if self.need_for_toilet > 0:
+            terrain = self.game.maps[self.position[0]][self.position[1]]
+            if terrain in self.game.terrains:
+                terrain_type = self.game.terrains[terrain]
+                if 'toilet' in terrain_type.tags:
+                    self.send_msg('CHAT "You use the toilet. What a relief!"')
+                    self.need_for_toilet = 0
+        if self.need_for_toilet > 0:
+            if random.random() > 0.9999:
+                self.need_for_toilet += 1
+                self.game.changed = True
+            if 100000 * random.random() < self.need_for_toilet:
+                self.send_msg('CHAT "You need to go to a toilet."')
+            if self.need_for_toilet > 100:
+                self.send_msg('CHAT "You pee into your pants. Eww!"')
+                self.need_for_toilet = 0
+                self.game.changed = True
+        if self.drunk == 0:
+            self.send_msg('CHAT "You sober up."')
+            self.invalidate('fov')
+            self.game.changed = True
+        if self.tripping == 0:
+            self.send_msg('DEFAULT_COLORS')
+            self.send_msg('CHAT "You sober up."')
+            self.game.changed = True
+        elif self.tripping > 0 and self.tripping % 250 == 0:
+            self.send_msg('RANDOM_COLORS')
+            self.game.changed = True
+        if random.random() > 0.9999:
+            if self.standing:
+                self.energy -= 1
+            else:
+                self.energy += 1
+            if self.energy < 0 and self.standing and self.energy % 5 == 0:
+                    self.send_msg('CHAT "All that walking or standing uses up '
+                                  'your energy, which makes you slower.  Find a'
+                                  ' place to sit or lie down to regain it."')
+            self.game.changed = True
+        if self.dancing and random.random() > 0.99 and not self.next_task[0]:
+            self.dancing -= 1
+            direction = random.choice(self.game.map_geometry.directions)
+            self.set_next_task('MOVE', [direction])
+            if random.random() > 0.9:
+                self.energy -= 1
+                self.game.changed = True
+        if 1000000 * random.random() < self.energy - 50:
+            self.send_msg('CHAT "Your body tries to '
+                          'dance off its energy surplus."')
+            self.dancing += 50
+            self.game.changed = True
+
+    def send_msg(self, msg):
+        for c_id in self.game.sessions:
+            if self.game.sessions[c_id]['thing_id'] == self.id_:
+                self.game.io.send(msg, c_id)
+                break
+
+    def uncarry(self):
+        t = self.carrying
+        t.carried = False
+        self.carrying = None
+        return t
+
+    def add_cookie_char(self, c):
+        if not self.name in self.game.players_hat_chars:
+            self.game.players_hat_chars[self.name] = ' #'  # default
+        if not c in self.game.players_hat_chars[self.name]:
+            self.game.players_hat_chars[self.name] += c
+
+    def get_cookie_chars(self):
+        chars = ' #'  # default
+        if self.name in self.game.players_hat_chars:
+            chars = self.game.players_hat_chars[self.name]
+        chars_split = list(chars)
+        chars_split.sort()
+        return ''.join(chars_split)
+
+    def try_to_sit(self):
+        terrain = self.game.maps[self.position[0]][self.position[1]]
+        if terrain in self.game.terrains:
+            terrain_type = self.game.terrains[terrain]
+            if 'sittable' in terrain_type.tags:
+                self.standing = False
+                self.send_msg('CHAT "You sink into the %s. '
+                              'Staying here will replenish your energy."'
+                              % terrain_type.description)
+        for t in [t for t in self.game.things
+                  if t.type_ == 'Chair' and t.position == self.position]:
+            self.standing = False
+            self.send_msg('CHAT "You sink into the Chair. '
+                          'Staying here will replenish your energy."')