init python:
    class quest_class(object):
        def __init__(self, **kwargs):
            self.title = ""
            self.hint = ""

            self.__dict__.update(kwargs)

        def status(self):
            return list(self.__dict__)

    class event_class(object):
        """
        Handles and tracks event progression.

        Event labels ending with "_intro" are treated as one-time events. Otherwise the event can be repeated.

        `tier` (int): The current tier number, which determines the set of events to run.
        `counter` (int): The number of successfully completed events.
        `points` (int): The number of successfully completed events in the current tier.
        """

        def __init__(self, **kwargs):
            self.title = ""
            self.hint = ""
            self.counter = 0

            self.start_label = ""
            self.start_tier = 1
            self.inProgress = False

            self.events = []

            self.icons = []
            self.iconset = []

            self.__dict__.update(kwargs)

            # _tier is relative to start_tier
            self._tier = 0
            self._points = 0

            if not self.events:
                raise Exception('Events: "events" list was not defined for "{}".'.format(self.title))

            self._max_tiers = len(self.events)

            if not self.iconset:
                raise Exception('Events: "iconset" list was not defined for "{}". You need to add at least one set of icons.'.format(self.title))
            elif len(self.iconset) < self._max_tiers:
                for i in range(self._max_tiers-len(self.iconset)):
                    self.iconset.append([self.iconset[0][0], self.iconset[0][1]])

            if self.icons and len(self.icons) < self._max_tiers:
                raise Exception('Events: "icons" list does not match the number of events for "{}".'.format(self.title))

            for i in range(self._max_tiers):
                for j in range(len(self.events[i])):
                    self.events[i][j] += [False]

        def start(self):
            self.counter += 1

            for i in range(len(self.events[self._tier])):
                if self.events[self._tier][i][1] == False:
                    self.events[self._tier][i][1] = True
                    self.points += 1
                    return renpy.jump(self.events[self._tier][i][0])

            self.start_random()

        def start_advance(self):
            self.counter += 1

            for i in range(self._max_tiers):
                for j in range(len(self.events[i])):
                    if self.events[i][j][1] == False:
                        self.events[i][j][1] = True
                        self._tier = i
                        self.points += 1
                        return renpy.jump(self.events[i][j][0])

            self.start_random()

        def start_random(self):
            events_filtered = [x for x in self.events[self._tier] if '_intro' not in x[0]]
            random_event = events_filtered[random.randint(0, len(events_filtered)-1)][0]
            return renpy.jump(random_event)

        def change_icon(self, a="heart_half", b="heart_red"):
            for icon in self.iconset:
                if icon[1] == a:
                    icon[1] = b

        def get_menu_item(self, disabled=False):
            menu_text = ""

            if self.hint:
                menu_text += "{{image={}_check_True}}".format(gui.theme())

            if self.title:
                menu_text += "\"{}\"".format(self.title)

            imagepath = "interface/icons/small/"

            icon = None
            if len(self.icons) > 0 and self.icons[self._tier]:
                icon = imagepath + self.icons[self._tier] + ".webp"

            progress = []
            for i, ev in enumerate(self.events[self._tier]):
                is_complete = ev[1]

                if is_complete:
                    if self.iconset[self._tier][1] == "heart_half":
                        if i == len(self.events[self._tier])-1:
                            progress.append(imagepath + self.iconset[self._tier][1] + ".webp")
                        else:
                            progress.append(imagepath + "heart_red.webp")
                    else:
                        progress.append(imagepath + self.iconset[self._tier][1] + ".webp")
                else:
                    progress.append(imagepath + self.iconset[self._tier][0] + ".webp")

            if disabled:
                return gui.menu_item(menu_text, "block", icon=icon, progress=progress, style="disabled")
            else:
                return gui.menu_item(menu_text, self.start_label, icon=icon, progress=progress)

        def fail(self):
            self.counter = max(0, self.counter-1)
            self.points -= 1
            self.events[self._tier][self._points][1] = False
            return

        def fail_intentional(self):
            self.counter = max(0, self.counter-1)
            self.points -= 1
            return

        # Reset the event completely
        def reset(self):
            for i in range(self._max_tiers):
                for j in range(len(self.events[i])):
                    self.events[i][j][1] = False
            self._tier = 0
            self._points = 0
            self.counter = 0
            self.inProgress = False

        def status(self, value):
            status_list = []
            for item in self.events[value-1]:
                status_list += [item[1]]
            return status_list

        def is_complete(self, ignore_in_progress=False):
            is_lstates.ast.tier = (self._tier == self._max_tiers - 1)
            return is_lstates.ast.tier and self.is_tier_complete(ignore_in_progress=ignore_in_progress)

        def is_tier_complete(self, ignore_in_progress=False):
            event_count = len(self.events[self._tier])
            return self.points == event_count and (not self.inProgress or ignore_in_progress)

        def is_event_complete(self, tier, event):
            relative_tier = tier - self.start_tier
            try:
                return bool(self.events[relative_tier][event-1][1])
            except IndexError:
                return False

        @property
        def points(self):
            return self._points

        @points.setter
        def points(self, value):
            self._points = max(0, min(value, len(self.events[self._tier])))

        @property
        def tier(self):
            return self._tier + self.start_tier

        @tier.setter
        def tier(self, value):
            relative_tier = max(0, min(value - self.start_tier, self._max_tiers - 1))
            if relative_tier != self._tier:
                # Change tier and reset progress
                self._points = 0
                self._tier = relative_tier