WTS/game/scripts/doll/chibi.rpy

init 5 python:
    # def pairwise(iterable):
    #     a = iter(iterable)
    #     return zip(a, a)

    class DollChibi(renpy.Displayable):
        layers_additional = {
            "back": -100,
            "front": 100,
            "skin": 0.1,
            "extra": 1,
        }

        extensions = [ ".jpg", ".jpeg", ".png", ".webp" ]

        def __init__(self, name, doll, pose="stand", layer="screens", zorder=12, zoom=0.28, *args, **properties):

            super(DollChibi, self).__init__(**properties)

            self.name = name
            self.doll = doll
            self.pose = pose
            self.idle = "stand"
            self.layer = layer
            self.zorder = zorder
            self.zoom = zoom

            self.pos = (0,0)
            self.xzoom = 1

            # Animation
            self.anim_speed = 1.0
            self.anim_fps = 8.0
            self.anim_trans = None
            self.anim_interval = None
            self.anim_interval_total = None
            self.anim_path = None

            self.anim_constructor()

            # ATL
            self.atl_time = 0
            self.atl_time_total = 0
            self.atl_partial = None
            self.atl_looping = False
            self.atl_pause = False
            self.atl_at_list = []

        def anim_constructor(self):
            """This function is responsible for creating an animation out of raw image files."""
            doll = self.doll

            path = f"characters/{self.name}/chibi/{self.pose}"
            files = [f for f in renpy.list_files() if f.startswith(path)]
            images = []
            groups = {}

            # Construct Animation
            for fn in files:
                root = os.path.dirname(fn)
                name, ext = os.path.splitext(os.path.basename(fn))
                frame = name.split("_")[0]

                if not ext.lower() in self.extensions:
                    continue

                d = renpy.displayable(fn)

                if name.isdigit() and root.endswith(path):
                    # Create frame group if filename is a frame number and not a cloth
                    groups.setdefault(name, {}).setdefault(0, [d]) # Body layer is zorder zero
                    continue

                # Get frame id, clothing type, and clothing id
                ctype, cid = root.rsplit("/")[-2::]

                if not frame in groups:
                    # Frame group is missing, skip construction
                    continue

                # Check if clothing type slot is occupied and currently visible
                if (not doll.is_equipped(ctype) or
                    not doll.is_worn(ctype)):
                    continue

                equipped = doll.get_equipped(ctype)
                zorder = equipped.zorder

                # Check if the supplied file is a special layer,
                # in which case we need to treat it differently
                for layer, modifier, in self.layers_additional.items():
                    suffix = f"_{layer}"

                    if name.endswith(suffix):
                        zorder += modifier
                        cid = cid.removesuffix(suffix)
                        break

                # Check if clothing type matches
                if not equipped.type == ctype:
                    continue

                # Check if clothing id matches, if not, add fallback image instead
                if not equipped.id == cid:
                    fpath = f"{path}/{ctype}/fallback/0"

                    for i in self.extensions:
                        f = fpath + i

                        if renpy.loadable(f):
                            d = renpy.displayable(f)
                            break

                groups[frame].setdefault(zorder, []).append(d)

            # Iterate through frame groups and nested zorder groups
            for fgroup in groups.values():
                igroup = []

                # Sort zorder groups
                for zgroup in dict(sorted(fgroup.items())).values():
                    # Unpack zorder groups into displayables
                    igroup.append(Fixed(*zgroup, fit_first=True))

                images.append(Fixed(*igroup, fit_first=True))

            if not images:
                raise IOError(f"Animation Constructor could not find any images inside directory:\n\n\"{path}\"")

            # For singular images it's optimal to halt the animation,
            # instead of replaying the same frame over and over again.
            frames = len(images)
            if frames > 1:
                interval = self.anim_speed / self.anim_fps
            else:
                interval = (365.25 * 86400.0) # About one year

            self.anim_path = path
            self.anim_frames = frames
            self.anim_interval = interval
            self.anim_interval_total = (frames * interval)
            self.anim_images = images
            self.anim_prev_images = [ images[-1] ] + images[:-1]

        def render(self, width, height, st, at):

            # Animation Renderer
            t = st % self.anim_interval_total

            trans = self.anim_trans
            interval = self.anim_interval

            # Trigger event after animation time elapses
            if st > self.atl_time_total:
                renpy.timeout(0)

            for image, prev in zip(self.anim_images, self.anim_prev_images):
                if t < interval:
                    if not renpy.game.less_updates:
                        renpy.redraw(self, interval - t)

                    if trans and st >= interval:
                        image = trans(old_widget=prev, new_widget=image)

                    im = renpy.render(image, width, height, t, at)
                    width, height = im.get_size()
                    rv = renpy.Render(width, height)
                    rv.blit(im, (0, 0))

                    return rv
                else:
                    t = t - interval

        def event(self, ev, x, y, st):
            # Determine pose change if show time exceeds animation time.
            # Looping animations ignore this check because they are rebuilt every loop.

            if renpy.in_rollback():
                # We don't want to use 'raise renpy.IgnoreEvent' because it blocks events in other displayables, including interfaces
                return

            elif renpy.is_skipping():
                self.stop()
                return

            elif ((not self.atl_looping and st > self.atl_time_total)
                or (ev.type == pygame.MOUSEBUTTONUP and ev.button == 1)
                or (ev.type == pygame.KEYDOWN and ev.key in [pygame.K_RETURN, pygame.K_SPACE, pygame.K_KP_ENTER, pygame.K_SELECT])):
                self.stop()

        # def per_interact(self):
        #     # Handle interrupt events
        #     if (renpy.is_skipping() or self.atl_pause) and not self.pose == self.idle:
        #         self.stop()

        def set_pose(self, pose):
            if self.pose == pose:
                return

            self.pose = pose
            self.anim_constructor()

        def set_idle(self, pose):
            if self.idle == pose:
                return

            self.idle = pose

        def stop(self):
            # Freezes the animation
            path, _, _, _ = self.atl_partial.args
            pos = path[-1]
            xzoom = 1 if (path[-1] > path[-2]) else -1
            zpos = self.zorder + (1.0 / (pos[1] / config.screen_height))

            self.pos = pos
            self.xzoom = xzoom

            self.atl_time = 0
            self.atl_time_total = 0

            self.set_pose(self.idle)
            transform = Transform(pos=pos, zoom=self.zoom, xzoom=xzoom, anchor=(0.5, 1.0))
            self.show(transform, self.atl_at_list, self.layer, zpos)

        def move(self, path, speed=1.0, pause=True, loop=False, warper="linear", at_list=[], pose="walk", repeat=None, wrap=True, reverse=True):
            """Makes chibi move"""

            self.atl_looping = loop
            self.atl_pause = pause
            self.atl_at_list = at_list

            if isinstance(path, tuple):
                path = [path]

            # If 'A' position is not supplied for A -> B movement, use last known position instead.
            if len(path) < 2:
                path = [self.pos] + path
            # If reverse and loop/repeat is True, and pathing has more than two entries,
            # use complex looping by joining the reversed paths
            elif reverse and (loop or repeat):
                # Reverses the list, strips last entry from the reverse list, and finally joins them.
                path += path[1::-1]

            if repeat:
                path *= repeat

                if wrap:
                    # Wrap pathing back to starting position
                    path.append(path[0])

            self.set_pose(pose)

            # Note: Warper names and their count can change over time,
            # so it's easier to just evaluate the input.
            # List of available warpers:
            # https://www.renpy.org/doc/html/atl.html?#warpers
            warper = eval(f"_warper.{warper}")

            distances = []
            times = []

            if loop:
                # Append first position as last to create a looped path.
                path.append(path[0])

            # Calculate distances and timings using euclidean distance algorithm.
            for xy1, xy2 in zip(path, path[1:]):
                x1, y1 = xy1
                x2, y2 = xy2

                distance = math.hypot(x2 - x1, y2 - y1)
                time = distance / (100.0 * speed)

                distances.append(distance)
                times.append(time)

            # Calculate total ATL time required to reach the destination
            total_time = sum(times)
            self.atl_time_total = total_time

            # Recalculate animation intervals when necessary, including speed factors.
            frames = self.anim_frames
            if frames > 1:
                interval = (self.anim_speed / self.anim_fps) / speed
                interval_total = (frames * interval)

                self.anim_interval = interval
                self.anim_interval_total = interval_total

            # renpy.partial allows us to pass arguments into a transform function.
            partial = renpy.partial(self.move_atl, path, times, loop, warper)
            self.atl_partial = partial

            transform = Transform(function=partial, anchor=(0.5, 1.0))

            self.show(transform, at_list, self.layer, self.zorder)

            if pause:
                if loop:
                    renpy.pause(None)
                else:
                    renpy.pause(total_time)

            return (distances, times)

        def move_atl(self, path, times, loop, warper, trans, st, at):
            """Animations are time based, so each segment will happen at a specific frame time."""
            if self.atl_time_total == 0:
                # Stops updating the animation
                return None

            if loop:
                timer = st % self.atl_time_total
            else:
                timer = st

                if timer > self.atl_time_total:
                    return None

            internal_time = 0
            current_segment = 0

            # TODO: This loop feels unnecessary, need to find a better way.
            for i, t in enumerate(times):
                if (internal_time + t) > timer:
                    current_segment = i
                    break

                internal_time += t

            segment_time = (timer - internal_time) / times[current_segment]
            next_segment = current_segment + 1

            # Adjust XY position
            trans.pos = renpy.atl.interpolate(warper(segment_time), path[current_segment], path[next_segment], renpy.atl.PROPERTIES["pos"])
            self.pos = trans.pos

            # Adjust X zoom based on target X position
            # 1 = Facing Right, -1 = Facing Left
            trans.xzoom = -1 if (path[current_segment][0] > path[next_segment][0]) else 1
            self.xzoom = trans.xzoom

            # Adjust zoom
            trans.zoom = self.zoom

            # Adjust Z position based on Y axis
            # TODO: Add room support with bottom, middle, and top vanishing points.
            # room_scale = 0.5
            # zpos1 = ((path[current_segment][1] / 600.0) * 1000.0) * room_scale
            # zpos2 = ((path[next_segment][1] / 600.0) * 1000.0) * room_scale
            # trans.zpos = renpy.atl.interpolate(warper(segment_time), zpos1, zpos2, renpy.atl.PROPERTIES["zpos"])
            # self.zpos = trans.zpos

            # TODO: Using zorders is suboptimal and expensive, using 3D staging would be preferable.
            zpos = self.zorder + (1.0 / (self.pos[1] / config.screen_height))
            renpy.change_zorder(self.layer, self.name, zpos)
            return 0

        def show(self, transform, at_list, layer, zorder):
            # The safest way to restart the transform is to rebuild it.
            # Other methods proved to be too finicky...

            image = At(self, transform) # IMPORTANT: Enable perspective and gl_depth for 3D staging

            if not renpy.is_init_phase():
                renpy.show(name=self.name, what=image, at_list=at_list, layer=layer, zorder=zorder)

init offset = 5

default hooch_chibi = DollChibi(name="hooch", doll=hooch)
default cho_chibi_new = DollChibi(name="cho", doll=cho)

label chibitest:
    "Rollback block"
    $ renpy.block_rollback()

    "repeat 3"
    $ cho_chibi_new.move(path=[(500, 421), (650, 521), (800, 421)], repeat=3)
    "loop"
    $ cho_chibi_new.move(path=[(500, 421), (650, 521), (800, 421)], loop=True)
    "End"

    jump main_room_menu