WTS/game/scripts/doll/face.rpy

init python:
    class DollFace(DollMethods):

        blacklist_blink = {None, "closed", "happyCl", "wink"}

        def __init__(self, obj, face):
            self.char = obj
            self.name = self.char.name
            self.face = face
            self.imagepath = "characters/{}/face/".format(self.name)

        def build_image(self):
            sprites = []
            ### TODO: This piece of code needs to be simplified.

            # Add facial expressions
            for k, v in self.face.items():
                if v[0] and k not in ("eyes", "pupils"):
                    sprites.append(("{}{}/{}.webp".format(self.imagepath, k, v[0]), v[1]))

            eyes = self.face["eyes"][0]
            pupils = self.face["pupils"][0]

            if eyes not in self.blacklist_blink:
                blink_path = "{}eyes/closed.webp".format(self.imagepath)
                eyes_path = "{}eyes/{}.webp".format(self.imagepath, eyes)
                mask_path = "{}eyes/{}_mask.webp".format(self.imagepath, eyes)
                pupils_path = "{}pupils/{}.webp".format(self.imagepath, pupils)

                if pupils:
                    if renpy.loadable(blink_path):
                        normal = Fixed(eyes_path, AlphaMask(pupils_path, mask_path), fit_first=True)
                        sprites.append( (doll_blink(normal, blink_path), self.face["eyes"][1]) )
                    else:
                        sprites.append((eyes_path, self.face["eyes"][1]))

                        if renpy.loadable(mask_path):
                            sprites.append((AlphaMask(pupils_path, mask_path), self.face["pupils"][1]))
            else:
                if eyes:
                    eyes_path = "{}eyes/{}.webp".format(self.imagepath, eyes)
                    sprites.append((eyes_path, self.face["eyes"][1]))

                    mask_path = "{}eyes/{}_mask.webp".format(self.imagepath, eyes)
                    if renpy.loadable(mask_path):
                        pupils_path = "{}pupils/{}.webp".format(self.imagepath, pupils)
                        sprites.append((AlphaMask(pupils_path, mask_path), self.face["pupils"][1]))

            sprites.sort(key=itemgetter(1))
            sprites = tuple(x[0] for x in sprites)
            return sprites

        def get_skin(self):
            for k, v in self.face.items():
                skin_path = "{}{}/{}_skin.webp".format(self.imagepath, k, v[0])
                if renpy.loadable(skin_path):
                    yield skin_path

        def get_face(self):
            return dict((k, v[0]) for k, v in self.face.items())

        def set_face(self, **kwargs):
            """Takes keyword argument(s) with the string name of expression file(s). Returns True if image is changed."""
            changed = False
            for arg, value in kwargs.items():
                if value not in (self.face[str(arg)][0], False):
                    self.face[str(arg)][0] = value
                    changed = True

            if changed:
                self.rebuild_image()

            return changed

        def set_pose(self, pose):
            if pose is None:
                self.imagepath = "characters/{}/face/".format(self.name)
            else:
                self.imagepath = "characters/{}/poses/{}/face/".format(self.name, pose)

            self.rebuild_image()
            return

        def set_zorder(self, **kwargs):
            """Takes keyword argument(s) with the string name of face type(s) and int value(s). Returns True if image is changed."""
            changed = False
            for arg, value in kwargs.items():
                if value != self.face[str(arg)][1]:
                    self.face[str(arg)][1] = value
                    changed = True

            if changed:
                self.rebuild_image()

            return changed