def _load_meshes()

in jsuarez/extra/embyr_deprecated/embyr/kivy3/loaders/objloader.py [0:0]

• 58 lines of code
• 23 McCabe index (conditional complexity)

    def _load_meshes(self):

        wvobj = WaveObject(self)
        self.vertices = []
        self.normals = []
        self.texcoords = []
        faces_section = False

        for line in open(self.source, "r"):
            if line.startswith('#'):
                continue
            if line.startswith('s'):
                continue
            values = line.split()
            if not values:
                continue
            if values[0] == 'o' or values[0] == 'g':
                wvobj.name = values[1]
            elif values[0] == 'mtllib':
                if not self.mtl_source:
                    _obj_dir = os.path.abspath(os.path.dirname(self.source))
                    self.mtl_source = os.path.join(_obj_dir, values[1])
                    self.load_mtl()
            elif values[0] == 'usemtl':
                wvobj.mtl_name = values[1]
            elif values[0] == 'v':
                if faces_section:
                    # here we yield new mesh object
                    faces_section = False
                    yield wvobj
                    wvobj = WaveObject(self)
                v = list(map(float, values[1:4]))
                if self.swapyz:
                    v = v[0], v[2], v[1]
                self.vertices.append(v)
            elif values[0] == 'vn':
                v = list(map(float, values[1:4]))
                if self.swapyz:
                    v = v[0], v[2], v[1]
                self.normals.append(v)
            elif values[0] == 'vt':
                self.texcoords.append(list(map(float, values[1:3])))
            elif values[0] == 'f':
                if not faces_section:
                    faces_section = True
                face = []
                texcoords = []
                norms = []
                for v in values[1:]:
                    w = v.split('/')
                    face.append(int(w[0]))
                    if len(w) >= 2 and len(w[1]) > 0:
                        texcoords.append(int(w[1]))
                    else:
                        texcoords.append(-1)
                    if len(w) >= 3 and len(w[2]) > 0:
                        norms.append(int(w[2]))
                    else:
                        norms.append(-1)
                wvobj.faces.append((face, norms, texcoords))
        yield wvobj