mujoco_env.py 文件源码

python
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项目:maml_rl 作者: cbfinn 项目源码 文件源码
def __init__(self, action_noise=0.0, file_path=None, template_args=None):
        # compile template
        if file_path is None:
            if self.__class__.FILE is None:
                raise "Mujoco file not specified"
            file_path = osp.join(MODEL_DIR, self.__class__.FILE)
        if file_path.endswith(".mako"):
            lookup = mako.lookup.TemplateLookup(directories=[MODEL_DIR])
            with open(file_path) as template_file:
                template = mako.template.Template(
                    template_file.read(), lookup=lookup)
            content = template.render(
                opts=template_args if template_args is not None else {},
            )
            tmp_f, file_path = tempfile.mkstemp(text=True)
            with open(file_path, 'w') as f:
                f.write(content)
            self.model = MjModel(file_path)
            os.close(tmp_f)
        else:
            self.model = MjModel(file_path)
        self.data = self.model.data
        self.viewer = None
        self.init_qpos = self.model.data.qpos
        self.init_qvel = self.model.data.qvel
        self.init_qacc = self.model.data.qacc
        self.init_ctrl = self.model.data.ctrl
        self.qpos_dim = self.init_qpos.size
        self.qvel_dim = self.init_qvel.size
        self.ctrl_dim = self.init_ctrl.size
        self.action_noise = action_noise
        if "frame_skip" in self.model.numeric_names:
            frame_skip_id = self.model.numeric_names.index("frame_skip")
            addr = self.model.numeric_adr.flat[frame_skip_id]
            self.frame_skip = int(self.model.numeric_data.flat[addr])
        else:
            self.frame_skip = 1
        if "init_qpos" in self.model.numeric_names:
            init_qpos_id = self.model.numeric_names.index("init_qpos")
            addr = self.model.numeric_adr.flat[init_qpos_id]
            size = self.model.numeric_size.flat[init_qpos_id]
            init_qpos = self.model.numeric_data.flat[addr:addr + size]
            self.init_qpos = init_qpos
        self.dcom = None
        self.current_com = None
        self.reset()
        super(MujocoEnv, self).__init__()
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