gym_aloha/tasks/sim_end_effector.py [153:169]:
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        super().initialize_episode(physics)

    @staticmethod
    def get_env_state(physics):
        env_state = physics.data.qpos.copy()[16:]
        return env_state

    def get_reward(self, physics):
        # return whether left gripper is holding the box
        all_contact_pairs = []
        for i_contact in range(physics.data.ncon):
            id_geom_1 = physics.data.contact[i_contact].geom1
            id_geom_2 = physics.data.contact[i_contact].geom2
            name_geom_1 = physics.model.id2name(id_geom_1, "geom")
            name_geom_2 = physics.model.id2name(id_geom_2, "geom")
            contact_pair = (name_geom_1, name_geom_2)
            all_contact_pairs.append(contact_pair)
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gym_aloha/tasks/sim_end_effector.py [211:227]:
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        super().initialize_episode(physics)

    @staticmethod
    def get_env_state(physics):
        env_state = physics.data.qpos.copy()[16:]
        return env_state

    def get_reward(self, physics):
        # return whether peg touches the pin
        all_contact_pairs = []
        for i_contact in range(physics.data.ncon):
            id_geom_1 = physics.data.contact[i_contact].geom1
            id_geom_2 = physics.data.contact[i_contact].geom2
            name_geom_1 = physics.model.id2name(id_geom_1, "geom")
            name_geom_2 = physics.model.id2name(id_geom_2, "geom")
            contact_pair = (name_geom_1, name_geom_2)
            all_contact_pairs.append(contact_pair)
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