def METHOD_NAME(self, world, np_random):
    # random properties for landmarks
    for i, landmark in enumerate(world.landmarks):
        landmark.color = np.array([0.1, 0.1, 0.1])
        landmark.color[i + 1] += 0.8
        landmark.index = i
    # set goal landmark
    goal = np_random.choice(world.landmarks)
    for i, agent in enumerate(world.agents):
        agent.goal_a = goal
        agent.color = np.array([0.25, 0.25, 0.25])
        if agent.adversary:
            agent.color = np.array([0.75, 0.25, 0.25])
        else:
            j = goal.index
            agent.color[j + 1] += 0.5
    # set random initial states
    for agent in world.agents:
        agent.state.p_pos = np_random.uniform(-1, +1, world.dim_p)
        agent.state.p_vel = np.zeros(world.dim_p)
        agent.state.c = np.zeros(world.dim_c)
    for i, landmark in enumerate(world.landmarks):
        landmark.state.p_pos = np_random.uniform(-1, +1, world.dim_p)
        landmark.state.p_vel = np.zeros(world.dim_p)