def __init__(self, arglist):
self.env_name = arglist.game
self.vae = ConvVAE(batch_size=1,
gpu_mode=False,
is_training=False,
reuse=True)
self.vae.load_json(arglist.vae_file)
self.rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
self.rnn.load_json(arglist.rnn_file)
self.state = rnn_init_state(self.rnn)
self.rnn_mode = True
self.input_size = rnn_output_size(EXP_MODE)
self.z_size = 32
if EXP_MODE == MODE_Z_HIDDEN: # one hidden layer
self.hidden_size = 40
self.weight_hidden = np.random.randn(self.input_size,
self.hidden_size)
self.bias_hidden = np.random.randn(self.hidden_size)
self.weight_output = np.random.randn(self.hidden_size, 2)
self.bias_output = np.random.randn(2)
self.param_count = ((self.input_size + 1) *
self.hidden_size) + (self.hidden_size * 2 + 2)
else:
self.weight = np.random.randn(self.input_size, 2)
self.bias = np.random.randn(2)
self.param_count = (self.input_size) * 2 + 2
self.render_mode = False
def train_rnn(args, train_dataset, validation_dataset):
model_save_path = get_path(args, "tf_rnn", create=True)
rnn = MDNRNN(args=args)
rnn.compile(optimizer=rnn.optimizer,
loss=rnn.loss_fn,
metrics=rnn.get_metrics())
print("Start training")
current_time = datetime.now().strftime("%Y%m%d-%H%M%S")
tensorboard_dir = model_save_path / "tensorboard" / current_time
rnn.fit(train_dataset,
validation_data=validation_dataset,
steps_per_epoch=args.rnn_epoch_steps,
epochs=args.rnn_num_steps // args.rnn_epoch_steps,
callbacks=[
tf.keras.callbacks.TensorBoard(log_dir=str(tensorboard_dir),
update_freq=20,
histogram_freq=1,
profile_batch=0),
tf.keras.callbacks.ModelCheckpoint(str(model_save_path /
"ckpt-e{epoch:03d}"),
verbose=1),
])
rnn.save(str(model_save_path))
print(f"Model saved to {model_save_path}")
def __init__(self,
args,
load_model=True,
full_episode=False,
with_obs=False):
super(CarRacingMDNRNN, self).__init__(full_episode=full_episode)
self.with_obs = with_obs # whether or not to return the frame with the encodings
self.vae = CVAE(args)
self.rnn = MDNRNN(args)
if load_model:
self.vae.set_weights(
tf.keras.models.load_model('results/{}/{}/tf_vae'.format(
args.exp_name, args.env_name),
compile=False).get_weights())
self.rnn.set_weights(
tf.keras.models.load_model('results/{}/{}/tf_rnn'.format(
args.exp_name, args.env_name),
compile=False).get_weights())
self.rnn_states = rnn_init_state(self.rnn)
self.full_episode = False
self.observation_space = Box(low=np.NINF,
high=np.Inf,
shape=(32 + 256))
def __init__(self, load_model=True):
self.env_name = './VisualPushBlock_withBlock_z_info.x86_64' #'./VisualPushBlock.x86_64'
self.vae = ConvVAE(batch_size=1,
gpu_mode=False,
is_training=False,
reuse=True)
self.rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
if load_model:
self.vae.load_json('vae/vae.json')
self.rnn.load_json('rnn/rnn.json')
self.state = rnn_init_state(self.rnn)
self.rnn_mode = True
self.input_size = rnn_output_size(EXP_MODE)
self.z_size = z_size
if EXP_MODE == MODE_Z_HIDDEN: # one hidden layer ###CHANGE is made here
self.hidden_size = 40
self.weight_hidden = np.random.randn(self.input_size,
self.hidden_size)
self.bias_hidden = np.random.randn(self.hidden_size)
self.weight_output = np.random.randn(self.hidden_size, ACTION_SIZE)
self.bias_output = np.random.randn(ACTION_SIZE)
self.param_count = ((self.input_size + 1) * self.hidden_size) + (
self.hidden_size * ACTION_SIZE + ACTION_SIZE)
else:
self.weight = np.random.randn(self.input_size, ACTION_SIZE)
self.bias = np.random.randn(ACTION_SIZE)
self.param_count = (self.input_size) * ACTION_SIZE + ACTION_SIZE
self.render_mode = False
def __init__(self,
args,
load_model=True,
full_episode=False,
with_obs=False):
super(CarRacingMDNRNN, self).__init__(full_episode=full_episode)
self.with_obs = with_obs # whether or not to return the frame with the encodings
self.vae = CVAE(args)
self.rnn = MDNRNN(args)
if load_model:
self.vae.set_weights([
param_i.numpy() for param_i in tf.saved_model.load(
'results/{}/tf_vae'.format(args.env_name)).variables
])
self.rnn.set_weights([
param_i.numpy() for param_i in tf.saved_model.load(
'results/{}/tf_rnn'.format(args.env_name)).variables
])
self.rnn_states = rnn_init_state(self.rnn)
self.full_episode = False
self.observation_space = Box(low=np.NINF,
high=np.Inf,
shape=(args.z_size +
args.rnn_size * args.state_space))
def __init__(self, args, render_mode=False, load_model=True):
self.render_mode = render_mode
model_path_name = 'results/{}/{}'.format(args.exp_name, args.env_name)
with open(os.path.join(model_path_name, 'tf_initial_z/initial_z.json'),
'r') as f:
[initial_mu, initial_logvar] = json.load(f)
self.initial_mu_logvar = np.array(
[list(elem) for elem in zip(initial_mu, initial_logvar)])
self.vae = CVAE(args)
self.rnn = MDNRNN(args)
if load_model:
self.vae.set_weights(
tf.keras.models.load_model('results/{}/{}/tf_vae'.format(
args.exp_name, args.env_name),
compile=False).get_weights())
self.rnn.set_weights(
tf.keras.models.load_model('results/{}/{}/tf_rnn'.format(
args.exp_name, args.env_name),
compile=False).get_weights())
# future versions of OpenAI gym needs a dtype=np.float32 in the next line:
self.action_space = Box(low=-1.0, high=1.0, shape=())
obs_size = self.rnn.args.z_size + self.rnn.args.rnn_size * self.rnn.args.state_space
# future versions of OpenAI gym needs a dtype=np.float32 in the next line:
self.observation_space = Box(low=-50., high=50., shape=(obs_size, ))
self.rnn_states = None
self.o = None
self.seed()
self.reset()
def __init__(self, load_model=True):
# For Mac
# self.env_name = "/Users/intuinno/codegit/pushBlock/app/mac/VisualPushBlockContinuous"
# For linux
self.env_name = "/home/intuinno/codegit/pushblock/app/linux/pushblock.x86_64"
self.vae = ConvVAE(batch_size=1, gpu_mode=False, is_training=False, reuse=True)
self.rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
if load_model:
self.vae.load_json('vae/vae.json')
self.rnn.load_json('rnn/rnn.json')
self.state = rnn_init_state(self.rnn)
self.rnn_mode = True
self.input_size = rnn_output_size(EXP_MODE)
self.z_size = 32
if EXP_MODE == MODE_Z_HIDDEN: # one hidden layer
self.hidden_size = 40
self.weight_hidden = np.random.randn(self.input_size, self.hidden_size)
self.bias_hidden = np.random.randn(self.hidden_size)
self.weight_output = np.random.randn(self.hidden_size, 3)
self.bias_output = np.random.randn(3)
self.param_count = ((self.input_size+1)*self.hidden_size) + (self.hidden_size*3+3)
else:
self.weight = np.random.randn(self.input_size, 3)
self.bias = np.random.randn(3)
self.param_count = (self.input_size)*3+3
self.render_mode = False
def __init__(self):
self.env_name = "carracing"
self.vae = ConvVAE(batch_size=1, gpu_mode=False, is_training=False, reuse=True)
self.vae.load_json('vae/vae.json')
self.rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
self.rnn.load_json('rnn/rnn.json')
self.state = rnn_init_state(self.rnn)
self.rnn_mode = True
self.input_size = rnn_output_size(EXP_MODE)
self.z_size = 32
if EXP_MODE == MODE_Z_HIDDEN: # one hidden layer
self.hidden_size = 40
self.weight_hidden = np.random.randn(self.input_size, self.hidden_size)
self.bias_hidden = np.random.randn(self.hidden_size)
self.weight_output = np.random.randn(self.hidden_size, 3)
self.bias_output = np.random.randn(3)
self.param_count = ((self.input_size+1)*self.hidden_size) + (self.hidden_size*3+3)
else:
self.weight = np.random.randn(self.input_size, 3)
self.bias = np.random.randn(3)
self.param_count = (self.input_size)*3+3
self.render_mode = False
def __init__(self, arglist, action_space, scope, load_model=True):
self.action_space = action_space
self.arglist = arglist
self.vae = ConvVAE(batch_size=1,
gpu_mode=False,
is_training=False,
reuse=True)
hps_sample = hps_model._replace(
batch_size=1,
input_seq_width=32 + arglist.action_space +
(arglist.agent_num - 1) * arglist.action_space * arglist.timestep,
max_seq_len=1,
use_recurrent_dropout=0,
is_training=0)
self.rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
if load_model:
self.vae.load_json(arglist.vae_model_dir)
self.rnn.load_json(arglist.rnn_model_dir)
self.state = rnn_init_state(self.rnn)
self.rnn_mode = True
if arglist.inference:
self.input_size = rnn_output_size(
EXP_MODE) + (arglist.agent_num - 1) * arglist.action_space
else:
self.input_size = rnn_output_size(EXP_MODE)
self.z_size = 32
# action trajectories recording
self.act_traj = [
collections.deque(np.zeros(
(arglist.timestep, arglist.action_space)),
maxlen=arglist.timestep)
] * (arglist.agent_num - 1)
self.oppo_model = Oppo_Model(arglist.agent_num, arglist.timestep,
arglist.action_space,
arglist.action_space,
"oppo_model_{}".format(scope))
self.inference = arglist.inference
if EXP_MODE == MODE_Z_HIDDEN: # one hidden layer
self.hidden_size = 40
self.weight_hidden = np.random.randn(self.input_size,
self.hidden_size)
self.bias_hidden = np.random.randn(self.hidden_size)
self.weight_output = np.random.randn(self.hidden_size,
self.action_space)
self.bias_output = np.random.randn(self.action_space)
self.param_count = ((self.input_size + 1) * self.hidden_size) + (
self.hidden_size * self.action_space + self.action_space)
else:
self.weight = np.random.randn(self.input_size, self.action_space)
self.bias = np.random.randn(self.action_space)
self.param_count = (
self.input_size) * self.action_space + self.action_space
def __init__(self, load_model=True, full_episode=False):
super(CarRacingMDNRNN, self).__init__(full_episode=full_episode)
self.vae = CVAE(batch_size=1)
self.rnn = MDNRNN(hps_sample)
if load_model:
self.vae.load_json('tf_vae/vae.json')
self.rnn.load_json('tf_rnn/rnn.json')
self.rnn_states = rnn_init_state(self.rnn)
self.full_episode = False
self.observation_space = Box(low=np.NINF, high=np.Inf, shape=(32+256))
def __init__(self,
args,
render_mode=False,
load_model=True,
with_obs=False):
super(DoomTakeCoverMDNRNN, self).__init__()
self.with_obs = with_obs
self.no_render = True
if render_mode:
self.no_render = False
self.current_obs = None
self.vae = CVAE(args)
self.rnn = MDNRNN(args)
if load_model:
self.vae.set_weights([
param_i.numpy() for param_i in
tf.saved_model.load('results/{}/{}/tf_vae'.format(
args.exp_name, args.env_name)).variables
])
self.rnn.set_weights([
param_i.numpy() for param_i in
tf.saved_model.load('results/{}/{}/tf_rnn'.format(
args.exp_name, args.env_name)).variables
])
self.action_space = Box(low=-1.0, high=1.0, shape=())
self.obs_size = self.rnn.args.z_size + self.rnn.args.rnn_size * self.rnn.args.state_space
self.observation_space = Box(low=0, high=255, shape=(64, 64, 3))
self.actual_observation_space = Box(low=-50.,
high=50.,
shape=(self.obs_size))
self._seed()
self.rnn_states = None
self.z = None
self.restart = None
self.frame_count = None
self.viewer = None
self._reset()
def __init__(self,
model_name='',
load_model=True,
load_full_model=False,
full_model_path=''):
self.model_name = model_name
self.env_name = "carracing"
self.vae = ConvVAE(batch_size=1,
gpu_mode=False,
is_training=False,
reuse=True)
self.rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
if load_full_model:
self.vae.load_json(os.path.join(full_model_path, 'vae.json'))
self.rnn.load_json(os.path.join(full_model_path, 'rnn.json'))
elif load_model:
self.vae.load_json(
os.path.join(vae_path, self.model_name + '_vae.json'))
self.rnn.load_json(
os.path.join(rnn_path, self.model_name + '_rnn.json'))
self.state = rnn_init_state(self.rnn)
self.rnn_mode = True
self.input_size = rnn_output_size(EXP_MODE)
self.z_size = 32
if EXP_MODE == MODE_Z_HIDDEN: # one hidden layer
self.hidden_size = 40
self.weight_hidden = np.random.randn(self.input_size,
self.hidden_size)
self.bias_hidden = np.random.randn(self.hidden_size)
self.weight_output = np.random.randn(self.hidden_size, 3)
self.bias_output = np.random.randn(3)
self.param_count = ((self.input_size + 1) *
self.hidden_size) + (self.hidden_size * 3 + 3)
else:
self.weight = np.random.randn(self.input_size, 3)
self.bias = np.random.randn(3)
self.param_count = (self.input_size) * 3 + 3
self.render_mode = False
def __init__(self, type="CarRacing", history_pick=4, seed=None, detect_edges=False, detect_grass=False, flip=False):
self.name = type + str(time.time())
random.seed(30)
self.env = make_env('CarRacing-v0', random.randint(1,10000000), render_mode = False, full_episode = True)
self.image_dimension = [64,64]
self.history_pick = history_pick
self.state_space_size = history_pick * np.prod(self.image_dimension)
self.action_space_size = 5
self.state_shape = [None, self.history_pick] + list(self.image_dimension)
self.history = []
self.action_dict = {0: [-1, 0, 0], 1: [1, 0, 0], 2: [0, 1, 0], 3: [0, 0, 0.8], 4: [0, 0, 0]}
self.seed = seed
self.detect_edges = detect_edges
self.detect_grass = detect_grass
self.flip = flip
self.flip_episode = False
self.vae = ConvVAE(batch_size=1, gpu_mode=False, is_training=False, reuse=True)
self.rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
self.vae.load_json('vae/vae.json')
self.rnn.load_json('rnn/rnn.json')
def __init__(self,
sess=None,
summary_writer=tf.summary.FileWriter("logs/"),
rl_training=False,
reuse=False,
cluster=None,
index=0,
device='/gpu:0',
ppo_load_path=None,
ppo_save_path=None,
load_worldmodel=True,
ntype='worldmodel'):
self.policy_model_path_load = ppo_load_path + ntype
self.policy_model_path_save = ppo_save_path + ntype
self.rl_training = rl_training
self.use_norm = True
self.reuse = reuse
self.sess = sess
self.cluster = cluster
self.index = index
self.device = device
self.vae = ConvVAE(batch_size=1,
gpu_mode=False,
is_training=False,
reuse=True)
self.rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
if load_worldmodel:
self.vae.load_json('vae/vae.json')
self.rnn.load_json('rnn/rnn.json')
self.input_size = rnn_output_size(EXP_MODE)
self._create_graph()
self.rl_saver = tf.train.Saver()
self.summary_writer = summary_writer
def __init__(self, load_model=True):
self.env_name = "Pong"
self._make_env()
self.vae = ConvVAE(batch_size=1,
gpu_mode=False,
is_training=False,
reuse=True)
hps_sample_dynamic = hps_sample._replace(num_actions=self.num_actions)
self.rnn = MDNRNN(hps_sample_dynamic, gpu_mode=False, reuse=True)
if load_model:
self.vae.load_json('vae/vae.json')
self.rnn.load_json('rnn/rnn.json')
self.state = rnn_init_state(self.rnn)
self.rnn_mode = True
self.input_size = rnn_output_size(EXP_MODE)
self.z_size = 32
if EXP_MODE == MODE_Z_HIDDEN: # one hidden layer
raise Exception("not ported for atari")
self.hidden_size = 40
self.weight_hidden = np.random.randn(self.input_size,
self.hidden_size)
self.bias_hidden = np.random.randn(self.hidden_size)
self.weight_output = np.random.randn(self.hidden_size,
self.num_actions)
self.bias_output = np.random.randn(self.num_actions)
self.param_count = ((self.input_size + 1) * self.hidden_size) + (
(self.hidden_size + 1) * self.num_actions)
else:
# TODO: Not known until env.action_space is queried...
self.weight = np.random.randn(self.input_size, self.num_actions)
self.bias = np.random.randn(self.num_actions)
self.param_count = (self.input_size + 1) * self.num_actions
self.render_mode = False
def __init__(self, load_model=True, env_name="Pong-v0", render_mode=False):
self.env_name = env_name
self.make_env()
self.z_size = 32
self.vae = ConvVAE(batch_size=1,
gpu_mode=False,
is_training=False,
reuse=True)
hps_atari = hps_sample._replace(input_seq_width=self.z_size + self.na)
self.rnn = MDNRNN(hps_atari, gpu_mode=False, reuse=True)
if load_model:
self.vae.load_json('vae/vae.json')
self.rnn.load_json('rnn/rnn.json')
self.state = rnn_init_state(self.rnn)
self.rnn_mode = True
self.input_size = rnn_output_size(EXP_MODE)
self.init_controller()
self.render_mode = False
from baselines.ddpg.models import Actor, Critic
from baselines.ddpg.memory import Memory
from baselines.ddpg.noise import AdaptiveParamNoiseSpec, NormalActionNoise, OrnsteinUhlenbeckActionNoise
from baselines.common import set_global_seeds
import baselines.common.tf_util as U
from baselines import logger
import numpy as np
try:
from mpi4py import MPI
except ImportError:
MPI = None
vae = ConvVAE(batch_size=1, gpu_mode=False, is_training=False, reuse=True)
rnn = MDNRNN(hps_sample, gpu_mode=False, reuse=True)
vae.load_json('vae/vae.json')
rnn.load_json('rnn/rnn.json')
def learn(network, env,
seed=None,
total_timesteps=None,
nb_epochs=None, # with default settings, perform 1M steps total
nb_epoch_cycles=20,
nb_rollout_steps=100,
reward_scale=1.0,
render=False,
render_eval=False,
noise_type='adaptive-param_0.2',
normalize_returns=False,
N_data = len(data_mu) # should be 10k
batch_size = hps_model.batch_size
# save 1000 initial mu and logvars:
initial_mu = np.copy(data_mu[:1000, 0, :] * 10000).astype(np.int).tolist()
initial_logvar = np.copy(data_logvar[:1000, 0, :] * 10000).astype(
np.int).tolist()
with open(os.path.join("tf_initial_z", "initial_z.json"), 'wt') as outfile:
json.dump([initial_mu, initial_logvar],
outfile,
sort_keys=True,
indent=0,
separators=(',', ': '))
reset_graph()
rnn = MDNRNN(hps_model)
# train loop:
hps = hps_model
start = time.time()
for local_step in range(hps.num_steps):
step = rnn.sess.run(rnn.global_step)
curr_learning_rate = (hps.learning_rate - hps.min_learning_rate) * (
hps.decay_rate)**step + hps.min_learning_rate
raw_z, raw_a = random_batch()
inputs = np.concatenate((raw_z[:, :-1, :], raw_a[:, :-1, :]), axis=2)
outputs = raw_z[:, 1:, :] # teacher forcing (shift by one predictions)
feed = {
indent=0,
separators=(',', ': '))
def random_batch():
indices = np.random.permutation(N_data)[0:args.rnn_batch_size]
# suboptimal b/c we are always only taking first set of steps
mu = data_mu[indices][:, :args.rnn_max_seq_len]
logvar = data_logvar[indices][:, :args.rnn_max_seq_len]
action = data_action[indices][:, :args.rnn_max_seq_len]
z = sample_vae(mu, logvar)
d = tf.cast(data_d[indices], tf.float16)[:, :args.rnn_max_seq_len]
return z, action, d
rnn = MDNRNN(args=args)
rnn.compile(optimizer=rnn.optimizer, loss=rnn.get_loss())
# train loop:
start = time.time()
step = 0
input_spec = tf.TensorSpec([1, args.max_frames, args.rnn_input_seq_width],
tf.float32)
rnn._set_inputs(input_spec)
tf.keras.models.save_model(rnn,
model_save_path,
include_optimizer=True,
save_format='tf')
for step in range(args.rnn_num_steps):
curr_learning_rate = (
def make_env(args, dream_env: bool = False, seed: Optional[int] = None,
keep_image: bool = False, wrap_rnn: bool = True, load_model: bool = True):
# Prepares an environment that matches the expected format:
# - The environment returns a 64x64 image in observation["image"]
# and camera data (x, y, z, pitch, yaw) in observation["camera"]
# - If wrapped in the RNN, observation["features"] returns the RNN output to be used for the controller
# - A dream environment simulates the actual environment using the RNN. It never returns an image
# (because the actual environment doesn't get run) and only returns the features
# - A wrapped environment always returns the features, and can return the original image when keep_image is True
full_episode = args.full_episode
# Initialize VAE and MDNRNN networks
if dream_env or wrap_rnn:
features_mode = FeatureMode.MODE_ZCH if args.state_space == 2 else FeatureMode.MODE_ZH
if args.use_gqn:
encoder = GenerativeQueryNetwork(args.gqn_x_dim, args.gqn_r_dim,
args.gqn_h_dim, args.gqn_z_dim, args.gqn_l, name="gqn")
encoder_path = get_path(args, "tf_gqn")
else:
encoder = CVAE(args)
encoder_path = get_path(args, "tf_vae")
rnn = MDNRNN(args)
rnn_path = get_path(args, "tf_rnn")
# TODO: Is this still needed? Do we ever NOT load the model?
if load_model:
encoder.load_weights(str(encoder_path))
rnn.load_weights(str(rnn_path))
if dream_env:
assert keep_image is False, "Dream environment doesn't support image observations"
import json
initial_z_dir = get_path(args, "tf_initial_z")
if args.use_gqn:
initial_z_path = initial_z_dir / "initial_z_gqn.json"
with open(str(initial_z_path), 'r') as f:
initial_z = json.load(f)
else:
initial_z_path = initial_z_dir / "initial_z_vae.json"
with open(str(initial_z_path), 'r') as f:
[initial_mu, initial_logvar] = json.load(f)
# This could probably be done more efficiently
initial_z = np.array([list(elem) for elem in zip(initial_mu, initial_logvar)], dtype=np.float)
# Create dream environment
# noinspection PyUnboundLocalVariable
env = DreamEnv(initial_z, args.z_size, rnn, features_mode)
else:
# Create real environment
kwargs = {}
if args.env_name.startswith("VizdoomTakeCover"):
kwargs["position"] = True # Include position data as observation for Vizdoom environment
print("Making environment {}...".format(args.env_name))
env = gym.make(args.env_name, **kwargs)
print("Raw environment:", env)
from gym.envs.box2d import CarRacing
from vizdoomgym.envs import VizdoomTakeCover
from gym_minigrid.minigrid import MiniGridEnv
if isinstance(env.unwrapped, CarRacing):
# Accept actions in the required format
env = CarRacingActionWrapper(env)
# Transform CarRacing observations into expected format and add camera data
env = CarRacingObservationWrapper(env)
# Cut off "status bar" at the bottom of CarRacing observation (copied from original paper)
env = ClipPixelObservationWrapper(env, (slice(84),))
elif isinstance(env.unwrapped, VizdoomTakeCover):
# Accept actions in the required format
env = VizdoomTakeCoverActionWrapper(env)
# Transform Vizdoom observations into expected format
env = VizdoomObservationWrapper(env)
# Cut off "status bar" at the bottom of the screen (copied from original paper)
env = ClipPixelObservationWrapper(env, (slice(400),))
elif isinstance(env.unwrapped, MiniGridEnv):
from gym_minigrid.wrappers import RGBImgPartialObsWrapper
# Accept actions in the required format
env = MiniGridActionWrapper(env)
# Get RGB image observations from the agent's viewpoint
# (7x7 grid of tiles, with tile size 9 this results in a 63x63 image)
env = RGBImgPartialObsWrapper(env, tile_size=9)
# Add camera data to the observation
env = MiniGridObservationWrapper(env)
# Pad image to 64x64 to match the requirements (in effect just adding one row at the right and bottom edge
# with repeated values from the edge)
env = PadPixelObservationWrapper(env, target_size=64)
else:
env = PixelObservationWrapper(env, pixel_keys=("image",))
if env.observation_space["image"].shape[:2] != (64, 64):
# Resize image to 64x64
env = ResizePixelObservationWrapper(env, size=(64, 64))
# Wrap in RNN to add features to observation
if wrap_rnn:
# noinspection PyUnboundLocalVariable
env = MDNRNNWrapper(env, encoder, rnn, keep_image=keep_image, features_mode=features_mode)
# TODO: Is this needed? It was only ever implemented for CarRacing and didn't work
# Force done=False if full_episode is True
if full_episode:
env = NoEarlyStopWrapper(env)
# Set seed if given
if seed is not None:
env.seed(seed)
print("Wrapped environment:", env)
return env
reset_graph()
# Third, Build the VAE
vae = ConvVAE(z_size=z_size,
batch_size=1,
is_training=False,
reuse=False,
gpu_mode=False)
vae.load_json(os.path.join('vae', 'vae.json'))
# Fourth, build the RNN
hps_atari_sample = hps_sample._replace(input_seq_width=z_size+na)
OUTWIDTH = hps_atari_sample.output_seq_width
rnn = MDNRNN(hps_atari_sample, gpu_mode=False)
rnn.load_json(os.path.join('rnn', 'rnn.json'))
print("All model loaded.")
# Fifth, run the evaluation. -> We have no predictions about the first frame.
start = time.time()
state = rnn_init_state(rnn) # initialize the state.
pz = None
for i in range(steps):
ob = obs[i:i+1] # (1, 64, 64, 1)
action = oh_actions[i:i+1] # (1, n)
