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[rllib]Update bc/policy.py #2012

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Merged
richardliaw merged 2 commits into from
May 15, 2018
Merged

[rllib]Update bc/policy.py #2012

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1fe616e
Update bc/policy.py
Emily0219 May 7, 2018
60697a0
flake8
richardliaw May 14, 2018
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15 changes: 13 additions & 2 deletions python/ray/rllib/bc/policy.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,10 @@
from __future__ import division
from __future__ import print_function

import ray
import tensorflow as tf
import gym

import ray
from ray.rllib.a3c.policy import Policy
from ray.rllib.models.catalog import ModelCatalog

Expand Down Expand Up @@ -38,7 +40,16 @@ def _setup_graph(self, ob_space, ac_space):
tf.get_variable_scope().name)

def setup_loss(self, action_space):
self.ac = tf.placeholder(tf.int64, [None], name="ac")
if isinstance(action_space, gym.spaces.Box):
self.ac = tf.placeholder(tf.float32,
[None] + list(action_space.shape),
name="ac")
elif isinstance(action_space, gym.spaces.Discrete):
self.ac = tf.placeholder(tf.int64, [None], name="ac")
else:
raise NotImplementedError(
"action space" + str(type(action_space)) +
"currently not supported")
log_prob = self.curr_dist.logp(self.ac)
self.pi_loss = - tf.reduce_sum(log_prob)
self.loss = self.pi_loss
Expand Down