Refactor DDPG

utils/config.py

@@ -36,8 +36,6 @@ class Config:
         self.gae_tau = 1.0
         self.noise_decay_interval = 0
         self.target_network_mix = 0.001
-        self.reward_shift_fn = lambda r: r
-        self.state_shift_fn = lambda s: s
         self.action_shift_fn = lambda a: a
         self.reward_weight = 1
         self.hybrid_reward = False
@@ -47,3 +45,4 @@ class Config:
         self.master_fn = None
         self.master_optimizer_fn = None
         self.num_heads = 10
+        self.min_epsilon = 0