Fix conditional for choosing deterministic action in SACPlayer get_ac…

…tion method (#290)

rl_games/algos_torch/players.py

@@ -230,7 +230,7 @@ def get_action(self, obs, is_deterministic=False):
         if self.has_batch_dimension == False:
             obs = unsqueeze_obs(obs)
         dist = self.model.actor(obs)
-        actions = dist.sample() if is_deterministic else dist.mean
+        actions = dist.sample() if not is_deterministic else dist.mean
         actions = actions.clamp(*self.action_range).to(self.device)
         if self.has_batch_dimension == False:
             actions = torch.squeeze(actions.detach())