Made number of evaluations available in train.py code

To avoid redundant code initialisation by calling main() multiple times, the control to start consecutive evaluation episode is transferred to participants

test.py

@@ -13,6 +13,7 @@ coloredlogs.install(logging.DEBUG)
 
 # All the evaluations will be evaluated on MineRLObtainDiamond-v0 environment
 MINERL_GYM_ENV = os.getenv('MINERL_GYM_ENV', 'MineRLObtainDiamond-v0')
+MINERL_MAX_EVALUATION_EPISODES = int(os.getenv('MINERL_MAX_EVALUATION_EPISODES', 5))
 
 def main():
     """
@@ -24,7 +25,7 @@ def main():
 
     actions = [env.action_space.sample() for _ in range(10)]
     xposes = []
-    for _ in range(1):
+    for _ in range(MINERL_MAX_EVALUATION_EPISODES):
         obs = env.reset()
         done = False
         netr = 0
@@ -37,7 +38,6 @@ def main():
             random_act['attack'] = 1
             obs, reward, done, info = env.step(random_act)
             netr += reward
-            env.render()
 
     env.close()