diff --git a/.gitignore b/.gitignore
index 4681f8b57..2a0bf53ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 __pycache__/
 *.egg-info/
-*.pyc
\ No newline at end of file
+*.pyc
+.idea/
diff --git a/multiagent/environment.py b/multiagent/environment.py
index d2e8d3278..86df92de0 100644
--- a/multiagent/environment.py
+++ b/multiagent/environment.py
@@ -210,7 +210,7 @@ def render(self, mode='human'):
                     else:
                         word = alphabet[np.argmax(other.state.c)]
                     message += (other.name + ' to ' + agent.name + ': ' + word + '   ')
-            print(message)
+            # print(message)
 
         for i in range(len(self.viewers)):
             # create viewers (if necessary)
@@ -231,7 +231,8 @@ def render(self, mode='human'):
                 geom = rendering.make_circle(entity.size)
                 xform = rendering.Transform()
                 if 'agent' in entity.name:
-                    geom.set_color(*entity.color, alpha=0.5)
+                    color = (entity.color[0], entity.color[1], entity.color[2], 0.5)
+                    geom.set_color(*color)
                 else:
                     geom.set_color(*entity.color)
                 geom.add_attr(xform)
diff --git a/multiagent/multi_discrete.py b/multiagent/multi_discrete.py
index d7108ad43..041484729 100644
--- a/multiagent/multi_discrete.py
+++ b/multiagent/multi_discrete.py
@@ -4,7 +4,8 @@
 import numpy as np
 
 import gym
-from gym.spaces import prng
+from gym.utils import seeding
+
 
 class MultiDiscrete(gym.Space):
     """
@@ -27,10 +28,12 @@ def __init__(self, array_of_param_array):
         self.high = np.array([x[1] for x in array_of_param_array])
         self.num_discrete_space = self.low.shape[0]
 
+        self.random = seeding.np_random()
+
     def sample(self):
         """ Returns a array with one sample from each discrete action space """
         # For each row: round(random .* (max - min) + min, 0)
-        random_array = prng.np_random.rand(self.num_discrete_space)
+        random_array = self.random.rand(self.num_discrete_space)
         return [int(x) for x in np.floor(np.multiply((self.high - self.low + 1.), random_array) + self.low)]
     def contains(self, x):
         return len(x) == self.num_discrete_space and (np.array(x) >= self.low).all() and (np.array(x) <= self.high).all()
diff --git a/multiagent/policy.py b/multiagent/policy.py
index cf9ad0e1b..9c9cc783b 100644
--- a/multiagent/policy.py
+++ b/multiagent/policy.py
@@ -1,6 +1,8 @@
 import numpy as np
 from pyglet.window import key
 
+from multiagent.scenarios.simple import Scenario
+
 # individual agent policy
 class Policy(object):
     def __init__(self):
@@ -14,6 +16,7 @@ class InteractivePolicy(Policy):
     def __init__(self, env, agent_index):
         super(InteractivePolicy, self).__init__()
         self.env = env
+        #self.agent_index = agent_index
         # hard-coded keyboard events
         self.move = [False for i in range(4)]
         self.comm = [False for i in range(env.world.dim_c)]
diff --git a/multiagent/rendering.py b/multiagent/rendering.py
index cd00c7fb8..d72f1b98e 100644
--- a/multiagent/rendering.py
+++ b/multiagent/rendering.py
@@ -11,19 +11,30 @@
         os.environ['DYLD_FALLBACK_LIBRARY_PATH'] += ':/usr/lib'
         # (JDS 2016/04/15): avoid bug on Anaconda 2.3.0 / Yosemite
 
-from gym.utils import reraise
+#from gym.utils import reraise
 from gym import error
 
 try:
     import pyglet
 except ImportError as e:
-    reraise(suffix="HINT: you can install pyglet directly via 'pip install pyglet'. But if you really just want to install all Gym dependencies and not have to think about it, 'pip install -e .[all]' or 'pip install gym[all]' will do it.")
+    #reraise(suffix="HINT: you can install pyglet directly via 'pip install pyglet'. But if you really just want to install all Gym dependencies and not have to think about it, 'pip install -e .[all]' or 'pip install gym[all]' will do it.")
+    raise ImportError('''
+    Cannot import pyglet.
+    HINT: you can install pyglet directly via 'pip install pyglet'.
+    But if you really just want to install all Gym dependencies and not have to think about it,
+    'pip install -e .[all]' or 'pip install gym[all]' will do it.
+    ''')
 
 try:
     from pyglet.gl import *
 except ImportError as e:
-    reraise(prefix="Error occured while running `from pyglet.gl import *`",suffix="HINT: make sure you have OpenGL install. On Ubuntu, you can run 'apt-get install python-opengl'. If you're running on a server, you may need a virtual frame buffer; something like this should work: 'xvfb-run -s \"-screen 0 1400x900x24\" python <your_script.py>'")
-
+    #reraise(prefix="Error occured while running `from pyglet.gl import *`",suffix="HINT: make sure you have OpenGL install. On Ubuntu, you can run 'apt-get install python-opengl'. If you're running on a server, you may need a virtual frame buffer; something like this should work: 'xvfb-run -s \"-screen 0 1400x900x24\" python <your_script.py>'")
+    raise ImportError('''
+    Error occured while running `from pyglet.gl import *`
+    HINT: make sure you have OpenGL install. On Ubuntu, you can run 'apt-get install python-opengl'.
+    If you're running on a server, you may need a virtual frame buffer; something like this should work:
+    'xvfb-run -s \"-screen 0 1400x900x24\" python <your_script.py>'
+    ''')
 import math
 import numpy as np
 
@@ -342,4 +353,4 @@ def close(self):
             self.window.close()
             self.isopen = False
     def __del__(self):
-        self.close()
\ No newline at end of file
+        self.close()
diff --git a/multiagent/scenario.py b/multiagent/scenario.py
index 02d86773e..1718ea9bf 100644
--- a/multiagent/scenario.py
+++ b/multiagent/scenario.py
@@ -8,3 +8,7 @@ def make_world(self):
     # create initial conditions of the world
     def reset_world(self, world):
         raise NotImplementedError()
+    def reward(self, agent, world):
+    	raise NotImplementedError()
+    def observation(self, agent, world):
+    	raise NotImplementedError()