Merge branch 'develop-teammanager-cubewars' of https://github.com/Unity-Technologies/ml-agents into develop-teammanager-cubewars

Project/Assets/ML-Agents/Examples/CubeWars/Materials/dragonfire.mat

     - _ZWrite: 0
     m_Colors:
     - _CameraFadeParams: {r: 0, g: Infinity, b: 0, a: 0}
-    - _Color: {r: 0, g: 0.46433306, b: 1, a: 0.8039216}
+    - _Color: {r: 1, g: 0.22067511, b: 0, a: 0.8039216}
     - _ColorAddSubDiff: {r: 0, g: 0, b: 0, a: 0}
     - _EmissionColor: {r: 0.03921568, g: 0.12030976, b: 0.19215687, a: 1}
     - _SoftParticleFadeParams: {r: 0, g: 0, b: 0, a: 0}

Project/Assets/ML-Agents/Examples/CubeWars/Scripts/SmallCubeAgent.cs

     public override void CollectObservations(VectorSensor sensor)
     {
         sensor.AddObservation(System.Convert.ToInt32(m_Shoot));
-        sensor.AddObservation(System.Convert.ToInt32(m_Dead));
         sensor.AddObservation(m_HitPoints);
         // Direction big agent is looking
         Vector3 dirToSelf = transform.position - m_LargeAgent.transform.position;
         }
         else // Dead
         {
-            AddReward(-.1f * m_Bonus);
+            // AddReward(-.1f * m_Bonus);
+            EndEpisode();
+            gameObject.SetActive(false);
             gameObject.tag = "DeadSmallAgent";
             myBody.GetComponentInChildren<Renderer>().material = deadMaterial;
             m_MyArea.AgentDied();
 
     public override void OnEpisodeBegin()
     {
+        gameObject.SetActive(true);
         m_HitPoints = 1f;
         HealthStatus();
         m_Dead = false;