Implemented the reset parameters for Banana Collectors and Bouncer (#2258)

Banana Collectors: Length of laser and agent scale
Bouncer: Size of the banana

UnitySDK/Assets/ML-Agents/Examples/BananaCollectors/Scenes/Banana.unity

   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0.44824862, g: 0.49827534, b: 0.57558274, a: 1}
+  m_IndirectSpecularColor: {r: 0.44824898, g: 0.49827564, b: 0.5755826, a: 1}
 --- !u!157 &3
 LightmapSettings:
   m_ObjectHideFlags: 0
     timeScale: 1
     targetFrameRate: 60
   resetParameters:
-    resetParameters: []
+    resetParameters:
+    - key: laser_length
+      value: 1
+    - key: agent_scale
+      value: 1
   agents: []
   listArea: []
   totalScore: 0

UnitySDK/Assets/ML-Agents/Examples/BananaCollectors/Scripts/BananaAgent.cs

     float effectTime;
     Rigidbody agentRb;
     private int bananas;
-
+    private float laser_length;
     // Speed of agent rotation.
     public float turnSpeed = 300;
 
     public bool contribute;
     private RayPerception3D rayPer;
     public bool useVectorObs;
+  
 
     public override void InitializeAgent()
     {
         myArea = area.GetComponent<BananaArea>();
         rayPer = GetComponent<RayPerception3D>();
         myAcademy = FindObjectOfType<BananaAcademy>();
+
+        SetResetParameters();
     }
 
     public override void CollectObservations()
 
         if (shoot)
         {
-            myLaser.transform.localScale = new Vector3(1f, 1f, 1f);
+            myLaser.transform.localScale = new Vector3(1f, 1f, laser_length);
             Vector3 position = transform.TransformDirection(RayPerception3D.PolarToCartesian(25f, 90f));
             Debug.DrawRay(transform.position, position, Color.red, 0f, true);
             RaycastHit hit;
                                          2f, Random.Range(-myArea.range, myArea.range))
             + area.transform.position;
         transform.rotation = Quaternion.Euler(new Vector3(0f, Random.Range(0, 360)));
+
+        SetResetParameters();
     }
 
     void OnCollisionEnter(Collision collision)
     public override void AgentOnDone()
     {
 
+    }
+
+    public void SetLaserLengths()
+    {
+        laser_length = myAcademy.resetParameters["laser_length"];
+    }
+
+    public void SetAgentScale()
+    {
+        var agent_scale = myAcademy.resetParameters["agent_scale"];
+        gameObject.transform.localScale = new Vector3(agent_scale, agent_scale, agent_scale);
+    }
+    
+    public void SetResetParameters()
+    {
+        SetLaserLengths();
+        SetAgentScale();
     }
 }

UnitySDK/Assets/ML-Agents/Examples/Bouncer/Scenes/Bouncer.unity

   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0.44824862, g: 0.49827534, b: 0.57558274, a: 1}
+  m_IndirectSpecularColor: {r: 0.44824898, g: 0.49827564, b: 0.5755826, a: 1}
 --- !u!157 &3
 LightmapSettings:
   m_ObjectHideFlags: 0
     timeScale: 1
     targetFrameRate: 60
   resetParameters:
-    resetParameters: []
+    resetParameters:
+    - key: banana_scale
+      value: 150
   gravityMultiplier: 2
 --- !u!4 &1453982295
 Transform:

UnitySDK/Assets/ML-Agents/Examples/Bouncer/Scenes/BouncerIL.unity

   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0.4482636, g: 0.49828887, b: 0.5755903, a: 1}
+  m_IndirectSpecularColor: {r: 0.44824898, g: 0.49827564, b: 0.5755826, a: 1}
 --- !u!157 &3
 LightmapSettings:
   m_ObjectHideFlags: 0
   brain: {fileID: 11400000, guid: 5527511df7b944e8e9177dd69db5a9c1, type: 2}
   agentParameters:
     agentCameras: []
+    agentRenderTextures: []
     maxStep: 0
     resetOnDone: 1
     onDemandDecision: 1
   brain: {fileID: 11400000, guid: 573920e3a672d40038169c7ffdbdca05, type: 2}
   agentParameters:
     agentCameras: []
+    agentRenderTextures: []
     maxStep: 0
     resetOnDone: 1
     onDemandDecision: 1
     timeScale: 1
     targetFrameRate: 60
   resetParameters:
-    resetParameters: []
+    resetParameters:
+    - key: banana_scale
+      value: 150
   gravityMultiplier: 2
 --- !u!4 &1453982295
 Transform:

UnitySDK/Assets/ML-Agents/Examples/Bouncer/Scripts/BouncerAgent.cs

-using System.Collections;
+using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using MLAgents;
     int numberJumps = 20;
     int jumpLeft = 20;
 
+    ResetParameters resetParams;
+
+
+        var academy = FindObjectOfType<Academy>() as Academy;
+        resetParams = academy.resetParameters;
+
+        SetResetParameters();
     }
 
     public override void CollectObservations()
 
     public override void AgentAction(float[] vectorAction, string textAction)
 	{
-	    for (int i = 0; i < vectorAction.Length; i++)
+        for (int i = 0; i < vectorAction.Length; i++)
 	    {
 	        vectorAction[i] = Mathf.Clamp(vectorAction[i], -1f, 1f);
 	    }
             bb.Respawn();
         }
         jumpLeft = numberJumps;
+
+        SetResetParameters();
     }
 
     public override void AgentOnDone()
                 Quaternion.LookRotation(lookDir),
                 Time.deltaTime * 10f);
         }
+    }
+
+    public void SetBananaScale()
+    {
+        var banana_scale = resetParams["banana_scale"];
+        banana.transform.localScale = new Vector3(banana_scale, banana_scale, banana_scale);
+    }
+
+    public void SetResetParameters()
+    {
+        SetBananaScale();
     }
 }

docs/Learning-Environment-Examples.md

-# Example Learning Environments
+# Example Learning Environments
 
 The Unity ML-Agents toolkit contains an expanding set of example environments
 which demonstrate various features of the platform. Environments are located in
     `VisualBanana` scene. __The visual observation version of
      this environment does not train with the provided default
      training parameters.__
-* Reset Parameters: None.
+* Reset Parameters: Two, corresponding to the following
+  * laser_length: Length of the laser used by the agent
+    * Default: 1
+    * Recommended Minimum: 0.2
+    * Recommended Maximum: 7
+  * agent_scale: Specifies the scale of the agent in the 3 dimensions (equal across the three dimensions)
+    * Default: 1
+    * Recommended Minimum: 0.5
+    * Recommended Maximum: 5
 * Benchmark Mean Reward: 10
 * Optional Imitation Learning scene: `BananaIL`.
 
   * Vector Action space: (Continuous) 3 corresponding to agent force applied for
     the jump.
   * Visual Observations: None.
-* Reset Parameters: None.
+* Reset Parameters: Two, corresponding to the following
+    * banana_scale: The scale of the banana in the 3 dimensions
+        * Default: 150
+        * Recommended Minimum: 50
+        * Recommended Maximum: 250
 * Benchmark Mean Reward: 10
 
 ## [Soccer Twos](https://youtu.be/Hg3nmYD3DjQ)