distinguish learning and episodic learning, enable fast-learning without drawing every step to reduce lag

- repainting every step on no time delay will certainly freeze the app, so "fast-learning" will disable it, only refreshing current episode label
- Added new abstract class "Episodic Learning". Maybe just use an interface instead?! Important because TD learning is not episodic, needs another way to represent the rewards received (maybe mean of last X rewards or sth)
- Opening two JFrames, one with learning infos and one with environment

src/main/java/core/controller/RLController.java

@@ -7,11 +7,12 @@ import core.algo.Learning;
 import core.algo.Method;
 import core.algo.mc.MonteCarloOnPolicyEGreedy;
 import core.gui.View;
+import core.listener.ViewListener;
 import core.policy.EpsilonPolicy;
 
 import javax.swing.*;
 
-public class RLController<A extends Enum> implements ViewListener{
+public class RLController<A extends Enum> implements ViewListener {
     protected Environment<A> environment;
     protected Learning<A> learning;
     protected DiscreteActionSpace<A> discreteActionSpace;
@@ -19,6 +20,7 @@ public class RLController<A extends Enum> implements ViewListener{
     private int delay;
     private int nrOfEpisodes;
     private Method method;
+    private int prevDelay;
 
     public RLController(){
     }
@@ -41,7 +43,7 @@ public class RLController<A extends Enum> implements ViewListener{
          not using SwingUtilities here on purpose to ensure the view is fully
          initialized and can be passed as LearningListener.
          */
-        view = new View<>(learning, this);
+        view = new View<>(learning, environment, this);
         learning.addListener(view);
         learning.learn(nrOfEpisodes);
     }
@@ -58,10 +60,23 @@ public class RLController<A extends Enum> implements ViewListener{
 
     @Override
     public void onDelayChange(int delay) {
+        changeLearningDelay(delay);
+    }
+
+    private void changeLearningDelay(int delay){
         learning.setDelay(delay);
-        SwingUtilities.invokeLater(() -> {
-            view.updateLearningInfoPanel();
-        });
+        SwingUtilities.invokeLater(() -> view.updateLearningInfoPanel());
+    }
+
+    @Override
+    public void onFastLearnChange(boolean fastLearn) {
+        view.setDrawEveryStep(!fastLearn);
+        if(fastLearn){
+            prevDelay = learning.getDelay();
+            changeLearningDelay(0);
+        }else{
+            changeLearningDelay(prevDelay);
+        }
     }
 
     public RLController<A> setMethod(Method method){

src/main/java/core/controller/ViewListener.java

@@ -1,6 +0,0 @@
-package core.controller;
-
-public interface ViewListener {
-    void onEpsilonChange(float epsilon);
-    void onDelayChange(int delay);
-}