split GUI parts from controller into sub class

src/main/java/core/controller/RLControllerGUI.java

@@ -0,0 +1,73 @@
+package core.controller;
+
+import core.Environment;
+import core.algo.Method;
+import core.gui.LearningView;
+import core.gui.View;
+
+import javax.swing.*;
+import java.util.List;
+
+public class RLControllerGUI<A extends Enum> extends RLController<A> {
+    private LearningView learningView;
+
+    public RLControllerGUI(Environment<A> env, Method method, A... actions) {
+        super(env, method, actions);
+    }
+
+    @Override
+    protected void initListeners() {
+        SwingUtilities.invokeLater(() -> {
+            learningView = new View<>(learning, environment, this);
+            learning.addListener(this);
+        });
+    }
+
+    @Override
+    public void onLearnMoreEpisodes(int nrOfEpisodes) {
+        super.onLearnMoreEpisodes(nrOfEpisodes);
+        learningView.updateLearningInfoPanel();
+    }
+
+    @Override
+    public void onLoadState(String fileName) {
+        super.onLoadState(fileName);
+        SwingUtilities.invokeLater(() -> learningView.updateLearningInfoPanel());
+    }
+
+    @Override
+    public void onEpsilonChange(float epsilon) {
+        super.onEpsilonChange(epsilon);
+        SwingUtilities.invokeLater(() -> learningView.updateLearningInfoPanel());
+    }
+
+    @Override
+    protected void changeLearningDelay(int delay) {
+        super.changeLearningDelay(delay);
+        SwingUtilities.invokeLater(() -> learningView.updateLearningInfoPanel());
+    }
+
+    @Override
+    public void onLearningEnd() {
+        super.onLearningEnd();
+        SwingUtilities.invokeLater(() -> learningView.updateRewardGraph(latestRewardsHistory));
+    }
+
+    @Override
+    public void onEpisodeEnd(List<Double> rewardHistory) {
+        super.onEpisodeEnd(rewardHistory);
+        SwingUtilities.invokeLater(() -> {
+            if (!fastLearning) {
+                learningView.updateRewardGraph(latestRewardsHistory);
+            }
+            learningView.updateLearningInfoPanel();
+        });
+    }
+
+    @Override
+    public void onStepEnd() {
+        if (!fastLearning) {
+            SwingUtilities.invokeLater(() -> learningView.repaintEnvironment());
+        }
+    }
+}