will not reload everytime minimized; minor visualizer tweaks; fixed non shuffle out of bounds issue; progress on analysis page

desktop/src/zero1hd/rhythmbullet/desktop/audio/Mp3Manager.java

@@ -68,8 +68,6 @@ public class Mp3Manager implements MusicManager {
 				channels = mp3File.getAudioHeader().getChannels().equals("Mono") ? 1:2;
 				sampleCount = MathUtils.round(Float.valueOf((float) (sampleRate*durationInSeconds))) * channels;
 				
-				//Rounding error probably?
-				sampleCount += readWindowSize*2;
 			} catch (IOException | TagException | ReadOnlyFileException | InvalidAudioFrameException e) {
 				e.printStackTrace();
 			}

desktop/src/zero1hd/rhythmbullet/desktop/audio/MusicListController.java

@@ -75,6 +75,12 @@ public class MusicListController extends Observable implements OnCompletionListe
 			} else {
 				currentPlaybackID++;
 			}
+			
+			if (currentPlaybackID >= musicList.getTotal()) {
+				currentPlaybackID = 0;
+			} else if (currentPlaybackID < 0) {
+				currentPlaybackID = musicList.getTotal()-1;
+			}
 			loadMusic();
 			play();
 		}

desktop/src/zero1hd/rhythmbullet/desktop/graphics/ui/pages/AnalysisPage.java

@@ -22,6 +22,7 @@ public class AnalysisPage extends Page {
 	private Label diffModPercentLabel, heltModPercentLabel, speeModPercentLabel;
 	private Label progressLabel;
 	private TextButton confirmButton;
+	
 	public AnalysisPage(Skin skin, AssetManager assets) {
 		setTextureBackground(assets.get("gradients.atlas", TextureAtlas.class).findRegion("red-round"));
 		table = new Table();
@@ -75,6 +76,9 @@ public class AnalysisPage extends Page {
 			public void changed(ChangeEvent event, Actor actor) {
 				confirmed = true;
 				confirmButton.setDisabled(true);
+				speedModifierSlider.setDisabled(true);
+				healthModifierSlider.setDisabled(true);
+				difficultyModifierSlider.setDisabled(true);
 			}
 		});
 		
@@ -85,6 +89,10 @@ public class AnalysisPage extends Page {
 	}
 	
 	public void processSong(MusicManager mm) {
+		confirmButton.setDisabled(false);
+		speedModifierSlider.setDisabled(false);
+		healthModifierSlider.setDisabled(false);
+		difficultyModifierSlider.setDisabled(false);
 		aa = new AudioAnalyzer(mm);
 		aa.start();
 	}