Added breaks, fixed bugs, added sanity checks. As far as I'm concerned,

it is now beta testing material. More quality of life and beautification
features to come.

osuMapCombiner/src/osuMapCombiner/AddMap.java

@@ -19,7 +19,13 @@ public class AddMap {
 	public void openDialog() {
 		int val = chooser.showOpenDialog(null);
 		if (val==JFileChooser.APPROVE_OPTION) {
-			osuMapCombiner.model.addElement(new ListItem(chooser.getSelectedFile()));
+			ListItem temp = new ListItem(chooser.getSelectedFile());
+			if (!temp.failed) {
+				osuMapCombiner.model.addElement(temp);
+				if (osuMapCombiner.model.getSize()>=2) {
+					osuMapCombiner.main.button2.setEnabled(true);
+				}
+			}
 		}
 	}
 	

osuMapCombiner/src/osuMapCombiner/Convert.java

@@ -116,8 +116,8 @@ BeatmapSetID:-1
 		marathonMap.add("[Metadata]");
 		marathonMap.add("Title:"+marathonName);
 		marathonMap.add("TitleUnicode:"+marathonName);
-		marathonMap.add("Artist:"+marathonName);
-		marathonMap.add("Creator:"+marathonName);
+		marathonMap.add("Artist:["+maps.size()+" songs]");
+		marathonMap.add("Creator:osu!Marathon");
 		marathonMap.add("Version:Marathon");
 		marathonMap.add("Source:"+marathonName);
 		marathonMap.add("Tags:"+marathonName);
@@ -156,8 +156,38 @@ BeatmapSetID:-1
  */
 		marathonMap.add("[Events]");
 		marathonMap.add("//Background and Video events\r\n" + 
-				"//Break Periods\r\n" + 
-				"//Storyboard Layer 0 (Background)\r\n" + 
+				"//Break Periods\r\n");
+
+		timePoint=0;
+		remainder=0;
+		for (int i=0;i<maps.size();i++) {
+			ListItem map = maps.get(i);
+			remainder = timePoint-Math.floor(timePoint);
+			while (remainder>=1) {
+				timePoint++;
+				remainder--;
+			}
+			List<String> breaks = maps.get(i).breaks;
+			if (timePoint==0) {
+				marathonMap.addAll(breaks);
+			} else {
+				for (int j=0;j<breaks.size();j++) {
+					String[] b = breaks.get(j).split(",");
+					b[1] = Integer.toString(Integer.parseInt(b[1])+(int)timePoint);
+					b[2] = Integer.toString(Integer.parseInt(b[2])+(int)timePoint);
+					StringBuilder breakString = new StringBuilder(b[0]);
+					for (int k=1;k<b.length;k++) {
+						breakString.append(",");
+						breakString.append(b[k]);
+					}
+					marathonMap.add(breakString.toString());
+				}
+			}
+			timePoint += map.songDuration;
+		}
+		int breaksEndIndex = marathonMap.size()-1; // Store the last break so we can append to it a little later. 
+		
+				marathonMap.add("//Storyboard Layer 0 (Background)\r\n" + 
 				"//Storyboard Layer 1 (Fail)\r\n" + 
 				"//Storyboard Layer 2 (Pass)\r\n" + 
 				"//Storyboard Layer 3 (Foreground)\r\n" + 
@@ -174,6 +204,8 @@ BeatmapSetID:-1
 
 		timePoint=0;
 		remainder=0;
+		Integer breakStartPoint = -1;
+		Integer breakEndPoint = -1;
 		for (int i=0;i<maps.size();i++) {
 			ListItem map = maps.get(i);
 			remainder = timePoint-Math.floor(timePoint);
@@ -186,6 +218,22 @@ BeatmapSetID:-1
 				String hitobject = map.hitObjects.get(j);
 				String[] split = hitobject.split(",");
 				split[2] = Integer.toString(Integer.parseInt(split[2])+(int)timePoint);
+				if (j==0 && breakStartPoint!=-1) {
+					//Setup a break.
+					breakEndPoint = Integer.parseInt(split[2])-1000;
+					marathonMap.add(breaksEndIndex,"2,"+breakStartPoint+","+breakEndPoint); // Store the last break so we can append to it a little later.
+					breakStartPoint = -1;
+				} else {
+					breakStartPoint = Integer.parseInt(split[2])+1000;
+				}
+				if (j==0) {
+					//Reset the combo color if this is the first note of the next song. (Third bit indicates new combo)
+					int numb = Integer.parseInt(split[3]);
+					if (numb==1 || numb==2 || numb==8) {
+						numb+=4;
+					}
+					split[3] = Integer.toString(numb);
+				}
 				if (split.length>=6) {
 					//Might be a spinner.
 					if (!split[5].contains("|") && !split[5].contains(":")) {
@@ -309,6 +357,8 @@ BeatmapSetID:-1
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
+		
+		JOptionPane.showMessageDialog(osuMapCombiner.main.f, "Marathon map successfully created! Search for "+marathonName+" in osu! to play it!");
 	}
 	
 	public static double AverageValues(DifficultyValues val,List<ListItem> maps) {

osuMapCombiner/src/osuMapCombiner/ListItem.java

@@ -6,6 +6,8 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.swing.JOptionPane;
+
 import org.apache.commons.exec.CommandLine;
 import org.apache.commons.exec.DefaultExecutor;
 import org.apache.commons.exec.PumpStreamHandler;
@@ -25,10 +27,13 @@ public class ListItem{
 	String[] data;
 	List<String> timingPoints;
 	List<String> hitObjects;
+	List<String> breaks;
+	boolean failed=false;
 	public ListItem(File f) {
 		//this.songTitle=s;
 		timingPoints = new ArrayList<String>();
 		hitObjects = new ArrayList<String>();
+		breaks = new ArrayList<String>();
 		songTitle = f.getName();
 		System.out.println("Song Title: "+songTitle);
 		data = utils.readFromFile(f.getAbsolutePath());
@@ -74,9 +79,22 @@ public class ListItem{
 			}
 		}
 		
+		osuMapCombiner.duration += songDuration;
 		//osuMapCombiner.duration += songDuration = mp3utils.GetSongDuration(songLoc.getAbsolutePath());
 		System.out.println("Song duration of "+songTitle+" : "+songDuration+"ms");
 		
+
+		targetString = "Mode: ";
+		do {
+			line = data[i++];
+		} while (!line.contains(targetString));
+		int mode = Integer.parseInt(line.replace(targetString, "").trim());
+		if (mode!=0) {
+			JOptionPane.showMessageDialog(osuMapCombiner.main.f, "This is not an osu! mode map! Parsing has been canceled.");
+			failed=true;
+			return;
+		}
+		
 		targetString="[Difficulty]";
 		do {
 			line = data[i++];
@@ -105,6 +123,20 @@ public class ListItem{
 				}break;
 			}
 		}
+		targetString="[Events]";
+		do {
+			line = data[i++];
+		} while (!line.contains(targetString));
+
+		do {
+			line=data[i++];
+			if (line.trim().length()>3) {
+				if (line.trim().startsWith("2,") && line.split(",").length==3) {
+					breaks.add(line);
+				}
+			}
+		} while (line.trim().length()>3);
+		
 		targetString="[TimingPoints]";
 		do {
 			line = data[i++];

osuMapCombiner/src/osuMapCombiner/osuMapCombiner.java

@@ -41,6 +41,8 @@ public class osuMapCombiner extends JPanel implements ActionListener{
 	
 	public static JFrame f = new JFrame();
 	public static osuMapCombiner main;
+	public JButton button = new JButton("+");
+	public JButton button2 = new JButton("Combine");
 	
 	osuMapCombiner() {
 		osuMapCombiner.main = this;
@@ -56,16 +58,16 @@ public class osuMapCombiner extends JPanel implements ActionListener{
 		
 		Component c = Box.createRigidArea(new Dimension(240,32));
 		
-		JButton button = new JButton("+");
 		button.setActionCommand("Add");
 		button.setPreferredSize(new Dimension(42,42));
 		button.addActionListener(this);
-		JButton button2 = new JButton("Combine");
 		button2.setActionCommand("Combine");
 		button2.setPreferredSize(new Dimension(360,24));
 		button2.addActionListener(this);
 		
 		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		f.setResizable(false);
+		button2.setEnabled(false);
 		
 		FlowLayout layout = new FlowLayout();
 		f.setLayout(layout);
@@ -126,12 +128,17 @@ public class osuMapCombiner extends JPanel implements ActionListener{
 				mapdialog.openDialog();
 			}break;
 			case "Combine":{
-				int pane = JOptionPane.showConfirmDialog(f,"A marathon map with all "+model.getSize()+" maps will be created. The total duration of the marathon map will be "+
-						Math.floor(duration/1000)+"s long. Proceed?"
-			);
-			if (pane == JOptionPane.YES_OPTION) {
-				Convert.Convert();
-			}
+				if (model.getSize()>=2) {
+						int pane = JOptionPane.showConfirmDialog(f,"A marathon map with all "+model.getSize()+" maps will be created. The total duration of the marathon map will be "+
+								(int)Math.floor(duration/1000)+"s long. Proceed?"
+					);
+					if (pane == JOptionPane.YES_OPTION) {
+						Convert.Convert();
+					}
+				} else {
+					button2.setEnabled(false);
+					JOptionPane.showMessageDialog(f, "You must have selected at least 2 songs to create a marathon map!");
+				}
 			}break;
 		}
 	}