Version 1.5! Changes:

Bugfix in the Tag class, dealing with TAG_Compound entries being added.

Creative Mode enable/disable.

Signed-off-by: Chris Iverson <[email protected]>

.classpath

@@ -2,5 +2,6 @@
 <classpath>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
+	<classpathentry kind="lib" path="miglayout15-swing.jar" sourcepath="miglayout-src.zip"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

CHANGELOG.txt

@@ -1,10 +1,23 @@
+===============================================================
+Version 1.5 -
+===============================================================
+
+Added the ability to toggle 1.8+ worlds between Creative and
+Survival mode.
+
+Also fixed a bug in the Tag class, that prevented TAG_Compound
+entries from being modified correctly.
+
 ===============================================================
 Version 1.4 -
 ===============================================================
 
-Minor tweaks. Made the GUI use the look and feel of the current system instead of Java's default look and feel, which makes it look better no matter the platform you're on.
+Minor tweaks. Made the GUI use the look and feel of the current
+system instead of Java's default look and feel, which makes it
+look better no matter the platform you're on.
 
-Also modified the 'About' menu text to include the github site for the source code.
+Also modified the 'About' menu text to include the github site
+for the source code.
 
 Changed behavior of folder selection dialog; now, it runs three checks after a folder has been chosen.  In the folder chosen, it checks for the existence of 'level.dat', 'session.lock', and the 'region' folder.  If all three exist, the folder chosen is most likely a world folder instead of the saves folder required, so the program automatically sets the chosen path to the parent folder.  Let me know if any problems come from this.
 

README.txt

@@ -5,6 +5,8 @@ Minecraft Save Seed Reader
 
 This program reads and displays the seed from all found minecraft Save files.   Just select a world's name from the dropdown list that shows up to get that world's seed.
 
+If the save file is a 1.8+ save file, you can switch the world between Creative and Survival mode by checking the box and hitting 'Save'.
+
 If you do not see your save files, or if you get an error stating the saves aren't found, try locating the Minecraft saves folder manually, either in the popup or by opening the Help menu and choosing "Select MC Save Location".  You have to select the 'saves' folder, not any of the world folders in the 'saves' folder.
 
 

src/minecraftSeed/MinecraftSeed.java

@@ -1,11 +1,11 @@
 package minecraftSeed;
 
-import java.awt.FlowLayout;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.io.*;
 
 import javax.swing.*;
+import net.miginfocom.swing.MigLayout;
 
 class DirFilter implements FilenameFilter {
 
@@ -25,8 +25,12 @@ public class MinecraftSeed implements ActionListener {
 	private String[] filePaths;
 	private int validNames;
 	private JComboBox combo;
+	private JCheckBox cbCreative;
+	private boolean creativeEnabled;
+	private JButton btnSave;
+	private String selectedFilePath;
 
-	private final Double version = 1.4;
+	private final Double version = 1.5;
 
 	public MinecraftSeed()
 	{
@@ -68,15 +72,13 @@ public MinecraftSeed()
 
 
 		panel = new JPanel();
-		panel.setLayout(new FlowLayout());
 
 		combo = new JComboBox();
 		combo.addActionListener(this);
 
 		text = new JTextField();
 		text.setColumns(20);
 
-		setupData();
 
 		JMenuBar menuBar = new JMenuBar();
 		JMenu helpMenu = new JMenu("Help");
@@ -100,10 +102,26 @@ public MinecraftSeed()
 
 		menuBar.add(helpMenu);
 		frame.setJMenuBar(menuBar);
+		panel.setLayout(new MigLayout("", "[28px][166px][95px]", "[23px][]"));
 
-		panel.add(combo);
-		panel.add(text);
+		panel.add(combo, "cell 0 0,alignx left,aligny center");
+		panel.add(text, "cell 1 0 2 1,growx");
 		frame.getContentPane().add(panel);
+
+		cbCreative = new JCheckBox("Creative Mode");
+		cbCreative.setEnabled(false);
+		cbCreative.setActionCommand("creativetoggle");
+		cbCreative.addActionListener(this);
+		panel.add(cbCreative, "flowx,cell 1 1,alignx left,aligny top");
+
+		btnSave = new JButton("Save Changes");
+		btnSave.setEnabled(false);
+		btnSave.setActionCommand("save");
+		btnSave.addActionListener(this);
+		panel.add(btnSave, "cell 2 1");
+
+		setupData();
+
 		frame.pack();
 
 		//Center on screen
@@ -117,7 +135,7 @@ public static void main(String[] args) {
 			new MinecraftSeed();
 
 		} catch(Exception e) {  //If anything unexpected goes wrong in the main program,
-								//write it to an error log
+			     				//write it to an error log
 			try {
 				FileOutputStream fos = new FileOutputStream("MinecraftSeed.error.log");
 				e.printStackTrace(new PrintStream(fos));
@@ -133,7 +151,7 @@ public static void main(String[] args) {
 			} catch (IOException e2) {
 				e.printStackTrace();
 			}
-
+			e.printStackTrace();
 		}
 
 	}
@@ -180,7 +198,7 @@ private void setupData()
 							} else {
 								combo.addItem((String)name.getValue());								
 							}
-
+							
 						} catch (FileNotFoundException e) {
 							e.printStackTrace();
 						} catch (IOException e) {
@@ -251,19 +269,40 @@ public void actionPerformed(ActionEvent arg0) {
 			//Make sure something was actually chosen
 			if(val > -1)
 			{
+				//Disable the save button
+				btnSave.setEnabled(false);
+
 				try {
-					FileInputStream fis = new FileInputStream(new File(filePaths[val]));
+					selectedFilePath = filePaths[val];
+					FileInputStream fis = new FileInputStream(new File(selectedFilePath));
 					main = Tag.readFrom(fis);
 					fis.close();
 
 					text.setText(main.findTagByName("RandomSeed").getValue().toString());
+
+					//Only if the save file has a 'GameType' entry will
+					//we allow the user to switch between Creative on and off.
+					Tag creative = main.findTagByName("GameType");
+					if(creative==null)
+					{
+						cbCreative.setEnabled(false);
+					}
+					else
+					{
+						cbCreative.setEnabled(true);
+
+						//Check the box if creative is enabled
+						creativeEnabled = ((Integer)creative.getValue() == 1);
+						cbCreative.setSelected(creativeEnabled);
+					}
 				} catch (FileNotFoundException e) {
 					e.printStackTrace();
 				} catch (IOException e) {
 					e.printStackTrace();
 				}
 			}
-		} else { //One of the menu items was chosen
+		} else { //One of the menu items was chosen, or the checkbox was checked,
+			     //or "save" was pressed
 			String cmd = arg0.getActionCommand();
 
 			//"How to use" menu item
@@ -272,7 +311,10 @@ public void actionPerformed(ActionEvent arg0) {
 				String message = "Choose the world's name from the dropdown list." +
 								 "\nThe world's seed will show up in the textbox." + 
 								 "\n\nIf the list is empty, click on Help > Select MC Save Folder," +
-								 "\nand find and open the saves folder in the file chooser.";
+								 "\nand find and open the saves folder in the file chooser.\n" +
+								 "\nIf the save is a version 1.8+ save, you can switch the world" +
+								 "\nbetween Creative and Survival by checking the checkbox, then" +
+								 "\nhitting Save.";
 
 				JOptionPane.showMessageDialog(panel, message, "How to Use", JOptionPane.INFORMATION_MESSAGE);
 			}
@@ -297,8 +339,50 @@ public void actionPerformed(ActionEvent arg0) {
 				//Only load the data if the user selected a folder
 				if(chooseSaveFolder()) setupData();
 			}
-		}
+
+			//Checkbox checked
+			if(cmd.equals("creativetoggle"))
+			{
+				//File manipulation here
+				creativeEnabled = !creativeEnabled;
+
+				Tag data = main.findTagByName("Data");	
+				Tag creative = data.findTagByName("GameType");
+				data.removeSubTag(creative);
+
+
+				creative = new Tag(Tag.Type.TAG_Int, "GameType", (creativeEnabled) ? 1 : 0);
+				data.addTag(creative);
+
+				//Enable the "Save" button
+				btnSave.setEnabled(true);
+			}
+
+			//Save button pressed
+			if(cmd.equals("save"))
+			{
+				int chosen = JOptionPane.showConfirmDialog(frame, "Are you sure you want to overwrite your save file?", 
+						"Overwrite", JOptionPane.YES_NO_OPTION);
+
+				if(chosen == JOptionPane.YES_OPTION);
+				{
+					try {
+						FileOutputStream fos = new FileOutputStream(new File(selectedFilePath));
+						main.writeTo(fos);
+						fos.close();
+					} catch (FileNotFoundException e) {
+						// TODO Auto-generated catch block
+						JOptionPane.showMessageDialog(null, "Problem saving file: File Not Found", "File Not Found", JOptionPane.ERROR_MESSAGE);
+					} catch (IOException e) {
+						// TODO Auto-generated catch block
+						JOptionPane.showMessageDialog(null, "Problem saving file: IO Error", "IO Error", JOptionPane.ERROR_MESSAGE);
+					}
+
+					JOptionPane.showMessageDialog(frame, "File saved!");
+				}
+			}
+		} // else
 
-	}
+	} //actionPerformed
 
 }

src/minecraftSeed/Tag.java

@@ -150,7 +150,14 @@ public void addTag(Tag tag) {
 		if (type != Type.TAG_List && type != Type.TAG_Compound)
 			throw new RuntimeException();
 		Tag[] subtags = (Tag[]) value;
-		insertTag(tag, subtags.length);
+
+		int index = subtags.length;
+
+		//For TAG_Compund entries, we need to add the tag BEFORE the end,
+		//or the new tag gets placed after the TAG_End, messing up the data.
+		//TAG_End MUST be kept at the very end of the TAG_Compound.
+		if(type == Type.TAG_Compound) index--;
+		insertTag(tag, index);
 	}
 
 	/**