Change stupid class name and update README

Author: ljyloo

.gitignore

@@ -0,0 +1 @@
+*.mca

README.md

@@ -24,3 +24,7 @@ https://mojang.com/2012/02/new-minecraft-map-format-anvil/
 ## Example:
 
 `java -jar Converter.jar /home/ljyloo/LevelDB /home/ljyloo/Anvil 0`
+
+## Attention:
+
+This is an experimental project, it's highly recommended that you should backup your data before converting. Any data corruption caused by this program should be responsible for yourself.

src/com/ljyloo/PE2PC/PE2PC.java …pFormatConverter/MapFormatConverter.javasrc/com/ljyloo/PE2PC/PE2PC.java renamed to src/com/ljyloo/MCMapFormatConverter/MapFormatConverter.java src/com/ljyloo/PE2PC/PE2PC.java renamed to src/com/ljyloo/MCMapFormatConverter/MapFormatConverter.java

@@ -1,4 +1,4 @@
-package com.ljyloo.PE2PC;
+package com.ljyloo.MCMapFormatConverter;
 
 import org.apache.commons.io.filefilter.SuffixFileFilter;
 import org.iq80.leveldb.*;
@@ -16,7 +16,7 @@
 import java.util.Iterator;
 import java.util.Map.Entry;
 
-public class PE2PC {
+public class MapFormatConverter {
 	private final static int DATALAYER_BITS = 7;
 	private final static int BLOCKDATA_BYTES = 32768;
 	private final static int METADATA_BYTES = 16384;
@@ -50,7 +50,7 @@ public static void main(String[] args) throws IOException {
         try {
             checkFolder(args[0], type);
         } catch (Exception e) {
-        	System.err.println("Failed to check folder \"" + args[0] + "\". Problem: " + e.getMessage());
+        	System.err.println("Failed to check folder \"" + args[0] + "\" 's validation. Problem: " + e.getMessage());
         	System.out.println("\n");
             printUsageAndExit();
         }
@@ -127,6 +127,7 @@ private static void checkFolder(String path, int type) throws IOException {
 
 	}
 
+	
     private static void printUsageAndExit() {
         System.out.println("Map converter for Minecraft:Pocket Edition, from format \"LevelDB\" to \"Anvil\", or from format \"Anvil\" to \"LevelDB\". (c) ljyloo 2015");
         System.out.println("");
@@ -302,10 +303,11 @@ public static void levelDB2Anvil(File src, File des) throws IOException{
 	}
 
 	public static void anvilToLevelDB(File src, File des) throws IOException{
+		DB db = null;
 
 	}
 
-	public static String byte2s(byte[] b, boolean ignoreTooLong){
+	private static String byte2s(byte[] b, boolean ignoreTooLong){
 		String s = "0x";
 		int length = b.length;
 		boolean tooLong = false;
@@ -321,7 +323,7 @@ public static String byte2s(byte[] b, boolean ignoreTooLong){
 		return s;
 	}
 
-	public static byte[] intToByteArray(int i){
+	private static byte[] intToByteArray(int i){
 		byte[] result = new byte[4];
 		result[0] = (byte)((i >> 24) & 0xFF);
 		result[1] = (byte)((i >> 16) & 0xFF);
@@ -330,7 +332,7 @@ public static byte[] intToByteArray(int i){
 		return result;
 	}
 
-	public static int byteArrayToInt(byte[] bytes){
+	private static int byteArrayToInt(byte[] bytes){
 		int value= 0;
 		for (int i = 0; i < 4; i++){
 			int shift = (4 - 1 - i) * 8;
@@ -339,7 +341,7 @@ public static int byteArrayToInt(byte[] bytes){
 		return value;
 	}
 
-	public static class LevelDBChunk{
+	private static class LevelDBChunk{
 		public OldDataLayer blockLight;
 		public OldDataLayer skyLight;
 		public OldDataLayer data;