Added IntArrayTag

src/opennbt/NBTConstants.java

@@ -59,7 +59,8 @@ public final class NBTConstants {
 		TYPE_BYTE_ARRAY = 7,
 		TYPE_STRING = 8,
 		TYPE_LIST = 9,
-		TYPE_COMPOUND = 10;
+		TYPE_COMPOUND = 10,
+		TYPE_INT_ARRAY = 11;
 	
 	/**
 	 * Default private constructor.

src/opennbt/NBTUtils.java

@@ -4,12 +4,15 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import com.sun.media.sound.InvalidFormatException;
+
 import opennbt.tag.ByteArrayTag;
 import opennbt.tag.ByteTag;
 import opennbt.tag.CompoundTag;
 import opennbt.tag.DoubleTag;
 import opennbt.tag.EndTag;
 import opennbt.tag.FloatTag;
+import opennbt.tag.IntArrayTag;
 import opennbt.tag.IntTag;
 import opennbt.tag.ListTag;
 import opennbt.tag.LongTag;
@@ -85,6 +88,8 @@ public final class NBTUtils {
 			return "TAG_Short";
 		} else if(clazz.equals(StringTag.class)) {
 			return "TAG_String";
+		} else if (clazz.equals(IntArrayTag.class)) {
+			return "TAG_Int_Array";
 		} else {
 			throw new IllegalArgumentException("Invalid tag classs (" + clazz.getName() + ").");
 		}
@@ -119,6 +124,8 @@ public final class NBTUtils {
 			return NBTConstants.TYPE_SHORT;
 		} else if(clazz.equals(StringTag.class)) {
 			return NBTConstants.TYPE_STRING;
+		} else if(clazz.equals(IntArrayTag.class)) {
+			return NBTConstants.TYPE_INT_ARRAY;
 		} else {
 			throw new IllegalArgumentException("Invalid tag classs (" + clazz.getName() + ").");
 		}
@@ -154,6 +161,8 @@ public final class NBTUtils {
 			return ListTag.class;
 		case NBTConstants.TYPE_COMPOUND:
 			return CompoundTag.class;
+		case NBTConstants.TYPE_INT_ARRAY:
+			return IntArrayTag.class;
 		default:
 			throw new IllegalArgumentException("Invalid tag type : " + type + ".");
 		}
@@ -179,7 +188,7 @@ public final class NBTUtils {
 	 * @param array to clone
 	 * @return clone of array
 	 */
-	public static byte[] cloneArray(byte[] array) {
+	public static byte[] cloneByteArray(byte[] array) {
 		if(array == null) {
 			return null;
 		} else {
@@ -192,6 +201,47 @@ public final class NBTUtils {
 		}
 	}
 	
+	/**
+	 * Clones an int array
+	 * @param array to clone
+	 * @return clone of array
+	 */
+	public static int[] cloneIntArray(int[] array) {
+		if(array == null) {
+			return null;
+		} else {
+			int size = array.length;
+			
+			int[] newArray = new int[size];
+			System.arraycopy(array, 0, newArray, 0, size);
+			
+			return newArray;
+		}
+	}
+	
+    /**
+     * Get child tag of a NBT structure.
+     *
+     * @param items
+     * @param key
+     * @param expected
+     * @return child tag
+     * @throws InvalidFormatException
+     */
+    public static <T extends Tag> T getChildTag(Map<String,Tag> items, String key, Class<T> expected) throws InvalidFormatException {
+        if (!items.containsKey(key)) {
+            throw new InvalidFormatException("Missing a \"" + key + "\" tag");
+        }
+        
+        Tag tag = items.get(key);
+        
+        if (!expected.isInstance(tag)) {
+            throw new InvalidFormatException(key + " tag is not of tag type " + expected.getName());
+        }
+        
+        return expected.cast(tag);
+    }
+	
 	/**
 	 * Default private constructor.
 	 */

src/opennbt/stream/NBTInputStream.java

@@ -52,6 +52,7 @@ import opennbt.tag.CompoundTag;
 import opennbt.tag.DoubleTag;
 import opennbt.tag.EndTag;
 import opennbt.tag.FloatTag;
+import opennbt.tag.IntArrayTag;
 import opennbt.tag.IntTag;
 import opennbt.tag.ListTag;
 import opennbt.tag.LongTag;
@@ -188,6 +189,15 @@ public final class NBTInputStream implements Closeable {
 			}
 			
 			return new CompoundTag(name, tagMap);
+        case NBTConstants.TYPE_INT_ARRAY:
+            length = is.readInt();
+            int[] data = new int[length];
+            
+            for (int i = 0; i < length; i++) {
+                data[i] = is.readInt();
+            }
+            
+            return new IntArrayTag(name, data);
 		default:
 			throw new IOException("Invalid tag type: " + type + ".");
 		}

src/opennbt/stream/NBTOutputStream.java

@@ -15,6 +15,7 @@ import opennbt.tag.CompoundTag;
 import opennbt.tag.DoubleTag;
 import opennbt.tag.EndTag;
 import opennbt.tag.FloatTag;
+import opennbt.tag.IntArrayTag;
 import opennbt.tag.IntTag;
 import opennbt.tag.ListTag;
 import opennbt.tag.LongTag;
@@ -145,6 +146,9 @@ public final class NBTOutputStream implements Closeable {
 		case NBTConstants.TYPE_COMPOUND:
 			writeCompoundTagPayload((CompoundTag) tag);
 			break;
+		case NBTConstants.TYPE_INT_ARRAY:
+			writeIntArrayTagPayload((IntArrayTag) tag);
+			break;
 		default:
 			throw new IOException("Invalid tag type: " + type + ".");
 		}
@@ -264,6 +268,20 @@ public final class NBTOutputStream implements Closeable {
 	private void writeEndTagPayload(EndTag tag) {
 		/* empty */
 	}
+	
+	/** Writes a <code>TAG_Int_Array<code> tag.
+	 * @param tag The tag
+	 * @throws IOException if an I/O error occurs.
+	 */
+    private void writeIntArrayTagPayload(IntArrayTag tag) throws IOException {
+        int[] data = tag.getValue();
+        
+        os.writeInt(data.length);
+        
+        for (int i = 0; i < data.length; i++) {
+            os.writeInt(data[i]);
+        } 
+    }
 
 	@Override
 	public void close() throws IOException {

src/opennbt/tag/ByteArrayTag.java

@@ -92,7 +92,7 @@ public final class ByteArrayTag extends Tag {
 	}
 	
 	public Tag clone() {
-		byte[] clonedArray = NBTUtils.cloneArray(this.getValue());
+		byte[] clonedArray = NBTUtils.cloneByteArray(this.getValue());
 		
 		return new ByteArrayTag(this.getName(), clonedArray);
 	}

src/opennbt/tag/IntArrayTag.java

@@ -0,0 +1,99 @@
+package opennbt.tag;
+
+import opennbt.NBTUtils;
+import opennbt.tag.Tag;
+
+/*
+ * OpenNBT License
+ * 
+ * JNBT Copyright (c) 2010 Graham Edgecombe
+ * OpenNBT Copyright(c) 2012 Steveice10
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright notice,
+ *       this list of conditions and the following disclaimer.
+ *       
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *       
+ *     * Neither the name of the JNBT team nor the names of its
+ *       contributors may be used to endorse or promote products derived from
+ *       this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+/**
+ * The <code>TAG_Int_Array</code> tag.
+ */
+public final class IntArrayTag extends Tag {
+
+	/**
+	 * The value.
+	 */
+	private final int[] value;
+
+	/**
+	 * Creates the tag.
+	 * 
+	 * @param name
+	 *            The name.
+	 * @param value
+	 *            The value.
+	 */
+	public IntArrayTag(String name, int[] value) {
+		super(name);
+		this.value = value;
+	}
+
+	@Override
+	public int[] getValue() {
+		return value;
+	}
+
+	@Override
+	public String toString() {
+		StringBuilder hex = new StringBuilder();
+
+		for (int curr : value) {
+			String hexDigits = Integer.toHexString(curr).toUpperCase();
+
+			if (hexDigits.length() == 1) {
+				hex.append("0");
+			}
+
+			hex.append(hexDigits).append(" ");
+		}
+
+		String name = getName();
+		String append = "";
+
+		if (name != null && !name.equals("")) {
+			append = "(\"" + this.getName() + "\")";
+		}
+
+		return "TAG_Int_Array" + append + ": " + hex.toString();
+	}
+
+	@Override
+	public Tag clone() {
+		int[] clonedArray = NBTUtils.cloneIntArray(this.getValue());
+
+		return new IntArrayTag(this.getName(), clonedArray);
+	}
+
+}